WO2014161847A1

WO2014161847A1 - Plug device for a spring-force connection

Info

Publication number: WO2014161847A1
Application number: PCT/EP2014/056514
Authority: WO
Inventors: Marc BÖCKER; Stephan Lange
Original assignee: Weidmüller Interface GmbH & Co. KG
Priority date: 2013-04-05
Filing date: 2014-04-01
Publication date: 2014-10-09
Also published as: DE202014101541U1; EP2982010A1; EP2982010B1

Abstract

The invention relates to a plug device, in particular an interface plug device, which is intended to be inserted into a spring-force connection. The plug device has a connection housing, into which an electrical conductor is inserted, and a connecting sleeve having a plug connection arranged in the connecting sleeve. The plug device is characterized in that the connecting sleeve is detachably fastened to the connection housing. The invention further relates to an assembly of a connecting device having a spring-force connection and having a connecting sleeve of such a plug device inserted into the spring-force connection. The invention further relates to an assembly of a connecting device having a spring-force connection and having a plug device inserted into the spring-force connection.

Description

Plug-in device for a spring-cage connection

The present invention relates to a plug-in device, in particular an interface / interface plug-in device, which is provided for insertion into a spring-force connection.

Spring force connections of the generic type have clamping springs, which are preferably made of a hard spring steel, and which are provided for clamping the inserted into the spring-loaded electrical conductor. The electrical conductors are, for example, wire conductors or sleeves to which wire conductors are connected. To ensure good electrical conduction, they are preferably made of a copper-containing metal or copper. Such copper-containing metals are soft compared to spring steel. As a result, the electrical conductors inserted in a spring-cage connection are often not only scratched, but the spring steel of the spring can dig into the copper-containing metal of the electrical conductor. On the one hand, the electrical conductor is damaged. On the other hand, pulling out an electrical conductor from such a spring connection is often very difficult. The release of an electrical conductor from a spring-cage connection, however, is often required, in particular in manufacturing technology, for example for reconfiguring an electrical device arrangement or at least temporarily for test purposes. To counteract this, proposes the document DE 10 2010 012 820 B4, to provide a Leitereinführstecker, in the contact area to a clamping spring of a spring terminal a layer of a first harder metallic material and another layer of a softer compared to the first layer second, more conductive material. The harder material is arranged facing the clamping spring, so that the clamping spring can no longer expire in Leitereinführstecker and this is the spring terminal with relatively small operating forces removed.

In contrast, the invention takes a different approach.

To create a plug-in device according to claim 1 and an arrangement according to claim 8. Advantageous embodiments can be found in the dependent claims. Claim 1 provides a plug-in device, in particular interface interface plug-in device, which is provided and adapted for insertion into a spring force connection, with a connection housing, in which an electrical conductor or plug can be inserted or inserted, and with a connection sleeve, in which a connector-like plug connection is arranged wherein the connection sleeve is detachably arranged on the connection housing, in particular fastened, wherein furthermore a releasable plug contact is formed between the connection sleeve and the connection housing at the plug connection m assembled state of connection sleeve and connection housing, and wherein the plug connection is further provided with a connection tongue and electrically is conductively connected, which protrudes from the connecting sleeve and which is designed for insertion into the spring-loaded connection,

When the connection sleeve is fastened to the connection housing, the connection tongue makes electrical contact with the spring force connection and the connection terminal with the electrical conductor on the connection housing. In this embodiment, the connection housing is detachable from the connection sleeve. In addition, a plug connection is formed between these elements. Therefore, instead of completely removing the plug-in device plugged into a spring-cage connection, the plug-in device of the present invention enables only the terminal housing to be detached from the connection sleeve when the connection housing is removed in this state and the connection sleeve with its plug connection to the connection tongue in the housing Spring-cage connection remains. For this purpose, the plug connection is again preferably arranged inseparably in the connecting sleeve.

