EP3439118A2 - Screw system, screw connector and method for producing a screw connector - Google Patents

Abstract

The present invention relates to a screw system (300), a female and male screw connector (100, 200), and a method of manufacturing a screw connector. The screw system (300) has the female screw connector (100) and the male screw connector (200) which are screwed together.

The female screw connector (100) has:
- A female screw ring (160) having a male end, into which a male screw ring (260) of the male screw connector (200) can be screwed, and
- A female shield housing (170) for at least partially shielding the female screw connector (100).

The male screw connector (200) has:
- The male screw ring (260) having a male end which is screwed into the male end of the female screw ring (160), and
a male shield housing (270) for at least partially shielding the male screw connector (200).

The female screw connector (100) also has a female shield contact ring (130) which in an assembled state electrically connects the female screw ring (160) and the female shield housing (170), and / or the male screw connector (100) also has one male shield contact ring (230) which in the assembled state electrically connects the male screw ring (160) and the male shield housing (270).

Description

The invention relates to a screw or plug-in system, a female and male screw or circular connector and a method for producing a screw or circular connector.

The invention is in the field of connector technology, in particular in the field of circular connectors, ie connectors with e.g. Such circular connectors, in particular M12 circular connectors, are used, for example, for the electrical contacting and / or connection of industrial Ethernet Furthermore, such circular connectors are often subject to mechanical stresses, such as Eg vibration through connected machines, exposed, so these circular connectors should be designed for mechanical loads and in particular have a threaded ring with a thread with which the connector can be screwed and secured.

Circular connectors are usually arranged on a cable end and are used for contacting a complementary circular connector and / or a complementary circular connector socket. An important feature of circular connectors is their shielding property against electromagnetic radiation to thereby ensure a high quality of the signals transmitted through the connector. For this purpose, the circular connector has a corresponding shield housing. The shielding effect can be enhanced by the shield housing is electrically connected to the screw ring of the connector. An electrical connection of the screen housing with the screw ring of the connector is also important for the Screw together the connector with a complementary connector the respective shielding housing are electrically connected to each other via the bolted screw rings.

Conventionally, this is achieved in that the screw ring of a circular connector in the fully screwed together or assembled state directly contacted the shield housing of the circular connector.

In the context of the present invention, however, it has been found that in practice the connectors to be connected are not always completely screwed together or are e.g. the screw connection loosens or loosens as a result of vibrations or mechanical stress. This can have the consequence that the screening effect of the plugged together or bolted connector decreases, since the electrical contact between the screw ring and screen housing deteriorates or no longer exists.

It is therefore an object of the present invention to provide a female and male screw connector and system, respectively, which have an improved and reliable shielding effect. In addition, a method for producing an improved screw connector is to be specified.

This object is solved by the subject matters of the independent claims. Preferred embodiments of the invention are the subject of the dependent claims.

• einen weiblichen Schraubring mit einem einsteckseitigen Ende, in das ein männlicher Schraubring des männlichen Schraubverbinders einschraubbar ist, und
• ein weibliches Schirmgehäuse zum zumindest teilweise Abschirmen des weiblichen Schraubverbinders;

wobei der männliche Schraubverbinder aufweist:

• den männlichen Schraubring mit einem einsteckseitigen Ende, das in das einsteckseitige Ende des weiblichen Schraubrings einschraubbar ist, und
• ein männliches Schirmgehäuse zum zumindest teilweise Abschirmen des männlichen Schraubverbinders; wobei

der weibliche Schraubverbinder einen weiblichen Schirmkontaktring aufweist, welcher in einem montierten Zustand den weiblichen Schraubring und das weibliche Schirmgehäuse elektrisch miteinander verbindet, und/oder
der männliche Schraubverbinder einen männlichen Schirmkontaktring aufweist, welcher im montierten Zustand den männlichen Schraubring und das männliche Schirmgehäuse elektrisch miteinander verbindet.A first independent aspect for achieving the object relates to a screw system with a female screw connector and a male screw connector, which can be screwed together,
wherein the female screw connector comprises:

• a female threaded ring with a male end, into which a male screw ring of male screw connector is screwed, and
• a female shield housing for at least partially shielding the female screw connector;

wherein the male screw connector comprises:

• the male screw ring with a male end which is screwed into the male end of the female screw ring, and
• a male shield housing for at least partially shielding the male screw connector; in which

the female screw connector has a female shield contact ring which in an assembled state electrically connects the female screw ring and the female shield housing, and / or
the male screw connector has a male shield contact ring which in the mounted state electrically connects the male screw ring and the male shield housing.

The female screw or plug connector and the male screw or plug connectors are designed and provided to be plugged with their insertion-side end in the insertion direction into one another and / or screwed, wherein they enter into a plug-in or screw connection with each other. The male screw connector is formed substantially complementary to the female screw connector and vice versa.

The screw system can be designed in particular as a system with M12 screw or plug connectors. Both the female and the male screw connector each have a screw ring and a, in particular cylindrical, shield housing.

The screwing system may comprise further elements, such as one or two insulating bodies, one or two sealing rings for sealing the connectors and / or one or two Hemmringe that hinder unintentional release of the connector and / or reduce, ie for securing the Plug connection.

In particular, the female screw connector and the male screw connector can be inserted into each other along with a plug-in end along a plug-in direction. In this case, the female screw connector in addition to the female screw ring and the female shield housing preferably has a female insulating body which can be arranged in the interior of the female screw ring and which can be inserted along the insertion direction into a male insulating body of the male screw connector. Accordingly, the male screw connector in addition to the male screw ring and the male shield housing preferably on the male insulating body, which can be arranged in the interior of the male screw ring and in which the female insulating body along the insertion direction can be inserted.

The female screw connector has a male end, and an end (e.g., cable end) remote from the male end, on which a cable may be disposed. The male end of the female connector may be configured and provided to be inserted into the male end of the male connector. Facing away from the male end of the male connector, the male connector has an opposite end (e.g., cable end) to which a cable may be attached to the male screw connector.

The female and male screw ring are complementary to each other and designed to be screwed into each other and / or each other, thereby securing a plug connection. The female and male screw ring are at least partially or completely formed of a conductive material, in particular of metal. In the interior of each of the two screw rings, a female or male insulating body, ie an electrically non-conductive element, can be arranged. Both insulators may substantially have the shape of a cylinder around which the respective screw ring is arranged. The respective screw ring can thereby rotate about the cylinder axis of the respective Insulating body may be arranged, which may coincide with the insertion and the ring interior of the respective screw ring is arranged piercing. Each screw ring and each insulating body may also each have a plug-in end, which is in each case designed and provided to physically contact the plug-in end of the respective complementary component.

The female insulating body may include female electrical contacts (e.g., contact sockets and / or female contact pins) into which male electrical contacts of the male insulating body are inserted when the two screw connectors are mated together. As is common with M12 connectors, the female insulator may have a plurality of female electrical contacts, e.g. five.

The male insulating body may also have a plurality of male electrical contacts (e.g., contact pins), for example the same number as the female insulating body, in the example also five. Both male and female electrical contacts may be electrically and / or physically connected to wires of a cable, each of which may be disposed on the end of the insulator. In this case, the tail is arranged opposite the insertion end opposite. When the two screw or plug connectors make a plug connection with each other, the male contacts contact the female contacts and vice versa both electrically and physically.

The female and the male insulating body are complementary to each other and intended to be inserted into each other. The insulating body are formed of an electrically insulating material, for example of a plastic. The insulators provide electrical insulation between the individual electrical contacts, between the screw ring (s) and the electrical contacts, and optionally also between the screen (s) and the electrical contacts.

By screwing the two screw rings, the connector is secured against mechanical stresses, e.g. to vibration of a machine and / or inadvertent loading of the cable, such as tripping over the cable.

