CN206422500U - A kind of 35kV high currents inner-cone pluggable cable terminal - Google Patents
A kind of 35kV high currents inner-cone pluggable cable terminal Download PDFInfo
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- CN206422500U CN206422500U CN201621308567.6U CN201621308567U CN206422500U CN 206422500 U CN206422500 U CN 206422500U CN 201621308567 U CN201621308567 U CN 201621308567U CN 206422500 U CN206422500 U CN 206422500U
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- contact site
- cable
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- diameter
- high pressure
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Abstract
The utility model provides a kind of 35kV high currents inner-cone pluggable cable terminal, the cable termination includes integrally formed high pressure contact site (14) and core contact site (15), wherein, high pressure contact site (14) is cylinder, core contact site (15) is a cylinder with counterbore, the diameter of counterbore is slightly less than the diameter on stress cone (6) top, the external diameter of core contact site (15) is slightly less than the external diameter of high pressure contact site (14), and more than the diameter on stress cone (6) top, considerably increase the cross-sectional area of socket electrode (1), high current use condition can be met, simultaneously, multiple projections are provided with the outer wall outer surface of core contact site (15), add the tight ness rating between inner cone socket (2) and socket electrode (1), avoid releasing, add security.
Description
Technical field
The utility model is related to the cable accessory in mesolow transmission system, and more particularly to a kind of 35kV high currents inner cone is inserted
Pull out formula cable termination.
Background technology
35kV inner-cone pluggable cable terminals, are mainly used in the electrical equipments such as electric switch, transformer and service cable
Circuit is connected, and is fixed on the housing of electrical equipment.Its connected mode is external cable through the stress cone in cable termination
After centre bore, conduction is connected through dynamic contactor and the socket electrode reliable contacts being connected with circuit in electrical equipment.
At present, the cable termination products application scope of the domestic specification is from 50mm2-630mm2, more than 630mm2Cable is whole
End is usually to be replaced with 66kV terminal.Raw materials consumption is larger, produces waste, and 66kV small product size is big, is not suitable for electricity
Device switch, the installation of transformer-cabinet and use.
The inside and outside way of contact of dynamic contactor is generally used：Mechanical clasps press the outer of contactor to ensure and cable
The close contact of core, outer wall around the home " watchband type " fingertip to keep the contact with socket electrode to realize." watchband type " is touched
Refer to series copper alloy lamellar machine and add compressing, it provides contact by the elastic deformation of each unit, and forms plug
Formula connected mode, current 35kV inner-cone pluggable cable terminals rated current is 400A, 630A, 800A, is up to 1250A, most
Heavy in section 630mm2。
Above-mentioned 35kV inner-cone pluggable cable terminals have the following disadvantages in manufacture and using practice：1st, only meet
630mm2Following cable is supported the use, and application is small, is not suitable for high current transmission, and mechanical clasps press contactor outer to protect
The process that card is in close contact with cable core withholds machinery and allotment withholding of technology parameter, it is necessary to configure dedicated hydraulic, its
Costly, technique is more numerous；2nd, electrode is used for a long time using aluminum material in epoxy socket, because profile is that rectangle spring is set to it
The machining accuracy and fit precision of groove require higher, and the compression set for easily causing " watchband type " fingertip is used for a long time and contacts
It is bad to produce electric discharge and cause the increase of the failure frequency；3rd, the cable protection pipe of the noisy processing of aluminium type casting moulding outer surface spray, outward appearance is coarse,
Easy trapped fuel is dirty, not easy to clean.
Therefore, need badly and develop a kind of cable termination for being suitable to use safely under the conditions of low-voltage, high-current.
Utility model content
In order to solve the above problems, present inventor has performed studying with keen determination, as a result find：Socket electrode 1 include one into
The high pressure contact site 14 and core contact site 15 of type, wherein, high pressure contact site 14 is cylinder, and core contact site 15 has for one
The cylinder of counterbore, the diameter of counterbore is slightly less than the diameter on the top of stress cone 6, and the external diameter of core contact site 15 is slightly less than high-voltage connecting
The external diameter of contact portion 14, and more than the diameter on the top of stress cone 6, the cross-sectional area of socket electrode 1 is considerably increased, can
High current use condition is met, meanwhile, multiple projections are provided with the outer wall outer surface of core contact site 15, inner cone is added
Tight ness rating between socket 2 and socket electrode 1, it is to avoid release, adds security, so as to complete the utility model.
