CN105305124B - A kind of electric wire switching device monomer and the integral type electric wire switching device being made of it - Google Patents
A kind of electric wire switching device monomer and the integral type electric wire switching device being made of it Download PDFInfo
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- CN105305124B CN105305124B CN201510726876.9A CN201510726876A CN105305124B CN 105305124 B CN105305124 B CN 105305124B CN 201510726876 A CN201510726876 A CN 201510726876A CN 105305124 B CN105305124 B CN 105305124B
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Abstract
A kind of electric wire switching device monomer and the integral type electric wire switching device being made of it, the electric wire switching device monomer includes adapter and lock nut, and one end of adapter is provided with along its axially extending clamp hole, and the other end of adapter is provided with inserting terminal；Lock nut is threaded on adapter to lock the electric wire of adapted in clamp hole, and inserting terminal waits for the wiring hole of wiring for grafting.The integral type electric wire switching device includes at least two electric wire switching device monomers and insulation shell；Several monomer storage tanks are provided on insulation shell, electric wire switching device monomer is mounted in monomer storage tank；The inserting terminal and collet chuck of electric wire switching device monomer stretch out outside insulation shell.Using collet chuck crimping lead wire, the unmatched problem of interface is not present, damage wires or stranded conductor will not be caused to scatter.Wiring hole is connected by the way of grafting, line is efficient, and conducting wire performance is good.
Description
Technical field
The invention belongs to be electrically connected technical field, and in particular to one kind is for connecting the line to electrical circuitry equipment or electromechanics
The electric wire switching device monomer of the wiring hole of product and the integral type electric wire switching device being made of it.
Background technology
The mode of wiring hole cooperation housing pin is usually taken when connecting power line in existing electrical circuitry equipment or electronic product
Establish the electrical connection between conducting wire and internal circuit.As shown in Figure 7 and Figure 8, the connecting line construction one of electrical circuitry equipment or electronic product
As include 30 ＇ of 10 ＇ of shell wiring hole, 20 ＇ of housing pin and connecting terminal, wherein：30 ＇ of connecting terminal is for connecting internal circuit
And External cable, 20 ＇ of housing pin are used to conducting wire being pressed to 30 ＇ of connecting terminal, 10 ＇ of shell wiring hole is used for across and holds
Receive conducting wire；It is provided with 301 ＇ of threaded hole for coordinating 20 ＇ of housing pin on 30 ＇ of the terminals and is used for grafting cable
302 ＇ of terminal connections hole, the position face of 10 ＇ of position and shell wiring hole of 302 ＇ of terminal connections hole.
There are following points for above-mentioned connecting line construction：
1, interface should not match.Since the wire gauge for needing to connect is different, the diameter of wire rod varies, and various electricity
Power is equipped or the connection structure of electronic product is intended to standardize, that is, certain a kind of product usually only provides a kind of cable connection
Interface often will appear thick cable connection in practice it is difficult to adapt to the line demand of different size cable in the market and in application
Thin wiring hole the case where either Thin cable connects thick wiring hole, --- either wiring efficiency or quality of connection all can be by shadow
It rings；Furthermore the diameter of wire rod due to needing to connect is different, and the area or quality of connection of the electric connection established are also therefore
And showing larger difference --- thin wire electrical-contact area is small, and it is big that heavy gauge wire is electrically connected area.
2, when it is rope-lay strand to need the cable that connects, due to housing screw effect and/or assembly when twisting, hinge
The stranded conductor being connected together is very easy to scatter, and then the electrical connection between cable and connecting terminal is caused to be failed.
3, hinder line.Housing pin directly compresses conducting wire, it is possible to which meeting damage wires cause Joint failure.
4, copper aluminium contact position is easy to happen couple corrosion.The connecting terminal of existing electrical circuitry equipment and electronic product generally uses
Metal copper material.And the considerations of in terms of cost or weight, commercially available cable generally use that density is smaller, electric conductivity is not also poor
Aluminium material.When copper aluminium is directly connected to, since the current potential of two kinds of metals is different, it is likely that can be because electrification occurs between copper aluminium
It learns corrosion and the conductive power of junction is caused to decline.This point is even more serious in wet environment, often has at copper-aluminium transition bright
Aobvious visible powdered alumina occurs.
Above-mentioned various problems are single, partly or entirely integrate, and the quality of connection of joint can be caused undesirable, apply
In once repeatedly there is wiring point fever even burning apparatus or the case where conducting wire.
To solve the above problems, the connecting line construction of power equipment or electronic product can be technically improved, however,
The various aspects such as the external structure to power equipment or electronic product, internal connection are improved while can be related to connecting line construction
Variation, cost is higher, and the period is longer, does not adapt to existing application demand, can not solve the tool to have put into production use
Have connecting line construction as shown in Figure 7 and Figure 8 or with similar connecting line construction (such as on connecting terminal only setting there are one threaded hole or
More threaded holes) power equipment or electronic product practical difficulty.