The connection sleeve and the connection housing are preferably releasably locked together. Furthermore, the plug contact formed on the plug connection preferably has a socket contact on the connection sleeve, which can be plugged together with a pin contact on the connection housing. The reverse variant is also conceivable. In this way, the invention can be realized easily and simply.

In order to avoid clawing or other damage to the electrical conductor by the plug connection arranged in the connecting sleeve, it is preferred to manufacture it from a material of a similar softness, such as the electric conductor.

Additionally or alternatively, it is preferred that the electrical conductor is protected at its stripped end by a crimp contact. The crimp contact is on arranged electrical conductor so that it electrically contacted the plug-in connection and is detachably attached thereto when arranged in the connection sleeve connection housing. For this, it is preferred that the plug connection has clamping means with which the crimp contact can be clamped to the plug connection. However, it is also preferred an embodiment that does not provide a crimp contact but a Federkraftan- circuit. In order to ensure a secure electrical and mechanical connection between the terminal housing and the connecting sleeve even at low spring force of the clamping means, it is preferred that the connecting sleeve is connected to connecting means, in particular with locking means, with the terminal housing. Although the latching means allow an operator to release the connection housing from the connection sleeve, they prevent an automatic release, for example, in the event of vibrations occurring.

The plug-in device is preferably designed as interface interface plug-in device and provided for the temporary release of the electrical conductor of the spring force connection. However, it can also be used as a permanent plug-in device in the spring force connection. In addition, the remaining in the spring force connection connection sleeve allows a very easy reconfiguration of several plugs. In addition, it is also conceivable to connect a prefabricated cable harness to a series of terminals with spring-loaded terminals, by connecting only the corresponding plug-in devices.

It is preferred that the plug connection has a connection tongue which projects out of the connection sleeve. In this embodiment, the connection tongue of the plug connection inserted into the spring-force connection is clamped in this with a clamping spring of the spring-force connection.

In order to attach a plurality of plug-in devices to one another, first and / or second joining means and first and / or second joining counter-means, which are formed corresponding to the first and / or second joining means, are preferably arranged on the connection housing. With the first joining means and joining counter means a plurality of plug devices in a longitudinal direction in particular detachably to each other are rebar. With the second joining means and joining counter means a plurality of plug devices in a transverse direction are in particular detachably connected to one another. The object is further achieved with an arrangement of a connection device which has a spring-force connection, and a connecting sleeve of such a plug-in device. Furthermore, the object is achieved with an arrangement of a connection device which has a spring-force connection, and such a plug-in device.

The invention with reference to the drawings with reference to embodiments will be explained in more detail, with further advantages of the invention will become apparent. It shows:

Fig. 1 in (a) a plug-in device, in (b) a plurality in a longitudinal direction juxtaposed plug-in devices and in (c) a plurality in a transverse direction juxtaposed plug-in devices; in (a) an exploded view of the plug-in device from FIG. 1 (a), in (b) a connecting sleeve of the plug-in device with a mounted plug-in connection, in (c) the connecting sleeve and the plug-in connection from (b) in an exploded view and in ( d), (e), and (g) views of housing parts of the plug-in device; FIG. 3 (a) is a side view, FIG. 3 (b) is a plan view, and FIG. 3 (c) is a perspective view. FIG and Fig. 3 (d) shows the perspective view of Fig. 3 (c), wherein a connection sleeve of the connector is detached from a connector housing of the connector, and Fig. 3 (e) shows the connector with connection sleeve and without connection housing shows; and an arrangement of a plurality of juxtaposed connection devices, each having a spring force connection, in each of which a plug-in device is inserted, wherein the plug-in devices are arranged in a row in a row.

