Connector, connector assembly, and micro-inverter system

Abstract

The application discloses a connector, a connector assembly and a micro-inverter system, relates to the technical field of connectors, and aims to solve the problem that a wire locking screw on a connector is prone to being separated from the connector. The connector provided by the application comprises an insulating shell, the insulating shell is provided with a mounting channel, a wiring terminal comprises a terminal body and a wire locking screw arranged in the mounting channel, the terminal body is provided with a wiring hole and a threaded hole which are in communication, the extension direction of the wiring hole and the extension direction of the threaded hole intersect, the wiring hole is used for accommodating a cable, the wire locking screw is threadedly connected with the threaded hole and is used for locking the cable in the wiring hole, and an anti-separation structure is arranged on the insulating shell and located on the side of the wire locking screw which is away from the cable, and the anti-separation structure is used for blocking the wire locking screw from being separated from the threaded hole. The anti-separation structure can block the wire locking screw from being separated, and the wire locking screw can stably fix and compress the cable in the wiring hole.

Description

Technical Field

[0001] This application relates to the field of connector technology, specifically to a connector, connector assembly, and micro inverter system. Background Technology

[0002] Connectors, also called plugs, are electronic components used to connect two active devices and transmit current or signals. On the AC output side of a photovoltaic inverter system, connectors are typically used to achieve the electrical connection with the distribution box. These connectors require mating cables to complete power transmission. The wiring methods for the connector terminals include the wire-locking screw crimping method, where the cable is directly crimped by rotating the wire-locking screw.

[0003] However, when working at heights on rooftops, the locking screws on the connectors can easily come loose, making it difficult for workers to perform wiring operations and failing to guarantee long-term electrical connection stability. Utility Model Content

[0004] This application provides a connector, connector assembly, and micro inverter system that can solve the problem that the locking screws on the connector are prone to coming off the connector.

[0005] To achieve the above objectives, in a first aspect, the connector provided in this application includes:

[0006] Insulating housing with mounting channels;

[0007] The terminal block includes a terminal body and a locking screw disposed in the mounting channel. The terminal body has a connected wiring hole and a threaded hole. The extension direction of the wiring hole and the extension direction of the threaded hole intersect. The wiring hole is used to accommodate the cable. The locking screw is threadedly engaged with the threaded hole and is used to lock the cable in the wiring hole.

[0008] The anti-detachment structure is installed on the insulating housing and located on the side of the locking screw facing away from the cable. The anti-detachment structure is used to prevent the locking screw from coming out of the threaded hole.

[0009] In some embodiments of this application, the insulating housing covers at least a portion of the locking screw, and the portion of the insulating housing covering the locking screw serves to form an anti-loosening structure.

[0010] In some embodiments of this application, the anti-detachment structure is an anti-detachment hole formed on the insulating housing, the anti-detachment hole is connected to the mounting channel, and the locking screw is exposed to the outside of the insulating housing through the anti-detachment hole.

[0011] In some embodiments of this application, the head end of the locking screw is provided with a wrench groove, which is exposed to the outside of the insulating housing through an anti-loosening hole.

[0012] In some embodiments of this application, a first snap-fit ​​portion is provided on the terminal body, and a second snap-fit ​​portion is provided on the inner wall of the mounting channel, with the first snap-fit ​​portion and the second snap-fit ​​portion snap-fitted together.

[0013] In some embodiments of this application, a boss is provided on the inner wall of the mounting channel. The boss has a first surface and a second surface that are opposite to each other in the extending direction of the mounting channel. The second snap-fit ​​portion is provided on the first surface, and a limiting step surface is formed on the outer periphery of the terminal body.

[0014] When the limiting step surface abuts against the second surface, the first locking part and the second locking part are locked together.

[0015] In some embodiments of this application, the insulating housing has a first end face and a second end face that are disposed opposite to each other, the mounting channel passes through the first end face and the second end face, a first locking mark is provided on the first end face, and the first locking mark is disposed near the port of the mounting channel;

[0016] When the cable is locked into the wiring hole, the first locking mark is flush with the surface where the end of the locking screw is located.

[0017] In some embodiments of this application, the first locking mark has at least two, a positioning part is provided on the outer periphery of the terminal body, and an adapter part is provided on the inner wall of the mounting channel;

[0018] When the positioning part and the adapter part are connected, the through direction of the threaded hole is parallel to the arrangement direction of at least two first locking marks.

[0019] In some embodiments of this application, the connector further includes:

[0020] The first sealing ring is fitted around the outer periphery of the insulating housing and is used to seal the connecting connector and the mating connector.

[0021] In some embodiments of this application, the connector further includes:

[0022] A waterproof outer shell is fitted around the outer periphery of the insulating shell and is detachably connected to the insulating shell;

[0023] The second sealing ring is placed between the insulating shell and the waterproof shell, and is used to seal the connection between the insulating shell and the waterproof shell.