Invention content
The task of the present invention is a kind of electric wire switching device monomer is provided, mismatched with solving interface in the prior art, copper
Aluminium junction may occur to be easy to damage electric wire when couple corrosion and crimping direct using housing pin or cause stranded conductor
Scattered problem, used technical solution are：
A kind of electric wire switching device monomer, it is characterised in that：The electric wire switching device monomer includes adapter and locking screw
One end of cap, the adapter is equipped with along its axial clamp hole, and the other end of the adapter is inserting terminal, the locking
Nut is threaded in the electric wire locked on adapter in clamp hole, and the inserting terminal waits for the wiring of wiring for grafting
Hole.
Further, the end set in clamp hole is useful for the collet chuck of fastening electric wire, and the collet chuck includes at least two cards
Pawl；It is provided on the lock nut for the threaded hole for the adapter that is spirally connected and for the wire jack across conducting wire, described turn
The external screw thread for locking nut upper screwed hole is provided on connector, it is characterised in that：On the lock nut and collet chuck
It is also respectively provided with the corresponding conical surface, when collet chuck screws in the threaded hole on lock nut, working in coordination between the conical surface
The claw of collet chuck can be made to clamp the conducting wire being inserted into clamp hole；The other end of the adapter is provided with inserting terminal, described
Inserting terminal is used to be plugged into the wiring hole of power equipment or electronic product.
Further, the external screw thread on the adapter is set on the excircle of collet chuck claw, and claw extends to axis
Form the conical surface；Stepped hole is provided in the lock nut, the stepped hole is followed successively by from conducting wire insertion end to collet chuck insertion end
Wire jack, the conical surface, threaded hole and clear opening；When connecting wire, threaded hole and the mutual bolt of external screw thread, the conical surface and the conical surface are mutual
The outer circumference surface of cooperation, clear opening and adapter is worked in coordination, and conducting wire stretches into the clamp hole on adapter from wire jack.
Further, the external screw thread on the adapter is set on the outer circumference surface of adapter, and claw extends to axis
Form the conical surface；Stepped hole is provided in the lock nut, therefore the stepped hole is from conducting wire insertion end to collet chuck insertion end
Wire jack, the conical surface, clear opening and threaded hole；When connecting wire, external screw thread and locking screw on the adapter outer circumference surface
The mutual bolt of threaded hole of cap, claw stretch into clear opening, and the conical surface and the conical surface are worked in coordination, and conducting wire stretches into clamp from wire jack
Hole.
When connecting wire, conducting wire is first inserted into clamp hole, then lock nut is threadedly coupled to the outer spiral shell of adapter again
On line, with the gradual make-up of lock nut, the mutual cooperation between the conical surface squeezes multiple claws of collet chuck to medial axis,
And then conducting wire is firmly crimped in the clamp hole in collet chuck center.The crimping lead wire by the way of claw extruding, is not present interface
Unmatched problem damage wires or will not cause stranded conductor to scatter due to the direct crimping of housing pin.Connect wiring hole
When, it is only necessary to inserting terminal is inserted into wiring hole and with housing pin connecting screw coordination structure, you can complete switching device and arrive
Power equipment or electronic product line, because the specification of inserting terminal is consistent with wiring hole, line is efficient, and conducting wire performance is good, no
There are the unmatched problem of interface and hinders line or cause the scattered problem of stranded conductor.Furthermore electric wire proposed by the present invention
Switching device monomer, due to using aperture and the wiring hole of power equipment or electronic product consistent inserting terminal and wiring hole
Between connection replace electric wire and wiring hole to be connected between be directly connected to, the goodness of fit between wiring hole and inserting terminal
Higher, gap is smaller, and the moisture, oxygen or impurity in air are not easily accessed the interconnecting piece of inserting terminal and copper connecting terminal
Position, inserting terminal play connecting portion certain shielding action so that copper aluminium junction is anti-because lacking generation electrochemistry
Without easy ting produce couple corrosion, solving will directly be wired to a certain extent the necessary condition answered in the prior art
Gap is larger when copper connecting terminal, is easy to lead to the problem of security risk because of couple corrosion.
The further improvement project of the present invention includes：
The material of electric wire switching device monomer be national standard Al-Mg-Si-type aluminum alloy, preferably national standard 6060,6061,
6063,6063A, 6101, No. 6082 aluminium alloy of 6101A, 6101B, 6106,6463,6463A or, the use of the material can drop
The couple corrosion generated when low or decrease copper-aluminium transition, prolongs the service life, ensures quality of connection.
Locking screw pit, the locking screw pit and clamp hole perforation are additionally provided on adapter；On lock nut
It is next, then the fixation that locking screw pit realizes conducting wire is screwed in screw." dual fail-safe " is constituted with lock nut, strengthens mechanical connection
With the performance of electrical connection.
It is additionally provided with pincers on adapter and holds portion, the pincers portion of holding is for facilitating being spirally connected between locking nut and collet chuck.Spiral shell
When connecing lock nut and adapter, pliers is clamped in pincers and holds in portion and locking nut respectively, facilitates installation, improves wiring efficiency.
Further, the collet chuck is three-jaw collet chuck or four paws collet chuck；The one end in clamp hole is offered on the adapter
Several slot segmentations are provided with, the end of the adapter is divided into four claws or three cards by several described slot segmentations
Pawl；The clamp hole is located at the centre of multiple claws.Collet chuck locks the crimping that nut realizes conducting wire, is completely embedded, and saves
Material.
