CN214124174U

CN214124174U - Wiring terminal assembly

Info

Publication number: CN214124174U
Application number: CN202120273375.0U
Authority: CN
Inventors: 谢德盛
Original assignee: Wenzhou Guipai Electric Appliance Co ltd
Current assignee: Wenzhou Guipai Electric Appliance Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-09-03
Anticipated expiration: 2031-01-30

Abstract

The application relates to a wiring terminal assembly, which comprises a wiring frame, a wire pressing screw and a conducting strip with electric conductivity, wherein the middle part of the wiring frame is provided with a wiring hole for a wire to penetrate, the wire pressing screw is in threaded connection with the wiring frame, the conducting strip comprises a conducting part, a positioning part and a wire pressing part which are fixedly connected, the wire pressing part is inserted in the wiring hole, and the positioning part is a hard metal block and is positioned on one side of the wiring frame surrounding the wiring hole; when the wiring frame and the conducting strip are embedded into the shell, a gap exists between the wiring frame and the shell. This application has the anti torsional properties that can improve when the connection frame inlays and locates switch or socket shell, the difficult deformation of shell when making connecting wire damages the effect.

Description

Wiring terminal assembly

Technical Field

The present application relates to the field of switch or socket fittings, and more particularly, to a terminal assembly.

Background

The connecting terminal is an accessory product for realizing electrical connection, and is also one of essential parts in a switch and a socket.

In the related art, as shown in fig. 1, a terminal assembly is disclosed, which includes a wiring frame 1, a wire pressing screw 2 and a conductive sheet 3 with conductive performance, wherein a wiring hole 11 for a wire to penetrate is formed in the middle of the wiring frame 1, and the wire pressing screw 2 is screwed on the wiring frame 1. The conductive sheet 3 includes a conductive portion 31 and a wire pressing portion 34 fixedly connected, the wire pressing portion 34 is inserted in the wiring hole 11, and the conductive portion 31 extends to the outside of the wiring frame 1. After the wire is inserted into the wiring hole 11, the wire pressing screw 2 is rotated to drive the wiring frame 1 to move until the wire is clamped by the wire pressing portion 34 and the end of the wire pressing screw 2.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the casing of the switch or the socket is usually made of plastic materials, when the wiring terminal assembly is assembled on the casing, the wiring frame is embedded in a groove formed in the casing and is abutted against the side wall of the groove, and is clamped and fixed through the elastic action of the casing, and the anti-torsion performance of the wiring terminal assembly is weak. When the wire pressing screw is rotated in the process of connecting the wires, the shell is easily deformed and damaged under the stress action of the wiring frame and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the wiring frame and inlay the anti torsional property when locating switch or socket shell, make the difficult deformation of shell damage when connecting wire, this application provides a binding post subassembly.

The application provides a binding post subassembly adopts following technical scheme:

a wiring terminal assembly comprises a wiring frame, a wire pressing screw and a conducting strip with electric conductivity, wherein a wiring hole for a lead to penetrate through is formed in the middle of the wiring frame, the wire pressing screw is connected to the wiring frame in a threaded mode, the conducting strip comprises a conducting portion, a positioning portion and a wire pressing portion which are fixedly connected, the wire pressing portion is inserted into the wiring hole, and the positioning portion is a hard metal block and is located on one side, surrounding the wiring hole, of the wiring frame; when the wiring frame and the conducting strip are embedded into the shell, a gap exists between the wiring frame and the shell.

Through adopting above-mentioned technical scheme, when binding post subassembly was assembled in the shell of switch or socket, there was the clearance in the recess lateral wall that supplies its embedding on connection frame and the shell, and rotatory line ball screw is when pressing tightly the wire of wearing to establish in the wiring hole, and the connection frame is difficult to be contradicted with the lateral wall extrusion of above-mentioned recess to make the shell be difficult for by the connection frame roof pressure and deformation damage. After the wiring frame is subjected to the torque force generated by rotation of the wire pressing screw, the torque force can be transmitted to the positioning portion along the wiring frame, and the positioning portion is a hard metal block, so that the hardness of the positioning portion is larger than that of the plastic shell, the torque force of the wiring frame is better resisted, the torsion resistance of the wiring terminal assembly is improved, and stable wiring is facilitated to improve the stability of terminal conduction.

