CN104852168A - Terminal and wire connecting structure of the terminal - Google Patents
Terminal and wire connecting structure of the terminal Download PDFInfo
- Publication number
- CN104852168A CN104852168A CN201510075878.6A CN201510075878A CN104852168A CN 104852168 A CN104852168 A CN 104852168A CN 201510075878 A CN201510075878 A CN 201510075878A CN 104852168 A CN104852168 A CN 104852168A
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- terminal
- electric wire
- substrate
- heart yearn
- insulating wrapped
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a terminal which can be simply connected with a wire. The terminal has an electric contact part arranged on the front side along the length direction of a substrate composed of conducting metal plates. The terminal further has a wire connecting part arranged on the rear side. The terminal has a following structure that the wire connecting part has a flat-shaped substrate; a cylinder is arranged in a way to not protrude from the two sides along the width direction of the substrate; the front upper surface of the substrate serves as a core wire welding part; an insertion recess is arranged on at least one side surface along the width direction on the rear part of the substrate; and a fastening belt inserted from the insertion recess makes the insulating coating of the wire fastened on the substrate.
Description
Technical field
The present invention relates to the electric wire connecting structure of terminal and this terminal, be especially suitable as the terminal be connected in the cotton electric wire of vehicle, aluminium electric wire with distribution and use.
Background technology
At present, as shown in Figure 6, the terminal 100 be made up of copper system metallic plate being connected to wire terminations possesses wired portion 101 continuously in length direction side, possesses electrical contacts 102 continuously at opposite side.Wired portion 101 is provided with insulating wrapped cylindrical shell 103 and heart yearn cylindrical shell 104, and the male of electrical contacts 102 as the chip shape of illustrated writing board shape or female end of box shaped.Heart yearn 201 riveted joint utilizing heart yearn cylindrical shell 104 to be exposed by the end at electric wire 200 is crimped on this terminal 100, and rivets crimping insulating coating 202 with insulating wrapped cylindrical shell 103.
On the other hand, a kind of terminal is provided in Japanese Unexamined Patent Publication 2003-338327 publication, as shown in Fig. 7 (A) ~ (C), the heart yearn 201 of electric wire 200 is being placed on the weld part 301 clamped with the cylindrical shell 302 of terminal 300, welded by upper and lower ultrasonic electrode 310A, 310B, afterwards, both sides cylindrical shell 302 riveted joint is crimped on weld part, and rivets crimping insulating coating 202 with insulating wrapped cylindrical shell 303.It is to protect weld part by cylindrical shell 302 that the terminal of the heart yearn welding electric wire is riveted crimping with cylindrical shell 302, insulating wrapped cylindrical shell 303 further, and utilizes insulating wrapped cylindrical shell 303 to prevent heart yearn 201 from being peeled off from weld part 301 by from direction load up and down in the power of electric wire 200.
If crimp this two kinds of diverse ways splicing ears and electric wire by the riveted joint of this ultrasonic bonding and cylindrical shell, then reliability of electrical connection can be improved.Therefore, being especially preferably used in heart yearn is the copper electric wire be made up of copper system metal, and core section area is 8mm
2the connection of above cotton electric wire or the core line diameter aluminium electric wire that aluminum-based metal be made up of larger than copper electric wire and terminal.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2003-338327 publication
Invent problem to be solved
In the terminal of the above-mentioned riveted joint crimping carrying out ultrasonic bonding and cylindrical shell of patent documentation 1, although can reliability of electrical connection be improved, need the heart yearn of electric wire and the welding sequence of terminal soldering and the crimping process cylindrical shell of terminal being riveted on electric wire by ultrasonic bonding.Therefore, after being welded by welder, need to be carried to two operations that compression bonding apparatus carries out crimping, the electric wire of terminal connects and expends the activity duration, and also there is the problem expending equipment cost.
Summary of the invention
The present invention makes to solve the problem, and its problem is, provides a kind of and carries out the terminal of the connection operation of terminal and electric wire and the electric wire connecting structure of this terminal simply.
