CN108011197B - Connecting device between cable clamp and electrical conductor, method of making the same, and motor - Google Patents
Connecting device between cable clamp and electrical conductor, method of making the same, and motor Download PDFInfo
- Publication number
- CN108011197B CN108011197B CN201711024234.XA CN201711024234A CN108011197B CN 108011197 B CN108011197 B CN 108011197B CN 201711024234 A CN201711024234 A CN 201711024234A CN 108011197 B CN108011197 B CN 108011197B
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- electrical conductor
- core
- connecting section
- cable
- electrical
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- 239000004020 conductor Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 238000005304 joining Methods 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
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
- 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
-
- 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
- H01R4/625—Soldered or welded connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
-
- 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
- H01R4/70—Insulation of connections
-
- 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
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
其中建议了一种在电缆接线夹(4)与相应地由导电材料构成的单芯、双芯或多芯的电导线(5)之间的连接装置，其中，电缆接线夹(4)具有呈套管状的连接区段(6)，电缆接线夹(4)的功能区段(7)一体式地联接到该连接区段(6)处，其中，电导线(5)被连接区段(6)容纳且与其导电地相连接，且其中，连接区段(6)的自由端部(9)构造成与其整体地构造的带有用于电导线(5)的引入口(11)的漏斗(10)。有利地设置成，在电缆接线夹(4)与电导线(5)的组装中连接区段(6)被流体密封地封闭。
Therein is proposed a connecting device between a cable terminal (4) and a corresponding single-core, two-core or multi-core electrical conductor (5) composed of an electrically conductive material, wherein the cable terminal (4) has a A sleeve-shaped connecting section ( 6 ) to which the functional section ( 7 ) of the cable lug ( 4 ) is connected in one piece, wherein the electrical line ( 5 ) is connected by the connecting section ( 6 ) ) is accommodated and electrically conductively connected to it, and wherein the free end (9) of the connecting section (6) is designed as a funnel (10) with an inlet (11) for the electrical line (5), which is formed integrally therewith ). It is advantageously provided that the connecting section ( 6 ) is closed in a fluid-tight manner during assembly of the cable lug ( 4 ) with the electrical conductor ( 5 ).
Description
Technical Field
The invention relates to a connection device according to the invention between a cable connection clamp and an electrical conductor of a single, double or multiple core. According to the invention, it also relates to an electric machine, in particular an oil-operated electric machine, having at least one such connection device. According to the invention, it finally relates to a method for producing such a connecting device.
Background
Cable clamps for the electrically conductive connection of single-, twin-or multi-conductor electrical lines or cables to electrical machines, electrical devices or electrically conductive components have been known for a long time in different embodiments. DE 2052465 a thus describes a connecting line, in particular a grounding cable (Massekabel), which is used primarily for connecting a battery to a vehicle body. The connecting line is formed at least from a litz wire (Litze) made of aluminum or the like, to the ends of which cable clamps, likewise made of aluminum, are correspondingly fixed. In particular, it is provided here that, on the one hand, the respective end of the strand is inserted into the associated cable terminal in such a way that a cavity between its individual wires is avoided by the cable terminal being made of die-cast aluminum (aluminum-drackguss) and being cast onto the above-mentioned end of the strand, and, on the other hand, the cable terminal is completely surrounded, except for the peripheral edge at the strand-side end, by a heavy metal layer made of lead or zinc or an alloy made of the same, wherein the transition from the heavy metal layer to the aluminum surface of the peripheral edge is covered by an outer jacket layer made of an air-and moisture-tight, electrically non-conductive material. Furthermore, this document proposes a strand-side free end of the jacket layer, which is designed in a funnel-like manner for the kink protection (Knickschutz) of the strand. Furthermore, a cable terminal with a sleeve-like connecting section having a funnel, which is formed integrally with the connecting section, as a kink protector for the associated electrical line at its free end is known from the internet address "http:// de.
Disclosure of Invention
The object of the invention is to create a connection arrangement between a cable clamp and single-, double-and multi-conductor electrical conductors, which has a fluid-tight connection point between the cable clamp and the electrical conductors, which connection point is produced at minimum cost while maintaining the advantages of the prior art. Furthermore, the object of the invention is to make available an electric machine with at least one such connecting device. Furthermore, the object of the invention is to specify a suitable method for producing such a connecting device.
The object set is achieved by a connecting device according to the above-described form of the invention, by an electric machine according to the invention and by a method according to the above-described form of the invention.
To this end, a connection device between a cable clamp and a single-, double-or multi-core electrical conductor, which is respectively made of an electrically conductive material, is provided, wherein the cable clamp has a sleeve-like connection section, to which a functional section of the cable clamp is integrally connected, wherein the electrical conductor is accommodated by the connection section and is electrically conductively connected thereto, and wherein a free end of the connection section is designed as a funnel, which is designed integrally therewith, having a feed-through for the electrical conductor, and is provided such that, during assembly of the cable clamp with the electrical conductor, the connection section is closed in a fluid-tight manner.
