DE202016000137U1 - Appliance plug with optional cable passage - Google Patents

Abstract

Mechanical connector - in particular a low-voltage connector as a coupling or plug with optional cable passage, characterized in that - the connector (1) from an IEC-standard connector part (10, 20) and an integrally connected application-oriented socket part (40, 60) Plastic consists, - the can part (40, 60) has the geometric shape of a flat hollow cylinder, - the side wall (44, 64) m breakable radially offset recesses (45, 65) for the m cable runs, - each cable passage in the can interior a cable receptacle (70) facing each other, - the cable receptacle depending from a ground-reinforcing support (66), flanked on the left and right sides by an axially arranged cylindrical threaded dome (63), - the strain relief of a slightly convexly curved cable clamp (68) and two screws ( 69) is formed, - the n = m + 1 threaded domes (63) in a geometrical equivalent arrangement, the n corners of a regelmä the position and length of the m supports (66) corresponds to the edge, chord or side length a of the polygon and - the circular side wall (44, 64) to the perimeter of the polygon equivalent.

Description

The invention relates to a mechanical connector device, in particular a low-voltage connector as a coupling or plug with optional cable passage.

• – Steckverbinder mit Buchsen lautet Kupplung und den
• – Steckverbinder mit Stiften lautet Stecker.

Colloquially, such device connectors are referred to as cable couplings or cable sockets for mains voltage in the low-voltage network, which are plugged directly into the terminals - such as household electrical appliances and small consumers - and serve the power supply of these electrical equipment. The correct technical name for the

• - Connector with sockets is coupling and the
• - Connector with pins is plug.

Appliance plugs and sockets are subject to international standardization by the International Electrotechnical Commission (IEC); single phase versions are in the Standard IEC60320 are defined and device plugs and sockets for three-phase alternating current are in the Standard IEC60309 established. Such power lines consist of a flexible power supply line with a country-specific plug for low voltage connection and a touch-protected device cable coupling as a device plug or socket at the other end of the line. The possibly live contacts are protected against contact by insulation of a corresponding design; the sockets are insulated, the pins are dead when not plugged.

• – mit/ohne Erdungsanschluß
• – Schutzklasse I oder II
• – Höhe der Strombelastbarkeit 0,2 A, 2,5 A, 6 A, 10 A, 10 A/15 A, 16 A/20 A
• – Höhe der maximalen Temperatur 70°C, 120°C, 155°C
• – Ausführung mit + runden (rd.) Stiften/Buchsen + senkrechten (sk.) Flach-(fl.)stiften/buchsen + waagerechten (wg.) Flach-(fl.)stiften/buchsen
• – Kontaktabstand 6,6 mm, 8,6 mm, 10 mm, 13 mm, 14 mm
• – Kabelgang mittig, rechts, links.

The single-phase IEC60320 Connections are indicated by the letter C followed by an odd number for the jack and the following even number for the same type of plug. The connectors are classified next to the socket or plug

• - with / without ground connection
• - Protection class I or II
• - Current carrying capacity 0.2A, 2.5A, 6A, 10A, 10A / 15A, 16A / 20A
• - Height of maximum temperature 70 ° C, 120 ° C, 155 ° C
• - Version with + round (approx.) Pins / sockets + vertical (sk.) Flat (fl.) Pins / sockets + horizontal (wg.) Flat (fl.) Pins / sockets
• - Contact spacing 6.6 mm, 8.6 mm, 10 mm, 13 mm, 14 mm
• - Central cableway, right, left.

The cable passage is defined by the position of the cable outlet when plugged connection with a view of the inserted connection.

• – Rasiererstecker nach IEC60320-001 – rd., ohne Erde, SK II, 0,2 A, 70°C
• – Kleeblattkupplung nach IEC60320-C05/C06 – rd., mit Erde, SK I, 2,5 A, 70°C
• – Kleingerätestecker nach IEC60320-007 – rd., ohne Erde, SK II, 2,5 A, 70°C
• – Kaltgerätestecker nach IEC60320-C13/C14 – fl./sk., mit Erde, SK I, 10 A/15 A, 70°C
• – Warmgerätestecker nach IEC60320-C15/C16 – fl./sk., mit Erde, SK I, 10 A/15 A, 120°C
• – Heißgerätestecker nach IEC60320-C15A/C16A – fl./sk., mit Erde, SK I, 10 A/15 A, 155°C
• – Kaltgerätestecker nach IEC60320-C19/C20 – fl./wg., mit Erde, SK I, 16 A/20 A, 70°C.

