CN202127118U

CN202127118U - Plug-in type cable connector

Info

Publication number: CN202127118U
Application number: CN201120211913XU
Authority: CN
Inventors: 麦朗辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-22
Filing date: 2011-06-22
Publication date: 2012-01-25
Anticipated expiration: 2021-06-22

Abstract

The utility model provides a plug-in type cable connector, which comprises a connector body, a guide pyramid, a wiring terminal, a plug device and a press device. One end of the wiring terminal is inserted inside the guide pyramid and extends outwards along the bottom of the guide pyramid, and the extending portion is matched and integrally connected with the plug device. The wiring terminal is fixedly inserted into the connector body through the plug device. The plug-in type cable connector has the advantages of being simple in structure, convenient in installment and operation, low in cost, good in overall strength, safe, reliable and capable of resisting water and retarding flame and can be used in any circumstance without other auxiliary parts. The plug-in type cable connector can be applied to an oil type transformer, an oil switch, an SF6 electric appliance and is especially suitable for underground electric appliances.

Description

A kind of plug-in cable connector

Technical field

The utility model relates to the technical field of power cable, refers in particular to a kind of plug-in cable connector.

Background technology

The oil change of present power cable and the following electric pressure of 20kV, oil switch, when the SF6 electric equipment is connected; The general compound mode that all adopts outer bevel-type epoxy resin socket+internal cone type silicone rubber seal plug needs the cooperation of annexes such as binding post, silicon rubber stress cone, shrinkage silicone rubber sleeve and insulating tape during installation.The used parts of above-mentioned cable connected mode are more, mounting process is complicated, assembling is difficult and with high costs.There is comparatively serious defective simultaneously: the first, bad mechanical strength, especially tear resistance is very poor.Because between silicone rubber seal plug and the epoxy resin socket is interference fit, is in for a long time and collapses tight state, in case receive the external force effect to be easy to break.The second, fire protecting performance is poor.Mostly the accessory of above-mentioned cable connected mode is the silicon rubber prefabrication, and silicon rubber has combustibility.The 3rd, water resistance is poor.The whole degree of protection of above-mentioned cable connected mode can only reach IP67, can not directly be used for the underground type electric equipment or the place of water logging hidden danger is arranged.Must add seal closure and seal if be used for above-mentioned environment, reach good waterproof effect.The 4th, fail safe is low.Silicone rubber seal plug in the above-mentioned cable connected mode be divided into tangible type with can not touch-type two kinds, but the layman is difficult to differentiate, and adds to lack effective ground protection on the plug, is easy to cause electric shock accidents.When electric shock accidents uses, must on equipment, install protective cover additional protects whole cable joint position.

Summary of the invention

The purpose of the utility model is to overcome the deficiency of prior art, provide a kind of simple in structure, fitting operation is easy, with low cost, good integral strength, reliability are high, have waterproof, fire resistance, need not to increase the plug-in cable connector that other auxiliary member just can use under various environmental conditions.

For realizing above-mentioned purpose; The technical scheme that the utility model provided is: a kind of plug-in cable connector; It comprises connector body, guiding cone, binding post, plug device, hold down gag, and wherein, an end of binding post is inserted in the guiding cone; And pass the guiding cone base and stretch out, and match with plug device and closely link into an integrated entity in its extension; Binding post fixedly is inserted in the connector body through plug device.

Described connector body external structure is flanged (FLGD) segmentation cylinder, and is provided with the full skirt that increases creepage distance at the cylinder end; Its internal structure is divided into three sections of upper, middle and lower; Its epimere is the short cylindricality duct of length; Its stage casing is the long big up and small down taper duct of length, and its hypomere is pre-buried section, is embedded with the cup-shaped socket device with the same axis in cylindricality duct and taper duct in the connector body bottom; Socket device is by the conductive metallic material manufacturing, and its surface all is coated with silver conductive film, and socket device upper end communicates with the taper duct, and the outside of connector body is exposed in its lower end, be provided with in it one be connected with electric equipment screw.

