Shielded plug

Abstract

The invention relates to a shielded plug / plug connector (1), in particular an HV plug, for a plug connection, comprising a contact carrier and contacts (12), in particular HV contacts, which are accommodated in the contact carrier (11) and are surrounded by a contact carrier material, wherein: the contact carrier (11) is surrounded, in particular over the entire circumference, by a shielding sleeve (13) formed from a shielding material; the contact carrier (11) and the shielding sleeve (13) can be accommodated in an outer housing (14) of the plug (1); the shielding sleeve (13) has at least one first latching means (131) and the outer housing (14) has at least one complementary first mating latching means (141) for forming a first latching connection at least for blocking a movement counter to a joining direction of the shielding sleeve (13); the shielding sleeve (13) has at least one second latching means (132) and the outer housing (14) has at least one complementary second mating latching means (142) for forming a second latching connection for blocking a rotation of the shielding sleeve (13) with respect to the outer housing (14); during assembly of the plug (1), the shielding sleeve (13) can be guided into a pre-assembly position (VS) in which the first latching means (131) at least bears against the first mating latching means (141); the shielding sleeve (13) can be guided from the pre-assembly position (VS) into a final assembly position (ES) in which the second latching connection is established; the first latching connection is already established and / or already becomes established during the guiding.

Description

[0001] Shielded connector

[0002] Description:

[0003] The invention relates to a shielded connector for a plug connection, comprising a contact carrier and contacts accommodated in the contact carrier and surrounded by a contact carrier material, as well as a shielding sleeve and an outer housing. Furthermore, the invention relates to an assembly method for the connector.

[0004] A variety of shielded connectors for plug-in connections are known from the prior art, in which the shielding plates are secured with locking tabs for fixing the shielding plates in an outer housing. These locking tabs are formed on an outer circumferential surface of the shielding plate in such a way as to provide a spring force, but have a circumferential gap. A disadvantage of this is that the circumferential gap negatively impairs the shielding effect of the shielding plate. Furthermore, securing the shielding sleeve in an outer housing using corresponding locking tabs is unsatisfactory for many applications.

[0005] The invention is therefore based on the object of overcoming the aforementioned disadvantages and providing a shielded connector which optimizes a shielding effect of a shielding plate in the region of a locking means and improves a fixation of the shielding sleeve in an outer housing.

[0006] This problem is solved by the combination of features according to patent claim 1.

[0007] According to the invention, a shielded plug, in particular an HV plug, for a plug connection, comprising a contact carrier and contacts, in particular HV contacts, accommodated in the contact carrier and surrounded by a contact carrier material, is proposed. The contact carrier is surrounded, in particular completely, by a shielding sleeve made of a shielding material. Furthermore, the contact carrier and the shielding sleeve can be accommodated in an outer housing of the plug. The shielding sleeve has at least one first locking means, and the outer housing has at least one complementary first counter-locking means for forming a first locking connection, at least for blocking movement counter to a joining direction of the shielding sleeve. Furthermore, the shielding sleeve has at least one second locking means, and the outer housing has at least one complementary second counter-locking means for forming a second locking connection for blocking rotation of the shielding sleeve with respect to the outer housing.Furthermore, during assembly of the connector, the shielding sleeve can be guided into a pre-assembly position in which the first locking means at least abuts the first counter-locking means. Furthermore, the shielding sleeve can be guided from the pre-assembly position into a final assembly position in which the second locking connection is established. In this case, the first locking connection is and / or is already established during the guiding process.

[0008] The advantage of this is that, thanks to the corresponding first and second snap-in connections, both a support function and a locking function are provided in the final assembly position. This optimizes the fixation of the shielding sleeve in the outer housing of the connector. The fixation with support function and locking function ensures that the shielding sleeve is firmly arranged in its predetermined position with respect to the outer housing and prevents any change in position under load on the connector. This improves the stability of the entire connection, especially in environments with vibrations or mechanical stress.

[0009] With regard to the features of HV connectors or HV plugs and HV contacts, HV stands for high voltage and / or high voltage, i.e., suitable for voltages in the high-voltage range. The high-voltage range in the context of the present invention refers to voltages above 100 volts.

[0010] In an advantageous embodiment, the second counter-locking means is a guide groove extending along an inner circumference of the outer housing, with a control cam for the second locking means. It is advantageous that the second locking means can be guided into the final assembly position upon rotation along the control cam.