For solving the technical scheme of problem
For solving above-mentioned problem, the invention provides a kind of terminal, arranging electrical contacts, arranging wired portion at rear side, it is characterized in that in the front side of the length direction of the substrate be made up of conductive metal plate, described terminal is formed as following structure:
Described wired portion possesses the substrate of writing board shape, not from the projecting cylindrical shell in Width both sides of this substrate, using the front upper surface of this substrate as heart yearn weld part, and at least one side of the Width at the rear portion of this substrate is provided with band insertion recess, utilizes the restraint zone inserted to this band insertion recess that the insulating wrapped of electric wire is anchored on described substrate.
In the present invention, the heart yearn of electric wire is fixedly welded on terminal and is electrically connected, and utilizes restraint zone to be fastened the part of the insulating wrapped of this electric wire in terminal.Utilize the operation that wire intertwist is fixed on terminal by restraint zone can be completed by operator handwork, connect in the operation of electric wire and terminal and only need welder, riveted joint crimping process and riveted joint compression bonding apparatus can not be needed.As its result, the shortening of activity duration and the reduction of equipment cost can be realized by the simplification of flow chart.Further, be anchored on electric wire and terminal owing to being wound around by restraint zone, even if so the diameter of wire is different, also can be dealt with by the twining amount of accommodation zone, also can share use when the diameter of wire is different.
Described restraint zone is applicable to being used as the binder of wiring harness and the restraint zone of general resin forming product.This restraint zone is from the projecting band of box-like main body being provided with through hole, be provided with locking groove to this band zigzag, band is wound in electric wire and terminal, and the through hole of through main body stretching, carries out fastening by from the projecting locking piece of the inner surface of this through hole engaging in the locking groove of band.The band insertion recess of described terminal is provided with accordingly with the bandwidth of the restraint zone used.
When existing utilize compression bonding apparatus by the cylindrical shell of terminal riveted joint be crimped on electric wire, likely occur crimping excessively, crimping is not enough, crimp bad etc. by cylindrical shell cause to the insulating wrapped of electric wire and the damage of heart yearn, but, terminal of the present invention does not utilize cylindrical shell to carry out riveted joint crimping, therefore the problems referred to above can not occur.
In addition, at present, the welding heart yearn of electric wire and terminal the cylindrical shell of riveting crimp type terminal be because, although the welding portion of heart yearn is firmly fixed at terminal, but when having acted on the power of being torn by electric wire from terminal at the electric wire that stretching is connected with this terminal, electric wire is firmly fixed at terminal.Namely, opposing terminal from oblique direction stretching electric wire time, relative to the tear edge from the terminal by load, the bed knife of the welding of heart yearn weld part is stronger, but, when the fore-and-aft direction of the length direction to terminal and orthogonal left and right directions stretch to electric wire, relative to the tear edge by load, only the words resistance be welded and fixed of heart yearn weld part is more weak, is likely torn.Therefore, the insulating wrapped of the insulating wrapped cylindrical shell riveted joint crimped electric wire of terminal is utilized.
With heart yearn cylindrical shell, heart yearn weld part riveted joint crimping is covered heart yearn weld part mainly in order to protective core wire bonding portion does not affect by external component, and realization prevents the immersion to heart yearn weld part.But, if stop the immersion of the part to heart yearn and termination contact, then do not corrode, therefore, if by heart yearn opposing terminal seamless welding, then can prevent because of the corrosion caused of soaking.Therefore, the position of the possibility of interfering when not having external component configures terminal, do not need to cover heart yearn weld part with heart yearn cylindrical shell.
As mentioned above, in the terminal that the position of the interference not having external component configures, do not need with heart yearn cylindrical shell riveted joint crimping.In addition, utilize restraint zone to be fastened in terminal by the insulating wrapped of this electric wire, prevent terminal be subject to the tensile force of electric wire load and tear, therefore, also do not need with insulating wrapped cylindrical shell riveted joint crimping.Its result is described above, and the wired portion of terminal does not need the projecting cylindrical shell in Width both sides from substrate, can realize simple and miniaturized.
