Branching terminal

Abstract

The utility model provides a branching terminal. The branching terminal comprises a branching terminal body, an input end and two output ends, wherein the input end and the two output ends are arranged on the branching terminal body; the branching terminal body comprises a shell, a current strip, a first wiring assembly, a second wiring assembly and a third wiring assembly; the shell comprises a lower shell and an upper shell buckled on the lower shell; the current strip is of an integrated structure, and the first wiring assembly, the second wiring assembly and the third wiring assembly are conductively connected with the current strip and assembled into the lower shell. According to the branching terminal provided by the utility model, the upper shell and the lower shell are buckled with each other to form the whole shell, so that when a wire with a larger wire diameter is connected, the abnormal condition that the shell ejects the side baffle open due to large torque is avoided, and the safety and the reliability of a product structure are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a branching terminal. Background Art

[0002] The existing high-current branch terminals used in the railway industry usually use a screw wiring method with one input and multiple outputs or several inputs and multiple outputs. The maximum wire wiring capacity at the input end is 50mm 2 / roots, so when the screw at the input end is subjected to a large torque, the wire is easy to push open the baffle on the side of the shell, causing the baffle to fall off, resulting in reduced product reliability.

[0003] In the prior art, this type of branch terminal often has a small number of output terminals, and therefore cannot meet the various wiring requirements of customers. Utility Model Content

[0004] The utility model aims to provide a branching terminal, which can withstand a large torque when connecting a large-diameter wire, thereby improving the structural reliability of the product while ensuring safe and reliable electrical performance; and can meet the different wiring requirements of customers.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A branch terminal comprises a branch terminal body and an input terminal and two output terminals arranged on the branch terminal body; the branch terminal body comprises a shell, a current bar, a first wiring assembly, a second wiring assembly and a third wiring assembly; the shell comprises a lower shell and an upper shell snapped onto the lower shell; the current bar is an integrated structure, and the first wiring assembly, the second wiring assembly and the third wiring assembly are respectively conductively connected to the current bar and assembled into the interior of the lower shell.

[0007] In the above-mentioned branch terminal, the input end is a screw-type input end, and the two output ends are respectively a plug-in output end and a screw-type output end; the screw-type input end is located on the left side of the branch terminal body and is provided with a first wire entry hole, the plug-in output end is located on the top of the branch terminal body and is provided with a second wire entry hole, and the screw-type output end is located on the right side of the branch terminal body and is provided with a third wire entry hole;

[0008] The wire entry direction of the first wire entry hole is perpendicular to the wire entry direction of the second wire entry hole, and the wire entry direction of the first wire entry hole is parallel to the wire entry direction of the third wire entry hole.

[0009] In the above-mentioned branch terminal, the current bar includes a first conductive part, a second conductive part, a third conductive part and a connecting part connecting the first conductive part and the second conductive part; the first wiring assembly is conductively connected to the first conductive part, the second wiring assembly is conductively connected to the second conductive part, and the third wiring assembly is conductively connected to the third conductive part.

[0010] In the above branch terminal, one end of the first conductive part away from the second conductive part is bent toward one side of the upper shell to form an S-shaped stacking structure, and one end of the third conductive part is bent toward one side of the lower shell to form a U-shaped stacking structure.

[0011] In the above branch terminal, a step portion is protruded from a side of the bending portion of the third conductive portion facing the wire.

[0012] In the above-mentioned branch terminal, the first wiring assembly includes a first clamping block and a first screw; the second wiring assembly includes an assembly part, a wire pressing spring and a push block; the third wiring assembly includes a third clamping block, a third screw and a gasket.

[0013] In the above-mentioned branching terminal, a first through hole is provided at the top of the upper shell corresponding to the first screw, a plug hole is provided corresponding to the push block, and a third through hole is provided corresponding to the third screw.

[0014] In the above branch terminal, the second wire entry hole and the third through hole are arranged in a staggered manner.

