EP2031622A2 - Low voltage safety breaker with park function - Google Patents

Abstract

The switch (100) has a housing (2) connected with a lower part (1) that is provided with a base plane. A control lever (11) includes a cheek part (14) worn out at a free end of the lever in a stop edge (27), which is supported in a parking position (PS) of a breaker at a pivot (24). The pivot is attached at a side wall of a housing. The cheek part includes a recess at wall outer contours. The control lever is hooked in an opening position of the breaker at the pivot. A bend edge (44) lies between the stop edge and the recess.

Description

• einem Unterteil, das eine Basisebene aufweist,
• einem mit dem Unterteil verbundenen Gehäuse,
• und einem kompletten Antrieb, der wenigstens einen im Gehäuse senkrecht zur Basisebene geführten Schaltkäfig zur Aufnahme von Sicherungseinsätzen und wenigstens einen manuell betätigbaren, mit seinen Wangenteilen ins Gehäuse greifenden Schalthebel aufweist.

The invention relates to a strip safety disconnect switch, which consists of the following parts:

• a lower part, which has a base plane,
• a housing connected to the lower part,
• and a complete drive having at least one guided in the housing perpendicular to the base plane switching cage for receiving fuse links and at least one manually operable, engaging with his cheek parts in the housing lever.

Such strip safety disconnect switches have long been known. A typical representative of such constructions is an in DE 42 10 953 C2 shown load bar, the lever engages with its two cheeks having head into the housing, the cheek parts are connected to each other via two pivot. The side walls of the housing each have a perpendicular to the longitudinal direction of the Lastschaltleiste arranged slot and a recess in which the trunnions are guided. The switch-disconnector is equipped with a circuit-breaker whose plate-shaped Locking element can hook with his noses to entprechende recesses on the housing.

A similar structure of a strip switch, with pivot and journal on the shift lever is in DE 10115103 A1 shown. The pivot and bearing pins are also guided in corresponding recesses on the side walls of the housing. A plate-shaped, provided with a toggle locking element engages with its noses in special grooves of the housing.

Out DE 296 22 550 is known a parking breaker with parking function, in which the possibility of parking arises because of fusible links are arranged on lid inserts, which in turn are releasably secured to brackets. The brackets are rotatably mounted on a housing and a linkage in the manner of a parallelogram guide.

Also known are disconnectors, in which the possibility of parking arises because a lid turned over by 180 ° is suspended together with melt inserts in the housing of the circuit breaker.

The object of the invention is to design a novel strip safety disconnect switch, which can be brought into the landfill location in an uncomplicated manner and whose shift lever has a simplified construction.

• die Wangenteile des Schalthebels an ihren freien Enden jeweils in eine Anschlagkante auslaufen, die sich in einer Parkstellung des Leistensicherheitstrennschalters an einem an einer Seitenwand des Gehäuses befestigten Zapfen abstützt,
• die Wangenteile an ihrer Wangenaußenkontur jeweils eine Aussparung aufweisen, mit der sich der Schalthebel in einer geöffneten Stellung des Leistensicherheitstrennschalters an den Zapfen anhakt.

This Augfabe is called by a strip safety disconnect switch of the type mentioned, hereinafter called load switch bar, in which

• the cheek parts of the shift lever at their free ends in each case run out into a stop edge, which in a parking position of the strip safety disconnect switch on a supported on a side wall of the housing pin,
• the cheek parts on their cheek outer contour each have a recess with which the shift lever hooks in an open position of the strip safety disconnect switch on the pin.

Preferably, the switching cage has two mutually parallel and mirror-symmetrically arranged, elongated side walls, which are each provided with a guide pin, wherein on the cheek parts in each case an elongated opening is introduced, in which the guide pin is guided.

On the outer contour of the cheek can be an arc edge of the cheek part, on which the pin can slide during the adjustment of the shift lever. Preferably, the sheet edge between the stop edge and the profiled recess is arranged.

At each cheek part of the shift lever, a bearing pin may be attached, which preferably points inwards and is guided within an opening arranged on the corresponding side wall of the switching cage.

At least one unlocking element can be arranged on the switching cage, which together with at least one stop element located on the switching lever can form a releasable mechanical lock.

At the switching cage, at least one in the assembled state perpendicular to the base plane extending guide bar may be present, which is provided with at least one stop element which abuts when Herauschieben the drive from the housing against a projection arranged on the housing. Preferably, guide elements lying perpendicular to the base plane are arranged on the housing, into which guide webs of the switching cage can be inserted.

Preferably, at least one nose is arranged on the housing, which secures the guide web from falling out of the guide element of the housing.

It is advantageous that the shift lever has at its free end a displaceable grip tab on which a preferably rectangular recess is arranged, which facilitates access to a cover or a window element lying on the cover.