Preferably, the width of the flat substrate of described wired portion be the insulating wrapped of electric wire not from the width that the side of substrate is outstanding, and be 8mm at core section area
2in the terminal of above cotton electric wire, the band insertion recess being arranged at described wired portion is oppositely arranged in the two sides of described substrate.
In other words, for core section area is lower than 8mm
2electric wire when, because the width of substrate diminishes, so band insertion recess is located at the side of side.If arrange recess from two sides on the substrate that width is little, then by the middle body narrowed width that this recess is clamped, intensity reduces.
Terminal of the present invention be distribution in the electric wire of vehicle, being preferably used in core section area is 8mm
2the aluminium electric wire (hereinafter referred to as aluminium electric wire) that above cotton electric wire and heart yearn are made up of aluminum-based metal.
This is because, in cotton electric wire, by heart yearn is welded in terminal, can reliability of electrical connection be improved.In addition, in aluminium electric wire, owing to easily producing the corrosion that moisture causes at the contact-making surface of the terminal be made up of the copper system metal of not same metal, so can be connected with heart yearn by terminal by the welding that can prevent this corrosion from occurring, reliability of electrical connection can be improved.
Especially, the width of wired portion preferably, is set to that to be greater than core section area be 40mm by terminal of the present invention
2wire external diameter, be 8mm relative to core section area
2above and 40mm
2the aluminium electric wire of following cotton shares and uses.
Like this, owing to can be 8mm with core section area
2above and 40mm
2about 9 kinds of following cotton aluminium electric wires share and use, so significantly can cut down the kind of terminal.
The shape of the electrical contacts of terminal also can be the female of the male form of chip shape, box shaped, any one of bolt-tightened type being provided with bolt hole.
Electric wire of the present invention is in the method for attachment of terminal, in wire terminations by insulating wrapped peeling, heart yearn is exposed, by the wick arrangement exposed on the heart yearn weld part of the wired portion of described terminal, in this condition, the insulating wrapped of electric wire is positioned at the rear portion of the terminal being provided with band insertion recess, by restraint zone through band insertion recess, the insulating wrapped of electric wire be wound in terminal and be fastened and fixed, then heart yearn being welded in the heart yearn weld part of terminal.
As mentioned above, owing to terminal being fixed in electric wire restraint zone location when welding, so the heart yearn of electric wire can be made correctly to be positioned on the heart yearn weld part of terminal, can weld with stable state.
Preferred heart yearn is undertaken to the welding of terminal by ultrasonic bonding.
As welding method, any one method in resistance welded and ultrasonic bonding can be adopted, but, heart yearn be aluminum-based metal aluminium electric wire due to the fusing point of aluminum-based metal high, therefore, in resistance welded, heating-up temperature raises, and is influenced by heat and the heat ageing of insulating wrapped may occur, therefore, aluminium system electric wire is suitable for using ultrasonic bonding.In addition, also resistance welded can be used when electric wire is copper system electric wire.
And, the invention provides a kind of electric wire connecting structure of terminal, the heart yearn supersonic welding of aluminium system electric wire is connected to described terminal, and utilize restraint zone to be fastened and fixed by the insulating wrapped of this electric wire.
Invention effect
With regard to terminal of the present invention, replace the heart yearn of electric wire to be welded in terminal and the riveted joint of the cylindrical shell of the insulating wrapped terminal of electric wire is crimped, be set to and utilize restraint zone to be wound around and electric wire be fixed on the structure of terminal, therefore, the crimping process based on crimping apparatus can be discarded, realize the simplification of flow chart and the reduction of equipment cost.And can make the simple shape of terminal itself and miniaturized, the cost that also can realize terminal reduces.And, due to heart yearn is welded in terminal, utilize restraint zone that insulating wrapped is fixed on terminal, even if so diameter of wire difference also can share, do not need to arrange special terminal according to the diameter of wire, the kind of terminal can be reduced.
