CN116365290A

CN116365290A - Terminal block with handle structure

Info

Publication number: CN116365290A
Application number: CN202111620141.XA
Authority: CN
Inventors: 吴上财
Original assignee: Dinkle M&e China Co ltd; Dinkle Enterprise Co Ltd
Current assignee: Dinkle M&e China Co ltd; Dinkle Enterprise Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2023-06-30

Abstract

The invention relates to a terminal block with a handle structure. The insulating seat is provided with a containing space, an inserting opening and a side opening, and a limit column and a pivoting part are formed in the containing space. The conductive terminal comprises a conductive body and a plurality of conductive pins, wherein the conductive body is positioned in the accommodating space, and the conductive pins penetrate out of the insulating seat. The elastic sheet comprises a joint arm, a bending section and a fixing section, wherein the joint arm is provided with an arc surface, the bending section is sleeved with a limit column, and the joint arm is suspended at one side of the insertion port. The pivot of the handle structure is combined with the pivot part so that the handle protrudes out of the insulating seat, and the pressing cam is abutted against the arc-shaped surface of the butt arm; therefore, the handle structure can avoid damage and has a labor-saving effect.

Description

Terminal block with handle structure

Technical Field

The present invention relates to a terminal block, and more particularly to a terminal block with a handle structure.

Background

The Terminal Block (Terminal Block) is an electrical connection device formed by combining elements such as an insulating base, a spring plate and a conductive Terminal, and is used for providing an operation platform for electrically connecting a plurality of wires. Specifically, the elastic sheet and the conductive terminal are arranged in the insulating seat, and the elastic sheet is pressed by a screwdriver or other external tools so as to facilitate the external lead to be inserted into the insulating seat and contact with the conductive terminal, thereby achieving wiring connection.

However, the use of a screwdriver or other tool to press the spring tab within the terminal block is inconvenient for the user. Therefore, some terminal blocks are provided with elastic handles to press the elastic sheets in the insulating base so as to assist the insertion and electrical connection of the cable. However, the elastic handle made of plastic has low structural strength, and is easily damaged by the pressing of the elastic sheet after long-term use, so that the failure rate and maintenance rate of the terminal block are improved, and further improvement is needed.

Disclosure of Invention

An objective of the present invention is to provide a terminal block with a handle structure, wherein the handle structure can slide smoothly relative to the spring plate and has a labor-saving effect, so as to avoid damage of the handle structure.

In order to achieve the above-mentioned objective, the present invention is a terminal block with a handle structure, which comprises an insulation base, a conductive terminal, a spring plate and a handle structure. The insulating seat is provided with a containing space, an inserting port communicated with the containing space and a side opening, and a limit column and a pivoting part are formed in the containing space. The conductive terminal comprises a conductive body and a plurality of conductive pins, wherein the conductive body is positioned in the accommodating space, and the conductive pins penetrate out of the insulating seat. The elastic sheet comprises a fastening arm, a bending section extending from the fastening arm and a fixing section connected with the bending section, the fastening arm is provided with an arc surface, the bending section is sleeved with a limit column, and the fastening arm is suspended at one side of the insertion opening. The handle structure comprises a handle, a pressing cam and a pivot, wherein the pivot is combined with the pivot joint part so that the handle protrudes out of the insulation seat, and the pressing cam abuts against the arc-shaped surface of the joint arm.

Optionally, the number of the insulating seats is plural, each insulating seat is formed with a plurality of bonding posts on the wall surface of the side opening, and adjacent insulating seats are connected in parallel through each bonding post.

Optionally, the insulating base has a pair of supporting walls, and the pair of supporting walls corresponds to the arrangement of the insertion opening and is located at opposite sides of the accommodating space.

Optionally, the conductive body includes a front conductive sheet, a rear conductive sheet, and a side conductive sheet connected between the front conductive sheet and the rear conductive sheet, where the front conductive sheet and the rear conductive sheet respectively abut against the pair of supporting walls.

Optionally, a convex column is formed on the insulating base, and the side conductive sheet is provided with a concave arc, and the concave arc is positioned on the convex column.

Optionally, the front conductive sheet has a bump, the fixing section of the elastic sheet has an opening, and the front conductive sheet and the elastic sheet are positioned by mutually buckling the bump and the opening; the rear conductive sheet is a U-shaped sheet, and each conductive pin is arranged on opposite sides of the rear conductive sheet in pairs.

Optionally, the joint arm is formed with a circular arc transition section at one side of the arc surface and facing the direction of the bending section.