Well-known single-phase types are

• - Razor plug after IEC60320-001 - Rd., Without soil, SK II, 0.2 A, 70 ° C
• - cloverleaf clutch after IEC60320-C05 / C06 - Rd., With earth, SK I, 2.5 A, 70 ° C
• - Small appliance plug after IEC60320-007 - Rd., Without soil, SK II, 2.5 A, 70 ° C
• - IEC connector after IEC60320-C13 / C14 - fl./sk., With earth, SK I, 10 A / 15 A, 70 ° C
• - Warm device plug after IEC60320-C15 / C16 - fl./sk., With earth, SK I, 10 A / 15 A, 120 ° C
• - hot appliance plug after IEC60320-C15A / C16A - fl./sk., With earth, SK I, 10 A / 15 A, 155 ° C
• - IEC connector after IEC60320-C19 / C20 - fl./wg., With earth, SK I, 16 A / 20 A, 70 ° C.

The development presented here concerns in particular IEC60320 Connectors of types C09 / C10 ... C23 / C24. Frequently prefabricated power supply lines from a flexible power supply line with a country-specific plug for low voltage connection and a touch-protected device cable coupling attached as a device plug or socket at the other end of the electrical appliances with a corresponding connector, the cable is not considered.

A central cable passage increases the inserted depth of an electrical device considerably when plugged connection; A left-hand cable duct requires a corresponding device-built-in plug on the left-hand side - in view of the situation - a free space that the installation situation does not necessarily provide. The same applies to the right cable passage of a plug connection with a device plug installed on the right side. If the angled left or right cable duct does not point outwards but towards the inside, considerable equipment free space is required, which is usually reserved for other other device slots.

Due to the mechanical coding of the connector - except for C01- / C02-, C07- / C08- and C09- / C10-connections - the 180 ° rotation of a connection part by the user is not possible, especially not the built-in device socket , The production preparation and storage of the 14 connectors presented here are already significant without the cable gear variation and in extreme cases increase by the cable gear factor 3.

In the following, the state of the art of mechanical connectors, in particular low-voltage connectors as a clutch or plug with optional cable passage is appreciated; According to the prior art, depending on the application reference, a variety of types of mechanical device connectors, in particular of low-voltage connectors as a coupling or plug with optional cable passage in use.

The international application WO 2010/145702 presents an electrical socket with plug pins as a device connector for power connections, the plug contacts are each provided with a bellows seal. This ensures that the device plug is sealed against dust and water from a high International Protection / Ingress Protection (IP) degree of protection against an electrical device and against the contacts of the device plug and protected from dust and dust or water. The bellows seal is annular or square, has at least one rib and can be applied to commercially available plug contacts - such as pins of conductor (L) / neutral (N) / earth (E) -. The rib or the bellows bends when inserting the device socket into the device plug, thus ensuring the desired degree of IP protection. The cable passage is exemplified centered; he is not the subject of contemplation.

The German utility model DE 299 17 687 /European Patent Application EP 1 142 071 / international registration WO 2001/026188 provides a device plug / socket for connecting an electrical device to a mains supply. The device plug consists of a base unit for electrically connecting the appliance plug to the mains, a connection unit for connecting the electrical appliance to the appliance plug and at least one protective unit, which is arranged between the base unit and the terminal unit, wherein the base unit, the terminal unit and the protection unit modular and pluggable are arranged. Due to the modular design, the same units can be used for different applications, different protection units can be arranged between the base unit and the connection unit; Also, a protective function can be modularly assembled by combining different protection units. No cable passage is provided, as the device socket is designed for rear-side soldering and soldering.

The Slovak patent application SK 11 62-97 presents an electrical appliance / manufacturer specific power cord for an electrical consumer, one end of which is provided with a standard earthed (Schuko) plug and the second end of which has a non-standard, approximately oval molded appliance plug with device cable coupling, the outside two square and inside a round pin connection recording provides. The cable passage is provided in the middle. In addition to the large number of standardized IEC plug-in connections, there are also other device / manufacturer-specific solutions.

The Swiss patent application CH 3 05/94 / European registration EP 666 617 describes a device plug with fuse such that the fuse is provided on the inside of the device facing the side of the appliance plug or socket and the replacement of the fuse insert only when the device is open from the inside. It eliminates the expense of an additional component that must be mounted and connected separately. It is the use of very simple held fuse holder possible because of the protected position are no special precautions for additional insulation to make - neither shock hazard nor special seals of the fuse holder are provided. Advantageously, the fuse between the outwardly projecting pin and the inner terminal of the plug can be placed; Cable passage is not provided, as the device box is designed for PCB soldering and -kontaktierung.

According to the German patent application DE 43 16 962 / European registration EP 625,806 an electrical connector with a molded connector part and a retaining plate for the contact springs is presented, in which for the purpose of increasing the electrical strength and safety a protective cap is inserted before spraying the male part on the support plate or their dividers to the space around the contact points between the pins or contact springs and the conductor ends of the supply lines to the outside and against each other to secure or cover. The protective cap is the Contour of the device plug designed accordingly and overhangs the entire space above said contact points; the cable passage is centered, a variance is not claimed.