[0024] In some embodiments of this application, the connector further includes:

[0025] The wire clamp assembly is installed at the end of the waterproof housing that is opposite to the insulating housing. One end of the wire clamp assembly extends into the waterproof housing, and the other end extends out of the waterproof housing.

[0026] Fasteners are connected to the end of the waterproof housing that is opposite to the insulating housing.

[0027] The cable clamping assembly extends out of the waterproof housing and contracts under the pressure of fasteners to clamp the cable.

[0028] In some embodiments of this application, the insulating housing includes an insulating main housing and an end cap. The insulating main housing is provided with a first channel and an opening communicating with the first channel. The wiring terminal is provided in the first channel and exposed to the outside of the insulating main housing through the opening. The end cap is provided with a second channel. An anti-detachment structure is provided on the end cap. The end cap is fitted around the outer periphery of the insulating main housing so that the first channel and the second channel communicate to form an installation channel.

[0029] In some embodiments of this application, a third snap-fit ​​portion is provided on the insulating main housing, and a fourth snap-fit ​​portion is provided on the end cover, with the third snap-fit ​​portion and the fourth snap-fit ​​portion being snap-fit ​​connected.

[0030] In some embodiments of this application, a second locking mark is provided on the end face of the end cap facing away from the insulating main housing, and the second locking mark is located near the port of the second channel;

[0031] When the cable is locked into the wiring hole, the second locking mark is flush with the surface where the end of the locking screw is located.

[0032] Secondly, this application also provides a connector assembly, comprising:

[0033] The connector described in any of the above technical solutions; and,

[0034] A mating connector, used for interlocking with other connectors.

[0035] Thirdly, this application also provides a micro-inverter system, comprising:

[0036] Distribution box;

[0037] Micro inverters, and,

[0038] Connector components as described in any of the above technical solutions;

[0039] The micro inverter is connected to the distribution box via a corresponding connector assembly.

[0040] The above-mentioned technical solution of this application has at least the following beneficial effects:

[0041] In this technical solution, the anti-loosening structure is installed on the insulating shell and located on the side of the locking screw facing away from the cable. That is, the anti-loosening structure is located on the outer periphery of the locking screw, effectively preventing the screw from coming loose. This ensures the screw stably secures the cable and presses it firmly into the wiring hole, preventing short circuits caused by cable displacement and guaranteeing the safe operation of the electrical system and the stability of the cable's electrical connection. During installation, workers do not need to worry about the locking screw accidentally coming loose, allowing for more efficient wiring operations. Simultaneously, it reduces the probability of equipment failure due to loose locking screws, decreasing the cost of maintenance and replacement. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a perspective view of a connector in one of the embodiments of this application;

[0044] Figure 2 This is an exploded view of a connector according to an embodiment of this application;

[0045] Figure 3 This is a perspective view of a connector from another angle in an embodiment of this application;

[0046] Figure 4 This is a front view of a connector according to an embodiment of this application;

[0047] Figure 5 yes Figure 4 Cross-sectional view of section AA;

[0048] Figure 6 yes Figure 5 Enlarged view of part B in the image;

[0049] Figure 7 This is a side view of a connector according to an embodiment of this application;

[0050] Figure 8 This is a schematic diagram of the structure of the terminal block in a connector according to an embodiment of this application;

[0051] Figure 9 This is a schematic diagram of the connector assembly in an embodiment of this application;

[0052] Figure 10 This is a perspective view of another connector in the embodiments of this application;

[0053] Figure 11 This is one of the exploded views of another connector in the embodiments of this application;

[0054] Figure 12 This is a second exploded view of another connector in the embodiments of this application;

[0055] Figure 13 This is a cross-sectional view of another connector in an embodiment of this application;

[0056] Figure 14 This is a side view of another connector in an embodiment of this application;

[0057] Figure 15 This is an exploded view of another connector in the embodiments of this application;

[0058] Figure 16 This is a schematic diagram of the micro inverter system in the embodiments of this application.

