EP3611800A1 - Terminal-equipped electric wire - Google Patents
Terminal-equipped electric wire Download PDFInfo
- Publication number
- EP3611800A1 EP3611800A1 EP19190819.3A EP19190819A EP3611800A1 EP 3611800 A1 EP3611800 A1 EP 3611800A1 EP 19190819 A EP19190819 A EP 19190819A EP 3611800 A1 EP3611800 A1 EP 3611800A1
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- Prior art keywords
- terminal
- compression
- conductor
- mass
- electric wire
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
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- 0 CCCC(C*)N Chemical compound CCCC(C*)N 0.000 description 1
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
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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
- 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
- H01R4/58—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 characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
Abstract
Description
- The present application claims the benefit of Japanese Patent Application No.
2018-152300 filed on August 13, 2018 - The present disclosure relates to a terminal-equipped electric wire.
- A conventionally known terminal-equipped electric wire has a configuration below. The terminal-equipped electric wire includes an electric wire and a compression terminal. The electric wire includes a conductor and a covering. The conductor is formed of, for example, an element wire. The element wire is also referred to as a "single wire". Alternatively, the conductor is, for example, a strand formed of multiple element wires twisted together. The covering covers an outer periphery of the conductor. At an end of the electric wire, the covering is removed, and the conductor is exposed. By inserting the exposed conductor into the compression terminal and then externally compressing the compression terminal, the compression terminal is fixed to the electric wire. Such a terminal-equipped electric wire is disclosed, for example, in Japanese Unexamined Patent Application Publication No.
2010-244895 - A ratio of an electrical resistance value in a contact portion of the compression terminal to an electrical resistance value of the electric wire is referred to as an "electrical resistance ratio". The electrical resistance ratio of the terminal-equipped electric wire is required to be further reduced. One aspect of the present disclosure is to provide a terminal-equipped electric wire that enables a reduced electrical resistance ratio.
- A terminal-equipped electric wire in one aspect of the present disclosure comprises: an electric wire that comprises a conductor formed of at least one element wire, a covering that covers an outer periphery of the conductor; and a compression terminal fixed to an end of the conductor. The at least one element wire is made of a first material comprising aluminum as a main component, and at least a part, which contacts the conductor, of the compression terminal is made of a second material comprising aluminum as a main component. The first material has a tensile strength greater than a tensile strength of the second material. The terminal-equipped electric wire in one aspect of the present disclosure has a small electrical resistance ratio. Also, the terminal-equipped electric wire in one aspect of the present disclosure has a small contact resistance between the conductor and the compression terminal.
- An embodiment of the present disclosure will be described hereinafter by way of example with reference to the accompanying drawings, in which:
-
FIG. 1 is a perspective view showing a configuration of a terminal-equippedelectric wire 1 in a state where aconductor 3 and acompression terminal 5 are separated; -
FIG. 2 is a sectional view showing a section of the terminal-equippedelectric wire 1 before compression taken along a section parallel to an axial direction of theconductor 3; -
FIG. 3 is a sectional view showing a section of the terminal-equippedelectric wire 1 after compression taken along the section parallel to the axial direction of theconductor 3; -
FIG. 4 is a graph showing changes in compression strain and compression load of the conductor and the compression terminal while applying a compression load during production from an outer periphery of the compression terminal, and subsequently removing the compression load during production, in a case where a first material has a tensile strength greater than a tensile strength of a second material. -
FIG. 5 is a graph showing changes in compression strain and compression load of the conductor and the compression terminal while applying a compression load during production from an outer periphery of the compression terminal, and subsequently removing the compression load during production, in a case where the first material has a tensile strength smaller than a tensile strength of the second material; -
FIG. 6 is an explanatory diagram showing a measurement method of an initial resistance ratio Rratio; and -
FIG. 7 is a graph showing a relationship between a tensile strength difference and the initial resistance ratio Rratio. - A terminal-equipped electric wire of the present disclosure comprises an electric wire and a compression terminal. The electric wire comprises a conductor and a covering. The conductor is formed of, for example, an element wire. The element wire is also referred to as a "single wire". Alternatively, the conductor may be, for example, a strand formed of multiple element wires twisted together. In a case where the conductor is formed of a strand, the element wires forming the strand are usually made of a same material.
