CN113659358A

CN113659358A - Tool-free terminal block

Info

Publication number: CN113659358A
Application number: CN202010396650.8A
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: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-11-16

Abstract

The invention relates to a tool-free terminal block, which comprises an insulating seat, a turning piece, a conductive terminal and a clamping elastic sheet, wherein the insulating seat is internally provided with a containing cavity and externally provided with a slot communicated with the containing cavity; the turning piece is pivoted on the insulating base; the conductive terminal is fixed at the bottom of the slot; the clamping elastic sheet is accommodated in the accommodating cavity and is arranged above the conductive terminal, the clamping elastic sheet extends to form a movable elastic arm which is abutted against the conductive terminal and seals the slot, and the movable elastic arm further extends to form a linkage rod which is fixedly connected to the turning piece and can move along with the turning piece; when the turning piece rotates to a release position, the linkage rod is pulled by the turning piece to drive the movable elastic arm to be far away from the conductive terminal and open the slot. Thereby, the tool-free terminal block has excellent convenience in use.

Description

Tool-free terminal block

Technical Field

The present invention relates to a terminal block structure, and more particularly, to a tool-free terminal block.

Background

Terminal blocks (Terminal blocks) are widely used in machine devices (such as industrial calculators, uninterruptible power systems, power supplies, etc.), industrial control devices (such as electromechanical systems, refrigeration air conditioners, programmable controllers, etc.), or electrical appliances (such as air conditioners, refrigerators, washing machines, ovens, etc.), as electrical connectors for electrically connecting a plurality of wires.

The traditional terminal table is mainly formed by combining an insulating seat and a conductive terminal, wherein a spring plate used for fixing a wire is further arranged in the insulating seat, the spring plate is pressed by a screwdriver or other tools, the wire is inserted into the insulating seat and is connected with the conductive terminal in a conduction mode, and finally the screwdriver or other tools are pulled away, so that the spring plate presses the wire and is positioned in the insulating seat.

However, when the terminal block is used for wiring, the screwdriver or other tools are not designed for the purpose of wiring, so that the screwdriver or other tools are inconvenient to apply to the terminal block, and the terminal block is easily damaged when the screwdriver or other tools are carelessly used. Therefore, it is one of the main points of research and development of practitioners to improve the wiring tool with the terminal block.

In view of the above, the present inventors have made extensive studies and studies to solve the above problems in combination with the application of the above conventional techniques, and as a result, the present inventors have developed the present invention.

Disclosure of Invention

The invention provides a tool-free terminal block, which can drive a movable elastic arm to be away from a conductive terminal to open a slot by rotating a turning piece so as to save a screwdriver or other tools and ensure that the tool-free terminal block has excellent use convenience.

In an embodiment of the present invention, the present invention provides a tool-less terminal block, including: the insulating seat is internally provided with a containing cavity and externally provided with a slot communicated with the containing cavity; a turning piece pivoted to the insulating base; a conductive terminal fixed at the bottom of the slot; the clamping elastic sheet is accommodated in the accommodating cavity and is arranged above the conductive terminal, a movable elastic arm which abuts against the conductive terminal and seals the slot extends from the clamping elastic sheet, and a linkage rod which is fixedly connected to the turning piece and can move along with the turning piece extends from the movable elastic arm; when the turning piece rotates to a release position, the linkage rod is pulled by the turning piece to drive the movable elastic arm to be far away from the conductive terminal and open the slot.

Based on the above, compared with the prior art that the spring plate is pressed by using a screwdriver or other tools, the turning piece is rotated to drive the movable spring arm to open the slot or press the core wire of the wire to be electrically connected with the conductive terminal, so that the use of the screwdriver or other tools is omitted, and the use convenience of the tool-free terminal table is improved.

Drawings

Fig. 1 is a perspective assembly view of a tool-less terminal block according to the present invention;

FIG. 2 is an exploded perspective view of the present invention;

FIG. 3 is a perspective assembly view of the present invention;

fig. 4 is an exploded perspective view of the tool-less terminal block of the present invention;

FIG. 5 is a perspective view of the tool-less terminal block of the present invention;

FIG. 6 is a cross-sectional view of a tool-less terminal block according to the present invention;

FIG. 7 is a schematic view of a tool-less terminal block according to the present invention;

fig. 8 is a schematic view of another usage state of the tool-less terminal block of the present invention.