The upper end of described guiding cone external structure is flanged (FLGD) segmentation cylinder, and its lower end is big up and small down cone, and is provided with the multiple tracks annular groove on the surface of cylinder and cone, and is embedded with the elastic caoutchouc circle in the groove; Its internal structure is divided into three sections of upper, middle and lower; Its epimere is the long cylindricality duct of length; Its stage casing is the short big up and small down taper duct of length, and its hypomere is pre-buried section, is embedded with the annular metal swivel nut with the same axis in cylindricality duct and taper duct at guiding cone end; The swivel nut upper end communicates with the taper duct, and the outside that the cone that leads is exposed in its lower end makes the duct communicate with the external world.

The front end of described binding post is the cylinder that is provided with the cylindricality duct in the body, and its end is a screw-rod structure, and binding post is placed in the end of cable core through the cylindricality duct in the cylinder.

The front end of described plug device external structure is the square flange of band fillet, and its end is the cylinder that the surface is provided with annular groove, and in groove, is embedded with the watchband type spring touch finger; Its internal structure on end face of flange, be provided with one extend to the column body stage casing screw.

Described hold down gag is made up of pressing plate and capping two parts, and pressing plate and capping are integrated through screw buckle.

Described connector body and guiding cone are by high-intensity fire-retardant solid insulating material manufacturing.

Described binding post and plug device are by the conductive metallic material manufacturing, and its surface all is coated with silver conductive film.

Described hold down gag is by high-intensity anti-corrosion metal material manufacturing.

Described watchband type spring touch finger is by the beryllium copper manufacturing.

The utility model is compared with prior art: have simple in structure, fitting operation is easy, with low cost, good integral strength, safe and reliable and waterproof, fire-retardant advantage, and need not to increase other auxiliary member and just can under various environmental conditions, use.Be applicable on oily change, oil switch, the SF6 electric equipment, be particluarly suitable for installing and using on the electric equipment of underground type.

Description of drawings

Fig. 1 is the overall structure sketch map of the utility model.

Fig. 2 is the structural representation of the cable plug body of the utility model.

Fig. 3 is the cutaway view of Fig. 2.

Fig. 4 is the structural representation of the connector body of the utility model.

Fig. 5 is the cutaway view of Fig. 4.

Fig. 6 is the structural representation of the guiding cone of the utility model.

Fig. 7 is the cutaway view of Fig. 6.

Fig. 8 is the structural representation of the binding post of the utility model.

Fig. 9 is the structural representation of the plug device of the utility model.

Figure 10 is the structural representation of gland of the hold down gag of the utility model.

Figure 11 is the structural representation of pressing plate of the hold down gag of the utility model.

Embodiment

Below in conjunction with specific embodiment the utility model is described further.

Shown in accompanying drawing 1 to accompanying drawing 11; The preferred embodiment of the utility model includes connector body 1, guiding cone 2, binding post 3, plug device 4, hold down gag 5; Wherein, One end of binding post 3 is inserted in the guiding cone 2, and passes guiding cone 2 bottoms and stretch out, and matches with plug device 4 and closely link into an integrated entity in its extension; Binding post 3 fixedly is inserted in the connector body 1 through plug device 4.

Described connector body 1 is by high-intensity fire-retardant solid insulating material manufacturing, and its external structure is flanged (FLGD) segmentation cylinder, and is provided with the full skirt 8 that increases creepage distance at the cylinder end; Its internal structure is divided into three sections of upper, middle and lower; Its epimere is the short cylindricality duct 9 of length; Its stage casing is the long big up and small down taper duct 10 of length; Its hypomere is pre-buried section, is embedded with the cup-shaped socket device 11 with cylindricality duct 9 and taper duct 10 same axis in connector body 1 bottom; Socket device 11 is by the conductive metallic material manufacturing, and its surface all is coated with silver conductive film, and socket device 11 upper ends communicate with taper duct 10, and it is outside that connector body 1 insulating material is exposed in its lower end, be provided with in it one be connected with electric equipment screw 12.During installation:, make on its housing that is fixed on power equipment, and its lower end is immersed in the dielectric, and is fixedly connected with electric equipment through the screw on the socket device 11 through to the sealing of connector body 1 upper flange part with compress.

