WO2013034286A1

WO2013034286A1 - Scoop-proof plug connector

Info

Publication number: WO2013034286A1
Application number: PCT/EP2012/003706
Authority: WO
Inventors: Ernst Michael Carle
Original assignee: Amphenol-Tuchel Electronics Gmbh
Priority date: 2011-09-09
Filing date: 2012-09-05
Publication date: 2013-03-14
Also published as: JP6329071B2; EP2754211B1; EP2754211A1; JP2014526772A; EP2754211B9; DE102011113062A1; CN103782456A

Abstract

The invention relates to a round scoop-proof plug connector comprising a socket with a socket contact body with coax socket contacts, comprising a socket sleeve which receives the socket contact body, said socket contact body having multiple coding recesses, and comprising a plug which has a multipolar pin body with coax pin contacts, said pin body extending into the plug-side receiving space of the plug sleeve which surrounds the plug. The plug sleeve forms at least three coding ribs (or coding projections), which correspond to the coding recesses, on the plug sleeve inner circumference in the receiving space of the plug. Each of the at least three coding ribs forms a guiding surface at the plug-side end of the coding ribs, said guiding surfaces together forming a bearing surface for the socket sleeve end face which is designed as a counter bearing. The guiding surfaces span a common plane such that the plug end face rests on the guiding surfaces when plugged together with the socket and the plug can be brought into the plug orientation in which the plug can be connected to the socket by rotating the end face on the guiding surfaces, wherein the coding ribs can engage into the corresponding coding recesses.

Description

description

Contact protected connector

The present invention relates to a contact-protected connector according to the preamble of claim 1.

The present invention particularly relates to a contact protected coaxial connector. Furthermore, the invention relates to a round connector and a coaxial circular connector forming this as well as a coaxial cable socket for receiving the circular connector.

In various applications, and in particular in Koaxialsteckverbin- the there is a special need to protect the contacts, here the coaxial contacts of the connector from damage.

In addition to coaxial connectors, connector-protected connector systems are already being used in the field of automotive applications and, in particular, in the field of airbag connectors.

Thus, EP 1 184 232 A2 shows a contact-protected connector system comprising a socket with contacts to be protected and a plug-in connector in the socket, wherein the contact protection is determined by a geometric condition on the height of the connector.

Another embodiment of a contact-protected connector discloses the US 6,402,540 B1. There also a contact protection against shovel-like immersion is shown, which is achieved via inserted into the contact socket sufficiently high coding ribs. The length of the contacts is tuned to the length of the contact socket so that even when scoop-like immersion of the connector into the socket they are not affected and thus can not be damaged.

In multi-pole coaxial connectors, which are designed in particular as designed with respect to the central center axis symmetrical multipole connector, there is a particular need in terms of contact protection and security.

Coaxial contacts are known to be sensitive to mechanical damage and require special fitting accuracy when coaxial connectors and coaxial connectors are brought into contact with each other. In so-called ohm connectors, however, there is a risk that connector and socket are pushed together when mating in an unscheduled position possibly in this position, the connector also still rotates relative to the socket and thus damage the coaxial contacts.

A particular difficulty arises in cases when the connector has to be inserted so to speak "blind" and the operator has to insert the plug so to speak in a hidden position in the corresponding socket.

In practice arise in these cases frequent disturbances and damage of coaxial contacts.

A further problem is that, in particular with four-pole, symmetrically constructed, in particular symmetrically oriented with respect to the central plug-axis plugging geometry could be plugged in circular connectors in four mutually different positions. Ie. In addition to the damage to the coaxial contacts, it is also necessary to contact the plug-in connectors in a corresponding orientation, specifically in the intended orientation.

Object of the present invention is therefore to provide a connector system, in particular a connector system with coaxial contacts, which can be securely plugged together in the correct orientation and the mating and connecting the connector damage or even contact of the contacts is prevented.

In particular, the object is to provide a connector from male and female connectors mentioned above, which has a seal, so that the plug is sealed in the inserted state sufficiently against environmental influences.

This object is achieved in general with a connector according to the features of claim 1, wherein preferred embodiments of the invention are claimed in the further claims.

Embodiments of the invention will be described with reference to the drawing.

