Branching terminal

Abstract

The invention 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 disclosed by the invention, the upper shell and the lower shell are mutually buckled 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] This invention relates to the field of connector technology, and more particularly to a splitter terminal. Background Technology

[0002] High-current branch terminals currently used in the railway industry commonly employ a screw-type wiring method with one input and multiple outputs or several inputs and multiple outputs. The maximum wire capacity at the input end is 50mm². 2 / Root, therefore, when the screw at the input end is subjected to a large torque, the wire is prone to pushing open the baffle on the side of the housing, causing the baffle to fall off, which reduces the reliability of the product.

[0003] In existing technologies, this type of branch terminal often has a limited number of output terminals, thus failing to meet various customer wiring needs. Summary of the Invention

[0004] The purpose of this invention is to provide a branch terminal that can withstand greater torque when connected to large-diameter wires, thereby improving the structural reliability of the product while ensuring electrical safety and reliability, and meeting different wiring needs of customers.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A branch terminal includes a branch terminal body and an input terminal and two output terminals disposed on the branch terminal body; the branch terminal body includes a housing, a current bar, a first wiring assembly, a second wiring assembly, and a third wiring assembly; the housing includes a lower housing and an upper housing fastened to the lower housing; the current bar is an integrated structure, and the first wiring assembly, the second wiring assembly, and the third wiring assembly are electrically connected to the current bar and assembled inside the lower housing.

[0007] In the above-mentioned splitter terminal, the input terminal is a screw-type input terminal, and the two output terminals are a through-hole output terminal and a screw-type output terminal, respectively; the screw-type input terminal is provided with a first inlet hole on the left side of the splitter terminal body, the through-hole output terminal is provided with a second inlet hole on the top of the splitter terminal body, and the screw-type output terminal is provided with a third inlet hole on the right side of the splitter terminal body.

[0008] The cable inlet direction of the first cable inlet is perpendicular to the cable inlet direction of the second cable inlet, and the cable inlet direction of the first cable inlet is parallel to the cable inlet direction of the third cable inlet.

[0009] In the aforementioned 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 aforementioned branch terminal, the end of the first conductive part away from the second conductive part facing the upper housing is bent to form an S-shaped superimposed structure, and the end of the third conductive part facing the lower housing is bent to form a U-shaped superimposed structure.

[0011] In the aforementioned branch terminal, the bend of the third conductive part has a stepped portion protruding on the side facing the wire.

[0012] In the aforementioned branch terminal, the first wiring assembly includes a first wire clamping block and a first screw; the second wiring assembly includes an assembly, a wire clamping spring, and a push block; and the third wiring assembly includes a third wire clamping block, a third screw, and a washer.

[0013] In the aforementioned branch terminal, the top of the upper housing is provided with a first through hole corresponding to the first screw, an insertion hole is provided corresponding to the push block, and a third through hole is provided corresponding to the third screw.

[0014] In the aforementioned branch terminal, the second inlet hole and the third through hole are misaligned.

[0015] In the aforementioned branch terminal, the upper housing is provided with a first marking groove in the area of ​​the screw-type input terminal, a second marking groove in the area of ​​the through-hole output terminal, and a third marking groove in the area of ​​the screw-type output terminal;

[0016] The first marking groove contains a first marking strip, the second marking groove contains a second marking strip, and the third marking groove contains a third marking strip.

[0017] In the aforementioned branch terminal, a bridging area is also provided between the input terminal and the two output terminals, and the front and rear sides of the branch terminal body can be bridged with the terminal through bridging components.

[0018] In the aforementioned branch terminal, the branch terminal body is snapped into the guide rail via guide rail mounting feet.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0020] The branch terminal of this invention uses screw-type wiring technology at the input end and has two incoming wires, each with a maximum wire capacity of 90mm². 2The output end is compatible with both plug-in and screw-type wiring technologies. However, because its housing is formed by the interlocking of the upper and lower housings, the housing will not cause the baffle to open due to large torque when a large diameter wire is connected, which greatly improves the safety and reliability of the product structure.

