EP1972035A1

EP1972035A1 - Electrical plug-and-socket device

Info

Publication number: EP1972035A1
Application number: EP07703730A
Authority: EP
Inventors: Berthold Kalkus; Manfred Kilian
Original assignee: PC Electric GmbH
Current assignee: PC Electric GmbH
Priority date: 2006-01-09
Filing date: 2007-01-09
Publication date: 2008-09-24
Also published as: DE102006001130A1; CN101390261A; WO2007080166A1; DE202006020191U1

Abstract

Disclosed are plugs, socket-outlets, and couplers, preferably ones satisfying standard EN 60309, parts 1 and 2, especially couplings as well as built-on and surface-mounted socket-outlets as circular plug-and-socket devices which meet the tightness requirements without using a hinged lid while the plugging and pulling forces are significantly reduced. According to the invention, the sealing function is accomplished by means of a closure element (3) that rotates about the plugging axis while the plugging and disconnecting function of the plug-and-socket device is separated from the contacting function of the plug-in contacts as a result of the fact that the bushing contacts (6) are disposed radially offset relative to the standard position on a divided circle (10) while the contact pins (12) are radially fed to the bushing contacts (6) with the aid of a relative rotational movement between the plug (13) and the coupling (2) or socket-outlet after plugging in the plug (13).

Description

ELECTRICAL CONNECTION DEVICE

FIELD OF THE INVENTION

The present invention relates to electrical plug-in devices, in particular round plug-in devices, preferably those plug-in devices which the

Standard requirements of IEC 60309-1 / DIN EN 60309-1 and

IEC60309-2 / DIN EN 60309-2 are sufficient. This kind of

Plug devices generally consist of plug and socket or coupling and are known from the following patents: DE 201 05 135 U 1, extension box with integrated

Switch, the PCT / EP99 / 02481 a coupling of this type with special line clamping and DE 196 45 852 C 1 multipolar plug as a phase inverter.

STATE OF THE ART

Such plug-in devices have according to the standards listed above a plug attached to the guide or coding nose and a complementary guide or coding groove which is located on the coupling or the socket. Usually, the coupling or socket is provided with a hinged lid. The fixed position of the contact elements in conjunction with the coding ensures the mating of complementary plugs and couplings or sockets. When plugging in the plug, the contact pins are fed axially to the contact sleeves of the coupling or socket. The position assurance of such a plug device in the inserted state based on a tensile stress is realized by a locking geometry on the plug, and a latching hook which is located on the cover of the coupling or the socket, according to standard. When unplugged, the hinged lid performs a sealing function and protects the sockets and couplings from contamination of the contacts and excessive water ingress. The functions, coding and position assurance are usually independent functional elements.

In unlocked plugs, the separation of the plug-in device by lifting the hinged lid takes place at the latching hook is located and at the same time the train Connector components with the live contact pairings.

In DE 201 05 135 U 1, attention is drawn to a perfect locking by means of the coding nose by turning the inserted plug. Locking is to be defined so that plugs can not be disconnected with live contact pairings. This is realized by a switch that switches the contact pairs before the tensile load potential-free. In this case, the plugging and contacting of the plug contacts takes place in one operation and the current and voltage supply is realized by means of rotary movement of the plug which then actuates a switch. Both variants, the locked version and the variant under tension require a relatively high force to separate the contact pairings. This can lead to an uncontrollable handling in the pulling direction often damage to the material or even injury to the operator result.

PRESENTATION OF THE INVENTION

The invention is therefore based on the technical problem of developing a generic socket, in particular coupling and mounting or mounting socket as a circular connector, so that the pulling and plugging of such a connector substantially facilitates the risk of injury obtained, the sealing function for the contact chambers remains and a secure locking of the plug-in device is guaranteed.