Each of the two insulating bodies may have a plug-in end which is designed to enter into the plug connection with the plug-in end of the associated second insulating body. At the opposite end of the respective insulator each end piece is arranged with a constant outer diameter. This end piece can in each case be arranged adjacent to the cable, with which the electrical contacts of the insulating body are contacted. Both end pieces, ie both the end piece of the male insulating body and the end piece of the female insulating body, may have the same constant outer diameter. This makes it possible to set up a shielding housing of the same design on both end pieces. In other words, a shield housing can be plugged onto the end piece of the female insulating body, which is constructed identically to a second shield housing which can be plugged onto the end piece of the male insulating body.

The female and male shield housings are electrically conductive, in particular made of metal, in order to provide the required electrical shielding effect. Furthermore, the shield housing is formed substantially in the form of an elongated cylinder having only a cylinder jacket, but neither a cylinder bottom nor a cylinder cover. The female and male shielding housings are thus substantially tubular.

In the context of the invention, it is meant that "substantially" a property is fulfilled that at least 90% of this property is fulfilled, preferably at least 95%, particularly preferably at least 99%. In particular, this property can be 100% satisfied.

Thus, the umbrella housing is substantially in the shape of a cylinder with no bottom and lid, that the shape of the screen housing at least 90%, preferably 95%, etc. corresponds to that of such a cylinder. In this cylinder, however, for example, small holes and / or grooves may be formed which deviate from the hundred percent strict shape of a cylinder.

The same or the like applies to the inner diameter of the screen housing, which is preferably substantially constant, ie not more than 10%, preferably 5%, or more preferably deviates by a maximum of 1% from its constant value. The inner diameter is also constant over substantially the entire cylinder height, i. over at least 90%, 95%, 99% or 100% of the total cylinder length. For example, at one end the shield housing may be slightly flared to facilitate attachment of the shield housing to the tail. Therefore, the inner diameter and outer diameter of the shield case and the end piece do not have to correspond 100%, or even exactly over 100% of the length of the shield case.

The inner diameter of the shield housing can be matched to the predetermined outer diameter of the two end pieces. These diameters and in particular the components of the insulating body and shielding housing are preferably coordinated so that in each case a shielding housing can be placed on one of the end pieces of an insulating body.

Here, the shape of the insulating body can be formed as simple as possible. Namely, the shape of the insulating body may substantially correspond to that of a cylinder having a constant cylinder diameter. Furthermore, the two screen housing can be constructed identical, which allows a simplified production of the shield housing.

The end piece of the female insulating body and the end piece of the male insulating body can be designed and provided to be plugged into an associated shielding housing whose inner diameter is less than 5%. greater than the predetermined outer diameter of the two end pieces is formed. The outer diameter of the end pieces can be matched to the inner diameter of the shield housing. This means that the two diameters essentially correspond, that is, they are substantially the same size. In this case, the inner diameter of the shield housing may be formed a little larger than the outer diameter of the end pieces to allow easy insertion of the components into each other.

The female screw connector has a female shield contact ring which in an assembled state electrically connects the female screw ring and the female shield housing. Alternatively or additionally, the male screw connector has a male shield contact ring, which in the mounted state electrically connects the male screw ring and the male shield housing.

In the context of the present description, a mounted state is understood to mean a state in which the female or the male screw connector is used as intended and / or is properly mounted, assembled or screwed together. In particular, a mounted state is understood to mean that the female or male screw connector is screwed together with a complementary screw connector. An assembled state may therefore also be referred to as an assembled state, a composite state, a bolted-together state, and / or an operating state. In other words, the assembled state of a screw or screw system denotes a proper arrangement or installation position of the individual elements of the screw or screw.

In other words, the female shield contact ring is designed and / or provided to electrically connect the female screw ring and the female shield housing, in particular in an assembled state. Accordingly, the male umbrella contact ring is designed and / or determines to electrically connect the male screw ring and the male shield housing, in particular in a mounted state, with each other. The female and male shield contact ring are at least partially or completely formed of a conductive material, in particular of metal.

The shield contact ring is in addition to the screw ring basically a separate element of the screw. However, the shield contact ring can be inserted into the interior of the screw ring and connected in a rotationally fixed manner to the screw ring and / or fixed thereto. In particular, the screen contact ring is inserted into the interior of the screw ring in the assembled state and rotatably connected to the screw ring and / or fixed thereto.

Compared to conventional circular connectors, in which the screw can only contact the screen housing of the circular connector in fully assembled or assembled state, the physical and electrical contact between the screw ring and screen housing is done according to the invention alternatively or additionally to direct contact via an extra for the electrical contact provided shield contact ring.

Thus, it is advantageously ensured that even if the screw ring is not completely screwed or when the screw ring loosens or loosens something, there is an electrical contact between screw ring and shield housing. In this way, an improved and reliable shielding effect can be achieved.

In a preferred embodiment, the female shield contact ring is arranged in the mounted state in a guide groove of the female screw ring. Alternatively or additionally, the male shield contact ring is arranged in the assembled state in a guide groove of the male screw ring. The guide groove is arranged in each case in the interior or on an inner surface of the female and male screw ring. In other words, the female screw ring for receiving the female shield contact ring and the male screw ring for Recording the male shield contact ring trained. In the assembled state of the female or male shield contact ring with the female or male screw ring is rotatably connected.

In a further preferred embodiment, the female shield contact ring on at least a first female spring element, which in the mounted state, the female shield housing, in particular an edge region or a shoulder of the female shield housing, contacted. Alternatively or additionally, the male shield contact ring has at least one first male spring element, which in the assembled state contacts the male shield housing, in particular an edge region or a shoulder of the male shield housing. Preferably, the female and the male shield contact ring are each formed as an open ring, in particular as a snap ring. Further preferably, each of the first spring element is formed at an end portion of the open ring. The at least first female or male spring element is preferably designed and / or provided, in the mounted state, to contact the female or male shielding housing, in particular an edge region or a shoulder of the female or male shielding housing. In this case, the at least first spring element is deformed resiliently in the assembled state, i. compressed or compressed, so that it exerts a certain restoring force on the screen housing or a shoulder thereof due to its resilient and in particular elastic properties. This advantageously causes improved electrical contact between the shield housing and the screw ring. Since the shield contact ring is rotatably connected in the assembled state with the screw ring, the shield contact ring and thus the at least one spring element moves when screwing in and unscrewing the screw relative to the shield housing and thus forms a sliding contact.

In a further preferred embodiment, the female shield contact ring on a second female spring element, which contacts the female shield housing in the mounted state. Alternatively or additionally the male shield contact ring on a second male spring element, which contacts the male shield housing in the assembled state.

Specifically, the second female and male spring members have the same features as the above-described first female and male spring members except that the second female and male spring members are not disposed at one end portion of the umbrella contact ring, but preferably at a middle portion of the umbrella contact ring.

In a further preferred embodiment, the female screw ring has a fastening engagement and the female shield contact ring has an associated fastening element, which in the mounted state is arranged in the fastening engagement of the female screw ring. Alternatively or additionally, the male screw ring has a fastening engagement and the male shield contact ring has an associated fastening element, which in the mounted state is arranged in the fastening engagement of the male screw ring. The fastening engagement is formed on an inner surface of a screw ring. With the help of the fastening engagement and the fastening element, the shield contact ring can be connected in a rotationally fixed manner to the respective screw ring or fixed thereto.

