A wiring terminal

Abstract

The application relates to a wiring terminal which comprises a shell, a break switch, a movable conducting sheet and a fixed conducting sheet, the movable conducting sheet is provided with a second shaft connecting part, a conducting part and a pressure receiving part, the second shaft connecting part is connected with the shell in a shaft connection mode; the break switch is provided with a first shaft connecting part and a break part, the first shaft connecting part is connected with the shell in a shaft connection mode, the break switch is fixed with a connecting plate, the connecting plate is provided with a driving protrusion; the shell is provided with a limiting block, the limiting block is connected with the shell in a sliding connection mode along the combined direction of the first shaft connecting part, a linkage structure is arranged between the break switch and the limiting block; a first limiting part is fixed on the surface of the limiting block in a protruding mode, the first limiting part always blocks the path of the pressure receiving part deviating from the fixed conducting sheet. The application can meet the insertion of a conducting wire with a larger diameter.

Description

Technical Field

[0001] This application relates to the field of wire connection structures, and in particular to a terminal block. Background Technology

[0002] The existing terminal block includes a housing, a switch, and a conductive component. The conductive component includes a fixed conductive plate and a movable conductive plate. The fixed conductive plate and the movable conductive plate are used to clamp the connecting wire to achieve wire conduction. The switch is used to drive the movable conductive plate to move, so as to switch between clamping and unclamping states.

[0003] A common type of switch is a toggle switch. The movable conductive piece is V-shaped, with its middle section connected to the housing shaft. One end of the movable conductive piece is the pressure end, and the other end is the conduction end used to abut against the fixed conductive piece. The middle section of the toggle switch is connected to the housing shaft, with one end being the toggle end and the other end being the pressure end.

[0004] The toggle switch is equipped with a connecting plate, and a drive protrusion is fixed on the connecting plate.

[0005] In use, by bending the end, the pressure end is driven to deflect in the positive direction. The pressure end presses against the pressure end of the movable conductive sheet, causing the movable conductive sheet to deflect and undergo elastic deformation. The conducting end of the movable conductive sheet then shifts to a state of tightly pressing against the fixed conductive sheet, thereby achieving the clamping of the wire.

[0006] When the pressure end deflects in the opposite direction, not only is the pressure on the movable conductive sheet released, but the driving protrusion on it also supports the pressure end of the movable conductive sheet as the pressure end deflects in the opposite direction, so that it moves further away from the fixed conductive sheet, thus realizing the release of the wire clamping.

[0007] Although the drive protrusion can support the pressure end of the movable conductive plate until the pressure end of the movable conductive plate abuts against the surface of the pressure end of the toggle switch, at this time, due to the limited deflection angle of the pressure end, the upward deflection angle of the conducting end of the movable conductive plate is limited, which leads to a limited gap between the conducting end and the fixed conductive plate, making it difficult to accommodate the insertion of wires with larger diameters. Summary of the Invention

[0008] To accommodate the insertion of larger diameter wires, this application provides a terminal block.

[0009] The terminal block provided in this application adopts the following technical solution: A terminal block includes a housing, a toggle switch, a movable conductive plate, and a fixed conductive plate. The movable conductive plate has a second shaft connection portion, a conducting portion, and a pressure-receiving portion, with the second shaft connection portion axially connected to the housing. The toggle switch has a first shaft connection portion and a toggle portion, with the first shaft connection portion axially connected to the housing. The toggle switch is fixed with a connecting plate, and the connecting plate has a driving protrusion. The housing has a limiting block, which is slidably connected to the housing along the combination direction of the first shaft connection portion. A linkage structure is provided between the toggle switch and the limiting block. When the toggle switch deflects in the forward direction, the limiting block slides outward to prevent the pressure-receiving portion of the movable conductive plate from shifting upward. When the toggle switch deflects in the reverse direction, the limiting block slides inward to engage with the movable conductive plate. The conductive sheet is in a state of misalignment of the pressure-receiving portion; the surface of the limiting block is fixed with a first limiting portion protruding from it, which always blocks the path of the pressure-receiving portion away from the fixed conductive sheet; when the driving protrusion causes the pressure-receiving portion to shift to abut against the first limiting portion, the pressure-receiving portion is located on the side away from the fixed conductive sheet of the line connecting the first shaft portion and the second shaft portion; the toggle switch is fixed with a pressure-applying column, and the pressure-receiving portion of the movable conductive sheet is provided with a through slot. When the toggle switch is deflected in the forward direction, the pressure-applying column abuts against the outer surface of the pressure-receiving portion to force the movable conductive sheet to deflect downward until the limiting block slides outward to abut against the outer surface of the pressure-receiving portion, and the pressure-applying column moves to the inner side of the pressure-receiving portion through the through slot.

