CN219419540U

CN219419540U - Electric connector

Info

Publication number: CN219419540U
Application number: CN202320016189.8U
Authority: CN
Inventors: 苏源辉; 吕银泽
Original assignee: Xiamen Hongyuanda Electric Appliance Co ltd
Current assignee: Xiamen Hongyuanda Electric Appliance Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-07-25
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses an electric connecting piece, which comprises a clamping spring and a terminal nut, wherein the clamping spring comprises a connecting part, a clamping spring terminal and a wiring part, the clamping spring terminal and the wiring part are respectively connected to two ends of the connecting part, the wiring part is provided with a through hole, the terminal nut comprises a base plate, a threaded hole corresponding to the through hole of the wiring part is arranged in the middle of the base plate, a riveting pin (or a riveting hole) is arranged on the terminal nut, the wiring part is provided with a riveting hole (or a riveting pin), and the terminal nut and the wiring part of the clamping spring are connected together through interference fit of the corresponding riveting pin and a hole shaft of the riveting hole. The terminal nut is connected with the clamp spring, so that torsion born by the terminal nut is transmitted to the clamp spring through the rivet, the force of the terminal nut extruding the base is reduced, the terminal nut is prevented from shifting relative to the clamp spring, and poor locking caused by misalignment of the screw and the terminal nut is avoided.

Description

Electric connector

Technical Field

The utility model relates to the field of relay sockets, in particular to an electric connector.

Background

The clamp spring and terminal nut structure of the relay socket in the prior art adopts independent parts of a screw, a clamp spring and a terminal nut, and the three parts are locked and matched in a free state, and the structure has the following defects: 1. when the screw is locked, the terminal nut can rotate along with the screw, so that the terminal nut can be extruded to the base, and the base is easily damaged or crushed; 2. when the screw is completely loosened, the terminal nut can fall off from the original position after vibration, and when the screw and the terminal nut are required to be locked again, the screw and the terminal nut cannot be centered, so that the locking assembly is blocked or the screw cannot be locked, and further, the lead cannot be fixed.

Disclosure of Invention

The utility model aims to provide an electric connector which can prevent a terminal nut from displacing relative to a clamping spring to cause lock fitting failure and prevent the nut from being damaged due to overlarge torque of a lock fitting screw.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides an electric connector, which is used for a relay socket and comprises a clamping spring and a terminal nut, wherein the clamping spring comprises a connecting part, a clamping spring terminal and a wiring part, the clamping spring terminal and the wiring part are respectively connected to two ends of the connecting part, the wiring part is provided with a through hole, the terminal nut comprises a base plate, and a threaded hole corresponding to the through hole of the wiring part is arranged in the middle of the base plate;

a plurality of punching and riveting holes are formed around the through hole of the wiring part, and a plurality of riveting pins which are in one-to-one correspondence with the punching and riveting holes are connected to the upper surface of the substrate; or, the lower surface of the wiring part around the through hole is connected with a plurality of riveting pins, and a plurality of riveting holes which are in one-to-one correspondence with the riveting pins are arranged around the threaded hole of the substrate;

the terminal nut and the wiring part of the clamp spring are connected through interference fit between the corresponding riveting pin and the hole shaft of the punching riveting hole.

The base plate is a square platy base plate, the upper surfaces of two opposite angles of the base plate are respectively connected with one riveting pin, two riveting holes are formed in the connecting part of the clamp spring corresponding to the two riveting pins, and the terminal nuts and the wiring part of the clamp spring form opposite angle punching riveting connection. The riveting pins are arranged on the opposite corners of the substrate, so that four edges of the square substrate are close to the threaded holes as much as possible, the area of the substrate is reduced, the riveting pins with larger cross sections are not influenced, materials are saved, and the cost is reduced.

The two riveting pins and the threaded holes are positioned on the same straight line, so that the torsion force born by the two riveting pins is equivalent, the structure is more stable, and the two riveting pins are not easy to damage.

In order to ensure firm connection between the riveting pin and the substrate, the riveting pin is a solid columnar body integrally formed with the substrate.

In order to reduce the thickness of the base plate and reduce the cost, the threaded holes are formed by punching, flanging and then tapping the middle of the base plate.

