EP2431993A1 - Modular low voltage switch - Google Patents

Abstract

The electrical installation device (1) according to the invention is manufactured from a first partial product (10) and from a second partial product (12). The first partial product (10) has a functional group (10 ') and the second partial product (12) has a second functional group (12'). To manufacture the installation device, the second part product (12) is inserted into a housing receiving opening (24) of the first part product (10).

Description

Technical area

The invention relates to the field of electrical installation equipment, in particular the low-voltage switchgear to 1000V, such as DIN rail mounted devices, circuit breakers, residual current circuit breakers, relays, on and off switches, signaling devices or control switches. The invention particularly relates to an installation device according to the preamble of claim 1.

State of the art

Installation devices, in particular surge switch are well known in the art. For example disclosed EP 1 394 832 A2 Such, referred to as remote switch installation device. Other such installation devices are from the EP 0 641 003 B1 , of the EP 0 514 296 B1 or from the German utility model DE1812292U known.

Brief description of the invention

The object of the invention is to provide installation devices that can be modular or in which the final assembly is simplified.

The above object is achieved according to the invention by a first part product having the features of claim 1, by a second part product having the features of claim 8 and by an installation device having the features of claim 13. Furthermore, the object is achieved by a method according to the invention according to claim 16.

Preferred embodiments and advantages will become apparent from the dependent claims and the figures.

Brief description of the drawings

Fig.1

Explosionszeichnung des erfindungsgemässen Installationsgerätes besehend aus dem erfindungsgemässen ersten Teilerzeugnis, welches eine Gehäuseaufnahmeöffnung zum Aufnehmen des erfindungsgemässen zweiten Teilerzeugnisses aufweist;

Fig. 2

in Ansicht das erste Teilerzeugnis;

Fig. 3

in perspektivischer Darstellung das als Elektromagnet ausgebildete zweite Teilerzeugnis, wobei dieses zweite Teilerzeugnis derart dargestellt ist, dass Anschlusskontakte eines Elektromagneten sichtbar sind;

Fig. 4

in Ansicht das erste Teilerzeugnis, in welches das zweite Teilerzeugnis eingesetzt ist;

Fig. 5

in Ansicht das erste Teilerzeugnis des als Stromstossschalter ausgebildeten Installationsgerätes mit teilweise entferntem Gehäuse;

Fig. 6

in Ansicht das als Stromstossschalter ausgebildete Installationsgerät bestehend aus dem ersten Teilerzeugnis und dem zweiten Teilerzeugnis, wobei das Gehäuse des ersten Teilerzeugnisses teilweise entfernt ist;

Fig. 7

in Ansicht das erste Teilerzeugnis des als sequentieller Stromstossschalter ausgebildeten Installationsgerätes mit teilweise entferntem Gehäuse; und

Fig. 8

in Ansicht das erste Teilerzeugnis des als Installationsrelais ausgebildeten Installationsgerätes mit teilweise entferntem Gehäuse.

In the following, the subject invention will be explained in more detail with reference to a preferred embodiments, which are illustrated in the accompanying figures. It shows purely schematically:

Fig.1

Exploded view of the installation device according to the invention, comprising the first part product according to the invention, which has a housing receiving opening for receiving the second part product according to the invention;

Fig. 2

in view the first partial product;

Fig. 3

in a perspective view of the trained as an electromagnet second part product, said second part product is shown such that terminal contacts of an electromagnet are visible;

Fig. 4

in view, the first partial product into which the second partial product is inserted;

Fig. 5

in view of the first part of the product designed as a surge switch installation device with partially removed housing;

Fig. 6

in view of the formed as a surge switch installation device consisting of the first part product and the second part product, wherein the housing of the first part product is partially removed;

Fig. 7

in view of the first part of the product designed as a sequential surge switch installation device with partially removed housing; and

Fig. 8

in view of the first part of the product designed as an installation relay installation device with partially removed housing.