The German patent application DE 42 00 301 / European registration EP 551,068 discloses a modular electrical appliance plug with a central cable passage, which consists of an insulating plastic housing with outwardly open spring chambers for each contact element and wherein the insulating plastic housing of a spring chamber having the head and one of the contact points between the contact springs and the supply line insulating and partially the head part cross-molded molded connector part and a pre-injection of the male part partially inserted into the head part holder is composed, wherein the existing of the contact springs and the sockets one-piece contact elements are injected into the holder. This creates a device plug, in which the contact elements are fixed firmly in the holder during the stepwise production; a variable cable passage is not provided.

The German patent application DE 38 07 717 / European registration EP 332,035 provides an electrical appliance plug with an insulating housing with outwardly open spring chambers before, in each of which a contact spring is inserted, wherein a pre-injection of the male part patch on the inelastic molding holding plate is provided which carries the arrangement of the spring chambers according to the contact springs and two each opposite edges has a directed towards the pins web, wherein the webs are connected to each other at its free side with a lying parallel to the support plate cover plate, is provided in the coaxial with the pins each a conical through hole.

The measure serves to simplify the plug production and at the same time improves electrical safety; an optional cable passage is not addressed.

With the German utility model DE 87 15 003 a three-pin electrical appliance plug is known, which - provided with a connection line to the spring pins - is made automatically. For this purpose, the spring pins are integrally guided in a holding plate and inserted into the spring chambers of a hollow cylindrical inelastic plastic molding, wherein the retaining plate is positively inserted via a projection and a complementary undercut in the front page. This ensures that in the subsequent encapsulation of the inelastic molding for the elastic, partially overlapping sprayed connector part with the lead and the contact springs in the spring contacts receiving spring chambers no plastic material can penetrate. The cable passage is exemplified centered; he is not the subject of contemplation.

The German patent application DE 31 56 503 relates to a device plug with a housing and with electrical connections inside the housing, wherein the housing has at least one translucent region in which a light source is arranged in the interior of the plug housing such that it lights up when at least one of the electrical connections, a supply voltage is applied, and in which the illumination of the light source is visible through the transparent area on the outside of the housing. The user should be made aware by the illumination of the light source clearly that even the device plug is disconnected from the device via the connection line still connected to the connection network and is live. For the device plug a central cable passage is provided; a variance of the cable passage is not addressed.

All publications presented are only partially or not at all for the specific use of a mechanical connector device, especially not for a low-voltage connector as a coupling or plug with optional cable passage. The invention is therefore based on the object to provide a device according to the preamble of claim 1, a mechanical connector device, in particular a low-voltage connector as a coupling or plug with optional cable passage. This object is achieved by the characterizing features of claim 1; to advantageous embodiments, the dependent claims.

The aim is to build a mechanical connector - especially a low-voltage connector as a coupling or plug with optional cable gland - preferably the IEC60320 Connectors of types C9 / C10 ... C23 / C24. However, the solution for a selected connector is transferable to other category connectors. The developing device connector as a plug or as a coupling consists of a plastic connector part with internal electrical contacts - sockets or pins - this connector part has mechanical dimensions, the Standard IEC60230 correspond.

• – mehrere Kabelgänge vorsieht
• – das Anschlußkabel aufnimmt
• – das Kabel zugentlastend befestigt
• – die abgemantelten Aderenden aufnimmt
• – die ggf. elektrische Schraub-, Löt- oder Steckkontakte plaziert
• – die abisolierten Aderenden den elektrischen Kontakten zuführt
• – eine stete elektrisch niederohmige Verbindung ermöglicht.

The plug part closes at the end facing away from the plug-in direction a Kabelaufnahme-, -anschluss- and -verbindungsdose, the

• - Provides several cable channels
• - picks up the connection cable
• - The cable tension relieving attached
• - picks up the stripped wire ends
• - If necessary, placed electrical screw, solder or plug contacts
• - The stripped wire ends supplies the electrical contacts
• - allows a constant low-impedance connection.

• – die sogenannten Luft- und Kriechstrecken einerseits einzuhalten sowie
• – andererseits darf der elektrische Zugang nur mittels Werkzeug möglich sein.

In a further embodiment of the inventive novelty such a can part is preferably designed substantially as a flat closed plastic hollow cylinder, which is integrally connected to the plug part, wherein the cylinder wall is openly interrupted from the junction plug part in the region of the plug part. In a preferred embodiment, the connector plug and socket part from a manufacturing point of view of two, cut in the axial direction half shells is made, which are connected at a suitable location by a screw or locking connection. As is known - based on the electrical safety

• - To comply with the so-called air and creepage distances on the one hand and
• - On the other hand, the electrical access may only be possible by means of tools.