Optionally, the handle structure further comprises a rod piece, and two ends of the rod piece are respectively connected with the handle and the pressing cam.

Optionally, the handle structure is formed with a pressing block, and the pressing cam and the pivot are arranged at the bottom edge of the pressing block.

Optionally, the relative distance between the press cam and the pivot is smaller than the relative distance between the handle and the pivot.

Compared with the prior structure, the handle knot of the terminal block with the handle structure comprises a pressing cam, and an arc-shaped surface is arranged on the butt joint arm of the elastic sheet; therefore, when the external force continuously acts on the handle and rotates, the pressing cam slides along the connecting arm and abuts against the arc surface, and a damping effect is generated between the arc surface and the pressing cam, so that the handle structure is prevented from being damaged due to instant rebound, and the failure rate and the maintenance rate of the terminal block are reduced. In addition, the press cam of the invention presses against the part of the butt joint arm which is closer to the bending section, so the free end of the butt joint arm has a longer force arm, thereby having the labor-saving effect. In addition, when the pressing cam is positioned on the arc-shaped surface of the elastic sheet and is in a self-locking state, the pressing cam can provide a user with wiring/wire taking actions, and can provide more coordinated, smooth and better operation feel on operation, thereby increasing the practicability on use.

Drawings

Fig. 1 is a schematic perspective view of a terminal block with a handle structure according to the present invention.

Fig. 2 is an exploded perspective view of the terminal block with the handle structure of the present invention.

Fig. 3 is a schematic diagram of the handle structure and the spring plate according to the present invention.

Fig. 4 is a combined cross-sectional view of the terminal block with the handle structure of the present invention.

Fig. 5 is a schematic view of the handle structure of the present invention subjected to external force to plug in a cable.

Fig. 6 is a positioning illustration of the handle structure of the present invention.

Fig. 7 is a schematic view of the terminal block of the present invention with the handle returned to its original position after plugging the cable.

Fig. 8 is a schematic view of another embodiment of a terminal block with a handle structure according to the present invention.

In the figure:

1, a terminal block with a handle structure; 2, a cable; 10, an insulating seat; 100, accommodating space; 101, inserting port; 102, a penetrating port; 103, side opening; 11, a limit column; 12, a pin joint part; 13, a convex column; 14, supporting walls; 15, a binding column; 20, a conductive terminal; a conductive body; 211, front conductive sheet; 2111, bump; 212, rear conductive sheet; 213 side conductive plates; 2130, concave arc; 22, a guide pin; 30, a spring plate; a receiving arm 31; 311, arc surface; 312, arc transition section; 32, bending section; 33, fixing the section; 330, opening holes; 40, a handle structure; 41, a handle; 42, pressing the cam; 43, pivot; 44, pole piece; 45, pressing a brake block; 50, a cover plate; a, self-locking angle.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.

Fig. 1 is a schematic perspective view of a terminal block with a handle structure according to the present invention. The invention relates to a terminal block 1 with a handle structure, which comprises an insulating base 10, a conductive terminal 20, a spring plate 30 and a handle structure 40. The spring plate 30 is coupled to the conductive terminal 20 and is disposed in the insulating base 10 together with the conductive terminal 20. The handle structure 40 is mounted on one side of the insulating base 10. The terminal block 1 having the handle structure will be described in more detail later.

Fig. 2 to 4 are respectively a perspective exploded view of the terminal block with a handle structure, a pressing schematic view of the handle structure and the spring plate, and a combined cross-sectional view of the terminal block with the handle structure. As shown in fig. 2, the insulating base 10 has a receiving space 100, an insertion opening 101 communicating with the receiving space 100, a plurality of (more than two) through-holes 102, and a side opening 103. The insertion opening 101 and the insertion openings 102 are provided on both sides of the insulating base 10 in a vertical direction. The side opening 103 is located on the other side surface of the insulating base 10 perpendicular to the insertion port 101.

In this embodiment, the insulating base 10 is formed with a limiting post 11, a pivot portion 12 and a protruding post 13 in the accommodating space 100. Further, the insulating holder 10 has a pair of support walls 14, the pair of support walls 14 being disposed corresponding to the insertion port 101 and located on opposite sides of the accommodating space 100. It should be noted that the insulating base 10 is formed with a plurality of coupling posts 15 on the wall surface of the side opening 102. Each of the coupling posts 15 is arranged to provide for positioning of adjacent insulative housings 10 when they are in parallel.