Accompanying drawing explanation
Fig. 1 is the stereogram of the terminal representing embodiments of the present invention;
Fig. 2 is the front elevation of the electric wire being connected to above-mentioned terminal;
Fig. 3 is the restraint zone representing fixing above-mentioned terminal and electric wire, and (A) is profile, and (B) is the profile of tightening state;
Fig. 4 is the stereogram of the state being connected with electric wire on above-mentioned terminal;
Fig. 5 is the figure representing method electric wire being connected to above-mentioned terminal;
Fig. 6 is the stereogram representing conventional example;
Fig. 7 (A) ~ (C) is the stereogram of the conventional example representing other.
Label declaration
1 terminal
2 substrates
3 wired portion
4 electrical contacts
6 heart yearn weld parts
7 (7a, 7b) are with insertion recess
8 restraint zones
8a is with
10 electric wires
11 aluminum core lines
12 insulating wrappeds
Embodiment
Below, with reference to Fig. 1 ~ Fig. 5, embodiments of the present invention are described.
Terminal 1 shown in Fig. 1 carries out perforation processing to copper system metallic plate and formed.Terminal 1 is provided with wired portion 3 in the side (rear side) of the length direction of the substrate 2 of writing board shape, and is provided with electrical contacts 4 at opposite side (front side).Electrical contacts 4 contacts with to the electrical contacts of square terminal (not shown), is electrically connected.In present embodiment, as shown in Figure 1, owing to being bolted terminal, so widened by the width of the substrate 2a of electrical contacts 4, centre is provided with bolt hole 5 wherein, and when as not carrying out necessary bending machining when female end.In addition, owing to also not arranging cylindrical shell at wired portion 3, so do not need to carry out bending machining, formed by means of only perforation processing.
As mentioned above, in wired portion 3, the substrate 2b be made up of rectangular flat board is the projecting cylindrical shell in both sides in the width direction, and using the front upper surface of substrate 2b as heart yearn weld part 6.The side counteropening of the both sides of the Width of the substrate at the rear portion of this heart yearn weld part 6 goes out to be with insertion recess 7 (7a, 7b).
Insert the band 8a of the restraint zone 8 shown in Fig. 3 to above-mentioned band insertion recess 7, to be wound on electric wire 10 and to be fixed on terminal.The restraint zone of the resin forming product that restraint zone 8 is general by the binder as wiring harness is formed, and has band 8a from the box-like main body 8b being provided with through hole 8h is projecting, is provided with locking groove 8m to this band 8a zigzag.As shown in Fig. 3 (B), be wound in by band 8a on electric wire 10 and terminal 1, the through hole 8h of through main body 8b stretches, and carries out fastening by the locking piece 8n projecting from the inner surface of this through hole 8h engaging in the locking groove 8m of band 8b.The width (c) being with insertion recess 7 is set accordingly with the width of the band 8a of the restraint zone 8 used.In the present embodiment, this width (c) is 6mm, and the thickness of slab (a) of terminal 1 is 2.3mm.
The electric wire 10 shown in Fig. 2 being connected to above-mentioned terminal 1 is distribution electric wires on vehicle, is at 8mm by core section area
2above and 40mm
2the power line of the aluminium electric wire formation of following cotton.The electric wire 10 forming this power line is connected with bus (not shown) bolted of the power supply in electric connection box.The terminal 1 be connected with the electric wire 10 of cotton is to be accommodated in electric connection box with the power supply state that bus is connected, and therefore, becoming external component can not produce interference to this terminal 1, and can not be applied in the terminal of water with the weld part of heart yearn.
With regard to said wires 10, at end by insulating wrapped 12 peeling, the aluminum core line 11 that the first line be made up of aluminum-based metal is twisted into exposes from the peeling end 12e of insulating wrapped.The heart yearn weld part 6 this aluminum core line 11 being arranged at terminal 1 carries out ultrasonic bonding.In addition, make the peeling end 12e of insulating wrapped 12 be positioned at the front side of band insertion recess 7, be wound around the insulating wrapped 12 of terminal 1 and electric wire by the restraint zone 8 through band insertion recess 7 and be fixed.
