DE102020002805B4 - Socket for waterproof applications as well as combination of the socket with a plug with several contact pins - Google Patents

Abstract

A socket for waterproof applications is described, having a front wall (10) in which at least one first and second opening (11, 12) are formed for inserting contact pins (51) of an external plug (50), as well as at least one first and one second clamping element (30, 31), each of which is axially aligned with an associated one of the openings (11, 12), when the contact pins (51) are inserted, each detachably rests on one of the contact pins (51) and each by means of a respective conductor (34) of the socket are connected to a respective electrical connection element (35) of the socket. Among other things, the socket has a first chamber (20) with a first cover slide (40) and a second chamber (21) with a second cover slide (41), the first and second cover slide (40, 41) between an overlapping closed position and an exposed open position is mounted laterally displaceable. The invention was based on the object of providing a socket with a higher degree of protection, which also reduces the entry of dust and the risk of accidental contact with live parts within the socket. The object is achieved according to the invention in that the first cover slide (40) and the second cover slide (41) are magnetically coupled to one another.

Description

The invention relates to a socket having the features set forth in the preamble of claim 1. In addition, the invention is also implemented on a combination of the socket with a plug.

Usually, water-protected sockets are used outdoors and are therefore exposed to the elements all year round. A water-protected socket is often firmly attached to a building wall as a flush-mounted or surface-mounted socket.

Efforts have already been made in the prior art to improve the susceptibility of a plug socket to moisture. That's how she beats DE 20 2008 009 466 U1 a plug socket whose plug can be inserted into a conventional and existing wall socket. In a housing carried by the plug there is in turn a housing socket which is accessible via an opening in the front of the housing and is sealed off from the front by means of a sealing ring. In addition, a spring-loaded protective flap covers the housing connector socket, which can be pivoted to one side for inserting the connector. The well-known plug socket can be designed to be splash-proof according to IP44. However, this degree of protection is not sufficient for many applications and is only achieved when the protective cover is closed.

In the US 2006/0094272 A1 describes a socket whose plug openings are closed by means of flexible plastic flaps so that children cannot push electrically conductive objects into the plug openings.

the US 2005/0026482 A1 proposes a socket protection cover that prevents the insertion of foreign objects in only one of the several plug openings. For this purpose, the socket protective cover has a housing, a sliding base and covers. The housing is provided with plug openings and the sliding base is spring-preloaded and can be displaced transversely in the housing. The covers are resiliently mounted and have locking elements. If the locking elements on the covers are not displaced and removed from the connector openings at the same time, the other locking element that is not pushed away from the connector opening remains in the connector opening and blocks lateral movement of the sliding base, thereby preventing the introduction of a foreign body.

the U.S. 1,666,729 discloses a plug socket which can be laid under a carpet and has a plug, the contacts of which are so pointed that they can be pushed through the carpet into the plug socket located below.

In the CN 205 811 132 U as well as in the CN 107 591 645 A a safety socket and its application is disclosed. The safety socket comprises one or more socket bodies, each of which has a plurality of mutually insulated plug chambers as well as a power line connection circuit, a neutral line connection circuit and a locking mechanism. Insulating cavities that do not communicate with the plug-in chambers are formed in the socket bodies, which prevents water penetrating into the plug-in chamber from getting into the insulating cavities.

the DE 40 13 356 A1 describes a flush mounted electrical connector having a wall recessed housing having an insert with a flange for mounting the unit. Electrical wires are secured in terminal blocks with molded strip connectors. Projections with contacts are provided in order to receive contact pins of a connector plug.

the CN 105 789 954 A relates to a magnetic safety socket and safety plug. The socket consists of a panel, fixed contacts and moving contacts. The plug is provided with a conductive sheet that is used to connect to the socket. The conductive sheet consists of conductive magnets or the magnets are installed behind the conductive sheet. The main advantages of the magnetic safety socket and plug are that the magnetic safety socket and plug is simple in construction and safe to use. In addition, the socket should be able to be made relatively thin.

