Photovoltaic connector and inverter

Abstract

Provided are a photovoltaic connector (1300) and an inverter (1000). The photovoltaic connector (1300) comprises a box body (100), a cover body (300) and terminals (200), the box body (100) and the cover body (300) define a first accommodating cavity (130), the cover body (300) is provided with first recessed portions (340), the box body (100) is provided with first through holes (111), a portion of each terminal (200) is located in the first accommodating cavity (130), and a portion of the terminal (200) extends out of the first accommodating cavity (130) through the corresponding first through hole (111); the box body (100) is further provided with second recessed portions (150), and the first recessed portions (340) and the second recessed portions (150) define second through holes (1300a) in communication with the first accommodating cavity (130); the surface of the cover body (300) facing the box body (100) is provided with a first sealing member (400), the first sealing member (400) is connected to the box body (100), the first sealing member (400) comprises a first sealing body (410) and first wrapping portions (420) connected to each other, and the first wrapping portions (420) are arranged in the first recessed portions (340); the surface of the box body (100) facing the cover body (300) is provided with a second sealing member (500), and the second sealing member (500) is connected to the cover body (300); and the second sealing member (500) comprises a second sealing body (510) and second wrapping portions (520) connected to each other, the second wrapping portions (520) are arranged in the second recessed portions (150), and the first wrapping portions (420) and the second wrapping portions (520) define sealing structures for wrapping cables (600).

Description

Photovoltaic connectors and inverters

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on August 29, 2023, with application number 202311103524.9 and invention name “Photovoltaic Connector and Inverter”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of photovoltaic energy, and in particular to a photovoltaic connector and inverter. Background Art

[0003] The inverter is connected to external devices through cables. In order to increase the protection of the cables and facilitate the wiring of the cables to the components in the inverter, a junction box is usually provided on one side of the inverter cabinet. The cables extend into the junction box and are electrically connected to the inverter.

[0004] Currently, the sealing performance of ordinary junction boxes is low, rainwater can easily enter the junction boxes, and the inverter is not suitable for outdoor use.

[0005] Summary of the Invention

[0006] The technical problem to be solved by the embodiments of the present application is to provide a photovoltaic connector and inverter with high sealing performance.

[0007] In a first aspect, the present application discloses a photovoltaic connector, comprising a box body, a cover body, and a terminal, wherein the box body and the cover body enclose a first accommodating cavity, the cover body having a first recessed portion, and the box body having a first through-hole, wherein a portion of the terminal is located within the first accommodating cavity, and a portion of the terminal extends out of the first accommodating cavity through the first through-hole; the box body further having a second recessed portion, wherein the first recessed portion and the second recessed portion enclose a second through-hole communicating with the first accommodating cavity;

[0008] A first sealing member is provided on a surface of the cover body facing the box body, and the first sealing member is connected to the box body, the first sealing member includes a first sealing body and a first wrapping portion that are connected to each other, and the first wrapping portion is provided in the first recessed portion;

[0009] A second sealing member is provided on the surface of the box body facing the cover body, and the second sealing member is connected to the cover body; the second sealing member includes a second sealing body and a second wrapping portion that are connected, the second wrapping portion is provided in the second recessed portion, and the first wrapping portion and the second wrapping portion are arranged to form a sealing structure for wrapping a cable, and the cable is used to extend from the second through hole into the first accommodating cavity to be connected to the terminal.

[0010] A first sealing member seals the inner surface of the box body and the cover body, while a second sealing member seals the inner surface of the cover body and the box body, creating a double seal to improve the waterproof performance of the photovoltaic connector. The first and second sealing members prevent water, dust, and other substances outside the photovoltaic connector from entering the first accommodating chamber through the gap between the cover body and the box body. The first wrapping portion is tightly connected to the first recessed portion, and the second wrapping portion is tightly connected to the second recessed portion. The first and second wrapping portions form a sealing structure for wrapping the cable, thereby tightening the connection between the cable, cover body, and box body, improving the sealing performance of the photovoltaic connector, enhancing the waterproof and dustproof performance of the photovoltaic connector, and preventing water, dust, and other substances outside the photovoltaic connector from entering the first accommodating chamber through the second through-hole. Furthermore, the terminals are fixedly connected to the box body, and the terminals and box body are integrated into one body. The cables can be connected to the terminals of the photovoltaic connector outside the box, reducing the difficulty of connecting the terminals and cables and facilitating manual operation by the user. The terminals and box body can be connected into an integrated structure through an injection molding process, simplifying the structure of the photovoltaic connector and reducing the manufacturing cost of the inverter.

[0011] In combination with the first aspect, in a possible implementation, the box body includes a bottom wall and a first side wall surrounding the bottom wall, the first side wall is connected to the inner surface of the bottom wall, and a boss is provided on the outer surface of the first side wall, and the boss surrounds the first side wall;

[0012] The cover body includes a top wall and a second side wall surrounding the top wall, the second side wall is connected to the inner surface of the top wall, the inner surface of the top wall is tightly connected to the end surface of the first side wall facing away from the bottom wall through the first sealing body, and the end surface of the second side wall facing away from the top wall is connected to the end surface of the boss.

[0013] Because the second sidewall is connected to the inner surface of the top wall, the second sidewall necessarily protrudes beyond the inner surface of the top wall. The second sidewall is connected to the end surface of the boss. Since the first sidewall is connected to the inner surface of the top wall via the first sealing body, the end surface of the boss is not coplanar with the end surface of the first sidewall distal to the bottom wall, and the end surface of the first sidewall distal to the bottom wall protrudes beyond the end surface of the boss. When the photovoltaic connector is exposed to rain outdoors, rainwater has difficulty penetrating the two sealing structures located on different planes and entering the first accommodating cavity. It should be noted that when the photovoltaic connector is exposed to rain outdoors, because the boss is located outside the first sidewall, rainwater entering the first accommodating cavity must first pass through the sealing structure formed by the second sidewall and the end surface of the boss. Because the end surface of the boss is not coplanar with the end surface of the first sidewall distal to the bottom wall, the small amount of rainwater that penetrates between the second sidewall and the end surface of the boss is unlikely to reach the first sealing element, significantly improving the waterproof and dustproof performance of the photovoltaic connector.

