CN204885474U - Take screw hold -down mechanism's electric wire connector - Google Patents

Abstract

The utility model relates to a take screw hold -down mechanism's electric wire connector. Go up the gland nut that the electric wire can be locked including an electric wire hookup body of taking screw hold -down mechanism and cover at the electric wire hookup body, be equipped with on this electric wire hookup body that an ability is opened or the skirt of a crimple form section of thick bamboo under gland nut's effect. The utility model discloses a screw extrudees the principle, and it forms the hookup of electric wire and connector and fix on electric wire conductor's surface to extrude the electric wire connector through gland nut to make connector and electric wire form the contact face that is greater than electric wire cross sectional area. Can make connector and electric wire realize than the bump contact, and electric wire and connector are difficult for making contact surface expose among the air because of thermal energy or mechanical effect to effectively reduce the contact surface's between electric wire and connector contact resistance, and the contact resistance increase that leads to because of the thermal deformation of contact surface, the production of contact surface joule heat when reducing the circuit operation reduces because of the ageing possibility that leads to the conflagration of electric wire.

Description

A kind of electric wire connecting component with screw hold-down mechanism

Technical field

The present utility model relates to a kind of electric wire connecting component, is specifically related to a kind of band screw hold-down mechanism

Electric wire connecting component.

Background technology

In the connection of existing household power electric wire, some wires are twisted together to form connection by people, and the terminals that electric wire and switch or socket then utilize screw electric wire to be fixed on switch or socket are formed and connect.In said wires connecting mode, for wire cross-sectional is long-pending, effective contact area of the terminals of electric wire and electric wire or electric wire and combined socket and switch is less, and contact resistance is larger.Therefore when big current passes through, wiring end points will produce a large amount of Joule heat, metal cords thermal deformation because of the thermogenetic thermal expansion of joule, and the high temperature that Joule heat causes simultaneously also exacerbates the oxide etch effect of air to wire surface.Due to this distortion and corrosion, terminal contact resistance increases further, and terminals heating is more severe, and accelerates the aging of the insulating barrier near terminals, and cause wire short-circuiting, more severe patient then causes fire.

Industrial high-power electric appliance then have employed line company's fitting, therefore not easily causes electric wire fire.But the general preparation technology's more complicated of industrial electric apparatus connector, needs specific purpose tool to realize, install so these connectors are not suitable for household power.

Utility model content

The utility model mainly solves the technical problem existing for prior art; Provide a kind of employing screw extrusion principle, by screw hold-down mechanism, electric wire connecting component extrusion is formed the connection of electric wire and connector with fixing on the surface of wire conductor, and make connector and electric wire form the effective contact-making surface being greater than wire cross-section area.Connector and electric wire can be made to realize larger area by this screw hold-down mechanism to contact, and electric wire and connector not easily make contact surface be exposed among air because of thermal expansion or mechanism, thus effectively reduce the contact resistance of the contact surface between electric wire and connector, and the contact resistance that contact surface causes because of thermal deformation increases, reduce the generation of contact-making surface Joule heat when circuit runs, reduce a kind of electric wire connecting component with housing pin causing the possibility of fire because electric wire is aging.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:

At above-mentioned a kind of electric wire connecting component with screw hold-down mechanism, comprise an electric wire insertion end; Described electric wire insertion end is the electric wire connected body of band screw hold-down mechanism, and this electric wire connected body is skirt barrel structure, for electric wire penetrates hole and from top to bottom aperture is constant inside this skirt barrel structure, is external screw thread outside skirt barrel structure; Described skirt cylinder is cylinder metallic object, increases along the axial diameter smooth of cylinder metallic object; Described skirt cylinder is in axial direction provided with at least one retraction slot, and skirt cylinder can shrink under the effect of screw hold-down mechanism; Skirt cylinder one end connects electric wire, and another section has the connector connecting other electrical equipment or electric wire.