Clearances and creepage distances are defined as the shortest possible geometric distance between parts which carry electrical voltage, the distance having to have a voltage-dependent minimum length.

A further embodiment of the invention provides that the cover surfaces of the hollow cylindrical can portion are slightly curved against the insertion direction in the radial direction corresponding to the surface normal, which can look like a handle and ergonomic effect of the can part to the connector improved handling - especially in the Deduction direction - to lend.

According to another embodiment of the invention - to give the connector its characteristic properties - on the side surfaces of the hollow cylindrical box - each distributed in half on the upper and lower half-shell of the terminal box part - circular recesses provided - cleanly removed - as possible cable entries Act. Opposite these recesses is located in the can interior each have a cable receptacle, which consists of a ground-reinforcing support as a support, which is bounded on both sides by an axially arranged cylindrical threaded dome.

According to a further advantageous embodiment, an additional fixation of the threaded domes with the inner wall of the can of the corresponding half-shell contributes to stabilizing the connector structure by means of a molded-on web. Another connection of the threaded dome is a slightly convexly curved cable clamp, the pierced ends of which coincides Abstandstandslich with the threaded blind holes of two support-reinforced dome, and in conjunction with an inserted and screw-mounted cable forms a necessary strain relief for the same.

Another embodiment of the inventive novelty is given by the fact that the diameter of the resultant by support support and cable clamp cable opening depends on the current carrying capacity of the connector and the cable to be used for this purpose and its sheath diameter. The maximum cable sheath diameter and the corresponding dimensioning of the cable holder and their number determine - in addition to the air and creepage distances - the volume of the terminal box part, while the dimensions of the connector part are fixed by the connector type Cxx and thus prescribed plug standard.

Another embodiment of the inventive novelty is given by the fact that the design - round or flat - and the arrangement - vertically or horizontally - the electrically conductive contact springs is specified by the selected plug type Cxx and the dimensions thereof are largely standardized. The contact springs - pronounced as a socket for couplings or as pins for plugs - are usually inserted and pressed self-retaining in appropriately sized cut-clear spaces and are captively fixed after the assembly of upper and lower shell of the connector part.

According to a further embodiment of the invention, the optionally existing protective contact spring is often provided at its plug end facing away with a pressed-nut and in addition to the bottom of Fixed half shell of the box, the press nut receives the screw for the screw fastening of the other half-shell of the box. Other connection techniques between can top and bottom shell - such as tool-aided locking connections - are given. The ends of the contact springs usually form on these welded metallic wire end-receiving screw contacts whose dimensions are dependent on the intended plug type Cxx with its current carrying capacity. Also at this point, instead of the screw electrical spring connectors are possible. The interior of the can offers sufficient space for receiving the ends of the coat-free cable.

The achievable with the present invention consist in particular that are provided for a possible connector as a coupling or plug with m 360 ° / n-staggered cable ducts - with n = m + 1 - in addition to the m housing recesses m cable shots whose lateral, in total n = m + 1 threaded dome are arranged as a regular n-corner, so that only one cable clamp and two mounting screws are needed for the m cable ducts. Corresponding solutions result for m = 3, 4, 5, 6, ..., or n = 4, 5, 6, 7, ..., if the - exemplary - circular circumference of the can-part without the standardized dimension of Plug parts is divided symmetrically. Instead of a cylindrical socket part is also the choice and expression of a polygon in the base area n-corner socket part - the arrangements of the cable shots following - given. Furthermore, the exemplary screw-mounted cable receptacles and strain relief can be replaced by other holding - as latching - connection techniques.

While the plug part of the connector as a coupling or plug is dimensionally subject to an IEC standard, the development of the socket part is based on the customer requirements - such. As the number and location of the possible cable runs. For this purpose, corresponding recesses and number-matching cable receptacles are provided in the socket part, each consisting of a strain relief with support, lateral thread domes, cable clamp and fastening screws. The geometric design of the can interior is oriented in a replacement arrangement on a regular n-chord polygon - with n equal interior angles and n equal side or edge lengths - in which the number and position of the threaded domes position the vertices of the polygon or polygon, the columns and the clamps the side lengths and the side wall of the hollow cylindrical can portion the perimeter of the polygon.

According to a further advantageous development, a socket part with m cable ducts requires n = m + 1 threaded domes, m supports, always 1 clamp and 2 fastening screws. The cable diameter determining the clamp dimensions is d = 7 mm ... 9 mm; The width of the plug part of the connector as a plug measures approximately b = 23 mm, the height about h = 16 mm, and as a clutch about b = 28 mm and the height about h = 21 mm, these dimensions influence the design the can part - in particular the diameter of the hollow cylindrical can part - have.