The conductive terminal 20 includes a conductive body 21 and a plurality of conductive pins 22. The conductive body 21 is positioned in the accommodating space 100, and the end of each conductive pin 22 passes through the insulating base 10 from each through hole 102. Specifically, the conductive body 21 includes a front conductive sheet 211, a rear conductive sheet 212, and a side conductive sheet 213 connected between the front conductive sheet 211 and the rear conductive sheet 212.

In more detail, the rear conductive sheet 212 is a U-shaped sheet. Each of the conductive pins 22 is disposed in pairs on opposite sides of the rear conductive sheet 212. In addition, the side conductive piece 213 is provided with a concave arc 2130, and the side conductive piece 213 is positioned on the insulating base 10 by the concave arc 2130 being snapped onto the boss 13.

Furthermore, the elastic sheet 30 comprises a joint arm 31, a bending section 32 extending from the joint arm 31, and a fixing section 33 connecting the bending section 32. The crimping arm 31 has an arcuate surface 311. The bending section 32 is sleeved with the limiting post 11 and positioned on the insulating base 10, so that the socket arm 31 is suspended on one side (below) of the insertion port 11. It should be noted that the fixing section 33 of the spring 30 has an opening 330, and the opening 330 is configured to position the spring 30.

The handle structure 40 includes a handle 41, a pressing cam 42 and a pivot 43. In this embodiment, the handle structure 40 further includes a lever 44 and a pressing block 45. Both ends of the lever piece 44 are respectively connected with the handle 41 and the pressing cam 42. The pressing cam 42 and the pivot 43 are provided at the bottom edge of the pressing block 45. Preferably, the handle structure 40 is integrally formed and interconnected.

Please refer to fig. 3 and fig. 4 simultaneously. The conductive terminal 20 is disposed in the insulating base 10, and the front conductive piece 211 and the rear conductive piece 212 respectively contact the pair of supporting walls 14 of the insulating base 10. In another embodiment of the present invention, the front conductive sheet 211 has a bump 2111. The front conductive piece 211 and the spring piece 30 are positioned by the protrusion 2111 and the opening 330 being engaged with each other.

Furthermore, the elastic sheet 30 is sleeved on the limiting post 11 through the bending section 32 and positioned on the insulating base 10, in addition, the handle structure 40 is pivoted to the pivot portion 12 through the pivot 43 and combined on the insulating base 10, and the handle 41 protrudes out of the insulating base 10.

Fig. 5 to 7 are schematic diagrams of the handle structure of the present invention, in which the handle structure is subjected to an external force to plug in the cable, the handle structure is positioned, and the handle returns to its original position after the cable is plugged in the terminal block. The terminal block 1 with the side pressure handle structure is used for inserting at least one cable 2. As shown in fig. 5, in actual use, an external force acts on the handle 41 to rotate the handle structure 40 about the pivot 43, so that the pressing cam 42 presses the arm 31 of the elastic piece 30.

It should be noted that, since the pressing cam 42 is pressed against the abutment arm 31 closer to the bending section 32, the free end of the abutment arm 31 has a longer arm, so that the elastic restoring force of the abutment arm 31 to the pressing cam 42 is relatively smaller.

In addition, since the relative distance between the push cam 42 and the pivot 43 is smaller than the relative distance between the handle 41 and the pivot 43, the rotational moment of the push cam 42 acting on the handle 31 is small, thereby reducing the force acting on the handle 41, and thereby achieving a labor-saving effect.

Referring to fig. 6, when an external force is continuously applied to the handle 41 to rotate the handle structure 40 about the pivot 43 in a direction away from the cable 2, the pressing cam 42 slides along the abutment arm 31 and abuts against the arc surface 311.

It should be noted that, when the pressing cam 42 is positioned on the arc-shaped surface 311, the end of the connecting arm 31 is separated from the rear conductive plate 212, so as to insert a cable 2 from the insertion port 101 into the insulating base 10, and stop against one side edge of the rear conductive plate 212 to connect the conductive body 21. Accordingly, the cable 2 is electrically connected to the conductive terminal 20.

It should be noted that the joint arm 31 is formed with a circular arc transition section 312 at one side of the arc surface 311 and toward the bending section 32. When the pressing cam 42 slides along the connecting arm 31 and passes through the arc transition section 312, the stress point of the pressing cam 42 acting on the connecting arm 31 passes through the self-locking transition line formed by the handle 41 and the elastic sheet 30. At this time, the handle structure 40 will rest on the arc surface 311 under the eccentric lever principle. The arc surface 311, the arc transition section 312 and the pivot 43 form a self-locking angle a therebetween.

