CN209786209U - Split type conductive clamping mechanism and wiring terminal with same - Google Patents

Abstract

The utility model discloses a split type conductive clamping mechanism, which is used for fixing an external wire inserted into a wiring terminal and electrically connected with the external wire, and comprises a conductive part and a clamping part, wherein the conductive part and the clamping part are contacted in the wiring terminal; the clamping part comprises a fixed section, a bending section and a clamping section, the clamping section is connected with the clamping section through the bending section, and the clamping section is matched with the conductive part to clamp the front end of the wire; a connecting terminal with the split type conductive clamping mechanism is also disclosed. The utility model increases the conductive area in the conductive clamping mechanism, and can adapt to plugging electric wires of 0.5-2.5 square; the hard wire is directly inserted and connected, and the fast insertion of the hard wire can be realized without any other redundant steps; the copper sheet of the conductive part increases the area of the contact wire, so that the temperature rise of the electric wire is lower after the electric wire is electrified, and the conductive effect is better; the volume of the conductive clamping mechanism is reduced, and the wiring terminal with more exquisite volume is convenient to manufacture.

Description

Split type conductive clamping mechanism and wiring terminal with same

Technical Field

The utility model relates to a binding post's electrically conductive clamping mechanism, especially a split type electrically conductive clamping mechanism.

Background

The main structure of the current threadless terminal generally comprises a shell, a locking and unlocking piece and a conductive clamping mechanism, wherein the locking and unlocking piece is used for opening and closing the conductive clamping mechanism positioned inside the shell, so that a lead can be inserted into the conductive clamping mechanism when the conductive clamping mechanism is opened, and the lead is kept inside the shell of the terminal when the conductive clamping mechanism is closed, thereby realizing the fixation of the lead and the connection among a plurality of leads.

Generally, the locking and unlocking member needs to be applied to the conductive clamping mechanism with a large force to insert or pull out the wire, so that the wire can be inserted and pulled out only by applying an external force, that is, the external force needs to be applied to unlock the conductive clamping mechanism before the wire is inserted, then the wire is inserted, and the external force needs to be applied to unlock the conductive clamping mechanism again before the wire is pulled out. Some terminals can not realize self-locking after the wire is inserted, and another external force is needed to lock the conductive clamping mechanism independently, so that the operation of the wiring terminal becomes complicated, the use efficiency is low, the conductive clamping mechanism usually has a complex reed structure, the requirements on parameters such as processing precision and firmness are high, and the manufacturing cost is also high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a be fit for inserting fast the electrically conductive clamping mechanism of binding post of wire is provided to solve prior art's electrically conductive clamping mechanism processing complicacy, complex operation's problem.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

A split type conductive clamping mechanism is used for fixing an external lead inserted into a wiring terminal and electrically connected with the external lead and comprises a conductive part and a clamping part, wherein the conductive part and the clamping part are in contact in the wiring terminal; the clamping part comprises a fixed section, a bending section and a clamping section, the clamping part is connected with the clamping section through the bending section, and the clamping section is matched with the conductive part to clamp the front end of the wire.

Furthermore, a notch is arranged in the middle of the edge of the clamping section, which is in contact with the conductive part.

Furthermore, the conductive part is provided with a second through hole, so that an external driving mechanism of the wiring terminal penetrates through the second through hole to contact and drive the clamping section, and the clamping section is far away from the conductive part.

Further, the conductive part has two opposite sides of the opening which are symmetrical.

Further, the conductive clamping mechanism at least comprises 1 conductive part and 2 clamping parts connected side by side.

Further, the conducting part is parallel to the horizontal section of the fixing section and is abutted against the vertical section of the fixing section, and the clamping section and the conducting part form an acute angle.

The utility model also discloses a binding post, insulating casing and deblocking piece including interconnect to and be located the inside electrically conductive clamping device of insulating casing, electrically conductive clamping device is split type electrically conductive clamping mechanism.

Further, the insulating housing has a first slit or groove for holding the conductive portion.

Further, the split conductive clamping mechanism has a second slit that receives the fixing portion of the insulating housing.

Furthermore, the side of the conductive part is provided with an opening, and the insulating shell is provided with a bump matched with the opening.

