CN110098499A - A kind of conductor terminal and preparation method thereof - Google Patents
A kind of conductor terminal and preparation method thereof Download PDFInfo
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- CN110098499A CN110098499A CN201910337940.2A CN201910337940A CN110098499A CN 110098499 A CN110098499 A CN 110098499A CN 201910337940 A CN201910337940 A CN 201910337940A CN 110098499 A CN110098499 A CN 110098499A
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- Prior art keywords
- connector
- contact
- conductor terminal
- fixing piece
- protective layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/32—End pieces with two or more terminations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/023—Soldered or welded connections between cables or wires and terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
- H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Abstract
The invention discloses a kind of conductor terminals and preparation method thereof, the conductor terminal includes fixing piece and connector, the fixing piece is for connecting power device, the surface of the connector is equipped with groove, it further include the contact that core is led for connecting wire, the contact is seamlessly connected the groove；Also, a some or all of object at least in the fixing piece, connector, contact is provided with corrosion protective layer on surface；The preparation method of the conductor terminal, the preparation method include Connection Step, forming step and corrosion-protective step.Due to being seamless connection between the groove and contact of connector of the invention, to completely cut off the intervention of air and water, achieve the effect that slow down electrochemical corrosion between contact and connector.Meanwhile corrosion protective layer set by the present invention, then facilitate the corrosion for further resisting external environment.
Description
Technical field
The present invention relates to electrical connection technical fields more particularly to a kind of conductor terminal and preparation method thereof.
Background technique
Currently, requirement light-weighted for cable has become the major subjects of automobile industry exploitation.Traditional automobile neck
The material of domain electrical connection, terminal and conductor is copper or copper alloy, but since the exploitation ownership and sole mass of copper are big
Limitation, on the one hand cause the market price of copper persistently to rise and increase the cost of cable products, on the other hand due to copper itself
Quality also limits greatly the light-weighted developing way of cable.
To realize that the lightweight people of cable have selected the opposite amount of storage such as aluminium, aluminium alloy greatly and relative mass is lighter
Conductive material is as cable conductors material.
When technical staff selects the above Novel cable conductor material production wire connecting ends period of the day from 11 p.m. to 1 a.m discovery, with copper and copper conjunction
As in the case where connecting terminal, the connection of copper aluminium material material there is a problem of serious gold.Due to the electrode potential gap between copper aluminium
It is larger, after copper aluminium is directly connected to, under the action of air and water, electrochemical reaction can be generated between copper aluminium, aluminium it is perishable and
Cause join domain resistance to increase, serious consequence, such as disabler, fire etc. are generated in electrical connection.Therefore, it is badly in need of
It is a kind of to be attached with the conducting wire of different conductor material, and it is able to satisfy good mechanical performance and electric property, use the longevity
Order long terminal.
Chinese invention patent CN102113177B discloses a kind of motor vehicle conductor connection element, be in flat part, it is embedding
Enter other metals as the accessory connecting with conducting wire.The electrochemical corrosion between different conductor material is reduced by accessory, together
When, flat part and part accessory are protected using the coat of metal.
But there is also following defects for the connecting element in foregoing invention patent:
The accessory is in the groove for being embedded in flat part by way of compacting or roll, and this method not can guarantee not only
Flat part and the general planar of accessory flush, and are also easy to make between accessory and flat part there are gap, both the company of increasing
The contact resistance between element and conducting wire is connect, and flat part and accessory can be caused to generate slow because entering water and air and impurity
Slow chemical reaction, over time, the resistance between accessory and flat part can be more and more big, and extent of corrosion significantly adds
Fastly, temperature rise significantly improves after energization, and finally causes severe accident of such as catching fire, and disagrees with the original intention of invention.
Be mentioned in the 10th section of foregoing invention patent specification: if accessory planes align flat part is set
On, then just will form engaging portion between the material of accessory and the material of flat part.The engaging portion is vulnerable to ambient moisture
Invasion, and therefore corrosion-vulnerable.In order to avoid the intrusion of ambient moisture, engaging portion is made to plate the coat of metal.