- The covering covers an outer periphery of the conductor. The covering is made of an insulating material, such as resin and rubber. At an end of the electric wire, the covering is partially removed, thereby exposing the conductor. Hereinafter, such an exposed conductor is referred to as an "exposed portion". The compression terminal is fixed to the exposed portion.
- The terminal-equipped electric wire has a configuration, for example, as shown in
FIGS. 1 ,2 , and3 . Specifically, a terminal-equippedelectric wire 1 comprises anelectric wire 2 and acompression terminal 5. Theelectric wire 2 comprises aconductor 3 and a covering 4. The covering 4 covers an outer periphery of theconductor 3. At an end of theelectric wire 2, the covering 4 is removed, and theconductor 3 is exposed. Theconductor 3 shown inFIGS. 1 ,2 , and3 corresponds to the exposed portion. - The
compression terminal 5 comprises acontact portion 7 and an extendingportion 9. Thecompression terminal 5 is obtained, for example, by press-working one end of a pipe. The one end corresponds to the extendingportion 9. Alternatively, thecompression terminal 5 may be obtained, for example, by drilling a first end of a columnar base material, and press-working a second end thereof. The first end corresponds to thecontact portion 7. The second end corresponds to the extendingportion 9. - The
contact portion 7 has a cylindrical shape with one open end. The extendingportion 9 is connected to an end of thecontact portion 7 opposite to the open end. The extendingportion 9 has a plate shape to allow attachment to a not-shown terminal base. The extendingportion 9 has abolt hole 11 to allow a not-shown bolt to pass therethrough. - The terminal-equipped
electric wire 1 is produced, for example, as described below. First, as shown inFIG. 2 , an exposed end of theconductor 3 is inserted into thecontact portion 7. Subsequently, a compression load is applied to thecontact portion 7 from an outer periphery of thecontact portion 7, to thereby compress thecontact portion 7 and theconductor 3. The compression load is referred to as a "compression load during production". A direction of the compression load during production is a direction to radially contract thecontact portion 7 and theconductor 3. Then, the compression load during production is removed, and a finished terminal-equippedelectric wire 1 shown inFIG. 3 is obtained. In the finished terminal-equippedelectric wire 1, an inner peripheral surface of thecontact portion 7 contacts an outer peripheral surface of theconductor 3. - In the aforementioned compression process, a specified pressure is applied to the
contact portion 7, for example, using a compression tool to cause compression deformation of thecontact portion 7. The compression deformation is plastic deformation. It is preferable to cause compression deformation at multiple points. In a case of compression deformation at multiple points, improved properties of the terminal-equipped electric wire can be obtained. The multiple points for compression are preferably specified to be spaced apart from one another along a longitudinal direction of theconductor 3. - The element wires forming the
conductor 3 are made of a first material comprising aluminum as a main component. The main component means a component that accounts for 50% or more by mass of the entire mass. At least a part of the compression terminal that contacts the exposed portion of theconductor 3 is made of a second material comprising aluminum as a main component. In an embodiment shown inFIGS. 1 ,2 , and3 , thecontact portion 7 is made of the second material. - Either the first material or the second material is not limited to a particular material, and may be, for example, pure aluminum or aluminum alloys as described below.
- Pure aluminum is a material comprising Al and inevitable impurities. Examples of pure aluminum include electrically conductive pure aluminum (hereinafter also referred to as "ECA1").
- Examples of aluminum alloys include Al-Fe-Zr and Al-Zr detailed below.
- Al-Fe-Zr: an aluminum alloy comprising 0.2 to 1.0% by mass of Fe (iron), 0.01 to 0.10% by mass of Zr (zirconium), 0.1% by mass or less of Si (silicon), 0.01% by mass or less of Cu (copper), 0.01% by mass or less of Mn (manganese), 0.01% by mass or less of Mg (magnesium), 0.01% by mass or less of Zn (zinc), 0.01% by mass or less of Ti (titanium), and 0.01% by mass or less of V (vanadium), with the remainder comprising Al and inevitable impurities.