Optionally, a through hole is formed in one end, close to the wiring frame, of the side wall of the positioning portion.

Through adopting above-mentioned technical scheme, wear to establish the wire during operation in the wiring frame inevitably can produce the heat, and above-mentioned heat can be outwards discharged along the wiring frame, and the setting of through hole not only plays the effect of practicing thrift conducting strip production materials, still is favorable to the heat dissipation of wire.

Optionally, one side of the positioning portion is bent to form an extending portion, and the extending portion abuts against a side wall of the wire frame.

By adopting the technical scheme, the extension part increases the contact area of the conducting strip and the wiring frame, and the reliability of the terminal conduction is further improved.

Optionally, the wire pressing screw comprises a head and a screw portion fixed on one side of the head close to the wiring frame, and a fixing groove for a screwdriver to extend into is formed in the end face, far away from the screw portion, of the head.

Through adopting above-mentioned technical scheme, the fixed slot can supply the screwdriver to stretch into the head rotation with the drive line ball screw, and then makes the screw section drive connection frame of line ball screw remove to compress tightly or loosen the wire of wearing to establish in the wiring hole.

Optionally, a reinforcing ring is integrally formed on the circumferential side wall of the head.

By adopting the technical scheme, on one hand, the reinforcing ring can enhance the structural strength of the head, so that when the screwdriver stretches into the fixing groove to rotate the head, the head is not easy to damage under the action of the screwdriver; on the other hand, after the wiring terminal assembly is assembled on the shell, the reinforcing ring is positioned on the shell and is matched with the shell to limit the movement of the wire pressing screw relative to the shell along the length direction of the screw part, and the stability of the wire pressing screw during wiring operation is improved.

Optionally, the wire pressing portion is located at one end, close to the wire pressing screw, of the wire connection hole, and the cross-sectional area of the wire pressing portion is larger than that of the screw portion.

Through adopting above-mentioned technical scheme, the wire is located between the pore wall that line ball screw was kept away from in line ball portion and wiring hole when penetrating the wiring hole, and behind the rotating line ball screw so that the wiring frame moved to the one side that is close to the line ball screw, the wire can be compressed tightly between the pore wall in line ball portion and wiring hole. The arrangement of the wire pressing part increases the pressed area of the wire and improves the stability of the wire.

Optionally, a connection screw hole in threaded fit with the line pressing screw is formed in the side wall of the wiring frame, a reinforcing block is fixed on the hole wall of the wiring hole close to the connection screw hole, and a reinforcing hole which is equal to the inner diameter of the connection screw hole and is coaxially arranged is formed in the reinforcing block.

Through adopting above-mentioned technical scheme, the reinforcing block has increased the pore wall thickness that the wiring hole is close to line ball screw one side, and the spacing area that its lateral wall received when line ball screw threaded connection is in the wiring frame is bigger, has improved line ball screw and wiring frame's joint strength and line ball screw to the drive effect of wiring frame.

Optionally, the hole wall of the reinforcing hole is provided with an internal thread in threaded fit with the line pressing screw.

Through adopting above-mentioned technical scheme, the internal thread sets up the length that has increased line ball screw and wiring frame screw-thread fit, has further improved the drive effect of line ball screw to the wiring frame.

Optionally, an arc-shaped groove is formed in the wall, away from the connecting screw hole, of the wiring hole.

Through adopting above-mentioned technical scheme, the cross-section of wire generally is circular, and the bottom can contact with the cell wall in circular arc groove when it wears to establish in the wiring hole, and the setting in circular arc groove has increased the area of contact of connection frame with the wire, has improved the locate effect and the stability of wire.

Optionally, a V-shaped groove is formed on the wall of the wiring hole far away from the connection screw hole.