[0059] Explanation of reference numerals in the attached figures:

[0060] 10-Connector; 1-Insulating housing; 11-Mounting channel; 111-Adaptor; 12-Second snap-fit; 13-Boss; 131-First surface; 132-Second surface; 14-First end face; 141-First locking mark; 15-Second end face; 16-Insulating main housing; 161-First channel; 162-Opening; 163-Third snap-fit; 17-End cap; 171-Second channel; 172-Fourth snap-fit; 173-Second locking mark; 2-Terminal; 2 1-Terminal body; 211-Wiring hole; 212-Threaded hole; 213-First snap-fit ​​part; 214-Limiting step surface; 215-Positioning part; 22-Wire locking screw; 221-Tightening groove; 222-Tail end; 3-Anti-detachment structure; 31-Anti-detachment hole; 4-First sealing ring; 5-Waterproof housing; 6-Second sealing ring; 7-Wire clamping assembly; 71-Wire sealing body; 72-Wire clamping claw; 8-Fastener; 20-Mating connector; 30-Distribution box; 40-Miniature inverter; 100-Cable. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0063] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0065] This application provides a connector, a connector assembly, and a micro-inverter system, which are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0066] Connectors, also called plugs, are electronic components used to connect two active devices and transmit current or signals. On the AC output side of a photovoltaic inverter system, connectors are typically used to achieve the electrical connection with the distribution box. These connectors require mating cables to transmit power. The wiring methods for the connector terminals include the wire-locking screw method, where the cable is directly crimped by rotating the wire-locking screw.

[0067] However, when working at heights on rooftops, the locking screws on the connectors can easily come loose, hindering wiring operations and compromising long-term electrical connection stability. Furthermore, maintenance personnel need to periodically inspect and tighten the screws, increasing labor and time costs.

[0068] Therefore, this application provides a connector 10. For example... Figure 1 and Figure 2As shown, the connector 10 includes an insulating housing 1, a terminal block 2, and an anti-disengagement structure 3. The insulating housing 1 has a mounting channel 11. The terminal block 2 includes a terminal body 21 disposed in the mounting channel 11 and a locking screw 22. The terminal body 21 has a communicating wiring hole 211 and a threaded hole 212. The extending directions of the wiring hole 211 and the threaded hole 212 intersect. The wiring hole 211 is used to accommodate a cable 100. The locking screw 22 is threaded into the threaded hole 212 and is used to lock the cable 100 within the wiring hole 211. The anti-disengagement structure 3 is disposed on the insulating housing 1 and located on the side of the locking screw 22 facing away from the cable 100. The anti-disengagement structure 3 is used to prevent the locking screw 22 from disengaging from the threaded hole 212.

[0069] In this technical solution, the anti-detachment structure 3 is installed on the insulating housing 1 and located on the side of the locking screw 22 facing away from the cable 100. That is, the anti-detachment structure 3 is located on the outer periphery of the locking screw 22, effectively preventing the locking screw 22 from coming loose. This ensures that the locking screw 22 stably fixes and presses the cable 100 into the wiring hole 211, avoiding short circuits caused by cable 100 displacement, and guaranteeing the safe operation of the electrical system and the electrical connection stability of the cable 100. During installation, construction personnel do not need to worry about the locking screw 22 accidentally coming loose, allowing for more efficient wiring operations. Simultaneously, it reduces the probability of equipment failure due to the locking screw 22 coming loose, reducing the cost of maintenance and equipment replacement.

[0070] In this embodiment, such as Figure 3 As shown, the insulating housing 1 covers at least a portion of the locking screw 22, and the portion of the insulating housing 1 covering the locking screw 22 constitutes the anti-loosening structure 3. The portion of the insulating housing 1 covering the locking screw 22 can limit the locking screw 22, preventing it from loosening or coming out under external forces such as vibration and impact. This application directly utilizes the insulating housing 1 to constitute the anti-loosening structure 3, eliminating the need for additional design and manufacturing of specialized anti-loosening parts, reducing the number of components, and simplifying the overall structure of the connector 10.

[0071] In other words, when the insulating housing 1 covers the locking screw 22, it effectively sets a boundary for the axial movement of the locking screw 22. Without the insulating housing 1 covering the locking screw 22, the locking screw 22 may shift axially due to external impacts, vibrations, or other factors, eventually dislodging from the threaded hole 212. However, by covering the locking screw 22 with the insulating housing 1, this excessive axial shift is prevented, keeping it in a relatively stable position.

[0072] Please continue to refer to Figure 2 and Figure 3The anti-detachment structure 3 is an anti-detachment hole 31 formed on the insulating housing 1. The anti-detachment hole 31 communicates with the mounting channel 11, and the locking screw 22 is exposed to the outside of the insulating housing 1 through the anti-detachment hole 31. This method allows operators to clearly see the status of the locking screw 22 through the anti-detachment hole 31, enabling them to visually check whether the locking screw 22 is tightened, loose, or damaged. During routine inspections or maintenance, problems can be detected and addressed promptly, ensuring the long-term stable operation of the connector 10.

[0073] Based on the above embodiments, the head end of the wire locking screw 22 is provided with a wrench groove 221. The wrench groove 221 is exposed to the outside of the insulating housing 1 through the anti-dislodgement hole 31, so that the operator can directly and accurately insert the wrench groove 221 with the corresponding tool (such as a screwdriver). There is no need for additional complicated operation steps to expose the wrench groove 221, and the operation of the wire locking screw 22 can be carried out directly, which improves the construction and maintenance efficiency.