[0014] In combination with the first aspect, in a possible implementation, the photovoltaic connector also includes a third side wall connected to the inner surface of the top wall, and the third side wall surrounds the first side wall; the third side wall is located in the encirclement of the second side wall, and there is a gap between the third side wall and the second side wall, and the end surface of the third side wall facing away from the top wall is tightly connected to the end surface of the boss through the second sealing body.

[0015] The end face of the third side wall facing away from the top wall is in close contact with the end face of the boss. Water, dust and other substances entering the first accommodating cavity from outside the photovoltaic connector need to pass through the photovoltaic connector's triple sealing defense line. The first sealing defense line is the end face of the second side wall facing away from the top wall, which is sealed and connected to the end face of the boss to prevent water, dust and other substances from entering the first accommodating cavity. The second sealing defense line is the second sealing component connected between the second side wall and the end face of the boss to prevent water, dust and other substances from entering the first accommodating cavity. The third sealing defense line is the first sealing component connected between the inner surface of the first side wall and the top wall to prevent water, dust and other substances from entering the first accommodating cavity, thereby improving the sealing performance of the photovoltaic connector.

[0016] In conjunction with the first aspect, in one possible implementation, a first groove is defined on the inner surface of the top wall. The first groove accommodates the first sealing body, and the first sealing body contacts a surface of the third sidewall facing away from the second sidewall. The first groove can limit the first sealing member, and the contact between the first sealing member and the third sidewall can improve the sealing performance of the photovoltaic connector.

[0017] In combination with the first aspect, in a possible implementation, the end face of the boss is provided with a second groove, the second groove accommodates the second sealing body, and the second sealing body contacts the surface of the first side wall facing away from the first accommodating cavity. The second groove can limit the second seal, and the second seal contacts the first side wall, which can improve the sealing performance of the photovoltaic connector. The first seal is tightly connected to the end face of the first side wall away from the bottom wall, and contacts the surface of the third side wall facing away from the second side wall, and the second seal is tightly contacted with the end face of the third side wall facing away from the top wall. The second seal is tightly contacted with the first side wall, and it can be obtained that the first seal, the second seal, the first side wall and the third side wall can enclose a sealed space, and the existence of the sealed space can improve the sealing performance between the box body and the cover body, thereby improving the waterproof and dustproof performance of the photovoltaic connector.

[0018] In conjunction with the first aspect, in one possible implementation, the first wrapping portion includes a first connecting portion and a plurality of first wrapping layers spaced apart in a radial direction of the second through hole, wherein the first connecting portion connects the plurality of first wrapping layers. The plurality of first wrapping layers in the first wrapping portion can be removed one by one, thereby facilitating adaptation of the sealed structure formed by the first and second wrapping portions to the diameter of the cable.

[0019] In combination with the first aspect, in a possible implementation, the second wrapping portion includes a second connecting portion and a plurality of second wrapping layers spaced apart along the radial direction of the second through hole, the second connecting portion connecting the plurality of second wrapping layers; the first wrapping layer and the second wrapping layer are arranged relative to each other to wrap the cable. The second wrapping layers can be torn off, so that the sealing structure formed by the second wrapping portion can adapt to cables of different diameters. Specifically, if the cable is large and it is difficult for the first wrapping portion and the second wrapping portion to wrap the cable, one or more layers of the first wrapping layer can be torn off on the first wrapping portion, and at the same time, one or more layers of the second wrapping layer can be torn off on the second wrapping portion to tightly wrap the cable. Generally, the number of first wrapping layers torn off on the first wrapping portion and the number of second wrapping layers torn off on the second wrapping portion are the same. By tearing off several layers of the first wrapping layer on the first wrapping portion and / or tearing off several layers of the second wrapping layer on the second wrapping portion, cables of different diameters can be adapted to be wrapped.

[0020] In combination with the first aspect, in a possible implementation, the first through hole is provided on the bottom wall, and a plug-in portion surrounding the first through hole is protruded from the surface of the bottom wall facing away from the first accommodating cavity, and the plug-in portion is provided with a second accommodating cavity. The first through hole connects the first accommodating cavity and the second accommodating cavity, and the part of the terminal extending outside the first accommodating cavity is located in the second accommodating cavity.

[0021] The terminal extending out of the first accommodating cavity can be protected by the plug-in part, the plug-in part can be plugged into and matched with the through slot in the box body, the structure of the plug-in part adapts to the structure of the through slot, the plug-in part can pass through the through slot and extend into the accommodating cavity, and the part of the terminal in the second accommodating cavity can pass through the through slot and be electrically connected to the circuit board in the accommodating cavity, thereby facilitating the assembly of the photovoltaic connector and the box body.

[0022] In combination with the first aspect, in one possible implementation, the surface of the bottom wall facing away from the cover body is provided with a third groove surrounding the plug-in portion, the third groove is provided with a third seal, and the third seal is in contact with the surface of the plug-in portion facing away from the second accommodating cavity. The third seal can be in close contact with the outer surface of the box body, and can improve the sealing performance of the photovoltaic connector and the box body. The third seal can prevent water, dust and other substances from entering the first accommodating cavity, and can also prevent water, dust and other substances from entering the accommodating cavity of the box body. The third groove can limit the third seal and improve the connection stability between the third seal and the box body.

[0023] In conjunction with the first aspect, in one possible implementation, the photovoltaic connector further includes a fourth seal, secured to a surface of the bottom wall facing away from the cover, and surrounding the third seal. The fourth seal can tighten the connection between the first bottom wall and the housing, thereby improving the sealing performance between the photovoltaic connector and the housing. The fourth seal can prevent water, dust, and other substances from entering the first accommodating cavity, while also preventing water, dust, and other substances from entering the housing cavity of the housing.

[0024] In conjunction with the first aspect, in one possible implementation, a mounting platform is protruded from the surface of the bottom wall facing the cover, and the portion of the terminal located within the first accommodating cavity is fixedly connected to the mounting platform. The mounting platform is used to be fixedly connected to the terminal so that the terminal can be stably fixed within the first accommodating cavity.

[0025] In combination with the first aspect, in a possible implementation, the second side wall is provided with a protrusion, the protrusion is provided with a first hinge hole, the end face of the boss is provided with a groove, the boss is provided with a second hinge hole connected to the groove, the protrusion extends into the groove, and the first hinge hole and the second hinge hole are penetrated by a pin. The pin is inserted into the first hinge hole and the second hinge hole, the cover body is hinged to the box body, and the cover body can be flipped relative to the box body. When connecting the cable to the terminal, the cover body can be flipped to be in an open state, and the cable can be directly extended into the first accommodating cavity and connected to the terminal, making the connection between the cable and the terminal very convenient. After the cable and the terminal are connected, the cover body is flipped to close the cover body, so that the cover body and the box body can be sealed and connected, making the wiring process of the photovoltaic connector and the cable very convenient.