In a further preferred embodiment, the female shield contact ring on a second female spring element, which contacts the female shield housing in the assembled state and is part of the fastening element of the female shield contact ring. Alternatively or additionally, the male shield contact ring on a second male spring element, which contacts the male shield housing in the assembled state and is part of the fastening element of the male shield contact ring. In particular, the attachment element of a shield contact ring preferably has two attachment lugs and the second spring element. The fastening lugs are designed and intended to be engaged with the fastening engagement of the screw ring and thus the Fix the shield contact ring on the screw ring in a torque-proof manner. Preferably, the second spring element, in particular as a projection or tongue, extends substantially radially into the interior of a screen contact ring, ie substantially perpendicular to the plug-in direction, in order to contact the screen housing in the mounted state. In particular, the second spring element is designed and provided to press in the mounted state with a certain restoring force on the screen housing or an edge region or a shoulder of the screen housing. Like the first spring element, the second spring element also acts as a sliding contact.

With the help of the second spring element, the electrical contact between the shield housing and screw ring in the assembled state can be further improved. The same also applies to the shielding effect of the female or male screw connector or the screw system.

In a further preferred embodiment, the female shield housing has a screening on an outer surface of the female shield housing. Further, the female shield contact ring on a female inhibitor which is engageable with the screening of the female shield housing or which is in the assembled state in engagement with the screening of the female shield housing. Alternatively or additionally, the male shield housing has a screening on an outer surface of the male shield housing. Further, the male shield contact ring on a male inhibitor, which is engageable with the screening of the male shielding housing or which is in the mounted state in engagement with the screening of the male shielding housing. The female and male inhibitor are preferably formed as a spring element. In this way, the female or male umbrella contact ring advantageously also serves as Hemmring.

In a further preferred embodiment, the female screw connector further comprises a female insulating body which can be arranged inside the female screw ring and which can be inserted along a plug-in direction into a male insulating body of the male screw connector. Accordingly, the male screw connector further comprises the male insulating body, which is arrangeable in the interior of the male screw ring and in which the female insulating body along the insertion direction can be inserted. The female insulating body has a ratchet on its outer surface and the female shield contact ring has a female inhibiting member which is engageable with the grid of the female insulating body or which is in the mounted state in engagement with the grid of the female insulating body. Alternatively or additionally, the male insulating body has a screening on its outer surface and the male shield contact ring on a male inhibitor, which is engageable with the screening of the male insulating body or in the assembled state in engagement with the screening of the male insulating body. In this way, the female or male umbrella contact ring advantageously also serves as Hemmring. The shield contact ring or Hemmring can engage by means of the Hemmelements in the associated screening of the insulator. Here, the outer surface of the insulating body faces the inner surface of the associated screw ring.

About the shield contact ring, which additionally acts as Hemmring by engaging by means of Hemmelements in the screening of the screen housing or insulating, the bolted connector is advantageously secured against unintentional unscrewing and thus against inadvertent release of the connector. In particular, since circular connectors are often used to electrically connect heavy machinery, these connectors are often exposed to vibrations that can loosen the threaded connection over time. With the help of a screen ring acting as Hemmring thus both the shielding effect and the stability of a female and male screw or a screw system can be improved in a simple and cost-effective manner.

In a further preferred embodiment, the female shield contact ring is formed as an open ring or as a snap ring with a first and second end portion. The first female spring element is at the first end portion of the female shield contact ring and the female inhibitor is formed on the second end portion of the female shield contact ring. Alternatively or additionally, the male shield contact ring is formed as an open ring or snap ring with a first and second end portion. The first male spring element is formed on the first end portion of the male shield contact ring and the male inhibitor is formed on the second end portion of the male shield contact ring.

In a further preferred embodiment, the first female spring element and the female retainer are each formed as a taper of the female shield contact ring. In addition, the first female spring element with respect to the female Hemmelements along an axial direction of the female shield contact ring is offset by a distance d. Preferably, the distance d is about 1 mm. When assembled, the first female spring element is thus in the direction of the female shield housing with respect to the female locking element, i. in the insertion direction E, offset. Alternatively or additionally, the male inhibitor is formed as a taper of the male shield contact ring to be engaged only in the assembled state only with the grid of the male insulating body, while the first male spring element contacts the male shield housing.

In this way it is possible with only a single additional element, namely with the help of the Schirmkontaktaktrings, to improve both the shielding and the stability of the female and male screw connector or the screw system.

• einen weiblichen Schraubring mit einem einsteckseitigen Ende, in das ein männlicher Schraubring eines männlichen Schraubverbinders des Schraubsystems einschraubbar ist, und
• ein weibliches Schirmgehäuse zum zumindest teilweise Abschirmen des weiblichen Schraubverbinders,

wobei der weibliche Schraubverbinder einen weiblichen Schirmkontaktring aufweist, welcher in einem montierten Zustand den weiblichen Schraubring und das weibliche Schirmgehäuse elektrisch miteinander verbindet.Another independent aspect for achieving the object relates to a female screw connector for a screw system, comprising:

• a female screw ring with a male end, into which a male screw ring of a male screw connector of the screw system can be screwed, and
• a female shield housing for at least partially shielding the female screw connector,

wherein the female screw connector has a female shield contact ring which in an assembled state electrically connects the female screw ring and the female shield housing.

• einen weiblichen Isolierkörper, der im Inneren des weiblichen Schraubrings anordenbar ist und der entlang einer Einsteckrichtung in einen männlichen Isolierkörper des männlichen Schraubverbinders des Schraubsystems einsteckbar ist,

auf. Weiter vorzugsweise ist das weibliche Schirmgehäuse auf einem Endstück des weiblichen Isolierkörpers anordenbar.Preferably, the female screw connector further

• a female insulating body, which can be arranged in the interior of the female screw ring and which can be inserted along a plug-in direction into a male insulating body of the male screw connector of the screw system,

on. Further preferably, the female shielding housing can be arranged on an end piece of the female insulating body.

• einen männlichen Schraubring mit einem einsteckseitigen Ende, das in einen weiblichen Schraubring eines weiblichen Schraubverbinders des Schraubsystems einschraubbar ist, und
• ein männliches Schirmgehäuse zum zumindest teilweise Abschirmen des männlichen Schraubverbinders,

wobei der männliche Schraubverbinder einen männlichen Schirmkontaktring aufweist, welcher in einem montierten Zustand den männlichen Schraubring und das männliche Schirmgehäuse elektrisch miteinander verbindet.Another independent aspect for achieving the object relates to a male screw connector for a screw system, comprising:

• a male screw ring with a male end which is screwed into a female screw ring of a female screw connector of the screw system, and
• a male shield housing for at least partially shielding the male screw connector,

wherein the male screw connector comprises a male shield contact ring which in an assembled state electrically connects the male screw ring and the male shield housing.

• einen männlichen Isolierkörper, der im Inneren des männlichen Schraubrings anordenbar ist und in den entlang einer Einsteckrichtung E ein weiblicher Isolierkörper des weiblichen Schraubverbinders des Schraubsystems einsteckbar ist, auf. Weiter vorzugsweise ist das männliche Schirmgehäuse auf einem Endstück des männlichen Isolierkörpers anordenbar.

Preferably, the male screw connector further

• a male insulating body which can be arranged in the interior of the male screw ring and in which along a plug-in direction E a female insulating body of the female screw connector of the screw system can be inserted on. Further preferably, the male shield housing can be arranged on an end piece of the male insulating body.

• Bereitstellen eines Schraubrings mit einem einsteckseitigen Ende, das in einen komplementären Schraubring eines komplementären Schraubverbinders des Schraubsystems einschraubbar ist, und
• Bereitstellen eines Schirmgehäuses zum zumindest teilweise Abschirmen des Schraubverbinders,

wobei ferner ein Schirmkontaktring bereitgestellt wird, welcher in einer Führungsrinne des Schraubrings anordenbar bzw. angeordnet ist und ausgelegt ist, um in einem montierten Zustand den Schraubring und das Schirmgehäuse elektrisch miteinander zu verbinden.Another independent aspect for achieving the object relates to a method for producing a screw connector for a screw system, comprising the steps:

• Providing a screw ring with a male side end, which is screwed into a complementary screw ring of a complementary screw connector of the screw system, and
• Providing a screen housing for at least partially shielding the screw connector,

wherein a shield contact ring is further provided, which is arranged in a guide groove of the screw ring and is arranged to electrically connect the screw ring and the shield housing in an assembled state with each other.

