A limiting structure for a connector and a bus connector

Abstract

The utility model discloses a kind of limiting structure and busbar connector for connector, including the cylindrical limiting block body for being installed on connector, the two side walls of the limiting block body are set to the limiting surface for limiting the position of the limiting block body on connector;Branch line slot is opened on the limiting block body along length direction, branch line slot is opened on the side surface away from main line cable and / or the limiting surface;The utility model simple structure, reasonable in design, branch line cable is placed into branch line slot inside, then limiting block is slid into limiting slot, prevent branch cable from branch line slot in the process of connection, convenient construction, reduce failure rate, while the spacing between main line cable and branch line cable after busbar connection can be controlled, facilitate branch cable wiring neat.

Description

Technical Field

[0001] This utility model relates to the field of power system technology, specifically to a limiting structure for connectors and a bus connector. Background Technology

[0002] In photovoltaic power generation systems, the rectification and collection of DC-side cables are crucial for ensuring efficient power transmission. Since the current output from photovoltaic modules needs to pass through multiple collection stages before finally connecting to the inverter, this process often involves the transition from large-diameter cables to small-diameter cables, and multiple small-diameter cables may need to be connected to the same connection point simultaneously.

[0003] The shortcomings of existing technology:

[0004] Currently, during construction, when connecting multiple branch lines to the main line, the branch cables are prone to slipping out of the branch installation groove, affecting construction. For example, patent CN216698769U uses two C-type clips to clamp the cable, which is easy to assemble and can effectively prevent the conductor from being cut by the edge of the crimped joint. However, during construction, when connecting multiple branch lines to the main line, the branch cables are prone to coming out of the branch groove. When there are many branch lines, the branch lines are prone to getting messy, increasing the work of sorting out the branch cables and making construction inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide a limiting structure for connectors and a bus connector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a limiting structure for a connector, comprising a columnar limiting block body for mounting on a connector, wherein the two side walls of the limiting block body are configured as limiting surfaces for limiting the position of the limiting block body on the connector; a branch groove is provided on the limiting block body along the length direction, the branch groove being provided on a side surface away from the main cable and or on the limiting surface.

[0007] By adopting the above technical solution, when using it, it is necessary to cut a groove on the connector corresponding to the shape of the limiting block, then install the branch cable into the branch groove, and then slide the limiting block body into the connector. The limiting surface can prevent the branch cable from coming out of the connector during the connection process. At the same time, the branch groove on the limiting block body can position the branch cable, which is convenient for construction and can effectively improve construction efficiency.

[0008] Preferably, the limiting surface is set as an inclined surface, and the two limiting surfaces are close to each other at the end facing the main cable.

[0009] By adopting the above technical solution, the limiting block body can be prevented from falling out of the opening of the connector installation cable.

[0010] Preferably, the limiting surface is set as any one of an arc surface, a stepped surface, a toothed surface, and an irregular surface.

[0011] By adopting the above technical solution, it is possible to ensure that the limiting block body is inserted into the connector along the direction in which the branch cable passes, while preventing the limiting block body from falling out of the opening where the branch cable is installed in the connector.

[0012] Preferably, the wall thickness of the branch cable trough bottom is greater than the sum of the insulation layer thicknesses of the main cable and the branch cable.

[0013] By adopting the above technical solution, the spacing between the main cable and the branch cable can be effectively controlled by the spacing of the limiting block body, and the current will not be affected by the insulation layer during the convergence.

[0014] Preferably, the number of branch grooves is one or more.

[0015] By adopting the above technical solution, it is easy to install the appropriate number of cables according to the actual operational needs, so as to meet the convergence requirements of various scenarios.

[0016] This utility model also provides a bus connector, including a C-shaped clamp body and the aforementioned limiting structure. The inner sidewall of the clamp body is provided with a matching limiting groove corresponding to the limiting structure. The limiting structure is slidably inserted into the limiting groove. After being pressed by a mold, the clamp body and the limiting structure form an enclosing structure to fix the main cable.

[0017] By adopting the above technical solution, the limiting block body will not slip directly out of the connector, thereby restricting the position of the branch cable in the connector, facilitating connection with the main cable, and reducing construction difficulty.

[0018] Preferably, an arc-shaped groove is formed at the bottom of the limiting groove corresponding to the branch line groove, and the arc-shaped groove and the branch line groove are combined to form a complete circular groove.

[0019] By adopting the above technical solution, the contact area with the branch cable can be increased through the circular groove, effectively limiting the branch cable.

[0020] Preferably, the limiting groove and the limiting structure are provided in one or more sets corresponding to the installation positions of the branch cables.

[0021] By adopting the above technical solution, a corresponding number of limit block bodies can be installed as needed to install the corresponding branch cables.

