CN101317301A - Crimp-style terminal for aluminum strand and terminal structure of aluminum strand having the crimp-style terminal connected thereto - Google Patents
Crimp-style terminal for aluminum strand and terminal structure of aluminum strand having the crimp-style terminal connected thereto Download PDFInfo
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- CN101317301A CN101317301A CNA2006800441559A CN200680044155A CN101317301A CN 101317301 A CN101317301 A CN 101317301A CN A2006800441559 A CNA2006800441559 A CN A2006800441559A CN 200680044155 A CN200680044155 A CN 200680044155A CN 101317301 A CN101317301 A CN 101317301A
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Abstract
A crimp-style terminal for an aluminum strand having a serration (5) provided in the inner surface (1b) of its crimping part (1), in which the ratio (d/e) of the depth (d) of grooves (4) forming the serration (5) to the diameter (e) of aluminum wires (7) forming the aluminum strand (6) is 0.33 or higher and the number of the grooves (4) is three or more. A terminal structure of an aluminum strand in which the crimp-style terminal for the aluminum strand is crimped, and the ratio of the cross section of the aluminum strand (6) before crimping to the cross section thereof after crimping is 0.7 to 0.95.
Description
Technical field
The present invention relates to be suitable for to use the automobile-use electrical harness of aluminum strand or storage battery cable etc. electrical connection crimp type terminal and use the terminal structure of the good aluminum strand of the electrical connectivity of described crimp type terminal.
Background technology
Aluminum strand with the lead that is made of aluminium class material uses as cable.When being connected to each other in the time of on this cable being connected various electric devices etc. or with cable, be provided with splicing ear,, often use the splicing ear of pressure connection terminal subtype as such splicing ear at the aluminum strand terminal part.
As shown in Figure 5, this crimp type terminal comprises the pressure contact portion 10 and the bolt linking part 13 of section U word shape, be provided with by the comb slot part 12 that is used to prevent that a plurality of grooves 11 that aluminum strand is deviate from from constituting at pressure contact portion 10 inner faces, be provided with the hole 14 that is used for break-through bolt etc. at linking part 13.
The aluminum strand (not having diagram) of peeling aluminium cable terminal crust off and exposing is inserted into pressure contact portion 10, and the sidewall 15 of pushing pressure contact portion 10 from the outside carries out crimping.The aluminium strand that constitutes described aluminum strand embeds by described crimping in the groove 11 of comb slot part 12 and prevents from, and, make that the oxide skin of the aluminium strand that constitutes aluminum strand is destroyed and metal is exposed, thereby obtain good electrical connection.
Internuncial improvement for aluminum strand and crimp type terminal has proposed various schemes.
For example, the metal dust more soft than aluminum strand is dispersed in the pressure contact portion inner face, pressure contact portion inner face and aluminum strand are connected together with fixed attention; To disperse than the powder of aluminum strand hard, destroy the oxide skin on aluminium strand surface; Disperse hard and soft powder; Make the insert depth difference of comb slot part (groove); To comb slot part (groove) and form helical form; And projection etc. is set at the pressure contact portion inner face.
Yet have following or the like problem, that is, when metal dust being disperseed or adhere to, need cost cost and man-hour, in addition, the structure of described groove and the shape that the comb slot part of projection is set can't fully prevent the deterioration all the year round of contact resistance.
Summary of the invention
Problem of the present invention is, provides a kind of aluminum strand of deterioration all the year round that does not need to spend cost and man-hour and can prevent electrical connectivity with the terminal structure of the good aluminum strand of the electrical connectivity of crimp type terminal and the described crimp type terminal of crimping and mechanical connection.
According to the present invention, following technical scheme can be provided,
(1) a kind of aluminum strand crimp type terminal, it is provided with the comb slot part at the pressure contact portion inner face, it is characterized in that, and the groove depth d that constitutes described comb slot part is more than 0.33 with the ratio (d/e) of the diameter e of the aluminium strand that constitutes described aluminum strand, and described groove number is more than 3.