• Bereitstellen eines Isolierkörpers, der im Inneren des Schraubrings anordenbar ist und der mit einem komplementären Isolierkörper des komplementären Schraubverbinders des Schraubsystems zusammensteckbar ist. Weiter vorzugsweise ist das bereitgestellte Schirmgehäuse auf einem Endstück des Isolierkörpers anordenbar.

Preferably, the method further comprises the step

• Providing an insulating body which can be arranged in the interior of the screw ring and which can be plugged together with a complementary insulating body of the complementary screw connector of the screw system. Further preferably, the screen housing provided can be arranged on an end piece of the insulating body.

For the above-mentioned further independent aspects and in particular for related preferred embodiments, the statements made above or below apply to the embodiments of the first aspect. In particular, for an independent aspect of the present invention and for related preferred embodiments, the statements made above and below regarding the embodiments of the respective other independent aspects apply as well.

In the following, individual embodiments for solving the problem will be described by way of example with reference to the figures. In this case, the individual embodiments described have in part features which are not absolutely necessary in order to carry out the claimed subject matter, but which provide desired properties in certain applications. So should Embodiments are considered to be covered by the technical teaching described, which does not have all the features of the embodiments described below. Further, in order to avoid unnecessary repetition, certain features will be mentioned only with respect to each of the embodiments described below. It should be noted that the individual embodiments should therefore be considered not only in isolation, but also in a synopsis. Based on this synopsis, those skilled in the art will recognize that individual embodiments may also be modified by incorporating one or more features of other embodiments. It should be understood that a systematic combination of the individual embodiments having single or multiple features described with respect to other embodiments may be desirable and useful, and therefore should be considered and also included within the description.

Brief description of the drawings

FIG. 1

shows in a perspective plan view of a conventional female and male screw connector;

FIG. 2

shows a cross-sectional view through the in FIG. 1 shown screw connector;

FIG. 3

shows in a perspective view a female insulating body of a female screw connector;

FIG. 4

shows in a perspective view a male insulating body of a male screw connector;

FIG. 5

shows in a perspective view of a shield housing a screw connector;

FIG. 6

shows in a perspective view a conventional Hemmring for inhibiting a Aufdrehbewegung a screw connection between two screw connectors;

FIG. 7A

shows in a first perspective view of a female screw ring for a female screw connector;

FIG. 7B

shows in a second perspective view the in FIG. 7A shown female screw ring;

Figure 8A

shows in a first perspective view a male screw ring for a male screw connector;

FIG. 8B

shows in a second perspective view the in Figure 8A shown male threaded ring;

Figure 9A

shows in a first perspective view of a female shield contact ring according to a preferred embodiment of the present invention;

FIG. 9B

shows in a second perspective view of the female shield contact ring of Figure 9A ;

FIG. 9C

shows in a third perspective view of the female shield contact ring of Figure 9A ;

FIG. 9D

shows in a fourth perspective view of the female shield contact ring of Figure 9A ;

FIG. 10

shows a perspective view of an arrangement of the female shield contact ring of FIGS. 9A to 9D inside a female screw ring;

Figure 11A

shows a first perspective view of an arrangement of the female shield contact ring of FIGS. 9A to 9D on an insulating body and a shield housing;

FIG. 11B

shows in a second perspective view of an arrangement of the female shield contact ring of FIGS. 9A to 9D on an insulating body and a shield housing;

FIG. 11C

shows in a third perspective view of an arrangement of the female Schirmkontaktaktrings the FIGS. 9A to 9D on an insulating body and a shield housing;

FIG. 12a

shows in a perspective view a male shield contact ring according to a preferred embodiment of the present invention;

FIG. 12b

shows a perspective view of an arrangement of the male shield contact ring of FIG. 12a on an insulating body and a shield housing; and

FIG. 13

shows a screw system with a female and male screw connector according to a preferred embodiment of the present invention.

Detailed description of the drawings

The location selected in the present description, such as location. B. top, bottom, side, etc. are each related to the immediately described and illustrated figure and are mutatis mutandis to transfer to a new position to the new situation. The additional designation "female" as used in the present description for various elements is intended to indicate that these elements belong to a female screw connector. Accordingly, the additional designation "male" for various elements indicates that these elements belong to a male threaded connector.

FIG. 1 10 shows a female screw connector 100 and a male screw connector 200 in a plan view. The female screw connector 100 has female female contacts and is designed and intended to be plugged into the male screw connector 200 against a plug-in direction E such that the female socket contacts of the female screw connector Contact 100 male female contacts of the male screw connector 200 electrically. In this case, a male end 200E of the male screw connector 200 is inserted into a male end 100E of the female screw connector 100 and screwed there. Together, the two screw connectors 100 and 200 form a plug-in or screw connection of a screw system.

Each of the screw connectors 100 and 200 is each substantially elongate and extends parallel to the insertion direction E. In this case, each of the screw connectors 100 and 200 has a respective insertion end 100E and 200E, which faces the respectively associated screw connector when inserted into one another. Each of the screw connectors 100 and 200 also has its own respective male ends 100E and 200E respectively have opposite cable ends 100K and 200K adapted and intended to be connected to a cable. For example, the female screw connector 100 has the male end 100E and the cable end 100K. In this case, the insertion end 100E and the cable end 100K are arranged on opposite ends of the female screw connector 100 in the insertion direction E. The same applies to the male screw connector 200.

FIG. 2 shows a cross section through the middle of in FIG. 1 shown screw connector 100 and 200. The contacting of the respective screw can be done by a plug-in movement in the direction indicated by an arrow plug E. In this case, the insertion direction E is defined as the direction in which the female screw connector 100 must be moved in order to make a plug connection with the male screw connector 200. The plug-in direction E is arranged parallel to a non-illustrated center axis of the screw connector. The plug-in direction E is arranged substantially parallel to the current flow direction during current flow from a screw connector to a complementary screw connector connected to the screw connector.

The female screw connector 100 is formed as a female screw connector, that is, this screw connector has female socket contacts 110. The male screw connector 200 is formed as a male screw connector, which means that the screw connector has male socket contacts 210. The male receptacle contacts 210 of the male screw connector 200 are configured and intended to be inserted and plugged into the female receptacle contacts 110 of the female screw connector 100 such that each male receptacle contact 210 is in electrical contact with an associated female receptacle contact 110. The contact can be provided by a mechanical and / or an electrical contact.

The female screw connector 100 has a female shield housing 170 (see also FIG FIG. 5 ) and a female threaded ring 160 (see also the FIGS. 7A and 7B ) on. In addition, the female screw connector 100 as shown in FIG FIG. 2 shown, a female insulating 120 (see also FIG. 3 ), the female receptacle contacts 110, an outer sleeve 180 and a cable (not shown in the figures) to which the female receptacle contacts 110 may be electrically connected. The individual components of the screw connectors can be sprayed around the cable to the outer shell 180.

The male screw connector 200 has a male shield case 270 (see also FIG. 5 ) and a male screw ring 260 (see also the Figures 8A and 8B ) on. In addition, the male screw connector 100 as shown in FIG FIG. 2 shown, a male insulating 220 (see also FIG. 4 ), the male receptacle contacts 210, an outer sleeve 280, and a cable (not shown in the figures) to which the male receptacle contacts 210 may be electrically connected. The individual components of the screw connectors can be sprayed around the cable to the outer shell 280.