Preferably, the thickness of the base plate is 0.8mm, and the number of threads of the threaded holes formed by tapping after flanging can meet the wiring locking requirement.

In order to strengthen the stability of clamp spring terminal, avoid deformation because of the insertion of relay pin, clamp spring terminal includes U-shaped connecting seat and two relative reeds of being connected with two opposite lateral wall upper edges of U-shaped connecting seat respectively, and connecting portion include horizontal segment and vertical section, and wiring portion is connected to the first end of horizontal segment, and the lower extreme of vertical section is connected to the second end of horizontal segment, and the middle part lower edge of U-shaped connecting seat is connected to the upper end of vertical section.

Based on installation consideration, the vertical section is formed by bending a cantilever extending from the side edge of the second end of the horizontal section by 90 degrees, and the second end of the horizontal section is staggered with the U-shaped connecting seat. Therefore, the socket can be provided with a support column below the U-shaped connecting seat and below the second end of the horizontal section respectively so as to enhance the stability of the clamping spring.

In order to avoid deformation of the horizontal section, the horizontal section is provided with reinforcing ribs extending along the length direction of the horizontal section.

Wherein, the connecting part, the clamping spring terminal and the wiring part are integrally folded and formed by the sheet-shaped body with equal thickness. Therefore, synchronous installation can be realized, and the electrical performance of the conductive loop can be improved.

Compared with the prior art, the electric connector provided by the utility model has the following advantages:

1. the terminal nut is connected with the clamp spring together, so that torsion born by the terminal nut is simultaneously transmitted to the clamp spring through the riveting pin, and meanwhile, the force is further transmitted, so that the force of the terminal nut for extruding the relay base is reduced, and the base is prevented from being damaged due to overlarge torque of the lock-fit wiring screw.

2. When the screw is completely loosened, the terminal nut is connected with the clamping spring together, so that the terminal nut cannot displace, and further, poor locking and matching caused by misalignment of the terminal nut and the terminal screw are avoided when the terminal screw is locked again.

3. The terminal nut adopts thinner base materials to manufacture the flanging terminal nut, so that the material cost of parts is reduced, and meanwhile, the number of threads of the terminal nut is increased, so that the torque born by the terminal nut is increased.

Drawings

FIG. 1 is a schematic view of an electrical connector according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a half-locked state of an electrical connector and a binding screw according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a fully locked state of an electrical connector and a binding screw according to an embodiment of the present utility model.

Description of the reference numerals: 1. a connection part; 2. a clip spring terminal; 3. a wiring section; 4. a binding screw; 5. a terminal nut; 6. riveting pins; 7. a substrate; 8. a U-shaped connecting seat; 9. a horizontal section; 10. a vertical section; 11. reinforcing ribs; 12. a reed.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

This embodiment discloses an electric connector for relay socket, as shown in fig. 1 and 2, including clamp spring and terminal nut 5, the clamp spring includes connecting portion 1, clamp spring terminal 2 and wiring portion 3 are located the both ends of connecting portion 1 respectively, connecting portion 1, clamp spring terminal 2 and wiring portion 3 three are by the integrative book system shaping of equal thickness lamellar body (can realize synchronous installation like this, can promote the electric properties of electrically conductive return circuit again), wiring portion 3 is equipped with a through-hole, be equipped with a screw hole that runs through from top to bottom in the middle of the terminal nut 5, the screw hole is made by the tapping after terminal nut 5 punches a hole and turns up. The terminal nut 5 is connected below the wiring part 3, specifically, a plurality of riveting holes are formed around the through hole of the wiring part 3, the upper surface of the substrate 7 is connected with a plurality of riveting feet 6 corresponding to the riveting holes one by one (or the lower surface of the wiring part 3 around the through hole is connected with a plurality of riveting feet 6, a plurality of riveting holes corresponding to the riveting feet 6 one by one are formed around the threaded hole of the substrate 7), the terminal nut 5 and the wiring part 3 of the clamping spring are connected through interference fit of the corresponding riveting feet 6 and the hole shaft of the riveting holes, the threaded hole of the terminal nut 5 is coaxially communicated with the through hole of the wiring part 3, and the wiring screw 4 matched with the electric connecting piece is locked in the threaded hole from top to bottom.

