CN101542640B - Wire harness - Google Patents
Wire harness Download PDFInfo
- Publication number
- CN101542640B CN101542640B CN2008800006693A CN200880000669A CN101542640B CN 101542640 B CN101542640 B CN 101542640B CN 2008800006693 A CN2008800006693 A CN 2008800006693A CN 200880000669 A CN200880000669 A CN 200880000669A CN 101542640 B CN101542640 B CN 101542640B
- Authority
- CN
- China
- Prior art keywords
- earth rod
- shield
- coaxial cable
- wire harness
- earth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
- H01R9/0524—Connection to outer conductor by action of a clamping member, e.g. screw fastening means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/20—Cables having a multiplicity of coaxial lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/594—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures for shielded flat cable
- H01R12/598—Each conductor being individually surrounded by shield, e.g. multiple coaxial cables in flat structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0221—Laser welding
Landscapes
- Insulated Conductors (AREA)
- Communication Cables (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Cable Accessories (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Multi-Conductor Connections (AREA)
Abstract
A wire harness using a coaxial cable, in which a ground bar and the shield of the coaxial cable are connected at a connection section in an environmentally friendly process and in a manner providing the harness with good electric characteristics. The ground bar (10) is made of a material having a lower melting point than the shield (16). For example, the ground bar (10) is made of brass or aluminum having a lower melting point than copper that forms the shield (16). The ground bar (10) and the shield (16) are connected together by applying a laser beam to the ground bar (10) and laser bonding them together by spots (30). Since the shield (16) has a higher melting point than the ground bar (10), melting of the shield (16) is suppressed because of the use of the laser bonding and, further, thermal damage to an inner dielectric layer under the shield (16) is suppressed. The environment is less affected because solder is not used.
Description
Technical field
The present invention relates to have the wire harness of coaxial cable and connector (portion of terminal), especially relate to the joint construction of the shield (external conductor portion) of earth rod and coaxial cable in the connector.
Background technology
Inside at automobile and various electronic equipments is electrically connected and the use wire harness between with part and substrate.Especially in information equipments such as mobile phone and personal computer, utilize and use the wire harness that coaxial cable is arranged, in addition,, in this coaxial cable, for example use the superfine wire of so-called AWG#42 for miniaturization, High Density Packaging in order to transmit the signal of high power capacity at a high speed.
Wire harness for example passes through the flat cable connection of many coaxial cables of superfine wire with narrow and small spacing arrangement between connector.The connector that connects this many coaxial cables for example constitutes via common earth rod the shield of each coaxial cable is set at common electric potential.In this constituted, each shield and earth rod were electrically connected through crimping or welding in the past.
Patent documentation 1: TOHKEMY 2001-15242 communique
Yet crimping has the problem that is difficult to obtain stable electrical characteristic.On the other hand, welding is used to fill up shield cylindraceous and plane gaps between electrodes, can realize excellent electric characteristics.Yet welding has the problem of complex procedures and the problem that produces environmental pollutants.
Such as patent documentation 1 record ground, for example if use the such technology of laser welding, then can be nuisanceless and realize being connected of electric wire and electrode with stable electrical characteristic.In addition, electron beam welding also has same possibility.For example, when being connected, can use laser welding to carry out the heart yearn (inner conductor portion) of coaxial cable with electrode.Yet laser welding and electron beam welding have the characteristic of fine welding basically.Therefore, when to surface area and heart yearn is big and shield cylindraceous when being suitable for laser welding etc., become the state that can only carry out basic welding in the small area of shield and electrode butt.As a result, can't make shield integral body become the current potential of homogeneous well, have the problem of the effect reduction of shielding.In addition, if shield is melted, then can the inside dielectric layer between shield and the heart yearn be damaged through laser welding.
Summary of the invention
The present invention makes in order to address the above problem a little, and its purpose is to provide the operation that is connected that can make shield and earth rod slight and can obtain the wire harness of excellent electric characteristics to the influence of environment.