The purpose of this utility model is to provide a kind of 35kV high currents inner-cone pluggable cable terminal, it is characterised in that
The cable termination includes socket electrode 1, the inner cone socket 2 being sheathed on outside socket electrode 1, is arranged inside socket electrode 1
Dynamic contactor 3, the spring touch finger 4 being sheathed on dynamic contactor 3 outside, the force bearing ring 5 being arranged at below spring touch finger 4, it is arranged at
It is the lower section of force bearing ring 5 and stress cone 6 inside inner cone socket 2, the sealing ring 7 for being sheathed on the lower section of inner cone socket 2, slotting with inner cone
Seat 2 be fixedly connected with cable protection pipe 8 flanges 9, be sheathed on outside compressing member 10 spring 11, be sheathed on cable protection pipe 8
Heat-shrink tube 12 and ground wire 13 below outside, wherein, socket electrode 1 includes integrally formed high pressure contact site 14 and core connects
Contact portion 15, high pressure contact site 14 is cylinder.
Brief description of the drawings
Fig. 1 shows the 35kV high current inner-cone pluggable cable terminal structural representations that the utility model is provided.
Drawing reference numeral explanation：
1- socket electrodes
2- inner cone sockets
3- moves contactor
4- spring touch fingers
5- force bearing rings
6- stress cones
7- sealing rings
8- cable protection pipes
9- flanges
10- compressing members
11- springs
12- heat-shrink tubes
13- ground wires
14- high pressure contact sites
The screwed holes of 141- second
15- core contact sites
16- cable cores
161- conductor shields
162- insulating barriers
163- insulation screens
164- metal screen layers
17- jackscrews
The screwed holes of 18- first
19- semi-conductive tapes
20- fixtures
21- seals flashing tape
Embodiment
It is described in detail below by the utility model, the characteristics of the utility model and advantage will be with these explanations
And become more apparent from, clearly.
Special word " exemplary " is meant " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although each of embodiment is shown in the drawings
In terms of kind, but unless otherwise indicated, it is not necessary to accompanying drawing drawn to scale.
, it is necessary to explanation in description of the present utility model, term " on ", " under ", " interior ", " outer ", "front", "rear",
The orientation or position relationship of the instruction such as " left side " and " right side " are based on the orientation or position relationship under utility model works state, only
It is to be described for the ease of description the utility model with simplified, rather than indicates or imply that the device or element of meaning must be with spies
Fixed orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " and " the 4th " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
The utility model described below.
According to the utility model, there is provided a kind of 35kV high currents inner-cone pluggable cable terminal, it is characterised in that the cable
Terminal includes socket electrode 1, the inner cone socket 2 being sheathed on outside socket electrode 1, the dynamic contact being arranged inside socket electrode 1
Device 3, the spring touch finger 4 being sheathed on outside dynamic contactor 3, the force bearing ring 5 for being arranged at the lower section of spring touch finger 4, it is arranged at force bearing ring 5
Lower section and stress cone 6 inside the inner cone socket 2, the sealing ring 7 and inner cone socket 2 and electricity that are sheathed on the lower section of inner cone socket 2
Flange 9 that cable protection pipe 8 is fixedly connected, the spring 11 being sheathed on outside compressing member 10, it is sheathed on the outside of cable protection pipe 8 lower section
Heat-shrink tube 12 and ground wire 13, wherein, socket electrode 1 include integrally formed high pressure contact site 14 and core contact site 15,
High pressure contact site 14 is cylinder.
In the utility model, the cable inside the pluggable cable terminal includes cable core 16, conductor
Screen layer 161, insulating barrier 162, insulation screen 163, metal screen layer 164, it is staged stripping layer by layer.
In the utility model, the inner cone socket 2 is a sleeve, and the profile on its top is outside truncated cone-shaped, its underpart
Shape is cylinder, and groove is opened up along its circumference in its underpart outer surface, makes to form projection on the inside of the bottom of inner cone socket 2,
Wherein, its Basolateral is abutted with flange 9, and flange 9 is passed through on the inside of bottom.
In the utility model, on the bottom surface of inner cone socket 2, between the first screwed hole 18 and outer wall, inserted along inner cone
The circumference of seat 2 offers the groove for setting sealing ring 7.
In the utility model, on the side wall of inner cone socket 2, the first spiral shell is opened up along its axial direction by the bottom surface of inner cone socket 2
Pit 18, for being fixedly connected with inner cone socket 2, cable protection pipe 8 and flange 9.
