Branch connector

Abstract

The utility model belongs to the technical field of photovoltaic connectors, and particularly discloses a branch connector, which comprises a base, a terminal, a main cable and a plurality of branch cables. The base is provided with an accommodating cavity for filling colloid, and the bottom wall of the accommodating cavity is provided with a terminal positioning column; the terminal comprises a fixing plate and a cable connecting part connected with the fixing plate, the fixing plate is provided with a positioning hole, and the positioning hole is connected with the terminal positioning column; the cable core of the main cable is electrically connected with the cable cores of the plurality of branch cables, and the cable connecting part is wound and riveted at the joint of the main cable and the plurality of branch cables. According to the terminal of the branch connector, a plurality of cables are connected together through one cable connecting part, the overall size of the branch connector is reduced, the production cost is reduced, the tensile capacity is high, and the stability of cable connection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic connector technical field especially relates to a branch connector. BACKGROUND

[0002] In the photovoltaic industry, the branch connector has been an important role. From the initial "one out of two" structure, two components can be connected in parallel to a main line, and gradually developed to the current product can realize "one out of N", convenient connection.

[0003] In the traditional branch connector structure, the terminal is generally provided with the same number of branch connection parts as the branch cable to fix the branch cable, which makes the overall volume of the product larger, increases the volume of the glue and the material of the product, and to a certain extent, leads to higher production cost. Moreover, the cable and the terminal are generally connected by mechanical connection. When the cable is affected by external tension, the cable connection is easy to relax or disconnect, which leads to unstable or ineffective cable connection.

[0004] Therefore, it is urgent to provide a branch connector to solve the above technical problems. INVENTION CONTENTS

[0005] The utility model provides a kind of branch connector, and the terminal of the branch connector is connected together by one cable connection part, which reduces the overall volume of the branch connector, reduces production cost to a certain extent, and has strong tensile capacity, improves the stability of cable connection.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The branch connector comprises:

[0008] The base is provided with a containing cavity for filling glue, and the bottom wall of the containing cavity is provided with a terminal positioning column;

[0009] The terminal comprises a fixed plate and a cable connection part connected to the fixed plate, the fixed plate is provided with a positioning hole, and the positioning hole is connected to the terminal positioning column;

[0010] The main cable and the plurality of branch cables are electrically connected together, and the cable connection part is crimped at the junction of the main cable and the plurality of branch cables.

[0011] Optionally, the bottom wall of the containing cavity is further provided with a cable positioning column, the branch cable is provided one-to-one corresponding to the cable positioning column, one end of the branch cable connected to the main cable has a bending part matched with the cable positioning column, and the bending part is pressed against the cable positioning column when the branch cable is pulled.

[0012] Optionally, the terminal positioning column is inserted into the positioning hole; and / or the terminal positioning column is inserted into the positioning hole and riveted with the fixed plate.

[0013] Optionally, the core of the main cable and the core of the branch cable are fused by a welding process.

[0014] Optionally, the branch connector further comprises a wire pressing buckle, the wire pressing buckle is arranged at the opening of the accommodating cavity, two ends of the wire pressing buckle are respectively provided with a main wire pressing wall and a branch wire pressing wall, the main wire pressing wall is provided with a first main wire pressing groove, the branch wire pressing wall is provided with a first branch wire pressing groove corresponding to the branch cable, the base is provided with a second main wire pressing groove corresponding to the first main wire pressing groove and a second branch wire pressing groove corresponding to the first branch wire pressing groove, the first main wire pressing groove and the second main wire pressing groove form a closed main wire pressing hole for fixing the main cable, and the first branch wire pressing groove and the second branch wire pressing groove form a closed branch wire pressing hole for fixing the branch cable.

[0015] The inner circumferential wall of the main wire pressing hole is provided with two circular first limiting convex ribs at intervals, the first limiting convex ribs are in interference fit with the main cable, each of the first limiting convex ribs is provided with a plurality of first limiting protrusions in interference fit with the main cable, and the first limiting protrusions on the two first limiting convex ribs are arranged in a staggered manner.

