CZ34818U1 - Energy-saving electrical wiring comprising at least one multi-circuit socket - Google Patents

Description

In the registration procedure, the Industrial Property Office does not determine whether the subject of the utility model meets the conditions for eligibility for protection pursuant to Section 1 of Act no. E. 478/1992 Sb.

CZ 34818 UI

Electrical saving electrical wiring comprising at least one multi-circuit socket

Field of technology

The subject of the technical solution is the connection of electrical wiring with a multi-circuit socket, enabling switching of power supply circuits of single-phase appliances. The technical solution falls into the field of electrical installations, and can be used in domestic and industrial electrical installations.

Prior art

U.S. Pat. No. 2004229488 (AI) describes the possibility of expanding modular sockets without interfering with the electrical installation in conjunction with modern modular furniture. The solution is limited to permanent phase switching according to the requirement of uniform loading of phase conductors, ie it is limited to permanent phase switching E1 or L2 or L3 when expanding new sockets and does not solve the switchability of these circuits. According to this patent, the circuit selection switch is inaccessible to the user.

U.S. Pat. No. 5,038,005 (A) describes a solution limited to the selection of a single phase from the possible three phases L1, L2 and L3 according to the requirement of a uniform load on the phase conductors or to an emergency switchover in the event of a single phase failure. The patent focuses specifically on powering lights and switching the phase conductor with a switch, even under load. Therefore, only the switchability of only the supply phase conductors is solved and the switchability of the circuits in the fault-free state is not solved. U.S. Pat. No. 4,666,223 (A) is limited to switching the individual phases in a plug, not a socket. Therefore, in principle, it does not allow the connection of common electrical appliances.

DE 3501917 (C1) proposes a solution which is limited to switching the individual phases in the light socket, not in the socket. This principle does not allow the connection of common electrical appliances.

The essence of the technical solution

The above-mentioned disadvantages are eliminated by the connection of electrical distributions for energy saving comprising at least one multi-circuit socket. The multi-circuit socket is designed to switch off single-phase appliances that do not have to be switched on permanently, thus extending the life of the product and saving energy consumed in standby mode. Multiple supply phase phase conductors lead to the socket, and a mechanical socket circuit selector switch selects the electrical circuit required by the user, which the user can change at any time according to current needs. The control part of the circuit selection socket switch is user-accessible, which is used to set the circuit type. The switching is then solved by a remote central switch connected to one or more switching elements, which switching elements can be semiconductor or electromagnetic. With the central circuit selection switch, appliances connected to multi-circuit sockets can be switched on or off centrally according to the settings on each of the socket switches, while the settings on the socket switches can be easily changed by the user. In the solutions according to the state of the art, such a change, ie the connection of the appliance to another circuit, would involve a change of the electrical installation at the cost of construction interventions.

The connection of electrical distributions for energy saving according to the present technical solution comprises at least one multi-circuit socket for powering single-phase appliances. Each multi-circuit socket comprises a center conductor socket and a phase conductor socket and has a user-accessible external interface and also has an internal interface, the internal interface of each multi-circuit socket comprising a center conductor terminal and at least two phase terminals for connection

- 1 CZ 34818 UI of supply phase phases. The circuit also comprises a central switchboard and at least two supply phase supply conductors connected thereto, wherein at least two of the phase terminals of each multi-circuit socket are connected to one of the supply phase supply conductors. Each multi-circuit socket further comprises a circuit selection socket switch adjustable to at least two positions, wherein in each of its positions the socket switch electrically connects another of the phase terminals to the phase conductor socket of the same multi-circuit socket. The essence of the connection is that between at least one of the phase terminals, which is connected to one of the supply phase phase conductors, and the central switchboard, a switching element for switching on and off the electrical connection of this phase terminal is connected on the supply phase phase conductor connected to this phase terminal. with central switchboard.