Wire harness of the present invention has coaxial cable, is installed on the portion of terminal of said coaxial cable; Wherein, Said portion of terminal has the earth rod that is electrically connected with the external conductor portion of said coaxial cable; Said earth rod is made up of than the low material of said external conductor portion fusing point, through with making its curing after the said earth rod fusion, said earth rod is connected with said external conductor portion.
The present invention's wire harness on the other hand has the structure that uses laser to make said earth rod melting and solidification and said earth rod is connected with said external conductor portion.
The wire harness of optimal way of the present invention, said external conductor portion is made up of copper or copper alloy, and said earth rod is made up of brass or aluminium.
In addition, the said portion of terminal of wire harness of the present invention has the housing that keeps said earth rod in inside, and said housing has the peristome that the scope of intersecting with said coaxial cable in the said earth rod that extends across said coaxial cable is exposed.
In addition, wire harness of the present invention has as the 1st earth rod of said earth rod and the 2nd earth rod, and has the part that said the 1st earth rod, said coaxial cable and said the 2nd earth rod become sandwich structure.
According to the present invention; Because the fusing point of earth rod is lower than external conductor portion, so to earth rod irradiating laser etc. and heating and with earth rod and the welding of external conductor portion the time, can make the suitably fusion of earth rod of heating place; On the other hand, make external conductor portion become the state of fusion hardly.Under this state; Can suppress to inner dielectric layer heat conduction, especially to be suppressed near the localized heating of the inside dielectric layer of position earth rod heating place; And pass through expansion or the member filling external conductor portion of fusion and the gap between the earth rod of the fusion point of earth rod, can increase the contact area of earth rod and external conductor portion.That is, in the structure of wire harness of the present invention, do not use can external conductor portion be electrically connected with earth rod well to the big materials such as scolder of environmental impact.
Description of drawings
Fig. 1 is the schematic isometric of the wire harness of embodiment of the present invention;
Fig. 2 is the sketch map of the structure of expression connector portion;
Fig. 3 is the schematic plan view of the position relation of expression cable portion and earth rod;
Fig. 4 is the signal vertical cross section of connector portion;
Fig. 5 is the schematic plan view of cross section of shield and the earth rod of expression coaxial cable.
Embodiment
Below, according to accompanying drawing execution mode of the present invention (to call execution mode in the following text) is described.
Fig. 1 is the schematic isometric of the wire harness of execution mode.Wire harness 2 is reached the connector portion 6 that is arranged at two ends respectively and is constituted by cable portion 4.Cable portion 4 flat cable that many coaxial cables being arranged in parallel constitute of for example serving as reasons.The shape of connector portion 6 for example, is constituted the male connector person and is called as plug casing by housing 8 decisions, is called as Socket casing and constitute female connector person system.For example, connector portion 6 shown in Figure 1 is a male connector, and is chimeric with the female connector that is installed on (not shown) such as substrates.
Fig. 2 is the sketch map of the structure of expression connector portion 6.Connector portion 6 comprises the end of housing 8, earth rod 10 and cable portion 4 and constitutes.
With each the coaxial cable 12 end strip off that constitutes cable portion 4, be provided with the exposed portions serve of exposing shield 16, inner dielectric layer 18, heart yearn 20 successively towards front end from the part that is coated by outside lining 14.In addition, when strip off, the operation of outside lining 14 of cutting and inner dielectric layer 18 can be used the device that is called the laser wire stripper and carry out with high productivity.This device system uses CO
2Laser can not damage the metal part (shield 16 or heart yearn 20) that is positioned under outside lining 14 and the inner dielectric layer 18, and optionally cuts outside lining 14, inner dielectric layer 18.The operation use capable of using of cutting shield 16 has YAG laser or YVO
4The device that is called laser shield cutter of laser etc. and carrying out with high productivity.
A plurality of shields 16 of on the Width of cable portion 4, arranging are close to earth rod 10a from the one side side of cable portion 4, are close to earth rod 10b from the opposing face side.