To solve this problem, the invention proposes in a coupling or mounting or mounting socket of the type described above, that the socket contacts are rotated radially by an angular amount X are arranged on the pitch circle and the pins of the plug after the axial insertion by turning the plug radially Socket contacts are supplied. Thus, the plugging and pulling in a contactless state under exclusion of the contact forces. By turning the plug in the socket or the coupling is the on the plug located coding nose radially into a specially shaped chamber, which is located in the socket or the coupling, and thus forms together with the socket or the coupling, the locking of the plug-in device. The sealing function assumes a closure body which is arranged in the interior of the socket or the coupling and presses by means of a compression spring from the inside to the outside on a sealing element which is located inside the front of the socket or the coupling. In the unmated state, the guide holes for the contact pins are closed by the closure body. By inserting the contact pins of the closure body is pressed against the pressure of the compression spring inside the socket wherein the closure body is rotated by a special guide in rotation and the guide holes for the pins after a certain immersion depth is free, so that the contact pins unhindered in the contact chamber can dive. When the plug is pulled, the compression spring pushes the closure body back over the positive guide and seals the guide holes again.

Em rotating body, which forms the frontal termination of the contact carrier of the sockets or couplings, is rotatably mounted in the contact carrier and establishes the standard compliant state of the guide hole geometry for coding. In the unlatched state prevents the closure body in its neutral position, by means of circumferentially arranged stops, an inadvertent rotation of the rotating body.

As a result of the arrangement of the rotating body, the closure body and radially offset sleeve contacts, which are able to radially receive the pins of the plug, the assembly of a socket or coupling results in the technical advantages of a locked connector, wherein the disturbing hinged lid can be dispensed with to fulfill the sealing and locking function. The pulling forces approaching zero guarantee optimum handling with a greatly reduced risk of injury with a product conforming to the standards, especially with regard to the interchangeability and uniqueness of plugs from different manufacturers. In the following, the invention will be explained in more detail with reference to a drawing showing only an exemplary embodiment; show it:

Fig.l is shown isometric coupling (2) with the located in the center of the contact carrier (1) and the center arranged in the rotating body (3).

A possible mating face according to standard specification with the pitch circle (10), the Fύhrungslöchern (9) for the im

Plug (13) located pins (12) (not shown here), the coding groove (20) with laterally molded holding pocket (22) and a rotation angle X (11).

3 plug (13) with the contact pins (12) and the coding nose (20)

4 shows the structure of a coupling in isometric form as an exploded view executed with the rotary body

(3) the seal (5) the closure body (4) of the

Compression spring (8) the contact carrier (1) and the surrounding housing of the coupling (2).

5 is a sectional view of a plug-in device consisting of coupling (2) and plug (13) in the plugged Zusand but m unverπegelter and not rotated position with the position assignment of non-contacted contact pins (12) the radially offset Hύlsenkontakten (6) and the arcuate formations

(18) in the contact carrier (1) wherein the coding nose (20) of the plug (13) is in congruent position to the coding groove (21) of the coupling (2).

6 is a sectional view of a plug-in device consisting of the coupling (2) and plug (13) in the plugged Zusand but in locked and rotated position with the position assignment of the contacted contact pins (12) the radially offset Hύlsenkontakten (6) and the arcuate formations

(18) in the contact carrier (1), wherein the coding nose (20) of the plug (13) in the laterally molded

Retaining pocket (22) of the coupling (2) is screwed.

7 shows the rotary body (3) with the guide holes (9) for the

Contact pins (12) of the plug (13) and the bearing pin (16) with the on the lateral surface (23) mounted complementary guide geometry (17) for the closure body (4) and the Axiallagerungfläche

(24) and the detent (25).

8 shows the sealing element (5) with the complementary holes for the contact pins (12) and the frontal sealing surface (31) and the peripheral sealing surface (30).

9 shows the closure body (4) with the complementary holes for the contact pins (12), the guide geometry

(17) of the bearing pin (16) kommentär trained guide geometry (15) of the closure body (4) and the circumferentially shaped locking formations (28a, 28b).

