A quick-connect bus terminal with grounding protection

Abstract

The utility model discloses a kind of quick connection small bus terminals with grounding protection, through the limiting portion design of wire pressing frame assembly and conducting row, realize the quick fixing and guiding of tubular busbar, wire pressing frame assembly is movably connected in inlet wire sink, easy to operate, can quickly complete the fixing of busbar, improve wiring efficiency, solve the defect that traditional terminal lacks convenient cable fixing structure;The design of positioning hole and positioning fastener on conducting row ensures the reliable connection of outlet flexible conductor, reduces the risk of poor contact, while the conducting row can be stably connected in wiring channel, simplify the structure of small bus terminal;Terminal seat bottom is equipped with grounding sheet, grounding hook portion is opposite to guide rail catch setting, so that when terminal seat is connected to guide rail, the grounding protection of small bus terminal can be quickly realized, easy to install, on the basis of integrated grounding protection function, avoid additional cost, also improve safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of electrical wiring technology, specifically to a quick-connect small busbar terminal with grounding protection. Background Technology

[0002] Busbar terminals are a type of terminal block. Their core function is to establish a reliable electrical connection. By tightening screws to crimp wires, the connection is reliable and suitable for high-current scenarios, such as power distribution cabinets and motor control.

[0003] In power distribution cabinets, small busbar terminals play multiple roles in the power system. Their main function is as a current transmission hub, connecting the busbar and branch lines to ensure stable power distribution. They avoid the chaos of numerous point-to-point flying wires and improve the standardization and reliability of wiring within the cabinet. As a key interface connecting the small busbar and branch lines, the small busbar terminal block plays a crucial role.

[0004] In some existing power distribution cabinets, the internal incoming lines are made of copper busbars with a large diameter, while the outgoing lines use flexible wires for the incoming branch. However, the existing small busbar terminals lack convenient cable fixing or guiding structures, which makes wiring inconvenient. Moreover, the traditional small busbar terminal design usually only includes phase and neutral lines, lacking connection terminals, which increases the risk of poor or missing grounding of the cabinet and poses potential safety hazards. Designing separate connection terminals would greatly increase the manufacturing cost of the terminals.

[0005] In view of this, there is an urgent need to design a quick-connect small busbar terminal with grounding protection to address the shortcomings of existing small busbar terminals in the application of power distribution cabinets. Summary of the Invention

[0006] To address the aforementioned problems, this utility model provides a quick-connect small busbar terminal with grounding protection, comprising a terminal base. The terminal base includes an inlet and an outlet. The terminal base has at least one wiring channel, which includes a positioning platform and partition walls on both sides of the positioning platform. The positioning platform has an inlet groove and an outlet hole. A conductive busbar is connected to the positioning platform. The conductive busbar narrows inward on both sides opposite the inlet groove to form a limiting portion. A wire clamping frame assembly is connected to the limiting portion. A wire pressing channel is provided between the conductive bars. The wire pressing frame assembly is movably connected in the inlet groove. A positioning hole is opened on the conductive bar opposite to the outlet connection hole. A positioning fastener is connected to the conductive bar. The positioning fastener passes through the positioning hole and is connected in the outlet connection hole. The bottom of the terminal block is provided with a guide rail hook and a positioning cavity. A grounding plate is fixedly connected in the positioning cavity. The grounding plate includes a mounting part and a grounding hook part. The grounding hook part is set opposite to the guide rail hook. The mounting part extends to the outside of the terminal block.

[0007] In one possible implementation, the positioning cavity is provided with a clamping groove and a snap-fit ​​plate. The grounding piece includes a main body and a snap-fit ​​part. The main body is connected to the clamping groove, the snap-fit ​​part has a snap-fit ​​hole, the snap-fit ​​plate is connected to the snap-fit ​​hole, and the grounding hook and the snap-fit ​​part are both located on the side of the main body away from the conductive busbar.

[0008] In one possible implementation, two grounding hooks are provided, and the two grounding hooks are arranged opposite each other.

[0009] In one possible implementation, the terminal block has a clearance groove, and the mounting portion extends through the clearance groove to the outside of the terminal block.

[0010] In one possible implementation, the wire clamping frame assembly includes a wire clamping frame, a clamping pad, and a wire clamping fastener. The clamping pad sequentially includes a wire clamping portion, a connecting portion, and a plug-in portion. The limiting portion and the wire clamping portion are both connected inside the wire clamping frame. The wire clamping fastener sequentially passes through the plug-in portion and is connected to the wire clamping frame. The wire clamping frame is movably connected inside the inlet groove.