[0011] The shielded connector is preferably designed such that the second locking means is positioned between one end of the guide groove and the control cam in the final assembly position. Furthermore, a design is advantageous in which the second locking means is formed, in particular in one piece, on a longitudinal end of the shielding sleeve.

[0012] In a further advantageous variant, the invention provides that the second locking means is a T-shaped locking tab. Preferably, a first projection of the T-shaped locking tab is bent outward in the circumferential direction of the shielding sleeve, in particular by 45° to 135°, preferably by 90°, and / or parallel to the contact surface of the control cam. This optimizes the engagement of the locking tab with the control cam.

[0013] The shielded connector according to the invention is designed in one embodiment such that a second projection of the T-shaped locking tab is bent outwards in the circumferential direction of the shielding sleeve, in particular by 5° to 45°, preferably by 15°.

[0014] It is further advantageous if the first projection of the T-shaped locking tab rests against the control cam of the second counter-locking means in the pre-assembly position.

[0015] In a preferred embodiment of the invention, the second projection of the T-shaped locking tab rests against the control cam of the second counter-locking means in the final assembly position.

[0016] In a further advantageous embodiment, the first locking means is a, in particular stamped, locking projection. Furthermore, a minimal gap is formed between a locking surface of the locking projection and the further shielding sleeve. In this embodiment, in particular, no gap is formed along a longitudinal extent of the first locking means, but exclusively along the locking surface of the first locking means for abutting against the counter-locking means. The minimal gap refers to the smallest possible gap with regard to a longitudinal extent and / or transverse extent of the gap, which is in particular 10% to 200%, preferably less than 100%, of a thickness of the shielding plate. In this way, the smallest possible gap is formed and nevertheless high push-out forces are ensured. Due to the minimal gap orMinimizing the gap improves the shield's ability to absorb and block external and internal electromagnetic waves. This optimizes the shielding, for example, with regard to electromagnetic compatibility (EMC). A small gap also reduces the likelihood of leakage of internally generated electromagnetic fields to the outside. This minimizes the risk of electromagnetic interference (EMI). Furthermore, the minimal gap improves shielding attenuation, as a small gap allows for a more even and effective distribution of the shielding attenuation along the entire shielding surface. This improves the effectiveness of the shielding in reducing electromagnetic interference and ensuring good electromagnetic compatibility. Consequently, the minimal gap only slightly negatively affects the shielding effect of the shielding sleeve.

[0017] In one embodiment of the invention, it is provided that the first counter-locking means is a guide groove for the first locking means extending along an inner circumference of the outer housing, such that the first locking connection is continuous during a movement, in particular rotation, of the shielding sleeve from the pre-assembly position into the final assembly position ES. In an advantageous variant, the guide groove tapers at least partially in the direction of rotation. In this way, the first locking connection is optimized. It is further advantageous if the first counter-locking means and / or the corresponding guide groove has a receptacle for the first locking means.

[0018] In a preferred embodiment of the invention, the first counter-locking means and the second counter-locking means extend parallel to each other. This ensures that, during rotation from the pre-assembly position to the final assembly position, the first and second locking means are guided by the corresponding counter-locking means and, if necessary, block.

[0019] Preferably, the shielded connector is designed such that the outer housing has a stop for a first longitudinal end of the shielding sleeve, seen in the joining direction.

[0020] In a further advantageous embodiment of the invention, at least one spring arm, preferably a plurality of spring arms, is formed on a second longitudinal end of the shielding sleeve, viewed in the joining direction, which spring arm is bent in the joining direction, wherein in the pre-assembly position and / or the final assembly position, a free end of the at least one spring arm is arranged between the shielding sleeve and the outer housing and / or the free end of the at least one spring arm rests against a second stop of the outer housing. In this way, the fixation of the shielding sleeve in the outer housing is further improved. Furthermore, the outer housing prevents an incorrectly bent spring arm from protruding too far from the shielding sleeve.