But in practical electroplating process, above-mentioned engaging portion gap can enter electroplate liquid in impurity and be difficult to remove thorough
Bottom, after the connecting element places a period of time after plating, the electrolyte remained in gap is precipitated, coating is caused to blister,
It falls off, to cause the corrosion of connecting element, reduces the service life of conductor terminal, or even will cause line short and lead
Cause the generation of pyrophoricity accident.
Therefore, it is urgent to provide it is a kind of connect with aluminum steel when the conductor terminal with higher reliability and safety.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, be to provide one kind can be effective for first goal of the invention of the invention
Corrosion is resisted, the conductor terminal service life is helped to improve, is effectively reduced and line short is occurred or fired because contact resistance increases
The conductor terminal of failure risks such as burn, the second goal of the invention of the invention is to provide a kind of above-mentioned conductor terminal
Preparation method.
In order to realize that above-mentioned first goal of the invention, the technical solution adopted in the present invention content are specific as follows:
A kind of conductor terminal, including fixing piece and connector, the fixing piece is for connecting power device, the company
The surface of fitting is equipped with groove, it is characterised in that: further includes the contact that core is led for connecting wire, the contact is seamless
Connect the groove；Also, a some or all of object at least in the fixing piece, connector, contact surface
On be provided with corrosion protective layer.
Further, material phase of the material of the contact at least with an object in the fixing piece, connector
It is different.
Preferably, the fixing piece and connecting piece material contain copper or copper alloy, aluminum or aluminum alloy, zinc or kirsite, tin
Or one or more of tin alloy, nickel or nickel alloy, silver or silver alloy, gold or billon, titanium or titanium alloy.
Further, the connector is in plate-like structure or U-shaped structure or excellent arc structure or cylinder-like structure or bowl
Shape structure or polygonized structure.
Further, the Thickness range of the contact is between 0.01 μm -1000 μm.
Preferably, the Thickness range of the contact is between 0.1 μm -800 μm.
Further, the area of the contact at least accounts for the 1% of the connector surface area.
Further, the material of the corrosion protective layer at least contain nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminium, tin, titanium, zinc,
One of copper, silver or gold.
Further, the Thickness range of the corrosion protective layer is between 0.01 μm -1000 μm.
In order to realize that above-mentioned second goal of the invention, the technical solution adopted in the present invention content are specific
It is as follows:
A kind of preparation method of above-mentioned conductor terminal comprising
Connection Step: the groove is processed on the raw material for preparing the conductor terminal, in a manner of being seamlessly connected
The raw material for preparing the contact are arranged on the groove；
Forming step: the raw material for preparing the conductor terminal are processed to form the fixing piece and connector.
Further, the seamless connection mode includes at least plating or electric arc spraying or plasma spraying or high-speed flame
Spraying or combustion flame spraying or supersonic spray coating or hot-dip or chemical plating or coating or sputtering spraying are laser sintered or true
One of empty sputter.Further, preparation method of the invention further includes
Corrosion-protective step: at least described fixing piece, connector, an object in contact is arranged in corrosion protective layer
On some or all of part surface.
Specifically, at least described fixing piece, connector, an object in contact is arranged in the corrosion protective layer
Some or all of on surface.
Preferably, the corrosion protective layer connection type includes at least plating or electric arc spraying or plasma spraying or height
Fast flame-spraying or combustion flame spraying or supersonic spray coating or hot-dip or chemical plating or coating or sputtering spraying or laser are burnt
One of knot or vacuum splashing and plating.
Compared with prior art, the beneficial effects of the present invention are:
1. due to being seamless connection between the groove and contact of connector of the present invention, to be effectively guaranteed contact
Being completely embedded property between connector has completely cut off the intervention of air and water, reaches and slows down electrification between contact and connector
The effect of corrosion is learned, to extend the service life of conductor terminal, is effectively reduced and line short occurs or even mistake of burning
The failure risk of fire.