Compared with the prior art, the utility model has the advantages of: 1. the conductive area in the conductive clamping mechanism is increased, and the conductive clamping mechanism can adapt to plugging of 0.5-2.5 square wires; 2. the hard wire is directly inserted and connected, and the fast insertion of the hard wire can be realized without any other redundant steps; 3. the copper sheet of the conductive part increases the area of the contact wire, so that the temperature rise of the electric wire is lower after the electric wire is electrified, and the conductive effect is better; 4. the volume of the conductive clamping mechanism is reduced, and the wiring terminal with more exquisite volume is convenient to manufacture.

Drawings

Fig. 1 is a schematic structural view of the conductive clamping mechanism 300 of the connection terminal of the present invention.

Fig. 2 is a schematic structural diagram of the conductive portion 310 of the connection terminal of the present invention.

Fig. 3 is a schematic structural diagram of the clamping portion 320 of the connection terminal of the present invention.

Fig. 4 is a schematic view of a part of the structure of the terminal of the conductive clamping mechanism 300 of the terminal of the present invention.

Fig. 5 is a schematic structural view of the insulating housing 100 fitted with the conductive clamping mechanism 300 of the connecting terminal of the present invention.

Fig. 6 is a schematic structural view of the unlocking member 200 cooperating with the conductive clamping mechanism 300 of the connecting terminal of the present invention.

Fig. 7 is a schematic structural view of the sealing cap 160 fitted to the terminal conductive clamping mechanism 300 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The utility model discloses a wiring terminal, including interconnect's insulating casing 100 and unblock piece 200 to and electrically conductive clamping mechanism 300. The insulating housing 100 has a continuous inner surface 110 inside, the inner surface 110 forms a cavity 111 communicating with the outside, the inner surface 110 has a fixing portion 120 protruding from the inner surface 110 into the cavity 111, the fixing portion 120 can fix the conductive clamping mechanism 300 in the cavity 111 and keep the conductive clamping mechanism 300 from moving, the fixing portion 120 of the insulating housing 100 can be inserted into the second slot 301 of the conductive clamping mechanism 300 to achieve quick positioning of the conductive clamping mechanism 300 when being installed in the insulating housing 100 and further fixing after being installed, preventing the conductive clamping mechanism 300 from being displaced in the insulating housing 100. The fixing portion 120 has a convex plate shape, a block shape, or a sheet shape, which is advantageous for insertion into the second slit 301.

The insulating housing 100 further has a first passage 130 communicating with the cavity 111 and the conductive clamping mechanism 300 for an external wire to pass through and enabling the external wire to be directly inserted into the conductive clamping mechanism 300. Direct insertion means that the external wire does not bend or fold while moving inside the first passage 130 until the front end of the wire is inserted into the conductive clamping mechanism 300 and clamped by the conductive clamping mechanism 300, that is, the wire is inserted into the terminal and fixed inside the terminal, requiring only one action. When the external force is directly applied to the lead, the front end of the lead does not depart from the conductive clamping mechanism 300, unless sufficient external force is applied to the conductive clamping mechanism 300, the conductive clamping mechanism 300 can release the front end of the lead, but the lead or the front end of the lead cannot be popped out or pushed out, and the clamping state of the front end of the lead is just released, so that two actions are needed if the lead is pulled out from the wiring terminal, firstly, the external force is applied to the conductive clamping mechanism 300 firstly, the clamping state of the conductive clamping mechanism 300 is released, secondly, another external force is applied to the lead, and the lead is pulled out.

The conductive clamping mechanism 300 has at least two functions of clamping and conducting electricity. The clamping function means that the front end of the wire can be clamped; the conductive function means that the leading end of the wire is brought into contact with the conductive clamping mechanism 300 and electrically connected to at least a part of the conductive clamping mechanism 300. In addition to this, the conductive clamping mechanism 300 can be stably held inside the cavity 111, and for this purpose, the conductive clamping mechanism 300 has a structure capable of stably fitting inside the cavity 111, for example, the conductive clamping mechanism 300 has the second slit 301 to fit with the protruding fixing portion 120. This configuration also enables quick positioning of the conductive clamping mechanism 300 when assembling the terminal.

The conductive clamping mechanism 300 has a conductive portion 310 and a clamping portion 320, and the conductive portion 310 may be made of a metal material with good conductivity or other materials, and in an embodiment of the present invention, the conductive portion 310 is made of copper. The clamping portion 320 has an elastic restoring function and is in contact with the conductive portion 310. In the embodiment of the present invention, the clamping portion 320 is made of stainless steel.