• – den Zentrierwinkel α
• – den Außenwinkel β
• – den Innenwinkel γ
• – den Umkreisdurchmesser D
• – den Umkreisradius r
• – die Seitenlänge a
• – den Flächeninhalt A

folgende Werte für den/die b h n m α β γ D r a A [mm] [mm] [°] [°] [°] [mm] [mm] [mm] [mm²] Stecker 23 16 3 2 360 120 60 23 11,5 19,9 172 b h n m α β γ D r a A [mm] [mm] [°] [°] [°] [mm] [mm] [mm] [mm²] Stecker 23 16 4 3 360 90 90 23 11,5 16,3 265 23 16 5 4 360 72 108 23 11,5 13,5 315 23 16 6 5 360 60 120 23 11,5 11,5 344 Kupplung 28 21 3 2 360 120 60 28 14 24,2 255 28 21 4 3 360 90 90 28 14 19,8 392 28 21 5 4 360 72 108 28 14 16,5 466 28 21 6 5 360 60 120 28 14 14 509 In a further embodiment of the inventive novelty in the use of the replacement arrangement of the regular n-tendon polygon for the junction box design, resulting for n = 3 ... 6 corners or m = n - 1 cable glands for

• - The centering angle α
• - the outer angle β
• - the internal angle γ
• - the circumference diameter D
• - radius of circumference r
• - the page length a
• - the area A

the following values for the b H n m α β γ D r a A [Mm] [Mm] [°] [°] [°] [Mm] [Mm] [Mm] [mm ² ] plug 23 16 3 2 360 120 60 23 11.5 19.9 172 b H n m α β γ D r a A [Mm] [Mm] [°] [°] [°] [Mm] [Mm] [Mm] [mm ² ] plug 23 16 4 3 360 90 90 23 11.5 16.3 265 23 16 5 4 360 72 108 23 11.5 13.5 315 23 16 6 5 360 60 120 23 11.5 11.5 344 clutch 28 21 3 2 360 120 60 28 14 24.2 255 28 21 4 3 360 90 90 28 14 19.8 392 28 21 5 4 360 72 108 28 14 16.5 466 28 21 6 5 360 60 120 28 14 14 509

As the table values for the plug connector show as plug, a socket part with the diameter D = 23 mm from an n = 5 polygon interior design can no longer reasonably be produced, since with a side length a = 13.5 mm a corresponding cable clamp for a cable diameter d = 7 mm ... 9 mm has a fastening length of 2 × 3.25 mm ... 2.25 mm; the diameter of the socket part is to be increased. The side length a between two threaded domes also determines the mail of the mechanical and electrical transition from the plug part to the socket part. As the table values for the connector show as a coupling, a socket part with the diameter D = 28 mm from an n = 6 polygon interior design can no longer reasonably be produced, since with a side length a = 14 mm a corresponding cable clamp for a cable diameter d = 7 mm ... 9 mm has a fixing length of 2 x 3.5 mm ... 2.5 mm; the diameter of the socket part is to be increased. The side length a between two threaded domes also determines the degree of mechanical and electrical transition from the coupling part to the socket part.

If a side length a of the chordal polygon is based on the width dimension b of the plug or the coupling, and the remaining side lengths and corner points are subject to the above-described interior design of the socket part, the value is determined according to the rules for a non-regular chordal polygon.

Instead of the outer design of the can part as a hollow cylinder with the diameter D of the chord-polygon circumference, the can part is also as a regular or non-regular prism with polygonal base surface can be mapped.

The subject matter of the invention will be further clarified below with reference to the accompanying drawings of exemplary embodiments. Show it

• a) in Perspektive
• b) ohne Deckel, als Kupplung, flache Kontaktfedern, senkrechte Anordnung

1 Appliance plug with cable duct, right

• a) in perspective
• b) without cover, as coupling, flat contact springs, vertical arrangement

2 Appliance plug with cable duct, left, cover offset, as coupling, flat contact springs, vertical arrangement, in perspective

3 Appliance plug, without cover, central cable passage (indicated), as coupling, flat contact springs, vertical arrangement, in perspective

• a) Seitenansicht
• b) Vorderansicht
• c) Draufsicht.

4 Appliance plug, without cover, central cable passage (indicated), as coupling, flat contact springs, vertical arrangement, in

• a) side view
• b) front view
• c) top view.

The same and equivalent components of the embodiments are each provided with the same reference numerals in the figures.

The description of the device according to the invention will be continued with reference to the explanation of the figures.

