RU2637500C2 - Distribution unit for electrical plant - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: layout of the terminal block has a mounting bar (2) and modules (3), which can be mounted on the mounting bar (2) one by one in a row. The modules (3) have an insulating housing (4), with each of the housings (4) and mounting bar (2) have devices designed to insert modules (3) into the mounting bar (2) transverse relative to the longitudinal direction of the mounting bar (2). Hereby the distribution unit (1) has the first and the second support (5, 6) for the mounting bar (2), available at a distance from one another on the support base (7), while the mounting bar (2) has the connecting parts (8, 9), formed at their opposite narrow ends, with snaps (10), which can be released when the user clicks them towards the free end of the mounting bar (2) with a tool or finger and which are moved to the holding position. The mounting bar (2) is made as an elongated bar-like rod, which has two rectangular wide plates (11, 12) with long faces, connected with two rectangular narrow plates (13, 14) with short faces, while the long edges (15) of the wide plates (11, 12) and the narrow edges (16) of the narrow plates (12, 13) define two narrow side sections (17, 18) with long faces. The two wide plates (11, 12) are fastened together by an elongated jumper (19) extending from the first narrow plate (13) to the other narrow plate (14) in a zigzag manner.

EFFECT: creation of a new type of the distribution unit in which the amount of material of the mounting bar has been reduced to a very small amount with the provision of high functional strength and compact geometry.

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Description

FIELD OF TECHNOLOGY

The invention relates to a distribution unit for an electrical installation comprising an arrangement of a terminal block, in particular for connecting protective earth wires and neutral wires (PE / N terminals), wherein the arrangement of the terminal block has an installation strip and modules that can be mounted on the installation strip one after another in a row, these modules have an insulating casing, each of the casing and the mounting strip have devices for inserting the modules into the mounting strip transversely relative to the longitudinal a mounting strap direction, according to the preamble of claim. 1 claims.

BACKGROUND OF THE INVENTION

EP 1217693B1 shows the layout of the terminal block for a distribution unit for electrical installation, in particular for connecting the protective earth wires and neutral wires (PE / N terminals), wherein the layout of the terminal block has a mounting strip and modules that can be mounted on the mounting strip one after the other different in a row, these modules have an insulating casing, each of the casing and the mounting strip have devices for inserting the modules into the mounting strip transverse to the longitudinal direction the installation strip, while these devices contain a hook element that is connected to the housing having a hook branch that hooks onto the installation strip, and the installation strip has connecting parts formed at its opposite narrow ends, each of these connecting parts has a latch that can and which is shifted to the holding position, while the mounting plate is formed by an angular profile having a first and second profile branch, each of which has a free paradise, so that the free edge of the first profile branch is placed between the hook branch of the hook element by the module body when the module is inserted into the mounting rail.

The present invention is the creation of a new type of distribution unit, in which the amount of material of the mounting plate is reduced to a very small amount and the creation of high functional strength with compact geometry.

According to the invention, the above-described task of saving material and space is solved by the distribution unit with the features specified in paragraph 1 of the claims. According to the invention, the mounting bar is formed in the form of an elongated, bar-shaped rod, which has two rectangular wide plates with long edges, which are connected by two rectangular narrow plates with short edges, while the long edges of wide plates with long edges and the narrow edges of narrow plates with short edges define two narrow lateral sections with long edges, and two wide plates with long edges fastened together by means of an elongated bridge passing from one of the narrow plates with short edges to another narrow plate with short edges in a zigzag fashion.

An advantage of the device according to the invention is that the bar-shaped rod can be made very thin in the form of a hollow wall structure, which will save material, weight and space, and due to the zigzag bridge in the space between two wide plates with long faces, very rigid and steady design. The mechanical strength of the mounting plate thereby depends on its height and width in conjunction with a zigzag bridge and the wall thickness of wide plates with long edges. A zigzag jumper may be formed as a zigzag rib. It serves to achieve high bending resistance in a bar-shaped rod with a small thickness. The bar-shaped bar according to the invention does not have to have an additional profiled branch to achieve mechanical strength and high bending resistance.