The clamping part 320 comprises a fixed section 321, a bending section 322 and a clamping section 323, the fixed section 321 is connected with the clamping section 323 through the bending section 322 to form a certain angle, and the fixed section 321 is provided with a plurality of through holes 314 so as to reduce the cost of the stainless steel sheet and facilitate heat dissipation; the fixing segment 321 has a horizontal segment 3211 and a vertical segment 3212 connected to each other, in an embodiment of the present invention, the horizontal segment 3211 and the clamping segment 323 form an acute angle α, in other embodiments, if the limitation of the space size is not considered, the horizontal segment 3211 and the clamping segment 323 may also form an obtuse angle, but for the terminal requiring to reduce the volume as much as possible, forming the acute angle α is a preferred embodiment. The bending section 322 has an arc bending shape, and provides an elastic reset buffer room for the clamping section 323 besides connecting the horizontal section 3211 and the clamping section 323, so that the processing difficulty is reduced, and the strength of the whole conductive clamping mechanism 300 is improved. In the embodiment, the clamping portion 320 is integrally formed, after the stainless steel sheet is bent by an external force, a bent portion of the stainless steel sheet is directly formed into a bent section 322, one end of the stainless steel sheet is formed into a fixed section 321, the fixed section 321 is bent again to form a horizontal section 3211 and a vertical section 3212, and the other end of the stainless steel sheet is formed into a clamping section 323. In an embodiment of the present invention, 2 clamping portions 320 are connected at the fixing section 321. When the number of the clamping parts 320 is more than 2, the adjacent clamping parts 320 are connected at the adjacent fixing sections 321, and a gap 301 is formed between the adjacent bending sections 322 and the adjacent clamping sections 323; of course, the adjacent clamping portions 320 may be connected at the adjacent fixing segments 321 and bending segments 322 at the same time, and only the adjacent clamping segments 323 form a gap therebetween.

The clamping section 323 is used to clamp the leading end of the wire in cooperation with the conductive portion 310. The space between clamping section 323 and the conductive part 310 is used for penetrating the front end of wire, for making can adapt to the wire of more specifications (diameters) between clamping section 323 and the conductive part 310, protects the wire simultaneously and is not broken by the pinches because of the too big clamping force, and the edge that clamping section 323 and conductive part 310 contacted is equipped with breach 330, and for the stability that improves the clamping wire, breach 330 is located the middle part of clamping section 323, in the embodiment of the utility model, clamping section 323 forms two short arms 340 in breach 330 both sides, and short arm 340 and conductive part 310 are contactless. The notch 330 may be processed in various shapes as required, and the notch 330 is preferably formed in an arc shape in consideration of the shape of the cross section of the wire and the fixation.

The conductive portion 310 is integrally formed by a copper sheet. The insulating housing 100 has a first gap 101 between the fixing portion 120 and the inner surface 110 above the fixing portion 120, and the conductive portion 310 is inserted into the first gap 101 to achieve positioning. The conductive portion 310 is inserted into the inner surface 110, for example, a notch 311 may be formed on the conductive portion 310, a corresponding bump 112 may be formed on the inner surface 110 of the insulating housing 100, and the bump 112 may be inserted into the notch 311 to further fix the conductive portion 310. The notches 311 may be symmetrically disposed on two opposite sides of the conductive portion 310, such that the front and rear structures of the conductive portion 310 are symmetrical, and thus, when assembling the terminal, the conductive portion 310 may be pushed into the first slot 101 inside the insulating housing 100 from any one of the sides having the notch 311 to hold the conductive portion 310 inside the insulating housing 100 without considering the direction of the notch 311 when placing the conductive portion 310 inside the insulating housing 100. In the present embodiment, the notches 311 are symmetrically disposed on two opposite long sides of the conductive portion 310.

The insulating housing 100 may also be provided with other structures for inserting and fixing the conductive portion 310, for example, a groove (not shown) is formed on the inner surface 110 in the vertical direction, the groove is used for receiving one long side of the conductive portion and matching with the fixing portion 120 located below the conductive portion 310, so as to stably hold the conductive portion 310. Of course, any structure capable of stably holding the conductive portion 310 inside the insulating housing 100 may be adopted as long as the processing conditions inside the insulating housing 100 allow.