As also from the FIG. 2 As can be seen, the female screw connector 100 has an optional sealing ring 140, which may be formed as an O-ring and arranged in a receptacle of the female screw ring 160. The sealing ring 140 serves to seal the connector. Furthermore, the female screw 100 also has an optional Hemmring 150, which increases in Fig. 6 is shown and described in more detail below. Also, the male screw connector 200 may have a corresponding sealing ring (in the embodiment of FIG FIG. 2 not included) and / or have an inhibiting ring 250.

The female threaded connector 100 may include a plurality of female receptacles 110, each with a wire or strand of a cable, not shown can be connected. Similarly, the male screw connector 200 may include a plurality of male receptacle contacts 210, each of which may be electrically connected to wires of a cable.

The in the Figures 1 and 2 Screw connectors shown are designed as five-pin M12 screw. Such M12 screw connectors are used inter alia for connecting industrial Ethernet networks. M12 screw connectors are exposed to different mechanical loads, such as vibration loads from connected industrial machines. This is why M12 screw connectors preferably fulfill tensile and compressive loads. Thus, the screw connectors include, among other things, the screw rings 160 and 260 to provide a secure threaded connection between the male screw connector and the female screw connector. Mechanically stabilized and / or supported, the connectors are further characterized by a deep penetration of the male socket contacts 210 into the female socket contacts 110th

The individual components of a conventional screw connector are in the following FIGS. 3 to 8B described in more detail.

FIG. 3 shows the female insulating body 120 of a female screw connector 100. The female insulating body 120 is substantially formed as a solid cylinder which ends opposite to the insertion direction E at its insertion end 120E in an end face 127. Alternatively, the female insulating body 120 may also have another substantially solid, elongate shape, eg, with a square or hexagonal cross-section. The end face 127 is arranged and formed essentially perpendicular to the plug-in direction E. At the longitudinal end of the female insulating body 120 facing away from the end face 127, the female insulating body 120 has a cable end 120K to which the female female contacts may be connected by a cable. The end face 127 faces the male screw connector (not shown) in an insertion position.

The female insulating body 120 has a plug-in region 121 which can extend from the end face 127 approximately to the middle of the insulating body 120 opposite to the insertion direction E. The plug-in area 121 is designed and intended to be inserted in a plug connection into an opening 227 and into a plug-in area 221 of the male insulating body 220 of a male screw connector (cf. FIG. 4 ). The plug-in region 121 is substantially in the form of a solid cylinder whose cylinder axis is arranged parallel to the plug-in direction E. The plug-in area 121 has at a point of its outer surface a groove 126, which is formed in the cylinder jacket of the plug-in area 121 and is formed parallel to the insertion direction E. The groove 126 is designed and intended to be brought together in a plug connection with a projection 226 of the male insulating body 220 (see. Fig. 4 ). The groove 126, and the projection 226 serve to clearly define the alignment of the male and female screw connectors to each other to ensure a secure contact between mutually associated male and female female contacts.

In the end face 127 a plurality of insertion holes 123 are formed. Behind each of the insertion holes 123, a cavity in the form of a rod cylinder is formed inside the insulating body 120, within each of which a female socket contact 110 is disposed (see also FIG. 2 ).

On the side facing away from the end face 127 of the insulating body 120, a connection region 122 is formed, within which the socket contacts 110 can be electrically and mechanically contacted with wires of a cable. In the transition region between the plug-in region 121 and the connection region 122, a grid 124 is formed on the outside of the female insulating body 120. The grid 124 has a plurality of teeth and depressions, which may be formed, for example, in a triangular shape. The screening 124 serves to inhibit a screw securing the connector, which is described in more detail in the following figures.

The grid 124, and in particular the teeth of the grid 124 are radially from the outer surface of the female insulating 120 and serve as a stop for the sealing ring 140 which is placed around a portion of the plug portion 121 of the female insulator 120. On the one hand, the sealing ring 140 absorbs the plug connection between two screw connectors, on the other hand the sealing ring 140 can ensure a certain moisture density of the plug connection, e.g. according to protection class IP67.

The connection region 122 is substantially formed as a solid cylinder with a constant outer diameter. Thus, the connection region 122 forms an end piece of the female insulating body 120 with a substantially constant outer diameter, onto which the shield housing 170 (cf. Fig. 5 ) can be placed.

The female insulating body 120 further has a nub 125 on its outer surface, which can be inserted into a recess 172 of the screen housing 170 and is designed to align the screen housing 170 relative to the female insulating body 120. In the embodiment shown, the nub 125 is formed adjacent to the grid 124 at the connection region 122, ie at the end piece of the female insulating body 120 with a constant outer diameter.

FIG. 4 shows in a perspective view of the male insulating body 220 of the male screw connector 200. The male insulating body 220 has a substantially cylindrical outer surface, wherein the cylinder axis is arranged parallel to the insertion direction E. Alternatively, the male insulating body 220 may also have another substantially elongate shape that is complementary to the female insulating body, eg, with a square or hexagonal cross-section.

The male insulating body 220 has at its end, not shown, the female screw connector 100, the opening 227, which is for receiving the in FIG. 3 shown female insulating body 120 of a female Screw connector 100 is used. The male insulating body 220 is substantially formed as an elongated cylinder, which ends in the insertion direction E at its insertion end 220E with the opening 227. The insertion end 220E is disposed and formed substantially perpendicular to the insertion direction E. At the longitudinal end of the male insulating body 220 facing away from the male end 220E, the male insulating body 220 has a cable end 220K to which the male female contacts may be connected by a cable. The opening 227 faces the female screw connector 100 (not shown) in an insertion position.

In the opening 227 a plurality of male socket contacts 210 arranged parallel to the plug-in direction E are arranged such that their respective plug-in ends face the female screw connector 100, not shown.

The male insulating body 220 has within the opening 227 on one side the projection 226, which may be formed as a guide groove, for guiding and correct orientation of the groove 126 of the female insulating body 120, which may be formed as a corresponding complementary counterpart. A part of the male insulating body 220 facing the opening 227 is designed as a plug-in region 221, which is designed substantially in the shape of a cylinder jacket. Inside the plug-in area 221, the male socket contacts 210 are arranged. A portion of the insulating body 210 spaced from the opening 227 is formed as a terminal portion 222 and may be mechanically and electrically connected to wires of a cable, not shown. Inside the male insulating body 220, the male socket contacts 210 are arranged parallel to each other and parallel to the insertion direction E (see also FIG Fig. 2 ).

Substantially in the center of the male insulating body 220, a ratchet 224 is formed on the outer surface thereof along an annular portion. The ratchet 224 has teeth as well; interposed beveled indentations. The screening 224 serves, as described below, an inhibition of a screwing movement of the screw ring 260 and thus for securing the connector.

The connection region 222 is substantially formed as a solid cylinder with a constant outer diameter. Thus, the connection region 222 forms an end piece of the male insulating body 220, onto which the shielding housing 270 (cf. Fig. 5 ) can be placed.

The male insulating body 220 further has a nub 225 on its outer surface, which can be inserted into a recess 172 of the screen housing 270 and is adapted to align the screen housing 270 relative to the male insulating body 220. In the illustrated embodiment, the nub 225 is formed adjacent to the ratchet 224 at the terminal portion 222, that is, at the end portion of the male insulating body 220 having a constant outer diameter.

FIG. 5 shows a shield housing 170 for a female screw connector 100. A corresponding shield housing 270 for a male screw connector 200 may be formed identical. The shield housing 170 is substantially cylindrical in shape, more precisely substantially as a tubular cylinder jacket 174. In this case, the cylinder jacket 174 is designed and provided, the female or male socket contacts 110 and 210 at least at their wiring area 122 or 222 and possibly connected To electrically shield the wires of a cable from the outside. The shield housing 170 may be formed of a metallic material and prevent the screw connector 100 or 200 from interfering with adjacent cable lines or the like. shield. The cylinder jacket 174 has a constant inner diameter substantially over the entire cylinder height. In particular, the shield housing 170 does not have a widened or tapered screen area, but is essentially formed as a piece of pipe and can shield the connection area 122 or 222 radially outwards.