[0021] Furthermore, an embodiment is advantageous in which the contact carrier has a contact carrier stop for the shielding sleeve, in particular a projection which runs completely around the contact carrier, preferably on an outer surface of the contact carrier, and against which the shielding sleeve rests at least during joining. In one embodiment, the contact carrier projection rests against a folded area of ​​the bent spring arm at least during joining of the contact carrier together with the shielding sleeve into the outer housing in the pre-assembly position and / or during movement of the shielding sleeve from the pre-assembly position to the final assembly position. According to the invention, an assembly method for a shielded plug according to the above disclosure is further proposed, in which joining and / or insertion of the shielding sleeve, in particular together with the contact carrier, takes place in the pre-assembly position, in which the first latching means at least rests against the first counter-latching means.In addition, the shielding sleeve is moved and / or rotated from the pre-assembly position to the final assembly position, establishing the second snap-in connection. The first snap-in connection is retained or maintained and / or established during the movement of the shielding sleeve to the final assembly position.

[0022] The features disclosed above can be combined as desired, as long as this is technically possible and they do not contradict each other.

[0023] Other advantageous developments of the invention are characterized in the subclaims or are presented in more detail below, together with the description of the preferred embodiment of the invention, with reference to the figures. They show:

[0024] Fig. 1a is a perspective view of a shielding sleeve of a plug;

[0025] Fig. 1 b a sectional view of the shielding sleeve;

[0026] Fig. 2 is a perspective view of an outer housing of the plug;

[0027] Fig. 3 is a perspective view of the plug;

[0028] Fig. 4a is a perspective view of the connector in a pre-assembly position;

[0029] Fig. 4b a sectional view of the connector in the pre-assembly position;

[0030] Fig. 4c shows a further sectional view of the connector in the pre-assembly position; Fig. 5a shows a perspective view of the connector in a pre-assembly position;

[0031] Fig. 5b a sectional view of the connector in the pre-assembly position;

[0032] Fig. 5c shows another sectional view of the connector in the pre-assembly position.

[0033] The figures are schematic examples. Identical reference numerals in the figures indicate identical functional and / or structural features.

[0034] Figure 1a shows a perspective view of a shielding sleeve 13 of a shielded HV connector 1 for a plug connection 1 and Figure 1b shows a sectional view of the shielding sleeve 13.

[0035] The shielding sleeve 13 has at least one first locking means 131 for forming a first locking connection at least for blocking movement counter to a joining direction of the shielding sleeve 13 with respect to an outer housing 14. The first locking means 131 is a stamped locking projection, in which a minimal gap 1311 is formed only between a locking surface of the locking projection and the further shielding sleeve 13.

[0036] In addition, the shielding sleeve 13 has at least one second locking means 132 for forming a second locking connection for blocking rotation of the shielding sleeve 13 with respect to the outer housing 14. The second locking means 132 is formed integrally on a longitudinal second end 134 of the shielding sleeve 13. Furthermore, the second locking means 132 is a T-shaped locking tab. A first projection 1321 of the T-shaped locking tab is bent outwards by 90° in the circumferential direction of the shielding sleeve 13. Furthermore, a second projection 1322 of the T-shaped locking tab is bent outwards by 15° in the circumferential direction of the shielding sleeve 13. Furthermore, a plurality of spring arms 1341, which are bent in the joining direction, are formed on a second longitudinal end 134 of the shielding sleeve 13, viewed in the joining direction.

[0037] Figure 2 shows a perspective view of an outer housing 14 of the plug 1 for receiving the shielding sleeve 13 shown in Figures 1 a to 1 c.

[0038] The outer housing 14 has at least one complementary first counter-locking means 141 for forming the first locking connection, at least for blocking movement counter to a joining direction of the shielding sleeve 13. The first counter-locking means 141 is a guide groove for the first locking means 131 extending along an inner circumference of the outer housing 14, such that the first locking connection is continuous during a movement, in particular rotation, of the shielding sleeve 13 from a pre-assembly position VS into a final assembly position ES. Furthermore, the guide groove tapers in sections in the direction of rotation. Furthermore, the first counter-locking means 141 has a receptacle for the first locking means 131.

[0039] In addition, the outer housing 14 has at least one complementary second counter-locking means 142 for forming the second locking connection for blocking rotation of the shielding sleeve 13 with respect to the outer housing 14. The second counter-locking means 142 is a guide groove and / or recess extending along an inner circumference of the outer housing with a control cam 143 for the second locking means 132.