- Al-Zr: an aluminum alloy comprising 0.03 to 1.5% by mass of Zr and 0.1 to 1.0% by mass of Fe and Si, with the remainder comprising Al and inevitable impurities.
- Regarding Al-Zr, "0.1 to 1.0% by mass of Fe and Si" means the following: In a case of comprising both of Fe and Si, a summed concentration of Fe and Si is 0.1 to 1.0% by mass. In a case of comprising Fe and not comprising Si, Fe concentration is 0.1 to 1.0% by mass. In a case of comprising Si and not comprising Fe, Si concentration is 0.1 to 1.0% by mass.
- The first material has a tensile strength greater than a tensile strength of the second material. A measurement method of the tensile strength of the first material is as described below. A test piece is cut from the element wire forming the conductor. A tensile test on the test piece is conducted by a method according to Japanese Industrial Standards (JIS) Z2241, to thereby measure a tensile strength. The tensile test is conducted with a test speed of 10%/min and a gauge length of 200 mm.
- A measurement method of the tensile strength of the second material is as described below. A test piece of a 2 mm by 2 mm square rod is cut from a part, which contacts the exposed portion, of the compression terminal. A tensile test on the test piece is conducted by a method according to JIS Z2241, to thereby measure a tensile strength. The tensile test is conducted with a test speed of 10%/min and a gauge length of 20 mm.
- In a case where the
conductor 3 is formed of a strand, multiple element wires are preferably made of a same material. Theconductor 3 is, for example, formed of a complex strand. The complex strand is formed by preparing a collective strand by twisting multiple metal element wires, and then twisting multiple collective strands together. In a case where theconductor 3 is made of a complex strand, the tensile strength of the metal element wires forming theconductor 3 is equal to the tensile strength of theconductor 3, and the tensile strength of the collective strand. - A section area of a portion, to which the compression terminal is fixed, of the
conductor 3 is defined as S1. Compression deformation has occurred in the portion to which the compression terminal is fixed. A section area of a portion, to which the compression terminal is not fixed, of theconductor 3 is defined as S2. Compression deformation has not occurred in the portion to which the compression terminal is not fixed. S1/S2 is preferably 0.5 or more and less than or equal to 0.95. When S1/S2 is within such range, the compression terminal holds the conductor with a greater holding force. - The terminal-equipped electric wire of the present disclosure may be used, for example, for buildings, wind power generations, railroads, and vehicles.
- The terminal-equipped electric wire of the present disclosure has a small contact resistance between the conductor and the compression terminal. In the terminal-equipped electric wire of the present disclosure, an initial resistance ratio of the conductor is particularly small. The initial resistance ratio means an electrical resistance ratio immediately after production of the terminal-equipped electric wire.
- The terminal-equipped electric wire preferably has an electrical resistance ratio of 100% or less. Also, the contact resistance between the conductor and the compression terminal is preferably further small. The terminal-equipped electric wire of the present disclosure allows reduction in the electrical resistance ratio. This enables reduction in local overheat in a joint between the conductor and the compression terminal. As a result, disconnection of the electric wire and contact failure between the conductor and the compression terminal can be inhibited.
- The reason for the small electrical resistance ratio in the terminal-equipped electric wire of the present disclosure is assumed as described below.
FIG. 4 is a graph showing changes in compression strain and compression load of each of the conductor and the compression terminal in a case where the tensile strength of the first material is greater than the tensile strength of the second material, and where the compression load during production is applied to the compression terminal from its outer periphery, and subsequently the compression load during production is removed. - In
FIG. 4 , XI is a curve showing changes in compression strain and compression load of the conductor in a case where the tensile strength of the first material is greater than the tensile strength of the second material, and where the compression load during production is applied to the compression terminal from its outer periphery, and subsequently the compression load during production is removed. A point A represents the compression strain and the compression load of the conductor when the compression load during production is completely removed. - In
FIG. 4 , Y1 is a curve showing changes in compression strain and compression load of the compression terminal in a case where the tensile strength of the first material is greater than the tensile strength of the second material, and where the compression load during production is applied to the compression terminal from its outer periphery, and subsequently the compression load during production is removed. A point B represents the compression strain and the compression load of the compression terminal when the compression load during production is completely removed. - The compression strain at the point A and the compression strain at the point B are equal. The compression strain at each of the point A and the point B is an amount of strain when springback occurs. Also, the compression load at the point A is equal in magnitude to the tensile load at the point B.