In one possible embodiment, the circuit further comprises a central circuit selection switch which is connected to the at least one switching element.

An embodiment is also possible in which the circuit comprises a control unit which is connected to at least one switching element.

In yet another preferred embodiment, the circuit comprises at the same time a control unit and a central circuit selection switch, which is connected to at least one switching element, the control unit being connected to the central circuit selection switch.

It is advantageous if at least two phase terminals, each of which belongs to a different multi-circuit socket, are interconnected.

The switching elements can be electromagnetic and / or semiconductor.

Switching elements that are electromagnetic preferably include contactors and / or electromagnetic relays. Switching elements that are semiconductor preferably include solid state relays and / or semiconductor thyristors.

An embodiment is possible in which the central switchboard is three-phase with phases L1, L2, L3. For each of the phase terminals which is connected to one of the supply supply phase conductors, in this embodiment this supply supply phase conductor is guided with the system designer of an arbitrarily selected phase selected from the group comprising phases L1, L2, L3.

A preferred variant of the previous connection then comprises at least one multi-circuit socket with a maximum of three phase terminals, in which each of its phase terminals is connected to the phases L1, L2 and L3 than the other phase terminals of the same multi-circuit socket.

The at least one drawer switch is preferably rotatable.

In one preferred embodiment, the socket switch has an actuating part which is part of the user-accessible outer interface of the multi-circuit socket _, said actuating part of the socket switch having such a position and shape that in front view the user-accessible outer interface of the multi-circuit socket lies inside a strip is at the junction of the centers of the sockets, the length of which corresponds to the distance between the outer edges of the sockets on this longitudinal axis and whose width is 15 mm.

The external interface of the multi-circuit socket may also include a protective conductor pin. The internal interface of the multi-circuit socket then also includes a terminal for the protective conductor.

The connection of electrical wiring for energy saving containing at least one multi-circuit socket according to the presented technical solution is designed for switching circuits on and off in a fault-free state, where the primary goal is energy saving, switching on backup power or connecting local, eg renewable energy source. all when secured

-2 CZ 34818 User Security UI. Multi-circuit sockets can be additionally set to any circuit, so it is possible to easily change the electrical project in buildings with already completed electrical wiring. Further advantages will be apparent from the following examples.

Explanation of drawings

The technical solution is explained in more detail with the help of the attached drawings.

Giant. This is a front view of the outer interface of a multi-circuit socket in an embodiment with a rotary socket switch for circuit selection. The section plane A-A is also indicated, in which the multi-circuit socket is shown in FIG. 3a.

Giant. 1b is a front rear view of the inner interface of a multi-circuit socket in an embodiment with a rotary socket circuit breaker switch.

Fig. 2 shows a front view of the outer interface of a multi-circuit socket with the outline of one of the possible plugs inserted into the socket. A strip P is also marked, in which a circuit selection switch for plugs of various shapes can be placed. The section plane B-B is also indicated, in which the multi-circuit socket is shown in Fig. 3b.

In Fig. 3a the section A-A is a multi-circuit socket without a plug inserted, see section plane A-A in Fig. 1a.

In Fig. 3b, section B-B is a multi-circuit socket with a plug inserted, see section plane B-B in Fig. 2.

Fig. 4 shows a diagram of electrical wiring with a multi-circuit socket for the electromagnetic version of the switching elements.

Fig. 5 shows a diagram of electrical wiring with a multi-circuit socket for a semiconductor version of switching elements.

Fig. 6 shows an embodiment with an electromagnetic version of the switching elements, where, in addition to Fig. 4, the connection of another multi-circuit socket and a switchboard of a local power supply in a single-phase design is also shown.

Fig. 7 shows an embodiment with an electromagnetic version of the switching elements, two multi-circuit sockets and a local power supply switchboard in a three-phase design.

Examples of technical solution

It is to be understood that the specific examples of embodiments of the technical solution described and illustrated below are presented for illustration, and not as a limitation of possible embodiments of the technical solution to said examples.

