DE102015119389A1 - Steckdosenpolkontakt - Google Patents

Abstract

It is a Steckdosenpolkontakt proposed for a socket insert, which is composed of a Polklemmenkomponente (3) and a support spring-contact spring assembly (19). The Polklemmenkomponente (3) is composed of two conductor entries (14, 15) and two opposite contact legs (4, 5) for insertion and clamping of a pin and covers the electrical function of the power line from the conductor to the pin from. The support spring contact spring assembly (19) is formed of a metal having spring characteristics and covers the mechanical function, for which purpose two contact legs (4, 5) compressive support spring arms (20, 21) provide the clamping force for the clamping of the connector pin, and via a contact spring with at least one Kontaktfederarm (25, 26) and at least one locking arm (27, 28), the clamping force for the Leiterklemmung and the conductor lock is provided. In addition to the locking arm (27, 28) is in each case a Entriegelungsarm (29, 30) of an unlocking arranged which solves the relevant locking arm (27, 28) at the end of the inserted conductor at a force acting on one of the Entriegelungsarme (29, 30). Between the conductor entries (14, 15), an end stop (2) is arranged on the side of the unlocking spring which faces the free end of the conductor inlets (14, 15) and which spaces the conductor inlets (14, 15) from one another.

Description

The invention relates to a Steckdosenpolkontakt for a socket insert of an electrical flush or surface-mounted installation device, in particular a socket, according to the features of claim 1. The invention can also be used in socket inserts portable outlets, such as power strips.

Known electrical installation equipment, which can be designed as flush, double or multiple flush-mounted sockets or surface-mounted sockets, usually consist of a socket insert, which is constructed from a base element, which preferably for insertion or placement in an opening in a Building wall is formed. A socket insert also has a releasably attachable to the base element cover and pole terminals or pole contacts, which are provided for connection of phase conductors and neutral of a 230 V AC mains.

In the DE 10 2013 005 143 A1 a receptacle pole contact for a socket insert is described, which is composed of a Polklemmenkomponente and a support spring-contact spring assembly. The Polklemmenkomponente is composed of two conductor entries and two opposite contact legs each with end-side contact tulips for insertion and clamping of a plug pin of a plug and covers the electrical function of the power line from the conductor to the pin from. The support spring contact spring assembly consists of a metal with spring characteristics and covers the mechanical function. About two against the contact legs pressing via a support spring bridge interconnected support spring arms this is the clamping force for the Steckerstiftklemmung ensured and a contact spring with at least one Kontaktfederarm and at least one locking arm, the clamping force for the Leiterklemmung and the conductor lock is ensured.

In addition to the locking arm, an unlocking arm of an unlocking spring is typically arranged in each case. As soon as a force is exerted on one of the unlocking arms, the respective locking arm releases from the end of the inserted conductor, whereby it can be pulled out.

When inserting the pin in the corresponding pole contact, the initial forces transmitted to the conductor entries. The free ends of the conductor entries change position, both ends move towards each other and the conductor entries may deform. In case of excessive deformation of the conductor entries, the passageway narrows to the unlocking spring, which could lock the unlocking element.

In addition, due to the excessive deformation, a tensile force is generated in the outer joint (in the figures, by the reference numeral 33 designated) on the support spring-contact spring assembly, whereby this is loaded and can be solved.

The invention has for its object to create an optimized pole contact for a socket insert, which avoids the aforementioned disadvantages and in particular reduces or avoids deformation of the conductor entries of Polkontaktes when inserting a plug.

This object is achieved by a Steckdosenpolkontakt for a socket insert composed of a Polklemmenkomponente and a support spring contact spring assembly. The Polklemmenkomponente is composed of two conductor entries for the introduction of a conductor or cable good and two opposite contact legs for insertion and clamping of a connector pin and allows the electrical function of the power line from the conductor to the connector pin. The support spring contact spring assembly is formed of a metal with spring characteristics and allows the mechanical function. For this purpose, the clamping force for the clamping of the plug pin and a contact spring with at least one contact spring arm and at least one locking arm ensures the clamping force for the conductor clamping and the conductor locking via two contact legs compressively. In addition to the locking arm each Entriegelungsarm an unlocking spring is arranged. As soon as a force is exerted on one of the unlocking arms, the respective locking arm releases from the end of the inserted conductor, whereby it can be pulled out.