The reference numerals used in the figures and their meaning are listed in the list of reference numerals. Basically, the same or equivalent parts are provided with the same or similar reference numerals in the figures. For the understanding of the invention non-essential parts are not shown in part. The described embodiments are exemplary of the subject invention and have no limiting effect.

Way to carry out the invention

Electrical installation device 1, in particular low-voltage switching device are formed with different functions, for example as a particular in Fig. 5, 6 Shown shock current switch (also referred to as a surge switch or remote switch), as a in Fig. 8 shown installation relay, as a in Fig. 7 shown sequential shock current switch or as a circuit breaker. The invention will now be described by way of example with reference to the surge current switch, sequential surge current switch and installation relay shown in the figures.

That in the Fig. 1-6 At least partially shown, designed as a surge circuit installation device 1, according to the invention by a in Figs. 1-2, 4-6 represented first partial product 10 and by a in Fig. 1, 3-4, 6 represented second part of product 12, wherein the second part of product 12 is used for the functional completion of the installation device 1 in the first part of product 10. Alternatively, the second partial product 12 can also be attached to the first partial product 10.

This in Figs. 1-2, 4-6 shown first part of the product 10 has a housing 14 which is mounted on a so-called DIN rail or DIN rail 15. The housing 14 has two housing shells 16, each forming a housing part (in Fig. 5, 6 in each case one of these two housing shells 16 of the first part product 10 is not shown). Each housing shell 16 has a side walls 18, wherein the two side walls 18 are arranged parallel to each other and at right angles to the course of the DIN rail 15. Further, a portion of the two side walls 18 interconnecting lateral surface 20 is formed by each of the two housing shells 16. Another part of this lateral surface 20 is formed by a carrier element 22 which is arranged between the two housing shells 16. Of course, such a housing 14 may also be formed in more or less than three parts.

According to the invention, the first part of product 10 in the Fig, 1, 2 . 5 visible housing receiving opening 24, which is intended to receive the second partial product 12. The housing receiving opening 24 is formed in the present example through a hole in one of the two side walls 16 and through a hole aligned with the receiving opening. The thus formed as a blind hole Housing receiving opening 24 is intended to be in Fig. 1 . 3 . 4 . 6 shown second partial product 12 of the installation device 1 record. Alternatively, the housing receiving opening can also be formed in the lateral surface. As a further alternative embodiment, instead of the housing receiving opening, the first part product 10 may have a receiving means by means of which the second part product 12 can be connected to the first part product (10). The second partial product 12 is held in these alternative embodiments in each case on the first part of the product 10 and not directly on the DIN rail.

The second part product 12 is essentially formed by an electromagnet 26 which has a core 28 and a magnet coil 30 mounted on the core 28. The electromagnet 26 forms a second functional group 12 '. Next, the second partial product 12 has two connection contacts 31 (see Fig. 3 ), which are electrically connected to the winding of the magnetic coil 30 and are intended to act together with arranged on the first part of product 10 mating contacts 32 to supply the electromagnet 26 with power. The electromagnet 26 is intended to cooperate with a magnet armature 34 arranged in the first part product 10 in order to drive a switching mechanism 36 of the first part product 10. Consequently, the electromagnet 26 forming the second functional group 12 'interacts with the magnet armature 34 belonging to a first functional group 10'.

In order to guide the magnet armature 34, the second part product 12 has two guide fingers 38 for guiding the magnet armature 34. Instead of guiding the magnet armature 34 by means of the guide fingers 38, an alternative guide device may also be provided on the first part product 10 or second part product 12.

Immediately adjacent to the housing receiving opening 24, the magenta tank 34 is movably arranged in the first part product 10 and is intended to cooperate with the electromagnet 26 of the second part product 12. By acting in cooperation with the electromagnet 26 magnet armature 34 arranged in the first part of product 10 switching mechanism 36 of the installation device 1 is driven. By means of the switching mechanism 36, in particular a contact bridge 40 is moved such that by means of the contact bridge 40, a first contact 42 of the first part product 10th and a second contact 44 of the first component 10 can be electrically connected to each other and separated again. The first contact 42 is connected to a first terminal 46 and the second contact 44 to a second terminal 48 via an electrical conductor 50. The first connection terminal 46, the second connection terminal 48 and the conductors 50 are arranged in the first part product 10 such that they are held stationary in the housing 14.