2. a some or all of object at least in the fixing piece, connector, contact is provided on surface
Corrosion protective layer helps further to resist external environment corrosion, thus the service life of extension lead connection terminal.
3. connector of the invention is in plate-like structure or U-shaped structure or excellent arc structure or cylinder-like structure or bowl-shape knot
Structure or polygonized structure, so that conductor terminal of the invention be made to be adapted to different use occasions and different connection sides
Formula.
For the performance of terminal in terminal more of the invention and comparison patent CN102113177B, inventor is respectively to two
The terminal of kind structure has carried out the test of pulling capacity and voltage drop, as shown in the table:
As can be seen from the above table, the terminal of structure of the invention, pulling capacity and voltage drop performance are inherently better than comparing patent
In terminal structure performance, and after salt spray test, the pulling capacity and the decline of voltage drop performance for comparing patent terminal are wanted
Far beyond terminal of the present invention.Therefore, it can be seen that terminal of the present invention from mechanical performance and electric property, will be better than comparison
Patent terminal.And pass through a large amount of verification experimental verification of inventor, the service life of terminal of the present invention also will be more than comparison patent end
Son about 20% or so.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 .1 is the structural schematic diagram of the first embodiment of conductor terminal of the invention；
Fig. 1 .2 is the partial cross structure chart one of Fig. 1 .1；
Fig. 1 .3 is the partial cross structure chart two of Fig. 1 .1；
Fig. 1 .4 is the partial cross structure chart three of Fig. 1 .1；
Fig. 2 is the structural schematic diagram of second of embodiment of conductor terminal of the invention；
Fig. 3 is the structural schematic diagram of the third embodiment of conductor terminal of the invention；
Fig. 4 is the structural schematic diagram of 4th kind of embodiment of conductor terminal of the invention；
Also, the reference numerals are as follows by Fig. 1 .1- Fig. 4:
1, connector；2, fixing piece；3, corrosion protective layer；4, contact；5, conducting wire；6, groove.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect according to the present invention, detailed description are as follows:
Embodiment one
Fig. 1 .1 to Fig. 1 .4 is the first embodiment of conductor terminal of the invention, including fixing piece and connector,
The fixing piece is equipped with groove for connecting power device, the surface of the connector, and the present embodiment further includes for connecting
Conducting wire leads the contact of core, and the contact is seamlessly connected the groove；Also, at least in the fixing piece, connector, contact
A some or all of object in part is provided with corrosion protective layer on surface.
The power device includes battery, electrode, generator, the electrical appliance in the vehicle bodies such as starter motor.
Fig. 1 .2 is the first structure of the present embodiment, and contact is arranged in the groove of connector, the contact side
Face is flat construction, and the height of the contact and corrosion protective layer maintains an equal level.
Fig. 1 .3 is second of structure of the present embodiment, is with unique difference of the first above-mentioned structure: described to connect
Contact element side is step structure.
Fig. 1 .4 is the third structure of the present embodiment, is with unique difference of the first above-mentioned structure: described to connect
The bottom surface of contact element is concave-convex alternate structure.
In the present embodiment, material of the material of the contact at least with an object in the fixing piece, connector
Matter is different.
In the present embodiment, the preferred copper alloy of the material of the fixing piece and connector, copper often use conductive gold in nature
Electric conductivity is only second to silver in category, and the conductor material of major part electric terminal and conducting wire all uses copper material at present.And due to
The material is soft for fine copper, therefore preferable using intensity, and conductivity is also able to satisfy the copper alloy of requirement.In other examples, institute
It states fixing piece and connecting piece material contains copper or copper alloy, aluminum or aluminum alloy, zinc or kirsite, tin or tin alloy, nickel or nickel close
One or more of gold, silver or silver alloy, gold or billon, titanium or titanium alloy.