[0015] In the above-mentioned branch terminal, the upper shell is provided with a first marking groove in the area located at the screw input end, a second marking groove in the area located at the plug-in output end, and a third marking groove in the area located at the screw output end;

[0016] Wherein, a first marking strip is inserted into the first marking groove, a second marking strip is inserted into the second marking groove, and a third marking strip is inserted into the third marking groove.

[0017] In the above-mentioned branch terminal, a bridging area is further provided between the input end and the two output ends, and the front side and the rear side of the branch terminal body can be bridged with the terminals through a bridging piece.

[0018] In the above-mentioned branch terminal, the branch terminal body is clamped with the guide rail through the guide rail mounting foot.

[0019] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0020] The branching terminal of the utility model adopts screw wiring technology at the input end and is equipped with two incoming wires, and the maximum wiring capacity of each wire can reach 90mm 2The output end is compatible with both plug-in wiring technology and screw wiring technology. However, since the shell is formed by the upper shell and the lower shell being buckled together, when a wire with a larger wire diameter is connected, the shell will not have the abnormal situation of pushing open the baffle due to large torque, which greatly improves the safety and reliability of the product structure.

[0021] In addition, the branching terminal of the utility model adopts an integrated structure for the current bar, which is compatible with two wiring technologies and three wiring specifications, thus greatly meeting the needs of customers for different wiring methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a branching terminal provided by an embodiment of the utility model;

[0023] Figure 2 This is a schematic structural diagram of a branching terminal provided by an embodiment of the utility model from another perspective;

[0024] Figure 3 It is a schematic diagram of the exploded structure of the branch terminal provided by the embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the assembly of the current bar and the second wiring assembly provided by the embodiment of the utility model before installation;

[0026] Figure 5 It is a schematic diagram of the structure after the assembly of the current bar and the second wiring assembly provided by the embodiment of the utility model is installed;

[0027] Figure 6 This is a schematic diagram of the structure of the branching terminal provided by the embodiment of the utility model installed on the guide rail;

[0028] Figure 7 yes Figure 6 Schematic diagram of the top view structure. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0035] In the following embodiments, the Figure 1 Arrows are used to define the direction.

[0036] like Figure 1 , Figure 2 and Figure 6 As shown, this embodiment provides a branch terminal, including a branch terminal body 100 and an input terminal and two output terminals arranged on the branch terminal body 100, wherein the input terminal is a screw-type input terminal 110, and the two output terminals are a plug-in output terminal 120 and a screw-type output terminal 130. Specifically, the screw-type input terminal 110 refers to the input terminal using screw-type wiring technology, the plug-in output terminal 120 refers to the output terminal using plug-in wiring technology, and the screw-type output terminal 130 refers to the output terminal using screw-type wiring technology. The screw-type input terminal 110 is located on the left side of the branch terminal body 100 and is provided with a first wire entry hole 1001, the plug-in output terminal 120 is located on the top of the branch terminal body 100 and is provided with a second wire entry hole 1003, and the screw-type output terminal 130 is located on the right side of the branch terminal body 100 and is provided with a third wire entry hole 1005. The wire entry direction of the first wire entry hole 1001 is perpendicular to that of the second wire entry hole 1003, and parallel to that of the third wire entry hole 1005. This arrangement not only meets the different wiring requirements of customers, but also facilitates customer distinction and maintenance.