In the drawing shows:

Fig. 1 shows a section through a connector according to the invention

2 shows a section through a socket body of the coaxial

Cable connector;

Fig. 3 is a perspective top view of the socket body in Fig. 2 from the right, i. on the mating side of the socket body;

Fig. 4A is a side view of a coaxial female contact element;

Fig. 4B is a side view of a coaxial pin contact element;

5 shows a section through a two-part pin body in its assembled state of two parts. Fig. 6 is a perspective view of the pen body of Figure 5 from its mating side.

7 shows a section through the coaxial circular connector, similar to FIG.

1, but without the associated coaxial cable socket, wherein the pin body according to Figures 5 and 6, a plug sleeve is placed, which in turn carries a locking nut.

8 shows a perspective view of the coaxial circular connector of FIG. 7, specifically from the plug-in side located on the left in FIG. 7;

Fig. 9 is a schematic plan view of a stop surface 29 of the

The socket body;

10 is a schematic partial front view of the plug-in sleeve 200;

Fig. 1 1, the view as shown in Figure 2 but adjacent to the coaxial circular connector of FIG. 7;

Fig. 1 2, the view as shown in Figure 7 but adjacent to the socket body of Figure 2.

Fig. 1 3-15 views representing different insertion depths, wherein the state of FIG. 1 5 corresponds to the state of FIG. 1.

The drawing shows an exemplary embodiment of a coaxial circular connector 10 according to the invention with integrated coaxial or coaxial contact elements 1 3, 14. The coaxial circular connector 10 has a coaxial cable socket according to the invention (short: socket) 11 and a coaxial circular connector (short: plug connector or simply plug) 12 according to the invention.

In the following also the terms socket 1 0 and connectors or simply "plug" 1 2 are used.

In the socket 1 1 more coax socket contact elements 14 are arranged. In the connector 12 a plurality of coax - pin contact elements 13 are arranged. Each female contact element 14 ends plugged in a female sleeve 64 which surrounds a female contact 164. Similarly, each pin contact element 163 terminates plug-in in a pin sleeve 63 which surrounds a pin contact 63. The inner diameter of the pin sleeve 63 is slightly smaller than the inner diameter of the sleeve sleeve 64, so that during the insertion process, the pin sleeve 63 can be inserted into the sleeve sleeve 64 contacting. The socket contact 164 has an opening into which the pin contact element can be inserted in contact.

As noted in the introduction, the inventive design of the cable bushing 1 1 and the connector 12 achieved that even with the use of multiple coax contact elements 13, 14, in particular in the connectors according to DIN IEC 61076_2_106 damage to the Koax Kontak- te, d .h. Coax socket contacts 164 and the coax pin contact 164 is excluded.

The bushing 1 The bushing 1 1 essentially has the following: a preferably one-piece bushing body 1 5, a bushing bushing (bushing bushing) 1 7 receiving the bushing body 1 5 and fastening means for fastening the bushing body 1 5 to the bushing screw bushing 1 7. a) The socket body 15

The socket body 1 5 is - see. Figure 2 - elongated and has substantially the shape of a circular cylinder with a longitudinal axis. For example, four identical longitudinal bores 20, 21, 22, 23, each of which serves to receive one of the coax female contact elements 14, are formed in the socket body 1 5, which is preferably made of plastic, running parallel to the longitudinal axis α. The socket body 1 5 forms the plug side, a preferably horizontal and perpendicular to the insertion direction stop surface or Sliding surface 29, for the plug 12 and preferably for a still to be described plug end face 90 of a plug or socket 200. The sliding or abutment surface 29 ie the plug-side end face of the socket body 15 is cut by the Kodierausnehmungen 35 to 39.

Each of the longitudinal bores 20-23 forms a plug-side arranged plug-in opening 24 and opposite thereto a connection opening 25th

Each of the longitudinal bores 20-23 has different diameter hole sections A1, A2 and A3. The bore portion A3 has the largest diameter D3. The bore portion A1 has a slightly smaller diameter D1 compared to D4 and the bore portion A2 has a diameter D2 which lies between the diameters D1 and D3.

At the transition from the bore section A1 with D1 to the section A2 with the smaller diameter D2, an annular stop surface 27 is formed against which a female contact element 14 is applied. The socket body 15 forms on its outer circumference three sections L1 to L3, namely a middle section L1 which separates the terminal section L2 from the plug section L3. All sections L1-L3 essentially have a circular cylinder surface. All sections L1-L3 are cut through by a longitudinal groove 31 extending over the entire length of the socket body 15, as can be seen in FIG.