Wherein, the copper alloy includes ormolu, corronil and copper-tin alloy etc.；The aluminium alloy includes that magnalium closes
Gold, alusil alloy and aluminium lithium alloy etc.；The kirsite includes allumen and pltine etc.；The tin alloy includes tin copper
Alloy, leypewter and red brass etc.；The nickel alloy includes monel, nichrome and nickel-manganese etc.；The silver
Alloy includes yellow gold, silver-colored magnesium alloy and silver-nickel etc.；The billon includes that electrum, gold copper and golden nickel close
Gold etc.；The titanium alloy includes titanium-aluminium alloy, titanium maxter alloy, titanium chrome alloy and titanium-zirconium alloy etc..
The connector is in plate-like structure, general that conducting wire is led core connection by the way of welding in connecting wire
Onto connector, the advantage is that: the small volume of tie point, can be adapted for the lesser region of installation space, facilitates installation.
In order to make electrical connector made of conductor terminal be able to satisfy the requirement and safety requirements of automobile industry,
Electrical connector used in automotive field, in general pulling capacity are greater than 200N, and voltage drop will be controlled in 0.5mV or less.
Further, inventor understands influence of the different contact thickness to conductor terminal performance, makes
With same thickness, material fixing piece and connector made of conductor terminal, and on connector be provided with same material,
The contact of different-thickness connects into electrical connector with the conducting wire of identical line footpath, has done a series of mechanics and electrical testing.Such as table
Shown in 1:
The different contact thickness of table 1 is to the pulling capacity of electrical connector and the influence data of voltage drop
As can be seen from the above table, when the contact thickness is less than 0.01 μm, the pulling capacity of electrical connector is decreased obviously,
Pulling capacity is lower than 200N, has been unsatisfactory for the mechanical property requirements of electrical connector.The voltage drop value of electrical connector is gradually increasing,
Through being greater than 0.5mV, it is unsatisfactory for the electrical performance requirements of electrical connector.
When contact thickness is greater than 0.01 μm, when less than 0.1 μm, the pulling capacity of electrical connector is gradually increasing, voltage drop value
It is gradually reduced, has met the mechanical performance and electrical performance demands of electrical connector.
When contact thickness is greater than 0.1 μm, when less than 800 μm, mechanical performance and the electric property approach of electrical connector are steady
It is fixed, and it is much larger than standard specification value, it can guarantee the requirement of electrical connector.
When contact thickness is greater than 800 μm, when less than 1000 μm, the mechanical performance and electric property of electrical connector drop to
The boundary of acceptability limit.
When contact thickness is greater than 1000 μm, the pulling capacity of electrical connector is decreased obviously, and pulling capacity is lower than 200N,
It is unsatisfactory for the mechanical property requirements of electrical connector.The voltage drop of electrical connector is significantly raised, has exceeded the range of 0.5mv,
It is unsatisfactory for the electrical performance requirements of electrical connector.
It can be seen that from two above-mentioned tables of data when contact thickness is less than 0.01 μm, alternatively, when being greater than 1000 μm,
The mechanical performance and electric property of electrical connector are undesirable, in order to meet the mechanical property and electric property of electrical connector,
The thickness of contact is set as between 0.01 μm -1000 μm by inventor's selection.
Preferably, the contact is with a thickness of 0.1 μm -800 μm, to make the electric property and power of electrical connector obtained
Learn performance more preferably.
As a preferred mode, the area of the contact at least accounts for the 1% of the connector surface area.In this reality
It applies in example, the area of the contact accounts for the 10% of the connector surface area.
Further, the ratio that the area that inventor understands the contact accounts for the connector surface area connects conducting wire
The influence of connecting terminal performance, using same thickness, material fixing piece and connector made of conductor terminal, and connecting
Same material is provided on part, the contact of different area connects into electrical connector with the conducting wire of identical line footpath, done a series of
Mechanics and electrical testing.It is as shown in table 2:
The area of the different contacts of table 2 accounts for pulling capacity of the ratio to electrical connector of the connector surface area
With the influence of voltage drop
As can be seen from the above table, it when the area of the contact accounts for 1% or less the connector surface area, electrically connects
The pulling capacity of head is decreased obviously, and voltage drop is significantly raised, has been unsatisfactory for the mechanical property and electrical performance requirements of electrical connector.