In the utility model, inner cone socket 2 is fixedly connected in the outside cast molding of socket electrode 1 with socket electrode 1,
Preferably, it is non-dismountable.
In the utility model, the core contact site 15 in socket electrode 1 is seamlessly transitted with high pressure contact site 14.
In the utility model is a kind of preferred embodiment, high pressure contact site 14 and core contact site 15 are coaxial.
In the utility model, high pressure contact site 14 is cylinder, and its end sets rounding.
The inventors discovered that, when high pressure contact site 14 is cylinder, the cross section that socket electrode 1 is contacted with high-tension cable
Product is dramatically increased, and suitable for high current, such as 2200A electric current passes through.
In the utility model is a kind of preferred embodiment, a diameter of 90~110mm in upper surface of high pressure contact site 14,
Preferably 100mm.
In the utility model, offered on the top of high pressure contact site 14 multiple for being connected with combined electrical apparatus or transformer
The second screwed hole 141, it is preferable that the second screwed hole 141 be two.
In the utility model, core contact site 15 is a cylinder with counterbore, wherein, the diameter of counterbore is slightly less than
The diameter on the top of stress cone 6.
In the utility model is a kind of preferred embodiment, a diameter of 60~90mm of the counterbore of core contact site 15 is excellent
Elect 70~80mm, such as 74.5mm as.
In the utility model, the external diameter of core contact site 15 is slightly less than the external diameter of high pressure contact site 14, and more than stress
Bore the diameter on 6 tops.
In the utility model is a kind of preferred embodiment, the external diameter of core contact site 15 is 90~110mm, preferably at most
External diameter is 100mm.
In the utility model is a kind of preferred embodiment, it is provided with the outer wall outer surface of core contact site 15 many
Individual projection, so as to inner cone socket 2 and socket electrode 1 be mounted so as to it is more close, it is to avoid release, add security.
In the utility model, the contact surface of the cable core 16 and socket electrode 1 that are installed on inside the cable termination
Product is 800mm2~1000mm2。
In the utility model, the dynamic contactor 3 is hollow sleeve, and it is nested in inside core contact site 15, and
And be sheathed on outside cable core 16, the dynamic top of contactor 3 is equal with the top of cable core 16, moves the bottom of contactor 3 with leading
The top of body screen layer 161 is equal, it is preferable that the dynamic bottom of contactor 3 is slightly above the bottom of core contact site 15.
In the utility model is a kind of preferred embodiment, the wall thickness of the dynamic contactor 3 is 19~20mm, is preferably
19.5mm。
On the outer wall of the dynamic contactor 3, the screw for setting jackscrew 17, human hair of the present invention are radially offered
It is existing, cable core 16 is fixed using jackscrew 17, its simple in construction, easy to manufacture, rapid, cooperation easy to install closely may be used
Lean on, so that product total quality is improved, service life extension, maintenance cost reduction.
In the utility model, a plurality of spring touch finger 4 is arranged with the dynamic outer wall of contactor 3.
Correspondingly, on the outer wall of the dynamic contactor 3, a plurality of ditch for being used to set spring touch finger 4 is opened up along its circumference
Groove, the depth of the groove is 5~15mm, such as preferably 11~14mm, 12mm.
In the utility model, the spring touch finger 4 is multiple, preferably two, it is highly preferred that each spring touch finger energy
Enough carry more than 1000A electric current, preferably more than 1100A electric current.
In the utility model is a kind of preferred embodiment, the spring touch finger 4 is garter spring fingertip, preferably
Use elastic and high conductive silver-plated copper alloy silk.
The inventors discovered that, the deformation of spring touch finger 4 provides the contact of contact point and carries rated current, dynamic heat
Stabling current.
Spring touch finger 4 is under large range of working deformation, and the pressure change of contact point is smaller, and contact resistance variation is small,
Electric performance stablity, in addition, the small variations that the manufacturing tolerance of spring touch finger 4 and fingertip set groove dimensions influence on its electric conductivity
It is very small, meanwhile, its simple in construction, size is small, easy for installation, contact point is more, conduct electricity very well, discharge capacity is big, electronic and heat
Stability is high, abrasion is small, can meet the plug operation needs of more than 20,000 times.
In the utility model, metallic silver layer is coated with the surface of spring touch finger 4.