[0010] By adopting the above technical solution, firstly, when the driving protrusion causes the pressure-receiving part to deflect to abut against the first limiting part, the movable conductive sheet is in a state of being released from clamping. By limiting the maximum deflection position of the pressure-receiving part, the maximum deflection position of the conductive part is limited, so that there is a large gap between the conductive part and the fixed conductive sheet. This large gap makes it easier for large-diameter wires to pass through, so as to facilitate the clamping of large-diameter wires, and has strong applicability.

[0011] Secondly, it requires clamping the wire and deflecting the switch a certain distance in the forward direction. The pressure post on the switch presses against the pressure receiving part, forcing the movable conductive piece to deflect in the forward direction until the conductive part is pressed against the fixed conductive piece. At the same time, the linkage structure is triggered, and the limit block slides outward to press against the pressure receiving part to prevent the pressure receiving part from deflecting in the reverse direction, thus maintaining the state of the conductive part pressing against the fixed conductive piece. Then, the switch is deflected in the forward direction again, and the pressure post enters the inside of the pressure receiving part through the through slot. That is, the pressure post and the pressure receiving part have no contact relationship. In this way, the contact between the conductive part and the fixed conductive piece is completed before the switch travel is finished, which is faster and reduces the force required to continuously deflect the switch in the forward direction, making it more labor-saving.

[0012] Thirdly, when it is necessary to release the clamped wire, the switch is deflected in the opposite direction. Through the linkage structure, the limit block slides inward to instantly release the restriction on the pressure part. Under the elastic force of the movable conductive sheet, the movable conductive sheet can quickly reset.

[0013] Optionally, the end of the pressure-receiving part extends to provide a limiting section, the limiting section and the pressure-receiving part have an included angle, and the surface of the limiting block protrudes and is fixed with a second limiting part, the second limiting part and the first limiting part have an included angle, the second limiting part is used for the limiting section to abut against.

[0014] By adopting the above technical solution, firstly, by setting a second limiting part, the second limiting part and the first limiting part can jointly limit the pressure-bearing part and the limiting segment, thereby greatly improving the limiting effect. Furthermore, by setting an included angle between the second limiting part and the first limiting part, the pressure-bearing part and the limiting segment can be limited within the included angle area, further improving the limiting effect.

[0015] Optionally, the linkage structure includes a cylindrical slider and a return spring. The slider is fixed to the toggle switch. One end of the return spring is fixedly connected to the housing, and the other end is fixedly connected to the limiting block. The surface of the limiting block is provided with a sliding groove, which includes an inner sliding inclined section, a straight section, an outer sliding vertical section, and an outer sliding inclined section. One end of the straight section is connected to the end of the inner sliding inclined section. One end of the outer sliding vertical section is connected to the beginning of the straight section through a curved section. The other end of the outer sliding vertical section is connected to the beginning of the inner sliding inclined section through the outer sliding inclined section. When the toggle switch actuates the slider... When the block slides within the inner sliding inclined section, the slider drives the limiting block to slide inward, and the return spring changes from a tension state to a pressure state. When the toggle switch drives the slider to slide within the straight section, the position of the limiting block remains unchanged, and the return spring remains in a pressure state. When the toggle switch deflects in the opposite direction, the slider first slides within the straight section, and under the pressure of the return spring, the slider passes through the curved section and enters the outer sliding vertical section, so that the limiting block slides outward quickly. When the slider slides from the outer sliding vertical section into the outer sliding inclined end until it is located at the beginning of the inner sliding inclined section, the limiting block slides outward slowly, and the return spring changes from a pressure state to a tension state.

[0016] By adopting the above technical solution, and by setting the specific shape of the slide groove and the corresponding cooperation of the return spring, the limit block can slide inward at normal speed, so as to allow time for the drive protrusion to support the pressure part, and also realize the limit block to slide outward quickly, so as to ensure that when the pressure column presses the pressure part to an appropriate state, the lower limit block can quickly "take over" the pressure column to continue to press the pressure part. The switching of the tension and pressure of the return spring can not only improve the speed of the limit block's rapid outward sliding, but also enable the slider to switch within the bending section, that is, to ensure that the slider can enter the corresponding track when moving in the forward and reverse directions.

[0017] Optionally, the groove wall of the through-hole extends toward the guide portion with a first curved edge.

[0018] By adopting the above technical solution, the pressure column can enter the outer side of the pressure-bearing part from the inside of the pressure-bearing part, so as to facilitate the next pressure.