Preferred embodiments are disclosed in the features of the dependent claims.

According to a preferred aspect of the invention, the distribution unit has a first and second support for the mounting strip, spaced apart from one another on the supporting base, the mounting strip being attached to the supports, the mounting strip has connecting parts formed at its opposite narrow ends, each of these connecting parts has a latch that can be released when it is pressed towards the free end of the installation strip with a tool or finger and which is offset e hold.

According to a preferred aspect of the invention, the zigzag jumper or rib is a wave-like curve. The wave can have any shape. Rectangular or triangular, sinusoidal or trapezoidal waveforms are preferred, all of which can preferably be applied.

According to a preferred aspect of the invention, the envelope waveform corresponds to narrow side sections with long edges. Thus, in a preferred example of a rectangular or trapezoidal waveform, the upper and lower lines of the rectangle or trapezoid will be flush with two narrow side sections with long edges. This means that the upper and lower elongated side sections of the elongated beam-shaped rod are embodied by the upper and lower lines of a rectangle or trapezoid, in a general sense they are embodied by the envelope of the waveform of a zigzag or wave-like jumper or rib.

According to a preferred aspect of the invention, the mounting strip has protruding rods oriented transversely with respect to the longitudinal direction of the mounting strip, arranged parallel to each other, formed externally to one of its rectangular wide plates with long faces, each of the insulating bodies having at least one slot oriented transversely relative to the longitudinal direction of the mounting plate and made with the possibility of forced locking of the rod in the slot when inserted ke the module housing into the mounting plate. The protruding rods in combination with slots in the housing serve to attach the module housings to the side wall of the mounting strip in the absence of any additional profiled supporting branch.

According to a preferred aspect of the invention, the connecting part has a locking element to limit the tolerance of the latch in its released position.

According to a preferred aspect of the invention, the supports are in the form of a cube or a truncated pyramid and the connecting parts are in the form of an open box, the latch being a rod elastically attached to one of the inner side walls of the open box, and the rod has a blocking element at its first end that engages in a recess formed in the support, and has a pushing element at its second end, which protrudes above the narrow side sections with long edges, while the blocking element is formed in the form of lzheniya each of the other three side walls of the open boxes in this direction and ends substantially flush with the pusher member.

According to a preferred aspect of the invention, the distribution unit has at least one third support located between the first and second support to prevent the mounting plate from tilting.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail using the description of the embodiment with reference to the accompanying drawings, in which:

FIG. 1 shows an embodiment of a distribution unit according to the invention,

FIG. 2 shows an alternative embodiment of a distribution unit according to the invention,

FIG. 3 shows a module oriented towards the mounting strip according to the invention,

FIG. 4a shows a mounting strip according to the invention,

FIG. 4b shows the mounting strip in FIG. 4, but in a plan view,

FIG. 4c shows the mounting strip in FIG. 4, cut along a plane parallel to its wide side with long edges,

FIG. 5 shows a detailed view of the first supports,

FIG. 6 shows a detailed sectional view of a connecting part of a mounting plate according to the invention engaged with a supporting part of a support base.

DESCRIPTION OF PREFERRED EMBODIMENTS

In FIG. 1, 4a, 4b, 4c and 3, a distribution unit 1 for an electrical installation is shown. The distribution unit 1 has a support base 7 in the form of a mounting plate. There are two places for mounting the T-bar 32, also called DIN rail, on the supporting base 7. Instead of the T-bar 32 shown, any other kind of profiled rails allowed by various technical standards that are used in different countries around the world for electrical distribution can be used shields. The T-rail is used to install electrical equipment devices, such as miniature circuit breakers (MCMs), residual current circuit breakers (RCCBs), contactors, overvoltage protection devices or the like. In FIG. 1, as an example of an MCB, the device 33 is mounted on the T-rail 32. In the switchboard 1 shown in FIG. 1, two such T-rails can be installed in parallel and at a distance from each other, despite the fact that only one of them is shown, which is located close to the upper edge 34 of the mounting plate 7 of the distribution unit 1.