First, we will explain the construction of a multi-circuit socket 10. then its connection to electrical wiring.

In Figures 1 to 3 showing a multi-circuit socket 10, a front view means a view in the direction of the sockets 12, 13 of the phase and center conductor, i.e. typically a view in the direction perpendicular to the wall surface in which the multi-circuit socket 10 is installed. The front view is a view of the external interface of the socket that is user-accessible. The rear view is then the view in which we would see the socket from inside the wall after installation. The front view is then a view in the direction of the sockets 12. 13 on the outer interface of the drawer 10, which is user-accessible, is shown in Fig. 1a and Fig. 2. The front rear view is a view in the direction of the sockets 12, 13 which seen from inside the wall after installation

-3GB 34818 UI sockets into this wall, or a view in the direction of the sockets 12, 13 on the socket before installation from the side which is intended for connection to house wiring. The front rear view of the multi-circuit drawer 10 is in Fig. 1b. The part of the multi-circuit socket 10 that is shown in Fig. 1b is called the internal interface.

The circuit selection socket switch 14 can be rotary or sliding, only embodiments with a rotary socket switch 14 are shown in the figures. As can be seen from Figs. 1a, 1b, the multi-circuit socket 10 is similar to a standard electrical socket in that it comprises a medium socket 13. conductor, the phase conductor socket 12 and that it contains a terminal 15 for the middle conductor at the internal interface. However, unlike a standard socket, the multi-circuit socket 10 has at least two phase terminals 17, i at the internal interface. where i is the serial number of the terminal, which takes values from one to the number of terminals, for the connection of the supply phase supply conductors. Fig. 1a, b shows a solution with a total of four phase terminals 17,1, 17,2, 17,3 and 17 , 4 for connecting the supply phase conductors. The multi-circuit socket 10 further comprises a circuit selection socket switch 14 adjustable to at least two positions, wherein in each of its positions the socket switch 14 electrically connects another of the phase terminals 17, also to the socket 12 of the phase conductor. Typically, the circuit selection socket switch 14 switches between those phase terminals 17 to which one of the supply phase supply conductors is connected, but it is not necessary, it is also possible to switch this circuit selection socket switch 14 to a position which connects to the socket. 12 of the phase conductor, such a terminal 17, i, to which no supply phase supply conductor is connected. In such a position, the multi-circuit socket 10 is set to the off state regardless of the state of other elements in the electrical wiring. The circuit selection socket switch 14 has a control part. Important for setting the circuit selection socket switch 14 is that the control part of the socket switch 14 is part of the user-accessible external interface of the multi-circuit socket 10. This makes it easy to change the circuit to which the appliance is connected without interfering with the wiring. The positions Li, i.e. in this case 1.1, 1.2, 1,3 and 1.4, of the control part of the socket switch 14, which are shown on the external interface of the multi-circuit socket 10 in FIG. 1a, correspond to the phase terminals 17 for connecting the supply phase supply conductors. It is then important for safety that the actuating part of the socket switch 14 is positioned and shaped in front view of the user-accessible outer interface of the multi-circuit socket 10 inside a strip P, the longitudinal axis of which at the junction of the centers of the sockets 12, 13 the distance of the outer edges of the sockets 12, 13 on this longitudinal axis and whose width is 15 mm.

Due to this location of the circuit selection socket switch 14, it is possible to overlap it with any standardized plug 20, as indicated in Fig. 2, where the outline 20.1 is one of the possible embodiments of the plug.

The outer interface of the multi-circuit socket 10 may also include a protective conductor pin 11. The terminal 16 for the protective conductor then corresponds to this pin on the internal interface.