[0040] Furthermore, the first counter-locking means 141 and the second counter-locking means 142 extend parallel to one another. The outer housing 14 additionally has a stop 144 for a first longitudinal end 133 of the shielding sleeve 13, viewed in the joining direction. Figure 3 shows a perspective view of the shielded HV connector 1 with the shielding sleeve 13 shown in Figures 1a and b and the outer housing 14 shown in Figure 2. Figure 3 shows the connector 1 in a state before the shielding sleeve 13 is inserted into the outer housing 14.

[0041] The shielded HV connector 1 for a plug connection comprises a contact carrier 11 and HV contacts accommodated in the contact carrier 11 and surrounded by a contact carrier material. Furthermore, the contact carrier 11 is fully surrounded by the shielding sleeve 13 made of a shielding material. Furthermore, the contact carrier 11 and the shielding sleeve 13 can be accommodated in the outer housing 14 of the connector 1. The contact carrier 11 has a contact carrier stop 111 for the shielding sleeve 13. The contact carrier stop 111 is a projection that completely surrounds an outer surface of the contact carrier 11, against which the shielding sleeve 13 rests, at least when the shielding sleeve 13 is inserted into the outer housing 14. The contact carrier stop 111 rests against a folded area of ​​the bent spring arms 1341 of the shielding sleeve 13.

[0042] Figure 4a shows a perspective view of the connector 1 shown in Figure 3 in a pre-assembly position VS, Figure 4b shows a sectional view of the connector 1 in the pre-assembly position VS, and Figure 4c shows a further sectional view of the connector 1 in the pre-assembly position VS. The shielding sleeve 13 is arranged together with the contact carrier 12 in the pre-assembly position VS, in which the first locking means 131 at least abuts the first counter-locking means 141, in particular exclusively on a circumferential surface of the counter-locking means 141.

[0043] In the pre-assembly position VS, the first projection 1321 of the T-shaped locking tab of the shielding sleeve 13 rests against the control cam 143 of the second counter-locking means 142. Furthermore, the first projection 1321 of the T-shaped locking tab is bent outwards by 90° in the circumferential direction of the shielding sleeve 13 and extends parallel to a contact surface of the control cam 143. Furthermore, at least in the pre-assembly position VS and / or a final assembly position ES, a free end of the at least one spring arm 1341 is arranged between the shielding sleeve 13 and the outer housing 14 and / or rests against the outer housing 14 under spring force and / or the free end of the at least one spring arm 1341 rests against a second stop 145 of the outer housing 14.

[0044] Figure 5a shows a perspective view of the connector 1 shown in Figure 3 in a final assembly position ES, Figure 5b a sectional view of the connector 1 in the final assembly position ES, and Figure 5c a further sectional view of the connector 1 in the final assembly position ES. Figures 5a to 5c show the shielded connector 1 after the shielding sleeve 13 has been moved and / or rotated into the final assembly position VS, establishing the second snap-in connection. During the movement and / or rotation into the final assembly position ES, the first snap-in connection of the shielding sleeve 13 is retained, or the first snap-in connection is established at least when the shielding sleeve 13 is moved into the final assembly position ES.

[0045] Accordingly, Figures 5a to 5c show a shielded connector 1 in which the shielding sleeve 13 can be guided from the pre-assembly position VS into a final assembly position ES in which the second snap-in connection is established, and the first snap-in connection is and / or is already established during the guiding process.

[0046] The first counter-locking means 141 is a guide groove for the first locking means 131 extending along an inner circumference of the outer housing 14, such that the first locking connection is continuous during a movement and / or rotation of the shielding sleeve 13 from the pre-assembly position VS into the final assembly position ES. Furthermore, the second locking means 132 is locked in the final assembly position ES between one end of the guide groove and / or recess and the control cam 143. Furthermore, the second projection 1322 of the T-shaped locking tab rests against the control cam of the second counter-locking means 142 in the final assembly position ES.

[0047] The invention is not limited to the preferred embodiments described above. Rather, a number of variants are conceivable that utilize the presented solution even in fundamentally different embodiments.