When the leading end of the wire is inserted into the notch 330 and pressed against the lower surface of the conductive portion 310 by the clamping section 323, the conductive portion 310 is electrically connected to the leading end of the wire. The vertical section 3212 contacts the conductive portion 310 to electrically connect the conductive portion 310 and the clamping portion 320. In the embodiment of the present invention, the adjacent fixing segments 321 are connected to each other, and the second gap 301 is formed between the adjacent bending segment 322 and the adjacent clamping segment 323 for inserting the fixing portion 120, so as to realize the quick positioning during the installation of the conductive clamping mechanism and the fixation after the installation.

The insulating housing 100 is detachably connected to the unlocking member 200, and the unlocking member 200 has a movable portion 210 capable of rotating or displacing relative to the conductive clamping mechanism 300, and the movable portion 210 can first pass through the first through hole 140 formed in the insulating housing 100 and extend into the cavity 111, and then continue to pass through the second through hole 370 formed in the conductive portion 310 and contact the conductive clamping mechanism 300. In an embodiment of the present invention, the short arm 340 is located below the second through hole 370 on the conductive portion 310. The movable portion 210 contacts the short arm 340 of the clamping section 323 and presses the short arm 340 when a user directly or indirectly applies an external force to the movable portion 210, so that the short arm 340 drives the clamping section 323 to move towards the lower surface far away from the conductive portion 310, the pressure borne by the front end of the wire is relieved, and at the moment, the wire can be pulled out from the terminal by applying a pulling force to the wire. In the same manner as described above, the clamping section 323 can be moved away from the conductive portion 310, and a flexible conductor can be inserted between the clamping section 323 and the conductive portion 310. After all the external force is removed, the elastic potential energy of the clamping section 323 accumulated due to the previous squeezing causes the clamping section 323 to move to the lower surface of the conductive portion 310 again until the flexible conductive wire is clamped. In the case of a hard wire, the clamping section 323 can be pushed away from the conductive portion 310 by the force of the front end of the hard wire, so that the front end of the hard wire is directly inserted between the clamping section 323 and the conductive portion 310 without applying an external force.

Each movable portion 210 corresponds to one clamping portion 320, and further, each unlocking member 200 corresponds to one clamping portion 320, so as to realize independent locking and unlocking of each wire. The utility model discloses an in the embodiment, movable part 210 includes integrated into one piece's pressing plate 211 and briquetting 212, and pressing plate 211 has the cambered surface of the undercut that is fit for human finger to exert the reaction force on the finger when the dispersion is pressed, improve the operation comfort level. The press block 212 is used to press and drive the clamping section 323 away from the lower surface of the conductive portion 310, i.e., out of contact with the conductive portion 310, when pressed. The pressing block 212 is in surface contact with the clamping section 323, the contact surface of the pressing block 212 (the surface in contact with the clamping section 323) is a plane, and the non-contact surface of the pressing block 212 is transited by a smooth arc surface or a short plane, so that the abrasion between the parts is reduced. In the embodiment of the present invention, the pressing block 212 is a pair symmetrically disposed on the lower surface of the pressing plate 211, and accordingly, the first through hole 140 disposed on the insulating housing 100 and the second through hole 370 disposed on the conductive portion 310 are a pair. Compared with a single pressing block 212, the pair of pressing blocks 212 can improve the stability of operation, prevent the clamping section 323 from being incapable of being separated or incapable of being completely separated from the conductive part 310 due to uneven stress, and effectively prolong the service life of the clamping section 323 due to the fact that the stress area of the clamping section 323 is increased.

The junction 220 of the unlocking member 200 and the insulating housing 100 has a thickness smaller than that of the pressing plate 211 of the movable portion 210, i.e., the junction 220 has a groove 221 thinning the thickness of the junction 220, but does not break the junction 220 during use. When the movable portion 210 is pressed down, the movable portion 210 actually pivots at the joint 220 by a small angle, and in order to allow the movable portion 210 to pivot smoothly when an external force is applied, a space for allowing the movable portion 210 to pivot, that is, a groove 221, needs to be provided at the joint 220. In the embodiment of the present invention, the cross section of the groove 221 is triangular, but the cross section may also be trapezoidal, arc-shaped or semicircular, as long as the width of the groove opening of the groove 221 is not less than the width of the bottom of the groove; of course, if the pressing plate 211 is long enough, the angle required for rotation when pressing down can be small enough, and the width of the groove opening of the groove 221 can also be smaller than the width of the groove bottom, but the processing difficulty can be increased. When the external force disappears, the movable portion 210 may reversely pivot to return to the original position under the action of its elastic potential energy, or the movable portion 210 may be forced to return to the original position during the returning process of the clamping section 323. Of course, other connection means, such as a pin connection, may be used to allow the movable portion 210 to be rotationally depressed. The movable portion 210 may be detachably connected to the insulating housing 100 in other non-rotational manners, as long as the movable portion 210 can move toward the clamping section 323 and press the clamping section 323 under the action of external force while being connected to the insulating housing 100, that is, the movable portion 210 is detachably connected to the insulating housing 100. In the embodiment of the present invention, the insulation case 100 has the insertion hole 104 which is inserted in cooperation with the elastic pin 240 of the unlocking member 200 to fix the unlocking member 200.