[0011] In one possible implementation, the plug-in portion includes two limiting forks, with a fastening connection port between the limiting forks, and the wire clamp fastener is connected within the fastening connection port.

[0012] In one possible implementation, both the side of the pressure line portion facing the limiting portion and the side of the limiting portion facing the pressure line portion are arc-shaped concave surfaces.

[0013] In one possible implementation, a pressure pad is connected between the positioning fastener and the conductive bar.

[0014] In one possible implementation, the grounding plate is integrally formed by stamping, and the material of the grounding plate is galvanized steel.

[0015] In one possible implementation, the depth of the feed trough is 5mm to 8mm.

[0016] The wiring method of the small busbar terminal in this technical solution is as follows: the terminal block is connected to the guide rail of the power distribution cabinet through the guide rail hook, the grounding hook of the grounding piece is electrically connected to the guide rail simultaneously, the tubular busbar in the power distribution cabinet is connected to the wire pressing channel, the wire pressing frame assembly is operated to fix the tubular busbar at the inlet, and the flexible wire is connected to the outlet through the positioning fastener, thereby completing the power supply and distribution wiring and grounding protection of the small busbar terminal in the power distribution box.

[0017] This technical solution for small busbar terminals achieves rapid fixing and guidance of tubular busbars through the design of the wire clamping frame assembly and the limiting part of the conductive busbar. The wire clamping frame assembly is movably connected in the inlet groove, making operation simple and enabling quick fixing of the busbar, thus improving wiring efficiency and solving the defect of traditional terminals lacking convenient cable fixing structures. The positioning holes and positioning fasteners on the conductive busbar ensure reliable connection of the outgoing flexible wires, reducing the risk of poor contact, and at the same time, can stably connect the conductive busbar in the wiring channel, simplifying the structure of the small busbar terminal.

[0018] The terminal block of this technical solution is equipped with a grounding plate at the bottom of the terminal block, and the grounding hook is set directly opposite the guide rail hook. This allows the grounding protection of the small busbar terminal to be quickly achieved when the terminal block is connected to the guide rail. The installation is simple, and it avoids additional costs while improving safety and reliability based on the integrated grounding protection function. Attached Figure Description

[0019] Figure 1 This is a perspective view of the small busbar terminal of an embodiment of this utility model.

[0020] Figure 2 This is another perspective view of the small busbar terminal of this utility model embodiment.

[0021] Figure 3 This is an exploded view of the small busbar terminal of an embodiment of this utility model.

[0022] Figure 4 This is a perspective view of the terminal block according to an embodiment of the present utility model.

[0023] Figure 5 This is an exploded view of the terminal block and grounding plate according to an embodiment of the present invention.

[0024] Figure 6 This is a side view of the small busbar terminal in an embodiment of the present utility model.

[0025] Figure 7 for Figure 6 Sectional view of AA.

[0026] Figure 8 This is a perspective view of the crimping gasket in an embodiment of the present utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Combined with appendix Figure 1 To be continued Figure 8 This utility model provides a quick-connect small busbar terminal with grounding protection, comprising a terminal block 1. The terminal block 1 includes an inlet 11 and an outlet 12. The terminal block 1 has at least one wiring channel 13, which includes a positioning platform 14 and partition walls 15 on both sides of the positioning platform 14. The positioning platform 14 has an inlet groove 16 and an outlet hole 17. A conductive busbar 2 is connected to the positioning platform 14. The conductive busbar 2, facing the inlet groove 16, narrows inward on both sides to form a limiting part 21. A pressure frame assembly 3 is connected to the limiting part 21. The pressure frame assembly 3 and the conductive busbar 2... A wire pressing channel 31 is provided between the two rows. The wire pressing frame assembly 3 is movably connected in the inlet groove 16. A positioning hole 22 is provided on the conductive row 2 opposite to the outlet connection hole 17. A positioning fastener 4 is connected to the conductive row 2. The positioning fastener 4 passes through the positioning hole 22 and is connected in the outlet connection hole 17. The bottom of the terminal block 1 is provided with a guide rail hook 18 and a positioning cavity 19. A grounding plate 5 is fixedly connected in the positioning cavity 19. The grounding plate 5 includes a mounting part 51 and a grounding hook part 52. The grounding hook part 52 is set opposite to the guide rail hook 18. The mounting part 51 extends to the outside of the terminal block 1.