In the utility model is a kind of preferred embodiment, the external diameter of the spring touch finger 4 is 65mm~85mm, preferably
For 70mm~80mm, such as 75mm；Internal diameter is 50mm~70mm, such as preferably 55mm~60mm, 57.5mm.
In the utility model, force bearing ring 5 is provided with conductor shield 161 and the outer cover of insulating barrier 162.
The top of insulation screen 163 is abutted with the bottom surface of flange 9.Stress cone 6 is provided with the outer cover of insulating barrier 162, is being answered
Power, which bores 6 internal presets, a conducting resinl 61, and the part of conducting resinl 61 is overlapped with insulating barrier 162, another part and insulation screen 163
Overlap joint, the lower end of stress cone 6 passes through flange 9.
In the utility model, semi-conductive tape 19 is wound between insulation screen 163 and metal screen layer 164.
In the utility model, compressing member 10, the top of compressing member 10 are provided with the outer cover of stress cone 6 and semi-conductive tape 19
End is abutted through flange 9 with stress cone 6, two layers of raised neck is provided with the outer wall at the middle part of compressing member 10, described two
Spring 11 is provided between individual neck, the outer cover of compressing member 10 be provided with cable protection pipe 8, the top of cable protection pipe 8 with it is interior
Socket 2 is bored to abut through the part of flange 9.
In the utility model, cable protection pipe 8 is die casting aluminum hull, shell trypsin method F-C paint overcoat, with excellent
Corrosion Protection, non-maintaining, outside light, automatically cleaning improves the product quality of overall terminal.
Heat-shrink tube 12 is arranged with the outer wall of the bottom of cable protection pipe 8, the bottom of heat-shrink tube 12 is slightly above metallic shield
The bottom of layer 164.
Fixture 20 is provided with the lower section of metal screen layer 164, preferably crossed strip, for fixing metal screen layer
164 and the grade part of ground wire 13, the fixture 20 is abutted with metal screen layer 164.
Below fixture 20, sealing flashing tape 21 is wound with outside ground wire 13, for fastening ground wire 13, is increased
The security performances such as strong cable seal, water proofing property.
In the utility model is a kind of preferred embodiment, as shown in figure 1, being the 800mm for switch cubicle2Inner cone is inserted
Formula cable termination is pulled out, wherein,
In prefabricated terminal socket electrode 1, the mesohigh contact site 14 of socket electrode 1 be cylinder, its a diameter of 100mm,
The diameter of bore 74.5mm of core contact site 15.
The external diameter of the silver-plated spring touch finger 4 of external coordination prefabricated spiral is 75mm, and internal diameter is 57.5mm.
The external diameter of dynamic contactor 3 is 74.5mm, its longitudinal center cable core perforation 36.0mm, on the dynamic outer wall of contactor 3, edge
Its radial direction opens up the screw for setting jackscrew 17, and the specification of the screw is M12mm, along its week on the dynamic outer wall of contactor 3
To the groove being further opened with for setting spring touch finger 4, the gash depth is 12mm.
In the utility model is a kind of preferred embodiment, in the aluminum hull outer surface of the cable protection pipe 8, polishing spray
Scribble F-C paint overcoat.
In a kind of embodiment being more highly preferred to of the utility model, the 800mm for switch cubicle2Inner cone plugging formula cable
The assembling process of terminal is：
The sub-assembly of inner cone socket 2 and sealing ring 7-wear cable to be installed is installed inside the flange 9 of switch board housing
Enter heat-shrink tube 12-through the sub-assembly of cable protection pipe 8 and the compressing member 10 of spring 11-stripping cable mount stress cone 6-peace
Attaching ground wire 13-installation force bearing ring 5-assembling screw-contact 4 is dynamic in-stripping cable core 16-installation in embedding slot
Contactor 3 screws jackscrew 17-inserting the dynamic sub-assembly of contactor 3 in socket electrode 1-and fixes cable protection pipe 8-installation heat
The draw 12-be tightened flange bolt.
The 35kV high current inner-cone pluggable cable terminals provided according to the utility model, have the advantages that：
(1) the cable termination manufacturing cost that the utility model is provided is low；
(2) cable termination that the utility model is provided is reliable, can be with 800mm2-1000mm2The supporting installation of cable makes
With；
(3) cable termination that the utility model is provided is easy to install；
(4) cable termination that the utility model is provided can be homogenized field strength.
