CN208596794U - A kind of round wires conducting wire multiple-limb shape locking connector - Google Patents
A kind of round wires conducting wire multiple-limb shape locking connector Download PDFInfo
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- CN208596794U CN208596794U CN201820843067.5U CN201820843067U CN208596794U CN 208596794 U CN208596794 U CN 208596794U CN 201820843067 U CN201820843067 U CN 201820843067U CN 208596794 U CN208596794 U CN 208596794U
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Abstract
The utility model discloses a kind of round wires conducting wire multiple-limb shape locking connectors, including conductive connector, input locking nut and output locking nut, connector is provided with input threaded shank and Duo Gen output screw portion, the end in input threaded shank and every output screw portion is respectively arranged with input locking tube and output locking tube, input locking nut and output locking nut outer end inner hole are respectively arranged with input fastening cones section and output fastening cones section, input locking tube and output locking tube are provided with U-shaped opening, input locking nut and output locking nut are connected in input threaded shank and output screw portion, input fastening cones section and output fastening cones section are extruded in input locking tube and output locking tube respectively.The utility model can fast implement the connection of the round wire more than one point, reduce contact resistance, and realization connector is not in that gap loosens oxidation in cold cycling rear joint conductor contact surface, improve the connection reliability of connector.
Description
Technical field
The utility model belongs to electrical power wiring equipment technical field, and in particular to a kind of round wires conducting wire multiple-limb shape locking company
Connect device.
Background technique
In previous round wires conducting wire connection, connected usually using conducting wire bolt crimp connector, this connector construction
Simply, it is easily installed, it is of less demanding to operator quality.
Existing round wires conducting wire multiple-limb shape bolt crimp connector, including a conducting wire bolt crimp connector, multiple
Conducting wire hold-down bolt.It is machined with an input lead connecting hole on connector and lateral hold-down bolt hole, multiple output leads connect
Connect hole and lateral hold-down bolt hole.
As Figure 9-Figure 11, the connector of conducting wire bolt crimp connector and bolt are generally process by Stainless Steel,
Wire connection hole transverse direction thread mill drilling, hold-down bolt are mounted in lateral threaded holes, by round conductor conductor when conducting wire connects
Connector wire connection hole is penetrated, fastening bolt is pressed together bolt end, connector, wire connection hole inner wall.
Although the conducting wire connection of conducting wire bolt crimp connector is simple, it is easy to implement, due to connector material and conducting wire
Material is different, leads connector and all produces serious yield deformation after mounting, and the contact area of conducting wire and connector is small, and
And the difference of linear expansion of conductor jointer connector, impacted bolt and conducting wire is bigger, after the operation of long period,
By multiple cold cycling, continue to be plastically deformed at conducting wire bolt crimping, generates gap and loosen, air etc. enters and makes to connect
The oxidation of junctor electrolysis makes to lead the increase of connector contact resistance, fever failure.
Summary of the invention
The technical issues of the utility model solves is: a kind of round wires conducting wire multiple-limb shape locking connector is provided, to solve
Above-mentioned problems of the prior art.
The technical solution that the utility model is taken are as follows: a kind of round wires conducting wire multiple-limb shape locking connector, including conduction
Connector inputs locking nut and output locking nut, and input threaded shank and Duo Gen output screw portion are provided on connector, defeated
The end for entering threaded shank and every output screw portion is respectively arranged with input locking tube and output locking tube, input locking nut and
Output locking nut outer end inner hole is respectively arranged with input fastening cones section and output fastening cones section, inputs locking tube and defeated
Locking tube is provided with U-shaped opening out, and input locking nut and output locking nut are connected to input threaded shank and output
In threaded shank, input fastening cones section and output fastening cones section are extruded in input locking tube and output locking tube respectively.
Preferably, above-mentioned input threaded shank is connected to connector by threaded portion and is locked using welding or lock-screw,
Screw parts are inputted in connector one end or keep vertical, more output screw portions are connected on connector and are adopted by threaded portion
With welding or lock-screw locking.
Preferably, above-mentioned connection body section is tetragonal structure, is provided with installation through-hole.
Preferably, above-mentioned input locking tube and output locking tube end are provided with cone guide section.