[0074] For example, the anti-loosening hole 31 is a circular or semi-circular hole, and the inner diameter of the anti-loosening hole 31 is smaller than the head diameter of the wire-locking screw 22. For instance, the inner diameter of the anti-loosening hole 31 is more than 0.6 mm smaller than the head diameter of the wire-locking screw 22, preventing the head of the wire-locking screw 22 from directly passing through the anti-loosening hole 31. During normal use, even under the action of external forces such as vibration and impact, the wire-locking screw 22 will not come out of the threaded hole 212 due to accidental collision, providing reliable mechanical protection for the electrical connection of the connector 10 and effectively avoiding electrical failures caused by the wire-locking screw 22 falling off.

[0075] In other embodiments, the anti-detachment structure 3 can be an elastic buckle, which is located in the mounting channel 11 of the insulating housing 1 near the threaded hole 212, as not shown in the accompanying drawings. When the locking screw 22 is screwed into the threaded hole 212, the terminal body 21 is installed into the mounting channel 11. After the terminal body 21 is installed in place, the elastic buckle can lock a specific part of the head end of the locking screw 22 (such as the edge of the wrench groove 221 or the side of the head end), thereby preventing the locking screw 22 from rotating out in the opposite direction.

[0076] To ensure that the terminal body 21 is securely installed within the mounting channel 11 of the insulating housing 1, please refer to... Figures 4-6In this embodiment, a first snap-fit ​​portion 213 is provided on the terminal body 21, and a second snap-fit ​​portion 12 is provided on the inner wall of the mounting channel 11. The first snap-fit ​​portion 213 and the second snap-fit ​​portion 12 are snap-fitted together. When the first snap-fit ​​portion 213 and the second snap-fit ​​portion 12 are snapped together, a strong mechanical interlocking force is generated between them to firmly fix the terminal body 21 in the mounting channel 11. This connection method can effectively prevent the terminal body 21 from loosening or shifting when subjected to vibration, impact, or external pulling force, and from falling off the insulating shell 1, ensuring the stability of the electrical connection. At the same time, the snap-fit ​​connection does not require complicated tools and cumbersome operating steps. Simply align the terminal body 21 with the mounting channel 11, align the first snap-fit ​​portion 213 with the second snap-fit ​​portion 12, and then gently press or push it in to complete the installation, shortening the installation time and improving construction efficiency.

[0077] Based on the above embodiments, a boss 13 is provided on the inner wall of the mounting channel 11. The boss 13 has a first surface 131 and a second surface 132 that are opposite to each other in the extending direction of the mounting channel 11. The second engaging portion 12 is provided on the first surface 131, and a limiting step surface 214 is formed on the outer periphery of the terminal body 21. When the limiting step surface 214 abuts against the second surface 132, the first engaging portion 213 and the second engaging portion 12 are engaged. When the limiting step surface 214 of the terminal body 21 abuts against the second surface 132, it means that the terminal body 21 has reached the preset correct installation depth and cannot continue to penetrate deeper into the mounting channel 11. This fundamentally avoids the problem of misalignment, failure to engage properly, or failure of the first engaging portion 213 and the second engaging portion 12 due to excessive insertion or excessive compression deformation, thereby improving the reliability of the engagement between the terminal body 21 and the insulating shell 1. It is understood that the first surface 131 and the second surface 132 of the aforementioned boss 13 are two surfaces of the boss 13 that are opposite to each other in the through direction of the mounting channel 11.

[0078] The first engaging portion 213 consists of barbs on the outer periphery of the terminal body 21, and the second engaging portion 12 consists of elastic claws on the first surface 131. When the terminal body 21 is initially inserted into the mounting cavity, the barbs on the outer periphery of the terminal body 21 apply pressure to the elastic claws, causing the elastic claws to shift away from the barbs, thus allowing the terminal body 21 to pass smoothly. As the terminal body 21 continues to be inserted, the elastic claws are no longer compressed by the barbs and return to their original position under their own elastic restoring force. The restored elastic claws then engage with the barbs on the outer periphery of the terminal body 21, thereby achieving a snap-fit ​​and fixation between the terminal body 21 and the mounting cavity.

[0079] In other embodiments, the first engaging portion 213 is a slot disposed on the outer periphery of the terminal body 21, and the second engaging portion 12 is an elastic claw disposed on the first surface 131, the shape and size of the slot matching the elastic claw. When the terminal body 21 is inserted into the mounting cavity, the elastic claw expands outward due to the pressure of the outer wall surface of the terminal body 21. When the terminal body 21 is inserted into the appropriate position, the elastic claw returns to its original shape and engages in the corresponding slot.