[0019] Optionally, the inner wall of the housing is fixed with a first connecting post, the first shaft connection part is axially connected with the first connecting post, the outer peripheral surface of the first connecting post is provided with a plurality of circumferentially arranged tooth grooves, the limiting block is provided with a through hole for the first connecting post to pass through, and the inner wall of the through hole is provided with protruding teeth that mesh with the tooth grooves.

[0020] By adopting the above technical solution, the angle of the limiting block can be changed through the cooperation of the convex teeth and different tooth grooves, thereby changing the pressing position between the end of the limiting block and the pressure part, so as to change the degree of deformation of the movable conductive sheet and adapt to the requirements of different wire clamping forces.

[0021] Optionally, the middle part of the pressure-bearing portion is recessed with an arc segment facing the guiding portion, and the surface of the arc segment is used for the end of the limiting block to be pressed against.

[0022] By adopting the above technical solution, the contact area for pressure resistance can be increased, thereby improving the pressure resistance effect.

[0023] Optionally, the arc segment is a stamped wave spring segment, and the end of the limiting block is provided with a protrusion that engages with the gap of the wave spring segment.

[0024] By adopting the above technical solution and setting a wave spring section, the arc section has a large possibility of elastic deformation without the snapping of the convex strip. Therefore, it is convenient for the end of the limiting block to press laterally. Furthermore, after the limiting block has completely slid outward, the rigidity of the arc section can be increased by setting the gap between the convex strip and the wave spring section to improve the pressing effect.

[0025] Optionally, a second connecting post is fixed to the inner wall of the housing. Two movable conductive plates are provided, and the second shaft connection portions of the two movable conductive plates are simultaneously shaft-connected to the second connecting post. The conductive portions of the two movable conductive plates have an included angle, and both conductive portions are used to abut against the surface of the fixed conductive plate. The pressure-receiving portions of the two movable conductive plates are arranged side by side, and the wave spring segments of the two pressure-receiving portions are interlocked. The connecting plate, driving protrusion, limiting block, and pressure post are all symmetrically arranged along the axial direction of the first connecting post. Two sliders are provided, each corresponding to one of the two limiting blocks. The surface of the fixed conductive plate is provided with multiple V-grooves.

[0026] By adopting the above technical solution and setting a V-groove, the contact area between the wire and the fixed conductive sheet is increased under the pressure of the conductive part, thereby increasing the conductivity.

[0027] Furthermore, by setting up dual movable conductive plates, multi-point compression of the wires is achieved, thereby reducing the occurrence of loose connections. The symmetrically arranged connecting plate, driving protrusion, limiting block, and pressure-applying column are used to apply pressure and release pressure on the two movable conductive plates respectively.

[0028] Optionally, the radius of curvature of the arc segment of one of the active conductive sheets gradually decreases from both sides toward the middle.

[0029] By adopting the above technical solution, and by setting the curvature radius of the arc segment to vary, when the limiting block slides outward, the end of the limiting block will abut against the surface of the arc segment. The sliding force is divided into a component that forces the arc segment to move downward through the surface of the arc segment, thereby forcing the pressure part to deflect downward, increasing the deformation degree of the movable conductive sheet, thereby increasing the contact force between the movable conductive sheet with a small included angle and the wire, so that the contact force of the two movable conductive sheets is more balanced, thereby improving the clamping effect on the wire.

[0030] Optionally, the surface of one end of the limiting block is set as an arc surface, the radius of curvature of the arc surface is greater than the radius of curvature of the corresponding arc segment, and the arc surface is higher than the arc segment.

[0031] By adopting the above technical solution, the radius of curvature of the arc surface is limited to achieve point contact between the arc surface and the wave spring segment, thereby reducing friction. Furthermore, the contact point changes from both sides to the middle, gradually forcing the arc segment to move downward, which is more gentle and improves the downward deflection effect of the pressure part.

[0032] In summary, this application includes at least one of the following beneficial technical effects: 1. By limiting the maximum deflection position of the pressure-bearing part, the maximum deflection position of the conducting part is also limited, so that there is a large gap between the conducting part and the fixed conductive sheet, which is convenient for clamping large-diameter wires. Furthermore, through the cooperation of the pressure-applying column and the limiting block, the clamping can be quickly released and the effort can be reduced. 2. By setting the specific shape of the slide groove and the corresponding cooperation of the return spring, the normal speed of the limit block sliding inward and the rapid speed of the limit block sliding outward can be realized. This ensures that when the pressure column presses the pressure part to an appropriate state, the lower limit block can quickly "take over" the pressure column to continue pressing the pressure part. The switching of the tension and pressure of the return spring can not only improve the rapid speed of the limit block sliding outward, but also enable the slider to switch within the bending section, that is, ensure that the slider can enter the corresponding track when moving in the forward and reverse directions. 3. By setting up dual movable conductive plates, multi-point compression of the wires can be achieved, thereby reducing the occurrence of loose wire connections. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the terminal assembly in Embodiment 1.