The shield housing 170 has an outer stop or a shoulder 171 at a cylinder end, on which the cylinder jacket projects outward substantially having annular thickening or broadening. The shoulder 171 serves to stop the female or male screw ring 160 and 260, respectively. To form the shoulder 171, either additional material may be provided, or the cylinder jacket 174 may be slightly bent outwards. The shoulder 171 is formed on the cylinder end of the shield case 170 which faces the insertion end and with which the shield case 170 is inserted in front of the end piece (ie, the terminal portion 122) of the female insulating body 120. The shield housing 270 is also plugged with the shoulder 171 on the terminal portion 222 of the male insulating 220.

The shoulder 171 almost completely surrounds the cylinder jacket. At a position of the cylinder jacket 174, however, the recess 172 is formed in the shoulder 171, in which the nub 125 and 225 of the female or male insulating body 120 and 220 is introduced during assembly of the screw connector, respectively.

In the cylinder jacket 174, one or more holes 173 may further be formed, which may arise during the application of a casting tool, thus e.g. in a tin die casting process.

FIG. 6 shows a conventional Hemmring 150 for a female screw connector 100. A corresponding, eg identical Hemmring 250 for a male screw is not specifically shown in the figures, but can be used in a male screw, see also FIG. 2 , The inhibiting ring 150 is formed as an open ring with an opening 153. The extent of the Hemmrings 150 in the insertion corresponds approximately to the width of the grid 124 in the insertion direction E. The Hemmring 150 is designed and intended to include the grid 124 so that a latching nose 151 engages the grid 124. The detent 151 has substantially perpendicular to the insertion direction E radially inwardly toward the central axis of the screw.

About a fastener 152 of the Hemmrings 150 of Hemmring is rotatably connected to the female screw ring 160, see also the FIGS. 7A and 7B , For this purpose, the female screw ring 160 has a fastening engagement 165, in which engages in the insertion direction E from the Hemmring 150 fastener 152 engages so that automatically upon rotation of the female screw 160 also the Hemmring 150 is rotated.

The Hemmring 150 is dimensioned by its diameter forth that on the one hand engages the grid 124 from the outside, and further dimensioned so that it comfortably, ie with a certain play, in a guide groove 163 of the female screw 160 fits, see. also the FIG. 7B , The opening 153 of the Hemmrings 150 ensures the game for the ring radius to meet this dimensioning requirements and to allow easy insertion of the Hemmrings 150 in the guide channel 163.

The inhibiting ring 150 also has one or more thickenings 154, which ensure an improved fit of the inhibiting ring 150 in the guide groove 163 of the female screw ring 160. The Hemmring 150 is conventionally made of a plastic, in particular made of a hard plastic.

In an installed position or in the mounted state, the Hemmring 150 surrounds the insulating body from the outside and is positioned so that a normal through the ring center is arranged parallel to the insertion direction E.

The FIGS. 7A and 7B show the female screw ring 160 from two different perspectives. The female screw ring 160 has on an outer side a grooved grip portion 161 for facilitating screwing the connector. The screw ring 160 is essentially designed as a hollow cylinder which has an insertion opening 162 at an insertion-side end into which the male screw ring 260 of a male screw connector can be inserted (cf. Figures 8A and 8B ). The insertion opening 162 is dimensioned such that between a terminal edge 164 of the female screw ring 160 and the Outer surface of the plug-in portion 121 of the female insulating 120 (see also FIG. 3 ) A cylinder jacket-shaped cavity for receiving the plug-in portion 221 of the insulating body 220 (see also FIG. 4 ) and a part of the male screw ring 260 of a male screw connector is formed. In a part of the end edge 164 of the fastening engagement 165 is formed so that it entrains the fastening element 152 of the Hemmrings 150 upon rotation of the female screw ring 160. The Hemmring 150 is disposed in the guide groove 163, which is formed on the inside of the female screw ring 160 adjacent to the end edge 164. The screwing of the rotary motion is arranged in a circle around the insertion direction E around. In the interior of the female screw ring 160, the sealing ring 140 may be arranged, which in the FIGS. 7A and 7B not shown.

On the inner surface of the cylinder jacket-shaped female screw ring 160, an internal thread 166 is formed into which an external thread 266 of the male screw ring 260 can be screwed.

The Figures 8A and 8B show the male screw ring 260 of the male screw connector 200 and the seat of a corresponding Hemmrings 250 in a guide groove 263 of the male screw 260. Similar to the female screw 160 of the female screw 100, the male screw ring 260 of the male screw connector 200 has a fluted handle portion 261, a Insertion end 262, a guide groove 263 for the Hemmring 250, an end edge 264 to stop the Hemmrings 250 and a fastening engagement 265 on. In this case, the respective functions and dimensions of the components of the male and female screw connectors correspond to one another.

The screw rings 160 and 260 are rotatably supported around the insulating body 120 and 220, respectively, so that the grip portions 161 and 261 are respectively disposed on the outer surface of the screw connector.

In order to allow a screwing movement of the female screw ring 160 around the female insulating body 120, the female screw ring 160 loosens the female insulating body 120, ie with a clearance between the screw ring 160 and the insulating body 120. At the end of the female screw body 160, the male end 100E the female screw connector 100 faces away, so "back", the female screw ring 160 has an inner stopper 167 (see. Fig. 2 ). The inner stop 167 may be formed as a portion of the female screw ring 160 with reduced inner diameter.

Likewise, the male screw ring 260 may loosely comprise the male insulator 220, that is, with a clearance between the screw ring 160 and insulator 120 to permit screwing movement of the male screw ring 260 about the male insulator 220. At the end of the male screw ring 260, which faces away from the male end 200E of the male screw connector 200, that is to say "behind", the male screw ring 260 has an inner stop 267 (cf. Fig. 2 ). The inner stop 267 may be formed as a portion of the male screw ring 260 having a reduced inner diameter.

The inner stops 167 and 267 can prevent slipping out of the insulating bodies 120 and 220 from the associated screw ring 160 and 260, respectively.

For this purpose, the inner stop beats 167 of in FIG. 2 shown female screw connector 100 with shield housing 170 on the outer stop 171 of the screen housing 170 (see. Fig. 2 bottom right). The inner stop 267 of the second male screw connector 200 with screen housing 270 abuts against the outer stop 171 of the screen housing 270 (cf. Fig. 2 bottom left).

The inhibiting ring 150 and the inhibiting ring 250 provide, in cooperation with the detents 124 and 224 and the threaded ring 160 and 260, an inhibition of the threaded connection between the female threaded connector 100 and the male threaded connector 200.

The insulating body 120 and / or 220 isolated the individual socket contacts 110 and 210 against each other electrically and may consist of an elastic potting material, which also provides a friction against unscrewing the screw in addition to the locking action. The inhibition inhibits at least one screwing of the respective screw ring in the direction of rotation. In the direction of rotation, the escapement does not necessarily have to be given, but it can also at least partially inhibit a turning of the respective screw ring. By the inhibition is a turning of the screw protection of the connector, for example, in vibration load by industrial machinery o. Ä. inhibited and / or prevented. The escapement is not permanently but detachably designed and allows an intentional unscrewing of the screw.

