EP3485539B1 - Hochtemperaturbeständiger steckverbinder für einen klopfsensor einer brennkraftmaschine - Google Patents

Hochtemperaturbeständiger steckverbinder für einen klopfsensor einer brennkraftmaschine Download PDF

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Publication number
EP3485539B1
EP3485539B1 EP17739589.4A EP17739589A EP3485539B1 EP 3485539 B1 EP3485539 B1 EP 3485539B1 EP 17739589 A EP17739589 A EP 17739589A EP 3485539 B1 EP3485539 B1 EP 3485539B1
Authority
EP
European Patent Office
Prior art keywords
cable
contact
contact carrier
outer housing
seal
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.)
Active
Application number
EP17739589.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3485539A1 (de
Inventor
Manuel Linseder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hirschmann Automotive GmbH
Original Assignee
Hirschmann Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hirschmann Automotive GmbH filed Critical Hirschmann Automotive GmbH
Publication of EP3485539A1 publication Critical patent/EP3485539A1/de
Application granted granted Critical
Publication of EP3485539B1 publication Critical patent/EP3485539B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4361—Insertion of locking piece perpendicular to direction of contact insertion
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing
    • H01R13/5829—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing the clamping part being flexibly or hingedly connected to the housing
    • 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
    • H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
    • 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
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve

Definitions

  • the invention relates to a connector and a method for assembling a connector according to the features of the respective preambles of the two independent patent claims.
  • Connectors which have a contact carrier, the contact carrier having contact cavities for the corresponding number of contact partners that it is to accommodate, with each contact partner being arranged at one end of an electrical conductor of a cable, i.e. mechanically fixed and electrically contacted.
  • the contact carrier has a contact chamber into which only one contact partner is inserted.
  • connectors have also become known which have a contact carrier which has more than one contact chamber in a row, but possibly also in several rows lying parallel to one another.
  • the contact partner When assembling such a connector, the contact partner is arranged in a suitable manner at the end of the respective electrical conductor of the cable and then inserted into the contact chamber in the contact carrier.
  • the Contact partner In order for the contact partner to be defined in his contact chamber, the Contact partner in a known manner on a flexible protruding spring clip.
  • this spring clip When the contact partner is inserted into the contact chamber, this spring clip is moved out of its starting position while the contact partner is inserted into the contact chamber. Once it has reached its final position, the spring shackle moves back into its original position and latches onto a corresponding undercut on the connector's contact carrier.
  • such contact partners must be equipped with these spring shackles, as a result of which the shaping and thus the production of such contact partners is complex.
  • the contact carrier is provided with an outer housing after the contact partners have been inserted into their respective contact chamber.
  • the outer housing can be realized as an overmolding.
  • complex measures are necessary here, which on the one hand prevent the overmolding compound from penetrating into the contact chamber and the receiving space of the plug connector for a mating plug connector.
  • a high temperature is to be understood as meaning all temperatures that are significantly above the ambient temperature and to which a vehicle is exposed, for example. This is not only about the temperatures that are caused by the external heat radiation (sunlight), but also at the installation location of the connector (e.g. in the engine or transmission compartment, in the axle area or in other installation spaces in which temperatures accumulate). . In addition, there is always the problem in such installation spaces that the plug connection, formed from the plug connector and a mating plug connector, is exposed to water, splash water, moisture and the like.
  • the sheathed line (outer sheath) of the cable In order to be able to deal with the high temperatures, it has already become known to produce the sheathed line (outer sheath) of the cable from a material that is stable at high temperatures.
  • an outer shell withstands the environmental conditions at the installation site very well (watertightness, heat resistance and the like)
  • the outer housing cannot be formed by an overmolding process. This is because in the overmolding process, the material that forms the overmolding compound is brought to higher temperatures so that it melts and accordingly can be overmolded.
  • this temperature does not cause the material of the outer sheath of the cable to dissolve during the overmoulding process, since its purpose is to withstand high temperatures.
  • the invention is therefore based on the object of providing both a plug connector and a method for assembling such a plug connector, with which the disadvantages described at the outset are avoided.
  • the longitudinal watertightness and the strain relief should be ensured for cables that have an outer sheath made of a high-temperature-resistant material while at the same time being easy to assemble.
  • a concept for a watertight connector with a high-temperature-resistant sheathed cable is to be specified in order to achieve a seal between the overmolding and the outer sheath and to achieve strain relief in order to provide a different solution, since the materials in the sheathed cable are different made of materials that are stable at high temperatures cannot be bonded to the overmoulding used to implement the outer housing.
  • the contact carrier has a latching tab for fixing the at least one contact partner in the contact carrier and at least one latching hook arranged at its end and acting on the cable.
  • the locking tab it is possible to fix the at least one contact partner, preferably several contact partners, in one step in the contact carrier.
  • the complex design of contact partners with a protruding flexible spring clip for the so-called primary locking of the contact partner in the contact carrier can be omitted, so that the contact partners can be designed more simply.
  • the contact carrier has at least one end (opposite the receiving space for the mating connector) and the cable acting locking hook.
  • the at least one latching hook preferably two opposite latching hooks, according to a development of the invention, act on the outer sheath of the cable in the sense that pressure exerted by the outer housing on the at least one latching hook when the contact carrier is inserted as intended in the outer housing is a form-fitting connection between the snap-in hook and the outer casing, in order to achieve longitudinal watertightness as well as strain relief.
  • a material connection between the outer housing and the outer sheath of the cable is no longer necessary, but instead the longitudinal watertightness and the strain relief are realized by a positive connection of the at least one latching hook with the outer sheath of the cable.
  • the inner geometry of the at least one latching hook, preferably both latching hooks is designed in such a way that the outer casing can still be moved in this area when the cable is inserted.
  • such pressure should act through the latching hook on the outer sheath of the cable that the required form fit is achieved by matching the geometries.
  • the contact carrier has a circumferential groove into which a housing seal is inserted. Since the contact carrier and the outer housing surrounding it are separate components, it is absolutely necessary to provide a seal in order to achieve longitudinal watertightness from the direction of the cable in the direction of the mating connector.
  • this housing seal is placed in a circumferential groove between the contact carrier and the outer housing used in the contact carrier as a separate part.
  • the contact carrier can be produced very easily, for example as an injection molded part, and the housing seal can also be inserted very easily into the circumferential groove.
  • a seal in the sealing area between the contact carrier and the outer housing which seal is part of the outer housing and/or the contact carrier.
  • the contact carrier and/or the outer housing with an outward-facing seal (contact carrier) or with an inward-facing seal (outer housing) in a two-component plastic injection molding process.
  • the geometry of such a seal either only on the contact carrier or only on the outer housing) or the geometries of two seals (both on the outer housing and on the contact carrier) are matched to one another, so that the at least one seal on the outer housing or the contact carrier rests on the associated component comes. It is also conceivable that when two seals are used (both on the contact carrier and on the outer housing), the two sealing geometries come into contact with one another.
  • the outer housing has a receiving space at its end, into which a cable seal is inserted, which seals the cable.
  • a receiving space is provided at the end of the outer housing (the end facing away from the receiving space for the mating connector), in which the cable seal is already inserted before the connector is assembled with its individual components or during the Assembly is introduced.
  • the outer housing it is also conceivable as an alternative, as already described above with regard to the design of the housing seal, for the outer housing to have a one-piece cable seal at its end, which seals against the cable. Also in such a case, the outer housing is made in a two-component plastic injection molding process, with the plastic material being a harder material to form the housing itself and the material forming the cable seal being correspondingly softer to achieve the sealing effect .
  • this configuration has the particular advantage that one less part (namely a separate cable seal) can be assembled, which means that compared to the design of the cable seal as a separate component, not only can one part not be forgotten, but also one fewer assembly step is required.