[0016] And / or, the inner circumferential wall of the branch wire pressing hole is provided with two circular second limiting convex ribs at intervals, the second limiting convex ribs are in interference fit with the branch cable, each of the second limiting convex ribs is provided with a plurality of second limiting protrusions in interference fit with the branch cable, and the second limiting protrusions on the two second limiting convex ribs are arranged in a staggered manner.

[0017] Optionally, the branch connector further comprises a wire pressing buckle, the wire pressing buckle is arranged at the opening of the accommodating cavity, the main cable and the branch cable are clamped between the wire pressing buckle and the base; on the base, a fusion surface is arranged around the opening of the accommodating cavity, the fusion surface is provided with a fusion rib, the wire pressing buckle is provided with a fusion protrusion matched with the fusion surface, and the bottom surface of the fusion protrusion is fused to the fusion rib.

[0018] Optionally, on the base, a first inner step structure is arranged around the fusion surface, the wire pressing buckle forms a first outer step structure around the fusion rib, and the first outer step structure is in clearance fit with the first inner step structure.

[0019] Optionally, the branch connector further comprises a wire pressing buckle, the wire pressing buckle is arranged at the opening of the accommodating cavity, and the main cable and the branch cables are clamped between the wire pressing buckle and the base; a middle part of the wire pressing buckle is provided with a glue pouring opening, a box cover is arranged at the glue pouring opening, and a first protruding part is arranged on one side of the box cover facing the accommodating cavity.

[0020] Optionally, a second protruding part is arranged on a bottom wall of the accommodating cavity.

[0021] Optionally, an annular groove is arranged at an outer edge of the glue pouring opening on the wire pressing buckle, the annular groove and the glue pouring opening form a second inner stepped structure, a second outer stepped structure is arranged on the box cover, and the second outer stepped structure is in clearance fit with the second inner stepped structure.

[0022] Optionally, buckles are arranged on opposite two side walls of the glue pouring opening, opposite two ends of the box cover are provided with buckle grooves corresponding to the buckles, and the buckle grooves are in clamping connection with the corresponding buckles.

[0023] The branch connector has the following beneficial effects:

[0024] The utility model provides a kind of branch connector, including base, terminal, main cable and multiple branch cables.There is terminal positioning column connected with the fixed plate of terminal on base.When main cable or branch cable is subjected to tension, terminal positioning column will be against terminal to limit the movement of terminal, and then improve the anti-pulling function of main cable and branch cable to a certain extent.That is, by the cooperation of terminal positioning column and terminal, the tensile capacity of the branch connector is improved, so that the risk of connection slack or disconnection between main cable and branch cable is lower, and then the stability of cable connection is higher.

[0025] And, main cable and multiple branch cables are fixed together by cable connecting portion on terminal, compared with the scheme that one branch connecting portion is arranged on terminal corresponding to each branch cable in prior art, structure is simpler, installation is more convenient, overall structure is more compact, both reduce the overall size of the branch connector, and save production cost to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings by those skilled in the art without creating creative labor.

[0027] Figure 1The utility model provides a kind of overhead view after branch connector hidden pressure line buckle and box cover provided by the embodiment of the utility model;

[0028] Figure 2 The utility model provides another overhead view after branch connector hidden pressure line buckle and box cover provided by the embodiment of the utility model;

[0029] Figure 3 The structure schematic view of base provided by the embodiment of the utility model;

[0030] Figure 4 The assembly drawing of terminal, main cable and two branch cables provided by the embodiment of the utility model;

[0031] Figure 5 The structure schematic view of terminal provided by the embodiment of the utility model;

[0032] Figure 6 The schematic view of main cable and two branch cables not being assembled with terminal provided by the embodiment of the utility model;

[0033] Figure 7 The sectional view of branch connector provided by the embodiment of the utility model Figure 1 ;

[0034] Figure 8 For Figure 7 The enlarged view at A;

[0035] Figure 9 The exploded schematic view of branch connector provided by the embodiment of the utility model;

[0036] Figure 10 The structure schematic view of branch connector provided by the embodiment of the utility model;

[0037] Figure 11 The side view of branch connector hidden branch cable provided by the embodiment of the utility model;

[0038] Figure 12 For Figure 3 The enlarged view at B;

[0039] Figure 13 The schematic view of main cable (show bite mark) provided by the embodiment of the utility model;

[0040] Figure 14 For Figure 13 Sectional view at C-C;

[0041] Figure 15 For Figure 13 Sectional view at D-D;

[0042] Figure 16The top view of the branch connector (the box cover is not shown) provided by the embodiment of the utility model;

[0043] Figure 17 The cross section of the branch connector provided by the embodiment of the utility model Figure 2 ;

[0044] Figure 18 For Figure 17 The enlarged view at E;

[0045] Figure 19 For Figure 17 The enlarged view at F.