In order to supply the current arranged in the second part of the product 12 solenoid 30, the first part product 10 has two magnetic coil terminals 52. The connecting conductors 54, 56 are freely accessible from the housing receiving opening 24 and form the mating contacts 32 for the connection contacts 31 formed on the second part product 12. The cooperation of the connection contacts 31 with the mating contacts 32, the electrical connection between the solenoid terminals 52 and the electromagnet 26 is made. The electrical connection between the connecting conductors 54, 56 and the connection contacts 31 preferably takes place via a press contact. The magnetic coil terminals 52 and the connecting conductors 54, 56 are arranged in the first part of the product, that they are held stationary in the housing 14.

Through the housing receiving opening 24 of the first partial product 10, in which the second partial product 12 is used, it is possible that the first partial product 10 can be produced and tested independently of the second partial product 12. Likewise, the second partial product 12 can be produced and tested independently of the first partial product 10.

After producing the first partial product 10 and the second partial product 12, the installation device 1 can be produced by inserting the second partial product 12 into the first partial product 10.

However, neither the first partial product 10 nor the second partial product 12 can be used without the respective other partial product 10, 12 in an electrical installation, in particular in a control box. In other words, the function of an electrical installation device is completely formed neither in the first part product 10 nor in the second part product.

The housing receiving opening 24 can be closed by means of a closure element 60. Preferably, a housing cover 60 'is used for this purpose, which preferably can not be removed again from the housing 14. Further, by means of the housing cover 60 'the second part product 12 in the direction in which the second part product 12 is inserted into the first part product 10, by means of one or more spring elements (not shown) are firmly held.

The first partial product 10 of the surge current switch, the sequential surge current switch and the installation relay differ essentially only by the switching mechanism 36, each in the FIGS. 5 and 6, 7 8 and 8 and will be explained briefly in the following and are known from the prior art, as mentioned, for example. The outer housing mold 14 of the first part product 10 is selected to be substantially equal for the surge current switch, the sequential surge current switch, and the installation relay. For example, the sequential shock current switch has no operating lever 67 for manually operating the sequential surge circuit switch. Furthermore, the sequential shock current switch also has no mechanism for transmitting the movement 70 of the switching mechanism 36 to adjacent auxiliary devices.

As in Fig. 5, 6 2, the switching mechanism 36 of the surge circuit breaker is constituted by the electromagnet 26 forming the second functional group 12 '(in FIG Fig. 6 shown) driven. The electromagnet 26 cooperates with the magnet armature 34 for actuating the switching mechanism 36. The armature 34 is movable from a first position (shown in the figures) in which the magnet armature 34 is biased by a spring element 64 in the absence of magnetic field, in a second position (not shown in the figures) movable, in which the magnet armature 34 to the Electromagnet 34 is applied. To the movement of the armature 34, a mandrel 66 is directly coupled. Instead of actuating the mandrel 66 by means of the electromagnet 26, the mandrel 66 can alternatively be actuated manually by means of the actuating lever 67. This mandrel 66 cooperates with a bistable element 68. The contact bridge 40 is directly coupled to the movement of this bistable element 68. Furthermore, a movement transmission element 70 is coupled to the movement of the bistable element 68, so that the movement can be transferred to further auxiliary devices. Such an auxiliary device may for example be an auxiliary contact module, so that in the Fig. 5, 6 bipolar executed shock current switch can be extended by one or more further, switchable poles. Instead of in the Fig. 5, 6 shown two-pole embodiment, the shock current switch can also be formed unipolar. The same applies to the other installation devices shown in the figures.