[0026] In combination with the first aspect, in a possible implementation, the end face of the second side wall facing away from the top wall is recessed in a direction away from the boss to form a drainage groove, and the drainage groove connects the gap between the second side wall and the third side wall. The drainage groove can drain the accumulated water between the second side wall and the third side wall, reducing the possibility of the accumulated water seeping into the first accommodating cavity. Exemplarily, the photovoltaic connector can be used outdoors. When it rains outdoors, although the end face of the second side wall facing away from the top wall is sealed to the end face of the boss, rainwater may still enter the gap between the second side wall and the third side wall through the gap between the second side wall and the end face of the boss. In order to improve the waterproof performance of the photovoltaic connector, the accumulated water in the gap between the second side wall and the third side wall is discharged through the drainage groove, reducing the possibility of the sealing performance of the second seal being affected by the accumulated water in the gap between the second side wall and the third side wall.

[0027] In combination with the first aspect, in one possible implementation, a boss is provided on the inner surface of the top wall, the boss is located between the gap between the second side wall and the third side wall, the end surface of the boss facing away from the top wall abuts against the end surface of the boss, the cover body is provided with a first fixing hole that passes through the top wall and the boss, the boss is provided with a second fixing hole corresponding to the first fixing hole, a fastener is passed through the first fixing hole, and the fastener extends into the second fixing hole. The cover body and the box body can be fixed by the fastener, wherein the boss is provided with a first fixing hole for the fastener to pass through, and the boss is provided between the second side wall and the third side wall. Since the boss is provided between the second side wall and the third side wall, the space of the cover body that would otherwise be occupied by the fastener and the boss's first fixing hole can be saved, and the boss is provided with a second fixing hole that cooperates with the fastener, which can save the space that would otherwise be occupied by the fastener and the box body.

[0028] In the second aspect, the present application discloses an inverter, which includes a box body, a circuit board and the photovoltaic connector as described in the first aspect, the box body having a receiving cavity and a through groove connected to the receiving cavity, the receiving cavity receiving the circuit board; the box body of the photovoltaic connector is located outside the box body, the terminals of the photovoltaic connector extend into the receiving cavity through the through groove, and are electrically connected to the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0030] FIG1 is a schematic structural diagram of a photovoltaic system applied to a home power station according to an embodiment of the present application;

[0031] FIG2 is a schematic structural diagram of a photovoltaic system applied to an industrial photovoltaic power station provided by an embodiment of the present application;

[0032] FIG3 is a schematic diagram of a three-dimensional structure of an inverter provided in one embodiment of the present application;

[0033] FIG4 is an exploded view of the inverter in FIG3 ;

[0034] FIG5 is a schematic diagram of the three-dimensional structure of a photovoltaic connector provided in one embodiment of the present application;

[0035] FIG6 is an exploded schematic diagram of the photovoltaic connector in FIG5 ;

[0036] FIG7 is another exploded schematic diagram of the photovoltaic connector in FIG5 ;

[0037] FIG8 is another exploded schematic diagram of the photovoltaic connector in FIG5 ;

[0038] FIG9 is another exploded schematic diagram of the photovoltaic connector in FIG5 ;

[0039] FIG10 is a schematic diagram of the three-dimensional structure of a cover provided in one embodiment of the present application;

[0040] FIG11 is another exploded schematic diagram of the photovoltaic connector in FIG5 ;

[0041] FIG12 is another exploded schematic diagram of the photovoltaic connector in FIG5 ;

[0042] FIG13 is a schematic diagram of the three-dimensional structure of a box body provided in one embodiment of the present application;

[0043] FIG14 is a schematic diagram of the three-dimensional structure of the box body in FIG13 from another perspective;

[0044] FIG15 is a schematic diagram of a three-dimensional structure of a first sealing member provided in one embodiment of the present application;

[0045] FIG16 is a schematic diagram of the three-dimensional structure of a second sealing member provided in one embodiment of the present application.

[0046] Explanation of the accompanying symbols: 1. Box-type transformer; 2. Distribution room; 3. Intelligent sub-array controller; 1000. Inverter; 20. Photovoltaic module; 30. On-grid and off-grid controller; 40. Electrical equipment; 50. Power sensor; 60. Power grid; 70. Energy storage system; 80. Photovoltaic optimizer; 90. Combiner box; 1000. Inverter; 1100. Box body; 1110. Accommodating cavity; 1120. Through groove; 1200. Circuit board; 1300. Photovoltaic connector; 1300a. Second through hole; 100. Box body; 110. Bottom wall; 110a. First partition plate; 110b. Blocking piece; 111. First through hole; 112. Connecting part; 112a. First through hole Second accommodating cavity; 112b, second partition plate; 113, third groove; 114, third sealing member; 115, fourth sealing member; 116, mounting platform; 120, first side wall; 130, first accommodating cavity; 140, boss; 141, second groove; 142, second fixing hole; 143, groove; 144, second hinge hole; 145, latch; 150, second recess; 100b, fastener; 200, terminal; 300, cover; 310, top wall; 311, first groove; 312, boss; 313, limiting rib; 320, second side wall; 321, boss; 321a, first hinge hole; 322, drainage groove; 330, third side wall; 300a, first fixing hole; 340, first recessed portion; 350, reinforcing rib; 400, first sealing member; 410, first sealing body; 420, first wrapping portion; 421, first connecting portion; 422, first wrapping layer; 500, second sealing member; 510, second sealing body; 520, second wrapping portion; 521, second connecting portion; 522, second wrapping layer; 600, cable. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0048] Please refer to Figure 1, which is a structural schematic diagram of a photovoltaic system applied to a home power station provided in an embodiment of the present application. In one embodiment, the photovoltaic system includes an inverter 1000, a photovoltaic module 20, a grid-connected and off-grid controller 30, an electrical device 40, a power sensor 50, a power grid 60 and an energy storage system 70.