Earth rod 10 is for having the elongated plate-like member with corresponding width of the length of the shield that exposes in the end of cable portion 4 16 and the length bigger than the width of cable portion 4.Earth rod 10 intersects with the exposed portions serve of shield 16 and extends across cable portion 4, jointly is connected with each shield 16, and each shield 16 is set in common earthing potential.Earth rod 10 is pre-formed recess 24 in order to increase and shield 16 surface contact area cylindraceous in the position with shield 16 butts.
Housing 8 for example is made up of two housing part 8a, 8b.For example, housing part 8b is formed with the end of taking in cable portion 4 or the recess 26 of earth rod 10 in the inboard.In addition, the electrode pad 22 that configuration is connected with the heart yearn 20 of each coaxial cable 12 in recess 26.
Earth rod 10 is being arranged in advance in the formation of housing part 8a, 8b; Through in the recess 26 of housing part 8b, settling the end of cable portion 4; Housing part 8a is assembled on the housing part 8b, forms shield 16 and be grounded the sandwich structure that excellent 10a, 10b clip.For the laser welding of stating after can carrying out, peristome 28a, the 28b that the scope of intersecting with cable portion 4 on earth rod 10a, 10b surface is exposed is set at the housing part 8a, the 8b that are used for this formation.
Fig. 3 is the schematic plan view of the position relation of expression cable portion 4 and earth rod 10.In addition, Fig. 4 is the signal vertical cross section of the connector portion 6 of assembling back, representes the corresponding cross section, position with straight line A-A ' shown in Figure 3.Housing 8 keeps the end of earth rod 10 and cable portion 4 in inside.The end of housing part 8a, 8b clamping earth rod 10a, 10b length direction, with two earth rods 10 to shield 16 application of forces.Thus, earth rod 10a, 10b are crimped on the shield 16.Under this state, from the outside of connector portion 6 via peristome 28a, 28b to earth rod 10a, 10b irradiating laser, make earth rod 10 weldings on shield 16.
At this, earth rod 10 uses the fusing points material lower than shield 16.Most situation, shield 16 is made up of copper (or copper alloy).With respect to this shield 16, earth rod 10 is for example formed by brass or aluminium.The thickness of earth rod 10 is considered to be suitable for carrying out laser welding or intensity etc. and is set, and for example can be about 50 μ m.In addition, as laser, for example can use YAG laser or optical-fiber laser etc.
Fig. 5 is the schematic plan view of the cross section of expression shield 16 and earth rod 10.Shield 16 has the knitting structure that forms with fine copper cash, and each copper cash that constitutes this braiding forms spiral along the axle of coaxial cable 12.This knitting structure of oblique line performance among Fig. 5 shown in shield 16 parts.Point 30 expression laser welding places.Locate irradiating laser pulse until the fusion of the inside of earth rod 10 at this.At this moment, because the fusing point of shield 16 than earth rod 10 height, can suppress the fusion of shield 16 and be grounded rod 10 fusion point to horizontal expansion.In addition, the material of the earth rod 10 after the fusion soaks in the knitting structure of shield 16, spreads, and also can realize the expansion of welding area thus.
The laser welding of earth rod 10 and shield 16 can be in the width range of earth rod 10, coaxial cable 12 axially on a plurality of points 30 of staggering carry out.A plurality of positions irradiating laser that also can on the length direction of earth rod 10, stagger in addition, and welding.Like this, through increasing the quantity of point 30, earth rod 10 is electrically connected with shield 16 better.More specifically describe, 30 quantity increases through making a little, more constitutes the copper cash and earth rod 10 weldings of the braiding of shield 16, improves the current potential homogeneity of shield 16.In addition, like this execution mode, clip shield 16 by earth rod 10 and form intercalated state and each earth rod 10 laser welding are also effective to the raising of the current potential homogeneity of shield 16 to the shield 16.
In addition, the structure of shield 16 is not limited to knitting structure, for example, under the situation that all is wound into spiral helicine structure abreast, also can obtain above-mentioned effect.