The first functional group 10 'in the exemplary embodiment of this surge current switch comprises the magnet armature 34, the switching mechanism 36, which is formed in particular by the mandrel 66 and the bistable element 68, and the contact bridge 40 and the contacts 42, 44 cooperating with the contact bridge.

The particular in Fig. 5, 6 shown shock current switch operates as follows. In a first cycle of the electromagnet 26, in which by switching on and off of the electromagnet 26 of the armature 34 of the in Fig. 5, 6 The first position shown in the second position (not shown) and moved back, is also the mandrel 66 of the in Fig. 5, 6 shown position in the direction of the bistable element 68 and moved back again. This movement of the spike 66 biases the bistable element 68 from its first bistable position, in which the contact bridge 40 abuts the first contact 42 and the second contact 44, and thus the first connection terminal 46 is electrically connected to the second connection terminal 48. moved to the second bistable position, in which the contact bridge 40 is separated from the first contact 42 and from the second contact 44. In a second cycle of the electromagnet 26, the bistable element 68 is brought from its second bistable position to its first bistable position.

The switching mechanism 36 of in Fig. 8 Installation relay shown is essentially the same design as in Fig. 5, 6 Shown switching mechanism 36 of the surge circuit. Instead of the bistable element, the element 72 cooperating with the mandrel 66 is monostable. Thus, at each duty cycle of the solenoid 26, the electrical connection between the first terminal 42 and the second terminal 44 is either opened or closed, depending on whether in the monostable position of the element 72, the contact bridge 40 to the first contact 42 and the second contact 44th is present or not.

The first functional group 10 'includes in the embodiment of this installation relay the armature 34, the switching mechanism 36, which in particular is formed by the mandrel 66 and the monostable element 72, as well as the contact bridge 40 and the contacts 42, 44 cooperating with the contact bridge.

In the in Fig. 7 As shown, the arbor 66 cooperates with an element 74 which can assume four stable positions, the element 74 in FIG Fig. 7 clockwise in each case at a duty cycle of the electromagnet 26 is rotated by 90 °. The sequential surge current switch has two contact bridges 40, which in Fig. 7 arranged one behind the other. For each contact bridge 40, the sequential surge current switch further includes a respective first terminal 46 electrically connected to a first contact 42 and a second terminal 48 electrically connected to a second contact 44. The pair of first terminals 46 and the pair of second terminals 48 are like the two contact bridges 40 in FIG Fig. 7 arranged one behind the other. The two contact bridges 40 are coupled to the movement of the element 74, for example, as follows. In the first stable position, both contact bridges 40 are open. In the second stable position, the first contact bridge is closed and the second is open. In the third stable position, the first contact bridge is open and the second closed. In the fourth stable position both contact bridges are closed. By a duty cycle of the electromagnet, the element 74 is moved to its next stable position, with the fourth stable position followed by the first stable position.

The first functional group 10 'comprises in the embodiment of this sequential surge circuit switch the armature 34, the switching mechanism 36, which in particular by the mandrel 66 and the plurality - in the above embodiment four - stable positions having element 74 is formed, and the contact bridges 40 and with the contact bridge 40 cooperating contacts 42,44.

The first functional group 10 'is in each case arranged in a stationary manner in the housing of the first part-product 10 in such a way that it can operate as intended.

As already mentioned, the housing 14 of the surge current switch, the sequential surge current switch and the installation relay are formed substantially the same. In particular, the housing receiving opening 24 of these three installation devices has the same embodiment and the connecting conductors 54, 56 are within the Housing receiving opening 24 each arranged at each type of these three installation device 1 in the same place. This allows the same second sub-product 12 to be inserted into both the first sub-product 10 of the surge circuit breaker, the first sub-product 10 of the sequential surge circuit breaker, or the first sub-product 10 of the installation relay. In other words, the second partial product 12 can be used in different types of the first partial product 10.