The insulating housing 100 is further provided with a test hole 150 for detecting voltage and current.

In an embodiment of the present invention, the conductive clamping mechanism 300 is loaded from the front opening of the insulating housing 100 and the wires are inserted from the rear end of the insulating housing 100, i.e., the opening of the first channel 130 is located at the rear end of the insulating housing 100; the conductive part 310 is horizontally inserted into the first slot 101 and clamped and fixed by the top and the inner surface 110 of the fixing part 120, the clamping part 320 is inserted into the insulating housing 100, the fixing part 120 in the insulating housing 100 is inserted into the second slot 301, the horizontal segment 3211 is parallel to the conductive part 310, and the vertical segment 3212 contacts (abuts against) the lower surface of the conductive part 310. The insulating housing 100 has a detachable sealing cover 160, when the conductive clamping mechanism 300 is installed in the insulating housing 100, the sealing cover 160 is engaged with the front opening of the insulating housing 100, and the insertion hole 104 is located on the sealing cover 160 for mating with the pin 240 of the unlocking member 200. The sealing cover 160 is provided with a rib 161 inside for enhancing the strength of the sealing cover 160, and the rib can be matched with other parts of the insulating housing 100 to further abut against the conductive clamping mechanism 300 inside the insulating housing 100 to prevent the conductive clamping mechanism 300 from being displaced.

The bottom of the housing 100 is also provided with universal pins 170 for securing the terminals to the electrical component plane.

Claims (10)

1. The utility model provides a split type electrically conductive clamping mechanism for the fixed outside wire that inserts binding post and with outside wire electricity is connected which characterized in that: the terminal comprises a conductive part (310) and a clamping part (320), wherein the conductive part (310) and the clamping part (320) are contacted inside the terminal; the clamping part (320) comprises a fixed section (321), a bending section (322) and a clamping section (323), the fixed section (321) is connected with the clamping section (323) through the bending section (322), and the clamping section (323) is matched with the conductive part (310) to clamp the front end of the wire.

2. The split conductive clamping mechanism of claim 1, wherein: and a notch (330) is arranged in the middle of the edge of the clamping section (323) which is contacted with the conductive part (310).

3. The split conductive clamping mechanism of claim 2, wherein: the conductive part (310) is provided with a second through hole (370), so that an external driving mechanism of the wiring terminal passes through the second through hole (370) to contact and drive the clamping section (323), and the clamping section (323) is far away from the conductive part (310).

4. The split conductive clamping mechanism of claim 1, wherein: the conductive part (310) has two opposite sides of the notch (311) which are symmetrical.

5. the split conductive clamping mechanism of claim 1, wherein: the conductive clamping mechanism (300) comprises at least 1 conductive part (310) and 2 clamping parts (320) connected side by side.

6. The split conductive clamping mechanism of any one of claims 1 to 5, wherein: the conducting part (310) is parallel to the horizontal section (3211) of the fixing section (321), and is abutted against the vertical section (3212) of the fixing section (321), and the clamping section (323) forms an acute angle with the conducting part (310).

7. A terminal comprising an interconnected insulating housing (100) and an unlocking member (200), and a conductive clamping device located inside the insulating housing (100), characterized in that: the conductive clamping device is a split conductive clamping mechanism as claimed in any one of claims 1 to 5.

8. The connection terminal according to claim 7, wherein: the insulating housing (100) has a first slit (101) or groove for holding the conductive portion (310).

9. The connection terminal according to claim 8, wherein: the split conductive clamping mechanism has a second slit (301) that receives the fixing portion (120) of the insulating housing (100).

10. The connection terminal according to claim 7, wherein: the side of the conductive part (310) is provided with a notch (311), and the insulating shell (100) is provided with a lug (112) matched with the notch (311).