(2) as (1) described aluminum strand crimp type terminal, it is characterized in that described pressure contact portion is made of copper or copper alloy, the stress relaxation rate of described pressure contact portion is below 70%.
As (1) or (2) described aluminum strand crimp type terminal, it is characterized in that (3) described aluminum strand crimp type terminal is the following brass of crystal grain 50 μ m.
As each described aluminum strand crimp type terminal in (1)～(3), it is characterized in that (4) described aluminum strand is more than the 25%IACS with the conductance of crimp type terminal.
As each described aluminum strand crimp type terminal in (1)～(4), it is characterized in that (5) described aluminum strand is that 400MPa is above, Vickers hardness is 90N/mm with the tensile strength of crimp type terminal
2More than.
(6) as each described aluminum strand crimp type terminal in (1)～(5), it is characterized in that, described aluminum strand is more than 2 times of tensile strength that constitute the strand of aluminum strand with the tensile strength of crimp type terminal, and Vickers hardness is more than 2 times of strand hardness that constitute aluminum strand.
(7) as each described aluminum strand crimp type terminal in (1)～(6), it is characterized in that, described aluminum strand with the surface of crimp type terminal impose more than the 1 μ m, the plating Sn layer or the plating layer of the following thickness of 20 μ m.
As (7) described aluminum strand crimp type terminal, it is characterized in that (8) described plating Sn layer has the pure Sn layer of the above thickness of 0.2 μ m.
(9) as (7) or (8) described aluminum strand crimp type terminal, it is characterized in that, implement plating Cu layer or plating Ni layer with the plating Sn layer of crimp type terminal or the prime coat of plating layer as described aluminum strand.
(10) as each described aluminum strand crimp type terminal in (7)～(9), it is characterized in that, implement plating Cu layer with the prime coat of the plating Sn layer of crimp type terminal as described aluminum strand, and then, plating Ni layer implemented as its prime coat.
(11) a kind of terminal structure of aluminum strand, it is the terminal structure that is crimped with the aluminum strand of each described aluminum strand usefulness crimp type terminal in (1)～(10), it is characterized in that the ratio (p/q) of the sectional area q before the sectional area p after the described aluminum strand crimping and the crimping is 0.7～0.95.
As the terminal structure of (11) described aluminum strand, it is characterized in that (12) oxide thickness that constitutes the aluminium strand of described aluminum strand is below the 20nm.
Described and other feature and advantage of the present invention, the following explanation by the reference accompanying drawing as can be seen.
Description of drawings
Fig. 1 (a)～Fig. 1 (c) is the key diagram of expression aluminum strand of the present invention with a kind of execution mode of crimp type terminal, Fig. 1 (a) is the stereogram of crimp type terminal, Fig. 1 (b) is the key diagram of comb slot part for the stereogram of the aluminium cable of the crust of removal terminal part, Fig. 1 (c);
Fig. 2 is the front elevation of expression aluminum strand of the present invention with the another kind of execution mode of crimp type terminal;
Fig. 3 (a) and Fig. 3 (b) are the profiles of a kind of execution mode of expression aluminum strand terminal structure of the present invention, and Fig. 3 (a) expression sectional area ratio is 0.7 structure, and Fig. 3 (b) expression sectional area ratio is 0.95 structure;
Fig. 4 (a) and Fig. 4 (b) are the profiles of the another kind of execution mode of expression aluminum strand terminal structure of the present invention, and Fig. 4 (a) expression sectional area ratio is 0.7 structure, and Fig. 4 (b) expression sectional area ratio is 0.95 structure;
Fig. 5 is the stereogram of existing aluminum strand with crimp type terminal.
Embodiment
Below, to aluminum strand of the present invention preferred embodiment, be specifically described with reference to accompanying drawing with crimp type terminal.
