Tool-less terminal block

Abstract

The application relates to a tool-free terminal block, which comprises an insulating base, a turning piece, a conductive terminal and a clamping spring. The insulating base has a cavity inside and a slot outside, which is communicated with the cavity. The turning piece is pivotally connected to the insulating base. The conductive terminal is fixed at the bottom of the slot. The clamping spring is accommodated in the cavity and arranged above the conductive terminal. The clamping spring extends an active spring arm, which abuts against the conductive terminal and closes the slot. The active spring arm further extends a connecting rod, which is fixed to the turning piece and can move along with the turning piece. When the turning piece is turned to a releasing position, the connecting rod is pulled by the turning piece to drive the active spring arm away from the conductive terminal and open the slot. Thus, the tool-free terminal block has excellent convenience.

Description

TECHNICAL FIELD

[0001] The present application relates to a terminal block structure, and more particularly to a tool-free terminal block. BACKGROUND

[0002] Terminal blocks are widely used in machines and devices (such as industrial computers, uninterruptible power systems, power supplies, etc.), industrial control devices (such as electromechanical systems, refrigeration air conditioners, or programmable controllers, etc.), or electrical appliances (such as air conditioners, refrigerators, washing machines, or ovens, etc.), as electrical connection devices for providing electrical connection of multiple wires.

[0003] Conventional terminal blocks are mainly composed of an insulating base and a conductive terminal. The insulating base has a spring inside for fixing the wire. The spring is pressed by a screwdriver or other tools, and then the wire is inserted into the insulating base and connected to the conductive terminal. Finally, the screwdriver or other tools are removed, so that the spring presses the wire and positions it in the insulating base.

[0004] However, the screwdriver or other tools are not designed for wiring purposes, so it is not convenient to use the screwdriver or other tools with the terminal block. In addition, the screwdriver or other tools can easily damage the terminal block if used carelessly. Therefore, how to improve the wiring tools for terminal blocks is one of the key points for researchers to develop.

[0005] Therefore, the present application is developed to solve the above problems. SUMMARY

[0006] The present application provides a tool-free terminal block, which uses a rotating lever to drive the movable spring arm away from the conductive terminal to open the insertion slot, thereby eliminating the need for a screwdriver or other tools, and making the tool-free terminal block more convenient to use.

[0007] In an embodiment of the present application, a tool-free terminal block is provided, which includes an insulating base having a cavity inside and an insertion slot outside communicating with the cavity; a lever pivoted to the insulating base; a conductive terminal fixed at the bottom of the insertion slot; and a clamping spring accommodated inside the cavity and arranged above the conductive terminal. The clamping spring extends a movable spring arm abutting the conductive terminal and closing the insertion slot. The movable spring arm further extends a connecting rod fixed to the lever and capable of following the lever to actuate. When the lever is rotated to a release position, the connecting rod is pulled by the lever to drive the movable spring arm away from the conductive terminal and open the insertion slot.

[0008] Based on the above, compared with the known pressing of the spring sheet by using a screwdriver or other tools, the present application rotates the turning piece to drive the movable spring arm to open the insertion slot or press the core wire of the wire against the conductive terminal, thereby omitting the use of the screwdriver or other tools, so as to improve the use convenience of the tool-free terminal table. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 A perspective assembly view of the tool-free terminal table of the present application;

[0010] Figure 2 A perspective exploded view of the tool-free terminal table of the present application;

[0011] Figure 3 A perspective assembly view of the tool-free terminal table of the present application;

[0012] Figure 4 A perspective exploded view of the tool-free terminal table of the present application;

[0013] Figure 5 A perspective assembly view of the tool-free terminal table of the present application;

[0014] Figure 6 A cross-sectional view of the tool-free terminal table of the present application;

[0015] Figure 7 A use state view of the tool-free terminal table of the present application;

[0016] Figure 8 Another use state view of the tool-free terminal table of the present application.