[0021] Furthermore, the current strip of the branch terminal of the present invention adopts an integrated structure, which is compatible with two wiring technologies and three wiring specifications, greatly meeting the needs of customers with different wiring methods. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the branch terminal provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the branch terminal provided in an embodiment of the present invention from another perspective;

[0024] Figure 3 This is an exploded view of the branch terminal provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the current bar and the second wiring assembly before installation, as provided in this embodiment of the invention.

[0026] Figure 5 This is a schematic diagram of the structure of the current bar and the second wiring assembly after installation according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the branch terminal installed on the guide rail according to an embodiment of the present invention;

[0028] Figure 7 yes Figure 6 A top-view structural diagram. Detailed Implementation

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

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

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

[0036] like Figure 1 , Figure 2 and Figure 6 As shown, this embodiment of the invention provides a splitter terminal, including a splitter terminal body 100 and one input terminal and two output terminals disposed on the splitter terminal body 100. The input terminal is a screw-type input terminal 110, and the two output terminals are a through-hole 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 through-hole output terminal 120 refers to the output terminal using through-hole 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 splitter terminal body 100 and has a first inlet hole 1001. The through-hole output terminal 120 is located on the top of the splitter terminal body 100 and has a second inlet hole 1003. The screw-type output terminal 130 is located on the right side of the splitter terminal body 100 and has a third inlet hole 1005. The cable inlet direction of the first cable inlet hole 1001 is perpendicular to the cable inlet direction of the second cable inlet hole 1003, and parallel to the cable inlet direction of the third cable inlet hole 1005. This arrangement not only meets the different wiring needs of customers, but also facilitates customer differentiation and maintenance.

[0037] like Figure 3As shown, the branch terminal body 100 includes a housing, a current strip 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 fastened to the lower housing 10. The current strip 30 is an integrated structure. The first wiring assembly 41, the second wiring assembly 42, and the third wiring assembly 43 are electrically connected to the current strip 30. The current strip 30, together with the first wiring assembly 41, the second wiring assembly 42, and the third wiring assembly 43, is assembled into the lower housing 10. Correspondingly, the lower housing 10 is provided with a first mounting groove 101 for accommodating the first wiring assembly 41, and a second mounting groove 102 for accommodating the second wiring assembly 42 and the third wiring assembly 43. Specifically, the lower housing 10 has several first locking grooves 103 on its front and rear side walls, and the upper housing 20 has several first locking parts 201 on its front and rear side walls that match the first locking grooves 103. The upper housing 20 has several second locking grooves 202 on its left and right side walls, and the lower housing 10 has several second locking parts 104 on its left and right side walls that match the second locking grooves 202. The housing of this invention uses an interlocking method between the upper and lower housings. When a wire with a larger diameter is connected to the input end, the housing can ensure that the screws are not pried open even under high torque, solving the problem of the side baffles of existing housings being pried open and falling off. The structure is safe and reliable.