1 has a connection housing 13 with an insertion opening 131. An electrical conductor 5 is inserted in a plug-in direction 40 through the insertion opening 131 into the connection housing 13. At its lower end in the insertion 40 end, a connecting sleeve 1 1 is arranged. From the Connecting sleeve 1 1 protrudes into the insertion direction 40 facing terminal tongue 121 of a plug-in connection 12, which serves for insertion into the spring plug connection designed as Direktsteckan-. The plug connection 1 2 is visible in FIG. 2. It comprises a socket contact, here as integrally formed with a connection tongue 1 21 clamping means 1 22, which are designed here as two mutually parallel clamping tongues. Between the clamping tongues 122 a pin contact such as a Crimpkontakthülse (in the crimped state, called crimp contact briefly) 14 releasably clamped.

The connecting sleeve 1 1 has a through hole 1 1 1, through which the plug-in connection 1 2 is guided in an assembled state of the connecting sleeve 1 1, so that the connection tongue 1 21 protrudes from the lower end of the connecting sleeve 1 1 in the insertion direction 40 , On the connecting sleeve 1 1 locking means 1 1 3, arranged for releasably locking the connecting sleeve 1 1 on counter-locking means 1 34 of the connection housing 13th

The connection housing 1 3 has a housing cover 1 32 which is detachable from the connection housing 1 3. The housing cover 1 32 is preferably bolted or latched to the connection housing 1 3. In the exploded view shown, the housing cover 1 32 is shown detached from the connection housing 1 3, so that an inner space 1 30 of the connection housing 1 3 is visible. It is shown that the insertion opening 1 31 is formed as a passage opening. At the top in the insertion direction 40 of the connecting sleeve 1 1, a housing cover 1 5 is formed / arranged. The electrical conductor 5 has a core 51, which is surrounded by an electrically insulating sheath 52. At a stripped insertion a Crimpkontakthülse 14 is arranged, which protects the insertion end of the core 51 from damage. The crimp contact sleeve 14 has an insertion tab 141, as well as fastening tongues 142, with which the electrical conductor 5 can preferably be fastened permanently to the crimp contact sleeve 14.

In an assembled state of the connection housing 1 3, the Crimpkontakthülse 14 is fixed to the stripped insertion end of the electrical conductor 5. Furthermore, the Crimpkontakthülse 14 is inserted in the insertion direction 40 in the terminal housing 1 3. Holding means (not shown) are preferably provided in the connection housing 1 3, in particular on the housing cover 132, which means removal of the electrical conductor 5 and / or the crimp contact sleeve 14 after insertion into the insertion opening 131 or after closing the housing cover 1 32 32 prevent the terminal housing.

3 shows an arrangement of a connecting device 2, which has a spring force connection 230, which is designed here as a compression spring connection and as a direct plug-in connection (push-in), and a plug-in device 1, which is plugged into the spring force connection 230. Shown is a sectional view, so that the interior of the plug-in device 1 and the connection device 2 are visible. The connection device 2 has, at longitudinal ends 42 opposite ends 21 1, 212, in each case a spring force connection 230, which here is a push-in connection (direct plug connection). The spring force connections 230 each have an insertion opening 23, through which the plug-in device 1 can be inserted into the spring-force connection 230 in the insertion direction 40. In addition, they each have a clamping spring 21, which is here V-shaped, and which are provided for clamping the plug connection 12 of the plug-in device 1. For this, the clamping spring 21 a

Clamping leg 21 0, which is pivotable in a pivoting direction 2101, wherein it presses the plug connection 1 2 to a busbar 22. The plug connection 1 2 is then arranged and clamped between the busbar 22 and the clamping leg 21 0 of the clamping spring 21.

When arranged on the connecting sleeve 1 1 terminal housing 1 3, the electrical conductor 5 via the Crimpkontakthülse 14 to the plug connection 1 2 is electrically connected. And the plug-in connection 1 2 is pressed by means of the clamping spring 21 to the busbar 22 so that it is electrically connected to the busbar 22.