Symbolic illustration in the drawings:

10: a tool-less terminal block;

1: an insulating base;

11: a cavity;

111: a U-shaped groove;

12: a slot;

13: a front side wall;

14: a top wall;

141: a through groove;

142: a pivot hole;

143: a groove;

2: turning the piece;

21: a pivot;

22: a handle;

23: an L-shaped hook block;

3: a conductive terminal;

31: a stopping sheet;

4: a clamping spring plate;

40: a U-shaped elastic sheet;

41: a movable elastic arm;

411: a linkage rod;

412: a T-shaped projection;

42: positioning the bullet wall;

421: a long notch;

200: a wire;

201: a core wire.

Detailed Description

The following detailed description and technical contents of the present invention will be described with reference to the drawings, which are provided for illustrative purposes only and are not intended to limit the present invention.

Referring to fig. 1 to 8, the present invention provides a tool-free terminal block 10, which mainly includes an insulating base 1, a turning member 2, a conductive terminal 3 and a clamping spring 4.

As shown in fig. 1 and fig. 4 to 8, the insulating base 1 has a cavity 11 therein and a slot 12 formed outside and communicating with the cavity 11, and the inner wall of the cavity 11 has a U-shaped groove 111.

In detail, the insulating base 1 has a front side wall 13 and a top wall 14, the slot 12 is opened from the front side wall 13, the top wall 14 has a through slot 141 communicating with the cavity 11, two pivot holes 142 are extended from an inner wall of the through slot 141, and the top wall 14 further has a groove 143 disposed between the front side wall 13 and the two pivot holes 142.

As shown in fig. 1 to 8, the rotating member 2 is pivotally connected to the insulating base 1 and rotates between a locking position and a releasing position, the rotating member 2 is accommodated in the through slot 141 and extends to form two pivot shafts 21 pivotally connected to the two pivot holes 142, and the rotating member 2 further extends to form two L-shaped hook blocks 23 accommodated in the through slot 141 and disposed between the front sidewall 13 and the two pivot holes 142.

As described further below, the toggle member 2 has a handle 22 hidden in the groove 143, the locking position is that the handle 22 is hidden in the groove 143, and the releasing position is that the handle 22 protrudes out of the groove 143.

As shown in fig. 1, 4 to 8, the conductive terminal 3 is fixed at the bottom of the slot 12, the conductive terminal 3 extends upward to form a stop piece 31, the stop piece 31 is disposed between the wrench member 2 and the clamping elastic piece 4, and the wrench member 2 is stopped and positioned by the stop piece 31.

As shown in fig. 1 to 8, the clip elastic sheet 4 is accommodated in the accommodating cavity 11 and disposed above the conductive terminal 3, the clip elastic sheet 4 is a U-shaped elastic sheet 40, one end of the U-shaped elastic sheet 40 is formed with a movable elastic arm 41, and the other end is formed with a positioning elastic wall 42, the movable elastic arm 41 abuts against the conductive terminal 3 and closes the slot 12, the movable elastic arm 41 further extends to form a linkage rod 411, and the end of the linkage rod 411 extends to form a T-shaped protrusion 412 engaged with the two L-shaped hooks 23, so that the linkage rod 411 is fixedly connected to the rotation member 2 and can move along with the rotation member 2.

In addition, the middle of the U-shaped elastic sheet 40 is embedded in the U-shaped groove 111, and the positioning elastic wall 42 is stopped and positioned by the stopping sheet 31, so that the middle of the U-shaped elastic sheet 40 and the positioning elastic wall 42 are stably fixed in the cavity 11 together.

Furthermore, the end of the positioning elastic wall 42 is provided with a long notch 421, the linking rod 411 is inserted into the long notch 421, and the linking rod 411 is formed by cutting from the U-shaped elastic sheet 40 and then bending outward, so as to improve the material utilization rate and save the cost.