However, it is important for safety that the control part of the circuit selection socket switch 14 can be covered with any plug, i.e. not only a plug with a socket for connecting a protective conductor, but also a plug with a two-pin plug without a protective conductor. The location and shape of this control part of the socket switch 14 are thus adapted to the shape of the outer interface of the multi-circuit socket 10 and the shape of the plug 20 such that after connecting the plug 20 to the multi-circuit socket 10, this control part of the socket switch 14 is covered from the outside by the plug 20.

For example, it is advantageous to provide the multi-circuit socket 10 with a recess from the user-accessible outer interface to the inner interface of the multi-circuit socket 10, the actuating part of the socket switch 14 being located in this recess. This embodiment is shown in Fig. 3a without the plug 20 inserted and in Fig. 3b with the plug 20 inserted.

The connection of the multi-circuit sockets 10 to the electrical distributions can be seen in FIGS. 4 to 7. An example of an embodiment for a housing unit is given, but the same connection can be used elsewhere, preferably in industrial buildings, for example.

-4CZ 34818 UI

Throughout this application, a circuit is understood to mean a supply phase phase conductor connecting a socket or a set of several sockets, or lights or a set of multiple lights, with a phase voltage from a central switchboard, this supply phase supply conductor being fitted with other elements such as circuit breakers 31 or switching elements 32.

Furthermore, for simplicity, we omit the lights and give examples of circuits specifically for sockets, while both standard sockets and multi-circuit sockets 10 can be connected to the circuits:

In the case of a single-phase central switchboard, a circuit means a supply power phase conductor connecting a socket or a set of several L-phase sockets from a central switchboard, the connection being realized by means of a phase terminal or phase terminals on the sockets in question. There can, of course, be more circuits, and thus supply phase phases connected to the L-phase on the one hand and to the phase terminals of the sockets on the other hand.

In the case of a three-phase central switchboard, a circuit means a power supply phase conductor connecting a socket or a set of several sockets to one of the three phases L1, L2 or L3 from the central switchboard; the connection is again made via a phase terminal or phase terminals on the sockets. E.g. in FIG. 4, the multi-circuit socket 10 is four-circuit, which means that it can be connected to 4 different circuits, and thus to four different supply phase conductors, by means of its four phase terminals 17.1, 17.2, 17.3 and 17.4. However, in this exemplary embodiment, all these different supply phase supply conductors leading to the different terminals 17 are also connected to the same phase L2 from the central switchboard. In the case of a three-phase central switchboard, however, other embodiments are of course possible, in which the individual supply phase conductors leading to different terminals 17 and the same sockets are connected to different phases L1, L2, L3 leading from the switchboard, see Fig. 6, where three of the phase terminals 17.1. 17.2 and 17.3 sockets on the left are connected to phase L2 and terminal 17.4 of this socket is connected to phase L1. In general, various combinations are possible, i.e. for example, one group of supply phase power conductors may be connected to phase L1, another group of supply phase power conductors may be connected to phase L2, yet another group of supply phase power conductors may be connected to phase L3. Some of the mentioned groups of supply phase conductors can also be an empty set, some can be single-element, some multi-element, even here different combinations of the number of elements in the groups are possible. The phases to which the specific groups of supply phase supply conductors will be connected are optional, it is possible to choose arbitrarily between the phases L1, L2, L3, while the specific choice will be determined by the designer of the electrical distribution.

The connection comprises at least one multi-circuit socket 10 for powering single-phase appliances, in addition to the multi-circuit sockets 10 it may also comprise standard sockets. Each multi-circuit socket 10 comprises a center conductor socket 13 and a phase conductor socket 12 and has a user-accessible external interface and also has an internal interface. The internal interface of each multi-circuit socket 10 comprises a terminal 15 for the middle conductor and further at least two phase terminals 17, i for connecting the supply supply phase conductors, where i is the serial number of the terminal, which takes values from one to the number of terminals.