[0037] like Figure 3As shown, the branch terminal body 100 includes a housing, a current bar 30, a first wiring assembly 41, a second wiring assembly 42 and a third wiring assembly 43. The housing includes a lower housing 10 and an upper housing 20 buckled on the lower housing 10. The current bar 30 is an integrated structure. The first wiring assembly 41, the second wiring assembly 42 and the third wiring assembly 43 are respectively conductively connected to the current bar 30. The current bar 30, together with the first wiring assembly 41, the second wiring assembly 42 and the third wiring assembly 43, are assembled into the lower housing 10. Correspondingly, the lower housing 10 is provided with a first assembly groove 101 for accommodating the first wiring assembly 41, and a second assembly groove 102 for accommodating the second wiring assembly 42 and the third wiring assembly 43. Specifically, a plurality of first clamping grooves 103 are provided on the side walls on the front and rear sides of the lower shell 10, and a plurality of first clamping parts 201 matching the first clamping grooves 103 are correspondingly provided on the side walls on the front and rear sides of the upper shell 20; a plurality of second clamping grooves 202 are provided on the side walls on the left and right sides of the upper shell 20, and a plurality of second clamping parts 104 matching the second clamping grooves 202 are provided on the side walls on the left and right sides of the lower shell 10. The shell of the utility model adopts a method of mutually buckling the upper shell and the lower shell. When the input end is connected to a wire with a larger wire diameter, the shell can ensure that the screw is not pushed open under a large torque, which solves the problem that the baffle on the side of the existing shell is pushed open and falls off, and the structure is safe and reliable.

[0038] based on Figure 4 The current bar 30 shown in the figure includes a first conductive part 301, a second conductive part 302, a third conductive part 303 and a connecting part 304 connecting the first conductive part 301 and the second conductive part 302. The current bar is formed into an integrated structure by bending a metal plate, thereby avoiding excessive contact resistance caused by a split structure, which affects the electrical connection stability of the terminal and effectively improves the electrical contact reliability of the product. Specifically, Figure 3 As shown, the first wiring assembly 41 is conductively connected to the first conductive part 301, the second wiring assembly 42 is conductively connected to the second conductive part 302, and the third wiring assembly 43 is conductively connected to the third conductive part 303. The first wiring assembly 41 includes a first clamping block 411 and a first screw 412. When the first wiring assembly 41 is assembled with the current bar 30, the first conductive part 301 extends into the first clamping block 411, and the first screw 412 is installed in the screw hole at the top of the first clamping block 411. The second wiring assembly 42 includes an assembly part 421, a wire pressing spring 422 and a push block 423. The assembly part 421 is constructed as a frame formed by a riveted part 4212 and a wiring base 4211 located on both sides of the top of the riveted part 4212. When the second wiring assembly 42 is assembled with the current bar 30, the assembly part 421 first rivets the riveted part 4212 to the second conductive part 302 through the rivets 305. Figure 5The schematic diagram of the assembled structure is shown as an example, and then the wire pressing spring piece 422 is installed inside the assembly part 421, and the push block 423 is inserted into the shell from the top of the upper shell 20. Among them, the third wiring assembly 43 includes a third clamping block 431, a third screw 432 and a gasket 433. When the third wiring assembly 43 is assembled with the current bar 30, the third conductive part 303 extends into the third clamping block 431, and the third screw 432 is installed in the top screw hole of the third clamping block 431. In order to fix and clamp the wire, the gasket 433 is placed between the third conductive part 303 and the wire inside the third clamping block 431. It can be understood that the top of the upper shell 20 is provided with a first through hole 1002 adapted to the first screw 412, and the first through hole 1002 corresponds one-to-one with the screw hole on the top of the first clamping block 411 and is coaxially arranged; the top of the upper shell 20 is also provided with a socket 1004 for inserting the push block 423, and the plug block 423 is inserted into the wiring base 4211 through the socket 1004 and contacts with the wire pressing spring piece 422, and the restoring force of the wire pressing spring piece 422 can clamp the wire located in the space of the wiring base 4211; the top of the upper shell 20 is also provided with a third through hole 1006 adapted to the third screw 432, and the third through hole 1006 corresponds one-to-one with the screw hole on the top of the third clamping block 431 and is coaxially arranged. As another implementation of this embodiment, the third through hole 1006 and the second wire entry hole 1003 are staggered to facilitate the operation of the third screw 432 in the third through hole 1006 so as to avoid the wire in the second wire entry hole 1003 in the plug-in output terminal 120, so as to facilitate the customers to connect the plug-in output terminal 120 and the screw output terminal 130 without interfering with each other.