[0046] In the figure,

[0047] 100, base; 110, accommodating cavity; 111, fusion surface; 1111, fusion rib; 112, first inner step structure; 113, second protruding part; 120, terminal positioning column; 130, cable positioning column; 140, second main wire pressing groove; 150, second branch wire pressing groove;

[0048] 200, terminal; 210, fixed plate; 211, positioning hole; 220, cable connecting part;

[0049] 300, main cable;

[0050] 400, branch cable; 410, bending part;

[0051] 500, wire pressing buckle; 510, main wire pressing wall; 520, branch wire pressing wall; 530, fusion protrusion; 540, first outer step structure; 550, glue pouring opening; 560, annular groove; 570, second inner step structure; 580, buckle;

[0052] 600, main wire pressing hole; 610, first limiting protruding rib; 611, first limiting protrusion;

[0053] 700, branch wire pressing hole; 710, second limiting protruding rib; 711, second limiting protrusion;

[0054] 800, box cover; 810, first protruding part; 820, second outer step structure; 830, clamping groove. DETAILED DESCRIPTION

[0055] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0056] In the description of the utility model, unless another definite provision and limitation, the term "connect", "connect", "fix" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element interaction relationship.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0057] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0058] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0059] The embodiment provides a branch connector, the terminal of the branch connector is connected with multiple cables through a cable connecting part, the overall volume of the branch connector is reduced, the production cost is reduced to a certain extent, and the tensile strength is high, and the stability of cable connection is improved.

[0060] Specifically, as shown in Figure 1 、 Figures 4-6 The branch connector includes a base 100, a terminal 200, a main cable 300 and multiple branch cables 400.The base 100 is provided with a containing cavity 110 for filling glue, and the bottom wall of the containing cavity 110 is provided with a terminal positioning column 120.The terminal 200 includes a fixed plate 210 and a cable connecting part 220 connected with the fixed plate 210, and the fixed plate 210 is provided with a positioning hole 211 connected with the terminal positioning column 120.The core of the main cable 300 and the core of the multiple branch cables 400 are electrically connected together, and the cable connecting part 220 is rolled and riveted at the joint of the main cable 300 and the multiple branch cables 400.

[0061] The branch connector provided by the embodiment improves the tensile strength of the branch connector by matching the terminal positioning column 120 arranged on the base 100 with the positioning hole 211 on the terminal 200 of the fixed main cable 300 and branch cable 400, so that the risk of loose or disconnected connection between the main cable 300 and the branch cable 400 is low, and the stability of the cable connection is high. Moreover, the main cable 300 and the plurality of branch cables 400 are fixed together through the cable connecting part 220 on the terminal 200, compared with the scheme of arranging one branch connecting part on the terminal 200 corresponding to each branch cable 400 in the prior art, the structure is simpler, the installation is more convenient, and the overall structure is more compact, which not only reduces the overall size of the branch connector, but also saves the production cost to a certain extent.

[0062] Further, as shown in Figure 2 and Figure 3 , the bottom wall of the accommodating cavity 110 is further provided with a cable positioning column 130, and the branch cable 400 is arranged one by one corresponding to the cable positioning column 130. The end of the branch cable 400 connected with the main cable 300 has a bending part 410 matched with the cable positioning column 130, and the bending part 410 abuts against the cable positioning column 130 when the branch cable 400 is pulled.

[0063] For example, as shown in Figure 2 , when the main cable 300 is subjected to a right pulling force, the terminal positioning column 120 will abut against the terminal 200 to limit the movement of the terminal 200, thereby improving the anti-pulling function of the main cable 300 to a certain extent. When the branch cable 400 is subjected to a left pulling force, the cable positioning column 130 will abut against the branch cable 400 to limit the movement of the branch cable 400, thereby improving the anti-pulling function of the branch cable 400 to a certain extent.