Further, screw coordination structure is provided on inserting terminal, the screw coordination structure is for coordinating housing pin
Realize being connected and fixed between inserting terminal and wiring hole.Specifically, screw coordination structure is preferably V-groove, square type slot, screw thread
Any of or a combination of hole.When using V-groove as coordination structure, with the screw-in of screw, extruding that V-groove is subject to
Power gradually increases, and the crimp of groove body to wiring hole inner wall is also increasing, and inserting terminal is compressed eventually by extruding force；When
When using square type slot as coordination structure, screw screws in groove body, and groove body compresses inserting terminal to wiring bore deformation；When making
When using threaded hole as coordination structure, inserting terminal is fixed by screw fastening clamp force, establishes electrical connection, connection is reliable, electrical property
It is good.Alternatively, when using V-groove or rectangular channel as screw coordination structure, hole, housing pin can also be threaded in groove body
The threaded hole for screwing in slot bottom again after V-groove or rectangular channel strengthens the electrical property and mechanical performance of connection.Further, it is
The grafting between inserting terminal and wiring hole, the intercalation part of the inserting terminal is facilitated to be additionally provided with the first chamfering structure；For side
Just on the seamed edge of the cooperation between housing pin and V-groove or rectangular channel, V-groove or rectangular channel opening second is also equipped with to fall
Corner structure；The setting of chamfering structure can improve wiring efficiency.
Further, it is additionally provided with anti-skid structure in the clamp hole among collet chuck, which can prevent clamping connection from existing
Electric wire in clamp hole occurs to loosen or be extracted clamp hole when by external force.Specifically, the anti-skid structure is preferably spiral shell
Line face, rough face, waveform curved surface or convex-concave portion.When using rough face as anti-skid structure, the inner surface in clamp hole is processed
For rough face, with certain friction coefficient, as long as can play prevents electric wire to be extracted clamp hole or loosen
Realize technical scheme of the present invention.When using convex-concave portion as anti-skid structure, it can be arranged on the inner surface in clamp hole several
Form complementary protrusion or recess portion in a orientation, when crimped electric wire, electric wire in clamp hole can be to because of the extruding by protrusion
It corresponds to stretching, extension in the recess portion in orientation, and then the deformation that is distorted, and is clamped in clamp hole.Conducting wire after the completion of crimping,
S-shaped or waveform are showed because being distorted, extends contact length, increases contact area and friction coefficient, are improved
Clamping connection effect.When using waveform curved surface as anti-skid structure, the inner surface in clamp hole is waveform curved surface, in this waveform song
Under the action of the wave crest or trough in face, the conducting wire that is crimped can also be distorted deformation, can equally play extend contact length,
Increase the purpose of contact area and friction coefficient.
Further, it is additionally provided with contact condition sensor on aforementioned electric wire switching device monomer and is passed with contact condition
The activation signal transmission unit that sensor is electrically connected, work temperature of the contact condition sensor for detecting electric wire switching device in real time
It spends and gives the data transmission detected to activation signal transmission unit；Activation signal transmission unit is for receiving data and will receive
To data be wirelessly connected or wired connection by way of send upper position detecting system to, then by upper position detecting system according to electricity
The operating temperature of line switching device assesses its connection status between electric wire and wiring hole and takes corresponding safety
Measure.Wherein contact condition sensor is heat sensitive component, and preferably contact condition sensor is the thermistor of contact, temperature-sensitive
Switch or contactless infrared light temperature sensor, ultraviolet light temperature sensor.By to temperature it is real-time monitoring, it can be achieved that
The real-time monitoring of contact condition.
Another aspect of the present invention also resides in and discloses a kind of integral type electric wire switching device, specially：
A kind of integral type electric wire switching device, it is characterised in that：Including at least two as any of the above-described technical solution is remembered
The electric wire switching device monomer and insulation shell of load；Several storage tanks, at least two electric wire are provided on insulation shell
Switching device monomer is mounted in the storage tank；The corresponding site of storage tank offers inserting terminal open-work and collet chuck open-work,
It is exhausted that the inserting terminal and collet chuck of the electric wire switching device monomer monomer pass through the inserting terminal open-work and collet chuck open-work to stretch out
Outside edge shell.Further, at least two electric wires switching device monomer monomer is by embedding modeling technique and insulation shell one
Body formed.Integral type electric wire switching device monomer, facilitates the management and installation of accessory, compact-sized, line is efficient；Externally
Insulation, security performance are high.