In the US 2007/0111569 A1 a tamper-proof socket is proposed which has sliding panels arranged between openings in the front side of the socket and phase and neutral conductors of the socket. The sliding panels are connected to a circuit breaker circuit so that if one of the sliding panels is moved over a certain range of motion, the circuit breaking circuit of the socket is triggered in order to de-energize the phase and neutral conductors of the socket.

the KR 10 1 123 665 B1 discloses a socket outlet plug with a safety device to prevent the opening of a single contact opening by the movement of an opening one and closing part is blocked. For this purpose, an opening and closing element is slidably attached to a support element. The opening and closing element closes the contact openings. An elastic element elastically supports the opening and closing element. When a force is applied unevenly to both ends of the opening and closing member, a locking means prevents the movement of the opening and closing member.

the DE 20 2010 000 547 U1 shows an electrical socket with at least one contact carrier and at least one contact socket which is arranged in or on the contact carrier and which can be protected by means of a pivotable cover. The socket outlet should comprise at least one lighting device which is arranged in or on the contact carrier or integrated into the contact carrier or assigned to the contact carrier.

the DE 196 20 445 C1 forms a prior art in the form of a multiple socket with a housing and a carrier arrangement, which can be inserted or inserted into the housing together with contact rails and contact sockets as well as a protective contact rail and protective contacts.

In the CN 201 466 296 U a security socket locked by means of cover slides is disclosed. Current-carrying clamping elements are covered in a closed position by means of cover slides arranged in pairs. The cover slides of a current-carrying clamping element, which are arranged in pairs, can be opened or closed independently of the cover slides of another clamping element.

the US 2008/0261420 A1 Figure 12 shows a safety power plug with electrical connector pins made of conductive material having an insulated base portion housed within the connector, a conductive center portion and a distal non-conductive portion. With the help of the conductive middle section, an electrical connection is established when the plug is inserted into a socket.

In the DE 10 2004 063 485 A1 a connector bridge and a method for producing the connector bridge is proposed. The metal contacts penetrating into a socket or socket, i.e. plug pins, blade contacts or the like, should be partially insulated by only forming the metal contacts at the end facing away from the handle body from bare metal, while a plastic casing is provided for the metal contacts near the handle body.

The invention was therefore based on the object of providing a socket which, when installed at the rear, allows a higher degree of protection and reduces the entry of dust and the risk of accidental contact with live parts within the socket.

The object is achieved according to the invention with the features of claims 1 and 10. The socket enables at least a temporary, complete immersion when electrical voltage is applied, without a short circuit occurring, regardless of whether a plug is inserted into the socket or not, provided the electrical connection elements and the rear cabling are also watertight . The socket can be integrated into a socket strip, a cable drum, a site power distributor, an extension cable or a floor outlet.

The clamping elements of the socket, which establish an electrically conductive connection with the contact pins of a plug, are each inserted into an associated first and second chamber and thereby separated from one another.

The first and second chambers extend in their axial direction at least from the clamping elements to the respective first and second openings formed in the front wall for inserting the contact pin of an external plug. In addition to a first and second chamber, further chambers with clamping elements accommodated therein can be provided. It is also possible to accommodate the protective conductor in a protective conductor chamber of the same construction as the first and second chambers, provided that a contact pin corresponding to the protective conductor is present on the connector side. The first and second chambers are necessarily designed to be watertight, so that no fluidic exchange between the first and second chambers is possible. The at least first and second chambers are advantageously accessible exclusively via the associated first and second openings in the front wall. The chamber is also made of an electrically non-conductive material, in particular plastic.

The first and second chambers are formed by a chamber wall structure. The chamber wall structure comprises a plurality of wall sections which each form the first and second chambers and optionally the protective conductor chamber. The chamber wall structure is expediently connected to the front wall in a sealing manner.

The current conductor is expediently passed through the chamber wall structure in a sealed manner. The connection elements can therefore always be arranged outside the first and second chambers in order to be able to connect them to an existing power line, which is generally fixed in place. Otherwise, the existing fixed power line would have to be inserted into the otherwise watertight socket, which increases the risk of leaks.

The socket has a rear wall spaced apart from the front wall. The rear wall can be a wall section delimiting the first and / or second chamber or can be arranged within the first and second chamber. It is also possible that a common rear wall is provided which runs at least partially through each of the at least first and second chambers. In this embodiment, the first and second chambers are divided by the rear wall and it is possible, for example, to accommodate the cover slides described below in one of the divided sections of the chamber.