Furthermore, several types of second sub-products 12 may be provided which have an externally at least similar shape. In this case, "similar" means that different types can be inserted into the same receiving opening 24 of the first part product 10 and can be operatively connected to it. For example, the solenoid 26 can be adapted to different voltages, so that the solenoid can be operated either with 12 V, 110V or 240V. Of course, any other voltages are also conceivable. In particular, the voltages for operating the electromagnet 26 may be different from the voltages to be switched by means of the switching contact formed by contact bridge 40, first contact 42 and second contact 44.

In an advantageous manner, an installation device 1 composed by the first part product 10 and the second part product 12 enables cost-effective and rapid assembly of installation devices 1 to different electrical conditions. By means of the installation devices 1 described above, the type of installation device 1 can be selected by the choice of the first partial product 10 and by choosing the second partial product 12, the installation device 1 formed from the first part product 10 and the second part product 12 can operate at different voltages Electromagnet 26 of the second part products 12 are adapted. Adjustments of the first sub-product to the respective voltages for operating the second sub-product are not necessary.

Consequently, it is possible by means of three different first partial products 10, such as the first partial products of the surge circuit breaker, the installation relay and the sequential surge circuit breaker and three to different Tension adjusted second sub-products to train a total of nine different installation equipment.

In the in Figs. 1-2, 4-8 shown as shock current switch, sequential surge circuit switch and installation relay trained first partial products 10 essentially defines the switching mechanism 36 the type of installation device 1. The switching mechanism 36, which is independent of the electromagnetic system of the installation device 1, forms a first functional group. Furthermore, the contact bridge 40, the first contact 42 and the second contact 44 can be counted to the first functional group of the surge switch, the sequential surge switch and the installation relay. This first functional group is at least largely independent of the voltage to be switched as well as the current or can be used for various voltages up to typically 690 V and currents up to typically 63 A. The first functional group essentially has the switching mechanism.

In the second part product 12, a second functional group is formed by the electromagnet 26. In order for the installation device 1 composed of the first part product and the second part product to operate reliably and to different voltages such as 1 V, 8 V, 12 V, 14 V, 110 V, 240 V or other voltages to typically 690 V designed to drive the electromagnet 26 can be, the electromagnet 26 and thus the second functional group must be adapted to the voltage for operating the electromagnet 26. The voltage for operating the second functional group 12 'may differ from the voltage of the first functional group 10'.

The first functional group may further include at least one of the following parts of the first part product: first terminal 46, second terminal 48, electrical conductors 50, magnetic coil terminals 52, connection conductors 54, 56 and armature 34.

The second functional group may further include at least one of the following parts of the second part product: core 28 of the electromagnet 26 and solenoid 30. Further, the armature 34 could also be part of the second functional group and thus not part of the first functional group. Likewise, other parts such as solenoid terminals 52 and the connection conductors 54, 56 between these solenoid terminals 52 and the electromagnet 26 belong to the second functional group.

If the installation device is designed as a circuit breaker, the first functional group may be formed by one of the terminal contacts and by a stationary arcing contact. The second functional group may be formed by the bimetal necessary for triggering the switch lock and the coil. By means of the bimetal, a protected by means of a circuit breaker electrical line is protected against overload due to excessive current for a long period of time, while by means of the solenoid protection of the electrical line is achieved against short-term overcurrents. The choice of the bimetal and the coil in a circuit breaker, the maximum permissible amperage that may briefly and / or long-term load the electrical line, determined.

Furthermore, the first functional group of the first subassembly of the circuit breaker may also include an arc extinguishing package or an arc extinguishing chamber.