10 shows the contact carrier (1) with the locking pins (29a, 29b) for the closure body (4) and the limiting pin (27) for the rotation angle of the rotary body (3) and the sealing surfaces (32 and 33) for the sealing element

(5) and the bore for the bearing surface (19) for the bearing journal (16) and the arcuate formations

(18).

11 shows a sleeve contact (6) with the contact spring legs (34) formed as lamellae (35) and an additional spring (36).

12 is a partial sectional view of the coupling with the individual components as a module assembly.

In the figures, a socket, according to the embodiment of a coupling (2) is shown as a circular plug-in device. This coupling (2) is a 5 pol. Plug-in device whose Encoding is set to 6h. This means that

Position of the protective conductor in the pitch circle (10) a

Clock position of 6 o'clock occupies. The invention can also be applied to any other clock position.

For the basic structure of the socket or coupling (2) includes a contact carrier (1) with the housing of the clutch (2) either by Verrastungselemente (not shown) is firmly connected or consists of a part. This constellation defines the time code and picks up the sleeve contacts (6). The sleeve contacts (6) are on a pitch circle (10) offset by a rotation angle X.

(11) in the contact carrier (1) arranged so that the contact pins

(12) of the inserted plug (13) the sleeve contacts (6) or only partially touch. The structure of the sleeve contacts (6) allowed by the laterally molded spring legs (34) to receive the contact pins (12) both axially and radially. The spring legs (34) may be formed solid or in lamellar form (35). An additional spring (36) can act to support the contact force on the spring legs (34).

In view of the plug-in direction (shown in Fig.l), the frontal face of the contact carrier (1) by a rotary body (3) is formed. The rotary body (3) has a bearing journal (16) which is arranged centrally and supports the rotary body (3) axially by means of a bearing surface (24) and a bearing bore (19) which is located in the contact carrier (1) (see FIG and 11). This rotary body (3) has the guide holes (9) on which in their zero position (unmated Zusand) the standard conform hole geometry for coding (20 and 21) produces. On the circumference of the rotary body (3) has a Begrenzungsausformung (26) is arranged in engagement with the limiting pin (27) on the contact carrier (1) for limiting the angle of rotation X (11) of the rotary body (3). On the lateral surface (23) of the journal (16) are axially coiled guide ribs (17) which are complementary to the guide grooves (15) of the closure body (4) are formed. The bearing pin (16) has at the end of a detent (25) which serves to secure the position. Between the rotary body (3) and the contact carrier (1), a sealing element (5) is arranged. The sealing element (5) has the same hole pattern as the rotary body (3) and is so positioned both hole pattern arrangements in a concentric position.

This open hole geometry is closed by a closure body (4) by the closure body (4) by a compression spring (8) against the sealing element (5) is pressed. The closure body (4) also has the same hole pattern as the rotary body (3) but offset by a rotation angle X so that in the zero position the hole pattern of the full surfaces of the sealing element (5) is covered and as a whole creates a sealed system. The closure body (4) has centrally a through hole (14) in which are wound guide grooves (15). In this through hole (14) of the bearing pin (16) with the complementary formed guide ribs (17). The rotary body (3) via the bearing pin (16) with the contact carrier (1) by means of the detent (25) which engages behind the edge of the bearing bore (19) engages.

This construction of the socket or the coupling (2) fulfills the following functions. When plugging the plug (13) penetrates both the coding nose

(20) of the plug (13) in the coding groove (21) of the coupling (2) and the contact pins (12) of the plug (13) in the