- When the compression load during production is applied, the compression terminal and the conductor are compressed. After completely removing the compression load during production, springback occurs in the compression terminal and the conductor in accordance with an initial Young's modulus. Since the tensile strength of the first material forming the conductor is greater than the tensile strength of the second material forming a contact portion of the compression terminal, a springback amount of the conductor is greater than a springback amount of the contact portion. Thus, the compression load at the point A occurs in the conductor. The compression load occurring in the conductor is a force pressing the compression terminal in a radial direction of the conductor. The tensile load occurs in the compression terminal. The tensile load balances with the compression load occurring in the conductor. Accordingly, after the compression load during production is completely removed, a mutual pressing load occurs between the outer peripheral surface of the conductor and the inner peripheral surface of compression terminal.
- An electrical resistance Rc at a contact between metals is expressed by following Formula (1):
- As described above, in a case where the tensile strength of the first material is greater than the tensile strength of the second material, a mutual pressing load occurs between the outer peripheral surface of the conductor and the inner peripheral surface of compression terminal; thus, "F" is large. As a result, the electrical resistance Rc is small. Accordingly, the terminal-equipped electric wire of the present disclosure can achieve a small electrical resistance ratio.
-
FIG. 5 is a graph showing changes in compression strain and compression load of each of the conductor and the compression terminal in a case where the tensile strength of the first material is smaller than the tensile strength of the second material, and where the compression load during production is applied to the compression terminal from its outer periphery, and subsequently the compression load during production is removed. - In
FIG. 5 , X2 is a curve showing changes in compression strain and compression load of the conductor in a case where the tensile strength of the first material is smaller than the tensile strength of the second material, and where the compression load during production is applied to the compression terminal from its outer periphery, and subsequently the compression load during production is removed. A point C represents the compression strain and the compression load of the conductor when the compression load during production is completely removed. - In
FIG. 5 , Y2 is a curve showing changes in compression strain and compression load of the compression terminal in a case where the tensile strength of the first material is smaller than the tensile strength of the second material, and where the compression load during production is applied to the compression terminal from its outer periphery, and subsequently the compression load during production is removed. A point D represents the compression strain and the compression load of the compression terminal when the compression load during production is completely removed. - When the compression load during production is applied, the compression terminal and the conductor are compressed. After completely removing the compression load during production, springback occurs in the compression terminal and the conductor in accordance with an initial Young's modulus. Since the tensile strength of the second material forming the contact portion of compression terminal is greater than the tensile strength of the first material forming the conductor, no interacting force occurs between the compression terminal and the conductor.
- The compression strain at the point C is greater than the compression strain at the point D. As a result, when the compression load during production is completely removed, a gap due to springback is formed between the outer peripheral surface of the conductor and the inner peripheral surface of the compression terminal. Thus, when the compression load during production is completely removed, no mutual pressing load occurs between the outer peripheral surface of the conductor and the inner peripheral surface of the compression terminal.
- Accordingly, in a case where the tensile strength of the first material is smaller than the tensile strength of the second material, "F" in Formula (2) is small and the electrical resistance Rc is large.
- As a difference between the tensile strength of the first material and the tensile strength of the second material is greater, the contact resistance between the conductor and the compression terminal becomes smaller, and the electrical resistance ratio becomes smaller. The difference between the tensile strength of the first material and the tensile strength of the second material is preferably 20 MPa or more, and more preferably 30 MPa or more.
- In a case where the difference between the tensile strength of the first material and the tensile strength of the second material is 20 MPa or more, changes in resistance ratio is small as compared with a case of less than 20 MPa in a 150°C current conduction test. The 150°C current conduction test is a test in which a current is set to heat a sample to 150°C, and the current is conducted for 50 hours.