The outer diameters of sections L1 and L3 are the same. The section L1 has a larger diameter than L2, L3 and forms an annular projection 30. Around the circumference of the longitudinal section L3, in addition to the groove 31, a plurality of coding means in the form of coding recesses 35-39 are provided. The coding recesses 35-39 all extend parallel to the longitudinal axis α of the socket body 15 up to a ring-shaped end face 310 formed by the annular projection 30. The individual coding elements Sections 35-39 are distributed around the circumference of section L3 and preferably have different shapes. The coding recess 35 forms a circular segment in cross section and the coding recesses 36, 37 and 39 are radial sectors in cross section, which preferably have different lengths extending in the circumferential direction. b) The bushing sleeve 17

The bushing sleeve 17 (see Figure 1) is preferably made of metal and is attached to the bushing body 1 5. The bushing sleeve 17 has a plug 12 indicative to the end of contact 1 71 and opposite to a terminal end 1 72nd

The bushing 17 passing through the hole 1 74 has - see. Fig. 1. - At least three different diameters, so that an end face or end stop surface 31 0 is formed. Further, at a transition from a slightly larger diameter near the terminal end 172 to a slightly smaller diameter in the direction of the contact end 171, a stop surface 1 73 for an end face or end stop surface 31 0 of Buchse body 1 5 formed.

The socket body 1 5 is rotatably mounted in the position shown in Fig. 1 in the serving for fastening with plug 1 2 Buchsenschraubhülse 1 7. The Buchsenschraubhülse 1 7 has adjacent to its contact end 1 71 a Innengenwinde 1 29. At its contact end 1 71 the Buchsenschraubhülse 1 7 also forms a bead 44. The internal thread 1 29 extends in the region of an inner surface 45 of the female sleeve 1 7. The female contact elements 14th

The coax - female contact element 14 is a total of a preferably made of metal tubular structure which has five sections with the Part has different diameters. The connecting end 143 forming portion F1 has the largest diameter K1, the subsequent section F2 has a diameter K2 similar to the diameter K1. The subsequent to the portion F2 F3 section has a diameter K3 is smaller than the diameter of K2 and the subsequent waste ^■ F4 section has a diameter K4 is smaller than the diameter K3. The smallest diameter portion F4 forms on the outer circumference elastic locking arms 140 made of the material forming the portion F4. Finally, section F5 has a diameter K5 slightly larger than K4 and further forms a contact end 142 of the female contact element 14. At the transition from section F2 to section F3 a stop surface 144 is formed, which, compare Figure 2, when replacing the contact element 14 in the Longitudinal bore 20 comes to the stop surface 27 to the stop.

Within the socket sleeve 64, the tubular body of the female contact element 14, ends the contact socket 320 seen in Figure 3 which is surrounded by a contact wall 141 in the section F5. The connector 12

The connector (plug) 12 has:

a plug or plug sleeve 200 having a cavity 201 for receiving a pen body 16; and

a connecting or fastening sleeve 18, preferably a threaded sleeve, which surrounds the plug-in sleeve 200.

The threaded sleeve 18 The threaded sleeve 18 has two sections V1 and V2. The portion V1 has a smaller diameter than the portion V2, so that a stepped cavity or hole 201 is formed, in which the socket 200 is seated. The Schraubverriegelungshülse 18 forms for receiving the receptacle 200th a stepped cavity or bore 301, wherein the diameter of the cavity 301 in the portion V1 is smaller than in the portion V2. The plug-in sleeve 200 accordingly has a smaller outer diameter in the region of the bore in the section V1 and a larger diameter in the section V2.

In section V1, the screw sleeve 1 80 has an external thread 321, which can be screwed into a plug-in internal thread of the bushing screw sleeve 17.

The wall thickness of the preferably made of metal threaded sleeve 1 8 is substantially the same in the two sections V1 and V2, but the section V1 is arranged offset radially inwardly relative to the section V2. On the outer periphery of the locking sleeve 1 8, an outer periphery 321 is formed in areas of V1. On the outer circumference of the threaded sleeve 200, the connecting sleeve 1 8 is rotatably arranged with a small axial play.