1 shows the structure of the device connector according to the invention 1 - In particular, a low-voltage connector as a coupling or plug with cable passage right 80 in perspective, 1a) - preferably one IEC60320 -Connector type C13 / C14 ..., C17 / C18, C21 / C22 concerning, not least by the slope 12 marked and the page 22 limited. However, the solution for a selected connector is transferable to other category Cxx connectors. The developmental device connector as a plug or as a coupling consists of a plastic connector part 10 . 20 with internal electrical contacts - sockets or pins - this connector part having mechanical dimensions, the Standard IEC60230 correspond.

• – mehrere Kabelgänge vorsieht 45
• – das Anschlußkabel aufnimmt 80
• – das Kabel zugentlastend befestigt 68, 70
• – die abgemantelten Aderenden aufnimmt 82, 83
• – ggf. elektrische Schraub-, Löt- oder Steckkontakte plaziert 28, 31
• – die abisolierten Aderenden den elektrischen Kontakten zuführt 83
• – eine stete elektrisch niederohmige Verbindung ermöglicht 26, 27.

The plug part closes at the end facing away from the plug a Kabelaufnahme-, -anschluss- and-Verbindungsungsdose 40 . 60 to the

• - Provides several cable channels 45
• - picks up the connection cable 80
• - The cable tension relieving attached 68 . 70
• - picks up the stripped wire ends 82 . 83
• - If necessary, electrical screw, solder or plug contacts placed 28 . 31
• - The stripped wire ends supplies the electrical contacts 83
• - allows a constant low-impedance connection 26 . 27 ,

Such a can part 40 . 60 is preferably substantially as a flat closed plastic hollow cylinder 41 . 61 executed, which is integral with the plug part 11 . 21 is connected, wherein the cylinder wall 44 . 64 from the junction plug part in the region of the plug part for the electrical connection 26 . 27 open is interrupted. In a preferred embodiment, the connector 1 from plug and socket part 10 . 20 . 40 . 60 from a manufacturing point of view, two half-shells cut in the axial direction 11 . 41 and 21 . 61 made in a suitable place by a screw or locking connection 30 . 46 . 90 keeping connected, 1b) ,

The lid / bottom surface 42 . 43 . 62 the hollow cylindrical can part 41 . 61 is slightly curved against the direction of insertion in the radial direction corresponding to the surface normal, what the can part look like a handle and can be ergonomic. To give the connector its characteristic features are - on the side surfaces 44 . 64 the hollow cylindrical box 40 . 60 - Half each on the upper and lower half shell 41 . 61 of the terminal box part distributed - circular recesses 45 . 65 provided, which - cleanly removed - act as possible cable entries. Opposite these recesses is located in the can interior each a cable holder 70 made of a ground reinforcing prop 66 as a support, which is on both sides by an axially arranged cylindrical threaded dome 63 is limited.

2 shows the appliance plug 1 with cable passage 80 , left, with detached lid top 11 . 41 and cover screw 90 , as coupling, with flat contact springs 26 . 27 , in vertical arrangement 23 . 24 , in perspective.

Furthermore sees an additional fixation of the threaded domes 63 with the inner wall of the can 64 the corresponding half shell 61 through a molded bridge 67 to stabilize the connector assembly 1 contributes. Another connection of the threaded domes 63 provides a slightly convex curved cable clamp 68 whose pierced ends 71 Abstandmaßlich with the threaded blind holes 72 two support-reinforced dome coincides, and in conjunction with an inserted and screw-mounted 69 double-insulated cable 80 a necessary strain relief for the same forms.

The diameter of itself by support support 66 and cable clamp 68 resulting cable opening depends on the current carrying capacity of the connector 1 and the double-insulated cable to be used for this purpose 80 and its sheath diameter 81 , The maximum cable sheath diameter and the corresponding dimensioning of the cable holder 70 and their number determine - in addition to the air and creepage distances - the volume of the terminal box part 40 . 60 while the dimensions of the plug part 10 . 20 are fixed by the plug type Cxx and the thus specified IEC plug standard.

3 shows the appliance plug 1 , lidless 11 . 41 , with indicated, central cable passage, as coupling, with flat contact springs 26 . 27 , in vertical arrangement 23 . 24 , in perspective.

For a possible plug connection 1 as coupling or plug with m 360 ° / n offset cable ducts - with n = m + 1 - are in addition to the m housing recesses 45 . 65 m cable recordings 70 whose lateral, in total n = m + 1 threaded dome 63 be arranged as a regular n-corner, so that for the m cable ducts always only a cable clamp 68 and two fixing screws 69 needed. Corresponding solutions result for the multiplications m = 3, 4, 5, 6, ..., or n = 4, 5, 6, 7, ..., if the - exemplary - circular circumference 44 . 64 of the can part 41 . 61 without the standardized dimension of the plug part 10 . 20 is divided symmetrically. Instead of a cylindrical can part 40 . 60 is also the choice and expression of a polygon in the base area n-corner socket part - the arrangements of the cable receptacles 70 following - given.