Preferably, above-mentioned metallic interconnection materials are consistent with connected round wires material.
The utility model has the beneficial effects that compared with prior art, the effect of the utility model is as follows:
(1) the utility model is respectively provided with mutually isostructural fastening connection mechanism at the both ends of connector, can fast implement
The vertical connection of two round wires, convenient for change connecting line trend, without bending part wire inner core caused by bending conducting wire by
Wire connections local plastic deformation can be realized that conductor is nibbled by damage, the locking nut of use and the locking connection type of locking tube
Splice grafting touches, and increases contact surface product, contact resistance is reduced, while the fastening cones section being open is in elastic range, by certainly
Compensation, realization connector are not in that gap loosens oxidation in cold cycling rear joint conductor contact surface, improve the connection of connector
Reliability；
(2) it is crimped using cone guide section, crimping is more closer, and fitting is more preferable, and it is higher to be conductively connected reliability；
(3) metallic interconnection materials are identical as connected round wires material, can effectively avoid sending out between connector and connected round wires
Raw electrochemical reaction, effectively avoids connector and wire inner core from being oxidized, further decreases junction contact resistance.
Detailed description of the invention
Fig. 1 is the connector construction schematic diagram of opposite connection；
Fig. 2 is the connector construction schematic diagram for turning to connection；
Fig. 3 is connector attachment structure schematic diagram；
Fig. 4 is locking tube end structure illustration；
Fig. 5 is lock nut structure diagram；
Fig. 6 is lock nut structure diagram；
Fig. 7 is contact surface one end instruction structure schematic diagram；
Fig. 8 is connector one end size marking figure；
Fig. 9 is connector one end Axial Load Analysis schematic diagram；
Figure 10 is existing bolt crimp connector structural schematic diagram；
Figure 11 is the left view structural representation of Figure 10；
Figure 12 is the overlooking structure diagram of Figure 10.
Specific embodiment
With reference to the accompanying drawing and the utility model is described further in specific embodiment.
Embodiment 1: as shown in figs. 1-9, a kind of round wires conducting wire multiple-limb shape locking connector, including conductive connector
1, locking nut 2 and output locking nut 3 are inputted, input threaded shank 4 and Duo Gen output screw portion 5 are provided on connector 1, it is defeated
The end for entering threaded shank 4 and every output screw portion 5 is respectively arranged with input locking tube 6 and output locking tube 7, inputs locking screw
Mother 2 and output 3 outer end inner hole of locking nut are respectively arranged with input fastening cones section 8 and output fastening cones section 9, input lock
Tight pipe 6 and output locking tube 7 are provided with U-shaped opening 10, and input locking nut 2 and output locking nut 3 are connected to defeated
Enter in threaded shank 4 and output screw portion 5, input fastening cones section 8 and output fastening cones section 9 are extruded in input locking tube respectively
6 and output locking tube 7.
Preferably, above-mentioned input threaded shank 4 is connected to connector 1 by threaded portion and is locked using welding or lock-screw
Tightly, input threaded shank 4 is located at 1 one end of connector or keeps vertical, and more output screw portions 5 are connected to connector by threaded portion
Material cost and processing cost are reduced on 1 and using welding or lock-screw locking, structure manufacture easy to process, inputs spiral shell
Bar portion 4 and output screw portion 5 and the threaded connection place of connector 1 are provided with conductive paste layer, improve conductive effect.
Preferably, above-mentioned 1 section of connector is tetragonal structure, is provided with installation through-hole 12.
Preferably, above-mentioned input locking tube 6 and output 7 end of locking tube are provided with cone guide section 11.
Preferably, above-mentioned 1 material of connector is consistent with connected round wires material.
Connector, locking nut material should be matched with lead material, and guarantee effectively connection, and the cooperation of electrician's copper sleeve body makes
Nut should be manufactured by H80 brass, and electrician's copper sleeve is connected for copper conductor, and the nut that electrician's aluminium joint body is used cooperatively is answered
It is manufactured by high strength alumin ium alloy, electrician's aluminium joint is connected for aluminum conductor.
Locking type connector, disassembly must more renew conducting wire when once ressembling again, or be reloaded into after cutting the end of a thread, connect
Line length must be appropriate, cannot be too long or too short.