[0039] During use of the branch terminal of this embodiment, the screw-type output terminal 130 is usually connected to a hard wire with a large wire diameter. After being pulled and twisted for many times, the wire is easily loosened and disengaged from the locking system composed of the third conductive part 303 and the third wiring assembly 43. In order to solve this problem, as another embodiment of the utility model, Figure 4 As shown, a step portion 3031 is protruded from the bending part of the third conductive portion 303 toward the side of the wire, the purpose of which is to provide a stable clamping force for clamping the wire, ensure that the large-diameter hard wire maintains good stability in the locking system composed of the third conductive portion 303 and the third wiring assembly 43, and prevent the wire from loosening.

[0040] As another implementation of this embodiment, Figure 3 and Figure 4As shown, in order to be compatible with two wiring technologies and realize three wiring specifications on the current bar 30, the two wiring technologies here refer to the screw wiring technology and the plug-in wiring technology, and the three wiring specifications here refer to the screw input terminal, the plug-in output terminal and the screw output terminal. There are three wire specifications, so the end of the first conductive part 301 away from the second conductive part 302 is bent toward the side of the upper shell 20 to form an S-shaped stacking structure, and one end of the third conductive part 303 is bent toward the side of the lower shell 10 to form a U-shaped stacking structure, that is, the current bar of the screw input terminal 110 is bent upward twice, and the current bar of the screw output terminal 130 is bent downward once, so that the first conductive part 301 reaches a certain standard thickness and matches the first clamping block 411, and the third conductive part 303 reaches a certain standard thickness and matches the third clamping block 431, thereby meeting the technical requirements of the screw input terminal 110 and the screw output terminal 130 for mechanical parameters and electrical parameters, that is, clamping the wire while meeting the current requirements.

[0041] based on Figure 2 and Figure 6 In the branch terminal shown, the upper shell 20 is provided with a first marking groove 1007-1 in the area located at the input end 110, a second marking groove 1007-2 in the area located at the output end 120, and a third marking groove 1007-3 in the area located at the output end 130. Among them, a first marking strip 1009-1 is inserted in the first marking groove 1007-1, a second marking strip 1009-2 is inserted in the second marking groove 1007-2, and a third marking strip 1009-3 is inserted in the third marking groove 1007-3. The above structural arrangement is convenient for personnel to identify and distinguish operations.

[0042] based on Figure 6 and Figure 7 The branch terminal shown in the figure is also provided with a bridge area 1008 between its input end and the two output ends, and the connecting portion 304 of the current bar 30 is correspondingly provided with a bridge hole, so that the front and rear sides of the branch terminal body 100 can be bridged with the terminal 200 through the bridge member 300 to meet more application requirements. In this embodiment, the terminal 200 is a plug-in spring terminal.

[0043] When assembling the branch terminal of the present embodiment, the current bar 30 is pre-assembled with the first wiring assembly 41, the second wiring assembly 42 and the third wiring assembly 43 respectively, and then installed together into the corresponding first assembly groove 101 and the second assembly groove 102 inside the lower housing 10, and then the upper housing 20 is vertically clamped on the lower housing 10, and finally the guide rail mounting foot 50 is installed into the corresponding mounting groove of the lower housing 10. When the branch terminal of the present utility model is used, firstly, the wires are respectively inserted into the two first wire entry holes 1001 of the input end 110, and then the first screw 412 located in the first through hole 1002 is tightened with a hexagonal wrench tool, then the wires are respectively inserted into the four second wire entry holes 1003 of the output end 120, and then the wires are respectively inserted into the three third wire entry holes 1005 of the output end 130, and then the third screw 432 located in the third through hole 1006 is tightened with a flat-blade screwdriver tool, and finally the entire branch terminal device is clamped with the guide rail through the guide rail mounting foot 50.