Shown in Fig. 1 (a), crimp type terminal of the present invention possesses the pressure contact portion 1 of section U word shape (open tubular) and is provided with the linking part 3 of bolt hole 2, is provided with the comb slot part 5 that is made of three grooves 4 arranged side by side at pressure contact portion 1 inner face.And, shown in Fig. 1 (b), remove for example crust 8 of aluminium cable 9 terminal parts, the aluminum strand 6 that will expose inserts pressure contact portion 1, pushes the sidewall 1a of pressure contact portion 1 from the outside, and forms the terminal structure of aluminum strand.
In addition, in Fig. 1 (a), C be from the center of bolt hole 2 to the distance of pressure contact portion 1 rear end, F is the distance to pressure contact portion 1 front end from bolt hole center, C-F represents the length of pressure contact portion 1.
In the present invention, the ratio (d/e) of diameter e (with reference to Fig. 1 (b)) of establishing the depth d (with reference to Fig. 1 (c)) of groove 4 and constituting the aluminium strand 7 of aluminum strand 6 is more than 0.33, and establishing the groove number is more than 3.
In the present invention, the depth d of the groove 4 of comb slot part 5 and the ratio (d/e) of diameter e that constitutes the aluminium strand 7 of aluminum strand 6 are defined as more than 0.33, and the groove number of groove 4 is defined as more than 3, be because when than (d/e) less than 0.33, groove 4 quantity of combing slot part 5 less than 3 the time, can't stablize and obtain good electrical connectivity.
In the present invention, the slot length direction of the comb slot part of pressure contact portion inner face usually and the length direction quadrature of aluminium cable 9, but, change by twisted angle b (with reference to Fig. 1 (b)) according to the length direction (arrow among Fig. 1 (b)) of the relative aluminium cable of aluminum strand, can improve bonding strength etc.
Crimp type terminal shown in Figure 2 is the crimp type terminal that is connected with accumulator terminal, and the diameter in the hole 2 of linking part 3 is bigger slightly than the diameter of accumulator terminal.The direction quadrature in the opening direction of the pressure contact portion 1 of this crimp type terminal and the hole 2 of linking part 3.Described two directions of crimp type terminal shown in Fig. 1 (a) are parallel.
Conductive metal plates such as crimp type terminal available copper of the present invention, copper alloy, aluminium, aluminium alloy are made, still, and preferably with conductivity and good copper or the copper alloy made of mechanical strength.In addition, for pressure contact portion and the resistance between aluminum strand that prevents to cause because of the cold cycling in using increases, the stress relaxation rate of pressure contact portion is preferably below 70%.
Wherein, as the material of crimp type terminal, when to use crystal grain be brass below the 50 μ m, can improve the bonding strength of crimp type terminal and aluminium strand, therefore be preferred, and more preferably crystal grain is below the 30 μ m, further preferably below the 20 μ m.
Crimp type terminal can be one-body molded and make with described conductive metal plate, but also conductive metal blank cut can be made.
And then the conductance of this crimp type terminal is more than the 25%IACS, is preferred from the conductivity aspect.
In addition, when the tensile strength of crimp type terminal is more than the 400Mpa, Vickers hardness is 90N/mm
2When above,, be preferred therefore owing to can improve the bonding strength of crimp type terminal and aluminium strand.When the tensile strength of described pressure contact portion be aluminum strand strand tensile strength more than 2 times and hardness be aluminum strand strand hardness more than 2 times the time, owing to when crimping, be easy to generate newborn face, making the resistance between terminal and aluminium strand low and stable, is preferred therefore.