The plug-in sleeve 200

The plug-in sleeve 200 is preferably made of metal and has (see Figures 7 and 8) on its inner circumference in a radial position an axially extending rib 70 which extends over almost the entire length of the sleeve 200 from the contact side end 86 to the terminal side end 87. This rib 70 engages with a groove 60 formed in the two-part pin body 16 so that the pin body 16 is not substantially rotatable relative to the socket 200.

The plug-in sleeve 200 has (see FIG. 1) two plug-in sleeve sections S1 and S2. The section S 1 has a smaller outer diameter than the section S2. The circular cylindrical inner surface of the portion S1 has a smaller inner diameter than the circular cylindrical inner surface of the portion S2. As a result, at the transition from the section S 1 to the section S2 a (Figure 7) contact surface 80 for a plug-side end face 56 of the pin body 15 is formed

The plug sleeve 200 forms at its contact side end 86 coding elements preferably in the form of Kodiervorsprüngen 76-79 which protrude from the inner wall of the sleeve 200 radially inwardly and are intended to come with the Kodierausnehmungen 35-39 of the female body 15 into engagement. Accordingly, the coding protrusions 76-79 and also the coding portion 71 formed by the rib portion 71 have cross-sectional shapes complementary to the respective cross-sectional shapes of the associated coding recesses 35-39. The coding projections 71 and 76-79 preferably extend in the axial direction only about a third of the length of the bore 201 of the receptacle 200. It should be noted that at the contact side end 86 of the connector sleeve 200, this forms a plug sleeve end face 97, which has a mating face 90 and guide surfaces 73 has, which latter are set back slightly opposite the plug end face 90. The connector sleeve 18 is rotatable on the connector sleeve 200 and slightly displaced back and forth but not removable mounted.

The two-part pin body 1 6 is shown in detail in Figure 6 in section and in a perspective view in Figure 7. The pin body 16 has 4 tubular longitudinal noses, each in the formed by the socket body 15 holes 20 in consequence of their slightly smaller Outside diameter fit.

Within cavities 245 of the pen body, the coax pin contact elements 84 are arranged.

In detail, the pin body 16 consists of a pin body connection part 51 and a pin body plug part 52. The connection part 51 and the plug part 52 are mit- locked each other. For this purpose, connector-side and plug-part-side locking elements 158, 600 are used.

By exact guidance of the contact elements 14, 84, the invention achieves precise contact of the coaxial socket contacts 164 and the coax pin contacts 163. Instead of a coding nose with associated coding recess, the invention provides several, preferably five, coding elements which are also of different design. The coding elements provided on the strip side are set back somewhat, the coaxial contacts being positioned so that they do not undergo any damage during the rotary movement.

The coaxial round plug connection 10 according to the invention is achieved in that the plug connector 12 is placed on the cable bushing 1 1, the lying in a plane (dashed in Filo and 73), formed by the plug-side coding 76 - 79. Plug guide surfaces, encountered on the socket sliding surface 29.

Upon rotation of the connector 12, the alignment position is then reached when the corresponding coding match each other, in which case the plug enters the socket 1 1, and to a certain depth.

The depth is determined in the embodiment in that the front threads of the mounting sleeve with the front threads of the cable bushing collide.

Then, the connecting sleeve 18 is rotated, that is screwed into the cable socket, wherein the plug body and the socket body are already aligned, the socket and plug contacts 163, 164 finally come into connection.

If, therefore, the plug connector 12 is to be inserted into the socket 11 in order to achieve the plug connection shown in FIG. 12 moves to the socket 1 1 out. This axial movement comes to an end when the guide end surfaces 73 impinges on the bushing and socket stop surface 29, unless just coincidentally the coding elements 76-79 and 35-39 are in alignment.

The user can then reach the radial position encoded by coding recesses and coding elements by turning the connector 12, the guide end faces 73 sliding on the socket stop surface 29 until the aligned position is reached, the axial alignment of socket 1 1 and connector 1 2 during the search Rotation is maintained. When the alignment is achieved by the engaging Codierausnehmungen and coding, enter the ringförmin- gene longitudinal lugs 160 of the pin body 16 in the corresponding longitudinal bores 20-23 and preferably reach approximately the position shown schematically in Figure 3 in which preferably the coaxial contact sockets 64th not yet engaged with the corresponding coaxial pin contacts. These preferably only come into engagement when the plug-in sleeve 200 is moved even further into the position shown in FIGS. 1 and 1 5 by turning the locking nut 300.

