阅读说明：本技术 在制造插拔连接器的情况下在注塑包封过程期间触点腔相对于注塑材料（塑料）的改进密封 (Improved sealing of a contact chamber against an injection-molded material (plastic) during an injection molding process in the production of a plug connector ) 是由 G·杰格 L·托马西尼 于 2019-07-31 设计创作，主要内容包括：本发明涉及一种插拔连接器,其包括由塑料注塑成型的触点承载件(1),该触点承载件具有用于分别容纳一个触点配对件的触点腔,此外设置有分别作用到至少一个线缆(5)的外套上的密封元件(2),所述线缆从插拔连接器中导出并且其电导体的端部与配设的触点配对件相连接,其中,密封元件(2)由采用注塑工艺加工的塑料与触点承载件(1)共同构成,并且所述密封元件(2)在至少一个额定断裂部位、优选地正好两个额定断裂部位(10)上直接喷射在触点承载件(1)上。(The invention relates to a plug connector comprising a plastic injection-molded contact carrier (1) having contact chambers for receiving in each case one contact partner, wherein sealing elements (2) are provided which act in each case on the outer jacket of at least one cable (5) which is guided out of the plug connector and the ends of the electrical conductors of which are connected to the associated contact partner, wherein the sealing elements (2) are formed by plastic which is produced by an injection-molding process together with the contact carrier (1), and wherein the sealing elements (2) are directly sprayed on the contact carrier (1) at least one predetermined breaking point, preferably exactly two predetermined breaking points (10).)

1. Plug connector comprising a plastic injection-molded contact carrier (1) having contact chambers for receiving in each case one contact partner, and further comprising a sealing element (2) which acts in each case on the outer jacket of at least one cable (5) which is guided out of the plug connector and the ends of the electrical conductors of which are connected to a mating contact partner, wherein the sealing element (2) is formed from plastic which is produced by an injection-molding process together with the contact carrier (1), characterized in that the sealing element (2) is sprayed directly onto the contact carrier (1) at least one, preferably exactly two, rated breaking points (10).

2. The plug connector according to claim 1, characterized in that the sealing element (2) has a fastening part (3) arranged on the contact carrier (1) and a latching part (4) which is articulated via the at least one rated breaking point (10).

3. The plug connector according to claim 1 or 2, characterized in that two predetermined breaking points (10) are arranged on both sides between the fastening part (3) and the latching part (4).

4. The plug connector according to one of claims 1 to 3, characterized in that the rated breaking point (10) is oriented in the longitudinal direction of the contact carrier (1) and the latching element (4) can be moved by a transverse movement toward the contact carrier (1) in order to seal the at least one cable (5).

5. The plug connector according to one of the preceding claims, characterized in that the latching element (4) has lateral webs (11) which are assigned to recesses (12) on the fastening element (3).

6. The plug connector according to one of the preceding claims, characterized in that a latching hook and/or a latching hole is provided on each tab (11) and in the region of each recess (12).

7. The plug connector according to one of the preceding claims, characterized in that projections (7) are provided on the fixing part (3) and the latching part (4), preferably on the outer surface thereof, which projections serve as guide elements for an injection-molded sealing cap (9) or as latching bodies for an opening (8) in the sealing cap (9).

8. The plug connector according to one of the preceding claims, characterized in that the projection (7) has a circumferential sealing lip (13).

9. Method for producing a plug connector, preferably according to one of the preceding claims, comprising a plastic injection-molded contact carrier (1) having contact chambers for receiving in each case one contact partner, furthermore a sealing element (2) being provided which acts in each case on the outer jacket of at least one cable (5) which is led out of the plug connector and the ends of the electrical conductors of which are connected to a mating contact partner, wherein the sealing element (2) is likewise produced from plastic by means of an injection-molding process and is attached to the contact carrier (1) after its production is complete, characterized in that the sealing element (2) is directly sprayed onto the contact carrier (1) at least one rated breaking point, preferably exactly two rated breaking points (10), wherein the sealing element (2) rests against the outer jacket of the cable (5) after the predetermined breaking point (10) has been broken.

Technical Field

The invention relates to a plug connector and a method for producing such a plug connector, comprising a plastic injection-molded contact carrier having contact chambers for receiving in each case one contact partner, and further comprising sealing elements which act in each case on the outer jacket of at least one cable which is guided out of the plug connector and the ends of the electrical conductors of which are connected to the associated contact partner, wherein the sealing elements are formed by plastic which is produced by an injection molding process together with the contact carrier.

Background

A plug connector of the same type is known from DE 102011055215 a 1. The plug connector comprises a plastic carrier which is injection-molded from plastic and has contact chambers for receiving the contact partners, and sealing elements which act on the outer jacket of at least one cable, which is guided out of the plug connector and the ends of the electrical conductors of which are connected to the associated contact partners, are provided, wherein the sealing elements are formed from plastic which is produced by an injection-molding process together with the contact carrier. Likewise disclosed is a method for producing a plug connector comprising a plastic injection-molded contact carrier having contact chambers for receiving contact partners, in addition to sealing elements which act on the outer jacket of at least one cable, which is guided out of the plug connector and the ends of the electrical conductors of which are connected to mating contact partners, wherein the sealing elements are likewise produced from plastic by an injection-molding process and are attached to the contact carrier after production thereof. The joining connection on the sealing element is embodied in such a way that the movable part of the sealing element protrudes laterally, which can lead to damage during packaging, during transport and during handling.