[0080] Please combine Figure 2 and Figure 7 In this embodiment, the insulating housing 1 has a first end face 14 and a second end face 15 disposed opposite to each other. The mounting channel 11 passes through the first end face 14 and the second end face 15. A first locking mark 141 is provided on the first end face 14, and the first locking mark 141 is located near the port of the mounting channel 11. When the cable 100 is locked into the wiring hole 211, the first locking mark 141 is flush with the surface where the tail end 222 of the wire-locking screw 22 is located. The proximity of the first locking mark 141 to the port of the mounting channel 11 allows the operator to quickly and intuitively determine whether the wire-locking screw 22 has reached the target locking force by simply observing the positional relationship between the bottom of the wire-locking screw 22 and the first locking mark 141 when connecting the cable 100 and tightening the wire-locking screw 22, without the need for additional tools or complex measurement methods. This simplifies the operation process of the wire-locking screw 22 and improves the efficiency of wiring operations.

[0081] Specifically, after connecting the cable 100, the locking screw 22 is pre-tightened to form a module with the terminal block 2. This module is then inserted into the mounting channel 11 from the first end face 14 to the second end face 15. The operator can retighten the locking screw 22 through the anti-loosening hole 31 until the locking end face of the locking screw 22 is flush with the corresponding first locking mark 141. This indicates that the locking screw 22 has reached the target tightening force, ensuring the stability and reliability of the electrical connection of the cable 100. The first locking mark 141 provides a clear reference standard for the operator, reducing the risk of under-tightening or over-tightening due to subjective judgment errors or lack of experience.

[0082] Since different diameter cables 100 require different locking forces when tightened, the corresponding first locking mark 141 allows the operator to quickly and accurately locate the corresponding first locking mark 141 as a reference based on the diameter of the cable 100 being connected. Therefore, this application provides at least two first locking marks 141 on the first end face 14, each first locking mark 141 corresponding to a cable 100 of a different diameter.

[0083] The first locking mark 141 has at least two. For example... Figure 2 , Figure 7 and Figure 8 As shown, a positioning part 215 is provided on the outer periphery of the terminal body 21, and an adapter part 111 is provided on the inner wall of the mounting channel 11. When the positioning part 215 and the adapter part 111 are engaged, the through direction of the threaded hole 212 is parallel to the arrangement direction of at least two first locking marks 141. For example, one of the first locking marks 141 corresponds to a 2.5 square millimeter cable 100, and the other first locking mark 141 corresponds to a 4 square millimeter cable 100. Thus, the engagement of the positioning part 215 and the adapter part 111 can accurately guide the terminal body 21 into the mounting channel 11, ensuring that the terminal body 21 is accurately positioned. In this way, the through direction of the threaded hole 212 is naturally parallel to the arrangement direction of the first locking marks 141. The operator does not need to make additional adjustments or calibrations and can directly tighten the locking screw 22 according to the first locking marks 141, thereby improving installation efficiency and reducing operational errors during installation.

[0084] For example, the positioning part 215 is a positioning plane formed on the outer periphery of the terminal body 21, and the adapter part 111 is an adapter plane on the inner wall of the mounting channel 11. That is, the terminal body 21 is a non-rotating structure, and the mounting channel 11 and the terminal body 21 are designed to mimic each other, thereby restricting relative rotation between the two. Alternatively, the positioning part 215 is a positioning post formed on the outer periphery of the terminal body 21, and the adapter part 111 is an adapter groove on the inner wall of the mounting channel 11. Both the positioning post and the adapter groove extend along the extension direction of the mounting channel 11, and the positioning connection between the two is achieved through the cooperation of the positioning post and the adapter groove.

[0085] Please refer to Figure 9 The connector 10 also includes a first sealing ring 4, which is sleeved on the outer periphery of the insulating housing 1. The first sealing ring 4 is used to seal the connection between the connector 10 and the mating connector 20. The first sealing ring 4 can effectively prevent external conductive substances (such as water, dust, etc.) from entering the interior of the connector 10, providing a stable sealing effect for the connector 10 and ensuring the stable operation of the connector 10 and the connected electrical equipment.

[0086] The connector 10 also includes a waterproof housing 5 and a second sealing ring 6. The waterproof housing 5 is fitted around the outer periphery of the insulating housing 1 and is detachably connected to the insulating housing 1. The second sealing ring 6 is disposed between the insulating housing 1 and the waterproof housing 5, and is used to seal the connection between the insulating housing 1 and the waterproof housing 5. In this manner, the waterproof housing 5 serves as an additional protective layer for the insulating housing 1. Although the insulating housing 1 has a certain level of protection, its protective effect may gradually weaken under prolonged and intense exposure to moisture and dust. The design of the waterproof housing 5 further enhances the overall waterproof and dustproof performance. By adding the waterproof housing 5, the protection level of the connector 10 can be raised to a higher standard, ensuring that the connector 10 can still function normally in harsh environments and reducing the risk of electrical failures caused by moisture and dust ingress.