[0034] Figure 2 This is a schematic diagram of the internal structure of the wiring terminals in Embodiment 1.

[0035] Figure 3 This is a schematic diagram of the wiring terminal in the wire clamping state in Embodiment 1.

[0036] Figure 4 This is a schematic diagram of the structure of the active conductive sheet in Example 1.

[0037] Figure 5 This is a schematic diagram of the toggle switch in Example 1.

[0038] Figure 6 This is a front view of the convex arc surface of the limiting block in Embodiment 1.

[0039] Figure 7 This is a schematic diagram of the wiring terminal in Embodiment 1 in the state of wire release.

[0040] Figure 8 This is a schematic diagram of the internal structure of the wiring terminals in Embodiment 2.

[0041] Figure 9 This is a schematic diagram of the structure of the dual active conductive sheet in Example 2.

[0042] Figure 10 This is a cross-sectional view of the arc segment of the active conductive sheet in Example 2.

[0043] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Toggle switch; 3. Limit block; 4. Movable conductive sheet; 5. Fixed conductive sheet; 10. Terminal block; 11. Mounting housing; 12. Side cover; 13. Insertion port; 14. Extension port; 15. First connecting post; 151. Gear; 16. Second connecting post; 17. Pad; 21. Toggle part; 211. Concave arc surface; 22. Connecting plate; 221. Clearance groove; 23. Drive protrusion; 24. Pressure post; 31. Pressing end; 32. Through. Hole; 231, convex tooth; 33, convex arc surface; 34, first limiting part; 35, second limiting part; 41, conducting part; 42, second shaft connection part; 43, pressure-bearing part; 431, arc segment; 432, through groove; 433, first curved edge; 434, limiting segment; 51, V-groove; 52, pin; 61, slider; 62, return spring; 631, inner sliding inclined segment; 632, straight segment; 633, outer sliding vertical segment; 634, outer sliding inclined segment; 635, curved segment. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0045] Embodiment 1 of this application discloses a terminal assembly.

[0046] Reference Figure 1 and Figure 2 The terminal assembly includes a wiring terminal 10, which can be used individually. In this embodiment, the terminal assembly is composed of multiple wiring terminals 10. The wiring terminal 10 includes a housing 1, a toggle switch 2, a movable conductive sheet 4, and a fixed conductive sheet 5.

[0047] The housing 1 serves as the mounting carrier for the toggle switch 2, the movable conductive plate 4, and the fixed conductive plate 5. The housing 1 is provided with an insertion port 13 for inserting wires and an extension port 14 for the pins 52 on the fixed conductive plate 5 to extend out. The pins 52 of each terminal 10 can be arranged on the same side or staggered.

[0048] The housing 1 includes a mounting shell 11 and a side cover 12. The mounting shell 11 has a side opening for the toggle switch 2, the movable conductive plate 4 and the fixed conductive plate 5 to enter the interior of the mounting shell 11 for easy installation.

[0049] When multiple terminals 10 are combined into a terminal assembly, in order to further simplify the structure, the mounting shell 11 of an adjacent terminal 10 can be used as a side cover 12 of the terminal 10, and the mounting shell 11 of the terminal 10 can be used as a side cover 12 of another adjacent terminal 10.

[0050] like Figure 2As shown, the fixed conductive sheet 5 is installed inside the housing 1, and the fixed conductive sheet 5 is located on one side of the insertion port 13. The surface of the fixed conductive sheet 5 is provided with a plurality of V-shaped grooves 51. The V-shaped grooves 51 extend along the direction perpendicular to the inner wall of the housing 1, and each V-shaped groove 51 is arranged at intervals along the direction away from the insertion port 13.

[0051] like Figure 2 , Figure 3 As shown, a second connecting post 16 is vertically fixed to the inner wall of the housing 1. The movable conductive sheet 4 is V-shaped and has a second shaft connection part 42, a conducting part 41 and a pressure receiving part 43. The second shaft connection part 42 serves as the middle part of the movable conductive sheet 4. The second shaft connection part 42 is axially connected to the second connecting post 16 so that the movable conductive sheet 4 can deflect relative to the housing 1 with the second shaft connection part 42 as the center. The shaft connection position is located above the fixed conductive sheet 5.