The electrical wiring with the multi-circuit sockets 10 comprises a central switchboard and at least two supply phase conductors connected to it. At least two of the phase terminals 17, as well as each multi-circuit socket 10, are connected to one of the supply phase supply conductors. Each multi-circuit socket 10 further comprises a circuit selection socket switch 14 adjustable to at least two positions, wherein in each of its positions the socket switch 14 electrically connects another of the phase terminals 17 to the phase conductor socket 12 of the same multi-circuit socket 10. Of course, sockets without a multi-circuit function can also be connected, i.e. sockets which have a phase terminal fixedly connected to one and still the same supply phase conductor.

-5CZ 34818 UI

It is sufficient for the operation of the basic embodiment of the circuit according to the present technical solution that at least one of the phase terminals 17, i. which is connected to one of the supply phase conductors, and a switching element 34 for switching on and off the electrical connection of this phase terminal 17 is connected to the central switchboard on the supply supply phase conductor connected to this phase terminal 17.

The connection of a plurality of switching elements 34, which expands the possibilities of control and adjustment of the system, is shown in the preferred embodiments according to Figs. 4 to 7. Figs. 6, 7 show the connection with two multi-circuit sockets, from which the disconnection possibilities are clearly visible. connecting appliances connected to these multi-circuit sockets 10 to the individual circuits. There may be a large number of multi-circuit sockets 10 in the circuit.

For safety reasons, it is advisable to add a circuit breaker 31 to each circuit to which the phase terminals 17 and the multi-circuit sockets 10 in the power distribution are connected, as can be seen from FIGS. 4 to 7.

The switching elements 34 may be electromagnetic and / or semiconductor. Switching elements 34 that are electromagnetic include, for example, contactors and / or electromagnetic relays Switching elements 34 that are semiconductor include, for example, solid state relays and / or semiconductor thyristors.

The electromagnetic embodiment of the switching elements 34 is shown in Figs. 4, 6, 7. In this case, the switching element 34 comprises a coil 35 and an electromagnetic switching contact 32.

A semiconductor embodiment of the switching elements 34 is shown in Fig. 5. In this case, the switching element 34 comprises a semiconductor switching contact 33 and a semiconductor control contact 36.

The switching elements 34 can be operated in various ways. For example, individually, this embodiment is not shown in the figures, or more preferably by means of a central circuit selection switch 38 which is connected to at least one switching element 34, preferably to several switching elements 34. as can be seen from Figs. 4, 6, 7. the circuit selection switch 38 may be in a mechanical design.

Another possibility is to supplement the connection with a control unit 39, which is connected to at least one switching element 34, as can be seen in Fig. 5. A voltage source 40 for supplying the control unit and switching the semiconductor switching contacts 33 and semiconductor control contacts 36 is also shown. An embodiment in which the control unit 39 can operate in automatic mode or be remotely controlled by a user, e.g. by telephone, which is not shown in the figures. The embodiment with the control unit 39 can be further extended by connecting the control unit 39 to the central circuit selection switch 38. The latter design allows to combine automatic control, eg according to pre-programmed modes, with mechanical control of the central circuit selection switch by the user.

After switching on the selected switching element 34 in one of the above-mentioned ways, a phase voltage is applied to that of the phase terminals 17, also for the connection of the supply phase supply conductors, which is connected to this switching element 34. It is also possible to switch on or off several switching elements 34 simultaneously, and thus to connect or disconnect the phase voltage at several phase terminals 17, as well as from different sockets. Example: in Fig. 6, the terminals 17,2 of the two multi-circuit sockets 10 are connected to the same circuit via the same switching element 34, namely the one which is the first from the left in this example. Thus, if the socket switch 14 of the two multi-circuit sockets 10 is set to a position in which in each of the multi-circuit sockets 10 it electrically connects the phase terminal 17,2 to the phase conductor socket 12 by switching on / off the switching element 34, which appears first from the left. connects / disconnects from the voltage the appliances connected in both of these multi-circuit sockets 10. At the moment when, for example, the multi-circuit socket 10 on the right in Fig. 6 would have its socket switch set to terminal 17.3. switching the circuit on / off by means of the switching element 34, which is the first from the left in FIG. 6, would not affect the appliance connected to this socket. The terminals 17,1 of the two multi-circuit sockets 10 in FIG. 6 are then connected by way of example so that if the socket