[0087] The second sealing ring 6 not only serves a sealing function but also enhances the connection stability between the insulating housing 1 and the waterproof housing 5 to a certain extent. It can fill the tiny gaps between them, preventing seal failure due to loosening or displacement, and ensuring that the connector 10 maintains good protective performance during long-term use.

[0088] Please continue to refer to Figure 9 The connector 10 also includes a wire clamping assembly 7 and a fastener 8. The wire clamping assembly 7 is installed at the end of the waterproof housing 5 facing away from the insulating housing 1. One end of the wire clamping assembly 7 extends into the waterproof housing 5, and the other end extends out of the waterproof housing 5. The fastener 8 is connected to the end of the waterproof housing 5 facing away from the insulating housing 1. The end of the wire clamping assembly 7 extending out of the waterproof housing 5 is compressed by the fastener 8 and retracts to clamp the cable 100. When the fastener 8 compresses the wire clamping assembly 7 and retracts it, it can firmly clamp the cable 100, ensuring a stable connection between the cable 100 and the waterproof housing 5. Simultaneously, the waterproof housing 5 and the insulating housing 1 are interlocked, and the terminal block 2 is fixedly disposed within the insulating housing 1. Therefore, the above arrangement ensures a stable connection between the cable 100 and the terminal block. The wire clamping assembly 7 is typically designed with a certain degree of elasticity or adjustability. The degree of compression by the fastener 8 can achieve clamping of cables 100 of different diameters, effectively preventing the cable 100 from accidentally falling off.

[0089] Based on the above embodiments, the wire clamping assembly 7 includes a sealing body 71 and clamping claws 72. The sealing body 71 is sleeved on the outer periphery of the cable 100, and the clamping claws 72 are installed at the end of the sealing body 71 that extends out of the waterproof housing 5. When one end of the fastener 8 is tightened onto the end of the waterproof housing 5, the clamping claws 72 are compressed by the inner wall of the fastener 8, pressing the sealing body 71 tightly against the outer wall of the cable. This tight physical contact ensures the stability of the electrical connection between the cable and the connector 10, avoids heat generation caused by poor contact, and thus ensures the efficient and safe operation of the electrical system.

[0090] In other embodiments of this application, another connector 10 is also provided. This connector differs from the connector 10 described in any of the above-described technical solutions in that the structure of the insulating housing 1 is different. In this embodiment, as... Figures 10-13 As shown, the insulating housing 1 includes an insulating main housing 16 and an end cap 17. The insulating main housing 16 has a first channel 161 and an opening 162 communicating with the first channel 161. The terminal 2 is disposed in the first channel 161 and exposed to the outside of the insulating main housing 16 through the opening 162. The end cap 17 has a second channel 171. An anti-detachment structure 3 is disposed on the end cap 17. The end cap 17 is fitted around the outer periphery of the insulating main housing 16 so that the first channel 161 and the second channel 171 communicate to form an installation channel 11, and the anti-detachment structure 3 is located on the side of the locking screw 22 facing away from the cable 100. In this manner, the anti-detachment structure 3 on the end cap 17 cooperates with the locking screw 22 to block the cable 100 from the side of the locking screw 22 facing away from the cable 100, further enhancing the anti-detachment capability of the locking screw 22. Even when subjected to external forces such as vibration and impact, the locking screw 22 is not easily dislodged from the threaded hole 212, ensuring the reliability of the connection between the terminal 2 and the cable 100.

[0091] The sleeve structure design of the end cap 17 and the insulating main housing 16 is relatively simple, allowing operators to easily put on or remove the end cap 17 during installation and disassembly. Meanwhile, the second channel 171 on the end cap 17 connects to the first channel 161 on the insulating main housing 16, facilitating the installation of the terminal block 2 and the connection of the cable 100, thus improving construction efficiency.

[0092] Specifically, the insulating main housing 16 includes a first part and a second part connected together. An end cap 17 is fitted around the outer periphery of the first part of the insulating main housing 16. A first channel 161 on the insulating main housing 16 simultaneously penetrates both the first and second parts. The first channel 161 has a generally U-shaped cross-section in the first part, and the inner wall of the first channel 161 within the first part is discontinuous in a cross-section perpendicular to its extension direction. The U-shaped opening of the first channel 161 forms an opening 162 to expose the terminal 2 to the outer shell of the insulating main housing 16. The first channel 161 has a generally annular cross-section in the second part, and the inner wall of the first channel 161 within the second part is continuous in a cross-section perpendicular to its extension direction.