- Terminal-equipped electric wires No.1 to No. 6 in Table 1 were produced. Each of the terminal-equipped electric wires had a configuration as shown in
FIG. 1 andFIG. 2 . Each of the terminal-equipped electric wires had a combination of the first material and the second material as shown in Table 1. Except for the combination of the first material and the second material, all the terminal-equipped electric wires were the same. In each of the terminal-equipped electric wires, all the element wires forming the conductor were made of a same material. In each of the terminal-equipped electric wires, the conductor had a section area of 200 mm2. The element wires forming the conductor each had a diameter of 0.45 mm. The number of element wires was 1,258. - Materials used for the first material and the second material are detailed below.
- ECA1: ECA1 in accordance with Japanese Industrial Standards (JIS) A1070 was used.
- Al-Fe-Zr: Aluminum alloy comprising 0.6% by mass of Fe, 0.02% by mass of Zr, 0.06% by mass of Si, 0.002% by mass of Cu, 0.002% by mass of Mn, and a total 0.006% by mass of Ti and V, and the remainder of Al.
- Al-Zr: Aluminum alloy comprising 0.34% by mass of Zr, 0.15% by mass of Fe, 0.1% by mass of Si, and a total 0.03% by mass of Ti and V, and the remainder of Al.
[Table 1] No. Second Material First Material Tensile Strength Difference (MPa) Initial Resistance Ratio (%) 1 ECAL Al-Fe-Zr -46 73 2 ECAL Al-Zr -24 76 3 Al-Fe-Zr Al-Fe-Zr -33 74 4 Al-Fe-Zr Al-Zr -11 87 5 Al-Zr Al-Fe-Zr 60 118 6 Al-Zr Al-Zr 82 142 - For each of the terminal-equipped electric wires, the tensile strength of the first material and the tensile strength of the second material were measured. The measurement method was as described above. A tensile tester produced by ORIENTEC Co., Ltd. was used for measuring the tensile strengths. Next, a value was calculated by subtracting the tensile strength of the first material from the tensile strength of the second material (hereinafter referred to as a "tensile strength difference"). Table 1 above shows the calculated tensile strength differences.
- For each of the terminal-equipped electric wires, an initial resistance ratio was measured. A measurement method of the initial resistance ratio was in accordance with JIS C2805. Specifically, measurement of the initial resistance ratio was conducted by a four-terminal method.
FIG. 6 shows a test specimen used for measurement of the initial resistance ratio. - The test specimen comprises the
conductor 3 prepared by removing the covering from theelectric wire 2, and thecompression terminals 5 fixed to both ends of theconductor 3. - A constant current 1A was supplied to the entire test specimen. In this state, a resistance R between a point P and a point Q was measured. The point P was a position of a top end of the contact portion between the
conductor 3 and thecompression terminal 5. The point Q was a position of theconductor 3 at which theconductor 3 did not contact thecompression terminal 5. A point S was at an end, opposite to the point P, of the contact portion between theconductor 3 and thecompression terminal 5. A resistance meter produced by HIOKI E.E. CORPORATION was used for measuring resistance. - An initial resistance ratio Rratio was calculated by following Formula (3):
conductor 3. Here, "α" is a given value and may be, for example, measured in advance. Alternatively, "α" may be calculated by measuring a resistance in L2, and dividing the measured resistance by the length of L2. - Table 1 above shows the calculated initial resistance ratio Rratio.
FIG. 7 shows relationships between the tensile strength difference and the initial resistance ratio Rratio. InFIG. 7 , "ECA1 terminal" means that the second material is ECA1. "Al-Fe-Zr terminal" means that the second material is Al-Fe-Zr. "Al-Zr terminal" means that the second material is Al-Zr. - As shown in
FIG. 7 , when the tensile strength difference was a negative value, the initial resistance ratio was smaller than when the tensile strength difference was a positive value. Also, in comparison between two terminal-equipped electric wires, each having a tensile strength difference of a negative value, the initial resistance ratio was smaller as an absolute value of the tensile strength difference was larger. - Although one embodiment of the present disclosure has been described above, it is to be understood that the present disclosure is not limited to the above-described embodiment, but may be implemented in various forms.