[0017] Explanation of symbols in the drawings:

[0018] 10: tool-free terminal table;

[0019] 1: insulating seat;

[0020] 11: cavity;

[0021] 111: U-shaped groove;

[0022] 12: insertion slot;

[0023] 13: front side wall;

[0024] 14: top wall;

[0025] 141: through groove;

[0026] 142: pivot hole;

[0027] 143: recess;

[0028] 2: turning piece;

[0029] 21: pivot;

[0030] 22: Handle;

[0031] 23: L-shaped hook block;

[0032] 3: Conductive terminals;

[0033] 31: Stop plate;

[0034] 4: Clamped shrapnel;

[0035] 40: U-shaped shrapnel;

[0036] 41: Movable spring arm;

[0037] 411: Linkage rod;

[0038] 412: T-shaped bump;

[0039] 42: Positioning bullet wall;

[0040] 421: Long notch;

[0041] 200: Wire;

[0042] 201: Core wire. Detailed Implementation

[0043] The detailed description and technical content of the present invention will be explained in conjunction with the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the present invention.

[0044] Please refer to Figures 1 to 8 As shown, the present invention provides a tool-free terminal block. This tool-free terminal block 10 mainly includes an insulating base 1, a swivel member 2, a conductive terminal 3, and a clamping spring 4.

[0045] like Figure 1 , Figures 4 to 8 As shown, the insulating base 1 has a cavity 11 inside and a slot 12 outside that communicates with the cavity 11. The inner wall of the cavity 11 is provided with a U-shaped groove 111.

[0046] 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 is provided with a through groove 141 that communicates with the cavity 11. Two pivot holes 142 extend from the inner wall of the through groove 141. The top wall 14 is further provided with a groove 143 disposed between the front side wall 13 and the two pivot holes 142.

[0047] like Figures 1 to 8As shown, the turning member 2 is pivoted to the insulating base 1 and rotates between a locking position and a releasing position, the turning member 2 is accommodated in the through slot 141 and extends with two pivots 21 pivoted to two pivot holes 142, the turning member 2 further extends with two L-shaped hook blocks 23 accommodated in the through slot 141 and arranged between the front sidewall 13 and the two pivot holes 142.

[0048] Further explained as follows, the turning member 2 has a handle 22 which can be hidden in the recess 143, the locking position is that the handle 22 is hidden in the recess 143, and the releasing position is that the handle 22 protrudes from the recess 143.

[0049] As shown, Figure 1 , Figures 4 to 8 As shown, the conductive terminal 3 is fixed at the bottom of the insertion slot 12, the conductive terminal 3 extends upward with a stop piece 31, the stop piece 31 is arranged between the turning member 2 and the clamping spring 4, and the turning member 2 is positioned by the stop piece 31.

[0050] As shown, Figures 1 to 8 As shown, the clamping spring 4 is accommodated inside the accommodating cavity 11 and arranged above the conductive terminal 3, the clamping spring 4 is a U-shaped spring 40, one end of the U-shaped spring 40 forms a movable spring arm 41 and the other end forms a positioning spring wall 42, the movable spring arm 41 abuts against the conductive terminal 3 and closes the insertion slot 12, the movable spring arm 41 further extends with a connecting rod 411, the end of the connecting rod 411 extends with a T-shaped protrusion 412 which is engaged with the two L-shaped hook blocks 23, so that the connecting rod 411 is fixed to the turning member 2 and can act with the turning member 2.

[0051] In addition, the middle of the U-shaped spring 40 is embedded in the U-shaped groove 111, and the positioning spring wall 42 is positioned by the stop piece 31, so that the middle of the U-shaped spring 40 and the positioning spring wall 42 are stably fixed inside the accommodating cavity 11.

[0052] Further, the end of the positioning spring wall 42 is provided with an elongated notch 421, the connecting rod 411 is arranged in the elongated notch 421, and the connecting rod 411 is formed by cutting from the U-shaped spring 40 and then folding outward, so as to improve material utilization and save cost.