[0093] Please continue to refer to Figure 10 and Figure 11The insulating main housing 16 is provided with a third snap-fit ​​portion 163, and the end cover 17 is provided with a fourth snap-fit ​​portion 172. The third snap-fit ​​portion 163 and the fourth snap-fit ​​portion 172 are snap-fitted together. This achieves a detachable connection between the insulating main housing 16 and the end cover 17. One of the insulating main housing 16 and the end cover 17 is provided with a buckle, and the other is provided with a snap hole. The buckle and the snap hole are snap-fitted together. The snap-fit ​​connection between the buckle and the snap hole does not require complicated tools or cumbersome operating procedures. The operator only needs to align the insulating main housing 16 and the end cover 17, smoothly insert the buckle into the snap hole, and then gently press or push to complete the connection. When it is necessary to maintain, repair, or replace parts of the connector 10, the snap-fit ​​connection between the buckle and the snap hole makes the disassembly process simple and convenient.

[0094] Alternatively, permanent magnets can be installed at the connection points of the insulating main housing 16 and the end cap 17, respectively, and the magnetic force between the permanent magnets can be used to achieve an adsorption connection between the two. During the connection process, simply bringing the end cap 17 close to the insulating main housing 16 will cause the two to automatically attract each other.

[0095] Please refer to Figure 11 and Figure 14 A second locking mark 173 is provided on the end face of the end cap 17 facing away from the insulating main housing 16, and the second locking mark 173 is located near the port of the second channel 171. When the cable 100 is locked in the wiring hole 211, the second locking mark 173 is flush with the surface where the tail end 222 of the wire locking screw 22 is located. The second locking mark 173 is located near the port of the second channel 171. When tightening the wire locking screw 22, the operator does not need to use additional tools or complex measurement methods. He only needs to observe the positional relationship between the second locking mark 173 and the locking end face of the wire locking screw 22 to quickly and intuitively determine whether the wire locking screw 22 has reached the target locking force.

[0096] Optionally, the second locking mark 173 in any of the above embodiments can be a numerical scale, similar to a ruler. When a predetermined locking scale value is reached, it indicates that the wire-locking screw 22 has been locked in place. For example, the number represents the cross-sectional area of ​​the corresponding cable 100. Alternatively, the second locking mark 173 can be a scale line. For example, simple lines are drawn on the end face of the end cap 17 to form a scale line. When the wire-locking screw 22 reaches the target locking force, its locking end face is flush with the corresponding scale line. The scale line can be raised or recessed. Alternatively, the second locking mark 173 can be raised. For example, one or more raised dots, blocks, etc. are provided on the end face of the end cap 17 as the first locking mark 141. These raised parts can be circular, square, or other shapes, and when the wire-locking screw 22 reaches the target locking force, its locking end face is flush with the raised part. Similarly, the first locking mark 141 can also adopt the same design as the second locking mark 173. For example, the first locking mark 141 can be any of a number scale, scale line, or raised mark.

[0097] It should be noted that, for the embodiment of the insulating housing 1 including the insulating main housing 16 and the end cap 17, the anti-detachment structure 3 on the end cap 17 and the anti-detachment structure 3 on the insulating housing 1 in the aforementioned embodiment can adopt the same technical features to achieve the same technical effect, and this application will not repeat it here.

[0098] And, such as Figure 10 and Figure 15 As shown, a first sealing ring 4 and a second sealing ring 6 are also fitted around the outer periphery of the insulating main housing 16. Specifically, the first sealing ring 4 is used to seal the connection between the insulating main housing 16 and the mating connector. The second sealing ring 6 is used to seal the connection between the insulating main housing 16 and the waterproof outer shell 5. It can achieve the same technical effect as the first sealing ring 4, the second sealing ring 6 and the waterproof outer shell 5 on the insulating housing 1 in the previous embodiment, and will not be described again in this application. Among them, the outer periphery of the insulating housing 1 or the insulating main housing 16 is provided with an annular groove for accommodating the corresponding sealing ring (first sealing ring 4 or second sealing ring 6).

[0099] In addition, please continue to refer to Figure 15 In this embodiment, the wire clamping assembly 7 is installed at the end of the waterproof housing 5 opposite to the insulating housing 1. One end of the wire clamping assembly 7 extends into the waterproof housing 5, and the other end extends out of the waterproof housing 5. A fastener 8 is connected to the end of the waterproof housing 5 opposite to the insulating housing 1. The end of the wire clamping assembly 7 extending out of the waterproof housing 5 is compressed by the fastener 8 and retracts, used to clamp the cable 100 (see reference numerals)... Figure 10 Clamp it tight.

[0100] Secondly, this application also provides a connector assembly, such as... Figure 9As shown, the connector assembly includes the connector 10 described in any of the above technical solutions and a mating connector 20, with the mating connector 20 and connector 10 being connected by mating. Since the connector 10 in this connector assembly has the same structure as the connector 10 described above, both can solve the same technical problem and achieve the same technical effect.