[0022] Preferably, the two ends of the opening of the clamp body are provided with a mating structure for forming a closed loop after the clamp body is pressed together.

[0023] By adopting the above technical solution, it is ensured that the clamp body after crimping forms a closed-loop circular shape, thus guaranteeing the overall strength of the clamp body after crimping.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. The limiting structure for this connector has branch cable grooves opened along the length direction on the side wall of the limiting block body. The branch cable grooves are opened on any one or two of the surfaces a, c, and d, and the width of surface a is greater than the width of surface b. The limiting block body will not slide directly out of the connector, thereby restricting the position of the branch cable in the connector, which facilitates cable installation, makes it easy to connect the branch cable to the main cable, and reduces the difficulty of construction.

[0026] 2. In this connector limiting structure, the wall thickness of the branch cable groove bottom is greater than the sum of the insulation layer thicknesses of the main cable and the branch cable. By varying the wall thickness of the branch cable groove bottom, the spacing between the main cable and the branch cable can be effectively controlled, and the current will not be affected by the insulation layer during convergence.

[0027] 3. This type of bus connector uses a crimping die to crimp the clamp body, which is then crimped into an O-shape. The locking block and the locking slot cooperate to close the opening of the clamp body, increasing the clamp body's ability to enclose the cable and reducing the risk of opening. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the limiting structure for the connector of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the bus connector of this utility model;

[0030] Figure 3 This is a schematic diagram of the mold pressing process for the bus connector of this utility model;

[0031] Figure 4 This is a schematic diagram showing the branch grooves of this utility model located on both sides of the limiting block body;

[0032] Figure 5 The cross-sectional view of the limiting block body of this utility model is a convex-shaped schematic diagram;

[0033] Figure 6 The mating structure of this utility model is shown in a planar schematic diagram;

[0034] Figure 7 This is a schematic diagram of the tooth opening of this utility model.

[0035] In the diagram: 1. Limiting block body; 101. Limiting surface; 2. Branch groove; 3. Wire clamp body; 4. Limiting groove; 5. Arc groove; 6. Slot; 7. Locking block; 8. Teeth. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0038] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0039] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0040] Example

[0041] Please see Figure 1-7 As shown, this utility model provides a connector limiting structure, including a columnar limiting block body 1 for mounting on a connector. The two side walls of the limiting block body 1 are configured as limiting surfaces 101 for limiting the position of the limiting block body 1 on the connector. Branch grooves 2 are formed along the length of the limiting block body 1. The branch grooves 2 are located on the side facing away from the main cable and / or on the limiting surfaces 101. There can be one or more branch grooves 2, facilitating the installation of a corresponding number of cables according to actual operational needs, meeting the convergence requirements of various scenarios. The branch grooves 2 are located on the side of the limiting block body 1 away from the main cable. (Refer to...) Figure 4 In other embodiments, branch cable trays 2 are formed on both sides of the limiting block body 1 near the main cable. The side of the limiting block body 1 away from the connector contacts the main cable to achieve a passage between the main cable and the branch cable. The wall thickness of the bottom of the branch cable tray 2 is greater than the sum of the insulation layer thicknesses of the main cable and the branch cable. The branch cable is installed in the branch cable tray 2 to prevent the branch cable from coming out of the branch cable tray 2 during the connection process. At the same time, the spacing of the limiting block body 1 can effectively control the spacing between the main cable and the branch cable, and the current will not be affected by the insulation layer during the convergence. The limiting surface 101 is set as an inclined surface, and the two limiting surfaces 101 are close to each other at the end facing the main cable. The cross-sectional view of the limiting block body 1 is fan-shaped. The limiting block body 1 will not slide directly out of the connector, thereby restricting the position of the branch cable in the connector, facilitating the connection with the main cable, and reducing the construction difficulty.

[0042] Reference Figure 5 In other embodiments, the cross-sectional view of the limiting block body 1 is convex to prevent the limiting block body 1 from slipping directly out of the connector.

[0043] In other embodiments, the cross-sectional view of the limiting block body 1 is any irregular structure with a larger width on the side closer to the branch line and a smaller width on the side closer to the main cable, such as any one of the following: arc surface, step surface, toothed surface and irregular surface.

[0044] In use, a limiting groove 4 matching the limiting block body 1 is made at the location where the branch cable is installed in the connector. Then, the branch cable is inserted into the branch cable groove 2, and then slid into the limiting groove 4 of the connector together with the limiting block body 1. Since the limiting block body 1 is wedge-shaped, the limiting block body 1 will not slide directly towards the main cable position in the connector, thereby restricting the position of the branch cable in the connector. The main cable and the branch cable pass through the limiting block body 1, which facilitates the connection with the main cable and reduces the construction difficulty.