At above-mentioned a kind of electric wire connecting component with housing pin, it is characterized in that, described screw hold-down mechanism is made up of skirt cylinder and the nut being enclosed within skirt drum outer wall, and rotating nut can make nut move axially along skirt cylinder, and causes through wires hole one section of cross-sectional area reduction.

Therefore, the utility model tool has the following advantages: adopt screw extrusion principle, by screw hold-down mechanism, electric wire connecting component extrusion is formed connecting and fixing of electric wire and connector on the surface of wire conductor, and make connector and electric wire form the effective contact-making surface being greater than wire cross-section area.Connector and electric wire can be made to realize larger area by this extrusion screw mechanism to contact, and electric wire and connector not easily make contact surface be exposed among air because of thermal expansion or mechanism, thus effectively reduce the contact resistance of the contact surface between electric wire and connector, and the contact resistance that contact surface causes because of thermal deformation increases, reduce the generation of contact-making surface Joule heat when circuit runs, reduce the possibility causing fire because electric wire is aging.

Accompanying drawing explanation

Fig. 1 is the perspective view of the electric wire connected body with screw hold-down mechanism in the utility model.

Fig. 2 is the perspective view of clamp nut in the utility model.

Fig. 3 a is the structural representation of the 1st step in embodiment use procedure.

Fig. 3 b is the structural representation of the 2nd step in embodiment use procedure.

Fig. 3 c is the structural representation of the 3rd step in embodiment use procedure.

Fig. 3 d is the structural representation of the 4th step in embodiment use procedure.

Embodiment

Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment:

The utility model comprises an electric wire insertion end; Described electric wire insertion end is the electric wire connected body of band screw hold-down mechanism, and this electric wire connected body is skirt barrel structure, for electric wire penetrates hole and from top to bottom aperture is constant inside this skirt barrel structure, is external screw thread outside skirt barrel structure; Described skirt cylinder is cylinder metallic object, increases along the axial diameter smooth of cylinder metallic object; Described skirt cylinder is in axial direction provided with at least one retraction slot, and skirt cylinder can shrink under the effect of screw hold-down mechanism; Skirt cylinder one end connects electric wire, and another section has the connector connecting other electrical equipment or electric wire; Described screw hold-down mechanism is a clamp nut, is enclosed within skirt drum outer wall.

During use,

1, first clamp nut 6 is threaded onto electric wire union end, makes the electric wire of electric wire connected body penetrate end 2 and be in relaxation state;

2, electric wire is inserted electric wire and penetrate hole 5;

3, by tail end from clamp nut 6 to electric wire union end rotate skirt barrel dliameter is reduced to tightening thus making electric wire penetrate hole 5;

4, until electric wire is locked at electric wire by clamp nut 6 penetrates in hole 5, complete whole locking process.

Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.

Although more employ electrical equipment link 1 herein, electric wire penetrates end 2, skirt cylinder 3, retraction slot 4, electric wire penetrate the term such as hole 5, clamp nut 6, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.

Claims (2)

1. the electric wire connecting component with screw hold-down mechanism, is characterized in that, comprises an electric wire insertion end; Described electric wire insertion end is the electric wire connected body of band screw hold-down mechanism, and this electric wire connected body is skirt barrel structure, for electric wire penetrates hole and from top to bottom aperture is constant inside this skirt barrel structure, is external screw thread outside skirt barrel structure; Described skirt cylinder is cylinder metallic object, increases along the axial diameter smooth of cylinder metallic object; Described skirt cylinder is in axial direction provided with at least one retraction slot, and skirt cylinder can shrink under the effect of screw hold-down mechanism; Skirt cylinder one end connects electric wire, and another section has the connector connecting other electrical equipment or electric wire.

2. a kind of electric wire connecting component with screw hold-down mechanism according to claim 1, it is characterized in that, described screw hold-down mechanism is made up of skirt cylinder and the nut being enclosed within skirt drum outer wall, and rotating nut can make nut move axially along skirt cylinder, and causes through wires hole one section of cross-sectional area reduction.