- (1) A function performed by a single element in the above-described embodiment may be achieved by a plurality of elements, or a function performed by a plurality of elements may be achieved by a single element. Also, a part of a configuration in the above-described embodiment may be omitted. Further, at least a part of a configuration in the above-described embodiment may be added to, or may replace, a configuration in another embodiment. Any form included in the technical idea defined only by the language of the appended claims may be an embodiment of the present disclosure.
- (2) The present disclosure may be implemented, other than in the above-described terminal-equipped electric wire, in various forms, such as a system comprising the terminal-equipped electric wire, a manufacturing method of a terminal-equipped electric wire, and a method of fixing a compression terminal to an electric wire.
Claims (5)
- A terminal-equipped electric wire (1) comprising:an electric wire (2) that comprises:a conductor (3) formed of at least one element wire, anda covering (4) that covers an outer periphery of the conductor; and a compression terminal (5) fixed to an end of the conductor,wherein the at least one element wire is made of a first material comprising aluminum as a main component,wherein at least a part, which contacts the conductor, of the compression terminal is made of a second material comprising aluminum as a main component, andwherein the first material has a tensile strength greater than a tensile strength of the second material.
- The terminal-equipped electric wire according to claim 1,
wherein the first material is an aluminum alloy that comprises:0.2 to 1.0% by mass of Fe;0.01 to 0.10% by mass of Zr;0.1% by mass or less of Si;0.01% by mass or less of Cu;0.01% by mass or less of Mn;0.01% by mass or less of Mg;0.01% by mass or less of Zn;0.01% by mass or less of Ti;0.01% by mass or less of V; anda remainder comprising Al and inevitable impurities, and
wherein the second material is pure aluminum that comprises Al and inevitable impurities. - The terminal-equipped electric wire according to claim 1,
wherein the first material is an aluminum alloy that comprises:0.03 to 1.5% by mass of Zr;0.1 to 1.0% by mass of Fe and Si; anda remainder comprising Al and inevitable impurities, and
wherein the second material is pure aluminum that comprises Al and inevitable impurities. - The terminal-equipped electric wire according to claim 1,
wherein the first material and the second material each comprise:0.2 to 1.0% by mass of Fe;0.01 to 0.10% by mass of Zr;0.1% by mass or less of Si;0.01% by mass or less of Cu;0.01% by mass or less of Mn;0.01% by mass or less of Mg;0.01% by mass or less of Zn;0.01% by mass or less of Ti;0.01% by mass or less of V; anda remainder comprising Al and inevitable impurities. - The terminal-equipped electric wire according to any one of claims 1 to 4,
wherein the tensile strength of the first material is greater than the tensile strength of the second material by 20 MPa or more.
Applications Claiming Priority (1)
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JP2018152300A JP7228087B2 (en) | 2018-08-13 | 2018-08-13 | Wire with terminal |
Publications (2)
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EP3611800A1 true EP3611800A1 (en) | 2020-02-19 |
EP3611800B1 EP3611800B1 (en) | 2022-02-16 |
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EP19190819.3A Active EP3611800B1 (en) | 2018-08-13 | 2019-08-08 | Terminal-equipped electric wire |
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EP (1) | EP3611800B1 (en) |
JP (1) | JP7228087B2 (en) |
CN (1) | CN110829042B (en) |
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JP7380459B2 (en) | 2020-07-13 | 2023-11-15 | 株式会社プロテリアル | Electric wire with terminal |
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JP7125701B2 (en) * | 2017-09-22 | 2022-08-25 | 矢崎総業株式会社 | Wire with terminal |
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Also Published As
Publication number | Publication date |
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JP7228087B2 (en) | 2023-02-24 |
CN110829042A (en) | 2020-02-21 |
EP3611800B1 (en) | 2022-02-16 |
CN110829042B (en) | 2023-06-30 |
JP2020027758A (en) | 2020-02-20 |
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