According to the invention, a preferably formed directly from the contact spring plate geometric body between the conductor entries, which corresponds as an end stop with the respective opposite surface and thus protects the conductor entries, which receives and clamps the conductors, such as phase conductors and neutral, against impermissible deformation or position change ,

This also ensures that the function of line release remains ensured, which is usually done because a release lever of a, usually made of insulating lever between the Pressing conductor entries on the ends of the clamping spring elements and exerts the force required to release the conductor.

According to the invention the end stop is formed directly on the pole contact in the form of a tab.

The achievable with the present invention consist in particular in that the acting as an end stop geometric body, which is arranged on the side on which the lines are introduced, stabilized the entire pole contact and avoids deformation of the conductor entries or at least reduced.

In a preferred embodiment, the Steckdosenpolkontakt is additionally equipped with a bracing element, which joins together the support spring arms of the support spring-contact spring assembly of Steckdosenpolkontaktes by the strut element closes the support spring contact spring assembly on the open side, thus optimizing the transmission of power to the Stützfeder- Contact spring assembly to bring about. As a result, the mechanical contact forces for the clamping of the respectively connected conductor and the clamping of the inserted plug pins in a socket insert are improved by the use of the strut element, because the widening of the legs is limited by the strut element.

The bracing element can be designed as, preferably U-shaped, sheet metal tab, which is pushed and clamped over the leg webs of the support spring contact spring assembly and connected thereto and be executed either as a separate component or on one of the support spring arms of the support spring contact spring Assembly be molded part.

In a further embodiment, the strut element is designed for the Steckdosenpolkontakt as pin, cylinder or wire element and guided through openings provided in the leg webs of the support spring-contact spring assembly.

Characterized in that the bracing element orthogonal to the main axis (Z) of the support spring-contact spring assembly is positioned and fixed to just this, the dimensional stability of the support spring-contact spring assembly is ensured with plugged and not plugged pin.

In a further advantageous embodiment, the strut element has tabs for limiting the inserted connection wire.

Suitably, the Polklemmenkomponente the Steckdosenpolkontakts is integrally formed and bent from a corresponding punched copper alloy sheet.

Furthermore, the support spring contact spring assembly of the socket contact is also formed in one piece and from a suitably punched metal with spring properties, such as a stainless steel sheet, bent. Alternatively, it is also possible to carry out the support spring contact spring assembly in two parts or three parts.

Furthermore, the support spring-contact spring assembly of the socket Polkontakts is also formed in one piece and from a suitably punched metal with spring properties, in particular stainless steel sheet, bent. Alternatively, it is also possible to carry out the support spring contact spring assembly in two parts or three parts.

The invention will be explained below with reference to the embodiments illustrated in the drawings. Show it:

1 3 is a perspective view of an exemplary pole terminal component and an exemplary spring support contact spring assembly of a prior art female terminal contact;

2 4 is a perspective view of the prior art pole terminal assembly assembled from the pole terminal component and the spring-contact spring assembly;

3 a perspective view of a first exemplary embodiment of the invention Steckdosenpolkontaktes,

4 an enlarged perspective view of the end stop, which holds the conductor entries in position,

5 . 6 a perspective view of an exemplary second embodiment of the invention Steckdosenpolkontaktes, and

7 . 8th . 9 Perspective views of other embodiments of the support spring-contact spring assembly of the invention Steckdosenpolkontaktes.

In the 1 FIG. 12 is a perspective view of an exemplary pole terminal component. FIG 3 and an exemplary support spring contact spring assembly 19 a Steckdosenpolkontaktes, hereinafter also referred to as Polpfemmenbaugruppe, according to the prior art shown, from which the invention proceeds.

• • einer Polklemmenkomponente 3 (siehe linke Abbildung) aus einer Kupferlegierung (z. B. einem Kupfer-Zink-Material) für die elektrische Funktion, d. h. die Stromleitung, und
• • einer Stützfeder-Kontaktfeder-Baugruppe 19 (siehe rechte Abbildung) aus einem Metall mit guten Federeigenschaften, beispielsweise Edelstahl.

The pole terminal assembly is composed of the two integral main components:

• • a pole terminal component 3 (see left picture) of a copper alloy (eg a copper-zinc material) for the electrical function, ie the power line, and
• • a support spring contact spring assembly 19 (see right figure) made of a metal with good spring properties, such as stainless steel.