Through adopting above-mentioned technical scheme, the area of contact of wire frame and wire has not only been increased in the setting of V-arrangement groove, can also hinder the relative wire frame of wire and remove, has improved the stability of wire.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the wiring terminal assembly is assembled on the shell of the switch or the socket, a gap exists between the wiring frame and the side wall of the groove for the wiring frame to be embedded into, when the wire pressing screw is rotated, the wiring frame can transmit the torsion force applied to the wiring frame to the conducting strip instead of directly acting on the shell, and the shell is not easy to deform and damage;

2. the extension part increases the contact area of the conducting strip and the wiring frame, and is beneficial to improving the conducting reliability of the terminal; the reinforcing block increases the connection length of the wiring frame and the line pressing screw, and improves the connection stability of the wiring frame and the line pressing screw and the driving effect of the line pressing screw on the wiring frame;

3. the arc-shaped groove or the V-shaped groove increases the contact area of the wire and the wiring frame, and improves the stability and the wire effect when the wire is connected to the wiring frame.

Drawings

Fig. 1 is a schematic structural view of a terminal assembly in the related art.

FIG. 2 is a schematic structural view of embodiment 1.

Fig. 3 is an exploded view of example 1.

Fig. 4 is a schematic structural view of the wire frame in embodiment 2.

Description of reference numerals: 1. a wiring frame; 11. a wiring hole; 12. a V-shaped groove; 13. a reinforcing block; 131. reinforcing holes; 132. an internal thread; 14. a connecting screw hole; 15. an arc-shaped groove; 16. a fixing sheet; 161. a major arc hole; 17. a connecting ring; 2. a wire pressing screw; 21. a head portion; 211. fixing grooves; 212. a reinforcement ring; 22. a screw section; 23. a light bar section; 3. a conductive sheet; 31. a conductive portion; 32. a positioning part; 321. a through hole; 33. an extension portion; 34. and a line pressing part.

Detailed Description

The present application is described in further detail below with reference to figures 2-4.

Example 1

The embodiment of the application discloses binding post subassembly. Referring to fig. 2 and 3, the terminal assembly includes a terminal frame 1, a wire pressing screw 2 and a conductive plate 3, wherein the terminal frame 1, the wire pressing screw 2 and the conductive plate 3 are all made of a metal conductive material, the wire pressing screw 2 is in threaded connection with the terminal frame 1, and one end of the conductive plate 3 is arranged in the terminal frame 1 in a penetrating manner.

Referring to fig. 2 and 3, the wiring frame 1 includes a fixing piece 16 and a connection ring 17 connected to the fixing piece 16, the fixing piece 16 is formed by bending a metal conductive sheet for multiple times, a wiring hole 11 is formed in the middle of the bending fixing piece 16, the hole wall of the wiring hole 11 is enclosed into a 'loop' shape, and an external wire can penetrate through the wiring hole 11, so that current is conducted to the wiring frame 1. The hole wall of the wiring hole 11 far away from the wire pressing screw 2 is provided with an arc-shaped groove 15 for increasing the contact area of the wiring frame 1 and the wire and improving the stability and the conductive effect of the wire.

Referring to fig. 2 and 3, a reinforcing block 13 is formed at a portion where the end portions of the fixing pieces 16 are overlapped after being bent, the reinforcing block 13 is located at one end of the wire connecting hole 11 away from the circular arc groove 15, and the reinforcing block 13 is used for reinforcing the structural strength of the wire connecting frame 1 itself. The end surface of the fixing piece 16 far away from the circular arc groove 15 is formed with a major arc hole 161, and the connecting ring 17 is positioned in the major arc hole 161 and fixedly connected with the reinforcing block 13.

Referring to fig. 2 and 3, a connecting screw hole 14 is formed in the middle of the side wall of the connecting ring 17 away from the wire connecting hole 11, a reinforcing hole 131 is formed in the end surface of the reinforcing block 13 close to the connecting screw hole 14, the reinforcing hole 131 and the connecting screw hole 14 are coaxially arranged, the inner diameters of the reinforcing hole 131 and the connecting screw hole 14 are equal, and an internal thread 132, which has the same spiral direction and thread pitch as the connecting screw hole 14, is formed on the wall of the reinforcing hole 131.