[0064] Optionally, in one possible embodiment, the branch cable 400 is provided with two, and the cable positioning column 130 is provided with two. In another possible embodiment, the branch cable 400 is provided with three or four, and the cable positioning column 130 is provided with three or four correspondingly.

[0065] Optionally, the wire cores of the main cable 300 and the plurality of branch cables 400 are fused into one body through a welding process.

[0066] Specifically, first, the main cable 300 and the branch cable 400 are placed in the state shown in Figure 6 , and then the main cable 300 and the branch cable 400 are welded together through the welding process. Figure 5The cable connecting portion 220 is shown in the state, and then the cable connecting portion 220 is wound to fasten the cores of the main cable 300 and the branch cable 400 together, at this time, the cores of the main cable 300 and the branch cable 400 are in close contact. Then the cores of the main cable 300 and the branch cable 400 can be integrated and solidified by a soldering process, so that reliable electrical connection between the main cable 300 and the branch cable 400 can be achieved.

[0067] The electrical connection between the main cable 300 and the branch cable 400 is achieved by riveting and welding, which greatly improves the reliability of the electrical connection between the main cable 300 and the branch cable 400 compared with the scheme of achieving the electrical connection between the main cable 300 and the branch cable 400 by riveting only or welding only.

[0068] Further, as shown in Figure 7 and Figure 8 In one possible embodiment, the terminal positioning column 120 is inserted into the positioning hole 211 and riveted with the fixed plate 210. Specifically, the terminal positioning column 120 can be inserted into the positioning hole 211 first, and then the terminal 200 is fixed between the positioning column and the base 100 by using a cold riveting process. In this way, the installation strength of the terminal 200 is improved.

[0069] Alternatively, in another possible embodiment, only the terminal positioning column 120 can be inserted into the positioning hole 211, and in this way, the terminal 200 can also be fixed, and the installation is simpler.

[0070] Alternatively, the material of the terminal 200 can be steel, which has higher strength and lower cost compared with the conventional terminal 200 made of copper.

[0071] Further, as shown in Figures 9-15 In one possible embodiment, the branch connector further includes a wire pressing buckle 500, the wire pressing buckle 500 is arranged at the opening of the accommodating cavity 110, and the wire pressing buckle 500 and the base 100 jointly act to clamp and fix the main cable 300 and the branch cable 400.

[0072] Specifically, the wire pressing buckle 500 is provided with a main wire pressing wall 510 and a branch wire pressing wall 520 at two ends respectively, the main wire pressing wall 510 is provided with a first main wire pressing groove, the branch wire pressing wall 520 is provided with a first branch wire pressing groove corresponding to the branch cable 400 one by one, the base 100 is provided with a second main wire pressing groove 140 corresponding to the first main wire pressing groove, and a second branch wire pressing groove 150 corresponding to the first branch wire pressing groove one by one, and the first main wire pressing groove and the second main wire pressing groove 140 form a closed main wire pressing hole 600 (as shown in Figure 10The first and second voltage division wire grooves 150 enclose a closed voltage division wire hole 700 (as shown in FIG. 1) for fixing the branch cable 400. Figure 11

[0073] Further, two first limiting convex ribs 610 in a circular shape are arranged on the inner circumferential wall of the main voltage wire hole 600 at intervals, the first limiting convex ribs 610 are in interference fit with the main cable 300, a plurality of first limiting convex protrusions 611 are arranged on each of the first limiting convex ribs 610, the first limiting convex protrusions 611 are in interference fit with the main cable 300, and the plurality of first limiting convex protrusions 611 on the two first limiting convex ribs 610 are arranged in a staggered manner. Figure 15 As shown in FIG. 1, after the first limiting convex rib 610 and the first limiting convex protrusion 611 on the first limiting convex rib 610 are in interference fit with the main cable 300, annular indentations with a depth of L1 and punctiform indentations with a depth of L2 are formed on the main cable 300, which further improves the sealing performance between the main voltage wire hole 600 and the main cable 300. The staggered arrangement of the first limiting convex protrusions 611 on the two first limiting convex ribs 610 can avoid the concentration of indentations at a deeper position on the main cable 300, thereby reducing the risk of damage and rupture of the insulation layer of the main cable 300 at the indentation position.