[0038] based on Figure 4 The current bar 30 shown 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. This current bar is formed into an integrated structure by bending a metal sheet, avoiding the excessive contact resistance caused by a split structure, which would affect the electrical connection stability of the terminals and effectively improve the electrical contact reliability of the product. Specifically, as... Figure 3 As shown, the first wiring assembly 41 is electrically connected to the first conductive part 301, the second wiring assembly 42 is electrically connected to the second conductive part 302, and the third wiring assembly 43 is electrically connected to the third conductive part 303. The first wiring assembly 41 includes a first wire 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 wire clamping block 411, and the first screw 412 is installed in the screw hole at the top of the first wire clamping block 411. The second wiring assembly 42 includes a mounting part 421, a wire clamping spring 422, and a push block 423. The mounting part 421 is constructed as a frame formed by a riveting part 4212 and wiring bases 4211 located on both sides of the top of the riveting part 4212. When the second wiring assembly 42 is assembled with the current bar 30, the mounting part 4211 is first riveted to the second conductive part 302 by rivets 305. Figure 5An exemplary structural diagram after assembly is shown. The wire clamping spring 422 is then installed inside the assembly 421, and the push block 423 is inserted into the housing from the top of the upper housing 20. The third wiring assembly 43 includes a third wire clamping block 431, a third screw 432, and a washer 433. When the third wiring assembly 43 is assembled with the current bar 30, the third conductive part 303 extends into the third wire clamping block 431, and the third screw 432 is installed in the top screw hole of the third wire clamping block 431. In order to fix and clamp the wire, the washer 433 is placed inside the third wire clamping block 431 between the third conductive part 303 and the wire. Understandably, the top of the upper housing 20 is provided with a first through hole 1002 that is adapted to the first screw 412. The first through hole 1002 corresponds one-to-one with the screw hole on the top of the first wire clamping block 411 and is coaxially arranged. The top of the upper housing 20 is also provided with a socket 1004 for inserting the push block 423. The push block 423 is inserted into the wiring base 4211 through the socket 1004 and contacts the wire clamping spring 422. The restoring force of the wire clamping spring 422 can clamp the wire located in the space of the wiring base 4211. The top of the upper housing 20 is also provided with a third through hole 1006 that is adapted to the third screw 432. The third through hole 1006 corresponds one-to-one with the screw hole on the top of the third wire clamping block 431 and is coaxially arranged. As another implementation of this embodiment, the third through hole 1006 and the second inlet hole 1003 are offset to facilitate the operation of the third screw 432 in the third through hole 1006 to avoid the wires in the second inlet hole 1003 in the plug-in output terminal 120, so that customers can connect the plug-in output terminal 120 and the screw-type output terminal 130 without interference.

[0039] In this embodiment, during use, the screw-type output terminal 130 is typically connected to a large-diameter rigid wire. After repeated pulling and twisting, this wire is prone to loosening and dislodging from the locking system composed of the third conductive part 303 and the third wiring assembly 43. To solve this problem, as another embodiment of the present invention, such as Figure 4 As shown, the bend of the third conductive part 303 has a stepped part 3031 protruding on the side facing the wire. The purpose is to provide a stable clamping force for clamping the wire, ensuring that the large-diameter rigid wire maintains good stability in the locking system composed of the third conductive part 303 and the third wiring assembly 43, and preventing the wire from coming loose.

[0040] As another implementation of this embodiment, such as Figure 3 and Figure 4As shown, in order to accommodate two wiring technologies and implement three wiring specifications on the current bar 30, the two wiring technologies refer to screw-type wiring technology and plug-in wiring technology, and the three wiring specifications refer to the three wire specifications of the screw-type input terminal, plug-in output terminal, and screw-type output terminal. Therefore, the end of the first conductive part 301 away from the second conductive part 302 facing the upper housing 20 is bent to form an S-shaped superimposed structure, and the end of the third conductive part 303 facing the lower housing 10 is bent to form a U-shaped superimposed structure. That is to say, the current bar of the screw-type input terminal 110 is bent upward twice, and the current bar of the screw-type output terminal 130 is bent downward once. The purpose is to make the first conductive part 301 reach a certain standard thickness and match the first clamping block 411, and the third conductive part 303 reach a certain standard thickness and match the third clamping block 431, thereby meeting the technical requirements of the screw-type input terminal 110 and the screw-type output terminal 130 for mechanical and electrical parameters, that is, to meet the current carrying requirements while clamping the wire.

[0041] based on Figure 2 and Figure 6 The branch terminal shown has a first marking groove 1007-1 in the input terminal 110 area of ​​the upper housing 20, a second marking groove 1007-2 in the output terminal 120 area, and a third marking groove 1007-3 in the output terminal 130 area. A first marking strip 1009-1 is inserted into the first marking groove 1007-1, a second marking strip 1009-2 is inserted into the second marking groove 1007-2, and a third marking strip 1009-3 is inserted into the third marking groove 1007-3. This structural design facilitates personnel identification and differentiation of operations.

[0042] based on Figure 6 and Figure 7 The branch terminal shown has a bridging area 1008 between its input end and two output ends, and the connecting part 304 of the current bar 30 is provided with a corresponding bridging hole. Therefore, the front and rear sides of the branch terminal body 100 can be bridged with the terminal 200 through the bridging member 300, meeting more application requirements. In this embodiment, the terminal 200 is a straight-insertion spring terminal.