[0049] The PV optimizer is installed on PV modules 20, which convert sunlight into electricity. It is used to improve the power generation efficiency of PV modules 20. It is a component-level power electronic device with DC input and output. Connected in series with PV modules 20, it uses predictive current and voltage technology to ensure the modules are always operating in optimal conditions. Based on the principle of a step-down topology, it addresses the impact of shadows, inconsistent orientation, or differences in module electrical specifications on power generation in PV power plants, achieving maximum module power output and improving system power generation.

[0050] The photovoltaic assembly 20 is electrically connected to the inverter 1000, and the photovoltaic assembly 20 transmits direct current to the inverter 1000. The inverter 1000 is electrically connected to the energy storage system 70 and the on-grid and off-grid controller 30 respectively.

[0051] In one embodiment, the inverter 1000 has a DC conversion functional module. The DC conversion functional module of the inverter 1000 can be used to convert the DC power generated by the inverter 1000 into the voltage required for energy storage in the energy storage system 70, and transmit it to the energy storage system 70 for energy storage.

[0052] In one embodiment, the inverter 1000 converts the direct current (DC) power provided by the photovoltaic modules 20 into alternating current (AC) power and transmits the AC power to the on-grid and off-grid controller 30. The on-grid and off-grid controller 30 is electrically connected to the power consumer 40 and to the power grid 60. In practical applications, the on-grid and off-grid controller 30 can operate in both an off-grid state and a grid-connected state.

[0053] When the on-grid controller 30 is in the off-grid state, there is no electrical connection between the on-grid controller 30 and the power grid 60, and the AC power transmitted by the inverter 1000 is only provided to the power-consuming device 40. The power-consuming device 40 includes household appliances, such as televisions, refrigerators, and washing machines.

[0054] When the on-grid and off-grid controller 30 is in the grid-connected state, it is electrically connected to the grid 60 via the power sensor 50. When the power generated by the photovoltaic module 20 cannot meet the power demand of the power-consuming device 40, the grid 60 can provide power to the photovoltaic system through the on-grid and off-grid controller 30. When the power generated by the photovoltaic module 20 exceeds the power consumed by the power-consuming device 40, the on-grid and off-grid controller 30 can transmit the excess power to the grid 60. The power sensor 50 is used to measure the power flow between the photovoltaic system and the grid 60. For example, the power sensor 50 can be an electric meter.

[0055] Please refer to Figure 2, which is a schematic diagram of the structure of a photovoltaic system for an industrial photovoltaic power station according to one embodiment of the present application. In one embodiment, the photovoltaic system includes a box-type transformer 1, an intelligent sub-array controller 3, an inverter 1000, photovoltaic modules 20, an energy storage system 70, a photovoltaic optimizer 80, and a combiner box 90.

[0056] The photovoltaic optimizer 80 is installed on the photovoltaic assembly 20 . The photovoltaic assembly 20 is used to convert light energy into electrical energy. The photovoltaic optimizer 80 is used to improve the power generation efficiency of the photovoltaic assembly 20 .

[0057] In some embodiments, the photovoltaic system may include a plurality of photovoltaic assemblies 20 and a photovoltaic optimizer 80. Each photovoltaic assembly 20 in the plurality of photovoltaic assemblies 20 is electrically connected to an inverter 1000.

[0058] In one embodiment, the inverter 1000 is connected to the energy storage system 70 to store the DC power generated by photovoltaic inverters. In one embodiment, a DC combiner box (not shown in FIG. 2 ) is provided between the multiple inverters 1000 and the energy storage system 70 to combine the DC power generated by the multiple inverters 1000 and transmit it to the energy storage system 70 for storage. It is understood that the inverter 1000 may be provided with a DC conversion module capable of converting the DC power generated by the photovoltaic modules 20 into a DC power that can be stored by the energy storage system 70.

[0059] The combiner box 90 shown in Figure 2 is an AC combiner box, used to aggregate the AC power generated by multiple inverters 1000 and transmit it to a box-type transformer 1. The box-type transformer 1 is used to convert the voltage of the AC power generated by the inverters 1000 and then transmit it to the power grid 60 through the power distribution room 2. Signal transmission (as indicated by the dashed lines in Figure 2) occurs between the smart array controller 3 and at least one of the combiner box 90, the box-type transformer 1, the inverters 1000, and the environmental monitor (not shown). The smart array controller 3 is used to implement communication control of the photovoltaic system.

[0060] It should be noted that Figures 1 and 2 only schematically illustrate the application scenarios of photovoltaic systems in household power stations and industrial photovoltaic power stations, and do not represent the structure, size and position relationship of the internal components of the photovoltaic system. Those skilled in the art may make adjustments according to actual needs.

[0061] Referring to Figures 3 and 4 , the present application discloses an inverter 1000, which includes a housing 1100, a circuit board 1200, and a photovoltaic connector 1300. Housing 1100 has a receiving cavity 1110 and a through slot 1120. Through slot 1120 connects the outer surface of housing 1100 with the inner surface of housing 1100, thereby ensuring that through slot 1120 is in communication with housing 1110. Housing 1110 is configured to receive circuit board 1200. Photovoltaic connector 1300 is fixedly connected to the outer surface of housing 1100, with terminals of photovoltaic connector 1300 extending into housing cavity 1110 to electrically connect with circuit board 1200. By fixing the photovoltaic connector 1300 on the outer surface of the box 1100 of the inverter 1000, the cable can be connected to the photovoltaic connector 1300, and the cable 600 does not need to be extended into the receiving cavity 1110 of the box 1100 to be electrically connected to the circuit board 1200, which facilitates the connection between the inverter 1000 and the cable and shortens the assembly time of the inverter 1000.

[0062] In this application, inverter 1000 can convert direct current (DC) into alternating current (AC) and transmit it to a load or grid 60 via photovoltaic connector 1300. In one possible implementation, circuit board 1200 is electrically connected to a photovoltaic module. The photovoltaic module converts light energy into DC, and circuit board 1200 converts the DC into AC, which is then transmitted to a load or grid via photovoltaic connector 1300.