The FIGS. 9A to 9D show in four different perspective views of a female shield contact ring 130 according to the invention according to a preferred embodiment. Similarly to the conventional inhibiting ring 150 described above, the shield contact ring 130 is also formed as an open ring and thus has an opening 137, a first end portion 139a, a second end portion 139b, and a middle portion 138. At the first end portion 139a, the female shield contact ring 130 has a first female contact member 132 designed and provided, in an installed position of the female screw connector 100, the female shield housing 174, particularly at or immediately adjacent to the shoulder 171 of the female shielding housing 174, to contact. At the central portion 138, the female shield contact ring 130 has a fastener 134 which in its basic function corresponds to the fastener 152 of the above-described conventional inhibitor ring 150, ie, it is designed and provided to non-rotatably connect the female shield contact ring 130 to the female screw ring 160. Compared to the fastening element 152 of the conventional Hemmrings 150, however, the fastening element 134 of the shield contact ring 130 according to the invention has two fastening lugs 134a and 134b and a second female contact or spring element 134c. The two attachment lugs 134a and 134b are designed and provided with the Fastening engagement 165 of the female screw ring 160 (see Figs FIGS. 7A and 7B ) to be engaged. The second female spring element 134c, which is formed as a projection or tongue and extends in the radial direction to the interior of the screen contact element 130, ie in the direction of the opening 137 and / or in the direction of the central portion 138 of the screen contact element 130, is designed and provided. in an installed position or in the mounted state, the female shield housing 170 to contact. Since the female shield contact ring 130 rotates with the female screw ring 160, the first and second spring element 132, 136 are each formed as a sliding contact. Advantageously, the resulting friction during a rotation of these sliding contacts that the screw connection, for example, does not easily dissolve in vibration and thus ensures increased stability and robustness. So that an electrical contact between the female screw ring 160 and the female shield housing 170 can take place, the shield contact ring 130 is completely or at least partially made of conductive material, in particular metal, or formed. The conductive material may in particular be a copper alloy, which preferably has a surface coating, for example of tin, nickel, silver and / or gold. At the second end portion 139b, the female shield contact ring 130 has a third female spring element 136, which is also referred to as a female inhibitor due to its function. The female inhibitor 136 is designed and intended, in the assembled state, to engage in a screening of the female shielding housing 170 (not explicitly shown here) or in a grid 124 of the female insulating body 124 in order to inhibit, as described above in connection with the conventional Hemmring 150 described, reach. The female shield contact ring 130 thus advantageously has, in addition to its function as an electrical contact element between the female screw ring 160 and the female shield housing 170, the additional function of an inhibiting ring. The female shield contact ring 130 according to the invention can thus replace the conventional Hemmring 150 and also provides for an improved shielding effect of the screw connector.

Especially from the FIG. 9C 3, the female shield contact ring 130 is formed such that the first female spring member 132 and the female inhibitor 136 are offset from each other by an interval d in an axial direction of the female shield contact member 130 which corresponds to the insertion direction E in the assembled state. Both the first female spring member 132 and the female inhibitor 136 are formed as a taper of the female shield contact member 130. In this way, the dual functionality of the Schirmkontaktaktrings 130, namely an electrical contact of the female screw ring 160 with the female shield housing 170 on the one hand and an inhibition of the female screw ring 160 on the other hand, can be achieved.

FIG. 10 shows in a perspective view of the arrangement of the female shield contact ring 130 of FIGS. 9A to 9D inside a female screw ring 160. Specifically, the female shield contact ring 130 is disposed in the female screw ring 160 in a manner analogous to the inhibitor ring 150 of a conventional screw connector already described above. The two fastening lugs 134a and 134b of the fastening element 134 engage in the fastening engagement 165 of the female screw ring 160 and thus effect a rotationally fixed connection of the female shield contact element 130 to the female screw ring 160.

The FIGS. 11A to 11C show in three different perspective views an arrangement of the female shield contact ring 130 of FIGS. 9A to 9D on a female insulating body 120 and the female shield housing 170. The female screw ring 160 in which the shield contact ring 130 according to FIG. 10 was arranged in the assembled state, was for reasons of clarity in the FIGS. 11A to 11C omitted. In addition, in the FIGS. 11A to 11C but each an optional sealing ring 140 recognizable.

Like from the FIGS. 11A to 11C it can be seen engages in the mounted state, the female inhibitor 136 in the screening 124 of the female insulating 120th and thereby causes an inhibition of a Aufdrehbewegung the (in the FIGS. 11A to 11C Further, it can be seen that the second female spring 134 c of the female fastener 134 as well as the first female spring 132 respectively contact the female shield housing 170. By means of the female shield contact ring 130 are thus the female shield housing 170 and the (in the FIGS. 11A to 11C not shown) female threaded ring 160 electrically connected together, which causes an improved shielding effect. From the FIG. 11C In particular, it can be seen that the first female spring element 132 contacts the female shield housing 170 at or immediately adjacent to the shoulder 171.

The female Schirmkontaktaktring 130 is dimensioned from its diameter forth, on the one hand engages around the grid 124 from the outside, and further dimensioned so that it comfortably, ie with a certain play, fits into a guide groove 163 of the female screw ring 160, see. also the FIG. 7B , The opening 137 of the female shield contact ring 130 ensures the clearance for the ring radius to meet these dimensioning requirements and to allow easy insertion of the female shield contact ring 130 in the guide channel 163.

FIG. 12a shows in a perspective view a male shield contact ring 230 according to a preferred embodiment of the present invention. Like the female shield contact ring 130, the male shield contact ring 230 is also formed as an open ring having an opening 237, a middle portion 238, a first end portion 239a, and a second end portion 239b.

The male shield contact ring 230 is analogous to the female shield contact ring 130 and designed to be rotatably connected in the mounted state with the male screw ring 260. For this purpose, the male shield contact ring 230 at the central portion 238, a fastener 234, which in the assembled state in the fastening engagement 265 of the male Screw ring 260 (see Figure 8A ) intervenes. Further, the male shield contact ring at the first end portion 239a has a first male spring member 232 for electrically contacting the male shield member 270 and at the second end portion 239b has a male inhibiting member 236 for restraining a twisting motion of the male screw ring 260 (see FIG FIG. 12a not shown). The male inhibitor 236 is analogous to the female inhibitor 136 formed as a spring element. The first male spring element 232 has substantially the entire width of the male shield contact ring 230, while the male inhibitor element 236 is formed as a taper.

FIG. 12b shows in a perspective view of the arrangement of the male shield contact ring 230 FIG. 12a on a male insulating body 220 and a male shielding housing 270. For the sake of clarity, in the FIG. 12b the male screw ring 260, with which the male shield contact ring 230 is rotatably connected in the assembled state (see the Figures 8A and 8B ) omitted. How out FIG. 12B can be seen engages in the mounted state, the male inhibitor 236 in the screening 224 of the male insulating member 220 a. The first male spring member 232 contacts the shoulder 271 of the male shield housing 270.

The male shield contact ring 230 is dimensioned from its diameter forth that on the one hand surrounds the grid 224 from the outside, and further dimensioned so that it comfortably, ie with a certain play, fits into a guide groove 263 of the male screw ring 260, see. also the FIG. 8B , The opening 237 of the male shield contact ring 230 thereby ensures the play for the ring radius in order to meet these dimensioning requirements and to allow easy insertion of the male shield contact ring 230 into the guide groove 263.

The male shield contact ring 230 may include a second male spring element (not shown in the figures) which, in the assembled condition, may be the same as the one shown in FIG male shielding housing 270 contacted. In particular, such a second male spring element may be part of the fastening element 234 of the male shield contact ring 230.

FIG. 13 shows an inventive screw 300 with a female screw connector 100 according to the invention and a male screw connector 200 according to the invention according to a preferred embodiment. The female screw connector 100 has a female screw ring 160, a female shield housing 170, and a female shield contact ring 130. The male screw connector 200 has a male screw ring 260, a male shield housing 270, and a male shield contact ring 230. The female and male shield housing 170, 270 may be of identical construction. The screw rings 160 and 260 are in the FIG. 13 each shown transparent, so that also arranged in the interior of the respective screw rings Schirmkontakt rings 130 and 230 can be seen.