[0045] This utility model also provides a bus connector, including a C-shaped clamp body 3 and a limiting structure. A matching limiting groove 4 is provided on the inner wall of the clamp body 3 corresponding to the limiting structure. The limiting structure slides into the limiting groove 4. After being pressed together by a mold, the clamp body 3 forms an enclosing structure with the limiting structure to fix the main cable. The limiting block body 1 will not directly slide out of the connector, thus restricting the position of the branch cable within the connector, facilitating connection with the main cable, and reducing construction difficulty. An arc-shaped groove is provided at the bottom of the limiting groove 4 corresponding to the branch cable groove 2. The groove 5, the arc groove 5, and the branch line groove 2 are combined to form a complete circular groove, which can increase the contact area with the branch cable and effectively limit the branch cable; the limiting groove 4 and the limiting structure are provided with one or more sets corresponding to the installation position of the branch cable, and the corresponding number of limiting block bodies 1 can be installed as needed to install the corresponding branch cable; the two ends of the opening of the clamp body 3 are provided with a matching structure for forming a closed loop after the clamp body 3 is pressed, ensuring that the clamp body 3 after pressing is a closed circular shape, and ensuring the overall strength of the clamp body 3 after pressing.

[0046] In this embodiment, the mating structure includes a slot 6 and a block 7 formed at both ends of the opening of the clamp body 3, and the slot 6 and the block 7 are stepped structures that fit together.

[0047] In other embodiments, the slot 6 and the block 7 can also be a cooperating concave groove and convex block structure. When the clamp body 3 is pressed into a closed ring, the block 7 is engaged in the slot 6 to ensure that the opening of the clamp body 3 can be tightly closed.

[0048] Reference Figure 6 In other embodiments, the mating structure consists of two parallel planes after pressing, ensuring that the two ends of the opening of the clamp body 3 are tightly joined without gaps after pressing.

[0049] Reference Figure 7 In other embodiments, teeth 8 are provided at the contact positions of the clamp body 3 and the limiting block body 1 with the main cable and the branch cable. The teeth 8 increase the friction of the cable inside the clamp body 3, so that the clamp body 3 can grip the cable tightly and improve the connection stability.

[0050] In use, first insert the branch cable into the branch groove 2, and then insert it together with the limiting block body 1 into the limiting groove 4 of the connector. After all the branch cables are installed, insert the main cable into the inside of the clamp body 3 through the opening. The main cable and the branch cable are positioned and connected by the limiting block body 1. Then, the clamp body 3 is crimped by the crimping mold, and the clamp body 3 is crimped into an O-shape. The matching structure makes the opening of the clamp body 3 close, increasing the clamp body 3's wrapping performance for the cable and reducing the risk of opening. The limiting block body 1 has a wedge-shaped design, and the limiting block body 1 will not slip directly out of the connector, thus restricting the position of the branch cable in the connector, facilitating connection with the main cable, and reducing construction difficulty.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A limiting structure for a connector, characterized in that: Includes a columnar limiting block body (1) for mounting on a connector, the two side walls of the limiting block body (1) being configured as limiting surfaces (101) for limiting the position of the limiting block body (1) on the connector; a branch groove (2) is provided on the limiting block body (1) along the length direction, the branch groove (2) being provided on a side surface away from the main cable and or on the limiting surface (101).

2. The limiting structure for a connector according to claim 1, characterized in that, The limiting surface (101) is set as an inclined surface, and the two limiting surfaces (101) are close to each other at one end of the main cable.

3. The limiting structure for a connector according to claim 1, characterized in that, The limiting surface (101) is set to any one of the following: arc surface, step surface, toothed surface and irregular surface.

4. The limiting structure for a connector according to claim 1, characterized in that, The wall thickness of the bottom of the branch cable trough (2) is greater than the sum of the insulation thicknesses of the main cable and the branch cable.

5. A limiting structure for a connector according to claim 1, characterized in that, The number of branch grooves (2) is one or more.

6. A bus connector, characterized in that, The device includes a C-shaped clamp body (3) and a limiting structure as described in any one of claims 1-4. The inner sidewall of the clamp body (3) is provided with a matching limiting groove (4) corresponding to the limiting structure. The limiting structure is slidably inserted into the limiting groove (4). After being pressed by a mold, the clamp body (3) and the limiting structure form an enclosing structure to fix the main cable.

7. A bus connector according to claim 6, characterized in that, The bottom of the limiting groove (4) is provided with an arc-shaped groove (5) corresponding to the branch line groove (2), and the arc-shaped groove (5) and the branch line groove (2) are combined to form a complete circular groove.

8. A bus connector according to claim 6, characterized in that, The limiting groove (4) and the limiting structure are provided with one or more sets corresponding to the installation positions of the branch cables.

9. A bus connector according to claim 6, characterized in that, The wire clamp body (3) has a mating structure at both ends of the opening for forming a closed loop after the wire clamp body (3) is pressed together.

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