Represented to implement from peristome 28a, 28b the formation of laser welding in the above-described embodiment in assembling connector portion 6 backs.But also can form with earth rod 10 laser weldings to the shield 16 back, be accommodated in the formation of housing part 8a, 8b.At this moment, can peristome 28a, 28b be set at housing part 8a, 8b yet.In addition, also can form and make 10 formations that are connected with a side of shield 16 of earth rod.
Though above-mentioned earth rod 10 is for being pre-formed the structure of recess 24; But also can form following formation; That is, earth rod 10 is formed the flat board that the member by softness constitutes, through with it by being pressed on the shield 16; Make earth rod 10 surface depressions, the earth rod 10 and the contact area of shield 16 are increased.For example, such formation can clip the sandwich structure of shield 16 and punching press carried out in this sandwich structure realized through forming by two earth rods 10.
Claims (5)
1. wire harness has coaxial cable, is installed on the portion of terminal of said coaxial cable, it is characterized in that,
Said portion of terminal has the earth rod that is electrically connected with the external conductor portion of said coaxial cable,
Said earth rod is made up of than the low material of said external conductor portion fusing point, through with making its curing after the said earth rod fusion, said earth rod is connected with said external conductor portion.
2. wire harness as claimed in claim 1 is characterized in that, uses laser to make said earth rod melting and solidification and said earth rod is connected with said external conductor portion.
3. wire harness as claimed in claim 1 is characterized in that, said external conductor portion is made up of copper or copper alloy, and said earth rod is made up of brass or aluminium.
4. wire harness as claimed in claim 1 is characterized in that,
Said portion of terminal has the housing that keeps said earth rod in inside,
Said housing has peristome, and said peristome exposes the scope of intersecting with said coaxial cable in the said earth rod that extends across said coaxial cable.
5. wire harness as claimed in claim 1 is characterized in that, has the 1st earth rod and the 2nd earth rod as said earth rod,
And has the part that said the 1st earth rod, said coaxial cable and said the 2nd earth rod become sandwich structure.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP193795/2007 | 2007-07-25 | ||
| JP2007193795A JP4399482B2 (en) | 2007-07-25 | 2007-07-25 | Wire Harness |
| PCT/JP2008/062493 WO2009014010A1 (en) | 2007-07-25 | 2008-07-10 | Wire harness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101542640A CN101542640A (en) | 2009-09-23 |
| CN101542640B true CN101542640B (en) | 2012-05-02 |
Family
ID=40281268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800006693A Expired - Fee Related CN101542640B (en) | 2007-07-25 | 2008-07-10 | Wire harness |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4399482B2 (en) |
| KR (1) | KR101015793B1 (en) |
| CN (1) | CN101542640B (en) |
| TW (1) | TW200913422A (en) |
| WO (1) | WO2009014010A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2012014610A (en) * | 2010-06-23 | 2013-02-07 | 3M Innovative Properties Co | Multi-channel cabling for rf signal distribution. |
| CN101913025A (en) * | 2010-07-29 | 2010-12-15 | 江苏通鼎光电股份有限公司 | Method for connecting ultrathin metal strap in production of radio frequency coaxial cable and connecting device |
| CN102303188B (en) * | 2011-07-28 | 2014-01-08 | 武汉凌云光电科技有限责任公司 | Laser welding device for superfine coaxial ribbon cable connector and welding process thereof |