A kind of connection method of round wires conducting wire multiple-limb shape locking connector, this method are as follows: will input round wire end and
More output round wire ends reserve one section of conductive metal section inner core after peeling off, input in the conductive metal section of round wire end
Core length is less than input 6 bore depth of locking tube, and the conductive metal section length of inner core of output round wire end is less than output locking
Input locking nut 2 and multiple output locking nuts 3 are inserted in input round wire and Duo Gen output circle by 7 bore depth of pipe respectively
On conducting wire, the conductive metal section inner core of the conductive metal section inner core for inputting round wire end and output round wire end is inserted respectively
Enter to input in locking tube 6 and output locking tube 7, and input locking nut 2 is distinguished with output locking nut 3 using torque spanner
It screws and is connected in input threaded shank 4 and output screw portion 5 and until input fastening cones section 8 and output fastening cones section 9 are divided
Don't push presses off the input locking tube 6 of mouth and output 7 elastic tight of locking tube fits on conductive metal section inner core 9, completes one point
More round wires is vertical or connects relatively.
Setting torque size locking is carried out by torque spanner, locking is more reliable, and will not destroy the knot at contact occlusion
Structure, because screw-down torque is too small, the pressing force acted on conductor contact surface is inadequate, and it is big contact resistance easily occur, screw-down torque
It is excessive, assembly difficulty is not only caused, but also connector casing may be damaged and cause joint failure.
Above-mentioned input locking nut 2 or the screw-down torque for exporting locking nut 3 calculate:
If connector and input locking nut 2 or any thread contact face exported between locking nut 3 are A1, connector
It is A2, contact surface with input locking nut 2 or the conical contact surface construction for exporting the corresponding thread contact face end between locking nut 3
The calculation formula of available maximum static friction torque T1, T2 of A1, A2 is as follows；
In formula (1) and (2):
F---- is axial pre tightening force；
P---- is thread pitch；
μ1----be flank friction factor；
r1The half of ----be screw thread equivalent redius and the pitch diameter of thread；
β ----it is the 1/2 of form of thread angle；
μ2The friction factor of ----between connector and nut；
r2--- it is the friction equivalent redius of connector locking tube centrum and nut tap body contact zone domain；
α2----be the 1/2 of locking tube cone guide section cone angle；
The torque relationship of conducting wire locking type connector is
T=T1+T2 (3)
I.e. the torque of conducting wire locking type connector is with axial pre tightening force F relationship
Axial pre tightening force F:
In formula (5): d---- round wire diameter；σsThe yield strength of ----round wire；
It can must screw-down torque T according to formula (4) and formula (5):
Connector and input fastening cones section or the friction equivalent redius r for exporting fastening cones section contact area2:
In formula (7), D1----be connector diameter of thread, same to d1；
D2The tight lock tube internal diameter of ----be；
D3----be tight lock tube centrum top outer diameter；
D4The tight lock tube outer diameter of ----be.
Friction factor is chosen by table 1.
1 machined surface friction factor of table
| Mutual friction material | Friction factor |
| Brass is to brass machined surface | 0.12 |
| Bronze is to bronze machined surface | 0.07 |
| Steel to steel machined surface | 0.1 |
| Aluminium alloy is to aluminium alloy machined surface | 0.18 |
Above-mentioned cos β can be calculated with formula (8):
In formula (8):
P---- is thread pitch；
D---- is bolt thread outer diameter；
D1---- is diameter of thread.
The contact resistance of screw-down torque butt joint connection has a great impact.Screw-down torque is too small, acts on conductive contact
Pressing force on face is inadequate, easily occurs that contact resistance is big, and screw-down torque is excessive, not only causes assembly difficulty, but also can energy loss
Bad connector casing and cause joint failure.
Theoretically analyze, in order to guarantee that the contact resistance of connection of conducting wire is sufficiently small, locking type connector screwing force
Selection must reach the following conditions:
A. the tight lock tube processing of connector is it cannot be guaranteed that have good round precision, for the airtightness of contact surface, connector
The axial pre tightening force of the tight lock tube conical surface should be able to make the tight lock tube inner surface of connector generate local plastic deformation, to keep connector tight
Lock tube and conducting wire generate good engagement；
B. the axial pre tightening force of this body cone of flared fitting cannot be excessive, integrally generates no more than connector casing
Otherwise the pretightning force of plastic deformation can make the tight lock tube of connector generate localized cracks.