-6GB 34818 The UI switch 14 on these multi-circuit sockets 10 connects the phase terminal 17,1 to the socket 12 of the phase conductor, the appliances in these multi-circuit sockets 10 are permanently switched on. This is suitable eg for refrigerator, freezer. Circuits intended for permanent connection of appliances are not equipped with a switching element 34, as can also be seen in Fig. 6: Thus, some circuits can be permanently switched on, some can be a central circuit selection switch 38 or via a control unit 39 or direct control of switching elements 34 alternately switchable and switchable.

Thus, in combination with the setting of the circuit selection socket switch 14, the user can switch the appliance connected to the multi-circuit socket 10 arbitrarily on and off, e.g. by means of a central switch 38, or set it to switch on and off automatically by programming a control unit 39 which can operate in automatic mode.

There is also the possibility of combined automatic and mechanical control, as explained above. Different circuits can then be controlled in different ways.

Although the connection can also work with a single-phase central switchboard, in the embodiment according to Figs. 4 to 7 there is an example of a connection with a central switchboard, which is three-phase with phases L1, L2, L3. For each of the phase terminals 17, i. which is connected to one of the supply supply phase conductors, this supply supply phase conductor is guided with the system designer of an arbitrarily selected phase selected from the group comprising phases L1, L2, L3. The connection of the individual phase terminals 17 to the individual phases can therefore be combined as desired.

For example, an embodiment is possible in which supply phase conductors from a single phase are fed to all phase terminals 17, as shown in FIG. 5. All phase terminals 17.1 to 17.4 are here connected to phase L2. .

However, in the case of the use of a three-phase central switchboard, connections are also possible in which supply phase conductors from different phases are fed to different phase terminals 17 in the case of one multi-circuit socket 10. E.g. if at least one multi-circuit socket with a maximum of three phase terminals 17, i is used, a preferred embodiment is also possible in which each of the phase terminals 17 and this multi-circuit socket 10 is connected to another of the phases L1, L2 via a supply phase phase conductor. and L3 than the other phase terminals 17, as well as the same multi-circuit sockets 10. Such multi-circuit sockets 10 with two or three phase terminals 17, i, each of which is connected to a different phase, can of course be connected more.

In some embodiments, some of the phase terminals 17 may remain unused and no power supply phase conductor will be applied to them, which can be used to permanently turn off the socket when the switch switch 14 is set to the appropriate position, regardless of the setting of the switching elements. 34. More common, however, is the connection with the connection of the supply phase supply conductors to all the phase terminals 17, and the use of switching elements 34 for switching on or off those circuits on which these switching elements 34 are mounted. On the socket switch 14, the circuits are selected by the user according to the suitability of disconnection from the power supply or connection to it under certain conditions. E.g. refrigerator, freezer are always permanently on, TV, hi-fi, set-top box, router, modem are optionally switchable without power backup, EZS (electronic security alarm) and EPS (electric fire alarm) are optionally switchable with power backup. The advantage of the present connection is that the same appliance or the same type of appliance can be connected to different multi-circuit sockets 10 and by means of a socket switch 14 it is ensured that even in a new location it is connected to a circuit with the required properties, ie to an optionally switchable circuit. permanently switched on, etc.

Fig. 6 shows a similar circuit as in Fig. 4, i.e. with switching elements 34 which are electromagnetic but are further extended by a single-phase local power supply. In contrast to FIG. 4, a circuit breaker 41 of a local source, which is single-phase, is shown here. In the embodiment according to FIG. 6, the phase L3 is partially supplied by this source. A local source switch 42 is also shown, also in a single phase design.