The plurality of electrical connection elements are expediently arranged on the rear wall of the plug socket. This makes it possible to arrange the electrical connection elements directly next to one another in an assembly-friendly manner.

In the rear wall, passage openings for the contact pins of an external plug can be formed axially in alignment with the first and second openings in the front wall. In this way, the contact pin ends of the contact pins pass through the passage openings onto an outside of the rear wall facing away from the front wall. The first and second clamping elements and / or the connection elements are preferably fastened on the outside of the rear wall facing away from the front wall. In this position, current-carrying cables can be connected to the plug socket particularly well, since the connection elements in particular can be freely accessible. However, the first and second clamping elements are always arranged within the associated first and second chambers. The connection elements are located outside the first and second chambers to improve ease of assembly. The chamber wall structure is therefore pierced by a current conductor connecting the first and second clamping element to the respective connection element. This breakthrough is fluid-tight.

The first and / or second clamping element are advantageously guided into the passage openings in sections. This embodiment enables a particularly large contact surface of the first and second clamping element with its associated contact pin in the axial direction up to the passage opening, which results in a particularly low line resistance.

It has proven to be particularly advantageous if the first and / or second clamping element is or are designed as spring cotter pins, the or each of the spring cotter pins having two contact legs engaging a spring element, which are arranged in an axial extension of the associated passage opening opposite one another. The contact legs can therefore be bent in the manner of a half-shell and together nestle against the outer circumferential wall of the contact pin. Due to the spring element, the contact legs initially have a smaller spacing from one another than the outer circumference of the contact pin. When the contact pin is pushed in, the contact pins expand against the pressure of the spring element and come into contact from both sides with a contact pin inserted through the opening, which further improves the mechanical contact.

One or both contact legs are typically connected to the connection element. The connection can be made by means of a separate conductor in the form of a cable, a conductor track or a busbar. Alternatively, it is also possible to integrate the current conductor, for example, in one or in both contact limbs and to connect this (s) to the connection element in an electrically conductive manner.

According to a further particular embodiment, the chamber wall structure has a rear chamber wall structure section which is arranged between the outside of the rear wall and a cover of the plug socket that overlaps the rear wall. The rear chamber wall structure section forms a section of the first and second chambers and optionally the protective conductor chamber.

The rear chamber wall structure section is preferably formed completely or partially on the cover and / or the outside of the rear wall.

The chamber wall structure comprises a front chamber wall structure section which extends between an inner side of the rear wall facing the front wall and the front wall. The front chamber wall structure section forms a further section of the first and second chambers and optionally the protective conductor chamber. Typically, each first and second chamber and optionally the protective conductor chamber has a rear and front chamber wall structure section.

A first cover slide is arranged in the first chamber of the front chamber wall structure section and a second cover slide is arranged in the second chamber of the front chamber wall structure section, the first and second cover slide being mounted laterally displaceably between an overlapping closed position and an exposed open position of the first and second openings above . With the help of the first and second cover slider, the first and second openings are covered, which reduces the entry of dust and the risk of accidental contact with live parts inside the socket.

The first cover slide can be held in the closed position by means of a first spring element and / or the second cover slide by means of a second spring element. In this respect, each cover slide is assigned an associated spring element which holds the respective first and second cover slide in the closed position independently of one another. An embodiment is particularly preferred in which the first spring element is / are inserted between the first cover slide and the front chamber wall structure section and / or the second spring element between the second cover slide and the front chamber wall structure section.

The first cover slide and the second cover slide are magnetically coupled to one another. The first and second cover slides are arranged in the structurally separate first and second chambers and can hardly be mechanically connected to one another due to the chamber wall structure lying in between. By means of the magnets, which are preferably fastened to the first and second cover slides, the first and second cover slides can be kinematically coupled and moved simultaneously through the separating chamber wall structure of the first and second chambers.