Therefore, the selection of locking type connector screwing force, with 2 times of calculating compression chords of wire cross-section area, connector
Internal surface of casing compression reaches material yield strength and is advisable.
It in the place of not torque spanner, or can not check moment values, the scribing line method of tightening can also be used and tighten, i.e., it first will with hand
Nut is screwed to bottom, draws a line between nut and fitting body, then pulls fitting body with a spanner, then pull spiral shell with another spanner
Mother, then tighten 1/4~1/3 circle, it is ensured that it does not twist and splits locking tube.
For the example of different conductor model:
National Specification round conductor sectional area (mm2) be respectively 2.5,4,6,10,16,25,35,50,70,95,
120,150 etc., with power distribution network common 2.5,4,6,10,16,25,35,50,70,95 etc. 10 kinds of sectional area round conductors from
Locking connector carries out example design, is computed, this ten specification round conductor self-locking connector key dimension such as tables 2, copper
Round conductor self-locking connector Tightening moment such as table 3, aluminium round conductor self-locking connector Tightening moment such as table 4.
2 round conductor self-locking connector key dimension of table
3 bronze medal round conductor self-locking connector Tightening moment of table
4 aluminium round conductor self-locking connector Tightening moment of table
Example above description is only a specific implementation of the present invention, the protection scope of the utility model not office
It is limited to this.Be familiar with the those skilled in the art within the technical scope disclosed by the utility model, can easily find variation or
Alternative, these should be covered within the scope of the utility model.For this purpose, the protection scope of the utility model should be with
Subject to the scope of protection of the claims.
Claims (4)
1. a kind of round wires conducting wire multiple-limb shape locking connector, it is characterised in that: including conductive connector (1), input locking
Nut (2) and output locking nut (3) are provided with input threaded shank (4) He Duogen output screw portion (5) on connector (1), defeated
The end for entering threaded shank (4) and every output screw portion (5) is respectively arranged with input locking tube (6) and output locking tube (7), defeated
Enter locking nut (2) and output locking nut (3) outer end inner hole is respectively arranged with input fastening cones section (8) and output locking
Cone segments (9), input locking tube (6) and output locking tube (7) is provided with U-shaped opening (10), input locking nut (2) and defeated
Locking nut (3) is connected in input threaded shank (4) and output screw portion (5) out, is inputted fastening cones section (8) and is exported
Fastening cones section (9) is extruded in input locking tube (6) and output locking tube (7) respectively；Threaded shank (4) are inputted to connect by threaded portion
It is connected to connector (1) and is locked using welding or lock-screw, input threaded shank (4) is located at connector (1) one end or keeps hanging down
Directly, more output screw portions (5) are connected on connector (1) by threaded portion and using welding or lock-screw lockings；Input
The threaded connection place of threaded shank (4) and output screw portion (5) and connector (1) is provided with conductive paste layer.
2. a kind of round wires conducting wire multiple-limb shape locking connector according to claim 1, it is characterised in that: connector (1)
Section is tetragonal structure, is provided with installation through-hole (12).
3. a kind of round wires conducting wire multiple-limb shape locking connector according to claim 1, it is characterised in that: input locking tube
(6) and output locking tube (7) end is provided with cone guide section (11).
4. a kind of round wires conducting wire multiple-limb shape locking connector according to claim 1, it is characterised in that: connector (1)
Material is consistent with connected round wires material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820843067.5U CN208596794U (en) | 2018-06-01 | 2018-06-01 | A kind of round wires conducting wire multiple-limb shape locking connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820843067.5U CN208596794U (en) | 2018-06-01 | 2018-06-01 | A kind of round wires conducting wire multiple-limb shape locking connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208596794U true CN208596794U (en) | 2019-03-12 |
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ID=65600897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820843067.5U Active CN208596794U (en) | 2018-06-01 | 2018-06-01 | A kind of round wires conducting wire multiple-limb shape locking connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208596794U (en) |
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2018
- 2018-06-01 CN CN201820843067.5U patent/CN208596794U/en active Active
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