As shown in fig. 5 to 8, the terminal block 10 of the present invention is used without a tool. First, as shown in fig. 5 to 6, when the toggle member 2 is rotated to the locking position where the handle 22 is hidden in the groove 143, the linking rod 411 is not pulled by the toggle member 2, so that the movable elastic arm 41 is reset to the position where it abuts against the conductive terminal 3 and closes the slot 12; then, as shown in fig. 7, when the conductive wire 200 needs to be installed in the slot 12, the wrench member 2 is rotated to the release position where the handle 22 protrudes out of the groove 143, the two L-shaped hook blocks 23 move upwards along with the wrench member 2, and simultaneously the two L-shaped hook blocks 23 pull up the T-shaped protrusion 412, so that the linkage rod 411 is pulled by the wrench member 2 to drive the movable elastic arm 41 to move upwards away from the conductive terminal 3 and open the slot 12, and the conductive wire 200 can be inserted into the slot 12; finally, as shown in fig. 8, when the turning member 2 is rotated to the locked position where the handle 22 is hidden in the recess 143, the movable elastic arm 41 will be reset toward the conductive terminal 3 until the movable elastic arm 41 presses the core wire 201 of the conductive wire 200 to contact the conductive terminal 3, i.e. the movable elastic arm 41 and the conductive terminal 3 commonly clamp the core wire 201 of the conductive wire 200, so that the conductive wire 200 and the conductive terminal 3 are electrically connected to each other.

Therefore, compared with the prior art that the spring plate is pressed by a screwdriver or other tools, the turning piece 2 is rotated to drive the movable spring arm 41 to open the slot 12 or press the core wire 201 of the lead 200 to be electrically connected with the conductive terminal 3, so that the use of the screwdriver or other tools is omitted, the use requirement of quickly disassembling and connecting the lead 200 is met, and the use efficiency of a customer is improved.

In addition, as shown in fig. 1, the tool-less terminal block 10 of the present invention can be assembled with each other, and the insulating bases 1 are combined together by using a concave-convex structure, so as to achieve the purpose of providing a plurality of wires 200 for connection between the slots 12 and the conductive terminals 3.

Claims

1. A tool-less terminal block, comprising:

the insulating seat is internally provided with a containing cavity and externally provided with a slot communicated with the containing cavity;

a turning piece pivoted to the insulating base;

a conductive terminal fixed at the bottom of the slot; and

the clamping elastic sheet is accommodated in the accommodating cavity and is arranged above the conductive terminal, a movable elastic arm which is abutted against the conductive terminal and seals the slot extends from the clamping elastic sheet, and a linkage rod which is fixedly connected to the turning piece and can move along with the turning piece extends from the movable elastic arm;

when the turning piece rotates to a release position, the linkage rod is pulled by the turning piece to drive the movable elastic arm to be far away from the conductive terminal and open the slot.

2. The tool-less terminal block of claim 1, wherein the toggle member rotates between a locking position and the releasing position, and when the toggle member rotates to the locking position, the linkage rod is not pulled by the toggle member, so that the movable resilient arm is reset to a position abutting against the conductive terminal and closing the slot.

3. The tool-less terminal block of claim 2, wherein the insulating base has a front wall and a top wall, the top wall has a through slot communicating with the cavity, two pivot holes extend from an inner wall of the through slot, the wrench member is received in the through slot and has two pivots extending from the two pivot holes, and the slot is opened from the front wall.

4. The tool-less terminal block of claim 3, wherein the top wall has a recess disposed between the front wall and the two pivot holes, the toggle member has a handle capable of being hidden in the recess, and the lock position is such that the handle is hidden in the recess.

5. The tool-less terminal stand of claim 4, wherein the wrench member extends with two L-shaped hooks received in the through slot and disposed between the front wall and the two pivot holes, and a T-shaped protrusion engaged with the two L-shaped hooks extends from a distal end of the linking rod.

6. The tool-less terminal block of claim 2, wherein the clip spring is a U-shaped spring having one end formed with the movable spring arm and the other end formed with a positioning spring wall.

7. The tool-less terminal block of claim 6, wherein the cavity has a U-shaped groove on an inner wall thereof, the conductive terminal has a stop piece extending upward, the U-shaped spring is embedded in the U-shaped groove, and the positioning spring wall is stopped by the stop piece.

8. The tool-less terminal block of claim 7, wherein the stopping piece is disposed between the wrench member and the clip spring, and the wrench member is stopped and positioned by the stopping piece.

9. The tool-less terminal block of claim 8, wherein the positioning spring wall has an elongated notch at an end thereof, and the linking rod is disposed through the elongated notch.

10. The tool-less terminal block of claim 9, wherein the linkage is formed by cutting the U-shaped spring piece and then bending the U-shaped spring piece outward.