According to a particularly advantageous embodiment, the first cover slide is assigned to a neutral conductor of a single-phase alternating current network or the negative pole of a direct current network and is designed with an incline which is arranged in the closed position under the associated first opening. If a pointed object is inserted into the first opening, it hits the incline and pushes it to the side against the force of the first spring element. Behind the first cover slide, however, there is only the neutral conductor or negative conductor, which does not trigger an electric shock in the event of contact. Due to the preferably magnetic coupling of the first and second cover slide, the second cover slide is also moved from the closed position into the open position and has exposed the outer conductor (phase) of the alternating current network or the positive pole of the direct current network located underneath. For a dangerous contact, however, the pointed object would first have to be pulled out of the first opening and inserted into the second opening, which is not possible since both the first and the second cover slide are pulled out of the open position when the pointed object is pulled out of the first opening wander back into the closed position and as a result of which the second opening is closed again by the second cover slide. The second cover slide does not have an incline via which the second cover slide could be moved from the closed position into the open position by means of a pointed object.

A protective conductor clasp of the plug socket, which is fastened on the outside of the front wall, is preferably electrically connected to a protective conductor connection element of the plug socket in a protective conductor chamber of the plug socket. For this purpose, a current conductor runs evacuated from the protective conductor connection element through the protective conductor chamber to the protective conductor clasp.

The protective conductor clasp can have a U-shape with two opposing, free legs, with a sealing element protruding from the outside of the front wall being arranged on a base of the two free legs. The sealing elements serve to accommodate a socket cover placed on the socket, which is usually pushed onto the protective conductor clasp, in a sealing manner with respect to the outside of the front wall, which further reduces the risk of dust and splash water entering.

The invention cooperates favorably with a plug having a plurality of contact pins, with an insulating jacket being applied to the contact pins starting from a plug base body in the direction of the front contact pin ends, from which free end sections at the contact pin ends are excluded. When the plug is inserted, only the free contact pin ends contact the first or second clamping element. The combination of socket and a plug modified above even enables a plugging process under water without a short circuit occurring, since a charge balance around the outside via the first and second breakthrough is prevented due to the insulating jacket on the contact pins. The insulating jacket can in particular be a shrink tube.

• 1: eine perspektivische Vorderansicht auf die Steckerbuchse;
• 2: eine perspektivische Rückansicht auf die Steckerbuchse gemäß 1 mit an einer Rückwand angeordneten Anschlusselementen und Kammerwandstruktur;
• 3: eine perspektivische Vorderansicht auf einen Deckel mit daran fortgesetzter Kammerwandstruktur zum Verschließen der Rückwand;
• 4: eine perspektivische Vorderansicht auf die Steckerbuchse mit abgenommener Vorderwand und
• 5: eine Seitenansicht auf einen Stecker zum Einsetzen in die Steckerbuchse.

For a better understanding, the invention is explained in more detail below with reference to five figures. It show the

• 1 : a perspective front view of the socket;
• 2 : a perspective rear view of the socket according to FIG 1 with connection elements and chamber wall structure arranged on a rear wall;
• 3 : a perspective front view of a cover with a chamber wall structure continued thereon for closing the rear wall;
• 4th : a perspective front view of the socket with the front wall removed and
• 5 : a side view of a plug for insertion into the socket.

the 1 shows in a perspective front view a socket according to the invention, which is supported by a collar-shaped mounting frame 19th is held. The installation frame 19th stands in the radial and axial directions opposite a front wall 10 the socket in front. In the front wall 10 is a first and second breakthrough side by side 11th , 12th brought in. The diameters of the first and second breakthroughs 11th , 12th are dimensioned in such a way that it contains contact pins 51 of a plug 50 (please refer 5 ) can be used.

On an outside 18th the front wall 10 is a fixed U-shaped protective conductor clasp 36 attached. The protective conductor clasp 36 engages in its medial section on the outside 18th the front wall 10 on, whereas two opposite, free legs 37 with respect to the outside 18th protrude substantially vertically. With a plug inserted into the socket 50 are the free legs 37 on complementary protective conductor contacts 56 at. The protective conductor clasp 36 is electrically conductive with a on a back wall 13th arranged protective conductor connection element 39 connected as follows in connection with 2 is explained.