With regard to the terminal 1 of the bolted of present embodiment, wide (b) of the substrate 2b of wired portion 3 is set to 14mm.With regard to said wires 10, core section area is 8mm
2electric wire, the external diameter of insulating wrapped 12 is 5.9mm, and core section area is 40mm
2electric wire, the external diameter of insulating wrapped 12 is 12.5mm.Therefore, even if be 40mm by core section area
2the electric wire 10 of maximum diameter be equipped on the wired portion 3 of terminal 1, it also can not fly out from the side of terminal 1 outward, can use.On the other hand, be 8mm at core section area
2when, the wired portion 3 of terminal 1 be wound around restraint zone 8 and carry out fastening, electric wire 10 can be fixed on terminal 1 thus.
In aluminium electric wire, core section area is 8mm
2above and 40mm
2in following electric wire, core section area has nine kinds, is 8mm
2, 10mm
2, 12mm
2, 16mm
2, 20mm
2, 25mm
2, 30mm
2, 35mm
2, 40mm
2, therefore, relative to these nine kinds of aluminium electric wires, terminal 1 is set to shared terminal.
Above-mentioned terminal 1 is by being connected with electric wire 10 by the method shown in Fig. 5.
The electric wire 10 exposing aluminum core line 11 at end is arranged on terminal 1, and aluminum core line 11 is positioned on the heart yearn weld part 6 of terminal, make the peeling end 12e of insulating wrapped 12 be positioned at the front of band insertion recess 7.Then, by the band 8a of restraint zone 8 through band insertion recess 7, from the lower face side of terminal 1 to the top side take-up strap 8a of the insulating wrapped 12 of electric wire 10, and stretch through the through hole 8h of main body 8b, utilize restraint zone 8 that the part of the insulating wrapped 12 of electric wire 10 is firmly fixed at terminal 1.The installation of this restraint zone 8 is undertaken by operator.
Like this, locate after being fixed on terminal 1 utilizing restraint zone 8, terminal 1 is fixed on the fixed station 21 (anvil block) of ultrasonic brazing unit 20, afterwards, the die 22 of stress echo ripple is fallen from top, make it abut with aluminum core line 11, by ultrasonic bonding, aluminum core line 11 is welded and fixed (deposition) in the heart yearn weld part 6 of terminal 1.
In addition, also under the state of assigned position terminal 1 being arranged at fixed station 21, restraint zone 8 can be passed the band insertion recess 7 of terminal 1 and is wound in insulating wrapped 12 and is fastened and fixed on terminal 1.
By above-mentioned method of attachment, as shown in Figure 4, aluminum core line 11 is fixedly welded on the heart yearn weld part 6 of terminal 1, utilizes restraint zone 8 that insulating wrapped 12 is fixed on wired portion 3.Like this, owing to utilizing restraint zone 8, electric wire 10 is firmly fixed on terminal 1, even if so electric wire 10 is stretched to fore-and-aft direction P1, the left and right Width P2 orthogonal with fore-and-aft direction P1 of the length direction of the electric wire 10 shown in arrow in Fig. 4 and terminal 1 and then oblique direction P3, the weld part of aluminum core line 11 also can not be peeled off from the heart yearn weld part 6 of terminal 1, and hot strength and tearing strength reach more than desirable value.
And, according to said method, do not need the riveted joint of the cylindrical shell of the terminal in the past needed to be crimped on heart yearn and insulating wrapped, therefore, do not need to carry to crimping process after ultrasonic bonding operation, the efficient activity of the connection operation of electric wire and terminal can be realized.
Various change can be made in the scope not exceeding aim of the present invention.Such as, also alternative above-mentioned aluminium electric wire and copper electric wire is connected with terminal.In addition, terminal also can substitute bolted terminal, and electrical contacts produced as sheets is become male, also can make box-like and become female end.And, when copper electric wire, also ultrasonic bonding can be replaced by resistance welded.