Disclosure of Invention

The object of the invention is to improve a plug connector of the same type and a method for producing a plug connector of this type in such a way that the disadvantages mentioned are avoided.

The object of the invention is achieved by the features of the two independent claims 1 and 9.

After the contact carrier has been provided with a corresponding number of contact partners, which have been inserted into corresponding contact chambers in its contact carrier, the at least one predetermined breaking point can be broken in a simple manner in order to achieve a tight abutment of the sealing element, which previously did not abut against the jacket of the cable, in order thereby to prevent the spray used for producing the housing surrounding the contact partners from penetrating into the interior region of the contact chambers of the contact carrier. The contact carrier is thus provided with a contact counterpart arranged at the end of the cable, that is to say at the end of the electrical conductor of the cable, and then the at least one rated breaking point, preferably exactly two rated breaking points, are broken off, so that the sealing element, together with the geometry of the associated contact counterpart, seals the respective contact chamber in such a way that it is avoided: during injection molding of the housing of the plug connector, the injection material enters the corresponding contact chamber. This can be achieved by a force-locking and/or form-locking connection, for example a latching connection. The provision of the sealing element on the contact carrier via the at least one predetermined breaking point has the following advantages: the sealing element is available for the subsequent injection molding process and is not lost or forgotten.

In a further embodiment of the invention, it is provided that the sealing element has a fastening part arranged on the contact carrier and a latching part which is articulated via the at least one predetermined breaking point. Two predetermined breaking points are preferably provided on both sides between the fastening part and the latching part. The predetermined breaking point is oriented in the longitudinal direction of the plug connector such that the latching element can be moved by a transverse movement toward the plug connector in order to seal the at least one cable. The latching or fixing part has lateral webs which correspond to grooves on the fixing or latching part, so that the parts are thereby guided relative to one another. In the region of the webs and the recesses, latching elements are provided, which establish a positive-locking connection of the latching elements to the fastening element.

Furthermore, projections are provided on the fastening part and the latching part, preferably on their outer surfaces, which projections can be snapped into the respective openings in the sealing cover. The projections can also serve as guide elements for the injection-molded sealing cap. In this way, a form-locking fixation of the sealing cover which can be arranged above the end of the contact carrier is achieved. A circumferential sealing lip can be provided on the projection in order to improve the sealing of the sealing cover on the projection.

Drawings

An embodiment of the invention is shown in simplified form in the drawings. The attached drawings are as follows:

fig. 1 shows three schematic views of a contact carrier, wherein, in the left-hand schematic view, a latching part is fixed via a predetermined breaking point, in the middle schematic view, the latching part is connected to a fixing part of a sealing element, and in the right-hand schematic view the contact carrier is shown on an enlarged scale (top view corresponding to the middle schematic view),

figures 2 and 3 show the left and middle schematic views of figure 1 on an enlarged scale,

figure 4 shows a contact carrier with two connected cables and a protective sleeve,

fig. 5 shows a cable-connected contact carrier with a protective sleeve and an additional sealing cap, and

fig. 6 shows a top view of the contact carrier according to the right-hand side illustration of fig. 1 on an enlarged scale.

Detailed Description

In fig. 1 to 6 (shown in general detail), a contact carrier with a sealing element 2 is denoted by reference numeral 1. The sealing element 2 comprises in particular a fastening part 3 fastened to the sealing element and a latching part 4 fastened to the fastening part 3 or to the sealing element 2 by means of a predetermined breaking point 10. A recess 12 is formed in the fastening part 3 of the sealing element 2, next to the predetermined breaking point 10. The latching part 4 has a web 11 assigned to a groove 12. If the latching element 4 is moved in the direction of the fastening element 3 according to fig. 2 into the position according to the illustration of fig. 3, the predetermined breaking point 10 is first released and the latching element 4 is moved in the direction of the fastening element 3 under the guidance of the webs 11 and the grooves 12 and is positively connected to the fastening element.

If the cable 5 is inserted into the contact carrier 1 or the sealing element 2 as shown in fig. 4, the jacket of the cable 5 is clamped and sealed between the fixing part 3 and the latching part 4.

Additional sealing of the plug-and-pull connector 1, the sealing element 2 and the cable 5 region is achieved by a sealing cap 9 which can be injection-molded onto it or snapped in by means of an opening 8 in the projection 7. A sealing lip 13 on the boss 7 improves the seal. The projection 7 is arranged on the outer wall of the fixing part 3 and the latching part 4 in the region of the sealing element 2.

List of reference numerals

1 contact carrier

2 sealing element

3 fixing parts

4-locking part

5 Cable

6 protective sleeve

7 raised part

8 opening

9 sealing cover

10 rated fracture site

11 contact piece

12 grooves

13 sealing lip