[0052] like Figure 2 As shown, a pad 17 protrudes from the inner wall of the mounting housing 11, and the side of the pressure-bearing part 43 abuts against the surface of the pad 17, so that a clearance gap is formed between the side of the pressure-bearing part 43 and the inner wall of the mounting housing 11.

[0053] like Figure 3 , Figure 4 As shown, the middle part of the pressure-bearing part 43 is recessed towards the guide part 41 with an arc segment 431. The arc segment 431 is a stamped wave spring segment with relatively dense gaps. The end of the pressure-bearing part 43 extends with a limiting segment 434, and there is an angle between the limiting segment 434 and the pressure-bearing part 43.

[0054] like Figure 2 , Figure 3 As shown, the toggle switch 2 has a first shaft connection (not shown in the figure) and a toggle part 21. The toggle part 21 protrudes from the first shaft connection along the direction perpendicular to the inner wall of the housing 1. A first connecting post 15 is vertically fixed to the inner wall of the housing 1. The first shaft connection is axially connected to the first connecting post 15. The toggle part 21 is exposed on the outside of the housing 1 to facilitate toggle operation. In order to facilitate toggle in both directions, the toggle part 21 can be set as a pointed spindle shape. At the same time, anti-slip structures, such as anti-slip protrusions, can be provided on both sides of the toggle part 21 to increase the toggle friction.

[0055] Furthermore, a connecting plate 22 is fixed to the first shaft connection portion. The connecting plate 22 is offset from the pressure-receiving portion 43 of the movable conductive sheet 4. A pressure-applying column 24 is vertically fixed on the connecting plate 22. The deflection trajectory of the pressure-applying column 24 interferes with the outer surface of the pressure-receiving portion 43 (the outer surface is the surface of the pressure-receiving portion 43 that is away from the conductive portion 41). The pressure-receiving portion 43 of the movable conductive sheet 4 is provided with a through groove 432. The through groove 432 is located between the second shaft connection portion 42 and the arc segment 431. The groove wall of the through groove 432 extends toward the conductive portion 41 with a first curved edge 433.

[0056] A drive protrusion 23 is fixed on the connecting plate 22. The drive protrusion 23 is positioned away from the bending part 21 relative to the pressure post 24. The drive protrusion 23 can be a protrusion or a protrusion post. The inner surface of the pressure part 43 (the inner surface is the surface of the pressure part 43 facing the guide part 41) blocks the deflection path of the drive protrusion 23.

[0057] like Figure 3 , Figure 5 As shown, a limiting block 3 is also provided inside the housing 1. Specifically, one end of the limiting block 3 is set as a pressing end 31. The pressing end 31 is an arc surface, which is used to cooperate with the arc segment 431 of the pressure-receiving part 43. Furthermore, a protrusion is fixed on the surface of the arc surface to fit into the gap of the wave spring segment.

[0058] A through hole 32 is provided at the part of the limiting block 3 away from the pressing end 31. The first connecting post 15 is inserted through the through hole 32. The outer circumferential surface of the first connecting post 15 is provided with a plurality of circumferentially arranged tooth grooves 151. The inner wall of the through hole 32 is provided with protruding teeth 231 that mesh with the tooth grooves 151. That is, through the cooperation of the protruding teeth 231 and the tooth grooves 151, the circumferential limiting of the limiting block 3 and the sliding movement along the axial direction of the first connecting post 15 are realized.

[0059] One side of the limiting block 3 is provided as an outwardly convex arc surface 33, the curvature center of which is located on the axis of the first connecting column 15. One side of the turning part 21 is provided as an inwardly concave arc surface 211, which fits against the outwardly convex arc surface 33 of the limiting block 3, so that the turning part 21 will not interfere with the limiting block 3 when it deflects.

[0060] The surface of the limiting block 3 is fixed with a first limiting part 34 and a second limiting part 35 protruding from it. The second limiting part 35 and the first limiting part 34 have an included angle. The first limiting part 34 is always blocked from the path of the pressure part 43 deflecting away from the fixed conductive sheet 5, and the second limiting part 35 is always blocked from the path of the limiting segment 434 deflecting away from the fixed conductive sheet 5.

[0061] A linkage structure is provided between the toggle switch 2 and the limit block 3. When the toggle switch 2 deflects in the forward direction, the limit block 3 slides outward to prevent the pressure part 43 of the movable conductive sheet 4 from shifting upward. When the toggle switch 2 deflects in the reverse direction, the limit block 3 slides inward to be misaligned with the pressure part 43 of the movable conductive sheet 4.