[0101] Thirdly, this application also provides a micro inverter system, please refer to... Figure 16 The microinverter system includes a distribution box 30, a microinverter 40, and a connector assembly as described in any of the above technical solutions. The microinverter 40 is connected to the distribution box 30 via a corresponding connector assembly. Since the connector 10 in the connector assembly of this microinverter system has the same structure as the aforementioned connector 10, both can solve the same technical problem and achieve the same technical effect. For example, when there are multiple microinverters 40, there are also multiple connector assemblies, and each microinverter 40 is connected to the distribution box 30 via a corresponding connector assembly.

[0102] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0103] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims. Furthermore, specific examples have been used in the specification to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application, and the content of this specification should not be construed as a limitation of this application.

Claims

1. A connector, characterized in that, include: Insulating housing with mounting channels; The terminal block includes a terminal body and a locking screw disposed in the mounting channel. The terminal body has a connected wiring hole and a threaded hole. The extension direction of the wiring hole and the extension direction of the threaded hole intersect. The wiring hole is used to accommodate a cable. The locking screw is threadedly engaged with the threaded hole and is used to lock the cable in the wiring hole. An anti-detachment structure is provided on the insulating housing and located on the side of the locking screw facing away from the cable. The anti-detachment structure is used to prevent the locking screw from coming out of the threaded hole.

2. The connector according to claim 1, characterized in that, The insulating housing covers at least a portion of the locking screw, and the portion of the insulating housing covering the locking screw constitutes the anti-loosening structure.

3. The connector according to claim 2, characterized in that, The anti-detachment structure is an anti-detachment hole formed on the insulating shell. The anti-detachment hole is connected to the mounting channel, and the locking screw is exposed to the outside of the insulating shell through the anti-detachment hole.

4. The connector according to claim 1, characterized in that, The terminal body is provided with a first snap-fit ​​part, and the inner wall of the mounting channel is provided with a second snap-fit ​​part, and the first snap-fit ​​part and the second snap-fit ​​part are snap-fit ​​connected.

5. The connector according to claim 4, characterized in that, A boss is provided on the inner wall of the mounting channel. The boss has a first surface and a second surface that are opposite to each other in the extending direction of the mounting channel. The second snap-fit ​​part is provided on the first surface. A limiting step surface is formed on the outer periphery of the terminal body. When the limiting step surface abuts against the second surface, the first locking part and the second locking part are locked together.

6. The connector according to claim 1, characterized in that, The insulating housing has a first end face and a second end face that are opposite to each other. The mounting channel passes through the first end face and the second end face. A first locking mark is provided on the first end face, and the first locking mark is located near the port of the mounting channel. When the cable is locked into the wiring hole, the first locking mark is flush with the surface where the tail end of the locking screw is located.

7. The connector according to claim 1, characterized in that, The connector also includes: A first sealing ring is fitted around the outer periphery of the insulating housing, and the first sealing ring is used to seal the connection between the connector and the mating connector.

8. The connector according to claim 1, characterized in that, The connector also includes: A waterproof outer shell is fitted around the outer periphery of the insulating shell and is detachably connected to the insulating shell; A second sealing ring is disposed between the insulating housing and the waterproof outer shell, and the second sealing ring is used to seal the connection between the insulating housing and the waterproof outer shell.

9. The connector according to claim 8, characterized in that, The connector also includes: A wire clamping assembly is installed at one end of the waterproof housing opposite to the insulating housing, with one end of the wire clamping assembly extending into the waterproof housing and the other end extending out of the waterproof housing; Fasteners are connected to the end of the waterproof housing that faces away from the insulating housing; The end of the cable clamping assembly extending out of the waterproof housing is compressed by the fastener and retracts to clamp the cable.

10. The connector according to claim 1, characterized in that, The insulating housing includes an insulating main housing and an end cap. The insulating main housing has a first channel and an opening communicating with the first channel. The wiring terminal is disposed in the first channel and exposed to the outside of the insulating main housing through the opening. The end cap has a second channel. The anti-detachment structure is disposed on the end cap. The end cap is fitted around the outer periphery of the insulating main housing so that the first channel and the second channel communicate to form the installation channel.

11. The connector according to claim 10, characterized in that, The insulating main housing is provided with a third snap-fit ​​part, and the end cover is provided with a fourth snap-fit ​​part, and the third snap-fit ​​part and the fourth snap-fit ​​part are snap-fit ​​connected.

12. A connector assembly, characterized in that, include: The connector as described in any one of claims 1 to 11; as well as, A mating connector is used for mating with the connector.

13. A micro inverter system, characterized in that, include: Distribution box; Micro inverters, and, The connector assembly as claimed in claim 12; The micro inverter is connected to the distribution box via a corresponding connector assembly.

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