By this measure, the joining point between the cable clamp and the electrical conductor is reliably protected against environmental conditions which are unfavorable for the joining point, for example, which are caused by the special arrangement of the connecting device.
A particularly simple and cost-effective means for fluid-tight closure of the connecting section is obtained in that at least the funnel is filled with a filling material. Preferably, the above-mentioned fillers consist of plastics, further preferably plastics in the form of one-component, two-component or multicomponent flow resins (Fliessharz) or thermoplastics. By means of such plastics, a closure combining simple processability with high sealing action, dimensional stability and electrical insulation can be achieved. Furthermore, the plastic can be used for the electrical insulation of the further outer section of the cable clamp by applying the plastic as a coating to the section in a work step in which the plastic is inserted into a funnel. As far as the electrical connection of the cable clamp to the electrical conductor is concerned, this electrical connection is preferably produced by resistance pressure welding, which advantageously combines a force fit and a form fit with a material fit. Resistance pressure welding is understood here as a welding method in which the welded parts to be joined are pressed against one another and a current flows through them. The heat formed by the electrical resistance in the case of current flow through the contact area of the weld creates heat that is used for welding. By pressing together the parts to be welded, a force fit and a form fit are furthermore achieved therebetween, which is obtainable in the case of the known joining method of crimping (Crimpen). According to a preferred embodiment of the invention, both the cable clamp and the electrical line are made of copper or a copper alloy, since copper has an outstanding electrical conductivity.
The invention also relates to an electric machine, in particular an oil-operated electric machine, having at least one connecting device of the type described above.
The method for producing a connection between a cable clamp and a single-, double-or multi-conductor electrical line, respectively, made of an electrically conductive material is characterized by the following steps:
a) providing a cable clamp having a sleeve-like connecting section to which a functional section of the cable clamp is integrally coupled, wherein a free end of the connecting section is configured as a funnel with a feed-in for an electrical conductor, which funnel is configured integrally therewith,
b) providing a single, dual or multiple core electrical conductor,
c) the electrical conductor is inserted axially into the sleeve-like connecting section of the cable clamp,
d) an electrically conductive connection is established between the electrical conductor and the connecting section of the cable clamp, and
e) the connecting section is fluid-tightly closed in the form of a sleeve.
Preferably, in view of step d), the electrical conductor is connected to the cable clamp by resistance pressure welding. It is further preferred that at least the above-mentioned funnel is filled with a filling material in view of step e). In this case, one-component, two-component or multi-component flow resins or thermoplastic plastics can be used advantageously as fillers.
The advantage of the method according to the invention results from its simple and cost-effective conversion with a particularly minimized number of operating steps for reliably forming the splice connection between the cable clamp and the electrical conductor and for reliably protecting the formed splice site against adverse environmental conditions (e.g. oil).
Drawings
The invention will be further elucidated on the basis of an embodiment which is schematically shown in the drawing. However, it is not limited to this embodiment. Wherein:
fig. 1 shows a partial view of an electric machine with a fastening device according to the invention, which accordingly comprises an electrical line which is electrically connected to a cable clamp, and
fig. 2 shows a perspective single illustration of the above-described fastening device.
List of reference numerals
1 electric machine
2 stator coil
3 terminal board
4 cable jointing clamp
5 electric lead
6 connecting section
7 functional segment
8 penetration part
9 free end (connecting section 6)
10 funnel
11 introduction port
12 free end (electric lead 5)
13 bonding position
14 of a filler.
Detailed Description
Fig. 1 shows an electric machine 1 which can be used, for example, as a traction drive for a motor vehicle, which is not shown. According to this embodiment, the above-described motor 1 has three contacts of the stator coil 2 of the motor 1 at its terminal block (klemmrett) 3 closed. The terminal block 3 is a connection or an interface to a power electronic device (inverter) not shown.
The contacting is formed according to fig. 1 and 2 by an electrical conductor 5, which is now multi-core and is equipped at one end with a cable clamp 4. Both the cable clamp 4 and the electrical conductor 5 are made of copper or a copper alloy. However, the invention is not limited to this preferred electrically conductive metallic material, but every other suitable metallic material (for example also aluminum or aluminum alloys) is contemplated.
The respective cable clamp 4 is provided as a preform for electrically conductive connection to the relevant electrical line 5. According to this exemplary embodiment, the cable clamp 4, which is composed of a galvanized copper tube, is produced according to a deformation process, in particular according to a stamping process, in such a way that it forms a sleeve-like connecting section 6 for joining the electrical lines 5 and a plate-like or flat functional section 7 integrally connected thereto.
The plate-like functional section 7 is produced, for example, by a segmented press-fitting of the tube cross section. Simultaneously with the design of the functional section 7 described above, a through-opening 8 in the form of a long hole is then provided in this functional section, which long hole serves for fixing the cable clamp 4 to the terminal strip 3 described above by means of a mechanical fixing element, preferably a fixing screw, which is not shown in the drawing. Simultaneously with or before or after the formation of the plate-like or planar functional section 7, a funnel 10 with an inlet 11 for the electrical line 5 is likewise formed at the free end 9 of the connecting section 6 or at the end 9 opposite the functional section 7.
