A euro-style front joint

Abstract

The utility model relates to a kind of European front joints.The technical problem to be solved by the utility model is to provide a kind of European front joints.The technical scheme adopted by the utility model: including front joint shell, cable assembly, clamping locking sleeve, cable clamping piece, the front joint shell is equipped with the front joint butt joint portion of transverse arrangement and the cable placement portion of vertical arrangement and with The front joint butt joint mouth is connected, the front joint butt joint portion is equipped with front joint butt joint mouth, cable placement portion is equipped with the cable inlet of with The front joint butt joint mouth is communicated, cable assembly includes cable head, copper nose and stress cone sleeve.The utility model has the advantages that: cable clamping piece is tightened on cable placement portion by clamping locking sleeve, so that clamping tooth is pierced on the outer skin of cable head, to form clamping force, effectively improve the locking force of cable assembly, prevent the force gravity from transferring to the connecting place of copper nose, reduce stress concentration, to improve the stability and service life of European front joint.

Description

Technical Field

[0001] This utility model relates to a European-style front connector. Background Technology

[0002] European-style front connectors are commonly used connection termination structures between cables and electrical equipment, widely applied in the connection of medium and high voltage cable lines with switchgear, ring main units, and other electrical equipment. Their main function is to reliably secure the cable within the connector housing and achieve a conductive connection with the electrical equipment port via copper lugs, thereby ensuring the safe and stable operation of the power system. European-style front connectors typically consist of a connector housing, cable assembly, locking sleeve, and clamping components. However, existing European-style front connectors still have the following problems in practical use: In traditional structures, the cable is mainly fixed by a single clamping component or screw, concentrating the stress point at the copper lug at the cable's front end. This can easily lead to stress concentration, causing excessive stress at the connection between the copper lug and the electrical equipment port, posing a risk of loosening or damage. Utility Model Content

[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a European-style front connector.

[0004] The technical solution adopted by this utility model of a European-style front connector is as follows: It includes a front connector housing, within which a horizontally arranged front connector mating portion and a vertically arranged cable insertion portion communicating with the front connector mating portion are provided. The front connector mating portion contains a front connector mating interface, and the cable insertion portion contains a cable insertion inlet communicating with the front connector mating interface. The feature is that it further includes a cable assembly, a clamping and locking sleeve, and a cable clamping component. The cable assembly includes a cable head, a copper lug fixed to the front end of the cable head, and a stress cone sleeve fitted over the cable head and interference-fitted with it. The inner wall of the cable insertion inlet is provided with a support for the stress cone sleeve. The housing has a limiting groove, and the cable clamping member has a semi-circular arc structure, including a clamping member central part. The two ends of the clamping member central part extend to form an inner clamping part. The inner clamping part is provided with clamping teeth for clamping the cable head at intervals around the arc. The outer wall of the cable insertion part is provided with a housing threaded part. The middle of the housing threaded part is provided with a housing outer positioning groove for positioning the clamping member central part. The housing outer positioning groove is provided with housing insertion ports for inserting the inner clamping part of the clamping member at intervals around the arc. The inner wall of the clamping locking sleeve is provided with a locking sleeve internal thread that is threadedly connected to the housing threaded part.

[0005] The outer diameter of the cable clamp is larger than the outer diameter of the cable insertion part, and the cable clamp is made of rubber.

[0006] The number of cable clamps is two.

[0007] The clamping and locking sleeve has a regular hexagonal structure.

[0008] The advantages of this European-style front connector are as follows: the cable clamping part is tightened onto the cable insertion part by the clamping locking sleeve, so that the clamping teeth penetrate the outer sheath of the cable head, thereby forming a clamping force, effectively improving the locking force of the cable assembly, preventing the center of gravity of the force from shifting to the connection of the copper lug, reducing stress concentration, and thus improving the stability and service life of the European-style front connector. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0010] Figure 1 This is a schematic diagram of the structure of the European-style front connector of this utility model; Figure 2 This is an exploded view of the European-style front connector of this utility model; Figure 3 This is a schematic diagram of the structure of the front connector housing of this utility model; Figure 4 This is another structural schematic diagram of the front connector housing of this utility model; Figure 5 This is a structural schematic diagram of the cable clamping component of this utility model; Figure 6 This is a schematic diagram of the structure of the clamping and locking sleeve of this utility model. Detailed Implementation