Beneficial effects of the present invention are：1, it is replaced in electric wire and wiring hole using the grafting between inserting terminal and wiring hole
Screw crimping between connecting terminal, due to the aperture phase of the wiring hole of the size and power equipment or electronic product of inserting terminal
Unanimously, the unmatched problem of interface is not present；Also, since housing pin discord electric wire is in direct contact, electric wire will not be damaged
Or stranded conductor is caused to scatter.2, by the way of collet chuck clamping connection electric wire, instead of directly being pressed with housing pin in the prior art
The mode connected wires, since the contact area between clamp hole and electric wire is big, electric wire uniform force during clamping connection compares screw
The case where direct crimping, the damage suffered by electric wire substantially reduce, and the possibility that stranded conductor scatters is greatly reduced.Also,
Even if the case where electric wire receives damage in clamp hole or stranded conductor dispersion has occurred, the conducting wire for scattering or being damaged
Still it can be clamped by the claw of collet chuck, not interfere with the electrical property of connecting portion.3, it is provided with the electric wire switching of anti-skid structure
Device monomer can prevent the electric wire in clamp hole by increasing friction coefficient or contact area between clamp hole and wire body
Occur to loosen or be extracted clamp, further increases the mechanical performance and electrical property of junction.4, it is provided with screw coordination structure
Electric wire switching device monomer, can improve and inserting terminal and connect by the cooperation between housing pin and screw coordination structure
The mechanical performance and electrical property of interconnecting piece between string holes.5, the wiring hole using aperture and power equipment or electronic product is consistent
Inserting terminal and wiring hole between connection replace electric wire and wiring hole to be connected between be directly connected to, wiring hole and insert
The goodness of fit between connecting terminal is higher, and gap is smaller, and the moisture, oxygen or impurity in air are not easily accessed inserting terminal and copper
The connecting portion of matter connecting terminal, inserting terminal play connecting portion certain shielding action so that copper aluminium junction because
To lack the necessary condition that electrochemical reaction occurs without easy ting produce couple corrosion, solves the prior art to a certain extent
In gap is larger when will directly be wired to copper connecting terminal, be easy to lead to the problem of security risk because of couple corrosion.
6, integral type electric wire switching device is integrated at least two electric wire switching devices due to using in insulation shell and insulation shell
Monomer monomer facilitates the management and installation of accessory, and compact-sized, line is efficient；External Insulation, security performance are high.
With reference to the accompanying drawings of the specification and technical scheme of the present invention is described in detail in specific embodiment.
Description of the drawings
Fig. 1：Electric wire switching device monomer overall structure diagram in embodiment 1；
Fig. 2：1 explosive view of embodiment；
Fig. 3：Lock nut sectional view in embodiment 1；
Fig. 4：The sectional view of inserting terminal；
Fig. 5：Two sectional view of embodiment；
Fig. 6：Electric wire switching device monomer with temperature-detecting device；
Fig. 7：Ammeter terminal box schematic diagram；
Fig. 8：Fig. 7 middle connecting terminal sectional views.
Indicate explanation：
Adapter；Inserting terminal；111/1011-V type grooves；Bail portion；114- second falls
Corner structure；The first chamfering structures of 113-；Clamp hole；Collet chuck；131- cross slot segmentations；132/1032-
Claw；External screw thread；The conical surface；Flange；Locking screw pit；15- pincers hold portion；
Lock nut；Hexagonal (hexagon)nut part；Cylindrical portion；23- stepped holes；231/
2031- wire jacks；The conical surface；233- threaded holes；234- clear openings；2033- clear openings；2034- threaded holes；
3：Lock screw；4：Contact condition sensor；5：Contact condition signal transmission unit.
Specific implementation mode
Preferred embodiment one：Electric wire switching device monomer for ammeter wiring hole
Fig. 1 is the structural schematic diagram of the preferred embodiment of the present invention one, and interpreting blueprints 1 is it is found that electric wire disclosed in embodiment 1 is transferred
Device monomer includes adapter 1, locking nut 2 and lock-screw 3.Locking nut 2 is screwed onto on the terminals of adapter 1, lock
Tight screw 3 screws in the threaded hole on adapter 1, and conductor grip is connected in the clamp hole of adapter 1.
Fig. 2 is the explosive view of embodiment one, and interpreting blueprints 2 is provided with inserted terminal it is found that adapter 1 is whole cylindrical
Son 11, clamp hole 12, four paws collet chuck 13, locking screw pit 14 and pincers hold portion 15.As seen from the figure, the radial direction of inserting terminal and collet chuck
Size is less than the circle diameter of adapter 1, and adapter 1 forms ladder at collet chuck and inserting terminal.Wherein：Inserting terminal is used for
The wiring hole of grafting power equipment or electronic product, clamp hole 12 are locked for accommodating electric wire to be connected, collet chuck 13 for coordinating
The conducting wire in clamp hole 12 is inserted into the tight fastening of nut 2；Locking screw pit 14 is used to coordinate the conducting wire in screw pressing clip string holes 12；
Pincers hold portion 15 for facilitating being spirally connected between adapter 1 and locking nut 2.The inserting terminal 11 and clamp hole 12 are respectively set
In the both ends of adapter 1, the diameter and length of inserting terminal are consistent with the wiring pore size of ammeter, and the depth in clamp hole 12 is more than
14 present position of locking screw pit is simultaneously penetrated through with threaded hole 14 is locked into.The end in clamp hole 12 is arranged in four paws collet chuck 13, packet
Include cross slot segmentation 131, by cross slot segmentation 131 is split to form four claws 132 being centrosymmetric, be arranged four
For locking the external screw thread 133 of nut 2, the conical surface 134 being set near clawed end portions on the outer circumference surface of a claw 132
And flange 135；Clamp hole 12 is located at the center of four claws 132, and the axis in clamp hole is overlapped with the axis of adapter 1.Grafting
Terminal 11 includes V-groove 111 and the bail portion 112 for being set to 11 end of inserting terminal.V-groove 111 is used to coordinate the pressure of ammeter
Tight screw realizes that the fixation between inserting terminal and ammeter wiring hole, bail portion 112 are mutual between housing pin for passing through
Mutually stop, the inserting terminal in wiring hole is prevented to be extracted or loosen.