The electrically conductive connection of the cable clamp 4 to the electrical conductor 5 is preferably achieved in that first the free end 12 of the electrical conductor 5 is introduced axially via the inlet 11 of the funnel 10 into the connecting section 6 of the cable clamp 4 and is connected there to the cable clamp 4 in an electrically conductive manner by means of the resistance welding process described above. By this joining method, heat is formed which causes a burning of the core of the electrical conductor 5 or of the possible paint insulation of the metal wire. Due to the arrangement of the electric machine 1 and accordingly also its previously described contact in an oil-containing environment, it is necessary to protect the "open", that is to say uninsulated, regions of the joining points 13, which are composed of copper or a copper alloy and which may be produced by the above-described burning.
This protection is produced according to the invention in that the connecting section 6 is closed fluid-tightly during the assembly of the cable clamp 4 with the electrical conductor 5, i.e. after the associated cable clamp 4 and the associated electrical conductor 5 have been joined to one another. According to this exemplary embodiment, at least the funnel 10 configured for this purpose is filled with a filling material 14. In tests on the subject of the application, plastics, in particular one-component, two-component or multi-component flow resins, have proven suitable as fillers 14, which combine simple processability with a high sealing action, dimensional stability and electrical insulation. The resin is not only suitable for filling the cavity formed by the funnel 10, but is also suitable for penetrating into and filling up possible gaps yet to be drawn between the connecting section 6 of the cable clamp 4 and the electrical lines 5 and possible gaps yet to be drawn between the individual cores of the electrical lines 5, as a result of which a particularly high fluid tightness and correspondingly a particularly high protection of the "open" regions of the joining points 13 is achieved. Alternatively, the filler 14 can also be formed, for example, from a thermoplastic plastic.
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016221147.1A DE102016221147A1 (en) | 2016-10-27 | 2016-10-27 | Connecting arrangement between a cable lug and an electrical line, method for producing such and electric machine |
| DE102016221147.1 | 2016-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108011197A CN108011197A (en) | 2018-05-08 |
| CN108011197B true CN108011197B (en) | 2021-08-03 |
Family
ID=62026600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024234.XA Active CN108011197B (en) | 2016-10-27 | 2017-10-27 | Connecting device between cable clamp and electrical conductor, method of making the same, and motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108011197B (en) |
| DE (1) | DE102016221147A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018127729A1 (en) * | 2018-11-07 | 2020-05-07 | Auto-Kabel Management Gmbh | Process for producing a connector for electrical systems, connector and connection of a connector with a cable |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3243758A (en) * | 1962-03-12 | 1966-03-29 | Amp Inc | Sealing of crimped connections |
| US3312929A (en) * | 1964-08-24 | 1967-04-04 | Amp Inc | Sealing of crimped electrical connectors |
| DD208016A1 (en) * | 1982-05-19 | 1984-03-21 | Heinz Hahn | ISOLATED CORROSION-PROTECTED SAFETY-LEADER PART OF GALVANIZED STEEL AND METHOD FOR THE PRODUCTION THEREOF |
| DE3932679A1 (en) * | 1989-09-29 | 1991-04-11 | Siemens Ag | Coaxial cable lead connection for IC engine knock sensor - has inner conductor and outer screening of cable lead coupled to respective connection tags |
| DE10345676A1 (en) * | 2003-10-01 | 2005-04-21 | Volkswagen Ag | Device for longitudinal water sealing of especially electrical lines has tool stamp for connecting terminating or connection element to line, injection needle for penetrating into envelope, feed sealant into cavities when moved towards rest |
| CN100440624C (en) * | 2004-09-02 | 2008-12-03 | 易鼎股份有限公司 | Signal transmission flat cable suitable for passing through rotating shaft mechanism and assembly thereof |
| DE102005044905A1 (en) * | 2005-09-14 | 2007-03-22 | Sumitomo Electric Bordnetze Gmbh | Electrical connector element especially an annular cable shoe for clamping onto a conductor has a crimp section whose hollow part is sealed after compressing the clamp |
| CN102044310B (en) * | 2009-10-20 | 2014-05-07 | 易鼎股份有限公司 | Bundle flexible circuit cable |
| CN201829624U (en) * | 2010-10-06 | 2011-05-11 | 乐清市信达利实业有限公司 | Cable splicing fitting electric conductor |
| AU2012200645A1 (en) * | 2011-02-08 | 2012-08-23 | Nexans | Arrangement with a Clamp of Metal Constructed as a Pipe Piece |
-
2016
- 2016-10-27 DE DE102016221147.1A patent/DE102016221147A1/en active Pending
-
2017
- 2017-10-27 CN CN201711024234.XA patent/CN108011197B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016221147A1 (en) | 2018-05-17 |
| CN108011197A (en) | 2018-05-08 |
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