The design - round or flat - and the arrangement - vertical or horizontal - the electrically conductive contact springs 26 . 27 is specified by the selected plug type Cxx and the dimensions thereof are largely IEC-standardized. The contact springs - pronounced as a socket for couplings or pins for plugs - are usually in appropriately sized cut-out spaces 25 self-holding inserted and pressed and are after the joining of Ober- 11 and lower shell 21 of the plug part 10 . 20 fixed captive.

4 shows the appliance plug 1 , lidless 11 . 41 , with indicated, central cable passage, as coupling, with flat contact springs 26 . 27 , in vertical arrangement 23 . 24 , in 4a) as a side view, in 4b) as front view and in 4c) as a top view.

The possibly existing protective contact spring 27 is often at its male end facing away with a pressed-in threaded bolt 30 provided and additionally on the ground 62 the half shell 61 the can 60 fixed, with the threaded bolt the screw 90 for the screw fastening of the other half shell 41 the can 40 receives. Other joining techniques between canned food 41 and lower shell 61 - As tool-assisted locking connections - are given. The ends of the contact springs 26 . 27 mostly form on these welded metallic wire end receiving screw contacts 28 . 29 . 31 . 32 their dimensions are dependent on the intended plug type Cxx with its current carrying capacity. Also at this point, instead of the screw electrical spring connectors are possible. The interior of the can offers sufficient space for receiving the ends 82 . 83 of the sheath-exposed double-insulated cable 80 ,

Advantageous developments of the invention are the subject of the dependent claims; The numerous possibilities and advantages of the embodiment of the invention are reflected in the number of patent claims.

LIST OF REFERENCE NUMBERS

1

Appliance plug with optional cable passage

10

Plug part, top

11

top

12

slope

13

Leadership SE

14

Leadership contact

15

Recording contact

16

side panel

20

Plug part, below

21

lower part

22

side panel

23

Leadership SE

24

Leadership contact

25

Recording contact

26

Contact

27

Contact SE

28

bolted

29

Contact screw

30

threaded bolt

31

Screw contact SE

32

Contact screw SE

40

Connection box, top

41

can member

42

Upper part 1

43

Upper part 2

44

Side wall

45

recess

46

admission

60

Junction box, below

61

lower part

62

ground

63

threaded dome

64

Side wall

65

recess

66

support

67

web

68

clamp

69

screw

70

cable storage

71

drilling

72

threaded hole

80

cable

81

cable sheath

82

insulation

83

ladder

90

cover screw

a

page length

A

area

b

width

d

diameter

D

Radius diameter

H

height

r

circumradius

α

centering

β

external angle

γ

interior angle

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

• WO 2010/145702 [0011]
• DE 29917687 U [0012]
• EP 1142071 [0012]
• WO 2001/026188 [0012]
• SK 1162-97 [0013]
• CH 305/94 [0014]
• EP 666 617 [0014]
• DE 4316962 [0015]
• EP 625806 [0015]
• DE 4200301 [0016]
• EP 551068 [0016]
• DE 3807717 [0017]
• EP 332035 [0017]
• DE 8715003 U [0019]
• DE 3156503 A [0020]

Cited non-patent literature

• Standard IEC60320 [0003]
• Standard IEC60309 [0003]
• IEC60320 [0004]
• IEC60320-001 [0006]
• IEC60320-C05 / C06 [0006]
• IEC60320-007 [0006]
• IEC60320-C13 / C14 [0006]
• IEC60320-C15 / C16 [0006]
• IEC60320-C15A / C16A [0006]
• IEC60320-C19 / C20 [0006]
• IEC60320 [0007]
• IEC60320 [0022]
• Standard IEC60230 [0022]
• IEC60320 [0046]
• Standard IEC60230 [0046]

Claims (11)