[0053] As shown, Figures 5 to 8 As shown, the use state of the tool-free terminal base 10 of the present application. First, as shown, Figures 5 to 6 When the turning member 2 is rotated to the locking position in which the handle 22 is hidden in the recess 143, the connecting rod 411 is not pulled by the turning member 2, so that the movable spring arm 41 is reset to the position of abutting against the conductive terminal 3 and closing the insertion slot 12; then, as shown, Figure 7As shown, when the wire 200 needs to be installed in the slot 12, the lever 2 is rotated until the handle 22 protrudes from the groove 143 and is released. The two L-shaped hooks 23 move upward with the lever 2, and at the same time, the two L-shaped hooks 23 pull the T-shaped protrusion 412 upward, so that the connecting rod 411 is pulled by the lever 2 and drives the movable spring arm 41 upward away from the conductive terminal 3 and opens the slot 12, so that the wire 200 can be inserted into the slot 12; finally, as Figure 8 As shown, when the lever 2 is rotated to the locked position where the handle 22 is retracted into the groove 143, the movable spring arm 41 will return to the position close to the conductive terminal 3 until the movable spring arm 41 presses against the core wire 201 of the wire 200 and touches the conductive terminal 3. That is, the movable spring arm 41 and the conductive terminal 3 together clamp the core wire 201 of the wire 200, so that the wire 200 and the conductive terminal 3 are electrically connected to each other.

[0054] Therefore, compared to the known method of pressing the spring with a screwdriver or other tools, the present invention can drive the movable spring arm 41 to open the slot 12 or press the core wire 201 of the wire 200 to electrically connect to the conductive terminal 3 by rotating the rotating part 2, thereby eliminating the need for screwdrivers or other tools, meeting the needs of quickly connecting and disconnecting the wire 200, and thus improving the efficiency of the user.

[0055] In addition, such as Figure 1 As shown, the tool-free terminal block 10 of the present invention can be interconnected in several units, and several insulating bases 1 are joined together by a concave-convex structure to achieve the purpose of providing several slots 12 and conductive terminals 3 to provide several wires 200 for connection.

Claims

1. A tool-less terminal block, characterized by, The utility model relates to an electric connector, comprising: an insulating base having a cavity and a slot and a through slot; a turning member pivotally connected to the insulating base; a conductive terminal fixed at the bottom of the slot; and a clamping spring plate accommodated in the cavity and arranged above the conductive terminal, the clamping spring plate extending an active spring arm abutting the conductive terminal and closing the slot, the active spring arm further extending a connecting rod. The turning member extends two L-shaped hooks accommodated in the through slot, the connecting rod extends a T-shaped protrusion engaged with the two L-shaped hooks, so that the connecting rod is fixed to the turning member and can follow the turning member to act, when the turning member is turned to a release position, the two L-shaped hooks move upward with the turning member and pull the T-shaped protrusion upward, so that the connecting rod is pulled by the turning member to drive the active spring arm away from the conductive terminal and open the slot. The clamping spring plate is a U-shaped spring plate, one end of the U-shaped spring plate forms the active spring arm and the other end forms a positioning spring wall, the end of the positioning spring wall is provided with an elongated gap, the connecting rod is arranged in the elongated gap, and the connecting rod and the T-shaped protrusion are formed by cutting from the U-shaped spring plate and folding outward.

2. The tool-less terminal block of claim 1, wherein, The turning member is turned between a locking position and the release position, when the turning member is turned to the locking position, the connecting rod is not pulled by the turning member, so that the active spring arm is reset to the position abutting 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 is provided with the through slot, the inner wall of the through slot extends two pivot holes, the turning member is accommodated in the through slot and extends two pivots pivotally connected to the two pivot holes, and the slot is formed from the front wall.

4. The tool-less terminal block of claim 3, wherein, The top wall is provided with a groove arranged between the front wall and the two pivot holes, the turning member has a handle capable of being accommodated in the groove, and the locking position is that the handle is accommodated in the groove.

5. The tool-less terminal block of claim 4, wherein, The two L-shaped hooks are arranged between the front wall and the two pivot holes.

6. The tool-less terminal block of claim 2, wherein, The inner wall of the cavity is provided with a U-shaped groove, the conductive terminal extends an upper stop piece, the U-shaped spring plate is embedded in the U-shaped groove, and the positioning spring wall is positioned by the stop piece.

7. The tool-less terminal block of claim 6, wherein, The stop piece is arranged between the turning member and the clamping spring plate, and the turning member is positioned by the stop piece.

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