In order to be able to detach the connecting sleeve 1 1 with the plug connection 1 2 from the connection device 2, a tool insertion opening 24 is provided, through which a tool (not shown), for example a screwdriver, can be inserted into the spring force connection 230, so that the Clamping leg 21 with the tool against its pivoting direction 21 01 is zurückschwenkbar and the plug connection 1 2 the spring force connection 230 can be removed against the insertion direction 40.

But it is preferred that not the connecting sleeve 1 1 is removed with the plug connection 1 2 the spring force connection 230, but that the connection housing 13 is released from the connecting sleeve 1 1. Fig. 2 (b) shows the remaining in a connection device 2 connecting sleeve 1 1 after loosening the terminal housing 1 3. In the connecting sleeve 1 1 of the plug-in connection 1 2 is mounted. The connection sleeve 1 1 with the connector 1 2 forms itself a kind of double connector. Preferably, the connecting sleeve 1 1 is formed circumferentially closed.

In FIG. 3 (d), the connecting sleeve 1 1 of the plug-in device 1 is arranged in the insertion opening 23 of the spring-force connection 230 of the connecting device 2. The terminal housing 1 3 of the plug-in device 1 is released from the connecting sleeve 1 1. It is visible that the tongue 141 of the Crimpkontakthülse 14 protrudes at the lower end in the insertion 40 from the terminal housing 1 3 out.

When attaching the connection housing 1 3 to the connection sleeve 1 1, the insertion tongue 141 is guided in the insertion direction 40 between the clamping tongues 1 22 (see Fig. 2) of the plug connection 12. In addition, the latching means 1 13 of the connection sleeve 1 1 engage the latching arm 1 34 as the counter-latching means of the connection housing 13 (FIGS. 2d-f).

In this Fig. 3 (d) is further shown that on the connecting sleeve 1 1 a joining contour 1 1 2 is provided, which upon insertion of the plug-in device 1 and the connecting sleeve 1 1 in the spring force connection 230 along a corresponding thereto formed Fügenut 201 in the housing 200 (see Fig. 3 (c)) of the connecting device 2 is guided. For putting in, this Fig. 3 (d), that at the longitudinal ends 42 opposite ends 21 1, 212 disposed spring terminals 230 are electrically connected to each other via a common bus bar 22.

Fig. 3 (e) shows the arrangement of the connecting device 2 and the connecting sleeve 1 1 without the terminal housing 1 3 and the electrical conductor. 5

In Fig. 4 it is visible that the connecting device 2 selected here by way of example is a series connection device. Shown are a plurality of transversely 41 consecutively arranged row terminal devices. Within the framework of the figures shown here, the terms connection device 2 and series connection device are therefore used interchangeably. Each of the connection devices 2 has clamping means 25 (see Fig. 3 (a)), with which it can be arranged on a mounting rail (not shown). In each case one of the spring force terminals 230 of the connection device 2, a plug-in device 1 is inserted, in each case in the spring force connection 230 at the same end of the connection devices 2. The plug devices 1 are connected to each other by means of joining means 1 63.

This is shown in Fig. 1 (c). Visible are second joining means 1 63, which are formed here as in the transverse direction 41 extending nubs. The second joining means 163 cooperate with second joining opposing means (not shown) corresponding to them, which are arranged on a side of the connection housing 1 3 opposite the nub side. By moving the plug-in devices 1 in or against the transverse direction 41, these are lined up in the transverse direction 41.

Since the second joining means 163 and the second joining antagonists are arranged on the connection housing 13, they are jointly detachable from the arrangement 30 shown in FIG. 4. In this case, the connection sleeves 1 1 of the plug-in devices 1 each remain in the spring force connection 230 of its connection device. 2

For juxtaposing the plug-in devices 1 in the longitudinal direction 42, the terminal housing 1 3 each have a first joining means 1 61 and a first joining means 1 62 corresponding to the first joining means 1 61. The first joining means 161 is here designed as a dovetail-shaped joining groove extending in the transverse direction 41. Accordingly, the first joining means 1 62 is formed as a dovetail-shaped joining spring extending in the transverse direction 41. The joining groove 1 61 and the joining spring 1 62 are each arranged on opposite side walls of the connection housing 13.