[0029] In this embodiment, the small busbar terminal can be connected to the guide rail of the power distribution cabinet through the guide rail hook 18. The guide rail hook 18 is provided with various specifications, so that the small busbar terminal can be adapted to various guide rail connections. When the small busbar terminal is connected to the guide rail, the grounding piece 5 also forms an electrical connection with the guide rail.

[0030] In this embodiment, the wire clamping frame assembly 3 is used for connecting and fixing the conductive busbar inside the power distribution cabinet, and the positioning fastener 4 is used for connecting and fixing the outgoing wires.

[0031] In this embodiment, the design of the inlet groove 16 can realize the sinking and fastening of the wire clamping frame assembly 3, thereby reducing the overall size of the small busbar terminal; the outlet hole 17 is used for outlet connection and fixation, and at the same time serves as the fixation of the conductive busbar 2 in the wiring channel 13.

[0032] In this embodiment, the wiring method of the small busbar terminal is as follows: the terminal block 1 is connected to the guide rail of the power distribution cabinet through the guide rail hook 18, the grounding hook part 52 of the grounding piece 5 is electrically connected to the guide rail simultaneously, the tubular busbar in the power distribution cabinet is connected to the wire pressing channel 31, the wire pressing frame assembly 3 is operated to fix the tubular busbar in the inlet 11, and the flexible wire is connected to the outlet 12 through the positioning fastener 4, thereby completing the power supply and distribution wiring and grounding protection of the small busbar terminal in the power distribution box.

[0033] In this embodiment, the positioning cavity 19 is provided with a clamping groove 191 and a snap-fit ​​plate 192. The grounding piece 5 includes a main body 53 and a snap-fit ​​part 54. The main body 53 is connected in the clamping groove 191. The snap-fit ​​part 54 is provided with a snap-fit ​​hole 55. The snap-fit ​​plate 192 is connected in the snap-fit ​​hole 55. The grounding hook part 52 and the snap-fit ​​part 54 are both located on the side of the main body 53 away from the conductive busbar 2. The snap-fit ​​plate 192 is used to fix the grounding piece 5 to the terminal block 1.

[0034] In this embodiment, as shown in the appendix Figure 5 As shown, there are two grounding hooks 52, which are arranged opposite each other, so that the grounding piece 5 can be stably connected to guide rails of different sizes, thereby improving the versatility of the small busbar terminal.

[0035] In this embodiment, as shown in the appendix Figure 4 and attached Figure 5 As shown, a clearance groove 110 is provided on the terminal block 1, and the mounting part 51 extends through the clearance groove 110 to the outside of the terminal block 1, which facilitates the connection of the grounding piece 5 with other grounding accessories.

[0036] In this embodiment, as shown in the appendix Figure 3 and attached Figure 8 As shown, the wire clamping frame assembly 3 includes a wire clamping frame 32, a clamping pad 33, and a wire clamping fastener 34. The clamping pad 33 sequentially includes a wire clamping portion 331, a connecting portion 332, and a plug-in portion 333. The limiting portion 21 and the wire clamping portion 331 are both connected within the wire clamping frame 32. The wire clamping fastener 34 sequentially passes through the plug-in portion 333 and connects to the wire clamping frame 32. The wire clamping frame 32 is movably connected within the inlet groove 16. By tightening the wire clamping fastener 34, the wire clamping frame 32 and the wire clamping portion 331 of the clamping pad 33 move towards the conductive busbar side, causing the conductive busbar to be clamped between the clamping pad 33 and the conductive busbar 2.

[0037] In this embodiment, as shown in the appendix Figure 8As shown, the plug-in part 333 includes two limiting forks 334, and a fastening connection port 335 is provided between the limiting forks 334. The wire clamping fastener 34 is connected in the fastening connection port 335. The structure of the crimping gasket 33 facilitates the connection of the wire clamping fastener 34.

[0038] In this embodiment, as shown in the appendix Figure 3 and attached Figure 8 As shown, the limiting part 21 has a first arc-shaped concave surface 23 on the side facing the pressing part 331, and the pressing part 331 has a second arc-shaped concave surface 336 on the side facing the limiting part 21. The first arc-shaped concave surface 23 and the second arc-shaped concave surface 336 increase the contact area of ​​the conductive busbar in the pressing channel 31.

[0039] In this embodiment, as shown in the appendix Figure 3 As shown, a pressure pad 41 is connected between the positioning fastener 4 and the conductive busbar 2.

[0040] In this embodiment, the grounding piece 5 is integrally formed by stamping, and the material of the grounding piece 5 is galvanized steel. Galvanized steel is low in cost and has good conductivity.