Described guiding cone 2 is by high-intensity fire-retardant solid insulating material manufacturing; The upper end of its external structure is flanged (FLGD) segmentation cylinder; Its lower end is big up and small down cone, and is provided with multiple tracks annular groove 13 on the surface of cylinder and cone, and is embedded with elastic caoutchouc circle 14 in the groove 13; Its internal structure is divided into three sections of upper, middle and lower; Its epimere is the long cylindricality duct 15 of length; Its stage casing is the short big up and small down taper duct 16 of length; Its hypomere is pre-buried section, is embedded with the annular metal swivel nut 17 with cylindricality duct 15 and taper duct 16 same axis at guiding cone 2 ends; Swivel nut 17 upper ends communicate with taper duct 16, and the outside that guiding cone 2 insulating material are exposed in its lower end makes the duct communicate with the external world.During installation: its damaged surface and cone surface form matched in clearance more closely with connector body 1 inner cylindricality cell walls and taper cell walls; And elastic caoutchouc circle 14 sides in the groove 13 and above-mentioned cell walls form interference fit very closely, thereby reach good insulation performance, waterproof effect.Guiding cone 2 is core components of whole power cable connector.It is the carrier that the cable body is fixed, sealed, and also is the mounting fixing parts of plug device 4.The cone configuration design that it is unique, the discharge of air and the area of effectively reducing friction in connector body 1 duct when helping inserting, make the plug operation more easily, more smooth and easy.

Described binding post 3 is by the conductive metallic material manufacturing; Its surface is coated with silver conductive film; Binding post 3 uses as the auxiliary equipment of guiding cone 2, and its front end is the cylinder that is provided with the cylindricality duct in the body, and its end is a screw-rod structure; And binding post 3 is placed in the end of cable core 18 through the cylindricality duct in the cylinder, adopts the mode of colding pressing that it and cable core are linked together securely.Above-mentioned binding post adopts integrated, standardized production, possesses the reliability and the convenience of connection simultaneously again.

Described plug device 4 is by the conductive metallic material manufacturing; Its surface is coated with silver conductive film; Plug device 4 uses as the auxiliary equipment of guiding cones 2, with the end of binding post 3 matching and fixing in guiding cone 2, is to realize the critical component that is electrically connected or separates between power cable and electric equipment; The front end of its external structure is the square flange of band fillet, and its end is the cylinder that the surface is provided with annular groove, and in groove, is embedded with the watchband type spring touch finger of being made by beryllium copper 21; Its internal structure on end face of flange, be provided with one extend to the column body stage casing screw 22.During installation: the watchband type spring touch finger 21 on the plug device 4 forms interference fit very closely with the hole wall of connector body 1 bottom socket device 11; Watchband type spring touch finger 21 has better elastic, conductivity, fatigue performance, guarantees the continuity and the reliability that are electrically connected.Simultaneously the slidingtype of 11 uniquenesses of plug device 4 and socket device is connected design, make plug operate more easily, more smooth and easy.Above-mentioned plug device adopts integrated, standardized production.

Described hold down gag 5 is by high-intensity anti-corrosion metal material manufacturing, includes pressing plate 6 and capping 7 two parts, and pressing plate 6 and capping 7 are integrated through screw buckle.The parts of hold down gag 5 are by the mold integral moulding; Its integral body possesses good sealing and water resistance; Except the first road barrier as the cable connector waterproof; Because it wraps up the exposed parts of cable connector fully, also be a good earth protective device simultaneously, improved the fail safe of operation greatly.

Install and use the process first step: connector body 1 through 6 pairs of flange sections of pressing plate sealing and compress, make on its housing that is fixed on power equipment, its lower end is immersed in the dielectric, and is fixedly connected with electric equipment through the screw 12 on the socket device 11.Second step: cable is installed; Cable body 19 is introduced in the

duct

15,16 in guiding cone 2 bodies in the good binding post of its core 18 end crimping 3 backs; And utilize the terminal screw-rod structures that are provided with of binding post 3: the screw rod rear portion cooperate with guiding cone 2 interior swivel nuts 17 with cable body 18 be fixed in duct 15, within 16; And anterior stretch out swivel nut 17 outside with plug device 4 on screw 22 be connected and be integral, make plug device 4 be fixed in the end of guiding cone 2.At last injection can quick-setting at normal temperatures flame retardant type fluid insulation material 20 in the

duct

15,16 of guiding cone 2, fills the space between

duct

15,16 and the cable body 19, construction good insulation performance, waterproof effect.After solidifying, insulating material 20 make cable body 19 and guiding cone 2 be combined into a high-intensity cable plug body securely.This cable plug body inserts in the

duct

9,10 of connector body 2; Utilize the hole wall of watchband type spring touch finger 21 and connector body 1 bottom socket device 11 on the plug device 4 to form interference fit very closely, realize being electrically connected between power cable and electric equipment.And elastic caoutchouc circle 14 sides in its damaged surface and the cone surface upper groove 13 form interference fit very closely with 9,10 cell walls respectively, reach good insulation performance, waterproof effect.The 3rd goes on foot: capping 7 and pressing plate 6 are fastened, the flange section on the guiding cone 2 in the cable plug body 23 is sealed and compresses, cable plug body and connector body 1 are closely linked into an integrated entity, thereby constitute a complete power cable connector.