Guide holes (9). During the plug-in process, the

Closure body (4) pressed by the contact pins (12) against the compressive force of the compression spring (8) to the rear and rotated over the winding guide ribs (17) and guide grooves (15) about its central axis. In this way, the hole pattern of the closure body (4) acquires the same position as that of the rotating body (3) and releases the path for the contact pins (12) for further immersion in the contact carrier (1). Thus, the plug (13) through the keyholes (18) in the contact carrier (1) submerge without force in the clutch (2). In this position are the contact pins (12) next to the sleeve contacts (6) without contacting them. By a relative rotational movement between plug (13) and coupling (2) about the rotation angle X (11), the contact pins (12) are screwed into the sleeve contacts (6) and contacted, at the same time by the relative rotational movement of the coding lug (20) of the plug (13) from the coding groove (21) of the coupling (2) is screwed into a retaining pocket (22) and locks the plug-in device. When releasing the plug-in device, the plug (13) is first rotated in the reverse direction with the contact pins (12) from the sleeve contacts (6) to cancel the contact of the plug device with the contact forces, with the coding nose (20) of the plug (13) again screwed into the coding groove (21) of the coupling (2) and releases the lock.

Now, the plug (13) can be pulled free of force from the clutch. In this case, the compression spring (8) presses the closure body

(4) back to zero position against stop against the sealing element (5) back. By this axial resetting of the closure body (4) takes place simultaneously on the axially coiled guide ribs (17) and the complementarily arranged guide grooves (15) a rotation of the closure body (4) to the effect that in its zero position, the guide holes (9) are closed. The closure body (4) is pressed by means of the pressure force by the compression spring (8) with the closed spaces of the hole pattern against the offset hole pattern of the sealing element (5) and thus seals the coupling or the socket. In addition, the sealing element (5) with the peripheral surface (30) seals radially to the contact carrier (1) with the counter-sealing surface (32) and axially with the edge zones of the end faces (31) and the counter-sealing surface (33) of the contact carrier (1).

In the zero position are the locking pins (29 a and b), which are arranged on the inner lateral surface of the contact carrier (1), in engagement with the Sperrausformungen (28 a and b) of the closure body (4). By the opposite direction of rotation ^¬ sense of the closure body (4) to the direction of rotation of the locking and the contacting of the rotary body (3) on the bearing pin (16) is protected against unintentional twisting.

By depressing the closure body (4) by means of the contact recess (12) slide the Sperrausformungen (28 a and b) on the locking pin (29 a and b) over and thus give the rotating body (3) free. Thus, on the one hand, the clock position compliant with the standard is secured via the blocking function and, on the other hand, the necessary rotation for contacting is enabled. Description Lies

1 contact carrier

2 clutch

3 rotary bodies

4 closure bodies

5 sealing element

6 contact with the brush

7 contact pin

8 compression spring

9 guide holes

10 pitch circle

11 rotation angle X

12 contact pin

13 plugs

14 through hole

15 guide grooves

16 journals

17 Fuhrungsgeometπe

18 keyholes in the contact carrier

19 bore bearing surface

20 coding nose plug

21 coding groove coupling

22 holding bag

23 lateral surface of the journal

24 thrust bearings

25 detent

26 limiting shaping

27 limit tap

28 Sperrausformung (a and b)

29 locking pins (a and b)

30 circumferential area

31 end face sealing element

32 sealing surface radial contact wearer

33 sealing surface axially contact wearer

34 spring leg contacts (a and b)

35 lamellas

36 additional spring

Claims

PATENT APPLICATIONS

1. Plug-in devices preferably those that meet the standard EN 60309 Part 1 and 2, in particular clutches and attachable and socket outlets as circular connectors whose requirements for tightness without hinged lid are met and the insertion and removal forces are greatly reduced, characterized in that the sealing function a closure body (3) rotating around the plug-in axis is fulfilled and the function of plugging and unplugging the plug-in device is separated from the function of contacting the plug-in contacts, thereby realizing that the sleeve contacts (6) are radially displaced in their position relative to the standard position on the pitch circle (10 ) are arranged and the contact pins (12) after plugging in the plug (13) by a relative rotational movement between the plug (13) and the coupling (2) or socket, the contact pins (12) radially to the sleeve contacts (6) are supplied.