[0043] In this embodiment, during the assembly of the branch terminal, 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. Then, they are installed together into the corresponding first assembly slot 101 and second assembly slot 102 inside the lower housing 10. The upper housing 20 is then vertically snapped onto the lower housing 10. Finally, the guide rail mounting foot 50 is installed into the corresponding mounting slot of the lower housing 10. When using the branch terminal of this invention, firstly, the wires are inserted into the two first inlet holes 1001 of the input terminal 110, and then the first screw 412 located in the first through hole 1002 is tightened with a hex wrench. Next, the wires are inserted into the four second inlet holes 1003 of the output terminal 120, and then the wires are inserted into the three third inlet holes 1005 of the output terminal 130. Then, the third screw 432 located in the third through hole 1006 is tightened with a flathead screwdriver. Finally, the entire branch terminal device is snapped onto the guide rail via the guide rail mounting foot 50.

[0044] As can be seen, the branch terminal in this embodiment has a two-position screw-type wire inlet at the input end, and the wire inlet direction at the input end is horizontal. The output end has a four-position through-hole wire inlet and a three-position screw-type wire inlet, and the wire inlet direction at the output end adopts both vertical and horizontal wire inlet methods. At the same time, the staggered design prevents mutual interference when the wires at the output end are wired, which improves 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 of the present invention. Those skilled in the art can make other variations or modifications based on the above description. 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 the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A branch terminal, characterized in that: It includes a branch terminal body (100) and one input terminal and two output terminals disposed on the branch terminal body (100); 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) fastened to 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 electrically connected to the current bar (30) and assembled into the lower housing (10).

2. The branch terminal according to claim 1, characterized in that, The input terminal is a screw-type input terminal (110), and the two output terminals are a through-hole output terminal (120) and a screw-type output terminal (130), respectively. The screw-type input terminal (110) is provided with a first inlet hole (1001) on the left side of the splitter terminal body (100), the through-hole output terminal (120) is provided with a second inlet hole (1003) on the top of the splitter terminal body (100), and the screw-type output terminal (130) is provided with a third inlet hole (1005) on the right side of the splitter terminal body (100). The cable inlet direction of the first cable inlet (1001) is perpendicular to the cable inlet direction of the second cable inlet (1003), and the cable inlet direction of the first cable inlet (1001) is parallel to the cable inlet direction of the third cable inlet (1005).

3. The branch terminal according to claim 1, characterized in that, The current bar (30) 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 first wiring assembly (41) is electrically connected to the first conductive part (301), the second wiring assembly (42) is electrically connected to the second conductive part (302), and the third wiring assembly (43) is electrically connected to the third conductive part (303).

4. The branch terminal according to claim 3, characterized in that, The first conductive part (301) is bent into an S-shaped superimposed structure at one end away from the second conductive part (302) and facing the upper housing (20), and the third conductive part (303) is bent into a U-shaped superimposed structure at one end facing the lower housing (10).

5. The branch terminal according to claim 4, characterized in that, The third conductive part (303) has a stepped part (3031) protruding from the side of the bend facing the wire.

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

7. The branch terminal according to claim 6, characterized in that, The top of the upper housing (20) is provided with a first through hole (1002) corresponding to the first screw (412), an insertion 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 inlet hole (1003) is offset from the third through hole (1006).

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 the area of ​​the screw-type input end (110), a second marking groove (1007-2) in the area of ​​the plug-in output end (120), and a third marking groove (1007-3) in the area of ​​the screw-type output end (130). The first marking groove (1007-1) is provided with a first marking strip (1009-1), the second marking groove (1007-2) is provided with a second marking strip (1009-2), and the third marking groove (1007-3) is provided with a third marking strip (1009-3).

10. The branch terminal according to claim 1, characterized in that, A bridging area (1008) is provided between the input terminal and the two output terminals. The front and rear sides of the branch terminal body (100) can be bridged with the terminal (200) through the bridging component (300).

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