LIST OF REFERENCES

10 coaxial circular connector

1 1 coaxial cable socket, socket

12 coaxial circular connectors, connectors, connectors

13 coaxial pin contact elements

14 coaxial socket contact elements

15 socket body

16 pen body

17 Bushing sleeve, bushing sleeve, bushing sleeve for mounting with the connector

18 locking or Befestigungsschraubhülse

20 longitudinal bore

21 longitudinal bore

22 longitudinal bore

23 longitudinal bore

24 plug opening

25 connection opening

27 stop surface

29 sliding or stop surface, socket stop surface

30 ring protrusion

31 longitudinal groove

35 coding recess

36 coding recess

37 coding recess

38 coding recess

39 coding recess

40 circular cylindrical stop surface

41 inner surface

42 wall pieces

43 wall pieces

44 bead

45 inner surface 51 pin body connector

52 pen body part

56 face

60 groove

63 in diameter circular cylindrical pin sleeves

64 in diameter circular cylindrical bushing sleeve

70 rib

71 Rib section, coding element, half-circle cutout

72 rib section, small half-circle cutout

73 guide end face

74 contact end

75 connection end

76 Coding element, Kondiervorsprung

77 Coding element, Kondiervorsprung

78 Coding element, Kondiervorsprung

79 Coding element, Kondiervorsprung

80 contact surface

84 coaxial pin contact element

86 contact page end

87 connection side end

90 plug face

96 contact side wall

97 socket end face

129 Innegenwinde

140 latching arms

141 contact wall

142 contact end

143 connection end

144 stop surface

158 locking elements

160 longitudinal noses

163 pin contact

164 socket contact 1 71 Contact end of the bushing sleeve

1 72 connection end

173 stop surface

1 74 hole

200 plug sleeve, socket

201 Holraum, bore

242 connection end

243 contact end

244 stop surface

245 cavity

250 ring bridge

300 locking nut

301 Holraum

310 end face, end stop 320 contact socket

321 external thread

400 front thread

600 locking elements

α longitudinal axis

A1 bore sections

A2 bore sections

A3 bore sections

D1 - D3 diameter

L1 section

L2 section

L3 section

F1 - F4 section

V1. V2 Holraumabschnitt

Claims

claims

1. Contains contact protected circular connector

a socket (1 1) having a socket contact body (15) with coaxial socket contacts (14) and a female contact body (15) receiving female sleeve (17), wherein the female contact body (15) a plurality of Kodierausnehmungen (35,36,37,38,39 ) and a plug (2) having a multi-pin pin body (16) with coax Stifkontakten (13) extending into the plug-side receiving space of the plug (12) enclosing plug sleeve (200) and wherein the plug sleeve (200) at least three Kodierausnehmungen (35,36,37,38,39) corresponding Kodierrippen (76,77,78,79) (or Kodiervorsprünge) at the inner periphery in the receiving space of the plug (12) forms characterized in that

each of the at least three coding ribs (76, 77, 78, 79) forms on its plug-side end a guide surface (73) which together form a bearing surface for the abutment-shaped end face (360) of the bushing sleeve (17), and the guide surfaces (73 ) span a common plane, so that the plug when mating with the socket with its end face (360) rests on the guide surfaces (73) and by rotating the end face (360) on the guide surfaces (73) of the plug in its mating with the socket Orientation can be brought, in which the coding ribs (76,77,78,79) can dive into the corresponding Kodierausnehmungen (35,36,37,38,39).

2. Circular connector according to claim 1, wherein when the end face rests on the guide surfaces no contact between the pin and socket contacts (or distance between them).

3. Circular connector according to claim 1 or 2, wherein the coding ribs have different geometry.

4. Circular connector according to one or more of the present claims, wherein the coding ribs are formed integrally with the plug-in sleeve.

5. Circular connector according to one or more of the present claims, wherein at least one over an angular range of about 30 ° outside circumferential end face {widened end face in Fig. 8 below) is provided.

6. Circular connector according to one or more of the present claims, wherein the plug and socket have threaded connections.