The pole terminal component 3 has a first contact leg 4 and a second opposing contact leg 5 on, with each of these contact legs 4 . 5 end with a contact tulip 6 . 7 is provided. Each of the two contact legs 4 . 5 goes over into a molded thigh web 13 ,

At the two thigh webs 13 are each hollow channel-shaped respectively in profile U-shaped conductor entries 14 . 15 arranged, which are provided for insertion or insertion of the conductors, such as phase conductors and neutral of a 230 V AC mains.

To define a defined rest position, there is one stop each 8th . 9 on the contact legs 4 . 5 molded, these two attacks 8th . 9 in rest position, ie with not plugged pin, press against each other. The contact legs additionally prevent the detachment of the Polklemmenbaugruppe from the associated socket base, especially when pulling out the inserted pin connector.

The, preferably, one-piece executed support spring-contact spring assembly 19 has a first support spring arm 20 and a second opposing support spring arm 21 on, these two support spring arms 20 . 21 via a support spring bridge 24 U-shaped are interconnected.

The support spring bridge 24 indicates at its first not with the support spring arms 20 . 21 connected outer edge side by side two molded contact spring arms 25 . 26 on, wherein the contact spring arms 25 . 26 the for a conductor clamp against the U-shaped conductor entries 14 . 15 apply required clamping force.

The support spring bridge 24 does not indicate on its second with the support spring arms 20 . 21 connected outer edge (opposite to the first outer edge) side by side two molded locking arms 27 . 28 on, next to a locking arm 27 . 28 one unlocking arm each 29 . 30 is arranged.

The locking arms 27 . 28 press end against an inserted conductor and cause such a locking of the conductor. Once a force on one of the unlocking arms 29 . 30 is exercised, which is done by a not shown "spring remover" respectively a "spring release plate", the relevant locking arm releases 27 . 28 end of the inserted conductor, whereby this can be pulled out and the contact can be interrupted.

In the 2 FIG. 12 is a perspective view of the pole clamp component. FIG 3 and the support spring contact spring assembly 19 assembled pole terminal assembly 1 out 1 shown.

With the reference numerals 10 and 11 are the leg webs of the support spring contact spring assembly 19 designated. The molded-on support spring arms 20 . 21 the support spring contact spring assembly 19 form outer springs and transmit a spring force on the two contact legs 4 . 5 the pole terminal component 3 so as to exert a defined high holding force on an inserted pin connector.

Both the contact spring arms 25 . 26 as well as the locking arms 27 . 28 (please refer 1 ) engage in the hollow channel conductor entries 14 . 15 in order to form retaining springs for the conductors in this way and to accomplish both the clamping and the locking of the inserted conductors. Alternatively, the line clamp can be made einschenklig, ie the structural components 25 and 27 respectively. 26 and 28 out 1 are summarized so that only one leg fulfills the holding function.

3 shows an exemplary first embodiment of the invention Steckdosenpolkontaktes 1 , which consists of the support spring contact spring assembly 19 and the Polfederkomponente 3 consisting of two conductor entries 14 . 15 and two opposing contact legs 4 . 5 each with end-side contact tulips 6 . 7 for the introduction and clamping of a pin is composed.

The support spring contact spring assembly 19 is made of a metal with spring characteristics and two against the contact legs 4 . 5 the pole component 3 pressing support spring arms 20 . 21 formed, which provide the clamping force for the clamping of the connector pin and a contact spring with two contact spring arms 25 . 26 as well as two locking arms 27 . 28 (as in 2 shown) ensure the clamping force for the conductor clamp and the conductor lock.

For bracing the pole contact 1 is a designed as a separate component sheet metal tab 12 over the thigh webs 10 . 11 the support spring contact spring assembly 19 joined, so the support spring arms 20 . 21 the support spring contact spring assembly 19 together. The tin plate 12 is preferably made of metal and is primarily used around the support spring of the support spring contact spring assembly 19 Close at the open side, thus providing optimum power transmission of the support spring. In a preferred embodiment, the sheet metal tab 12 with molded after their mounting on the leg webs 10 . 11 the support spring contact spring assembly 19 inside tabs 18 provided, whereby the through the conductor entries 14 . 15 the pole terminal assembly 1 introduced wire is limited in an advantageous manner. Furthermore, outer plates 17 for the clamping of the leg webs 10 . 11 formed. The positioning of the sheet metal tab 12 via provided recesses on the leg webs and on the molded outer plates 17 ,

Next to the locking arms 27 . 28 each is a Entriegelungsarm 29 . 30 an unlocking arranged, the force acting on one of the Entriegelungsarme 29 . 30 the respective locking arm 27 . 28 each end of the inserted conductor dissolves.