[0074] Optionally, in the embodiment, two second limiting convex ribs 710 in a circular shape are arranged on the inner circumferential wall of the voltage division wire hole 700 at intervals, the second limiting convex ribs 710 are in interference fit with the branch cable 400, a plurality of second limiting convex protrusions 711 are arranged on each of the second limiting convex ribs 710, the second limiting convex protrusions 711 are in interference fit with the branch cable 400, and the plurality of second limiting convex protrusions 711 on the two second limiting convex ribs 710 are arranged in a staggered manner. The second limiting convex ribs 710 and the second limiting convex protrusions 711 can elastically seal branch cables 400 with different diameters within a certain range, and have high adaptability. Further, after the second limiting convex rib 710 and the second limiting convex protrusion 711 on the second limiting convex rib 710 are in interference fit with the branch cable 400, annular indentations and punctiform indentations with different depths are formed on the branch cable 400, which further improves the sealing performance between the voltage division wire hole 700 and the branch cable 400. The staggered arrangement of the second limiting convex protrusions 711 on the two second limiting convex ribs 710 can avoid the concentration of indentations at a deeper position on the branch cable 400, thereby reducing the risk of damage and rupture of the insulation layer of the branch cable 400 at the indentation position.

[0075] ​Optionally, the first limiting protrusion 611 can be a trapezoidal tooth structure, so that the point-like bite marks on the main cable 300 have the characteristics of middle deep and both sides shallow, the range of the line diameter of the main cable 300 that can be adapted to a certain extent is larger, more sizes of the main cable 300 can be elastically sealed, and the universality is higher.

[0076] Optionally, the second limiting protrusion 711 can also be a trapezoidal tooth structure, so that the point-like bite marks on the branch cable 400 have the characteristics of middle deep and both sides shallow, the range of the line diameter of the branch cable 400 that can be adapted to a certain extent is larger, more sizes of the branch cable 400 can be elastically sealed, and the universality is higher.

[0077] Optionally, as shown in Figure 9 , Figure 10 , Figures 16-18 in another possible embodiment, the branch connector further comprises a wire pressing buckle 500, the wire pressing buckle 500 is arranged at the opening of the accommodating cavity 110, and the main cable 300 and the branch cable 400 are clamped between the wire pressing buckle 500 and the base 100. Through the cooperation of the wire pressing buckle 500 and the base 100, the anti-pulling performance of the main cable 300 and the branch cable 400 can be improved.

[0078] Specifically, on the base 100, a fusion surface 111 is arranged around the opening of the accommodating cavity 110, the fusion surface 111 is provided with a fusion rib 1111, and the wire pressing buckle 500 is provided with a fusion protrusion 530 matched with the fusion surface 111, and the bottom surface of the fusion protrusion 530 is fused to the fusion rib 1111. The connection between the wire pressing buckle 500 and the base 100 is realized by fusion, on the one hand, the connection strength is high, and the structural stability of the branch connector is improved; on the other hand, the sealing performance is better.

[0079] Further, referring to Figure 18 , on the base 100, a first inner step structure 112 is arranged around the fusion surface 111, and the wire pressing buckle 500 forms a first outer step structure 540 around the fusion rib 1111, and the first outer step structure 540 is gap matched with the first inner step structure 112. If a gap appears between the fusion protrusion 530 and the fusion rib 1111 due to incomplete fusion, the colloid in the accommodating cavity 110 of the base 100 needs to flow along the gap between the first outer step structure 540 and the first inner step structure 112 (as shown by the arrow in the middle), which makes the overflow path of the colloid more complex, and it is difficult for the colloid to overflow to the outside of the product by its own tension, reducing the risk of colloid overflow. Figure 18

[0080] Further, as shown in Figure 9 , Figure 16 and Figure 17 ​As shown, in other possible embodiments, the branch connector further comprises a wire pressing buckle 500, which is arranged at the opening of the accommodating cavity 110, and the main cable 300 and the branch cable 400 are clamped between the wire pressing buckle 500 and the base 100. Through the cooperation of the wire pressing buckle 500 and the base 100, the anti-pulling performance of the main cable 300 and the branch cable 400 can be improved.