[0041] In this embodiment, the depth of the inlet groove 16 is 5mm to 8mm.

[0042] In this embodiment, the small busbar terminal achieves rapid fixing and guidance of the tubular busbar through the limiting part design of the wire clamping frame assembly 3 and the conductive busbar 2. The wire clamping frame assembly 3 is movably connected in the inlet groove, which is easy to operate and can quickly fix the busbar, improving wiring efficiency and solving the defect of traditional terminals lacking convenient cable fixing structure. The positioning hole 22 and positioning fastener 4 on the conductive busbar 2 ensure reliable connection of the outgoing soft wire, reduce the risk of poor contact, and at the same time can stably connect the conductive busbar 2 in the wiring channel 13, simplifying the structure of the small busbar terminal.

[0043] The terminal block 1 of this technical solution is equipped with a grounding plate 5 at the bottom and a grounding hook 52 is set opposite to the guide rail hook 18. This allows the grounding protection of the small busbar terminal to be quickly realized when the terminal block 1 is connected to the guide rail. The installation is simple and avoids additional costs while improving safety and reliability based on the integrated grounding protection function.

[0044] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick-connect small busbar terminal with grounding protection, comprising a terminal block, the terminal block including an inlet and an outlet, characterized in that, The terminal block is provided with at least one wiring channel, which includes a positioning platform and partition walls on both sides of the positioning platform. The positioning platform has an inlet groove and an outlet hole. A conductive busbar is connected to the positioning platform. The conductive busbar narrows inward on both sides facing the inlet groove to form a limiting part. A wire clamping frame assembly is connected to the limiting part. A wire clamping channel is provided between the wire clamping frame assembly and the conductive busbar. The wire clamping frame assembly is movably connected in the inlet groove. A positioning hole is provided on the conductive busbar facing the outlet hole. A positioning fastener is connected to the conductive busbar. The positioning fastener passes through the positioning hole and is connected in the outlet hole. The bottom of the terminal block is provided with a guide rail hook and a positioning cavity. A grounding plate is fixedly connected in the positioning cavity. The grounding plate includes a mounting part and a grounding hook part. The grounding hook part is set facing the guide rail hook part. The mounting part extends to the outside of the terminal block.

2. A quick-connect small busbar terminal with grounding protection according to claim 1, characterized in that, The positioning cavity is provided with a clamping groove and a snap-fit ​​plate. The grounding piece includes a main body and a snap-fit ​​part. The main body is connected to the clamping groove. The snap-fit ​​part has a snap-fit ​​hole. The snap-fit ​​plate is connected to the snap-fit ​​hole. The grounding hook part and the snap-fit ​​part are both located on the side of the main body away from the conductive busbar.

3. A quick-connect small busbar terminal with grounding protection according to claim 2, characterized in that, There are two grounding hooks, which are arranged opposite each other.

4. A quick-connect small busbar terminal with grounding protection according to claim 2, characterized in that, The terminal block has a clearance groove, and the mounting part extends through the clearance groove to the outside of the terminal block.

5. A quick-connect small busbar terminal with grounding protection according to claim 1, characterized in that, The wire clamping frame assembly includes a wire clamping frame, a clamping pad, and a wire clamping fastener. The clamping pad includes a wire clamping part, a connecting part, and a plug-in part in sequence. The limiting part and the wire clamping part are both connected inside the wire clamping frame. The wire clamping fastener passes through the plug-in part in sequence and is connected to the wire clamping frame. The wire clamping frame is movably connected inside the inlet groove.

6. A quick-connect small busbar terminal with grounding protection according to claim 5, characterized in that, The plug-in part includes two limiting branches, and a fastening connection port is provided between the limiting branches. The wire clamping fastener is connected in the fastening connection port.

7. A quick-connect small busbar terminal with grounding protection according to claim 5, characterized in that, Both the side of the pressure line portion facing the limiting portion and the side of the limiting portion facing the pressure line portion are arc-shaped concave surfaces.

8. A quick-connect small busbar terminal with grounding protection according to any one of claims 1 to 7, characterized in that, A pressure pad is connected between the positioning fastener and the conductive bar.

9. A quick-connect small busbar terminal with grounding protection according to any one of claims 1 to 7, characterized in that, The grounding plate is formed by stamping and is made of galvanized steel.

10. A quick-connect small busbar terminal with grounding protection according to any one of claims 1 to 7, characterized in that, The depth of the inlet groove is 5mm to 8mm.

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