Claims

Patent claims 1. Shielded plug / connector (1), in particular an HV plug, for a plug connection, comprising a contact carrier and contacts (12), in particular HV contacts, accommodated in the contact carrier (11) and surrounded by a contact carrier material, wherein the contact carrier (11) is surrounded, in particular completely, by a shielding sleeve (13) made of a shielding material, wherein the contact carrier (11) and the shielding sleeve (13) can be accommodated in an outer housing (14) of the plug (1), wherein the shielding sleeve (13) has at least one first locking means (131) and the outer housing (14) has at least one complementary first counter-locking means (141) for forming a first locking connection at least for blocking a movement counter to a joining direction of the shielding sleeve (13),wherein the shielding sleeve (13) has at least one second locking means (132) and the outer housing (14) has at least one complementary second counter-locking means (142) for forming a second locking connection for blocking rotation of the shielding sleeve (13) with respect to the outer housing (14), wherein the shielding sleeve (13) can be guided into a pre-assembly position (VS) during assembly of the plug (1), in which the first locking means (131) at least bears against the first counter-locking means (141), wherein the shielding sleeve (13) can be guided from the pre-assembly position (VS) into a final assembly position (ES) in which the second locking connection is established, wherein the first locking connection is already established during the guiding process.

2. Shielded connector (1) according to claim 1, wherein the second counter-locking means (142) is a guide groove and / or recess extending along an inner circumference of the outer housing with a control curve (143) for the second locking means (132).

3. Shielded connector (1) according to claim 2, wherein the second locking means (132) is rusted in the final assembly position (ES) between one end of the guide groove and / or recess and the control cam (143).

4. Shielded plug (1) according to one of claims 1 to 3, wherein the second locking means (132) is formed, in particular in one piece, on a longitudinal end of the shielding sleeve (13).

5. Shielded connector (1) according to one of the preceding claims, the second locking means (132) is a T-shaped locking tab.

6. Shielded plug (1) according to claim 5, wherein a first projection (1321) of the T-shaped locking tab is bent outwards in the circumferential direction of the shielding sleeve (13), in particular by 45° to 135°, preferably by 90° and / or parallel to the contact surface of the control groove.

7. Shielded plug (1) according to claim 5 or 6, wherein a second projection (1322) of the T-shaped locking tab is bent outwards in the circumferential direction of the shielding sleeve (13), in particular by 5° to 45°, preferably by 15°.

8. Shielded connector (1) according to claims 6 and 2, wherein the first projection (1321) of the T-shaped locking tab rests against the control cam of the second anti-rust means (142) in the pre-assembly position (VS).

9. Shielded connector (1) according to claims 7 and 3, wherein the second projection (1322) of the T-shaped locking tab rests against the control cam of the second counter-locking means (142) in the final assembly position (ES).

10. Shielded plug (1) according to one of the preceding claims, wherein the first locking means (131) is a, in particular punched, locking projection, wherein a minimal gap (1311) is formed between a locking surface of the locking projection and the further shielding sleeve (13).

11. Shielded connector (1) according to one of the preceding claims, wherein the first counter-locking means (141) is a guide groove for the first locking means (131) extending along an inner circumference of the outer housing (14), such that the first locking connection is continuous upon movement, in particular rotation, of the shielding sleeve (13) from the pre-assembly position (VS) into the final assembly position (ES).

12. Shielded connector (1) according to claims 11 and 2, wherein the first counter-locking means (141) and the second counter-locking means (142) extend parallel to each other.

13. Shielded connector (1) according to one of the preceding claims, wherein the outer housing (14) has a stop (144) for a first longitudinal end (133) of the shielding sleeve (13) seen in the joining direction.

14. Shielded plug (1) according to one of the preceding claims, wherein at least one spring arm (1341), preferably a plurality of spring arms (1341), is formed on a second longitudinal end (134) of the shielding sleeve (13) seen in the joining direction, which spring arms are Joining direction are bent, wherein in the pre-assembly position (VS) and / or the final assembly position (ES) a free end of the at least one spring arm (1341) is arranged between the shielding sleeve (13) and the outer housing (14) and / or the free end of the at least one spring arm (1341) is at a second stop (145) of the outer casing.

15. Assembly method of a shielded plug (1) according to one of the preceding claims, which comprises the steps: a. joining and / or inserting the shielding sleeve (13), in particular together with the contact carrier (12), into the pre-assembly position (VS), in which the first locking means (131) at least bears against the first counter-locking means (141); b. moving and / or rotating the shielding sleeve (13) from the pre-assembly position (VS) into the final assembly position (VS) while establishing the second locking connection; wherein the first locking connection is established at least when the shielding sleeve (13) is moved into the final assembly position (ES).

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