Referring to fig. 2 and 3, the pressing screw 2 includes a head portion 21, a screw portion 22 and a polish rod portion 23 integrally formed in sequence, the head portion 21 and the polish rod portion 23 are respectively located at two opposite sides of the screw portion 22, the diameter of the head portion 21 is larger than that of the screw portion 22, the diameter of the screw portion 22 is larger than that of the polish rod portion 23, and the screw portion 22 is fitted with an internal thread 132 connecting the screw hole 14 and the side wall of the reinforcing hole 131. When the terminal assembly is assembled to the housing of a switch or a socket, the terminal frame 1 is moved in the longitudinal direction of the screw portion 22 by rotating the pressing screw 2, so that the wire inserted into the terminal frame 1 is pressed or released.

Referring to fig. 2 and 3, a fixing groove 211 is formed in an end surface of the head 21 away from the screw portion 22, and the fixing groove 211 is a cross-shaped groove and can be used for a cross-shaped screwdriver matched with the cross-shaped groove to extend into, so that the head 21 is driven to rotate by the cross-shaped screwdriver, and the operation is simple. The circumferential side wall of the head portion 21 is integrally formed with a reinforcing ring 212, and the reinforcing ring 212 is used to improve the structural strength of the head portion 21 itself, so that the head portion 21 itself is not easily broken and damaged when the screwdriver is used to drive the head portion 21.

Referring to fig. 2 and 3, the conductive sheet 3 includes a conductive portion 31, a positioning portion 32, an extending portion 33, and a wire pressing portion 34, which are integrally formed and formed by bending, the wire pressing portion 34 is inserted into one end of the wire connecting hole 11 close to the wire pressing screw 2, the cross-sectional area of the wire pressing portion 34 is larger than that of the screw portion 22, and the wire is located between the wire pressing portion 34 and the groove wall of the arc-shaped groove 15. When the wire frame 1 is moved and the wire is clamped, the contact area of the wire pressing portion 34 with the wire is larger than that of the screw portion 22 with the wire, and the stability of the wire is higher.

Referring to fig. 2 and 3, the extension 33 is perpendicular to the wire pressing portion 34 and the positioning portion 32, and one end of the extension 33 is connected to the wire pressing portion 34 and the other end of the extension 33 is connected to the positioning portion 32. After the wire pressing part 34 is inserted into the wire connection hole 11, the extending part 33 is abutted against the side wall of the wire connection frame 1, so that the contact area of the conducting strip 3 and the wire connection frame 1 is increased, and the conducting stability of the terminal is guaranteed. The positioning part 32 is located on the outer side of the wiring frame 1 surrounding the wiring hole 11, the length direction of the positioning part 32 is parallel to the length direction of the screw rod part 22, the positioning part 32 is hard and plays a role in supporting the wiring frame 1, and the overall anti-torsion performance of the wiring terminal assembly is improved. The side wall of the positioning portion 32 is provided with a through hole 321, and the through hole 321 is located at one end of the positioning portion 32 close to the wire frame 1, which is helpful for heat dissipation of the lead.

Referring to fig. 2 and 3, a conductive portion 31 is connected to an end of the positioning portion 32 away from the extending portion 33, and is used for conducting current input from a wire to a movable contact piece assembled in a switch or a socket, so as to conduct the current.

The implementation principle of the wiring terminal assembly in the embodiment of the application is as follows: when the wiring terminal assembly is assembled in the shell of the switch or the socket, the wiring frame 1 and the positioning part 32 are respectively embedded in the grooves on the shell, the wiring frame extends into the grooves, a gap exists between the side wall of the wiring frame 1 and the shell, and the positioning part 32 is positioned between the side wall of the wiring hole frame 1 surrounding the wiring hole 11 and the shell. After the wire is inserted into the wire connecting hole 11, the wire pressing screw 2 is rotated to move the wire connecting frame 1 to the side close to the wire pressing part 34 until the wire is pressed between the wire pressing part 34 and the wall of the arc-shaped groove 15. In the process of rotating the wire pressing screw 2, the torsion action borne by the wire frame 1 can be conducted to the positioning part 32 instead of being directly acted on the shell, and the shell is not easy to deform and damage due to extrusion of the wire frame 1 and has long service life.