In the prior art, when the terminal nut 5 and the clamp spring which are separated from each other are locked, the clamp spring is broken when the torsion force is large, and the structure that the terminal nut 5 and the clamp spring are connected into a whole can transfer part of the force born by the clamp spring to the clamp spring through the punching riveting point of the clamp spring and the terminal nut 5, and then the clamp spring is transferred to the base of the relay socket, so that the clamp spring is prevented from being broken.

Referring to fig. 1, the terminal nut 5 includes a square sheet-shaped substrate 7, a flanging hole formed by punching the middle of the substrate 7 from top to bottom, and a plurality of riveting pins 6 connected to the upper surface of the substrate 7, and the flanging hole is tapped to form the threaded hole. The connection mode between the riveting pin 6 and the terminal nut 5 is various, such as welding, integral forming, etc., even a through hole can be formed on the terminal nut 5, the riveting pin 6 and the terminal nut 5 are connected through hole shaft interference fit, and the riveting pin 6 can be formed by punching the terminal nut 5. Since the riveting pin 6 is small, if it is a separate component, the assembly of the riveting pin 6 and the terminal nut 5 will be difficult to achieve, so the riveting pin 6 in this embodiment is a solid column integrally formed with the terminal nut 5, the connection is more firm, there is no risk of disconnection, and the assembly step can be simplified.

The number of the caulking pins 6 may be set to 1, 2, 3, 4 or more. The riveting feet 6 can be arranged at any position around the threaded holes, and are preferably arranged at corners of the square base plate 7, so that four edges of the square base plate 7 are close to the threaded holes as much as possible, the area of the base plate 7 is reduced, materials are saved, and cost is reduced. In this embodiment, as shown in fig. 1, two opposite angles of the square substrate 7 of the terminal nut 5 are respectively provided with one riveting pin 6, and the terminal nut 5 and the wiring portion 3 of the clamping spring form opposite angle punching and riveting connection, so that under the condition of meeting the strength requirement, not only can torsion be well transferred to the clamping spring, but also the number of the riveting pins 6 is less, and the manufacturing cost is lower. Of course, in other embodiments, three or four corners of the terminal nut 5 may be punch-riveted to the wire connecting portion 3. In a further preferred scheme, two riveting feet 6 of the terminal nut 5 are positioned on the same straight line with the threaded hole, so that torsion force born by the two riveting feet 6 is equivalent, the structure is more stable, and the terminal nut is not easy to damage.

Referring to fig. 2 and 3, a punching and riveting hole is formed in the wiring portion 3 corresponding to each riveting pin 6, and the punching and riveting connection between the terminal nut 5 and the wiring portion 3 is achieved through interference fit between the corresponding riveting pin 6 and a hole shaft of the punching and riveting hole. The threaded hole of the terminal nut 5 is coaxially matched with the through hole of the wiring part 3, and the threaded part of the wiring screw 4 can be screwed into the flanging threaded hole of the terminal nut 5 from top to bottom. When the terminal nut 5 is locked and matched by the wiring screw 4, the terminal nut 5 and the clamping spring are punched and riveted together, so that torsion force born by the terminal nut 5 is simultaneously transmitted to the clamping spring through each riveting pin 6, and meanwhile, the force is further transmitted, and the extrusion force of the terminal nut 5 to the base is further reduced.

The screw hole of terminal nut 5 is for punching a hole the turn-ups back tapping form, consequently, terminal nut 5 can adopt the sheet preparation of thickness thinner, and then reduce part material cost, and the turn-ups can also improve terminal nut 5's screw tooth quantity and then promote terminal nut 5 the moment of torsion that can bear simultaneously, and terminal nut 5 of this embodiment adopts the thickness to be no greater than 0.8 mm's base plate can satisfy the demand.

In addition, after the binding screw 4 is completely loosened, the terminal nut 5 and the clamping spring are punched and riveted together, so that the terminal nut 5 cannot displace, and further poor locking and matching caused by misalignment of the binding screw 4 and the terminal nut 5 during re-locking are avoided.