[0063] Referring to Figures 5-7 , the photovoltaic connector 1300 includes a housing 100, a cover 300, and a terminal 200. The housing 100 and the cover 300 enclose a first accommodating cavity 130. The housing 100 is provided with a first through-hole extending through both the inner and outer surfaces of the housing 100, and the terminal 200 is inserted through the first through-hole. A portion of the terminal 200 is located within the first accommodating cavity 130, while a portion of the terminal 200 extends out of the first accommodating cavity 130 through the first through-hole. It is understood that the portion of the terminal 200 outside the first accommodating cavity 130 protrudes from the outer surface of the housing 100. The terminal 200 is fixedly connected to the housing 100, forming an integral unit with the housing 100. The cable 600 can be connected to the terminal 200 of the photovoltaic connector 1300 outside the housing 1100, simplifying manual operation and simplifying connection between the terminal 200 and the cable 600. The terminal 200 and the box body 100 can be connected into an integrated structure through the injection molding process, thereby simplifying the structure of the photovoltaic connector 1300 and reducing the manufacturing cost of the inverter 1000.

[0064] A first sealing member 400 is provided on the surface of the cover 300 facing the box body 100. The first sealing member 400 is connected to the box body 100. It will be appreciated that the first sealing member 400 is connected between the cover 300 and the box body 100 to seal the cover 300 and the box body 100. The first sealing member 400 can prevent water, dust, and other substances outside the photovoltaic connector 1300 from entering the first accommodating cavity 130.

[0065] A second sealing member 500 is provided on the surface of the box body 100 facing the cover 300. The second sealing member 500 is connected to the cover 300. It is understood that the second sealing member 500 is also connected between the cover 300 and the box body 100 to seal the cover 300 and the box body 100. The second sealing member 500 can also prevent water, dust, and other substances outside the photovoltaic connector 1300 from entering the first receiving chamber 130.

[0066] The first sealing member 400 seals and connects the inner surface of the box body 100 and the cover body 300 , and the second sealing member 500 seals and connects the inner surface of the cover body 300 and the box body 100 , thereby achieving a double sealing effect to improve the waterproof and dustproof properties of the photovoltaic connector 1300 .

[0067] Referring to Figures 7, 8, and 9, the cover 300 is provided with a first recessed portion 340 and a second recessed portion 150. The first recessed portion 340 and the second recessed portion 150 are disposed opposite each other and enclose a second through hole 1300a. The second through hole 1300a is in communication with the first accommodating cavity 130. The cable 600 can pass through the second through hole 1300a into the first accommodating cavity 130 to be electrically connected to the terminal 200.

[0068] The first sealing member 400 includes a first sealing body and a first wrapping portion. The first sealing body and the first wrapping portion are connected as one body, and the first wrapping portion is disposed in the first recessed portion.

[0069] The second sealing member 500 includes a second sealing body and a second wrapping portion. The second sealing body and the second wrapping portion are connected as a whole. The second wrapping portion is disposed in the second recessed portion 150 .

[0070] The first wrapping portion 420 and the second wrapping portion 520 are arranged relative to each other to form a sealing structure capable of wrapping the cable 600. Specifically, the first wrapping portion 420 is in close contact with the first recessed portion 340, and the second wrapping portion 520 is in close contact with the second recessed portion 150. The first wrapping portion 420 and the second wrapping portion 520 cooperate to wrap the cable 600, thereby preventing water and dust outside the photovoltaic connector 1300 from entering the first accommodating cavity 130, thereby improving the waterproof and dustproof performance of the photovoltaic connector 1300. The first sealing member 400 and the second sealing member 500 can both be a circular sealing strip, and the first wrapping portion and the second wrapping portion can be deformable silicone sealing blocks.

[0071] In the present application, the box body 100 includes a bottom wall and a first side wall 120 surrounding the bottom wall. The first side wall 120 is connected to the inner surface of the bottom wall. The inner surface of the bottom wall belongs to or is the surface of the box body 100 facing the cover body 300. A first through hole 111 is provided in the bottom wall, and the first through hole 111 passes through the outer surface of the bottom wall and the inner surface of the bottom wall. The outer surface of the bottom wall is the surface of the bottom wall facing away from the cover body 300.

[0072] A boss 140 is formed on the outer surface of the first sidewall 120. The outer surface of the first sidewall 120 is the surface of the first sidewall 120 facing away from the first accommodating cavity 130. The boss 140 surrounds the first sidewall 120. The end surface of the boss 140 faces the cover 300, and the first sidewall 120 protrudes from the end surface of the boss 140 in a direction closer to the cover 300.

[0073] The cover body 300 includes a top wall 310 and a second side wall 320 surrounding the top wall 310. The second side wall 320 is connected to the inner surface of the top wall 310. The inner surface of the top wall 310 is tightly connected to the end surface of the first side wall 120 facing away from the bottom wall 110 through the first sealing body 410. The end surface of the second side wall 320 facing away from the top wall 310 is connected to the end surface of the boss 140.

[0074] It should be noted that the end face of the boss 140 is a flange plane, the end face of the boss 140 is smoothly set, and the end face of the second side wall 320 facing away from the top wall 310 is in close contact with the end face of the boss 140, which can improve the sealing performance of the box body 100 and the cover body 300, so that the photovoltaic connector 1300 can achieve a triple sealing effect, thereby improving the waterproof and dustproof performance of the photovoltaic connector 1300.

[0075] Because the second sidewall 320 is connected to the inner surface of the top wall 310, the second sidewall 320 necessarily protrudes beyond the inner surface of the top wall 310. Furthermore, the second sidewall 320 is connected to the end surface of the boss 140. Since the first sidewall 120 is connected to the inner surface of the top wall 310 via the first sealing body 410, the end surface of the boss 140 and the end surface of the first sidewall 120 away from the bottom wall 110 are not coplanar, and the end surface of the first sidewall 120 away from the bottom wall 110 protrudes beyond the end surface of the boss 140. When the photovoltaic connector 1300 encounters rain outdoors, it is difficult for rainwater to penetrate the two sealing structures located on different planes and enter the first accommodating cavity 130. It should be noted that when the photovoltaic connector 1300 encounters rain outdoors, since the boss 140 is located on the periphery of the first side wall 120, in order for rainwater to enter the first accommodating cavity 130, it must first pass through the sealing structure formed by the second side wall 320 and the end face of the boss 140. Since the end face of the boss 140 and the end face of the first side wall 120 away from the bottom wall 110 are not in the same plane, the small amount of rainwater that passes through between the second side wall 320 and the end face of the boss 140 is difficult to contact the first seal 400, which can improve the waterproof performance of the photovoltaic connector 1300.