-7 CZ 34818 UI

It may be advantageous to connect appliances that have an increased consumption during the operation of this source to the circuit or phase to which the local power supply is supplied. E.g. the air conditioning unit is connected to the phase to which the local photovoltaic power plant would supply energy. This ensures a higher time concurrence of local production and consumption.

Giant. 7 differs from FIG. 6 in that a three-phase local source is used. The local source circuit breaker 41 and the local source switch 42 are three-phase in this embodiment. A three-phase local power supply usually supplies energy symmetrically to all phases or without the possibility of regulating the power supplied between phases: It may therefore be advantageous to ensure uniform phase loading during operation of this power supply by appropriately connecting multi-circuit sockets 10 to individual circuits and thus phases. For this purpose, the setting of the socket switches 14 and the setting of the switching elements 34 are used. This ensures a higher time concurrence of local production and energy consumption in the case of a three-phase local power supply.

Photovoltaic, wind, water, but also various combustion generators, etc. can be used as local sources.

The connection with at least one multi-circuit socket 10 according to the present technical solution can thus generally be used to select the circuit and the phase to which the appliance will be connected. This makes it possible to ensure the symmetry of electricity consumption from the phases or, conversely, to support the consumption of electricity from a selected phase, especially in distribution systems with a larger number of these multi-circuit sockets 10. Higher energy consumption from a certain selected phase can be advantageous eg if at least part energy to this phase from a local (eg photovoltaic) source, or its consumption is somehow controlled (eg by a remote switching signal, based on variable energy prices, the composition of energy sources in the electricity network or the intensity of their environmental impact).

Electricity savings are also provided, e.g. by the central possibility of disconnecting appliances in standby mode, if all these appliances are connected by socket selection switches 14 on the respective sockets 10 to a certain circuit, which is then switched off by e.g. central circuit selection switch 38. In the circuit, the circuits can be permanently switched on, permanently open, the circuits can be switched off and on alternately, to which the appliance can be connected by setting the socket switch 14 of the circuit selection. It is also important to be able to switch on the backup power supply or to connect a local, eg renewable energy source, all while ensuring user safety. Safety is ensured due to the fact that the accessibility of the socket switch 14 is disabled after inserting the plug 20 into the multi-circuit socket 10, i.e. the multi-circuit socket 10 does not allow switching the circuits of the phase conductors under load. The multi-circuit sockets 10 can be easily reconfigured by the user to any circuit, even in buildings with ready-made electrical wiring, simply by changing the position of the socket switch 14.

Industrial applicability

The construction market already today registers customer requirements for houses that have energy saving systems. The multi-circuit socket can be used when designing new buildings or reconstructing existing ones. In addition, it can be used in industry by switching off single-phase appliances to regulate the total power input to meet the 15-minute maximum.

Claims (14)