[0081] Specifically, the middle part of the wire pressing buckle 500 is provided with a glue pouring port 550, and a box cover 800 is arranged at the glue pouring port 550. The side of the box cover 800 facing the accommodating cavity 110 is provided with a first protruding part 810. Through the arrangement of the first protruding part 810, in the process of closing the box cover 800, the first protruding part 810 first contacts the glue in the accommodating cavity 110, and the glue is squeezed to both sides in the closing process, so that the air in the accommodating cavity 110 is discharged, the glue surface rises, and the full glue in the accommodating cavity 110 is realized, thereby improving the glue filling yield. Moreover, the arrangement of the first protruding part 810 increases the contact area between the box cover 800 and the glue, and improves the heat dissipation performance of the branch connector.

[0082] Optionally, in a possible embodiment, the material of the box cover 800 can be metal, and the first protruding part 810 of the box cover 800 can be formed on the box cover 800 by stamping, which is simple in process and convenient to process. In another possible embodiment, the material of the box cover 800 can also be plastic, and the box cover 800 can be formed by injection molding. In other embodiments, the processing mode of the box cover 800 can also be other, which can be selected according to actual needs, and the present application does not make specific limitation.

[0083] Further, as shown in Figure 3 and Figure 17 , a second protruding part 113 can also be arranged on the bottom wall of the accommodating cavity 110. Through the arrangement of the second protruding part 113, the contact area between the base 100 and the glue is increased, and the heat dissipation performance of the branch connector is further improved. Moreover, the volume of the accommodating cavity 110 is reduced, and the glue filling amount of the branch connector is further reduced, thereby reducing the material cost.

[0084] Optionally, the base 100 can be processed and formed by injection molding. The process is simple and convenient to process.

[0085] Further, as shown in Figure 9 , Figure 16 and Figure 19As shown, an annular groove 560 is provided on the outer edge of the glue inlet 550 on the snap fastener 500. The annular groove 560 and the glue inlet 550 form a second inner step structure 570. A second outer step structure 820 is provided on the lid 800, and the second outer step structure 820 and the second inner step structure 570 are fitted together with a clearance. With this arrangement, during the process of closing the lid 800, the glue in the receiving cavity 110 needs to flow along the fitting gap between the second outer step structure 820 and the second inner step structure 570. Figure 19 (As indicated by the middle arrow), this makes the overflow path of the adhesive more complex, making it difficult for the adhesive to overflow to the outside of the product due to its own tension. This reduces the risk of adhesive overflow and solves the problem of adhesive overflow during transportation after product filling or due to tilting of the product before the adhesive has cured, thereby improving production yield. Furthermore, the adhesive overflowing into the second outer step structure 820 and the second inner step structure 570 can also play an adhesive role between the cover 800 and the wire clamp 500, which helps to improve the connection strength between the cover 800 and the wire clamp 500, thereby improving the structural stability of the branch connector.

[0086] Furthermore, such as Figure 9 and Figure 16 As shown, the glue inlet 550 has clips 580 on both opposite side walls, and the cover 800 has corresponding slots 830 at opposite ends, which engage with the corresponding clips 580. The cover 800 and the wire clamp 500 are connected by this snap-fit ​​mechanism, resulting in a simple structure that is easy to install.

[0087] Optionally, multiple slots 830 can be provided, and each slot 830 is provided with a corresponding buckle 580 to improve the connection strength between the cover 800 and the wire clamp 500.

[0088] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A branch connector, characterized in that, include: A base (100) is provided with a receiving cavity (110) for filling colloid, and a terminal positioning post (120) is provided on the bottom wall of the receiving cavity (110); The terminal (200) includes a fixing plate (210) and a cable connection part (220) connected to the fixing plate (210). The fixing plate (210) is provided with a positioning hole (211), and the positioning hole (211) is connected to the terminal positioning post (120). A main cable (300) and multiple branch cables (400) are provided, wherein the core of the main cable (300) and the core of the multiple branch cables (400) are electrically connected together, and the cable connection part (220) is wound and riveted to the junction of the main cable (300) and the branch cables (400).

2. The branch connector according to claim 1, characterized in that, The bottom wall of the receiving cavity (110) is also provided with a cable positioning post (130). The branch cable (400) is provided in a one-to-one correspondence with the cable positioning post (130). The core of the branch cable (400) connected to the main cable (300) has a bending part (410) that cooperates with the cable positioning post (130). When the branch cable (400) is stretched, the bending part (410) presses against the cable positioning post (130).