Mechanical appliance plug - in particular a low-voltage connector as a coupling or as a plug with a random cable passage, characterized in that - the appliance plug ( 1 ) from an IEC-standardized plug part ( 10 . 20 ) and an integrally connected application-oriented can part ( 40 . 60 ) consists of plastic, - the can part ( 40 . 60 ) has the geometric shape of a flat hollow cylinder, - the side wall ( 44 . 64 ) m breakable radially offset recesses ( 45 . 65 ) for the m cable ducts, - each cable duct inside the box has a cable receiver ( 70 ), - the cable receiving ever from a soil reinforcing support ( 66 ), flanked on the left and right sides by an axially arranged cylindrical threaded dome ( 63 ), - the strain relief from a slightly convex curved cable clamp ( 68 ) and two screws ( 69 ), - the n = m + 1 thread dome ( 63 ) in a geometrical equivalent arrangement, the n vertices of a regular n-corner tendon polygon or polygon are formed, - the position and length of the m supports ( 66 ) corresponds to the edge, chord or side length a of the polygon and - the circular side wall ( 44 . 64 ) corresponds to the perimeter of the polygon. Mechanical connector according to claim 1, characterized in that - the plug part ( 10 . 20 ) of the device plug ( 1 ) of a plastic part with internal electrical phase-corresponding contacts ( 26 . 27 ), wherein - the contacts in the connector are designed as a coupling with sockets and - in the connector as a connector with pins, and - the connector part ( 10 . 20 ) Has IEC-standard mechanical dimensions. Mechanical connector according to at least one of claims 1 and 2, characterized in that - the device plug ( 1 ) from plug ( 10 . 20 ) and can part ( 40 . 60 ) is formed from the production point of view of two, cut in the axial direction half shells, - an upper plug and socket half shell ( 11 . 41 ) and - a lower plug and socket half shell ( 21 . 61 ), - in a suitable place while maintaining the so-called creepage and clearance distances by a screw ( 30 . 46 . 90 ) or latching connection are held, wherein - this is to be opened for electrical access only by means of a tool. Mechanical connector according to at least one of claims 1 to 3, characterized in that - the cover or bottom surfaces ( 42 . 43 . 62 ) of the hollow cylindrical can part ( 40 . 60 ) increase against the direction of insertion in the radial direction corresponding to the surfaces normal in slight curvature, which can look like a handle and handle the can part ergonomic. Mechanical connector according to at least one of claims 1 to 4, characterized in that - an additional fixation of the threaded domes ( 63 ) with the inner wall of the can ( 64 ) of the corresponding half shell ( 61 ) by a molded web ( 67 ) for stabilizing the connector structure ( 1 ) contributes. Mechanical connector according to any one of claims 1 to 5, characterized in that - (a further compound of threaded Dome 63 ) a slightly convex curved cable clamp ( 68 ), - their pierced ends ( 71 ) equidistant with the threaded blind bores of two support-reinforced domes, and - which in conjunction with an inserted and screw-mounted ( 69 ) Electric wire ( 80 ) forms a necessary strain relief for the same. Mechanical connector according to at least one of claims 1 to 6, characterized in that - for a possible plug connection ( 1 ) as a coupling or plug with m 360 ° / n offset cable runs - with n = m + 1 - next to the m housing recesses ( 45 . 65 ) m cable recordings ( 70 ) whose lateral, in total n = m + 1 threaded dome ( 63 ) are arranged as a regular n-tendon polygon, so that for the m cable ducts always only a cable clamp ( 68 ) and two fixing screws ( 69 ) are required as a strain relief. Mechanical connector according to at least one of claims 1 to 7, characterized in that - the design - round or flat - and the arrangement - vertically or horizontally - the electrically conductive contact springs ( 26 . 27 ) is specified by the selected plug type Cxx, - the dimensions of the same are IEC-standardized, - the contact springs - pronounced as a socket for couplings or pins for plugs - in appropriately sized cut-free spaces ( 25 ) inserted and pressed self-holding and - after the joining of upper ( 11 ) and lower shell ( 21 ) of the plug part ( 10 . 20 ) are captively fixed. Mechanical device plug according to at least one of claims 1 to 8, characterized in that - the possibly existing protective contact spring ( 27 ) at its plug-away end with a pressed-in threaded bolt ( 30 ) and additionally on the ground ( 62 ) of the half shell ( 61 ) the can ( 60 ), wherein - the threaded bolt the screw ( 90 ) for the screw-fastening of the other half-shell ( 41 ) the can ( 40 ), - other joining techniques between can top ( 41 ) and lower shell ( 61 ) - as tool-supported locking connections - are given, - the ends of the contact springs ( 26 . 27 ) is usually applied to this welded metallic wire-end receiving screw ( 28 . 29 . 31 . 32 ) or spring-plug contacts and - the can interior enough space for receiving the ends ( 82 . 83 ) of the sheath-exposed double-insulated cable ( 80 ) offers. Mechanical device plug according to at least one of claims 1 to 9, characterized in that - instead of a cylindrical socket part ( 40 . 60 ) also the expression of a regular or non-regular prism with a polygon-like n-polygon in the base area - the arrangements of the cable receptacles ( 70 ) following - is given. Mechanical device plug according to at least one of claims 1 to 10, characterized in that - a side / edge length a of the n chord-polygon at the width dimension b of the plug ( 22 ) or the clutch oriented - the remaining side lengths and vertices of the above-mentioned, symmetrical interior design of the can part are subject and - the value is determined according to the rules for a non-regular n tendon polygon.

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