In the present invention, preferably implement plating Sn layer or plating layer on the surface of combing slot part at least of crimp type terminal, its thickness is preferably more than the 1 μ m.By implementing plating Sn layer or plating layer, in the time of can increasing crimping and the connecting airtight property of aluminium strand, make resistance low and stable.In addition, if blocked up, the aluminium strand is few to the embedding of comb slot part in the time of just will causing crimping, therefore, is preferably below the 20 μ m.And then, in order to prevent to increase,, implement plating Cu layer or plating Ni layer as the prime coat of plating Sn layer or plating layer because of the cold cycling in using makes the resistance between pressure contact portion and aluminum strand, more preferably they are alternately disposed more than one deck.And then, when plating Sn layer,, preferably the thickness of pure Sn layer is made more than the 0.2 μ m in order to keep corrosion resistance.
As another way of the present invention, preferably implement plating Cu layer, and then preferably implement to plate the Ni layer as its prime coat as the prime coat of the plating Sn layer of aluminum strand being used the crimp type terminal surface implement.
Below, the terminal structure of aluminum strand of the present invention is described.
This terminal structure is as follows,, will remove the crust 8 of aluminium cable 9 terminals shown in Fig. 1 (b) and the aluminum strand that exposes 6 inserts the pressure contact portion 1 of the crimp type terminal shown in Fig. 1 (a) that is, pushes the sidewall 1a of pressure contact portion 1 from the outside, and aluminum strand 6 is crimped on pressure contact portion 1.The section of this terminal structure is shown in Fig. 3 (a) and Fig. 3 (b), and the sectional area ratio (p/q) before and after 6 crimping of Fig. 3 (a) expression aluminum strand is 0.7 situation, and the sectional area ratio (p/q) before and after 6 crimping of Fig. 3 (b) expression aluminum strand is 0.95 situation.Wherein, p is the sectional area after the aluminum strand crimping, and q is the sectional area before the aluminum strand crimping.
Terminal structure shown in Fig. 4 (a) and Fig. 4 (b), make the sidewall leading section 1c of pressure contact portion 1 imbed aluminum strand 6, the contact area of aluminum strand 6 and pressure contact portion 1 is increased, and then destroy the oxide skin of aluminum strand 6 (aluminium strand 7) by sidewall leading section 1c, and electrical connectivity is improved, Fig. 4 (a) is the structure of expression sectional area ratio 0.7, and Fig. 4 (b) is the structure of expression sectional area ratio 0.95.
In the present invention, the ratio (p/q) of sectional area p after the aluminum strand crimping and the sectional area q before the crimping being defined as 0.7～0.95 reason is, if p/q is than too small, then twist thread (strand) break easily or attenuate, can't fully obtain crimp type terminal and twist thread between bonding strength, in addition, make the work hardening of twisting thread, because the stress relaxation that the cold cycling in using causes increases, contact resistance increases.On the other hand, if p/q is than excessive, then when crimp force excessively a little less than, the oxide skin of aluminum strand is destroyed, thereby initial contact resistance is increased, in addition, make sometimes and twist thread.
In addition, when the oxide thickness on aluminium strand 7 surfaces that constitute aluminum strand is made 20nm when following, compression ratio is in 0.7～0.95 the scope, the bonding strength that can improve crimp type terminal and twist thread, and this is preferred.
Crimp type terminal of the present invention except that the structure that is made of Fig. 1 (a) and a pressure contact portion 1 shown in Figure 2 and linking part 3, can comprise that also the relaying that possesses a plurality of pressure contact portions is with crimp type terminal and the branch crimp type terminal of drawing.And crimp type terminal of the present invention promptly is used in the aluminium single cord beyond the aluminum strand etc., also can obtain the effect same with the situation of aluminum strand.
The crimping aluminum strand of the present invention terminal structure of the aluminum strand of crimp type terminal, preferably, water string or water proofing property molding are implemented on the outside, make the gap of the strand of the coupling part of aluminum strand and terminal and aluminum strand not be detained moisture, to reach the purpose that prevents not corrosion of metals of the same race and the purpose of aluminum strand crevice corrosion.
The invention is not restricted to described execution mode, in the scope that does not break away from aim of the present invention, all can implement.