Furthermore, the arc surface 311 and the pressing cam 42 have a damping effect, so that the handle structure 40 is prevented from rebounding instantaneously and being damaged, thereby facilitating the wire connection/disconnection operation and providing a more coordinated, smooth and better operation feeling.

Referring to fig. 7 again, after the cable 2 is completed to perform the wire connection/disconnection operation, the user can reversely apply force to the handle 41, so that the pressing cam 42 is separated from the arc surface 311 and presses the arm 31. At this time, the end of the connecting arm 31 will abut against the cable 2 due to the elastic restoring force of the elastic piece 30. Accordingly, the cable 2 is clamped by the elastic sheet 30 and positioned in the insulating base 10, and on the other hand, the pressing cam 42 slides along the joint arm 31 in the opposite direction and smoothly passes through the arc surface 311 and the arc transition section 312, so that the handle structure 40 returns to the original state.

Referring to fig. 8 again, another embodiment of the terminal block with a handle structure of the present invention is shown. In this embodiment, the number of the insulating holders 10 may be plural, and the conductive terminals 20, the spring plates 30 and the handle structure 40 are respectively disposed correspondingly. A plurality of binding posts 15 are arranged on the side surface of each insulating seat 10; and, the adjacent insulating bases 10 are connected in parallel through the connecting posts 15, thereby providing a plurality of cables for plugging.

It should be noted that the terminal block 1 with a handle structure of the present invention may further include a cover plate 50. The cover 50 covers one side of the insulating base 10 to avoid exposing the internal components.

The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.

Claims

1. A terminal block having a handle structure, comprising:

the insulation seat is provided with an accommodating space, an inserting port communicated with the accommodating space and an opening at one side, and a limit column and a pivoting part are formed in the accommodating space;

the conductive terminal comprises a conductive body and a plurality of conductive pins, the conductive body is positioned in the accommodating space, and each conductive pin penetrates out of the insulating seat;

the elastic sheet comprises a neck connecting arm, a bending section extending from the neck connecting arm and a fixing section connected with the bending section, the neck connecting arm is provided with an arc-shaped surface, the bending section is sleeved with the limit column, and the neck connecting arm is suspended at one side of the insertion port; and

the handle structure comprises a handle, a pressing cam and a pivot, wherein the pivot is combined with the pivoting part so that the handle protrudes out of the insulating seat, and the pressing cam abuts against the arc-shaped surface of the connecting arm.

2. The terminal block with handle structure according to claim 1, wherein the number of the insulating holders is plural, each insulating holder is formed with plural coupling posts on the wall surface of the side opening, and adjacent insulating holders are connected in parallel by each of the coupling posts.

3. The terminal block with a handle structure according to claim 1, wherein the insulating base has a pair of support walls which are disposed corresponding to the insertion opening and are located on opposite sides of the accommodation space.

4. The terminal block with a handle structure according to claim 3, wherein the conductive body comprises a front conductive sheet, a rear conductive sheet and a side conductive sheet connected between the front conductive sheet and the rear conductive sheet, the front conductive sheet and the rear conductive sheet respectively abutting the pair of supporting walls.

5. The terminal block with handle structure of claim 4, wherein said insulating base is formed with a boss, said side conductive strip is provided with a concave arc, said concave arc is positioned on said boss.

6. The terminal block with handle structure according to claim 4, wherein the front conductive sheet has a bump, the fixing section of the spring sheet has an opening, and the front conductive sheet and the spring sheet are positioned by the bump and the opening being fastened to each other; the rear conductive sheet is a U-shaped sheet, and each conductive pin is arranged on opposite sides of the rear conductive sheet in pairs.

7. A terminal block having a handle structure as in claim 1, wherein said arm is formed with a rounded transition at one side of said arcuate surface and toward said bend.

8. The terminal block with a handle structure according to claim 1, wherein the handle structure further comprises a lever piece, and both ends of the lever piece are respectively connected with the handle and the pressing cam.

9. The terminal block with handle structure according to claim 1, wherein the handle structure is formed with a pressing block, and the pressing cam and the pivot are disposed at the bottom edge of the pressing block.

10. The terminal block with handle structure according to claim 1, wherein a relative distance between the pressing cam and the pivot is smaller than a relative distance between the handle and the pivot.