Interpret blueprints 2 and Fig. 3, and locking nut 2 is including hexagonal (hexagon)nut part 21, cylindrical portion 22 and is set to hexagonal (hexagon)nut portion
Divide and penetrates through locking nut 2, the central axes weight of axis and locking nut with the stepped hole 23 inside cylindrical portion, stepped hole
It closes；Stepped hole 23 includes wire jack 231, the conical surface 232, threaded hole 233 and clear opening 234.From the figure 3, it may be seen that wire jack 231
The end face for being inserted into conducting wire, clear opening 234 in cylindrical portion 22 is opened in be opened on hexagonal (hexagon)nut part 21 and be used for
On the end face of insertion tube mounting board pawl, 233 connecting wire jack 231 of threaded hole and clear opening 234, threaded hole 233 and wire jack
The conical surface 232 is provided between 231；From clear opening, threaded hole, the conical surface to wire jack, the diameter of stepped hole 23 is gradually reduced.
Clamping when positive hexagonal (hexagon)nut part 21 is used to be spirally connected, can facilitate being spirally connected between locking nut 2 and adapter 1
And make-up.Wire jack 231 is for being inserted into and accommodating conducting wire；The conical surface 232 is used to coordinate the conical surface 134 on collet chuck, forms this reality
Apply the taper fit portion in example；Threaded hole 233 is used to coordinate the external screw thread 133 on collet chuck 13；Clear opening 234 is transferred for coordinating
First 1 outer circumference surface.When collet chuck 13 gradually screws in the threaded hole 233 of locking nut 2 across clear opening, with screw-in depth
It is continuously increased, the conical surface 232 starts to contact the conical surface 134 and is applied to the certain extruding force of the conical surface 134；In the effect of this extruding force
Under, four claws 132 of collet chuck 13 are gradually drawn close to the axis in clamp hole, and the flange 135 of collet chuck stretches into the conducting wire of locking nut
Jack 231, has finally compressed conducting wire.After compressing conducting wire, clear opening 234 is connected on the outer circumference surface of adapter 1, threaded hole
233 and claw outer circumference surface on 133 threaded of external screw thread, the conical surface 232 compress collet chuck on the conical surface 134, wire jack 231
It is clamped on the flange 135 of collet chuck.
Fig. 4 is the schematic cross-section of inserting terminal, and 1 and Fig. 4 of interpreting blueprints is it is found that the inserting terminal in embodiment one is cylinder
Structure is provided with V-groove 111 on cylinder, and the end set of V-groove has bail portion 112, V-groove to constitute the spiral shell of the present embodiment
Silk coordination structure.When grafting wiring hole, inserting terminal is inserted into wiring hole first, and makes screw coordination structure (this example is V-type
Slot) screw-in direction generally to positive housing pin, then assembles housing pin.With the gradually screw-in of housing pin, to V
The extruding force that type groove applies is increasing；Herein under the action of ever-increasing extruding force, V-groove gradually deforms and compresses
The connecting terminal of wiring hole and ammeter is finally set up reliably electrically and mechanically.
In addition, seeing Fig. 1 and Fig. 2, the second chamfering structure is additionally provided on the crest line of 111 opening of V-groove in the present embodiment
114, the assembly between housing pin and V-groove to facilitate power equipment or electronic product.Furthermore the plug of inserting terminal 11
End is also equipped with the first chamfering structure 113, can facilitate the grafting between inserting terminal and wiring hole；First chamfering structure 113
With the setting of the second chamfering structure 114, wiring efficiency can be further increased.
Furthermore coordination structure of the V-groove 111 as housing pin is used in the present embodiment, one as the present embodiment
Deformation, screw coordination structure are also designed to the rectangular channel being opened on inserting terminal 11 or threaded hole.The coordination of rectangular channel
Mechanism is similar with V-groove, and details are not described herein.When threaded hole is as screw coordination structure, itself and housing pin are mainly utilized
Between the power that is spirally connected realize the fixation between inserting terminal and wiring hole.It in further embodiments, can also be in V-groove or square
The slot bottom of shape slot is threaded hole, after the housing pin of power equipment or electronic product touches slot bottom, then screws in slot bottom
Threaded hole is to reinforce the mechanical performance and electrical property of connection.