Crimp type terminal of the present invention, since the groove depth of the comb slot part of its pressure contact portion inner face is carried out according to formation the diameter of aluminium strand of the aluminum strand of crimping carry out specific, therefore, when crimping, the oxide skin on aluminium strand surface can be fully destroyed by described groove, good electrical connectivity can be obtained.In addition, can prevent that aluminum strand from deviating from from pressure contact portion, mechanical connection is also good.Pressure contact portion is constituted with copper or copper alloy, the stress relaxation rate of pressure contact portion can be located at specific scope,, can further improve electrical connectivity by implementing plating.And then the present invention stipulates the tensile strength and the Vickers hardness of crimp type terminal, further shows good electrical connectivity.
The terminal structure of aluminum strand of the present invention because the ratio (p/q) of sectional area p after the aluminum strand crimping and the sectional area q before the crimping is defined in the specific scope, therefore can obtain good electrical connectivity.In addition, the damage of aluminum strand is also little, can obtain sufficient bonding strength.
Below, the present invention will be described in more detail according to embodiment, but the present invention is not limited to this.
Embodiment
(embodiment 1)
The alloy bar (O section bar) of the Cu-30 quality %Zn of thickness 2.0mm is carried out the crimp type terminal of shape shown in the punch process construction drawing 1 (a).The aluminum strand 6 that to remove the aluminium cable 9 terminal crusts 8 shown in Fig. 1 (b) and expose inserts its pressure contact portion 1, then, pushes the two side 1a of pressure contact portion 1 from the outside, and crimping aluminum strand 6 is as the terminal structure of aluminum strand.The length of pressure contact portion 1 (Fig. 1 (a) (C-F)) is 13mm.
To the terminal structure portion of the aluminum strand that obtained, check bonding strength (tensile load) and resistance between aluminum strand and pressure contact portion.
The bonding strength of described crimp type terminal is to carry out tension test by clamping linking part and aluminium cable, obtains the load of aluminum strand when pressure contact portion is extracted, and it is good that described load is that test portion more than the 1.7kN is judged to be mechanical connection.
The resistance of described aluminum strand terminal structure portion is measured before and after cold shock testing, the resistance r of (initial stage) pressure contact portion is below 1.0m Ω before the described test, the resistance s of test back (final period) is below 1.5m Ω, and it is good that the ratio (s/r) of the resistance before and after the described test is judged to be electrical connectivity at the test portion below 10.
Described cold shock testing is to make pressure contact portion alternately be in-40 ℃ low temperature environment down and under+120 ℃ the hot environment, alternately repeats 1000 times.
Resistance is measured by four probe method.Electrical current is more than the 0.1mA.Supply unit use have voltage below the 0.1V, the power supply of the precision of electric current below 0.01A.The voltmeter of voltmeter with the following precision of 0.01mV.
The stress relaxation rate of pressure contact portion is at the surperficial maximum stress 500N/mm that is stretched the JCBA T312:2001 of copper association regulation by Japan
2, measure under 120 ℃, 100 hours the condition.
The stress relaxation rate of the pressure contact portion of this crimp type terminal is 50%.
These tests and measurement result are shown in following table 1.
(embodiment 2)
Make the crimp type terminal except that the alloy bar (H section bar) of the Cu-30 quality %Zn of used thickness 2.3mm, utilize the method identical with embodiment 1, the terminal structure portion of formation aluminum strand carries out test and the mensuration identical with embodiment 1.It is the results are shown in following table 1.
(embodiment 3)
Except that the C5210 alloy bar (H section bar) of used thickness 1.7mm is made crimp type terminal, utilize the method identical with embodiment 1, the terminal structure portion of formation aluminum strand carries out test and the mensuration identical with embodiment 1.It is the results are shown in following table 1.
(embodiment 4)
The stress relaxation rate of making crimp type terminal and establishing pressure contact portion except that the C1020 copper alloy bar (H section bar) of used thickness 2.0mm is outside the situation the setting of described (2), utilize the method identical with embodiment 1, form the terminal structure portion of aluminum strand, carry out test and the mensuration identical with embodiment 1.It is the results are shown in following table 1.