7. Circular connector according to one or more of the present claims, wherein the Koaxkontakte have elastic locking arms.

8. Circular connector according to one or more of the present claims, wherein the pin body is formed as a two-piece pin body.

9. Circular connector according to claim 7, wherein the two-part pin body abutment for the elastic latching arms are located, wherein preferably the abutment are arranged only partially circumferentially. 0. Round connector according to claim 7, wherein the circular connector has a 4-pole and symmetrical structure.

11. Circular connector according to claim 7, wherein the plug-in sleeve is metallic.

12. A Koxial circular connector having a Koxial cable bushing (11) and a coaxial circular connector (12) connected to the Koxial cable bushing (11), the Koxial cable bushing (12) having means provided with a Koxial circular connector Means like that cooperate that when plugging circular connector and cable socket ensures that the contact sockets (320) of the Ko- contact elements of the female sleeve with the pin contacts (123) of the Koxialrundsteckverbinders (112) are precisely aligned.

13. Circular connector according to claim 12, wherein the socket body (15) has a sliding or abutment surface (29) which cooperates during insertion with a sliding surface of the connector (12) in order to carry out the insertion process, the orientation of the Koxial- contact elements in socket (1 1) and plug (12) to ensure.

14. Circular plug connection according to one of the preceding claims, wherein at the plug or end face on a pin body (16) receiving plug sleeve (200) by Kodierelemente a support surface is defined on the sliding surface (20) comes to rest at the beginning of the sliding, wherein then when Kodiervorsprünge with socket-side provided Kodiereinnehmungen engage, the plug-in is weiteretzbar.

15. Circular plug connection according to one of the preceding claims, wherein on a plug sleeve end face (97) a radially outward plug face (90) and adjacent thereto defined by the end faces of the contact elements, slightly axially recessed, end face (73) is formed.

16. Circular plug connection according to one of the preceding claims, wherein the pin body (16) is constructed in two parts and latching elements (158) and latching elements (600).

17. Circular plug connection according to one of the preceding claims, wherein on the plug side and plug side each stop surfaces are provided, which then come to a stop when the alignment of the coding elements is reached, but after a short axial Re- lativbewegung between socket and plug meet these abutment surfaces and hold plug and socket in alignment, in which case the actual contact between the contact elements in the socket and in the plug takes place when, for example, by a screwing the further axial movement is initiated.

18. Circular connector according to one of the preceding claims, wherein the socket-side contact surfaces are provided by the first thread of an internal thread of a Buchsenschraubhülse, while the plug-side abutment surface, the front edge of a locking or Befestigungsschraubhülse (18) of the plug is formed.

19. A coaxial circular connector with

a) a coaxial cable socket (socket) (1),

b) a Koxial circular connector (plug connector) (12), and c) means (17, 18) for fixing the plug connector (12) to the cable socket,

the socket (11) comprising

1 . a socket body

2. a receptacle for receiving the socket body (15) serving bushing sleeve, and

3. means (129) for non-rotatable and non-displaceable attachment of the socket body (15)

the bushing mounting sleeve (17),

wherein the socket body (15) is preferably integrally formed in the form of an outer diameter drum which a) forms a circular terminal side with a terminal surface, b) opposite to the terminal side forms a contact side with a circular one contact surface, and with a plurality of, preferably four, in the longitudinal direction of the drum and

mutually extending contact receiving bores (21 - 23) extending from the connection side to the contact side

and at these pages are each open and to accommodate Physis contact elements (14) serve and, which in the holes in a certain

Position are determined by fastening means,

wherein the connector (12) comprises

1. a pen body (16),

2. an inner and an outer diameter having mounting sleeve (18) for receiving the pen body (16) and

3. means for fixing the pin body in the fastening sleeve,

wherein the pin body hardening means comprises:

a) Axialpositionsestlegungsmittel for fixing the pen body in a certain

Axial position in the mounting sleeve, and

b) radial position fixing means for fixing the pin body in a defined radial position in the fastening sleeve,

wherein the pin body has an outer diameter barrel portion and a plurality of, for example, four, inner and outer diameter tubes, the barrel portion defining two axially spaced palms, a pad from which the coaxial contacts are inserted and a plug end face; from which stretch the pipes, all of which end in a pipe end plane.