The embodiment of the above as the preferred embodiment of the utility model, is not the practical range that limits the utility model with this only, so the variation that all structures according to the utility model, shape, principle are done all should be covered by in the protection range of the utility model.

Claims

1. plug-in cable connector; It is characterized in that: it includes connector body (1), guiding cone (2), binding post (3), plug device (4), hold down gag (5); Wherein, One end of binding post (3) is inserted in guiding cone (2), and passes guiding cone (2) bottom and stretch out, and matches with plug device (4) and closely link into an integrated entity in its extension; Binding post (3) fixedly is inserted in the connector body (1) through plug device (4).

2. a kind of plug-in cable connector according to claim 1 is characterized in that: connector body (1) external structure is flanged (FLGD) segmentation cylinder, and is provided with the full skirt (8) that increases creepage distance at the cylinder end; Its internal structure is divided into three sections of upper, middle and lower, and its epimere is the short cylindricality duct (9) of length; Its stage casing is the long big up and small down taper duct (10) of length; Its hypomere is pre-buried section, is embedded with the cup-shaped socket device (11) with the same axis in cylindricality duct (9) and taper duct (10) in connector body (1) bottom; Socket device (11) is by the conductive metallic material manufacturing; Its surface all is coated with silver conductive film; Socket device (11) upper end communicates with taper duct (10), and the outside of connector body (1) is exposed in its lower end, be provided with in it one be connected with electric equipment screw (12).

3. a kind of plug-in cable connector according to claim 1; It is characterized in that: the upper end of guiding cone (2) external structure is flanged (FLGD) segmentation cylinder; Its lower end is big up and small down cone; And be provided with multiple tracks annular groove (13) on the surface of cylinder and cone, and be embedded with elastic caoutchouc circle (14) in the groove (13); Its internal structure is divided into three sections of upper, middle and lower, and its epimere is the long cylindricality duct (15) of length; Its stage casing is the short big up and small down taper duct (16) of length; Its hypomere is pre-buried section, is embedded with the annular metal swivel nut (17) with the same axis in cylindricality duct (15) and taper duct (16) at guiding cone (2) end; Swivel nut (17) upper end communicates with taper duct (16), and the outside that guiding cone (2) is exposed in its lower end makes the duct communicate with the external world.

4. a kind of plug-in cable connector according to claim 1; It is characterized in that: the front end of binding post (3) is the cylinder that is provided with the cylindricality duct in the body; Its end is a screw-rod structure, and binding post (3) is placed in the end of cable core (18) through the cylindricality duct in the cylinder.

5. a kind of plug-in cable connector according to claim 1; It is characterized in that: the front end of plug device (4) external structure is the square flange of band fillet; Its end is the cylinder that the surface is provided with annular groove, and in groove, is embedded with watchband type spring touch finger (21); Its internal structure on end face of flange, be provided with one extend to the column body stage casing screw (22).

6. a kind of plug-in cable connector according to claim 1 is characterized in that: hold down gag (5) is made up of pressing plate (6) and capping (7) two parts, and pressing plate (6) and capping (7) are integrated through screw buckle.

7. a kind of plug-in cable connector according to claim 1 is characterized in that: connector body (1) and guiding cone (2) are by high-intensity fire-retardant solid insulating material manufacturing.

8. a kind of plug-in cable connector according to claim 1 is characterized in that: binding post (3) and plug device (4) are by the conductive metallic material manufacturing, and its surface all is coated with silver conductive film.

9. a kind of plug-in cable connector according to claim 1 is characterized in that: hold down gag (5) is by high-intensity anti-corrosion metal material manufacturing.

10. a kind of plug-in cable connector according to claim 1 is characterized in that: watchband type spring touch finger (21) is by the beryllium copper manufacturing.