(embodiment 5)
Sectional area ratio (p/q) before and after establishing the crimping of aluminum strand is for outside the situation the setting of described (11), utilizes the method identical with embodiment 1, and the terminal structure portion of formation aluminum strand carries out test and the mensuration identical with embodiment 1.It is the results are shown in following table 1.
(comparative example 1)
Except that the ratio (d/e) of establishing comb groove number of slot part or groove depth d and aluminium strand diameter e for outside the situation the setting of described (1), utilize the method identical with embodiment 1, form the terminal structure portion of aluminum strand, carry out test and the mensuration identical with embodiment 1.It is the results are shown in following table 1.
As can be seen from Table 1, tensile load has all improved in the terminal structure portion of the aluminum strand of example of the present invention (test portion No.1～12), has reduced resistance.That is, mechanical connection and electrical connectivity are good.The stress relaxation rate that particularly satisfies pressure contact portion is that the described connectivity of test portion (test portion No.1～9) of 0.7～0.95 condition is fabulous at the sectional area ratio (p/q) below 70%, before and after the aluminum strand crimping.
Relative therewith, the groove number of the test portion No.13 of comparative example 1 is few, and the groove depth of test portion No.14 and aluminium strand diameter ratio (d/e) are little, and therefore, mechanical connection and electrical connectivity are all inferior.
(embodiment 6)
Except that the alloy bar that uses the plating Sn layer that implements thickness 0.5 μ m, 1.2 μ m, 18 μ m, 24 μ m, utilize with embodiment 1 identical materials, method and make the aluminium crimp type terminal, form the terminal structure portion (test portion No.15～18) of aluminum strand similarly to Example 1, carry out test and the mensuration identical with embodiment 1.
In addition, be 3 at the groove number of comb slot part, groove depth is 0.11mm, when groove width is 1mm, the sectional area ratio of establishing before and after the crimping is 0.95.In addition, the intensity of the fluorescent x-ray of parallel light tube diameter 0.1mm is carried out 5 mensuration, obtain plating Sn layer thickness by its mean value.
With the following table 2 of the results are shown in of gained.In addition, as a reference, be that the test portion No.5 of 0.95 embodiment 1 charges to table 2 with the sectional area ratio before and after the crimping.
Table 2
As can be seen from Table 2, plating Sn layer more than 1.0, the terminal structure portion of the aluminum strand of the following scope of 20 μ m, its resistance is all low.In addition, the tensile strength of test portion No.15～18 all is 2.4kN, and is identical with the situation (test portion No.5) of no coating.That is, mechanical connection and electrical connectivity are good.
(embodiment 7)
Except the tensile strength (TS) and the Vickers hardness (Hv) that make crimp type terminal are carried out the various variations, utilize the method identical with embodiment 1, the terminal structure portion (test portion No.19～20) of formation aluminum strand carries out test and the mensuration identical with embodiment 1.Groove number at the comb slot part is 3, groove depth is 0.11mm, when groove width is 1mm, the sectional area ratio of establishing before and after the crimping is 0.95.
In addition, the web of the tensile strength of crimp type terminal before by punch process made the test film of JIS Z2201 defined, according to the test method of JIS Z2241 defined.In addition, Vickers hardness test is according to JISZ2244.
With the following table 3 of the results are shown in of gained.
Table 3
As can be seen from Table 3, all test portions (No.19,20) all satisfy preferred regulation resistance, the tensile strength of terminal material more than the 400MPa, Vickers hardness more than 90, tensile strength when Vickers hardness than (terminal/aluminium strand) under the situation more than 2 times, the terminal structure portion resistance of aluminum strand is low, and is also stable after the deterioration test.In addition, test portion No.19,20 tensile strength all are 2.4kN.