CLAIMS FOR PROTECTION An energy-saving electrical circuit comprising at least one multi-circuit socket (10) for powering single-phase appliances, each multi-circuit socket (10) comprising a center conductor socket (13) and a phase conductor socket (12) and having a user-accessible external interface and having also an internal interface, the internal interface of each multi-circuit socket (10) comprising a terminal (15) for the middle conductor and further at least two phase terminals (17.i) for connecting the supply phase phases, where i is the serial number of the terminal, which takes values from one to the number of terminals, the circuit also comprising a central switchboard and connected to it at least two supply phase phase conductors when at least two of the phase terminals (17.i) of each multi-circuit socket (10) are connected to one of the supply phase supply conductors and when each multi-circuit socket (10) further comprises a socket switch (14) of the circuit selection adjustable to at least two positions, wherein in each of its The socket switch (14) electrically connects another of the phase terminals (17.i) to the phase conductor socket (12) of the same multi-circuit socket (10), characterized in that between at least one of the phase terminals (17.i) which is connected to one of the supply phase phase conductors, and a switching element (34) for switching on and off the electrical connection of this phase terminal (17.i) with the central phase terminal is connected to the supply phase phase conductor connected to this phase terminal (17.i) by a central switchboard. switchboard. The circuit according to claim 1, characterized in that it further comprises a central circuit selection switch (38) which is connected to the at least one switching element (34). The circuit according to claim 1, characterized in that it comprises a control unit (39) which is connected to at least one switching element (34). The circuit according to claim 1, characterized in that it comprises a control unit (39) and a central circuit selection switch (38) which is connected to the at least one switching element (34), the control unit (39) being connected to the central switch. (38) circuit choices Wiring according to any one of claims 1 to 4, characterized in that at least two phase terminals (17 i), each of which belongs to a different multi-circuit socket (10), are interconnected. Wiring according to any one of claims 1 to 5, characterized in that the switching elements (34) are electromagnetic and / or semiconductor. Wiring according to claim 6, characterized in that the switching elements (34), which are electromagnetic, comprise contactors and / or electromagnetic relays, and in that the switching elements (34), which are semiconductor, comprise semiconductor relays and / or semiconductor thyristors. Wiring according to any one of claims 1 to 7, characterized in that the central switchboard is three-phase with phases E1, L2, L3 and that for each of the phase terminals (17.i) which is connected to one of the supply supply phase conductors, this supply supply phase conductor is guided with the system designer of an arbitrarily selected phase selected from the group comprising phases L1, L2, L3. Connection according to Claim 8, characterized in that it comprises at least one multi-circuit socket (10) which has a maximum of three phase terminals (17.i) and in which each of its phase terminals (17.i) is connected via a supply phase phase conductor. connected to another of the phases L1, L2 and L3 than the other phase terminals (17.i) of the same multi-circuit socket (10). Connection according to any one of claims 1 to 9, characterized in that the at least one socket switch (14) is rotatable. -9CZ 34818 UI Wiring according to any one of claims 1 to 10, characterized in that the socket switch (14) has an actuating part which is part of a user-accessible external interface of the multi-circuit socket (10), said actuating part of the socket switch (14) having such a location and the shape that in front view of the user-accessible outer interface of the multi-circuit socket (10) lies inside a strip (P) 5, the longitudinal axis of which is at the junction of the socket centers (12, 13), the length of which corresponds to the distance of the outer edges of the sockets (12, 13). ) on this longitudinal axis and whose width is 15 mm. Wiring according to any one of claims 1 to 11, characterized in that the outer interface of the multi-circuit socket (10) also comprises a protective conductor pin (11) and that the inner interface ιο of the multi-circuit socket (10) comprises a protective conductor terminal (16). 6 drawings -10CZ 34818 UI List of reference marks: l.i - the positions of the circuit-breaker socket switch 14 on the external interface of the multi-circuit socket 10, where i takes values from 1 to the total number of phase terminals 17, i 10 - socket (multi-circuit) 20 - plug 11 - protective conductor pin 12 - phase conductor socket 13 - middle conductor socket 14 - socket circuit selector switch 15 - terminal for middle conductor 16 - terminal for protective conductor 17. i - phase terminal (for connection of the supply phase phase conductor), where i takes values from 1 to the total number of phase terminals 20. 1 - outline of the plug 20 after insertion into the socket 10 in front view of the outer interface of the socket 10 31 - circuit breaker 32 - electromagnetic switching contact of switching element 34 (in electromagnetic design) 33 - semiconductor switching contact of switching element 34 (in semiconductor design) 34 - switching element 35 - coil of switching element 34 (in electromagnetic design) 36 - semiconductor control contact of switching element 34 (in semiconductor design) 38 - central circuit selection switch 39 - control unit 40 - voltage source for powering the control unit and switching the semiconductor switching contacts 33 and semiconductor control contacts 36 41 - local source circuit breaker e 42 - local power switch.