Claims (4)
1. a terminal, arranges electrical contacts in the front side of the length direction of the substrate be made up of conductive metal plate, arranges wired portion at rear side, and the feature of described terminal is,
Described terminal is formed as following structure:
Described wired portion possesses the substrate of writing board shape, not from the projecting cylindrical shell in Width both sides of this substrate, using the front upper surface of this substrate as heart yearn weld part, and at least one side of the Width at the rear portion of this substrate is provided with band insertion recess, utilizes the restraint zone inserted to this band insertion recess that the insulating wrapped of electric wire is anchored on described substrate.
2. terminal as claimed in claim 1, wherein,
The width of the substrate of described wired portion is set to the insulating wrapped of electric wire not from the width that the side of substrate is outstanding, and is 8mm at core section area
2during above cotton electric wire is used, the band insertion recess being arranged at described wired portion is oppositely arranged in the two sides of described substrate.
3. as terminal according to claim 1 or claim 2, wherein,
Described electric wire be distribution in the electric wire of vehicle, and be 8mm with core line diameter
2above and 40mm
2following cotton aluminium electric wire shares and uses.
4. an electric wire connecting structure for terminal, the heart yearn of ultrasonic bonding aluminium electric wire on the terminal according to any one of claim 1 ~ claim 3, and utilize restraint zone to be fastened and fixed by the insulating wrapped of this electric wire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-026213 | 2014-02-14 | ||
| JP2014026213A JP2015153604A (en) | 2014-02-14 | 2014-02-14 | Terminal and electrical connection structure for the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104852168A true CN104852168A (en) | 2015-08-19 |
Family
ID=53851625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510075878.6A Pending CN104852168A (en) | 2014-02-14 | 2015-02-12 | Terminal and wire connecting structure of the terminal |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015153604A (en) |
| CN (1) | CN104852168A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106077938A (en) * | 2016-07-05 | 2016-11-09 | 昆山徳可汽车配件有限公司 | A kind of aluminum steel bundle ultrasonic welding process and solder terminal thereof |
| CN108777422A (en) * | 2018-05-29 | 2018-11-09 | 华为技术有限公司 | A kind of aluminium wire jumper manufacturing method for communication base station |
| CN109348735A (en) * | 2017-05-31 | 2019-02-15 | 结融科技合同会社 | The connecting structure and auxiliary terminal of electric wire |
| CN110401043A (en) * | 2018-04-24 | 2019-11-01 | 泰连德国有限公司 | Electric installation and method for manufacturing the electric installation |
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| JP2017162708A (en) * | 2016-03-10 | 2017-09-14 | 株式会社オートネットワーク技術研究所 | Manufacturing method of electric wire with terminal and electric wire with terminal |
| JP2019145263A (en) | 2018-02-19 | 2019-08-29 | 矢崎総業株式会社 | Electric wire with terminal |
| CN210985000U (en) * | 2019-11-28 | 2020-07-10 | 比亚迪股份有限公司 | Connection structure of aluminium cable and terminal and have its vehicle |
| JP7140797B2 (en) * | 2020-05-27 | 2022-09-21 | 矢崎総業株式会社 | Terminal connection structure |
| DE102020124705A1 (en) * | 2020-09-22 | 2022-03-24 | Te Connectivity Germany Gmbh | Method for manufacturing a piping system and piping system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077938A (en) * | 2016-07-05 | 2016-11-09 | 昆山徳可汽车配件有限公司 | A kind of aluminum steel bundle ultrasonic welding process and solder terminal thereof |
| CN109348735A (en) * | 2017-05-31 | 2019-02-15 | 结融科技合同会社 | The connecting structure and auxiliary terminal of electric wire |
| CN109348735B (en) * | 2017-05-31 | 2021-03-23 | 结融科技合同会社 | Connection structure of electric wire and auxiliary terminal |
| CN110401043A (en) * | 2018-04-24 | 2019-11-01 | 泰连德国有限公司 | Electric installation and method for manufacturing the electric installation |
| CN108777422A (en) * | 2018-05-29 | 2018-11-09 | 华为技术有限公司 | A kind of aluminium wire jumper manufacturing method for communication base station |
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| Publication number | Publication date |
|---|---|
| JP2015153604A (en) | 2015-08-24 |
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