(embodiment 8)
Except the oxide thickness of the aluminium strand of the aluminum strand that will constitute crimping is made thickness 5nm, 20nm, the 25nm, utilize the method identical with embodiment 1, form the terminal structure portion (test portion No.21～23) of aluminum strand, carry out test and the investigation identical with embodiment 1.Groove number at the comb slot part is 3, groove depth is 0.11mm, when groove width is 1mm, the sectional area ratio of establishing before and after the crimping is 0.95.The thickness of oxide-film is controlled by the heat treated of aluminum strand in atmosphere.
In addition, for the oxide-film on aluminium strand surface, be that the zone, four directions of 10 μ m is measured with the auger electrons optical spectroscopy.With argon-ion gun from the aluminum strand surface in ten minutes the SiO of sputter thickness 100nm
2, and carry out spectrum analysis at every turn, reach 1/2nd the most surperficial sputtering times that spent according to the quality % of oxygen, use Al
2O
3Sputtering rate 4nm/ branch, obtain the thickness of oxide-film by calculating.
With the following table 4 of the results are shown in of gained.
Table 4
As can be seen from Table 4, all test portions (test portion No.21～22) all satisfy preferred regulation resistance, and under the oxide-film of aluminium strand was situation below the 20nm, the terminal structure portion resistance of aluminum strand is low, and was also stable after the deterioration test.In addition, the tensile strength of all test portions (test portion No.21～22) all is 2.4kN.
Aluminum strand of the present invention is good with the electrical connectivity and the mechanical connection of crimp type terminal, can be suitable for use in the crimp type terminal that is electrically connected the automobile-use electrical harness that uses aluminum strand and storage battery cable etc. etc.
Though the present invention is illustrated with its execution mode, but do not having under the specially appointed situation, more than Shuo Ming any details does not limit the present invention, in not breaking away from technical scheme scope expressed invention aim and scope, should be able to explain widely.
The application is willing to 2005-338604 and on October 27th, 2006 be willing to that the spy that Japan carries out patent application 2006-293215 advocates priority according to the spy who carried out patent application in Japan on November 24th, 2005, these all this with reference to and its content taken in as the part of this specification record.
Claims (12)
1, a kind of aluminum strand crimp type terminal, it is provided with the comb slot part at the pressure contact portion inner face, it is characterized in that,
The groove depth d that constitutes described comb slot part is more than 0.33 with the ratio (d/e) of the diameter e of the aluminium strand that constitutes described aluminum strand, and described groove number is more than 3.
2, aluminum strand crimp type terminal as claimed in claim 1 is characterized in that,
Described pressure contact portion is made of copper or copper alloy, and the stress relaxation rate of described pressure contact portion is below 70%.
3, aluminum strand crimp type terminal as claimed in claim 1 or 2 is characterized in that,
Described aluminum strand crimp type terminal is the following brass of crystal grain 50 μ m.
4, as each described aluminum strand crimp type terminal in the claim 1～3, it is characterized in that,
Described aluminum strand is more than the 25%IACS with the conductance of crimp type terminal.
5, as each described aluminum strand crimp type terminal in the claim 1～4, it is characterized in that,
Described aluminum strand is that 400MPa is above, Vickers hardness is 90N/mm with the tensile strength of crimp type terminal
2More than.
6, as each described aluminum strand crimp type terminal in the claim 1～5, it is characterized in that,
Described aluminum strand is more than 2 times of tensile strength that constitute the strand of aluminum strand with the tensile strength of crimp type terminal, and Vickers hardness is more than 2 times of strand hardness that constitute aluminum strand.
7, as each described aluminum strand crimp type terminal in the claim 1～6, it is characterized in that,
Described aluminum strand with the surface of crimp type terminal impose more than the 1 μ m, the plating Sn layer or the plating layer of the following thickness of 20 μ m.
8, aluminum strand crimp type terminal as claimed in claim 7 is characterized in that,
Described plating Sn layer has the pure Sn layer of the above thickness of 0.2 μ m.