According to the invention is an end stop 2 provided, which directly from the Polklemmenmaterial the Polklemmenkomponente 3 punched, then formed or bent and placed in position, and the conductor entries 14 . 15 holds on its mutually facing sides during insertion and in the inserted state the inserted pin of a plug at a distance.

The above is a one-piece support spring contact spring assembly 19 went out. Alternatively, it is of course also possible, the support spring-contact spring assembly 19 form two parts or three parts.

4 shows an enlarged perspective view of the preferably designed as a flap end stop 2 which the ends of the conductor entries 14 . 15 keeps at a distance and ensures the function of the release spring.

The 5 and the 6 show a perspective view of an exemplary second embodiment of the invention Steckdosenpolkontaktes 1 with one before and after assembly as a pin, cylinder or wire element 22 executed strut element.

The X, Y, and Z axes of the support spring contact spring assembly 19 are represented by arrows. The X and Y axes are perpendicular to the main axis Z of the support spring contact spring assembly 19 , The bracing element is orthogonal to the main axis Z of the support spring contact spring assembly 19 positioned and fixed, reducing the dimensional stability of the support spring-contact spring assembly 19 is ensured with plugged and not plugged pin.

As a pin, cylinder or wire element 22 executed strut element is through openings provided 23 in the thigh webs 10 . 11 the support spring contact spring assembly 19 led so as the support spring arms 20 . 21 the support spring contact spring assembly 19 hold together and to limit the inserted conductor in an advantageous manner in its position, which through the conductor entries 14 . 15 the pole terminal assembly has been inserted.

The pin, cylinder or wire element 22 is configured at at least one end so that means are provided which the pin, cylinder or wire element 22 fix or jam and thus the force required for the compression of the support spring arms 20 . 21 applies. The pin, cylinder or wire element 22 is replaced by z. Example, have a conical design, be provided with thread and screw or executed by bending, deformation, embossing, welding the ends of the pin, positioned and secured against falling out.

Also in this embodiment of the invention Polkontaktes 1 is between the conductor entries 14 . 15 on the free end of the conductor entries 14 . 15 pointing side of the two unlocking arms 29 . 30 the end stop 2 shown which the conductor entries 14 . 15 spaced at their facing sides during insertion and in the inserted state of the connector pin.

The 7 . 8th and 9 show a perspective view of another embodiment of the support spring-contact spring assembly 19 the Steckdosenpolkontaktes invention 1 with one on one of the support spring arms 20 . 21 the support spring contact spring assembly 19 molded bracing element 16 , which is bent in the assembled state (see 8th . 9 ). They are essentially the same building components 10 . 11 . 20 . 21 . 25 . 26 . 28 and 29 to recognize.

The bracing element 16 is, preferably designed as a rectangular - and bendable sheet metal tab and forms with one of the support spring arms 20 . 21 the support spring contact spring assembly 19 a one-piece component (see in particular 7 ). The bracing element 16 indicates in a preferred Embodiment also tabs 18 for limiting the inserted lead wire.

Furthermore, the bracing element 16 with an opening 31 provided by means of the strut element 16 during installation of the socket contact 1 with its free end in a tab 32 on the first support spring arm 20 the support spring contact spring assembly 19 inserted or pushed to the bracing element 16 on the support spring contact spring assembly 19 by deformation of the tab 32 secure and the support springs of the support spring contact spring assembly 19 together.

For secure attachment of the strut element 16 is the first support spring arm 20 designed so that the bracing element 16 after its bending is positively connected with this. This is the bracing element 16 with his mouth 31 at its free end on the design 33 of the first support spring arm 20 Voted.

Again, the X, Y and Z axes are the support spring contact spring assembly 19 represented by arrows. The tin plate 16 is orthogonal (along the X-axis) to the main axis Z of the support spring contact spring assembly 19 positioned and fixed, reducing the dimensional stability of the support spring-contact spring assembly 19 is ensured with plugged and not plugged pin.