[0062] Specifically, such as Figure 5 , Figure 6As shown, the linkage structure includes a cylindrical slider 61 and a return spring 62. The slider 61 is fixed on the concave arc surface 211 of the toggle part 21. The return spring 62 is parallel to the axis of the first connecting post 15. One end of the return spring 62 is fixedly connected to the housing 1, and the other end of the return spring 62 is fixedly connected to the limit block 3. The connecting plate 22 has an arc-shaped clearance groove 221 for avoiding the return spring 62, that is, the connecting plate 22 will not interfere with the return spring 62 when it deflects with the toggle switch 2.

[0063] like Figure 6 As shown, the surface of the limiting block 3 is provided with a sliding groove, which includes an inner sliding inclined section 631, a straight section 632, an outer sliding vertical section 633, and an outer sliding inclined section 634. One end of the straight section 632 is connected to the end of the inner sliding inclined section 631, one end of the outer sliding vertical section 633 is connected to the beginning of the straight section 632 through a curved section 635, and the other end of the outer sliding vertical section 633 is connected to the beginning of the inner sliding inclined section 631 through the outer sliding inclined section 634.

[0064] When it is necessary to release the wire clamp, the lever 21 drives the lever switch 2 to deflect in the opposite direction. The lever switch 2 drives the slider 61 to slide within the inner sliding inclined section 631, that is, to move from the beginning to the end of the inner sliding inclined section 631. At this time, the slider 61 drives the limiting block 3 to slide inward, and the return spring 62 changes from a tension state to a pressure state (the tension state is when the return spring 62 pulls the limiting block 3 to move away from the pressure part 43, and the pressure state is when the return spring 62 forces the limiting block 3 to move towards the pressure part 43). In this way, the limiting block 3 slides inward to a state that is misaligned with the pressure part 43 of the movable conductive sheet 4. At this time, the limiting block 3 releases the pressure on the pressure part 43, and the elastic force of the movable conductive sheet 4 will cause the pressure part 43 to deflect upward. At the same time, the pressure column 24 also enters the outside of the pressure part 43 through the through groove 432.

[0065] When switch 2 is continuously deflected in the opposite direction, the slider 61 continues to slide within the straight section 632 until it reaches the beginning of the straight section 632. During this period, the drive protrusion 23 abuts against the inner surface of the pressure-receiving part 43 to support the pressure-receiving part 43 to shift upward, causing the pressure-receiving part 43 to shift to abut against the first limiting part 34. The limiting section 434 abuts against the second limiting part 35 (see reference). Figure 7 At this point, the movable conductive piece 4 completely releases its grip on the wire.

[0066] Furthermore, at this time, the pressure-bearing part 43 is located on the side away from the fixed conductive sheet 5 of the line connecting the first shaft connection part and the second shaft connection part 42. In this way, the pressure-bearing part 43 is in the maximum deflection position, and the conductive part 41 is also in the maximum deflection position, so that there is a large gap between the conductive part 41 and the fixed conductive sheet 5, so as to facilitate the subsequent clamping of large-diameter wires.

[0067] When it is necessary to clamp the wire, the toggle switch 2 is deflected in the forward direction by the toggle part 21. The toggle switch 2 causes the slider 61 to slide within the straight section 632 (from the end to the beginning of the straight section 632). At this time, the pressure post 24 abuts against the outer surface of the pressure-receiving part 43 to force the movable conductive sheet 4 to deflect downward. At this time, the pressure-receiving part 43 is pressed to a state where it can be "taken" by the limiting block 3. Then, the toggle part 21 is deflected in the forward direction, and the slider 61 enters the outer sliding vertical section 63 through the curved section 635. 3 (Since the return spring 62 is under pressure, the slider 61 can only pass through the curved section 635 instead of the inner sliding inclined section 631). The return spring 62 restores its elasticity, forcing the limit block 3 to slide outward until the pressing end 31 of the limit block 3 is located inside the arc section 431, so as to smoothly take over the pressing of the pressure column 24. At this time, the pressure column 24 is also located inside the pressure part 43 through the through groove 432. That is, when the switch 2 is turned in the forward direction and then moved, the pressure column 24 will no longer press against the pressure part 43.

[0068] Continue to deflect the switch 2 in the forward direction. The slider 61 slides within the outer sliding inclined section 634. The limiting block 3 continues to slide outward to increase the contact area with the arc section 431. As the slider 61 slides from the outer sliding vertical section 633 into the outer sliding inclined end until it reaches the beginning of the inner sliding inclined section 631, the limiting block 3 slides outward slowly. The return spring 62 changes from a pressure state to a tension state so that when the slider 61 enters the beginning of the inner sliding inclined section 631 from the outer sliding inclined section 634, the tension of the return spring 62 can pull the limiting block 3, so that the slider 61 will not re-enter the outer sliding inclined section 634 when deflecting in the forward direction, but will only start sliding from the inner sliding inclined section 631.