LIST OF REFERENCE NUMBERS

100

Female connector

100E

Plug-in end of female connector

100K

Cable end of female connector

110

Female socket contact

120

Female insulator

120E

Plug-in end of the female insulator

120K

Cable end of the female insulating body

121

plug-in region

122

terminal area

123

insertion

124

scanning

125

burl

126

groove

127

face

130

Female screen contact ring

132

First female spring element

134

fastener

134a

fixing lug

134b

fixing lug

134c

Second female spring element / tongue

136

Third female spring element / female inhibitor

137

opening

138

Middle section

139a

First end section

139b

Second end section

140

seal

150

Hemmring

151

locking lug

152

Fastening element / fastening nose

153

opening

154

thickening

160

Female screw ring

161

grip area

162

plug-in opening

163

guide trough

164

terminal edge

165

fixing intervention

166

inner thread

167

inner stop

170

screen housing

171

External stop / shoulder

172

recess

173

hole

174

cylinder surface

180

outer sleeve

200

male connector

200E

Plug-in end of male connector

200K

Cable end of female connector

210

Male socket contact

220

Male insulator

220E

Plug-in end of the male insulator

220K

Cable end of the male insulating body

221

plug-in region

222

terminal area

224

scanning

225

burl

226

Projection / spring

227

opening

228

external fitting

230

Male screen contact ring

232

First male spring element

234

fastener

236

Male inhibitor

237

opening

238

Middle section

239a

First end section

239b

Second end section

250

Hemmring

260

Male screw ring

261

grip area

262

spigot

263

guide trough

264

terminal edge

265

fixing intervention

266

external thread

267

inner stop

270

screen housing

271

External stop / shoulder

280

outer sleeve

300

Screwing system / plug-in system

e

insertion

d

distance

Claims (13)

Screw system (300) with a female screw connector (100) and a male screw connector (200), which are screwed together,
wherein the female screw connector (100) comprises: - A female screw ring (160) having a male end, into which a male screw ring (260) of the male screw connector (200) can be screwed, and a female shield housing (170) for at least partially shielding the female screw connector (100); wherein the male screw connector (200) comprises: - The male screw ring (260) having a male end which is screwed into the male end of the female screw ring (160), and a male shield housing (270) for at least partially shielding the male screw connector (200); characterized in that
the female screw connector (100) has a female shield contact ring (130) which in an assembled state electrically connects the female screw ring (160) and the female shield housing (170), and / or
the male screw connector (100) has a male shield contact ring (230) electrically connecting the male screw ring (160) and the male shield housing (270) when assembled. Screwing system (300) according to claim 1, wherein the female shield contact ring (130) in the assembled state in a guide groove (163) of the female screw ring (160) is arranged and / or the male shield contact ring (230) in the mounted state in a guide trough (263). the male screw ring (260) is arranged. The screw system (300) of claim 1 or 2, wherein the female shield contact ring (130) comprises at least a first female spring member (132) contacting the female shield housing (170) when assembled and / or the male shield contact ring (230) contacting at least a first one male spring element (232) which in the assembled state, the male shield housing (270) contacted. The screw system (300) of any one of the preceding claims, wherein the female shield contact ring (130) comprises a second female spring element (134c) contacting the female shield housing (170) when assembled, and / or wherein the male shield contact ring (230) is a second has male spring element which in the assembled state, the male shield housing (270) contacted. Screwing system (300) according to one of the preceding claims, wherein
the female screw ring (160) has a fastener engagement (165) and the female shield contact ring (130) has a fastener (134) mounted in the fastened engagement (165) of the female screw ring (160) when assembled and / or
the male screw ring (260) has a fastener engagement (265) and the male shield contact ring (230) has a fastener (234) mounted in the fastened engagement (265) of the male screw ring (260) when assembled. Tightening system (300) according to claim 5, wherein
the female shield contact ring (130) has a second female spring element (134c) which, when assembled, contacts the female shield housing (170) and is part of the attachment element (134) of the female shield contact ring (130), and / or
the male shield contact ring (230) has a second male spring element which, when assembled, contacts the male shield housing (270) and forms part of the attachment element (234) of the male shield contact ring (230). Screwing system (300) according to one of the preceding claims, wherein
the female shield housing (170) has a detent on an outer surface of the female shield housing (170), and the female shield contact ring (130) has a female inhibitor (136) which, when assembled, engages the detent of the female shield housing (170); and / or where
the male shield housing (270) has a detent on an outer surface of the male shield housing (270) and the male shield contact ring (230) has a male inhibitor (236) which, when assembled, engages the detent of the male shield housing (270). Screwing system (300) according to one of claims 1 to 6,
wherein the female screw connector (100) further comprises: - A female insulating body (120) which can be arranged in the interior of the female screw ring (160) and along a plug-in direction (E) in a male insulating body (220) of the male screw connector (200) can be inserted; and wherein the male screw connector (200) further comprises: - The male insulating body (220) which can be arranged in the interior of the male screw ring (260) and in which the female insulating body (120) along the insertion direction (E) can be inserted, in which
the female insulating body (120) has a detent (124) on its outer surface, and the female shield contact ring (130) has a female inhibitor (136) which, when assembled, engages the detent (124) of the female insulating body (120); and / or where
the male insulating body (270) has a detent (224) on its outer surface and the male umbrella contact ring (230) has a male inhibitor (236) which, when assembled, engages the detent (224) of the male insulating body (270). Screwing system (300) according to claim 7 or 8 in combination with one of Claims 3 to 6,
wherein the female shield contact ring (130) is formed as an open ring having first and second end portions (139a, 139b), the first female spring member (132) being attached to the first end portion (139a) of the female shield contact ring (130) and the female inhibitor (15). 136) is formed on the second end portion (139b) of the female shield contact ring (130); and or
wherein the male shield contact ring (230) is formed as an open ring having first and second end portions (239a, 239b), the first male spring member (232) being attached to the first end portion (239a) of the male shield contact ring (230) and the male inhibitor member (230). 236) is formed on the second end portion (239b) of the male shield contact ring (230). Screwing system (300) according to claim 9,
wherein the first female spring member (132) and the female inhibitor member (136) are each formed as a taper of the female shield contact ring (130), and wherein the first female spring member (132) with respect to the female inhibitor member (136) along an axial direction of the female shield contact ring (130) is offset; and or
wherein the male inhibitor (236) is formed as a taper of the male shield contact ring (230). Female screw connector (100) for a screw system (300), comprising: - A female screw ring (160) having a plug-side end into which a male screw ring (260) of a male screw connector (200) of the screw system (300) can be screwed, and a female shield housing (170) for at least partially shielding the female screw connector (100), characterized in that
the female screw connector (100) has a female shield contact ring (130) which in an assembled state electrically connects the female screw ring (160) and the female shield housing (170). Male screw connector (200) for a screw system (300), comprising: - A male screw ring (260) having a male end which is screwed into a female screw ring (160) of a female screw connector (100) of the screw system (300), and a male shield housing (270) for at least partially shielding the male screw connector (200), characterized in that
the male screw connector (200) has a male shield contact ring (230) which in an assembled state electrically connects the male screw ring (260) and the male shield housing (270). A method of manufacturing a screw connector (100; 200) for a screw system (300), comprising the steps of: Providing a screw ring (160; 260) having a male side end threadable into a complementary screw ring (260; 160) of a complementary screw connector (200; 100) of the screw system (300), and Providing a screen housing (170; 270) for at least partially shielding the screw connector (100; 200), characterized in that
a screen contact ring (130; 230) is provided which can be arranged in a guide groove (163; 263) of the screw ring (160; 260) and is designed to hold the screw ring (160; 260) and the screen housing (170) in an assembled state 270) electrically connect to each other.

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