LIST OF REFERENCE NUMBERS

1

installation device

10

First partial product

10 '

First functional group

12

Second partial product

12 '

Second functional group

14

casing

15

DIN rail / DIN rail

16

Housing shells (housing parts)

18

Side wall

20

lateral surface

22

support element

24

Housing receiving opening

26

electromagnet

28

core

30

solenoid

31

terminals

32

mating contacts

34

armature

36

switching mechanism

38

guide fingers

40

Contact bridge

42

First contact

44

Second contact

46

First connection terminal

48

Second connection terminal

50

Electric conductors

52

Solenoids terminals

54, 56

connecting conductors

60, 60 '

Closing element, housing cover

64

spring element

66

mandrel

67

actuating lever

68

Bistable element

70

Motion transmitting member

72

Monostable element

74

Multiple stable element

Claims (17)

First partial product (10) of an electrical installation device (1), in particular a low-voltage switchgear comprising a housing (14) of the installation device (1) and a first functional group (10 ') of the installation device (1), wherein the first functional group (10'; ) is arranged in the housing (14), characterized in that the housing (14) has a receiving means (24) by means of which a second part product (12) of the electrical installation device (1) with the first part product (10) is connectable, said second sub-product (12) includes a second functional group (12 ') of the installation device (1) intended to interact and / or interact with the first functional group (12'). First partial product according to claim 1, characterized in that the receiving means is formed by a housing receiving opening (24) and the second partial product (12) can be inserted into the first partial product (10). The first part-product according to claim 1 or 2, characterized in that by bringing the second part-product (12) into engagement with the first part-product (10) or by inserting the second part-product (12) into the first part-product (10) and into operative connection the first functional group (10 ') with the second functional group (12'), the electrical installation device (1) is functional. First partial product according to one of claims 1 to 3, characterized in that the first functional group (10 ') of the housing (14), which in particular at least two housing parts (16), enclosed and / or held stationary in the housing (14) or is arranged. First partial product according to one of claims 1 to 4, characterized in that the housing (14) has two parallel aligned, at least substantially planar side walls (18), wherein the housing receiving opening (24) is disposed in one of the side walls (18). First part product according to one of claims 1 to 5, characterized in that the first functional group (10 ') comprises at least one of the following elements: mating contacts (32), magnetic armature (34), switching mechanism (36), contact bridge (40), contact (42, 44), terminal (46, 48), electrical conductors (50), solenoid terminal (52), connection conductors (54, 56). First partial product according to one of claims 1 to 6, characterized in that the elements of the first functional group are largely independent of the voltage and / or current flowing through the installation device (1) and / or by means of which the installation device (1) is controlled. Second partial product (12) which is intended to be connected to a first partial product (10) according to one of claims 1 to 7 or which is intended to be used in a first partial product (10) according to one of claims 1 to 7 to be, wherein in the second part product (12) a second functional group (12 ') of an electrical installation device (1) is formed, characterized in that by means of various embodiments of the second functional group (12') the installation device (1), formed by the first part product (10) and the second part product (12) can be assembled or adapted to different voltages, currents and / or other switching conditions of the installation device. Second partial product according to claim 8, characterized in that the second functional group comprises a magnetic coil (30). Second partial product according to claim 9, characterized in that the magnetic coil (30) serves for driving the first partial product (10) formed in the first functional group. Second partial product according to claim 9, characterized in that the magnetic coil (30) serves for detecting a short-term overcurrent. Second partial product according to claim 9 or 11, characterized in that the second functional group (12 ') comprises a bimetal which serves to detect a long-term overcurrent. Electrical installation device (1), which is formed by a first part product (10) according to one of claims 1 to 7 and by a second part product (12) according to one of claims 8 to 12. Electrical installation device according to claim 13, characterized in that the housing receiving opening (24) by a closure element (60) is closed, which is in particular formed by a housing cover (60 ') or by a cast or sprayed closure body. Electrical installation device according to claim 13 or 14, characterized in that the housing receiving opening (24) closing closure body is not removable from the housing (14). Method for producing an electrical installation device (1) according to one of Claims 13 to 15, in which first a first part product (10) according to one of Claims 1 to 7 and a second part product (12) according to one of Claims 8 to 12 are produced, and in a subsequent method step, the second part product (12) is inserted or placed in or on the first part product (10). Method for producing an electrical installation device (1) according to claim 16, characterized in that before the second part product (12) is inserted or placed in the first part product (10), a first functional group (10 ') of the first part product (10 ) and / or a second functional group (12 ') of the second part-product (12) is tested.

Images