Therefore, the area that inventor sets the contact at least accounts for the 1% of the connector surface area.
Further, since the use environment situation of conductor terminal is complicated, the fixing piece, connector and contact
Part is likely to be corroded under moist or high/low temperature ambient conditions, so that the service life of conductor terminal is reduced,
The disabler for making electrical connections also results in safety accident when serious, therefore the present invention needs to remove the contact and lead
Line is led except the join domain of core, at least some or all of in the fixing piece, connector, contact object table
Corrosion protective layer is provided on face.
Wherein, the material of the corrosion protective layer at least contain nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminium, tin, titanium, zinc, copper,
One of silver or gold.
Even and if the corrosion protective layer of unlike material under identical use environment to the mechanical property of conductor terminal
Variant with electric property, inventor understands the corrosion protective layer of unlike material and connects without corrosion protective layer to conducting wire
The influence of connecting terminal performance, using same thickness, material fixing piece and connector made of conductor terminal, and connecting
Same material is provided on part, contact of the same area uses the anticorrosion of no corrosion protective layer and above-mentioned material respectively
Protective layer makes electrical connector using identical conducting wire, and has done a system after 48 hours salt mist experiments in electrical connector
Column mechanics and electrical testing.It is as shown in table 3:
Influence of the different corrosion protective layer materials of table 3 to electrical connector performance
As can be known from the above table, after 48 hours salt mist experiments, the conductor terminal of no corrosion protective layer, electrically
The pulling capacity of connector is decreased obviously, and voltage drop obviously rises, and the pulling capacity that can not preferably meet electrical connector is greater than 200N,
Voltage drop will be in 0.5mV requirement below.And other have the conductor terminal of corrosion protective layer, electrical connector after test
Pulling capacity and voltage drop still meet the mechanical property and electrical performance requirements of electrical connector, therefore, inventor is by anticorrosion
The material setting of protective layer is at least containing one of nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminium, tin, titanium, zinc, copper, silver or gold.
Inventor understands influence of the thickness to conductor terminal performance of corrosion protective layer, using same thickness,
Conductor terminal made of the fixing piece and connector of material, and same material is coated on connector, it is of the same area
The corrosion protective layer of different-thickness is respectively set in contact, using identical conducting wire, makes electrical connector, small by 48
When salt mist experiment after, done a series of mechanics and electrical testing.It is as shown in table 4:
Influence of the different corrosion protective layer thickness of table 4 to electrical connector performance
As can be known from the above table, after 48 hours salt mist experiments, thickness the leading less than 0.01 μm of corrosion protective layer
The pulling capacity of line connection terminal, electrical connector obviously drops to 200N hereinafter, voltage drop is significantly more than 0.5mV, can not be preferable
The mechanics and electric property for meeting electrical connector.
When the thickness of corrosion protective layer is greater than 1000 μm of conductor terminal, after salt spray test, electrical connector
Pulling capacity is less than 200N, and voltage drop has been more than 0.5mV, thus also can not preferably meet the mechanical property and electricity of electrical connector
Performance.
Therefore, inventor sets the thickness of the corrosion protective layer between 0.01 μm -1000 μm.User can be with
The corrosion protective layer thickness for needing to select to be suitble to is used according to actual.
And there are two types of the preparation methods of conductor terminal of the present invention, the step of first method specifically include as
Under:
The first step is Connection Step: processing the groove, on the raw material for preparing the conductor terminal with seamless
The raw material for preparing the contact are arranged on the groove connection type；
Second step is forming step: the raw material for preparing the conductor terminal being processed to form the fixing piece and company
Fitting.
Third step is corrosion-protective step: corrosion protective layer is arranged in at least described fixing piece, connector, contact
Some or all of object surface on.
Wherein, seamless connection described in the above method first step can be used including at least plating or electric arc spraying or be waited
Plasma spray or high speed flame spraying or combustion flame spraying or supersonic spray coating or hot-dip or chemical plating or coating or sputtering
Spraying or one of laser sintered or vacuum splashing and plating are realized.