By moving two plug-in devices 1 in or against the transverse direction 41, these are in the longitudinal direction 42 can be aligned with each other, so that the joining spring 1 62 engages a plug-in device 1 in the joining groove 1 61 of the adjacent plug-in device 1.

In the longitudinal direction 42 juxtaposed spring force connections (not shown), these connection housing 1 3 connected in the longitudinal direction 42 together from their connecting sleeves 1 1 are solvable. LIST OF REFERENCE NUMBERS

1 plug-in device

1 1 connection sleeve, connection sleeve

1 1 1 through hole

1 12 joining contour

1 13 locking means

12 plug connection

121 connection tongue

122 clamping means, clamping tongue

13 connection housing

130 interior

131 insertion opening

132 housing cover

133 counter-locking devices

Ϊ4 crimp contact

141 tongue

142 fixing tongue

15 housing cover of the connecting sleeve

161 First joining agent, joining groove

162 First joining antidote, joint tongue

163 Second joining agent, joint

2 connection device, row connection device

20 interior

200 housings

201 joint counter contour

21 1 First end of the connection device

212 Second end of the connection device

21 clamping spring

210 clamping legs

22 busbar

23 insertion opening

230 Spring-cage connection, direct plug

24 Second opening

25 fasteners

3 arrangement of a connection device with a plug-in device Arrangement of several row connection devices insertion direction

transversely

longitudinal direction

Electrical conductor

Vein

insulation

Claims

claims

Plug-in device (1), in particular interface / interface plug-in device, which is provided for plugging into a spring force connection (230), in particular a direct plug connection - push-in connection -, with

a. a connection housing (13) into which an electrical conductor (5) or plug can be inserted or plugged in, and

b. with a connecting sleeve (1 1), in which a connector-like plug connection (12) is arranged,

c. wherein the connecting sleeve (1 1) is detachably arranged on the connection housing (13), in particular fastened,

d. wherein further between the connection sleeve and the connection housing (13) on the plug connection (12) in the assembled state of the connection sleeve (1 1) and the connection housing (13), a releasable plug contact is formed, and

e. wherein the plug connection (12) is further provided with a connection tongue (121) and is electrically conductively connected, which protrudes from the connection sleeve (1 1) and which is designed for insertion into the spring force connection (230),

Plug-in device according to claim 1, characterized in that the connection sleeve and the connection housing are releasably locked together.

Plug-in device according to claim 1 or 2, characterized in that the plug connection formed on the plug contact a socket contact, in particular on the connecting sleeve, comprises, which is mated with a pin or blade contact, which is preferably formed on the terminal housing.

Plug-in device according to claim 1, 2 or 3, characterized in that the socket contact is formed on the connection housing and the pin or blade contact on the connection sleeve.

Interface / interface connector (1) according to one of the preceding claims, characterized in that the plug connection (12) with the pin contact or the socket contact and with the connection tongue inextricably in the connecting sleeve (1 1) is arranged. Interface / interface connector (1) according to one of the preceding claims, characterized in that a crimp contact (14) is arranged on the electrical conductor (5) which electrically contacts the socket terminal of the plug connection (12) and detachably fixes it, in particular clamps it, is.

Interface / interface connector (1) according to one of the preceding claims, characterized in that the connection housing (1 3) first and second joining means (161, 163) and first and second joining counter means (162) are arranged, with which a plurality of plug devices (1) in a longitudinal direction (42) or in a transverse direction (41) are detachably connected to one another.

Arrangement formed from either a connection device (2) having a spring force connection (230), and a connection sleeve (1 1) of a plug-in device (1) according to one of the preceding claims, or formed from a connection device (2) which has a spring force connection (230), and the plug-in device (1).

Arrangement according to claim 8, characterized in that it is a series connection device.