As another improvement of the present embodiment, it is additionally provided with anti-skid structure in the clamp hole 12 on collet chuck 13, this is anti-skidding
Structure can prevent electric wire of the clamping connection in clamp hole from occurring to loosen or be extracted clamp hole 12 when by external force.Preferably,
The anti-skid structure is flank, rough face, waveform curved surface or convex-concave portion.When using rough face as anti-skid structure, by clamp
The inner surface in hole is processed as rough face, with certain friction coefficient, as long as the size of friction coefficient, which can play, prevents electricity
Line, which is extracted clamp hole or occurs to loosen, can be realized technical scheme of the present invention.It, can when using convex-concave portion as anti-skid structure
Complementary protrusion or recess portion are formed in several orientation to be arranged on the inner surface in clamp hole, when crimped electric wire, in clamp hole
Electric wire be stretched because being squeezed in the recess portion that can be corresponded to it in orientation by protrusion, and then the deformation that is distorted is clamped
In clamp hole.Conducting wire after the completion of crimping, S-shaped or waveform are showed because being distorted, and extend contact length, are increased
Contact area and friction coefficient, improve clamping connection effect.When using waveform curved surface as anti-skid structure, the interior table in clamp hole
Face is waveform curved surface, and under the action of the wave crest of this waveform curved surface or trough, the conducting wire that is crimped can also be distorted change
Shape can equally play the purpose for extending contact length, increasing contact area and friction coefficient.
Furthermore material of No. 6063 aluminium alloys of national standard as electric wire switching device monomer, the material are used in the present embodiment
Application, can weaken or inhibit to a certain extent the electricity between inserting terminal and power equipment or electronic product connecting terminal
Change corrosion, extend service life of equipment, improves equipment safety performance.Also, since the present embodiment uses aperture and power equipment
Or the connection between the consistent inserting terminal and wiring hole of wiring hole of electronic product replaces electric wire and wiring hole to be connected
Between be directly connected to, the goodness of fit between wiring hole and inserting terminal is higher, and gap is smaller, moisture, oxygen in air or
Impurity is not easily accessed the connecting portion of inserting terminal and copper connecting terminal, and inserting terminal plays connecting portion certain
Shielding action so that copper aluminium junction because lack occur electrochemical reaction necessary condition without easy ting produce couple corrosion,
Also it will solve when will directly be wired to copper connecting terminal in the prior art that gap is larger to a certain extent, is easy because of electricity
Change corrosion and leads to the problem of security risk.Furthermore due to national standard 6060,6061,6063,6063A, 6101,6101A,
No. 6063 aluminium alloys of the Al-Mg-Si-type aluminum alloys such as No. 6082 aluminium alloy of 6101B, 6106,6463,6463A or and national standard have phase
As match and electric property, be also used as the material of electric wire switching device disclosed in various embodiments of the invention, reach
Eliminate or inhibit the purpose of copper aluminium contact position electrochemical corrosion.
Preferred embodiment two：Electric wire switching device monomer for ammeter wiring hole
See Fig. 3 and Fig. 5, preferred embodiment two is identical with the basic structure of embodiment one and connection relation, difference it
Place is only that：Threaded hole 2034 is offered for being inserted on the end face of collet chuck on locking nut 20, which is straight in embodiment 1
Through-hole 234；Threaded hole 233 in embodiment 1 is clear opening 2033 in example 2；For mutual with locking nut on collet chuck
The external screw thread of cooperation is set on the outer circumference surface of adapter.
Fig. 5 shows the assembly relation between adapter 10 and locking nut 20 in embodiment 2, as shown in Figure 5, in this example
Adapter 10 on be provided with inserting terminal 101, clamp hole 102, collet chuck 103 and locking screw pit 104.Collet chuck 103 includes
Claw 1032, the conical surface 1034 and flange 1035, the external screw thread 1033 for working in coordination with the threaded hole on locking nut are arranged
On the outer circumference surface of adapter 10.V-groove 1011 and bail portion 1012 are provided on inserting terminal 101.Locking nut 20 wraps
Nut portion 201 and cylindrical portion 202 are included, the inside of locking nut 20 offers stepped hole 203, and the stepped hole 203 is along circle
The axis direction of cylinder penetrates through locking nut.Stepped hole 203 includes wire jack 2031, the conical surface 2032, clear opening 2033 and spiral shell
Pit 2034.
After compressing conducting wire, threaded hole 2034 is connected on the external screw thread 1033 of adapter outer circumference surface, and collet chuck 103 is accommodated in
In clear opening 2033, the conical surface 2032 of locking nut compresses the conical surface 1034 on collet chuck, and wire jack 2031 is connected to collet chuck
On flange 1035.
The connection relation of each component or structure, matching relationship and function are in the same manner as in Example 1 in embodiment 2, herein not
It repeats again.Screw coordination structure, anti-skid structure, material in embodiment 1 and its respective modification and improvement scheme, it is equally applicable
In embodiment 2, details are not described herein.
Under the innovative idea of the present invention, following deformation, displacement can also be done or improved：
Above-described embodiment use four paws collet chuck, in some other embodiment can also use three-jaw collet chuck or including
The collet chuck of other quantity claw.
Inserting terminal is preferably cylindrical structure, in other examples, can also use circular tube structure.
Lock nut is preferably the structure that hexagonal (hexagon)nut in embodiment 1 adds cylinder, in some other embodiment,
Rectangular, cylindrical or other shapes lock nut can be directly used, as long as nut has the spiral shell introduced in above-described embodiment
Technical scheme of the present invention can be achieved in pit and the conical surface and corresponding matching relationship, obtains expected technique effect.