Meanwhile specifically, corrosion protective covering described in third step is arranged in at least described fixing piece, connector, contact
On a some or all of object in part surface.
Further, the corrosion protective covering connection type includes at least plating or electric arc spraying or plasma spraying or height
Fast flame-spraying or combustion flame spraying or supersonic spray coating or hot-dip or chemical plating or coating or sputtering spraying or laser are burnt
One of knot or vacuum splashing and plating.
Various corrosion protective covering connection types are explained below as follows:
Plating is to plate the process of the other metal or alloy of a thin layer on certain metal surfaces using electrolysis principle.
Electric arc spraying is to be heated sprayed on material with electric arc, and heated material forms the particle of melting or semi-molten state,
These particles are with certain velocity shock and are deposited on matrix surface, form spray coating with certain characteristics.
Plasma arc is to concentrate energy more through overcompression free electric arc, and gas is adequately ionized the electric arc to be formed.Deng
Plasma spray principle is identical as arc spraying technology, and only heating source is changed to plasma arc, can process the higher gold of fusing point
Belong to material.
High speed flame spraying is that continuous burning, burned flame are burning in a combustion chamber with burning gases by combustion-supporting gas
Indoor generation high pressure and the expanding nozzle by coupling with combustor exit generate high speed flame stream, and sprayed on material is sent into high-speed jet
In be heated, accelerating jetting to the method by forming coating on pretreated matrix surface.Can be used acetylene, propane, propylene,
Hydrogen etc. is used as combustion gas, it is possible to use the liquid fuels such as diesel oil or kerosene.It is not very that high speed flame spraying technology, which is suitable for fusing point,
High metal material.
Combustion flame spraying, which refers to, is melted sprayed on material (wire or powder) using the high temperature of gas burning flame, and
It is ejected on workpiece surface with compressed air stream and forms coating.Flame-spraying is suitable for the very low metal material of fusing point.
Supersonic spray coating technology is to generate supersonic airstream by scaling type Bearing score pipe using compressed gas, by powder along axis
To being sent into supersonic airstream, gas-solid two-phase flow is formed, matrix is hit under complete solid-state after accelerated, biggish modeling occurs
Property deformation and be deposited on matrix surface and form coating.
Hot-dip is that a kind of parent metal is immersed in another low-melting-point metal of molten condition, is formed on its surface one
The method of layer metal protective film.Hot-dip applies in general to the metal that coated metal is low melting point, such as zinc or aluminium.
Chemical plating is that one kind does not need to be powered, according to principle of oxidation and reduction, using strong reductant containing metal from
In the solution of son, metal ion is reduced into metal and is deposited on the method that a variety of materials surface forms close coating.
Coating is on substrate surface, to cover layer of material with the methods of dipping, spraying or spin coating.
Sputtering spraying is struck on the material by charged ion after electric field acceleration, and the atom of the material is made
It is separated with bigger speed, carries enough kinetic energy and reach in connecting element.
Technology laser sintered, that powder compact is sintered as heat source using laser.Since the neutralization of laser beam collection penetrates
Ability is small, suitable for the sintering to small area, laminate.The powder or the sintering of thin slice green compact for being easy to will differ from matrix composition exist
Together.
Vacuum splashing and plating is passed through inert gas appropriate as medium, leans on inert gas accelerating impact target under vacuum conditions
Material is knocked out target material surface atom, and forms plated film on surface.
The second method of the preparation method of conductor terminal of the present invention is unique with above-mentioned first method
Distinctive points are that forming step and Connection Step exchange, and can equally prepare conductor terminal of the present invention.
Embodiment two
Fig. 2 is second of embodiment of conductor terminal of the invention, with the first embodiment shown in Fig. 1 .1
Unique difference is: the connector 2 is in U-shape structure or excellent arc structure.When the connector is in U-shape structure shape or major arc
It is general by the way of crimping when shape structure, the U-shaped structure shape or the crimping of excellent arc structure are deformed and are wrapped in conducting wire and led
On core.Its advantage is that connection is relatively more firm, contact area is big, and electric conductivity and mechanical property are preferable, and due to being U-shaped structure
The semi-closed structure of shape or excellent arc structure, therefore can be processed on automatic equipment, process time is reduced, production is improved
Efficiency.