In the transition area from one parallel to the outside 18th the front wall 10 running medial section of the protective conductor clasp 36 to the free thighs 37 each is a sealing element 38 upset. The sealing elements 38 are made of an elastic material in such a way that socket covers from different manufacturers (not shown here) can be placed on the socket according to the invention. The sealing elements 38 ensure, regardless of the socket cover used, not only better protection against splashing water, but also, in particular, improved dust protection.

In the 2 is a perspective rear view of the socket shown in which the rear wall 13th with a rib-like chamber wall structure 23 can be seen. By means of the chamber wall structure 23 is one each with the first breakthrough only 11th communicating first chamber 20th and one with the second breakthrough only 12th communicating second chamber 21 separated. In the chamber wall structure 23 is also a protective conductor chamber 22nd formed through which a conductor 34 up to the protective conductor connection element 39 is led out. The protective conductor connection element 39 is preferably with a protective conductor E. a single-phase AC voltage supply can be connected. The protective conductor chamber 22nd extends to the front wall 10 and insulates the associated conductor 34 up to the protective conductor clasp 36 .

In the image plane of the 2 is the protective conductor chamber 22nd centrally between the first and second chambers 20th , 21 arranged. Basically there is the chamber wall structure 23 made of an electrically non-conductive and at the same time waterproof material, in particular made of plastic.

The chamber wall structure 23 includes one on one to the front wall 10 facing away from the outside 14th the back wall 13th formed, rear chamber wall structure section 24 as shown in 2 , which moreover on one the outside 14th covering lid 16 corresponding 3 is continued.

In the present embodiment, the chamber wall structure is 23 also in a front chamber wall structure section 25th as shown in 4th continued, the one between one to the front wall 10 facing inside 17th the back wall 13th and the front wall 10 is trained. The respective first and second chambers 20th , 21 with their first and second clamping elements arranged therein 30th , 31 as well as the protective conductor chamber 22nd with their conductor arranged in sections 34 are always through the rear and front chamber wall structure sections 24 , 25th separated from each other.

The rear chamber wall structure section 24 surrounds the first chamber 20th and the second chamber 21 , in each of the one the back wall 13th axially completely penetrating passage opening 15th flows out. The passage openings 15th align in the axial direction with the first opening 11th or the second breakthrough 12th in the front wall 10 , such that the contact pins 51 a plug inserted into the socket 50 up to the passage openings 15th and preferably through this into the rear chamber wall structure section 24 reach in.

In an axial extension of both openings 15th is on the outside 14th the back wall 13th inside the first chamber 20th the first clamping element 30th and within the second chamber 21 the second clamping element 31 attached. The first and second clamping elements advantageously protrude 30th , 31 up to the passage openings 15th into it, whereby a plug inserted into the socket 50 a particularly large contact area between the contact pins 51 and the first and second clamping elements 30th , 31 with the resulting low electrical resistance.

The contacting of the first and second clamping element 30th , 31 with the contact pins 51 can be improved even further if the first and second clamping elements 30th , 31 as a spring clip 32 is trained. The spring pin 32 can in particular a spring element 32a and two contact legs engaging it 33 include, which are spring-loaded on opposite sides of the respective contact pin 51 a plug inserted into the socket 50 issue. In the exemplary embodiment shown, it is the spring element 32a around an open loop made of spring steel, the opposite ends of which are made in one piece, integrally in the contact legs 33 pass over.

To the first clamping element 30th is the conductor 34 connected, the watertight from the first chamber 20th led out and with an associated connection element 35 is electrically connected. The conductor 34 can be an independent component in the form of a busbar or an integral part of the first clamping element 30th be, which is always sealing in the chamber wall structure 23 , particularly the rear chamber wall structure section 24 is fitted. In the embodiment shown, the conductor is 34 of the first clamping element 30th from an extension of the opposite contact legs 33 of the spring connector 32 educated. The one with the first clamping element 30th corresponding connection element 35 is preferably to a neutral conductor N a single-phase AC voltage supply can be connected.

The second clamping element 31 is also to a conductor 34 connected, its structural design that of the first clamping element 30th is equivalent to. The one with the second clamping element 30th corresponding connection element 35 is preferably to an outer conductor L. a single-phase AC voltage supply can be connected.