In addition, in the various embodiments described above and its deformation or improved embodiment, it is all made of between inserting terminal and wiring hole
Tight fit and using aluminum alloy material control inserting terminal and ammeter connecting terminal between couple corrosion, other
In some embodiments, conductive paste or electric power fat are coated at the gap of wiring hole that can also be after the completion of wiring or on surface, into
One step is sealed shielding to copper aluminium connecting portion, improves security performance.Alternatively, can also be in inserting terminal and wiring hole
Junction coating conductive paste between copper connecting terminal or electric power fat, fill up a large amount of gaps at contact surface with fat, reduce
The immersion of oxygen, moisture and impurity in air makes the tie point of conductor keep good conducting wire performance in long-term operation,
Contact resistance will not increase, and ensure the long-term safety operation of circuit.Furthermore according to《Power equipment installing engineering bus device is applied
Work and acceptance criteria》Relevant regulations, in interior of the outdoor or air humidity close to 100%, between copper conductor and aluminum conductor
Connection should use copper-aluminum transition terminal, copper to aluminum adapter bar or copper-aluminum transition terminal.In order to further increase safety guarantee, may be used also
To take the structure control couple corrosion similar with copper aluminium adapter general in industry, copper-aluminium transition wire clip or copper aluminium pinboard
Influence.Specifically, the material of the wiring bore portion for connecting electric wire is aluminum or aluminum alloy, is connect for grafting wiring hole to be copper
Material at the inserting terminal of line terminals is metallic copper, using plating, casting or friction welding (FW) between inserting terminal and wiring hole
Mode establish electrical connection.Alternatively, entire electric wire switching device monomer is aluminum alloy materials, copper is only provided at inserting terminal
Coating is welded with copper tip.
Furthermore in above-mentioned various embodiments, the screw coordination for coordinating with housing pin is both provided on inserting terminal
Screw coordination structure can not also be arranged in another embodiment in structure on inserting terminal, but utilize inserting terminal and
The extruding of frictional force and housing pin between wiring hole realize inserting terminal and power equipment or electronic product wiring hole it
Between be connected and fixed.
In further embodiments, as shown in fig. 6, in order to improve the security performance of device, the electric wire switching device list
The activation signal transmission unit 5 for being additionally provided with contact condition sensor 4 on body and being electrically connected with contact condition sensor 4,
The contact condition sensor 4 for the operating temperature of detection electric wire switching device in real time and is connect the data transmission detected
Touch signal transmission unit 5；The activation signal transmission unit 5 is for receiving data and the data received being passed through wireless connection
Or the mode of wired connection sends position detecting system to, then by upper position detecting system according to the operating temperature of electric wire switching device
Its connection status between electric wire and wiring hole is assessed and takes corresponding safety measure.Wherein contact condition senses
Device 4 is heat sensitive component, and preferably contact condition sensor is the thermistor of contact, thermoswitch or contactless infrared
Light temperature sensor, ultraviolet light temperature sensor.By the real-time monitoring to temperature, it can be achieved that the real-time monitoring of contact condition.
Technical scheme of the present invention is elaborated above in association with embodiment and Figure of description, it should explanation
That protection scope of the present invention includes but is not limited to above-described embodiment, in Figure of description involved figure also only this
The several concrete embodiment of invention intention, the technical personnel in the technical field can also make on this basis to be had outside other
The specific embodiment of sight or structure, any simple deformation or equivalent replacement for not departing from innovative idea of the present invention are covered by this
Invention, belongs to the scope of protection of the present invention.
Claims (18)
1. a kind of electric wire switching device monomer, it is characterised in that：Including adapter and lock nut, one end of adapter is equipped with edge
The other end in its axial clamp hole, adapter is inserting terminal；Lock nut is threaded on adapter to lock clamp
The electric wire of adapted in hole, inserting terminal wait for the wiring hole of wiring for grafting；It is also set respectively on the lock nut and adapter
It is equipped with the corresponding conical surface, when collet chuck screws in the threaded hole on lock nut, working in coordination between the conical surface can make cylinder
The claw of folder clamps the electric wire being inserted into clamp hole；The conical surface on the adapter is extended to form along the direction for being parallel to axis
Flange, when connecting wire, the flange is connected in the wire jack of lock nut；The size of the inserting terminal and wait for wiring
Power equipment or electronic product wiring hole aperture it is consistent；Screw coordination structure is additionally provided on the inserting terminal,
The screw coordination structure is used to that housing pin to be coordinated to realize being connected and fixed between inserting terminal and wiring hole；The screw is matched
Bit architecture is V-groove, square type slot or threaded hole.
2. electric wire switching device monomer according to claim 1, it is characterised in that：It is provided with and is used on the lock nut
Be spirally connected the threaded hole of adapter, and the external screw thread for locking nut upper screwed hole is provided on the adapter.
3. electric wire switching device monomer according to claim 2, it is characterised in that：The end set in the clamp hole is useful
In the collet chuck of clamping connection electric wire, the collet chuck includes at least two claws.
4. electric wire switching device monomer according to claim 2, it is characterised in that：The external screw thread is set to collet chuck claw
Excircle on, claw extends to form the conical surface to axis；The conical surface and threaded hole are provided in the lock nut；Connecting wire
When, threaded hole and the mutual bolt of external screw thread, the conical surface and the conical surface are worked in coordination.