Moreover, the connector for the structure that is in U-shape is generally using curling crimping, i.e. U-shaped structure both sides curling overturning docking indentation
To leading in core for aluminum conductor, advantage is that connector crimping lead wire is closer, and connector both sides and conductive contact area are big, conductive
Preferable, the high mechanical properties of property.
And in the connector of excellent arc structure generally using overlapping crimping, i.e., the annular both sides overlapping of excellent arc structure tightens
Aluminum conductor leads core, and advantage is that crimping completes rear connectors and basically form smooth type curved surface package to lead core, and there is no stress to concentrate
The case where causing connector to be broken.
Embodiment three
Fig. 3 is the third embodiment of conductor terminal of the invention, with the first embodiment shown in Fig. 1 .1
Unique difference is: the cylindrical structure of connector 2.Conducting wire is led core to be inserted into the cylinder-like structure, then
By the way of crimping or welding, conducting wire is led into core and connector links together.The advantage is that: stable connection, contact surface
Product is big, and electric conductivity and mechanical property are good.And be enclosed construction, will not because installation environment it is severe caused by connector cracking or
It is damaged.
Example IV
Fig. 4 is the 4th kind of embodiment of conductor terminal of the invention, with the first embodiment described in Fig. 1 .1
Unique difference is: the quantity of the fixing piece 1 is one, and the quantity of the connector has 2 or more, the contact
Quantity is 2 or more, and the fixing piece connects described 2 simultaneously with upper connector.The contact connects corresponding conducting wire 5.
In the present embodiment, the quantity of the connector preferably 3 shown in Fig. 4.Since in certain electrical connections, wire connecting ends
Son not only connects a conducting wire, such as in new energy high-tension battery packet, needs to connect the positive and negative anodes of multiple battery modules.Therefore
It has multiple conducting wires to be connected on conductor terminal, inventor is provided with multiple contacts, Ke Yishi on the connector
For needing the case where connecting multiple conducting wires, wiring space can be saved, reduces processing built-up time, improves production assembling
Efficiency.
Embodiment five
5th kind of specific embodiment of conductor terminal of the invention, with the first embodiment shown in Fig. 1 .1
Unique difference be: the connector be in bowl structure.Conducting wire is led core to be inserted into the bowl structure, is then used
The mode of crimping or welding, leads core for conducting wire and connector links together.The advantage is that: stable connection, contact area is big,
Electric conductivity and mechanical property are good.And due to being enclosed construction, will not because installation environment it is severe caused by connector cracking or
It is damaged.
Embodiment six
5th kind of specific embodiment of conductor terminal of the invention, with the first embodiment shown in Fig. 1 .1
Unique difference be: the connector be in polygonized structure.Its advantage is that connection is relatively more firm, contact area is big, fits
Core is led with conducting wire of different shapes, electric conductivity and mechanical property are preferable.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (12)
1. a kind of conductor terminal, including fixing piece and connector, the fixing piece is for connecting power device, the connection
The surface of part is equipped with groove, it is characterised in that: and it further include the contact that core is led for connecting wire, the seamless company of contact
Connect the groove；Also, on a some or all of object at least in the fixing piece, connector, contact surface
It is provided with corrosion protective layer.
2. conductor terminal according to claim 1, it is characterised in that: the material of the contact at least with it is described solid
It is different to determine part, the material of an object in connector.
3. conductor terminal according to claim 2, it is characterised in that: the fixing piece and connecting piece material contain copper
Or copper alloy, aluminum or aluminum alloy, zinc or kirsite, tin or tin alloy, nickel or nickel alloy, silver or silver alloy, gold or billon, titanium
Or one or more of titanium alloy.