[0076] The cover 300 also includes a third sidewall connected to the inner surface of the top wall 310. The third sidewall surrounds the first sidewall 120 and is located within the encirclement of the second sidewall 320, with a gap between the third sidewall and the second sidewall 320. The end surface of the third sidewall facing away from the top wall 310 is tightly connected to the end surface of the boss 140 via a second sealing member 510. Specifically, the end surface of the first sidewall 120 facing away from the bottom wall 110 is sealed to the inner surface of the top wall 310 via a first sealing member 400, while the end surface of the second sidewall 320 facing away from the top wall 310 is sealed to the end surface of the boss 140 via a second sealing member 500. The second sidewall 320 is located outside the first sidewall 120, with a gap between the inner surface of the second sidewall 320 and the outer surface of the first sidewall 120. The third sidewall 330 is located within the gap between the inner surface of the second sidewall 320 and the outer surface of the first sidewall 120. The first wrapping portion 420 is located between the second side wall 320 and the third side wall, and the second side wall 320 and the third side wall can limit the first wrapping portion 420 .

[0077] It should be noted that water, dust, and other substances entering the first accommodating cavity 130 from outside the photovoltaic connector 1300 must pass through the photovoltaic connector 1300's triple sealing lines. The first sealing line is the sealed connection between the end surface of the second side wall 320 facing away from the top wall 310 and the end surface of the boss 140, preventing water, dust, and other substances from entering the first accommodating cavity 130. The second sealing line is the connection between the second sealing member 500 and the end surface of the boss 140, preventing water, dust, and other substances from entering the first accommodating cavity 130. The third sealing line is the connection between the first side wall 120 and the inner surface of the top wall 310, preventing water, dust, and other substances from entering the first accommodating cavity 130. On the one hand, the first side wall 120 protrudes from the end face of the boss 140 in the direction close to the cover body 300, so that the end face of the first side wall 120 facing away from the bottom wall 110 is not in the same plane as the end face of the boss 140; on the other hand, since the first side wall 120 is connected to the inner surface of the top wall 310 through the first seal 400, and the second side wall 320 is connected to the end face of the boss 140 through the second seal 500, and since the first side wall 120 has a certain height dimension, the end face of the boss 140 and the inner surface of the top wall 310 are not in the same plane; it can be concluded that the second line of defense and the third line of defense of the photovoltaic connector 1300 are not in the same plane. When the photovoltaic connector 1300 encounters rain outdoors, it is difficult for rainwater to penetrate the two defense lines of different planes in the photovoltaic connector 1300 and enter the first accommodating cavity 130, which can improve the waterproof performance of the photovoltaic connector 1300.

[0078] In one embodiment, referring to Figures 10 to 14 , a first groove 311 is provided on the inner surface of the top wall 310, and the first sealing body 410 is provided in the first groove 311. Specifically, the first wrapping portion 420 extends out of the first groove 311 and is located on the first recessed portion 340. The first groove 311 can limit the first sealing member 400, thereby improving the stability of the connection between the first sealing member 400 and the cover body 300 and the box body 100. It should be noted that a limiting rib 313 is convexly provided on the inner surface of the top wall 310, and the limiting rib 313 forms a circle, and the limiting rib 313 is located within the encirclement of the third side wall 330. There is a gap between the limiting rib 313 and the third side wall 330. The limiting rib 313, the third side wall 330 and the inner surface of the top wall 310 form a first groove 311. The first sealing body 410 is in the first groove 311 and can be in close contact with the surface of the third side wall 330 facing away from the second side wall 320.

[0079] In one embodiment, the end surface of the boss 140 is provided with a second groove 141. The second groove 141 accommodates the first sealing body 410. The second groove 141 can limit the second sealing member 500, thereby improving the stability of the connection between the second sealing member 500, the cover 300, and the box body 100. It should be noted that the end surface of the boss 140 is recessed in a direction away from the cover 300 to form the second groove 141. The second sealing body 510 in the second groove 141 is in close contact with the first sidewall 120. It should be noted that the first seal 400 is tightly connected to the end face of the first side wall 120 away from the bottom wall 110, and is in contact with the surface of the third side wall 330 facing away from the second side wall. The second seal 500 is in tight contact with the end face of the third side wall 330 facing away from the top wall 310. The second seal 500 is in tight contact with the first side wall 120. It can be obtained that the first seal 400, the second seal 500, the first side wall 120 and the third side wall 330 can form a sealed space. The existence of the sealed space can improve the sealing performance between the box body 100 and the cover body 300, thereby improving the waterproof and dustproof performance of the photovoltaic connector 1300.

[0080] The end surface of the second side wall facing away from the top wall 310 is provided with a protrusion 321, and the protrusion 321 is provided with a first hinge hole 321a. The boss 140 is provided with a groove 143, into which the protrusion 321 extends. Specifically, the end surface of the boss 140 is recessed in a direction away from the cover 300 to form the groove 143. The boss 140 is also provided with a second hinge hole 144, which is connected to the groove 143. The first hinge hole 321a and the second hinge hole 144 are penetrated by a latch 145. It is understandable that the second side wall is hinged to the boss 140 via the latch 145, so that the cover 300 can be flipped relative to the box body 100. For example, when connecting the cable 600 to the terminal 200, the cover 300 can be flipped to be in an open state to facilitate the connection of the cable 600 to the terminal 200. After the cable 600 is connected to the terminal 200, the cover 300 is flipped over to close the cover 300, and the cover 300 is sealed and connected to the box body 100. It should be noted that there can be multiple protrusions 321, each of which is provided with a first hinge hole 321a, and the boss 140 can be provided with the same number of grooves 143 as the number of protrusions 321, with the protrusions 321 corresponding to the grooves 143 one-to-one.

[0081] In one embodiment, the end surface of the second side wall facing away from the top wall 310 is recessed in a direction away from the boss 140 to form a drainage groove 322. The number of the drainage grooves 322 can be multiple. The drainage grooves 322 are connected to the gap between the second side wall 320 and the third side wall 330. The drainage grooves 322 can discharge the accumulated water between the second side wall 320 and the third side wall 330 to the outside of the photovoltaic connector 1300. For example, the photovoltaic connector 1300 can be used outdoors. When it rains outdoors, although the end face of the second side wall 320 facing away from the top wall 310 is sealed with the end face of the boss 140, rainwater may still enter the gap between the second side wall 320 and the end face of the boss 140 from the gap between the second side wall 320 and the end face of the boss 140. In order to improve the waterproof performance of the photovoltaic connector 1300, the accumulated water in the gap between the second side wall 320 and the third side wall 330 is discharged through the drainage groove 322, thereby reducing the possibility of affecting the sealing performance of the second sealing component 500 due to the accumulation of water in the gap between the second side wall 320 and the third side wall 330.