The distribution unit 1 further comprises a terminal block arrangement, in particular for connecting the protective earth wires and neutral wires (PE / N terminal). The layout of the terminal block is located on the upper side 34 of the mounting plate 7. It can also be located on the lower side opposite the upper side 34, or the layout of the terminal block can be located on the upper side 34 and on the lower side. The layout of the terminal block has a mounting strip 2 and modules 3, in FIG. 1 as an example, only one module 3 is shown, which can be mounted on the mounting strip 2 one after another in a row.

The layout of the terminal block usually has a conductive rail and several connecting elements designed to connect the conductors to the conductive rail. Each of the modules 3 has at least one of the connecting elements. Modules 3 have an insulating casing 4 and a section of the conductive rail (not shown in Fig. 1), which is located inside the housing 4. The sections of the conductive rail form a conductive rail, and the layout of the terminal block has connections designed to electrically connect the sections of the conductive rail of the modules that are installed one after the other on the mounting plate.

Each of the housings 4 and the mounting plate 2 have devices for inserting the modules 3 into the mounting plate 2 transversely relative to the longitudinal direction of the mounting strip 2. These devices on the side of the mounting strip 2 are formed in the form of protruding rods 20 oriented transversely relative to the longitudinal direction of the mounting strip 2 parallel to each other friend, formed outward from one of its rectangular wide plates 11, 12 with long faces. The devices on the side of the insulating casing are made in the form of at least one slit 21, oriented transversely relative to the longitudinal direction of the mounting strip 2 and are configured to force the rod to lock in the slot 21 when the module housing 4 is inserted into the mounting strip 2.

The distribution unit 1 has a first and second support 5, 6 for the mounting strip 2, located at a distance from one another on the support base 7. Next to the first and second supports 5, 6, there are additional first and second supports 5 ', 6' located a short distance below the first and second supports 5, 6. The height above the mounting plate 7 of the first and second supports 5, 6 is greater than the height above the installation plate 7 of the additional first and second supports 5 ', 6'. Thus, the additional first and second supports 5 ', 6' provide mounting of the mounting strip 2 close to the mounting plate 7, and the first and second supports 5, 6 provide installation of the mounting strip 2 at a certain distance above the mounting plate 7. It may even be so that two mounting strips are installed, each equipped with terminal blocks, one on the first and second supports 5, 6, and the other on the additional first and second supports 5 ', 6'. FIG. 1 shows a situation where the first mounting strip 2 ′ is attached to the additional first and second supports 5 ′, 6 ′, the second mounting strip 2 is shown in a position prior to being attached to the supports, arrows indicate the direction of insertion into the supports 5, 6. FIG. 2 shows a situation where the mounting plate 2 is attached to the upper first and second supports 5, 6.

The mounting plate 2 is attached to the supports 5, 6, for this purpose, the mounting plate 2 has connecting parts 8, 9 formed at their opposite narrow ends. Each of the connecting parts 8, 9 has a latch 10, which can be released under its pressure towards the free end of the mounting plate 2 with a tool or finger. The latch 10 is biased into the holding position.

FIG. 5 shows that the supports 5, 5 ′, and, of course, also 6 and 6 ′, although not shown in FIG. 5 are in the form of a cube or a truncated pyramid. On their upper side, each of the supports 5, 5 ', 6, 6' has a fastening part 35, which is a tooth smaller in the lateral extension than the upper side of the supports 5, 5 ', 6, 6', and which provides a recess 26 , which serves to block, and allows you to keep the interaction of the latch with the supports 5, 5 ', 6, 6' when the latch is in the holding position.