4. conductor terminal according to claim 1, it is characterised in that: the connector is in plate-like structure or U-shaped
Structure or excellent arc structure or cylinder-like structure or bowl structure or polygonized structure.
5. conductor terminal according to claim 1, it is characterised in that: the Thickness range of the contact exists
Between 0.01 μm -1000 μm.
6. conductor terminal according to claim 5, it is characterised in that: the Thickness range of the contact exists
Between 0.1 μm -800 μm.
7. conductor terminal according to claim 1, it is characterised in that: the area of the contact at least accounts for the company
The 1% of fitting surface area.
8. conductor terminal according to claim 1, it is characterised in that: the material of the corrosion protective layer at least contains
There are one of nickel, cadmium, zirconium, chromium, cobalt, manganese, aluminium, tin, titanium, zinc, copper, silver or gold.
9. conductor terminal according to claim 1, it is characterised in that: the Thickness model of the corrosion protective layer
It is trapped among between 0.01 μm -1000 μm.
10. a kind of preparation method of conductor terminal described in -9 any one according to claim 1, it is characterised in that: packet
It includes
Connection Step: processing the groove on the raw material for preparing the conductor terminal, will system in a manner of being seamlessly connected
The raw material of the standby contact are arranged on the groove；
Forming step: the raw material for preparing the conductor terminal are processed to form the fixing piece and connector.
11. preparation method according to claim 10, it is characterised in that: the seamless connection mode include at least plating or
Electric arc spraying or plasma spraying or high speed flame spraying or combustion flame spraying or supersonic spray coating or hot-dip or chemical plating
One of or coat or sputter spraying or laser sintered or vacuum splashing and plating.
12. preparation method according to claim 10, it is characterised in that: further include
Corrosion-protective step: at least described fixing piece, connector, an object in contact is arranged in corrosion protective layer
On part or all of surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910337940.2A CN110098499A (en) | 2019-04-25 | 2019-04-25 | A kind of conductor terminal and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910337940.2A CN110098499A (en) | 2019-04-25 | 2019-04-25 | A kind of conductor terminal and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110098499A true CN110098499A (en) | 2019-08-06 |
Family
ID=67445705
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910337940.2A Pending CN110098499A (en) | 2019-04-25 | 2019-04-25 | A kind of conductor terminal and preparation method thereof |
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| CN (1) | CN110098499A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113177B (en) * | 2008-08-01 | 2014-04-16 | 自动电缆管理有限责任公司 | Motor vehicle conductor connection element |
| JP2016110850A (en) * | 2014-12-08 | 2016-06-20 | 日立金属株式会社 | Electric wire with terminal fitting, and method of manufacturing the same |
| CN107104292A (en) * | 2017-06-05 | 2017-08-29 | 吉林省中赢高科技有限公司 | A kind of joint and its method for resistance welding of copper tip and aluminum conductor |
| CN108418001A (en) * | 2018-02-13 | 2018-08-17 | 长春捷翼汽车零部件有限公司 | A kind of connector of copper tip and aluminum conductor |
| CN209730221U (en) * | 2019-04-25 | 2019-12-03 | 吉林省中赢高科技有限公司 | A kind of conductor terminal |
-
2019
- 2019-04-25 CN CN201910337940.2A patent/CN110098499A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113177B (en) * | 2008-08-01 | 2014-04-16 | 自动电缆管理有限责任公司 | Motor vehicle conductor connection element |
| JP2016110850A (en) * | 2014-12-08 | 2016-06-20 | 日立金属株式会社 | Electric wire with terminal fitting, and method of manufacturing the same |
| CN107104292A (en) * | 2017-06-05 | 2017-08-29 | 吉林省中赢高科技有限公司 | A kind of joint and its method for resistance welding of copper tip and aluminum conductor |
| CN108418001A (en) * | 2018-02-13 | 2018-08-17 | 长春捷翼汽车零部件有限公司 | A kind of connector of copper tip and aluminum conductor |
| CN209730221U (en) * | 2019-04-25 | 2019-12-03 | 吉林省中赢高科技有限公司 | A kind of conductor terminal |
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