| WO2013190664A1 (en) * | 2012-06-20 | 2013-12-27 | 株式会社安川電機 | Flexible cable, connection mechanism for flexible cable, wiring board and electronic device |
| JP6620054B2 (en) * | 2016-03-30 | 2019-12-11 | タツタ電線株式会社 | Multi-core cable and method of manufacturing multi-core cable |
| JP6763310B2 (en) * | 2017-01-23 | 2020-09-30 | 株式会社オートネットワーク技術研究所 | Electromagnetic shield parts and wire harness |
| WO2019026219A1 (en) * | 2017-08-02 | 2019-02-07 | オリンパス株式会社 | Cable end structure, cable connection structure, and endoscope |
| JP6481729B2 (en) * | 2017-08-24 | 2019-03-13 | 第一精工株式会社 | Electrical connector |
| JP6994081B2 (en) * | 2019-06-14 | 2022-01-14 | センサービュー・インコーポレイテッド | Small coaxial cable connector for ultra-high frequency signal transmission |
| CN111682368B (en) | 2020-06-19 | 2021-08-03 | 东莞立讯技术有限公司 | Back panel connector |
| CN112652906B (en) * | 2020-06-19 | 2022-12-02 | 东莞立讯技术有限公司 | Plugging module and cable connector |
| TWI792271B (en) | 2020-06-19 | 2023-02-11 | 大陸商東莞立訊技術有限公司 | Backplane connector assembly |
| JP7348221B2 (en) | 2021-03-03 | 2023-09-20 | 矢崎総業株式会社 | Connection method in braided connection structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01211870A (en) * | 1988-02-18 | 1989-08-25 | Hirose Electric Co Ltd | Electric connector for coaxial cable and connection thereof |
| JP3719693B2 (en) * | 1996-11-07 | 2005-11-24 | 住友電気工業株式会社 | Manufacturing method of processed wire products |
| JP2001015242A (en) * | 1999-06-29 | 2001-01-19 | Oki Electric Cable Co Ltd | Connecting method of insulating core wire to connector terminal by laser irradiation |
| JP3477639B2 (en) * | 2000-04-26 | 2003-12-10 | 日本航空電子工業株式会社 | Cable connector |
| JP2005302417A (en) * | 2004-04-08 | 2005-10-27 | Honda Tsushin Kogyo Co Ltd | Connector for cable |
| JP4598431B2 (en) * | 2004-04-28 | 2010-12-15 | 株式会社フジクラ | Micro coaxial cable assembly and connector connection method of micro coaxial cable |
| JP2006120364A (en) * | 2004-10-19 | 2006-05-11 | Matsushita Electric Works Ltd | Manufacturing method of coaxial thin-wire connector |
| JP4720169B2 (en) * | 2004-12-06 | 2011-07-13 | 日立電線株式会社 | Shielded wire, connection method of casing connected to it, and shielded wire unit |
| JP2006196418A (en) * | 2005-01-17 | 2006-07-27 | Sumitomo Electric Ind Ltd | Electric wire workpiece and its manufacturing method |
| JP5032006B2 (en) * | 2005-07-05 | 2012-09-26 | 株式会社潤工社 | Flat cable |
| JP2007317554A (en) * | 2006-05-26 | 2007-12-06 | Three M Innovative Properties Co | Connector and connector system |
| JP2009202158A (en) * | 2006-06-09 | 2009-09-10 | Phoeton Corp | Laser welding method |
-
2007
- 2007-07-25 JP JP2007193795A patent/JP4399482B2/en not_active Expired - Fee Related
-
2008
- 2008-07-10 KR KR1020097005249A patent/KR101015793B1/en not_active IP Right Cessation
- 2008-07-10 WO PCT/JP2008/062493 patent/WO2009014010A1/en active Application Filing
- 2008-07-10 CN CN2008800006693A patent/CN101542640B/en not_active Expired - Fee Related
- 2008-07-17 TW TW097127064A patent/TW200913422A/en unknown
Non-Patent Citations (5)
| Title |
|---|
| JP特开2001-15242A 2001.01.19 |
| JP特开2005-302417A 2005.10.27 |
| JP特开2005-317333A 2005.11.10 |
| JP特开2007-18782A 2007.01.25 |
| JP特开平10-144145A 1998.05.29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4399482B2 (en) | 2010-01-13 |
| WO2009014010A1 (en) | 2009-01-29 |
| TW200913422A (en) | 2009-03-16 |
| KR101015793B1 (en) | 2011-02-18 |
| KR20090082175A (en) | 2009-07-29 |
| CN101542640A (en) | 2009-09-23 |
| JP2009032462A (en) | 2009-02-12 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20120710 |