[0044] It can be seen that the branching terminal of this embodiment has a two-position screw-type wiring entry hole at the input end, and the input line direction of the input end adopts horizontal entry. The output end is provided with a four-position plug-in wiring entry hole and a three-position screw-type wiring entry hole, and the output line direction adopts vertical entry and horizontal entry. At the same time, the staggered design prevents the wires at the output end from interfering with each other during wiring, thereby improving the convenience of operation and maintenance.

[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A branching terminal, characterized in that: It comprises a branch terminal body (100) and an input end and two output ends arranged on the branch terminal body (100); The branch terminal body (100) comprises a housing, a current bar (30), a first wiring assembly (41), a second wiring assembly (42) and a third wiring assembly (43); The housing comprises a lower housing (10) and an upper housing (20) buckled with the lower housing (10); The current bar (30) is an integrated structure; the first wiring assembly (41), the second wiring assembly (42) and the third wiring assembly (43) are respectively conductively connected to the current bar (30) and assembled into the interior of the lower housing (10).

2. The branch terminal according to claim 1, characterized in that: The input end is a screw-type input end (110), and the two output ends are respectively a plug-in output end (120) and a screw-type output end (130); the screw-type input end (110) is located on the left side of the branch terminal body (100) and is provided with a first wire entry hole (1001), the plug-in output end (120) is located on the top of the branch terminal body (100) and is provided with a second wire entry hole (1003), and the screw-type output end (130) is located on the right side of the branch terminal body (100) and is provided with a third wire entry hole (1005); The wire entry direction of the first wire entry hole (1001) and the wire entry direction of the second wire entry hole (1003) are perpendicular to each other, and the wire entry direction of the first wire entry hole (1001) and the wire entry direction of the third wire entry hole (1005) are parallel to each other.

3. The branch terminal according to claim 2, characterized in that: The current bar (30) comprises a first conductive part (301), a second conductive part (302), a third conductive part (303), and a connecting part (304) connecting the first conductive part (301) and the second conductive part (302); the first wiring assembly (41) is conductively connected to the first conductive part (301), the second wiring assembly (42) is conductively connected to the second conductive part (302), and the third wiring assembly (43) is conductively connected to the third conductive part (303).

4. The branch terminal according to claim 3, characterized in that: One end of the first conductive part (301) away from the second conductive part (302) is bent toward one side of the upper shell (20) to form an S-shaped stacking structure, and one end of the third conductive part (303) is bent toward one side of the lower shell (10) to form a U-shaped stacking structure.

5. The branch terminal according to claim 4, characterized in that: A step portion (3031) is protrudingly provided at a side of the bending portion of the third conductive portion (303) facing the conductive wire.

6. The branch terminal according to claim 3, characterized in that: The first wiring assembly (41) comprises a first wire clamping block (411) and a first screw (412); the second wiring assembly (42) comprises an assembly part (421), a wire pressing spring (422) and a push block (423); and the third wiring assembly (43) comprises a third wire clamping block (431), a third screw (432) and a gasket (433).

7. The branch terminal according to claim 6, characterized in that: The top of the upper shell (20) is provided with a first through hole (1002) corresponding to the first screw (412), a plug hole (1004) corresponding to the push block (423), and a third through hole (1006) corresponding to the third screw (432).

8. The branch terminal according to claim 7, characterized in that: The second wire entry hole (1003) and the third through hole (1006) are arranged in a staggered manner.

9. The branch terminal according to claim 2, characterized in that: The upper housing (20) is provided with a first marking groove (1007-1) in an area located at the screw input end (110), a second marking groove (1007-2) in an area located at the plug-in output end (120), and a third marking groove (1007-3) in an area located at the screw output end (130); The first marking groove (1007-1) is inserted with a first marking strip (1009-1), the second marking groove (1007-2) is inserted with a second marking strip (1009-2), and the third marking groove (1007-3) is inserted with a third marking strip (1009-3).

10. The branch terminal according to claim 1, characterized in that: A bridging area (1008) is also provided between the input end and the two output ends, and the front side and the rear side of the branch terminal body (100) can be bridged with the terminal (200) via a bridging member (300).

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