LIST OF REFERENCE NUMBERS

1

Plug-in pole contact, pole terminal module

2

geometric body, end stop, tab spacing the first and second conductor leads

3

Polklemmenkomponente

4

first contact leg of the contact spring

5

second contact leg of the contact spring

6

first contact tulip of the contact spring

7

second contact tulip of the contact spring

8th

first stop for rest

9

second stop for rest position

10

first leg web of the support spring contact spring assembly

11

second leg web of the support spring contact spring assembly

12

Embodiment of the strut element as a U-shaped sheet metal tab

13

molded leg web of the Polklemmenkomponente

14

first conductor introduction

15

second conductor introduction

16

Embodiment of the bracing element as a formed on a Stützfederarm sheet metal tab

17

Outer tab for clamping the sheet metal tab 12

18

Tab for limiting the inserted connecting wire / conductor

19

Support spring contact spring assembly

20

first support spring arm

21

second support spring arm

22

Embodiment of the strut element as a pin, cylinder, wire element

23

Opening for receiving the strut element 22

24

Support spring bridge for connecting the support spring arms together

25

first contact spring arm

26

second contact spring arm

27

first locking arm

28

second locking arm

29

first Entriegelungsarm the Entriegelungsfeder

30

second Entriegelungsarm the Entriegelungsfeder

31

Opening in the tin plate 16

32

Tab on one of the support spring arms of the support spring-contact spring assembly for connecting the strut element 16 with the support spring

33

junction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102013005143 A1 [0003]

Claims (10)

Socket pole contact for a socket insert composed of a pole terminal component ( 3 ) and a support spring contact spring assembly ( 19 ), wherein • the pole terminal component ( 3 ) from two conductor entries ( 14 . 15 ) and two opposing contact legs ( 4 . 5 ) is assembled for insertion and clamping of a plug pin and covers the electrical function of the power line from the conductor to the plug pin, and • the support spring contact spring assembly ( 19 ) is formed of a metal with spring properties and covers the mechanical function, wherein • this two the contact legs ( 4 . 5 ) compressive support spring arms ( 20 . 21 ) provide the clamping force for the clamping of the plug pin, and via a contact spring with at least one contact spring arm ( 25 . 26 ) and at least one locking arm ( 27 . 28 ), provide the clamping force for the conductor clamp and the conductor lock, • next to the locking arm ( 27 . 28 ) each one unlocking arm ( 29 . 30 ) an unlocking spring is arranged, which upon application of force to one of the unlocking arms ( 29 . 30 ) the respective locking arm ( 27 . 28 ) at the ends of the inserted conductor, characterized in that • between the conductor entries ( 14 . 15 ) on the free end of the conductor entries ( 14 . 15 ) facing side of the release spring an end stop ( 2 ) is arranged, which the conductor entries ( 14 . 15 ) spaced apart. Steckdosenpolkontakt according to claim 1, characterized in that the end stop ( 2 ) is designed as a tab. Plug pole contact according to one of the preceding claims, characterized in that the end stop ( 2 ) directly from the pole clamp material of the pole terminal component ( 3 ), then formed or bent and brought into position so as to guide the conductors ( 14 . 15 ) Keeps at its facing sides during insertion and in the inserted state the inserted pin of a plug at a distance. Steckdosenpolkontakt according to any one of the preceding claims, characterized in that a strut ( 12 . 16 . 22 ) the support spring arms ( 20 . 21 ) of the support spring contact spring assembly ( 19 ) holds together. Plug pole contact according to claim 3, characterized in that the strut element ( 12 ) is designed as a sheet metal tab. Steckdosenpolkontakt according to claim 3 or 4, characterized in that the strut element ( 16 ) is designed as a separate component, which over the leg webs ( 10 . 11 ) of the support spring contact spring assembly ( 19 ) is pushed or connected to these. Steckdosenpolkontakt according to one of claims 4 or 5, characterized in that the sheet metal tab ( 12 . 16 ) Outer straps ( 17 ) for the clamping of the leg webs ( 10 . 11 ) and tabs ( 18 ) for limiting an inserted lead wire. Steckdosenpolkontakt according to claim 3 or 4, characterized in that the strut ( 16 ) on one of the support spring arms ( 20 . 21 ) of the support spring contact spring assembly ( 19 ) molded part, which is the leg webs ( 10 . 11 ) of the support spring contact spring assembly ( 19 ) connects to each other. Plug pole contact according to claim 3, characterized in that the strut element ( 22 ) is designed as a pin, cylinder or wire element, which through openings provided ( 23 ) in the leg webs of the support spring contact spring assembly ( 19 ) is guided. Steckdosenpolkontakt according to any one of the preceding claims, characterized in that the socket contact is inserted in socket inserts of flush-mounted, surface-mounted or portable sockets.

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