[0082] In one embodiment, referring to Figure 10, a boss 312 is protruded from the inner surface of the top wall 310, and the number of the boss 312 can be multiple. The boss 312 is located between the gap between the second side wall 320 and the third side wall 330. The end surface of the boss 312 facing away from the top wall 310 abuts against the end surface of the boss 140. The cover body 300 is provided in a first fixing hole 300a that passes through the top wall 310 and the boss 312. The boss 140 is provided with a second fixing hole 142 corresponding to the first fixing hole 300a. A fastener is passed through the first fixing hole 300a, and the fastener extends into the second fixing hole 142. The fastener can be a captive screw. A plurality of reinforcing ribs 350 are provided between the second side wall 320 and the third side wall 330. The second side wall 320 can be connected to the boss 312 via the reinforcing ribs 350. The third side wall 330 can be connected to the boss 312 via the reinforcing ribs 350. The second side wall 320 can also be connected to the third side wall 330 via the reinforcing ribs 350. Because the boss 312 is provided between the second side wall 320 and the third side wall 330, the space occupied by the cover 300 due to the fastener mating with the first fixing hole 300a of the boss 312 is reduced. The boss 140 is provided with a second fixing hole 142 that mates with the fastener, thus reducing the space occupied by the fastener mating with the box body 100.

[0083] In one embodiment, referring to Figures 12-14 , a first through hole 111 is provided on the bottom wall 110 of the box body 100. An inserting portion 112 is protruding from the outer surface of the bottom wall 110, surrounding the first through hole 111. The outer surface of the bottom wall 110 is the surface of the bottom wall 110 facing away from the cover 300. The inserting portion 112 defines a second accommodating cavity 112a. The first through hole 111 communicates with the first accommodating cavity 130 and the second accommodating cavity 112a. The portion of the terminal 200 extending from the first accommodating cavity 130 is received in the second accommodating cavity 112a. The plug-in portion 112 surrounds the portion of the terminal 200 extending outside the first accommodating cavity 130. The plug-in portion 112 can protect the terminal 200. The structure of the plug-in portion 112 is adapted to the structure of the through slot 1120. The plug-in portion 112 can pass through the through slot 1120 and extend into the accommodating cavity 1110. The portion of the terminal 200 in the second accommodating cavity 112a passes through the through slot 1120 and is electrically connected to the circuit board 1200 in the accommodating cavity 1110.

[0084] In this application, referring to Figures 13-14 , there can be multiple terminals 200, each of which is spaced apart. The inner surface of the bottom wall 110 is provided with multiple first partitions 110a, which are used to separate two adjacent terminals 200. The plug portion 112 is provided with multiple second partitions 112b, which are used to separate two adjacent terminals 200. Exemplarily, the inverter 1000 outputs three-phase power via a photovoltaic connector 1300. The photovoltaic connector 1300 includes four terminals 200, three of which are connected to the three phase wires of the circuit board 1200, respectively. The remaining terminal 200 is connected to the neutral wire of the circuit board 1200. Four cables 600 extend into the first accommodating cavity 130 and connect to the four terminals 200. It can be understood that the inverter 1000 can transmit three-phase AC power via the photovoltaic connector 1300.

[0085] In one embodiment, referring to FIG13 , a mounting platform 116 is protruding from the surface of the bottom wall 110 facing the cover 300, and the portion of the terminal 200 located in the first accommodating cavity 130 is fixedly connected to the mounting platform 116. Specifically, the portion of the terminal 200 located in the first accommodating cavity 130 is fixed to the mounting platform 116 via a stud. When the terminal 200 is connected to the cable 600, the cable 600 contacts the terminal 200, and the nut is screwed onto the stud and pressed against the cable 600, thereby ensuring a stable electrical connection between the cable 600 and the terminal 200.

[0086] Referring to Figure 14 , the surface of the bottom wall 110 facing away from the cover 300 is provided with a third groove 113 surrounding the plug-in portion 112. A third seal 114 is provided in this third groove 113, contacting the surface of the plug-in portion 112 facing away from the second accommodating cavity 112a. This third seal 114 is an adhesive sealant strip that provides close contact with the outer surface of the box 1100, enhancing the sealing performance between the photovoltaic connector 1300 and the box 1100. The third groove 113 also serves to position the third seal 114, improving the stability of the connection between the third seal 114 and the box body 100.

[0087] In one embodiment, the photovoltaic connector 1300 further includes a fourth sealing member 115, which is in close contact with the surface of the bottom wall 110 facing away from the cover 300 and surrounds the third sealing member 114. The fourth sealing member 115 is an adhesive sealing strip and is fixedly connected to the box body 100 via a connector (not shown). There are multiple connectors, each of which passes through the fourth sealing member 115 and the bottom wall 110. The portion of the connector extending into the first accommodating cavity 130 is connected to the blocking member 110b, and a certain distance exists between the blocking member 110b and the terminal 200 located in the first accommodating cavity 130.

[0088] In one embodiment, referring to FIG. 15 , the first wrapping portion 420 includes a first connecting portion 421 and a plurality of first wrapping layers 422 spaced apart along the radial direction of the second through hole 1300a. The first connecting portion 421 connects the plurality of first wrapping layers 422. The first wrapping layers 422 in the first wrapping portion 420 can be removed layer by layer, specifically along the dotted lines in FIG. 15 , to facilitate adapting the sealed structure formed by the first wrapping portion 420 and the second wrapping portion 520 to the diameter of the cable 600.

[0089] Referring to Figure 16 , the second wrapping portion 520 includes a second connecting portion 521 and a plurality of second wrapping layers 522 spaced apart along the radial direction of the second through hole 1300a. The second connecting portion 521 connects the plurality of second wrapping layers 522. The first wrapping layer 422 and the second wrapping layer 522 are disposed opposite each other to wrap the cable 600. The plurality of second wrapping layers 522 can be removed one by one, specifically by tearing off the second wrapping layers 522 along the dotted lines in Figure 16 , so that the sealing structure formed by the second wrapping portion 520 can accommodate cables 600 of varying diameters. Specifically, if the cable 600 is relatively large and the first and second wrapping portions 420 and 520 are insufficient to enclose the cable 600, one or more first wrapping layers 422 can be removed from the first wrapping portion 420, and at the same time, one or more second wrapping layers 522 can be removed from the second wrapping portion 520 to tightly enclose the cable 600. Generally, the number of first wrapping layers 422 torn off on the first wrapping portion 420 and the number of second wrapping layers 522 torn off on the second wrapping portion 520 are the same. By tearing off several layers of the first wrapping layer 422 on the first wrapping portion 420 and / or tearing off several layers of the second wrapping layer 522 on the second wrapping portion 520, cables 600 of different diameters can be adapted for wrapping.