2. couplings and sockets according to claim 1, characterized in that the standard-compliant arrangement of the guide holes (9) for the contact pins (12) in the coupling (2) or socket formed by a rotary body (3) mounted axially to the insertion direction and radially is rotatable.

3. couplings and sockets according to one of claims 1 or

2, characterized in that the contact carrier (1) arcuate formations (18) which are arranged on the pitch circle (10) through which the contact pins (12) dive to the relative rotational movement between the plug (13) and the coupling (2) or socket to enable.

4. clutches and sockets according to one of claims 1 to

3, characterized in that the rotary body (3) has a bearing surface which makes it possible to support the rotary body (3) axially in the contact carrier (1).

5. couplings and sockets according to one of claims 1 to

4, characterized in that the rotary body (3) has a bearing journal (16) which on its lateral surface (23) a complementary with the Verschlußkόrper (4) Fgehrungsgeometπe (17) has

6. couplings and sockets according to one of claims 1 to

5, characterized in that the bearing pin (16) has a latching geometry (25) which makes it possible to fix the rotary body (3) rotatably in its position.

7. couplings and sockets according to one of claims 1 to

6, characterized in that the closure body (4) has the through holes for the contact pins (12) which are arranged offset radially in their zero position on the pitch circle (10), so that a covering of the holes with the full areas of the sealing element (5 ) is achieved and the guide holes (9) for the contact pins (12) in the rotary body (3) are closed.

8. couplings and sockets according to one of claims 1 to 7, characterized in that the closure body (4) by the insertion of the contact pins (12) by means of the complementary Fύhrungsgeometπe (15) to the rotary body (3) experience a radial and an axial direction change ,

9. couplings and sockets according to one of claims 1 to 8, characterized in that the closure body (4) via the Fuhrungsgeometπe (15 and 17) has an opposite direction of rotation to the rotational direction of the rotary body (3).

10. couplings and sockets according to one of claims 1 to

9, characterized in that the closure body (4) has one or more peripherally located formations (28 a and b) in the zero position with its radially disposed body edge against one or more on the contact carrier (1) located pin (29 a and b ) and thus ensures the rotary body (3) m the end position against unintentional rotation.

11. clutches and sockets according to one of claims 1 to

10, characterized in that the closure body (4) by means of spring force against the sealing element (5) is pressed.

12. couplings and sockets according to one of claims 1 to

11, characterized in that the surrounding housing of the coupling (2) and the contact carrier (1) is made in one piece.

13. couplings and sockets according to one of claims 1 to

12, characterized in that the sleeve contact (6) has one or more spring legs (34).

14. couplings and sockets according to one of claims 1 to

13, characterized in that the spring legs (34) of the sleeve contact (6) are formed as lamellae (35).

15. Couplings and sockets according to one of claims 1 to 14, characterized in that the Hύlsenkontakt (6) by an additional spring (36), the force acting on the spring legs (34) of the sleeve contact (6), the contact force of the sleeve contact ( 6) supported.

16. couplings and sockets according to one of claims 1 to 15, characterized in that by the relative

Rotational movement between plug (13) and coupling (2) or

Socket the coding nose (20) of the plug (13) in one

Holding pocket (22) is screwed to the housing of the clutch (2) and thus locks the plug-in device.

17. couplings and sockets according to one of claims 1 to

16, characterized in that the angle of rotation X (11) of the rotary body (3) by a peripheral shaping

(26) and in the counterpart of the contact carrier (1) is bounded on the circumference formed limiting pin (27).

18. couplings and sockets according to one of claims 1 to

17, characterized in that the sealing element (5) between the rotary body (3) and the closure body (4) is arranged.

19. couplings and sockets according to one of claims 1 to

18, characterized in that the sealing element (5) the sealing function to the contact carrier (1) both radially with the

Peripheral surface (30) and axially with the edge surface of the end face (31) met.