[0069] Example 2 The difference between Example 2 and Example 1 is that, as Figure 8 , Figure 9 As shown, there are two movable conductive plates 4. The second shaft connection part 42 of the two movable conductive plates 4 are simultaneously connected to the second connecting post 16. The conductive part 41 of the two movable conductive plates 4 have an included angle. The two conductive parts 41 are used to abut against the surface of the fixed conductive plate 5. The two conductive parts 41 are arranged to overlap along the axial direction of the insertion port 13. The pressure-receiving parts 43 of the two movable conductive plates 4 are arranged side by side along the axial direction of the first connecting post 15. Furthermore, the arc segments 431 (wave spring segments) of the two pressure-receiving parts 43 are interlocked with each other, and there is an interlocking gap between the wave spring segments of the two pressure-receiving parts 43.

[0070] like Figure 10 As shown, the radius of curvature of the arc segment 431 of the conductive part 41 away from the insertion port 13 gradually decreases from both sides in the width direction toward the middle.

[0071] like Figure 8 , Figure 9As shown, the connecting plate 22, the driving protrusion 23, the limiting block 3, and the pressure column 24 are all symmetrically arranged along the axis of the first connecting column 15. There are two sliders 61, each corresponding to one of the two limiting blocks 3. That is, the symmetrically arranged limiting blocks 3, driving protrusion 23, and pressure column 24 control the clamping and unclamping of the two movable conductive sheets 4 respectively.

[0072] Furthermore, the radius of curvature of the arc surface of the pressing end 31 of the limiting block 3 is greater than the radius of curvature of the corresponding arc segment 431, and the arc surface is higher than the arc segment 431.

[0073] First, by setting up double movable conductive plates 4, multi-point compression of the wires is achieved, thereby reducing the occurrence of wire disconnection.

[0074] Secondly, by changing the radius of curvature of the arc segment 431 of the movable conductive piece 4 away from the insertion port 13 through the change of the radius of curvature of the conductive part 41 away from the insertion port 13, when the limiting block 3 slides outward, the end of the limiting block 3 will abut against the surface of the arc segment 431. This sliding force is divided into a component force through the surface of the arc segment 431 that forces the arc segment 431 to move downward, thereby forcing the pressure part 43 to deflect downward, so as to increase the degree of deformation of the movable conductive piece 4, thereby increasing the contact force of the movable conductive piece 4 with the wire at the small angle, so as to make the contact force of the two movable conductive pieces 4 more balanced, thereby improving the clamping effect on the wire.

[0075] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A terminal block, characterized in that: The device includes a housing (1), a toggle switch (2), a movable conductive plate (4), and a fixed conductive plate (5). The movable conductive plate (4) has a second shaft connection (42), a conducting part (41), and a pressure receiving part (43). The second shaft connection (42) is axially connected to the housing (1). The toggle switch (2) has a first shaft connection and a toggle part (21). The first shaft connection is axially connected to the housing (1). The toggle switch (2) is fixed with a connecting plate (22). The connecting plate (22) is provided with a driving protrusion (23). The housing (1) is provided with a limiting block (3), which is slidably connected to the housing (1) along the combination direction of the first shaft connection. A linkage structure is provided between the toggle switch (2) and the limiting block (3). When the toggle switch (2) deflects in the forward direction, the limiting block (3) slides outward to prevent the pressure part (43) of the movable conductive sheet (4) from shifting upward. When the toggle switch (2) deflects in the reverse direction, the limiting block (3) slides inward to be in contact with the movable conductive sheet (4). The pressure-bearing part (43) is misaligned; a first limiting part (34) is fixedly protruding from the surface of the limiting block (3), and the first limiting part (34) always blocks the path of the pressure-bearing part (43) away from the fixed conductive sheet (5); when the driving protrusion (23) drives the pressure-bearing part (43) to deflect to abut against the first limiting part (34), the pressure-bearing part (43) is located away from the fixed conductive sheet (5) on the line connecting the first shaft connection part and the second shaft connection part (42). On one side; the toggle switch (2) is fixed with a pressure column (24), and the pressure-receiving part (43) of the movable conductive sheet (4) is provided with a through slot (432). When the toggle switch (2) is deflected in the positive direction, the pressure column (24) abuts against the outer surface of the pressure-receiving part (43) to force the movable conductive sheet (4) to deflect downward until the limiting block (3) slides outward to abut against the outer surface of the pressure-receiving part (43). The pressure column (24) moves to the inner side of the pressure-receiving part (43) through the through slot (432).