[0011] like Figure 1-6As shown, the European-style front connector of this utility model includes a front connector housing 1, a cable assembly 2, a clamping and locking sleeve 3, and a cable clamping member 8. The front connector housing 1 has a horizontally arranged front connector mating portion 10 and a vertically arranged cable insertion portion 11 that communicates with the front connector mating portion 10. The front connector mating portion 10 has a front connector mating interface 12. The cable insertion portion 11 has a cable insertion port 13 that communicates with the front connector mating interface 12. The cable assembly 2 includes a cable head 5, a copper lug 6 fixed to the front end of the cable head 5, and a stress cone sleeve 7 that is sleeved on the outside of the cable head 5 and interference-fitted with it. The inner wall of the cable insertion port 13 has a housing-internal limiting groove 14 for limiting the stress cone sleeve 7. The cable clamping member 8 has a semi-circular arc structure and includes a clamping member central connection portion 18, with both ends extending... An inner clamping portion 19 is formed, and the inner clamping portion 19 is provided with clamping teeth 20 at intervals around an arc for clamping the cable head 5. The outer wall of the cable insertion portion 11 is provided with a housing thread portion 15. The middle part of the housing thread portion 15 is provided with a housing outer positioning groove 16 for positioning the clamping part 18. The housing outer positioning groove 16 is provided with a housing insertion port 17 at intervals around an arc for inserting the inner clamping portion 19 of the clamping member. The inner wall of the clamping locking sleeve 3 is provided with a locking sleeve inner thread 21 that is threadedly connected to the housing thread portion 15. The cable clamping member 8 is tightened on the cable insertion portion 11 by clamping the locking sleeve 3, so that the clamping teeth 20 pierce the outer sheath of the cable head 5, thereby forming a clamping force, effectively improving the locking force of the cable assembly 2, preventing the center of gravity of the force from shifting to the connection of the copper lug 6, reducing stress concentration, and thus improving the stability and service life of the European-style front connector.

[0012] The outer diameter of the cable clamp 8 is larger than the outer diameter of the cable insertion part 11, ensuring that the clamping locking sleeve 3 can provide an inward clamping force on the cable clamp 8 when tightened. The cable clamp 8 is made of rubber.

[0013] The cable clamping element 8 is in the form of two, forming a reliable clamping force that is symmetrical and stable.

[0014] The clamping and locking sleeve 3 has a regular hexagonal structure, which facilitates tightening.

[0015] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A European-style front connector, comprising a front connector housing (1), wherein the front connector housing (1) is provided with a horizontally arranged front connector mating part (10) and a vertically arranged cable insertion part (11) communicating with the front connector mating part (10), wherein the front connector mating part (10) is provided with a front connector mating part (12), and the cable insertion part (11) is provided with a cable insertion port (13) communicating with the front connector mating part (12), characterized in that: It also includes a cable assembly (2), a clamping locking sleeve (3), and a cable clamping member (8). The cable assembly (2) includes a cable head (5), a copper lug (6) fixed to the front end of the cable head (5), and a stress cone sleeve (7) sleeved outside the cable head (5) and interference-fitted with the cable head (5). The inner wall of the cable insertion inlet (13) is provided with a housing inner limiting groove (14) for limiting the stress cone sleeve (7). The cable clamping member (8) has a semi-circular arc structure, which includes a clamping member middle section (18). The two ends of the clamping member middle section (18) extend to form the clamping member inner clamping section (1). 9) The inner clamping part (19) of the clamping member is provided with clamping teeth (20) for clamping the cable head (5) at intervals around the arc. The outer wall of the cable insertion part (11) is provided with a housing threaded part (15). The middle part of the housing threaded part (15) is provided with a housing outer positioning groove (16) for positioning the middle part (18) of the clamping member. The housing outer positioning groove (16) is provided with a housing insertion port (17) for inserting the inner clamping part (19) of the clamping member at intervals around the arc. The inner wall of the clamping locking sleeve (3) is provided with a locking sleeve inner thread (21) that is threadedly connected to the housing threaded part (15).

2. The European-style front connector according to claim 1, characterized in that: The outer diameter of the cable clamp (8) is larger than the outer diameter of the cable insertion part (11), and the cable clamp (8) is made of rubber.

3. The European-style front connector according to claim 1, characterized in that: The number of cable clamps (8) is two.

4. The European-style front connector according to claim 1, characterized in that: The clamping and locking sleeve (3) has a regular hexagonal structure.

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