The connection elements are for easy accessibility 35 and the protective conductor connection element 39 outside the first and second chambers 20th , 21 as well as the protective conductor chamber 22nd arranged. The in 3 shown lid 16 also points over the connection elements 35 and the protective conductor connection element 39 molded lid openings 16a which conductors of a current-carrying cable to be connected can be passed through. In this area there is no longer any watertightness because the connection elements are 35 and the protective conductor connection element 39 outside the sealed first and second chambers 30th , 31 as well as the protective conductor chamber 22nd are located. In the case of flush mounting in a house wall, however, this circumstance is acceptable, since the house wall offers a certain protection. Otherwise, the waterproof plug socket would have to be inserted into a waterproof housing and the current-carrying cable to be connected would have to be sealed.

the 4th shows a perspective front view of the socket with the front wall removed and the front chamber wall structure section located therebelow 25th , which among other things, the first and second chamber 20th , 21 structurally separated from each other. In the first chamber 20th is a first cover slide 40 slidably mounted and by means of a first spring element 42 held in a locked position. In the closed position, the first cover slide covers it 40 the ones above, in the front wall 10 shaped first breakthrough 11th and the one behind it, in the back wall 13th shaped passage opening 15th . In the second chamber 21 is a second cover slide 41 slidably mounted and by means of a second spring element 43 held in a locked position. In the closed position, the second cover slide covers it 41 the ones above, in the front wall 10 shaped second breakthrough 12th and the one behind it, in the back wall 13th shaped passage opening 15th . The first spring element 42 is supported on the associated first cover slide 40 and the first chamber 20th delimiting front chamber wall structure section 25th from, whereas the second spring element 43 on the second cover slide 41 and the second chamber 21 delimiting front chamber wall structure section 25th supports. The first and second cover slider 40 , 41 ensure dust protection and increased contact protection for live parts within the socket.

On the first and second cover slides 40 , 41 is a first and a second magnet on the opposite side 44 , 45 attached. The first and second magnet 44 , 45 enable a kinematic coupling of the first and second cover slides 40 , 41 in their respective first and second chambers 20th , 21 through the chamber wall structure 23 . In addition, the first cover slide 40 an incline 40a which is different from the second cover slide 41 to below the first breakthrough above 11th extends. If a suitable connector 50 with symmetrically similarly designed contact pins 51 simultaneously in the first and second breakthrough 11th , 12th is inserted, the pushes into the first opening 11th on the incline 40a butting contact pin 51 this against the force of the first spring element 42 from the closed position to the open position. Due to the magnetic coupling of the first and second cover slider 40 , 41 the second cover slide is also simultaneously 42 moved, the contact pin there 51 reaches the passage opening arranged behind it 15th and finally contacts the second clamping element 31 .

However, if, for example, a child plays with a pointed object on the socket and puts this pointed object into the second opening 12th , which is typically connected to the live outer conductor (phase) L. is in a functional context, the second cover slide will be 41 due to the lack of an incline 40a don't move and give way. If the pointy object is on the other hand in the first breakthrough 11th inserted, it is possible to use the first sliding cover 40 about the incline 40a to move to the open position. However, this is not critical, since the first breakdown is typically with the neutral conductor N is in a causal relationship and there is no risk of injury from an electric shock.

In the 5 is a plug in a side view 50 with a connector body 53 , on one side of which a cable running to an electrical consumer 57 is led out and on the opposite side of the two from the connector body 53 protruding contact pins 51 are arranged. On the contact pins, which are made from an electrically conductive material 51 is an insulating jacket 54 applied by the connector body 53 continuously in the direction of the contact pin ends 52 runs and only there a free end portion 55 releases. The axial length of the insulating jacket 54 corresponds to at least or equal to the axial length of the front chamber wall structure section 25th and ensures that the connector 50 can even be plugged in with a socket that is completely submerged without causing a short circuit.