Referring to fig. 1, the clip terminal 2 includes a U-shaped connecting base 8 and two opposite spring pieces 12 respectively connected to upper edges of two opposite side walls of the U-shaped connecting base 8. Connecting portion 1 includes horizontal segment 9 and vertical section 10, wiring portion 3 is connected to horizontal segment 9's first end, vertical section 10's lower extreme is connected to the second end, U-shaped connecting seat 8's middle part lower limb is connected to vertical section 10's upper end, compare the lower limb of arbitrary lateral wall at U-shaped connecting seat 8 with connecting portion 1 connection in prior art, connecting portion 1 connects at U-shaped connecting seat 8's middle part lower limb can carry out better support to clamp spring terminal 2, make clamp spring terminal 2 structure more firm, be difficult for warp because of the multiple plug of relay pin.

The vertical section 10 is formed by 90-degree bending of a cantilever extending from the side edge of the second end of the horizontal section 9, and the second end of the horizontal section 9 is staggered with the U-shaped connecting seat 8, so that a U-shaped connecting seat 8 supporting column and an auxiliary supporting column can be arranged on the base of the relay socket, the U-shaped connecting seat 8 is propped against the upper surface of the U-shaped connecting seat 8 supporting column, and the second section of the horizontal section 9 is propped against the upper surface of the auxiliary supporting column, so that the clamp spring of the electric connector provided by the embodiment can obtain double support, and the clamp spring terminal 2 can be prevented from being sunken due to the application of pressure when a pin of the relay is inserted into the clamp spring terminal, the installation stability of the clamp spring terminal 2 is further improved, and the electric connection reliability between the pin of the relay and the clamp spring terminal 2 is further improved. In addition, the horizontal segment 9 is provided with a reinforcing rib 11 extending along the length direction thereof, so as to avoid deformation of the horizontal segment 9.

The embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and therefore all other embodiments obtained by those skilled in the art without making creative efforts are intended to fall within the protection scope of the present utility model.

Claims

1. An electrical connector for a relay socket, characterized by: the clamp spring comprises a connecting part, a clamp spring terminal and a wiring part, wherein the clamp spring terminal and the wiring part are respectively connected to two ends of the connecting part, the wiring part is provided with a through hole, the terminal nut comprises a substrate, and a threaded hole corresponding to the through hole of the wiring part is arranged in the middle of the substrate;

2. The electrical connector of claim 1, wherein: the base plate is a square flaky base plate, the upper surfaces of two opposite angles of the base plate are respectively connected with one riveting pin, two riveting holes are formed in the positions, corresponding to the two riveting pins, of the connecting part of the clamping spring, and the terminal nuts and the wiring part of the clamping spring form opposite angle punching riveting connection.

3. The electrical connector of claim 2, wherein: the two riveting pins and the threaded holes are positioned on the same straight line.

4. The electrical connector of claim 2, wherein: the riveting pin is a solid columnar body integrally formed with the substrate.

5. The electrical connector of claim 1, wherein: the threaded hole is formed by punching and flanging in the middle of the base plate and then tapping.

6. The electrical connector of claim 5, wherein: the substrate is 0.8mm thick.

7. The electrical connector of claim 1, wherein: the spring clamping terminal comprises a U-shaped connecting seat and two opposite reeds which are respectively connected with the upper edges of two opposite side walls of the U-shaped connecting seat, wherein the connecting part comprises a horizontal section and a vertical section, a first end of the horizontal section is connected with a wiring part, a second end of the horizontal section is connected with the lower end of the vertical section, and the upper end of the vertical section is connected with the lower edge of the middle part of the U-shaped connecting seat.

8. The electrical connector of claim 7, wherein: the vertical section is formed by bending a cantilever extending from the side edge of the second end of the horizontal section by 90 degrees, and the second end of the horizontal section is staggered with the U-shaped connecting seat.

9. The electrical connector of claim 7, wherein: the horizontal section is provided with a reinforcing rib extending along the length direction of the horizontal section.

10. The electrical connector of claim 1, wherein: the connecting part, the clamping spring terminal and the wiring part are integrally folded and formed by equal-thickness sheet-shaped bodies.