Example 2

The embodiment of the application discloses binding post subassembly. Referring to fig. 4, the embodiment of the present application differs from embodiment 1 in that: the wiring hole 11 in the middle of the wiring frame 1 is formed by punching, and the reinforcing block 13 is fixedly arranged on the hole wall of the wiring hole 11 close to the connecting screw hole 14. The wall of the wiring hole 11 far away from the connecting screw hole 14 is provided with a V-shaped groove 12.

The implementation principle of a binding post subassembly in this application embodiment does: the wiring holes 11 and the reinforcing blocks 13 are formed not only by bending, but also by various processing and forming modes. When the wire stretched into wiring hole 11 and compressed tightly, V-arrangement groove 12 can not only increase the area of contact of wire and connection frame 1, can also hinder the relative connection frame 1 removal of wire, has improved the location effect and the electrically conductive stability of wire.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a terminal subassembly, includes wiring frame (1), line ball screw (2) and conducting strip (3) that have electric conductivity, wiring hole (11) that supply the wire to penetrate are seted up at the middle part of wiring frame (1), line ball screw (2) threaded connection is on wiring frame (1), its characterized in that: the conducting strip (3) comprises a conducting part (31), a positioning part (32) and a wire pressing part (34) which are fixedly connected, the wire pressing part (34) is inserted into the wiring hole (11), and the positioning part (32) is a hard metal block and is positioned on one side, surrounding the wiring hole (11), of the wiring frame (1); when the wiring frame (1) and the conducting strip (3) are embedded into the shell, a gap exists between the wiring frame (1) and the shell.

2. A terminal assembly as set forth in claim 1, wherein: a through hole (321) is formed in one end, close to the wiring frame (1), of the side wall of the positioning portion (32).

3. A terminal assembly as set forth in claim 1, wherein: one side of the positioning part (32) is bent to form an extending part (33), and the extending part (33) is abutted against the side wall of the wire frame (1).

4. A terminal assembly as set forth in claim 1, wherein: the wire pressing screw (2) comprises a head (21) and a screw portion (22) fixed on one side, close to the wiring frame (1), of the head (21), and a fixing groove (211) for a screwdriver to stretch into is formed in the end face, far away from the screw portion (22), of the head (21).

5. The terminal assembly of claim 4, wherein: a reinforcing ring (212) is integrally formed on the circumferential side wall of the head (21).

6. The terminal assembly of claim 4, wherein: the wire pressing part (34) is positioned at one end, close to the wire pressing screw (2), of the wire connecting hole (11), and the cross section area of the wire pressing part (34) is larger than that of the screw part (22).

7. The terminal assembly of claim 4, wherein: the wire frame is characterized in that a connecting screw hole (14) in threaded fit with the wire pressing screw (2) is formed in the side wall of the wire frame (1), a reinforcing block (13) is fixed on the hole wall, close to the connecting screw hole (14), of the wire connecting hole (11), and a reinforcing hole (131) which is equal to the inner diameter of the connecting screw hole (14) and is coaxially arranged is formed in the reinforcing block (13).

8. The terminal assembly of claim 7, wherein: the hole wall of the reinforcing hole (131) is provided with an internal thread (132) which is in threaded fit with the line pressing screw (2).

9. The terminal assembly of claim 7, wherein: and an arc-shaped groove (15) is formed on the wall of the wiring hole (11) far away from the connecting screw hole (14).

10. The terminal assembly of claim 7, wherein: and a V-shaped groove (12) is formed on the wall of the wiring hole (11) far away from the connecting screw hole (14).