  • the cable has an outer jacket made of a material that is resistant to high temperatures. While normal ambient conditions, particularly in the case of vehicles, are defined as the reference temperature, for example in a range between -20 degrees and +50 degrees High temperatures significantly higher, in particular higher than the 50 degrees mentioned. In particular, high temperatures are defined as greater than 75 degrees, more particularly greater than 100 degrees, more particularly greater than 120 degrees and further greater than 150 degrees.
  • the invention provides that the contact carrier has a latching tab for fixing the at least one contact partner in the contact carrier and at least one latching hook arranged at its end and acting on the cable, with both the latching tab and the at least one latching hook be moved from an initial position to an operative position when the contact carrier is inserted into the outer housing.
  • the contact carrier has the means which, as already described above for the connector itself, realize the primary locking of the at least one contact partner in its contact chamber in the contact carrier and the longitudinal watertightness and also the strain relief.
  • the outer housing has a receiving space at its end, into which a cable seal is moved into the receiving space by means of the insertion process of the contact carrier into the outer housing, which seals the cable in its functional position.
  • the plug connector is preferably used in vehicles, for example in an engine compartment (for example for wiring actuators such as injectors or sensors such as speed sensors, knock sensors and the like), on a transmission (also for wiring actuators and/or sensors) or others Installation spaces in vehicles in which high temperatures prevail that are significantly higher (in particular greater than 75 degrees Celsius) than the ambient temperature (in particular up to around 50 degrees Celsius).
  • Both variants are based on a connector 1 to be produced, which is used in a high-temperature area, in particular in an automotive environment.
  • the plug connector 1 together with a mating connector (not shown) forms a plug connection, the mating connector also being able to be arranged at one end of a cable like the plug connector 1 itself, but also being part of an electronic device, for example a control unit in a vehicle.
  • the connector 1 shown is arranged at one end of a cable 20 and includes a contact carrier 30, the end of the cable 20 and the majority of the contact carrier 30 being arranged within an outer housing 40.
  • the contact carrier 30 and the outer housing 40 are different from each other separately manufactured components that can be manufactured in large numbers, for example, from the same or different materials in a plastic injection molding process.
  • the outer sheath of the cable 20 consists of a high-temperature-resistant material which cannot be overmolded in a plastic injection molding process with a corresponding overmolding compound that is longitudinally watertight and strain-relieving.
  • the cable 20 is shown at the bottom right, which has at least one electrical conductor 21, here exactly two electrical conductors 21.
  • Contact partners 22 are arranged at each end of the electrical conductor 21 in a corresponding number of the electrical conductors 21 of the cable 20 .
  • the contact partners 22 are in the form of pin contacts.
  • the arrangement of each contact partner 22 on its associated electrical conductor 21 can, but does not have to, take place via a crimp connection 23 .
  • a crimp connection 23 has the particular advantage that both the electrical contacting and the mechanical fixing of the contact partner 22 to its electrical conductor 21 can be carried out reliably, permanently and also, if necessary, in an automated manner.
  • the contact carrier 30 can be seen, which has at least one locking tab 31 .
  • the contact carrier 30 has at least one latching hook 32, here two opposite latching hooks 32, at its one end. It also has a circumferential groove 33.
  • the outer housing 40 In the illustration at the top right figure 2 the outer housing 40 is shown, which has a receiving space 41 for a mating connector, which is no longer shown. A receiving space 42 at the opposite end of the outer housing 40 from the receiving space 41 is provided for receiving a cable seal to be described.
  • a housing seal 50 In the upper center representation is a housing seal 50 and in the lower left representation of the figure 2 a cable seal 60 can be seen.
  • the geometric design of the housing seal 50 and the cable seal 60 is only an example and can be changed, ie adapted, depending on the geometry of the contact carrier 30 or the outer housing 40 .
  • the prepared cable (recognizable in the lower right illustration in figure 2 ) starting from the receiving space 42 of the outer housing 40 pushed through this with the contact partners 22 in front.
  • the end of the cable 2 facing away from the contact partners 22 it is also conceivable for the end of the cable 2 facing away from the contact partners 22 to be pushed into the outer housing 40 from the receiving space 41 .
  • the insertion process of the contact carrier 30 takes place in the outer housing 40. So when looking at the lower representation of the figure 3 the contact carrier is inserted into the outer housing 40 to the right. During this longitudinal movement of the contact carrier 30 in the direction of the interior of the outer housing 40, the cable seal 60 is moved from its fixed position on the cable 20 in the direction of the receiving space 42 of the outer housing 40 and fixed there. As an alternative to this, it would also be conceivable to insert the cable seal 60 into the receiving space 42 of the outer housing 40 before the cable 20 is pushed in. In the figure 3 However, the variant shown (below) has the advantage that the prior fixing of the cable seal 60 on the cable 20 makes it clear that the cable seal 60 is present and can be brought into its intended position. A visual check is also possible here, so that this cable seal 60 is not forgotten.
  • the contact carrier is moved further in the direction of the interior of the outer housing 40, not only is the cable seal 60 fixed as intended in the receiving space 42, but the at least one latching hook 32, in particular the two opposite latching hooks 32, come to rest against the inner geometry of the outer housing 40
  • This inner geometry is selected in such a way (for example an oblique course) that the inner geometry presses on the outer surface of the at least one latching hook 32, which in turn causes the contact geometry of the latching hook 32 to act in a form-fitting manner on the outer jacket of the cable 20, in particular is pressed on it.
  • the longitudinal watertightness in this area and also the strain relief are then realized by means of this form fit.
  • the contact carrier 30 When the contact carrier 30 is inserted into the outer housing 40, not only are the two latching hooks 32 actuated in this exemplary embodiment, but also the at least one latching lug 31 (or if there are several latching lugs, all latching lugs are actuated).
  • This primary locking does not work if even just one of the contact partners 32 is not in its desired position in its contact chamber of the contact carrier 30 .
  • the primary locking in addition to achieving longitudinal watertightness and strain relief, not only can the primary locking be implemented in one assembly step, but there is also a check as to whether the contact partners are properly arranged in their contact partners.
  • the outer housing 40 has a cable seal 70 at its end.
  • This cable seal 70 is also produced when the outer housing 40 is produced, for example in a two-component plastic injection molding process.
  • the outer housing 40 and the cable seal 70 are a one-piece component, the separate cable seal 60, which is still in accordance with the embodiment Figures 1 to 4 was required. This has the particular advantage that a separate component is less required and has to be assembled.
  • the housing seal 50 shown there can also be omitted if it has been produced in one piece with the contact carrier 30, also in a two-component plastic injection molding process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Spark Plugs (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
EP17739589.4A 2016-07-15 2017-07-14 Hochtemperaturbeständiger steckverbinder für einen klopfsensor einer brennkraftmaschine Active EP3485539B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016113066 2016-07-15
PCT/EP2017/067910 WO2018011415A1 (de) 2016-07-15 2017-07-14 Hochtemperaturbeständiger steckverbinder für einen klopfsensor einer brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP3485539A1 EP3485539A1 (de) 2019-05-22
EP3485539B1 true EP3485539B1 (de) 2022-06-29