3. The branch connector according to claim 1, characterized in that, The terminal positioning post (120) is inserted into the positioning hole (211); and / or, the terminal positioning post (120) is inserted into the positioning hole (211) and riveted to the fixing plate (210).

4. The branch connector according to claim 1, characterized in that, The cores of the main cable (300) and the multiple branch cables (400) are fused together by a welding process.

5. The branch connector according to any one of claims 1-4, characterized in that, The branch connector further includes a wire clamp (500), which covers the opening of the receiving cavity (110). The wire clamp (500) has a main wire clamp wall (510) and a branch wire clamp wall (520) at its two ends. The main wire clamp wall (510) has a first main wire clamp groove, and the branch wire clamp wall (520) has a first branch wire clamp groove corresponding to each branch cable (400). The base (100) has a corresponding... The first main pressure groove has a corresponding second main pressure groove (140) and a second sub-pressure groove (150) that corresponds one-to-one with the first sub-pressure groove. The first main pressure groove and the second main pressure groove (140) form a closed main pressure hole (600) for fixing the main cable (300). The first sub-pressure groove and the second sub-pressure groove (150) form a closed sub-pressure hole (700) for fixing the branch cable (400). Two circular first limiting ribs (610) are spaced apart on the inner peripheral wall of the main pressure hole (600). The first limiting ribs (610) are interference-fitted with the main cable (300). Each first limiting rib (610) is provided with multiple first limiting protrusions (611). The first limiting protrusions (611) are interference-fitted with the main cable (300), and the multiple first limiting protrusions (611) on the two first limiting ribs (610) are staggered. And / or, two circular second limiting ribs (710) are provided at intervals on the inner peripheral wall of the pressure dividing line hole (700). The second limiting ribs (710) are interference-fitted with the branch cable (400). Each second limiting rib (710) is provided with multiple second limiting protrusions (711). The second limiting protrusions (711) are interference-fitted with the branch cable (400), and the multiple second limiting protrusions (711) on the two second limiting ribs (710) are staggered.

6. The branch connector according to any one of claims 1-4, characterized in that, The branch connector also includes a wire clamp (500), which covers the opening of the receiving cavity (110). The main cable (300) and the branch cable (400) are clamped between the wire clamp (500) and the base (100). On the base (100), a welding surface (111) is provided around the outer edge of the opening of the receiving cavity (110). The welding surface (111) is provided with welding ribs (1111). The wire clamp (500) is provided with welding protrusions (530) that cooperate with the welding surface (111). The bottom surface of the welding protrusions (530) is welded to the welding ribs (1111).

7. The branch connector according to claim 6, characterized in that, On the base (100), a first inner step structure (112) is provided around the outer periphery of the welding surface (111), and the pressure buckle (500) forms a first outer step structure (540) around the outer periphery of the welding rib (1111), with the first outer step structure (540) and the first inner step structure (112) in clearance fit.

8. The branch connector according to any one of claims 1-4, characterized in that, The branch connector also includes a wire clamp (500), which covers the opening of the receiving cavity (110). The main cable (300) and the branch cable (400) are clamped between the wire clamp (500) and the base (100). The wire clamp (500) has a glue inlet (550) in the middle, and a cover (800) is provided at the glue inlet (550). The cover (800) has a first protrusion (810) on the side facing the receiving cavity (110).

9. The branch connector according to claim 8, characterized in that, The bottom wall of the receiving cavity (110) is provided with a second protrusion (113).

10. The branch connector according to claim 8, characterized in that, On the wire clamp (500), an annular groove (560) is provided at the outer edge of the glue inlet (550). The annular groove (560) and the glue inlet (550) form a second inner step structure (570). The box cover (800) is provided with a second outer step structure (820). The second outer step structure (820) and the second inner step structure (570) are in clearance fit.

11. The branch connector according to claim 8, characterized in that, The glue inlet (550) has buckles (580) on both sides of its opposite side walls, and the box cover (800) has slots (830) at both opposite ends that correspond to the buckles (580). The slots (830) engage with the corresponding buckles (580).

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