In a cross-sectional view of FIG. 6, it can be seen that the connecting parts 8, 9 are in the form of an open duct, the latch 10 being a rod 23 resiliently attached to one of the inner side walls 24 of the open duct. For attaching the rod 23 there is another, shorter rod 36. The rod 23 is located essentially parallel to the vertical extension of the inner side wall 24 of the box. The attachment point of the additional rod 36 to the rod 23 is essentially in the middle between the two opposite ends of the rod 23. Thus, when you press the upper end of the rod 23, indicated as a pushing element 27, towards the free end of the mounting plate 2, this means clockwise in FIG. 6, the lower end holding the locking element 25 is also bent clockwise and moves away from the free end of the mounting strip 2.

The shaft 2 has a locking element 25, here in the form of a snap protrusion, at its first end, lower end according to FIG. 6. As shown in FIG. 6, in the holding position, the blocking member 25 engages in a recess 26 formed in the fastening portion 35 of the support 5.

In order to release the latch, it is necessary to exert pressure on the pushing member 27 in a clockwise direction in FIG. 6. As described above, further, the locking element 25 will also slightly rotate in a clockwise direction, and as a result, the locking element will move from the recess 26 to release the latch.

In order to provide easy access to the pushing member 27 for a person’s finger or for a tool, for example, a screwdriver, the pushing member 27 at its second end protrudes above the narrow side sections 17, 18 with long edges.

When pushing the latch to release it, there is some danger of excessive displacement or excessive pushing, which means that pushing additionally even after removing the locking element 25 from the recess continues clockwise with the risk of overloading and damage to the additional shaft 36. In order to eliminate such a risk, the connecting part 8 has a locking element 22 to limit the tolerance of the latch 10 in its released position. It is formed as a continuation of each of the three other side walls 28, 29, 30 of the open duct, forming the connecting part 8, see FIG. 6, in the direction and ending substantially at the same level with the pushing member 27. The distance from the edges of the additional walls to the pushing member 27 is sufficient only to allow it to rotate sufficiently to remove the locking member 25 from the recess. When an attempt is made to push further, the finger or tool is blocked at the free edges of these additional walls, thus overloading the latch is eliminated.

As can be seen further in FIG. 4a, 4b, 4c, the mounting strip 2 is formed in the form of an elongated, bar-shaped rod. This rod has two rectangular wide plates 11, 12 with long faces that are connected to two rectangular narrow plates 13, 14 with short faces. The long edges 15 of the wide plates 11, 12 with long edges and the narrow edges of 16 narrow plates 13, 14 with short edges define two narrow side sections 17, 18 with long edges. Two wide plates 11, 12 with long edges are fastened together by means of an elongated bridge 19, also called an elongated rib, extending from one of the narrow plates 13 with short edges to the other narrow plate 14 with short edges in a zigzag fashion. The zigzag line here is presented in the form of a wavy line with a trapezoidal waveform. The envelope waveform corresponds to narrow side sections 17, 18 with long edges. Thus, in the example of a trapezoidal waveform, the upper and lower lines of the trapezoid are located at the same level with two narrow side sections with long edges. This means that the upper and lower elongated side sections of the elongated beam-shaped rod are embodied by the upper and lower lines of a rectangle or trapezoid.

As illustrated in the figures, the bar-shaped rod 2 can be made very thin in the form of a hollow wall structure, which will save material, weight and space. Due to the zigzag jumper 9 or rib in the space between two wide plates with long edges, a very rigid and stable construction is achieved. The jumper or rib 9 is used to achieve high bending resistance in a bar-shaped rod with a small thickness. The bar-shaped bar 2, which is shown here, does not have to have any additional profile part in order to achieve mechanical strength and high bending resistance.

As can be seen in FIG. 2, the distribution unit 1 may have at least one third support 31 located between the first and second supports 5, 6 to prevent the mounting plate 2 from being deflected. FIG. 2 there are two third supports 31. This embodiment is particularly useful in applications with a very wide distribution unit, where the mounting plate must be very long in order to prevent the middle part of the mounting plate from tilting down towards the mounting plate 7.