List of reference symbols

10

Front wall socket

11

first breakthrough

12th

second breakthrough

13th

Rear wall socket

14th

Outside rear wall

15th

Passage openings

16

lid

16a

Lid openings

17th

Inside rear wall

18th

Outside front wall

19th

Mounting frame

20th

first chamber

21

second chamber

22nd

Protective conductor chamber

23

Chamber wall structure

24

rear chamber wall structure section

25th

front chamber wall structure section

30th

first clamping element

31

second clamping element

32

Spring clip

32a

Spring element spring cotter

33

Contact leg spring connector

34

Conductor

35

Connection element

36

Protective conductor clasp

37

free leg protective conductor clasp

38

Sealing element

39

Protective conductor connection element

40

first cover slide

40a

Impact slope

41

second cover slide

42

first spring element

43

second spring element

44

Magnet first cover slide

45

Second cover slide magnet

50

plug

51

Contact pins

52

Contact end

53

Connector body

54

Insulating jacket

55

free end section

56

Plug protective conductor contact

57

cable

E.

Protective conductor

N

Neutral conductor

L.

Outer conductor (phase)

Claims (10)

Socket for watertight applications, having a front wall (10) in which at least one first and second opening (11, 12) for inserting contact pins (51) of an external plug (50) are formed, as well as at least one first and second clamping element (30 , 31), each of which is axially aligned with an associated one of the openings (11, 12), when the contact pins (51) are inserted, each detachably rests against one of the contact pins (51) and each by means of a respective conductor (34) of the socket with a respective electrical Connection element (35) of the socket are connected, the first clamping element (30) in a first chamber (20) of the socket extending up to the associated first opening (11) and the second clamping element (31) in one up to the associated second opening (12) extending second chamber (21) of the socket are arranged separated from one another, the socket being at a distance from the front wall (10) te rear wall (13) and the first and second chambers (20, 21) are formed by a chamber wall structure (23) of the socket, wherein the chamber wall structure (23) comprises a front chamber wall structure section (25) which extends between one of the front wall (10 ) facing inside (17) of the rear wall (13) and the front wall (10), wherein in the first chamber (20) of the front chamber wall structure section (25) a first cover slide (40) of the socket and in the second chamber (21) of the A second cover slide (41) of the socket is arranged on the front chamber wall structure section (25), the first and second cover slide (40, 41) being laterally displaceable between an overlapping closed position and an exposed open position of the first and second opening (11, 12) located above it is mounted, characterized in that the first cover slide (40) and the second cover slide (41) are magnetically coupled to one another nd. Socket after Claim 1 , characterized in that the plurality of electrical connection elements (35) are arranged on the rear wall (13) of the socket. Socket after Claim 1 or 2 , characterized in that through openings (15) for the contact pins (51) of an external plug (50) are formed in the rear wall (13) axially aligned with the first and second openings (11, 12) of the front wall (10). Socket according to one of the Claims 1 until 3 , characterized in that the first and second clamping elements (30, 31) and / or the connection elements (35) are attached to an outer side (14) of the rear wall (13) facing away from the front wall (10). Socket after Claim 3 or 4th , characterized in that the first and / or second clamping element (30, 31) is or are designed as a spring connector (32), the or each of the spring connectors (32) having two contact legs (33) engaging a spring element (32a) which are arranged opposite one another in an axial extension of the associated passage opening (15). Socket after Claim 4 or 5 , provided that Claim 5 on Claim 4 relates, characterized in that the chamber wall structure (23) has a rear chamber wall structure section (24) which is arranged between the outer side (14) of the rear wall (13) and a cover (16) of the socket that overlaps the rear wall (13). Socket according to one of the Claims 1 until 6th , characterized in that the first cover slide (40) is or are held in the closed position by means of a first spring element (42) and / or the second cover slide (41) by means of a second spring element (43). Socket according to one of the Claims 1 until 7th , characterized in that the first cover slide (40) is assigned to a neutral conductor (N) of a single-phase alternating current network and is designed with an incline (40a) which, in the closed position, is arranged under the associated first opening (11). Socket according to one of the Claims 1 until 8th , characterized in that a protective conductor clasp (36) of the plug socket fastened on the outside (18) of the front wall (10) is electrically connected to a protective conductor connection element (39) of the plug socket in a protective conductor chamber (22) of the plug socket. Combination of a socket according to one of the Claims 1 until 9 with a plug (50) having several contact pins (51), characterized in that an insulating jacket (54) is applied to the contact pins (51) starting from a plug base body (53) in the direction of the front contact pin ends (52), from which free end sections ( 55) at the contact pin ends (52) are excluded.

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