2. The terminal block according to claim 1, characterized in that: The end of the pressure-bearing part (43) extends to provide a limiting section (434), and there is an angle between the limiting section (434) and the pressure-bearing part (43). A second limiting part (35) is protruding and fixed on the surface of the limiting block (3). There is an angle between the second limiting part (35) and the first limiting part (34). The second limiting part (35) is used to be abutted by the limiting section (434).

3. The terminal block according to claim 1 or 2, characterized in that: The linkage structure includes a cylindrical slider (61) and a return spring (62). The slider (61) is fixed to the toggle switch (2). One end of the return spring (62) is fixedly connected to the housing (1), and the other end of the return spring (62) is fixedly connected to the limiting block (3). The surface of the limiting block (3) is provided with a sliding groove, which includes an inner sliding inclined section (631), a straight section (632), an outer sliding vertical section (633), and an outer sliding inclined section (634). One end of the straight section (632) is connected to the end of the inner sliding inclined section (631). One end of the outer sliding vertical section (633) is connected to the beginning of the straight section (632) through a curved section (635). The other end of the outer sliding vertical section (633) is connected to the beginning of the inner sliding inclined section (631) through the outer sliding inclined section (634). When the toggle switch (2) drives the slider... (61) When sliding within the inner inclined section (631), the slider (61) drives the limiting block (3) to slide inward, and the return spring (62) changes from a tension state to a pressure state; when the toggle switch (2) drives the slider (61) to slide within the straight section (632), the position of the limiting block (3) remains unchanged, and the return spring (62) remains in a pressure state; when the toggle switch (2) deflects in the opposite direction, the slider (61) 1) First slide in the straight section (632), and under the pressure of the return spring (62), the slider (61) passes through the curved section (635) and enters the outer sliding vertical section (633) so that the limiting block (3) slides out quickly. The slider (61) slides from the outer sliding vertical section (633) into the outer sliding inclined end until it is located at the beginning of the inner sliding inclined section (631). Then the limiting block (3) slides out slowly, and the return spring (62) changes from the pressure state to the tension state.

4. The terminal block according to claim 3, characterized in that: The groove wall of the through groove (432) extends toward the guide portion (41) with a first curved edge (433).

5. The terminal block according to claim 3, characterized in that: The inner wall of the housing (1) is fixed with a first connecting post (15), the first shaft connection part is shaft connected to the first connecting post (15), the outer peripheral surface of the first connecting post (15) is provided with a plurality of circumferentially arranged tooth grooves (151), the limiting block (3) is provided with a through hole (32) for the first connecting post (15) to pass through, and the inner wall of the through hole (32) is provided with a protruding tooth (231) that meshes with the tooth groove (151).

6. The terminal block according to claim 5, characterized in that: The middle part of the pressure-bearing part (43) is recessed towards the conduction part (41) with an arc segment (431), the surface of which is used for the end of the limiting block (3) to be pressed.

7. The terminal block according to claim 6, characterized in that: The arc segment (431) is a stamped wave spring segment, and the end of the limiting block (3) is provided with a protrusion that fits into the gap of the wave spring segment.

8. The terminal block according to claim 7, characterized in that: The inner wall of the housing (1) is fixed with a second connecting post (16). There are two movable conductive plates (4). The second shaft connection part (42) of the two movable conductive plates (4) is simultaneously connected to the second connecting post (16). The conducting part (41) of the two movable conductive plates (4) has an included angle. The two conducting parts (41) are used to abut against the surface of the fixed conductive plate (5). The pressure-bearing parts (43) of the two movable conductive plates (4) are arranged side by side. The wave spring segments of the two pressure-bearing parts (43) are interlocked. The connecting plate (22), the driving protrusion (23), the limiting block (3), and the pressure column (24) are all symmetrically arranged along the axial direction of the first connecting post (15). There are two sliders (61) and they are respectively arranged corresponding to the two limiting blocks (3). The surface of the fixed conductive plate (5) is provided with multiple V-shaped grooves (51).

9. The terminal block according to claim 8, characterized in that: The radius of curvature of the arc segment (431) of one of the active conductive sheets (4) gradually decreases from both sides toward the middle.

10. The terminal block according to claim 9, characterized in that: The end surface of one of the limiting blocks (3) is set as an arc surface, the radius of curvature of the arc surface is greater than the radius of curvature of the corresponding arc segment (431), and the arc surface is higher than the arc segment (431).

Images