Family

ID=59337694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17739589.4A Active EP3485539B1 (de) 2016-07-15 2017-07-14 Hochtemperaturbeständiger steckverbinder für einen klopfsensor einer brennkraftmaschine

Country Status (8)

Country Link
US (1) US10581195B2 (es)
EP (1) EP3485539B1 (es)
KR (1) KR102442757B1 (es)
CN (1) CN109643867B (es)
DE (1) DE102017115913A1 (es)
ES (1) ES2922285T3 (es)
MX (1) MX2018015245A (es)
WO (1) WO2018011415A1 (es)

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JP6919577B2 (ja) * 2018-01-16 2021-08-18 株式会社オートネットワーク技術研究所 コネクタ
WO2020025661A1 (de) * 2018-07-31 2020-02-06 Hirschmann Automotive Gmbh Verbesserte abdichtung der kontaktkammern gegen spritzgussmaterial (kunststoff) während des umspritzprozesses bei der herstellung eines steckverbinders
DE102020119622A1 (de) * 2019-07-26 2021-01-28 Hirschmann Automotive Gmbh Adapterstecker mit Spielausgleich
US11677186B2 (en) * 2021-08-17 2023-06-13 Littelfuse, Inc. Quick assembly plug connector

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Also Published As

Publication number Publication date
DE102017115913A1 (de) 2018-01-18
WO2018011415A1 (de) 2018-01-18
EP3485539A1 (de) 2019-05-22
US10581195B2 (en) 2020-03-03
CN109643867A (zh) 2019-04-16
ES2922285T3 (es) 2022-09-12
MX2018015245A (es) 2019-11-12
US20190221963A1 (en) 2019-07-18
KR102442757B1 (ko) 2022-09-13
CN109643867B (zh) 2021-06-18
KR20190025912A (ko) 2019-03-12

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