9, as claim 7 or 8 described aluminum strand crimp type terminals, it is characterized in that,
Implement plating Cu layer or plating Ni layer as described aluminum strand with the plating Sn layer of crimp type terminal or the prime coat of plating layer.
10, as each described aluminum strand crimp type terminal in the claim 7～9, it is characterized in that,
Implement plating Cu layer as described aluminum strand with the prime coat of the plating Sn layer of crimp type terminal, and then, plating Ni layer implemented as its prime coat.
11, a kind of terminal structure of aluminum strand, it is the terminal structure that is crimped with the aluminum strand of each described aluminum strand usefulness crimp type terminal in the claim 1～10, it is characterized in that,
The ratio (p/q) of sectional area q before sectional area p after the described aluminum strand crimping and the crimping is 0.7～0.95.
12, the terminal structure of aluminum strand as claimed in claim 11 is characterized in that,
The oxide thickness that constitutes the aluminium strand of described aluminum strand is below the 20nm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005338604 | 2005-11-24 | ||
| JP338604/2005 | 2005-11-24 | ||
| JP293215/2006 | 2006-10-27 |
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| CN101317301A true CN101317301A (en) | 2008-12-03 |
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|---|---|---|---|
| CNA2006800441559A Pending CN101317301A (en) | 2005-11-24 | 2006-11-21 | Crimp-style terminal for aluminum strand and terminal structure of aluminum strand having the crimp-style terminal connected thereto |
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| CN102782941A (en) * | 2010-04-13 | 2012-11-14 | 矢崎总业株式会社 | Inspection method of conductor crimping portion of crimping terminal |
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| CN103401082A (en) * | 2013-08-05 | 2013-11-20 | 徐晟伟 | Crimping terminal |
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| CN105191020A (en) * | 2013-03-19 | 2015-12-23 | 矢崎总业株式会社 | Crimp terminal and crimping structure for wire in crimp terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859935A (en) * | 2009-04-06 | 2010-10-13 | 株式会社田村制作所 | Aluminum wire connection terminal |
| CN102782941A (en) * | 2010-04-13 | 2012-11-14 | 矢崎总业株式会社 | Inspection method of conductor crimping portion of crimping terminal |
| CN102782941B (en) * | 2010-04-13 | 2015-07-29 | 矢崎总业株式会社 | For checking the method in the conductor crimping portion of crimp type terminal |
| WO2013033978A1 (en) * | 2011-09-09 | 2013-03-14 | 泰科电子(上海)有限公司 | Wire crimp-on terminal |
| CN103001019A (en) * | 2011-09-09 | 2013-03-27 | 泰科电子(上海)有限公司 | Wire crimping terminal |
| CN103001019B (en) * | 2011-09-09 | 2016-06-01 | 泰科电子(上海)有限公司 | Crimping terminal of wire |
| CN105191020A (en) * | 2013-03-19 | 2015-12-23 | 矢崎总业株式会社 | Crimp terminal and crimping structure for wire in crimp terminal |
| CN104781432A (en) * | 2013-03-29 | 2015-07-15 | 古河电器工业株式会社 | Aluminum alloy conductor, aluminum alloy stranded wire, sheathed wire, wire harness, and method for manufacturing aluminum alloy conductor |
| US9773580B2 (en) | 2013-03-29 | 2017-09-26 | Furukawa Electric Co., Ltd. | Aluminum alloy wire rod, aluminum alloy stranded wire, coated wire, wire harness and manufacturing method of aluminum alloy wire rod |
| CN103401082A (en) * | 2013-08-05 | 2013-11-20 | 徐晟伟 | Crimping terminal |
| CN109196722A (en) * | 2016-04-25 | 2019-01-11 | Erni制造有限两合公司 | Contact sleeve |
| US10566707B2 (en) | 2016-04-25 | 2020-02-18 | Erni Production Gmbh & Co. Kg | Electrical crimp contact |
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