LIST OF REFERENCE POSITIONS

1 distribution block

2 mounting plate

2 'mounting plate

3 module

4 insulating casing

5 first support

5 'first support

6 second support

6 'second support

7 supporting base

8 connecting part

9 connecting part

10 latch

11 wide plate with long edges

12 wide plate with long edges

13 narrow plate with short edges

14 narrow plate with short edges

15 long line

16 narrow line

17 narrow side section with long edges

18 narrow side section with long edges

19 elongated jumper

20 protruding rod

21 slit

22 blocking element

23 rod

24 one of the inner side walls

25 blocking element

26 notch

27 push element

28 other side wall

29 other side wall

30 other side wall

31 third pillar

32 t-rail

33 mcb

34 upper edge

35 mounting part

36 additional rod

Claims (8)

1. A distribution unit (1) for an electrical installation comprising a terminal block layout, in particular for connecting protective earth wires and neutral wires (PE / N terminal), wherein the terminal block layout has a mounting strip (2) and modules (3), which can be mounted on the mounting plate (2) one after another in a row, and the modules (3) have an insulating body (4), each of the cases (4) and the mounting plate (2) have devices designed to insert modules ( 3) in the mounting plate (2) transversely in relation to the longitudinal direction of the mounting plate (2), characterized in that the mounting plate (2) is made in the form of an elongated beam-shaped rod, which has two rectangular wide plates (11, 12) with long faces that are connected by two rectangular narrow plates (13, 14 ) on short edges, the long edges (15) of wide plates (11, 12) with long edges and the narrow edges (16) of narrow plates (13, 12) with short edges define two narrow side sections (17, 18) with long edges and two wide plates (11, 12) with long edges slivers together by an elongated bridge (19) extending from one of the narrow plates (13) with short narrow faces to the other plate (14) with short edges in a zigzag manner. 2. The distribution unit (1) according to claim 1, characterized in that the distribution unit (1) has a first and second support (5, 6) for the mounting strip (2) located at a distance from one another on the supporting base (7) moreover, the mounting plate (2) is attached to the supports (5, 6), and the mounting plate (2) has connecting parts (8, 9) formed at their opposite narrow ends, each of the connecting parts (8, 9) has a latch ( 10), which can be released by pressing it towards the free end of the installation strip (2) with a tool or finger and which is shifted to the holding position. 3. The distribution unit (1) according to claim 1, characterized in that the zigzag line is a wavy line. 4. The distribution unit (1) according to claim 2, characterized in that the envelope of the waveform corresponds to narrow side sections (17, 18) with long faces. 5. The distribution unit (1) according to claim 3, characterized in that the mounting strip (2) has protruding rods (20) oriented transversely relative to the longitudinal direction of the mounting strip (2), arranged parallel to each other and made outward from one of its wide rectangular plates (11, 12) with long edges, and that each of the insulating bodies (4) has at least one slit (21) oriented transversely relative to the longitudinal direction of the mounting plate (2), and is configured to forcibly erase nya (20) in the slot (21) when inserting the body (4) of the module into the mounting bracket (2). 6. The distribution unit (1) according to claim 1, characterized in that the connecting part (8) has a blocking element (22) to limit the permissible deviation of the latch (10) in its released position. 7. Distribution unit (1) according to claim 5, characterized in that the supports (5, 6) have the shape of a cube or a truncated pyramid and the connecting parts (8, 9) have the shape of an open box, the latch (10) being a rod ( 23), elastically attached to one of the inner side walls (24) of the open duct, and the rod (23) has a blocking element (25) at its first end, which engages in a recess (26) formed in the support (5, 6), and has a pushing element (27) at its second end, which protrudes above the narrow side sections (17, 18) with long faces, and the blocks uyuschy element (22) is formed as an extension of each of the other three side walls (28, 29, 30) of the open boxes in this direction and ends substantially flush with the pusher member (27). 8. The distribution unit (1) according to claim 1, characterized in that the distribution unit (1) has at least one third support (31) located between the first and second supports (5, 6) to prevent the mounting plate (2) from being deflected. )

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