5. electric wire switching device monomer according to claim 4, it is characterised in that：It is additionally provided with and leads in the lock nut
Line jack and clear opening；When connecting wire, conducting wire stretches into clamp hole from wire jack；Clear opening is connected to the excircle of adapter
On face；The wire jack, the conical surface, threaded hole and clear opening form stepped hole.
6. electric wire switching device monomer according to claim 4, it is characterised in that：It is additionally provided with and leads in the lock nut
Line jack and clear opening；When connecting wire, the claw stretches into clear opening, and conducting wire stretches into clamp hole from wire jack；It is described to lead
Line jack, the conical surface, clear opening and threaded hole form stepped hole.
7. electric wire switching device monomer according to claim 1, it is characterised in that：Locking is additionally provided on the adapter
Threaded hole, the locking screw pit and clamp hole perforation；It is next on lock nut, then locking screw pit reality is screwed in screw
The fixation of existing conducting wire.
8. electric wire switching device monomer according to claim 1, it is characterised in that：Pincers are additionally provided on the adapter to hold
Portion, the pincers portion of holding are used to facilitate being spirally connected for lock nut and adapter.
9. electric wire switching device monomer according to claim 1, it is characterised in that：The collet chuck is four paws collet chuck；It is described
One end that adapter is provided with clamp hole offers cross slot segmentation, and cross slot segmentation divides the end of the adapter
For four claws；The clamp hole is located at the centre of four claws.
10. electric wire switching device monomer according to claim 1, it is characterised in that：The collet chuck is three-jaw collet chuck；It is described
One end that adapter offers clamp hole is divided into three claws；The clamp hole is located at the centre of three claws.
11. electric wire switching device monomer according to claim 1, it is characterised in that：The lock nut includes hexagonal spiral shell
Cap portion and cylindrical portion；The end face of the hexagonal (hexagon)nut part is collet chuck insertion end, and the end face of the cylindrical portion is
Conducting wire insertion end.
12. electric wire switching device monomer according to claim 1, it is characterised in that：The plug end of the inserting terminal is set
It is equipped with the first chamfering structure；It is provided with the second chamfering structure on the seamed edge of the V-groove opening.
13. the electric wire switching device monomer according to any one of claim 1-11 claims, it is characterised in that：It is described
Be additionally provided with anti-skid structure in clamp hole among collet chuck, the anti-skid structure can prevent electric wire of the clamping connection in clamp hole by
Clamp hole is loosened or is extracted to generation when external force.
14. the electric wire switching device monomer according to any one of claim 1-11 claims, it is characterised in that：It is described
The material of electric wire switching device monomer be national standard 6060,6061,6063,6063A, 6101,6101A, 6101B, 6106,6463,
Any one of 6463A, No. 6082 aluminium alloys.
15. the electric wire switching device monomer according to any one of claim 1-11 claims, it is characterised in that：It is described
Position of the electric wire switching device monomer for grafting wiring hole is copper material, and the position for crimped electric wire is aluminium material；Copper material
It is welded together by friction welding (FW) or casting between matter and aluminium material and constitutes copper-aluminium transition structure.
16. the electric wire switching device monomer according to any claim in claim 1-11, it is characterised in that：
It is additionally provided with contact condition sensor on the electric wire switching device monomer and is electrically connected with contact condition sensor
Activation signal transmission unit, the contact condition sensor in real time detect electric wire switching device operating temperature and will inspection
The data transmission measured gives activation signal transmission unit；The activation signal transmission unit is used to receive data and will receive
Data send upper position detecting system to by way of wireless connection or wired connection.
17. a kind of integral type electric wire switching device, it is characterised in that：Including at least two any one of such as claim 1-11 power
Profit requires the electric wire switching device monomer and insulation shell；Several monomer storage tanks are provided on the insulation shell,
The described at least two electric wire switching device monomers as described in any one of claim 1-11 claims is mounted on the list
In body storage tank；The corresponding site of the monomer storage tank offers inserting terminal open-work and collet chuck open-work, the electric wire switching
The inserting terminal and collet chuck of device monomer pass through the inserting terminal open-work and fastener head open-work to stretch out outside insulation shell.
18. integral type electric wire switching device according to claim 17, it is characterised in that：Described at least two such as rights are wanted
Seeking the electric wire switching device monomer described in any one of 1-11 claims is integrally formed by embedding modeling technique and insulation shell
's.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510726876.9A CN105305124B (en) | 2015-10-29 | 2015-10-29 | A kind of electric wire switching device monomer and the integral type electric wire switching device being made of it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726876.9A CN105305124B (en) | 2015-10-29 | 2015-10-29 | A kind of electric wire switching device monomer and the integral type electric wire switching device being made of it |
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| CN105305124B true CN105305124B (en) | 2018-07-13 |
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| CN111913013B (en) * | 2020-08-11 | 2023-10-20 | 广东电网有限责任公司广州供电局 | Measuring datum point fixing tool |
| CN114256683B (en) * | 2021-11-01 | 2024-06-04 | 国网浙江省电力有限公司电力科学研究院 | Wire switching device monomer |
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| CN105305124A (en) | 2016-02-03 |
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