Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/08—Distribution boxes; Connection or junction boxes
  • H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets

Definitions

• the invention is based on a connecting line for an electrical device according to the preamble of the main claim.
• a connecting line for an electrical device according to the preamble of the main claim.
• a connecting line it is known to arrange a shrink tube on each end section of the plastic sleeve that surrounds a wire and extends to the end of the stripped conductor.
• the shrink tubing covers the transition from the stripped end of the conductor to the conductor surrounded by an insulating sheath and forming a core of the line.
• the plastic grommet is sprayed around the wire ends and the end section of a plastic sheath that envelops the wires and is welded together with it.
• the disadvantage here is that the conductor ends are not sufficiently moisture-proof. With stranded conductors, the moisture can spread between the individual wires.
• the connecting line according to the invention with the characterizing features of the main claim has the. Advantage that the connecting line by direct extrusion coating and connecting the plastic grommet to the conductor ends, the penetration of moisture on the way between the electrical conductor and the plastic grommet, between the plastic grommet and the cable sheath surrounding it and the conductor ends, and between the cable sheath and the housing enclosing it is prevented. As a result, a sufficient pressure and moisture-proof connection line is attached for sensors which are provided in an exposed position in the motor vehicle - for example for an anti-lock braking system or digital engine electronics.
• the mechanical strength of the scalp solution which can be achieved with simple means, is to be regarded as a further advantage.
• the measures listed in the subclaims permit advantageous developments of the connecting line specified in the main claim. It is particularly advantageous to design the electrical conductor as a solid conductor or at least the end of the conductor to be attached to the connection point of the housing as a solid conductor and to apply a layer of a melting thermoplastic or reactive thermosetting plastic on the insulation adhering to a conductor section, which layer coalesces with the thermoplastic or thermosetting plastic in the plastic sleeve Overmolding the spout connects or reacted with him.
• the plastic grommet also connects to the conductor jacket if a jacket cable is to be used.
• FIG. 1 shows a first exemplary embodiment of the end of a connecting line with a pressure-tight and moisture-proof spout, with the simplified illustrated connected electrical device and the spout embedded in the insulating housing of the device
• FIG. 2 shows a second exemplary embodiment of the connecting line with a pressure-tight and moisture-proof spout which is arranged in a housing bore.
• FIG. 1 shows a first exemplary embodiment of a connecting line, which is connected pressure-tight and moisture-tight to an electrical device designed as a sensor.
• the connecting line 1 has two wires 2 and 3, which are surrounded by an outer plastic jacket 4.
• the cores 2 and 3 each consist of a stranded conductor 5 or 6, which is embedded in an associated insulating sleeve 7 or 8.
• the conductors 5 and 6 are at one end 5a; 6a stripped, ie. freed from the insulating sleeve 7 or 3.
• a section 2a or 3a of the wires connects to the stripped conductor ends 5a and 6a, from which the plastic sheath 4 is removed.
• a solid conductor 9 or 10 is attached in an electrically conductive manner, for. 3. soldered or welded on.
• the solid conductor 9; 10 is covered on one section with adhesive insulation 11 or 12.
• the adhesive insulation 11; 12 consists, for example, of a lacquer coating.
• the adhesive insulation 11; 12 prevents the spreading of moisture on the circumference of the solid conductor 9 or 10.
• the solid conductor ends 9 and 10 serve to connect the line 1 to the electrical device.
• the end of the connecting line 1 is extrusion-coated in an injection mold with a spout 14 made of a thermoplastic or thermosetting insulating material.
• a spout 14 made of a thermoplastic or thermosetting insulating material.
• the choice of insulating material depends, among other things, on the required level of heat resistance, which must be taken into account, for example, in the case of function-critical devices in motor vehicles, such as sensors, as well as the sealing against pressures and moisture.
• the grommet 14 encloses the end section of the plastic sheath 4, the projecting ends 2a and 3a of the wires 2 and 3 with the stripped ends 5a and 6a of the stranded conductors 5 and 6 and those on the stranded conductors 5; 6 fixed solid conductors 9; 10 to at least part of the insulation 11 adhering to them; 12.
• the conductor 5; 6 surrounds the grommet 14, the individual conductors 5a, 9 or 6a, 10 and connects or reacts with the insulation 11; 12th
• the free end of the solid conductor 9; 10 is also stripped and connected in a manner known per se to a sensor 15, not shown.
• the housing 13 of the sensor 15 envelops the connection area between the connecting line 1 and the sensor 15.
• the housing 13 also consists of a thermoplastic or thermoset insulating material. It connects or reacts with the spout 14 and the part of the adhesive insulation 11 not enclosed by the spout 14; 12 the solid conductor 9; 10.
• the use of the solid conductors 9, 10 with the adhesive insulation 11; 12 as connection ends of the stranded conductor 5; 6 shows a simple pressure and moisture-tight conductor leadthrough.
• solid conductors 9; 10 applied insulation 11; 12 is on a section with the spout 14 and on the subsequent Section tightly connected to the housing 13 as well as the housing and spout.
• the solid conductors 9; 10 that the connection ends of the connecting line 1 are sufficiently mechanically stable.
• solid wires 9; 10 suitable, for example, soft annealed enamelled wire.
• a particularly stable connection is achieved if the adhesive insulation 11; 12 additionally a melting thermoplastic layer, for example polyamide or a reactive thermoset layer, e.g. B. folyesterimide or epoxy is applied.
• a melting thermoplastic layer for example polyamide or a reactive thermoset layer, e.g. B. folyesterimide or epoxy is applied.
• connection line 16 has two cores 17 and 18, each of a solid conductor 19 or 20, which is provided with an adhesive insulation 21 or 22.
• an additional layer of a melting thermoplastic or a reactive thermoset can be applied.
• a cylindrical spout 23 are the spaced wires 17; 18 embedded. The spout 23 is a pressure and moisture-proof connection with the insulation 21; 22 or the additional plastic splint applied to it.
• a bore 25 with a hanging groove 26 is formed in the housing 24 of the electrical device, which in turn can be a sensor, for example, for an anti-lock braking system or digital motor electronics.
• a sealing ring 27 is arranged in the annular groove 26.
• the grommet 23 is inserted with the connection ends 19 a and 20 a of the solid conductors 19 and 20 into the bore 25 and also surrounded by the sealing ring 27 in a pressure and moisture-tight manner. Which is through the hole 25 extending connection ends 19 a and 20 a can be connected in a manner known per se and not shown in more detail to an electrical device not shown.
• the connecting line 16 protruding from the housing 2 4 with a plastic sheath 28 surrounding the wires 17 and 18 obtains its mechanical strength against being pulled out by the connection of the spout 23 and the line sheath 28 during the encapsulation of the spout 23.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Cable Accessories (AREA)
• Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
• Connection Or Junction Boxes (AREA)
• Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6136509

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (12)

Citations (5)

Family Cites Families (5)

• 1981
  • 1981-07-09 DE DE19813127124 patent/DE3127124A1/de not_active Withdrawn
• 1982
  • 1982-06-22 EP EP82902058A patent/EP0083350B1/de not_active Expired
  • 1982-06-22 JP JP57502146A patent/JPS58501100A/ja active Granted
  • 1982-06-22 US US06/786,174 patent/US4674816A/en not_active Expired - Fee Related
  • 1982-06-22 WO PCT/DE1982/000130 patent/WO1983000263A1/en active IP Right Grant
  • 1982-06-22 DE DE8282902058T patent/DE3266369D1/de not_active Expired

Patent Citations (5)

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