[0090] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0091] The first, second and various numerical numbers involved in this document are only for the convenience of description and are not intended to limit the scope of this application.

[0092] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0093] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A photovoltaic connector, characterized in that: The invention comprises a box body, a cover body and a terminal, wherein the box body and the cover body are arranged to form a first accommodating cavity, the cover body is provided with a first recessed portion, the box body is provided with a first through hole, a part of the terminal is located in the first accommodating cavity, and a part of the terminal extends out of the first accommodating cavity through the first through hole; the box body is further provided with a second recessed portion, and the first recessed portion and the second recessed portion form a second through hole communicating with the first accommodating cavity; A first sealing member is disposed on a surface of the cover body facing the box body, and the first sealing member is connected to the box body, the first sealing member comprises a first sealing body and a first wrapping portion connected to each other, and the first wrapping portion is disposed in the first recessed portion; A second sealing member is provided on the surface of the box body facing the cover body, and the second sealing member is connected to the cover body; the second sealing member includes a second sealing body and a second wrapping portion that are connected, the second wrapping portion is provided in the second recessed portion, and the first wrapping portion and the second wrapping portion are arranged to form a sealing structure for wrapping a cable, and the cable is used to extend from the second through hole into the first accommodating cavity to be connected to the terminal.

2. The photovoltaic connector according to claim 1, characterized in that: The box body comprises a bottom wall and a first side wall surrounding the bottom wall, wherein the first side wall is connected to the inner surface of the bottom wall, and a boss is protruding from the outer surface of the first side wall, and the boss surrounds the first side wall; The cover body includes a top wall and a second side wall surrounding the top wall, the second side wall is connected to the inner surface of the top wall, the inner surface of the top wall is tightly connected to the end surface of the first side wall facing away from the bottom wall through the first sealing body, and the end surface of the second side wall facing away from the top wall is connected to the end surface of the boss.

3. The photovoltaic connector according to claim 2, characterized in that: The photovoltaic connector also includes a third side wall connected to the inner surface of the top wall, and the third side wall surrounds the first side wall; the third side wall is located in the encirclement of the second side wall, and there is a gap between the third side wall and the second side wall, and the end surface of the third side wall facing away from the top wall is tightly connected to the end surface of the boss through the second sealing body.

4. The photovoltaic connector according to claim 3, characterized in that: A first groove is disposed on the inner surface of the top wall. The first groove accommodates the first sealing body. The first sealing body contacts the surface of the third side wall facing away from the second side wall.

5. The photovoltaic connector according to claim 2, characterized in that: A second groove is disposed on the end surface of the boss. The second groove accommodates the second sealing body. The second sealing body contacts the surface of the first side wall facing away from the first accommodating cavity.

6. The photovoltaic connector according to claim 1, characterized in that: The first wrapping portion includes a first connecting portion and a plurality of first wrapping layers spaced apart in a radial direction of the second through hole, and the first connecting portion connects the plurality of first wrapping layers.

7. The photovoltaic connector according to claim 6, characterized in that: The second wrapping portion includes a second connecting portion and a plurality of second wrapping layers spaced apart in a radial direction of the second through hole, wherein the second connecting portion connects the plurality of second wrapping layers; the first wrapping layer and the second wrapping layer are arranged opposite to each other to wrap the cable.

8. The photovoltaic connector according to claim 2, characterized in that: The first through hole is arranged on the bottom wall, and a plug-in portion surrounding the first through hole is protruded on the surface of the bottom wall facing away from the first accommodating cavity, and the plug-in portion is provided with a second accommodating cavity. The first through hole connects the first accommodating cavity and the second accommodating cavity, and a portion of the terminal extending out of the first accommodating cavity is located in the second accommodating cavity.

9. The photovoltaic connector according to claim 8, characterized in that: A third groove surrounding the plug-in portion is disposed on a surface of the bottom wall facing away from the cover body, and a third sealing member is disposed in the third groove. The third sealing member contacts a surface of the plug-in portion facing away from the second accommodating cavity.

10. The photovoltaic connector according to claim 9, characterized in that: The photovoltaic connector further includes a fourth sealing member, which is fixed to a surface of the bottom wall facing away from the cover body, and surrounds the third sealing member.

11. The photovoltaic connector according to claim 2, characterized in that: A mounting platform is protruded from the surface of the bottom wall facing the cover body, and a portion of the terminal located in the first accommodating cavity is fixedly connected to the mounting platform.

12. The photovoltaic connector according to claim 2, characterized in that: The second side wall is provided with a protrusion, the protrusion is provided with a first hinge hole, the end face of the boss is provided with a groove, the boss is provided with a second hinge hole connected with the groove, the protrusion extends into the groove, and the first hinge hole and the second hinge hole are penetrated by pins.

13. The photovoltaic connector according to claim 3, characterized in that: The end surface of the second side wall facing away from the top wall is recessed in a direction away from the boss to form a drainage groove, and the drainage groove communicates with the gap between the second side wall and the third side wall.

14. The photovoltaic connector according to claim 3, characterized in that: A boss is protruded from the inner surface of the top wall, and the boss is located between the gap between the second side wall and the third side wall. The end surface of the boss facing away from the top wall abuts against the end surface of the boss. The cover body is provided at a first fixing hole that passes through the top wall and the boss. The boss is provided with a second fixing hole corresponding to the first fixing hole. A fastener is passed through the first fixing hole, and the fastener extends into the second fixing hole.

15. An inverter, characterized in that: The inverter includes a box body, a circuit board and a photovoltaic connector as described in any one of claims 1 to 14, wherein the box body has a receiving cavity and a through slot connected to the receiving cavity, and the receiving cavity receives the circuit board; the box body of the photovoltaic connector is located outside the box body, and the terminals of the photovoltaic connector extend into the receiving cavity through the through slot and are electrically connected to the circuit board.

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