The utility model is described in detail above in association with embodiment and exemplary example, but these are said
It is bright to be interpreted as to limitation of the present utility model.It will be appreciated by those skilled in the art that without departing from the utility model spirit and
In the case of scope, technical solutions of the utility model and embodiments thereof can be carried out with a variety of equivalencings, modification or improved,
These are each fallen within the range of the utility model.Protection domain of the present utility model is determined by the appended claims.
Claims (10)
1. a kind of 35kV high currents inner-cone pluggable cable terminal, it is characterised in that the cable termination include socket electrode (1),
The outside inner cone socket (2) of socket electrode (1) is sheathed on, the internal dynamic contactor (3) of socket electrode (1) is arranged at, is sheathed on
Move the outside spring touch finger (4) of contactor (3), the force bearing ring (5) being arranged at below spring touch finger (4), be arranged at force bearing ring (5)
Lower section and positioned at the internal stress cone (6) of inner cone socket (2), the sealing ring (7) and inner cone that are sheathed on below inner cone socket (2)
Flange (9) that socket (2) is fixedly connected with cable protection pipe (8), it is sheathed on the outside spring (11) of compressing member (10), is sheathed on
Heat-shrink tube (12) and ground wire (13) below cable protection pipe (8) outside, wherein,
Socket electrode (1) includes integrally formed high pressure contact site (14) and core contact site (15), and high pressure contact site (14) is
Cylinder.
2. cable termination according to claim 1, it is characterised in that core contact site (15) is put down with high pressure contact site (14)
Slip over and cross；And/or
High pressure contact site (14) and core contact site (15) are coaxial；And/or
Multiple the second screwed holes (141) for being connected with transformer are offered on high pressure contact site (14) top.
3. cable termination according to claim 1 or 2, it is characterised in that the upper surface of high pressure contact site (14) is a diameter of
90~110mm.
4. cable termination according to claim 1 or 2, it is characterised in that be installed on the stripping inside the cable termination
The contact area of cable core (16) and socket electrode (1) is 800mm2~1000mm2。
5. cable termination according to claim 1 or 2, it is characterised in that core contact site (15) is one with counterbore
Cylinder, wherein, the diameter of counterbore is slightly less than the diameter on stress cone (6) top；And/or
The external diameter of core contact site (15) is slightly less than the external diameter of high pressure contact site (14), and more than the diameter on stress cone (6) top.
6. cable termination according to claim 1 or 2, it is characterised in that a diameter of the 60 of core contact site (15) counterbore
~90mmm；And/or
Core contact site (15) external diameter is 90~110mm；And/or
Multiple projections are provided with the outer wall outer surface of core contact site (15).
7. cable termination according to claim 1 or 2, it is characterised in that the wall thickness of the dynamic contactor (3) is 19~
20mm。
8. cable termination according to claim 1 or 2, it is characterised in that on the outer wall of the dynamic contactor (3), edge
Its radial direction offers the screw for setting jackscrew (17).
9. cable termination according to claim 1 or 2, it is characterised in that the external diameter of the spring touch finger (4) be 65mm~
85mm；Its internal diameter is 50mm~70mm.
10. cable termination according to claim 1 or 2, it is characterised in that on the outer wall of the dynamic contactor (3), edge
Its circumference opens up two grooves for being used to set spring touch finger (4), and the depth of the groove is 5~15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621308567.6U CN206422500U (en) | 2016-12-01 | 2016-12-01 | A kind of 35kV high currents inner-cone pluggable cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621308567.6U CN206422500U (en) | 2016-12-01 | 2016-12-01 | A kind of 35kV high currents inner-cone pluggable cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422500U true CN206422500U (en) | 2017-08-18 |
Family
ID=59577987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621308567.6U Active CN206422500U (en) | 2016-12-01 | 2016-12-01 | A kind of 35kV high currents inner-cone pluggable cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206422500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832586A (en) * | 2018-06-29 | 2018-11-16 | 苏州优康通信设备有限公司 | A kind of anti-interference cable terminal box with anti-slip function |
| CN108847635A (en) * | 2018-06-29 | 2018-11-20 | 苏州优康通信设备有限公司 | A kind of communications cable terminal box |
-
2016
- 2016-12-01 CN CN201621308567.6U patent/CN206422500U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832586A (en) * | 2018-06-29 | 2018-11-16 | 苏州优康通信设备有限公司 | A kind of anti-interference cable terminal box with anti-slip function |
| CN108847635A (en) * | 2018-06-29 | 2018-11-20 | 苏州优康通信设备有限公司 | A kind of communications cable terminal box |
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