On the cheek parts of the shift lever elongated, in particular S-shaped openings may be introduced, in each of which a guide pin of the switching cage is guided.

The stability of the shift lever can secure at least one transverse to the longitudinal direction of the shift lever bracket, which connects the two cheek parts together.

It is advantageous that the parking functions of the strip safety disconnector can be realized exclusively by the special, advantageous embodiment of the shift lever and by double function of the bearing pin or pins arranged in the housing. The latter form an engagement point for the shift lever and a support in the parked position of the apparatus during the activation and deactivation of the guard safety disconnector.

It is advantageous that the strip safety disconnect switch can be brought into the parking position without having to use additional elements. This shortens the assembly time and contributes to the price reduction of the apparatus. In addition, you can secure the strip safety disconnect switch in its parking position by means of a padlock or the like.

Fig. 1

eine dreiphasig trennbare Lastschaltleiste in der Parkstellung, in einer Seitenansicht,

Fig. 2

Detail der dreiphasig trennbaren Lastschaltleiste, bei dem das Aufsetzen der Anschlagkante an dem Zapfen gezeigt ist,

Fig. 3

Detail der dreiphasig trennbaren Lastschaltleiste in der Parkstellung, das die Blockierart des kompletten Antriebs im kompletten Gehäuse zeigt,

Fig. 4

einen Querschnitt A-A gemäß Fig. 1, in der Parkstellung,

Fig. 5

ein komplettes Gehäuse der Lastschaltleiste gemäß Fig. 1, in einer perspektivischen Ansicht,

Fig. 6

einen Schaltkäfig der dreiphasig trennbaren Lastschaltleiste gemäß Fig. 1, in einer perspektivischen Ansicht,

Fig. 7

eine einphasig trennbare Lastschaltleiste in der Parkstellung, in einer Seitenansicht,

Fig. 8

Detail der Lastschaltleiste gemäß Fig. 7, bei dem das Aufsetzen der Anschlagkante am Zapfen gezeigt ist,

Fig. 9

Detail der Lastschaltleiste gemäß Fig. 7, in einer Parkstellung, die die Blockierart des kompletten Antriebs im kompletten Gehäuse zeigt,

Fig. 10

einen Querschnitt B-B gemäß Fig. 7,

Fig. 11

ein komplettes Gehäuse für die Lastschaltleiste gemäß Fig. 7, in einer perspektivischen Ansicht,

Fig. 12

einen Schaltkäfig für die Lastschaltleiste gemäß Fig. 7, in einer perspektivischen Ansicht,

Fig. 13

einen Schalthebel der Lastschaltleiste gemäß Fig. 1, in einer perspektivischen Ansicht,

Fig. 14

einen Schalthebel der Lastschaltleiste gemäß Fig. 7, in einer perspektivischen Ansicht,

Fig. 15

die Lastschaltleiste gemäß Fig. 1 in geöffneter Stellung,

Fig. 16

ein vergrößertes Detail "G" gemäß Fig. 15,

Fig. 17

die Lastschaltleiste gemäß Fig. 7 in geöffneter Stellung,

Fig. 18

ein vergrößertes Detail "H" gemäß Fig. 17.

The invention is illustrated in two embodiments with reference to the accompanying drawings. The figures show:

Fig. 1

a three-phase disconnectable load switch bar in the parking position, in a side view,

Fig. 2

Detail of the three-phase disconnectable power strip, in which the placement of the stop edge is shown on the pin,

Fig. 3

Detail of the three-phase disconnectable switch-disconnector in parking position, showing the blocking mode of the complete drive in the complete housing.

Fig. 4

a cross section AA according to Fig. 1 in the parking position,

Fig. 5

a complete housing of the load switch bar according to Fig. 1 in a perspective view,

Fig. 6

a switching cage according to the three-phase disconnectable power strip Fig. 1 in a perspective view,

Fig. 7

a single phase disconnectable power strip in the park position, in a side view,

Fig. 8

Detail of the load switch bar according to Fig. 7 in which the placement of the stop edge is shown on the pin,

Fig. 9

Detail of the load switch bar according to Fig. 7 , in a park position, which shows the blocking mode of the complete drive in the complete housing,

Fig. 10

a cross section BB according to Fig. 7 .

Fig. 11

a complete housing for the load switch bar according to Fig. 7 in a perspective view,

Fig. 12

a switch cage for the load switch bar according to Fig. 7 in a perspective view,

Fig. 13

a shift lever of the load switch bar according to Fig. 1 in a perspective view,

Fig. 14

a shift lever of the load switch bar according to Fig. 7 in a perspective view,

Fig. 15

the load switch bar according to Fig. 1 in open position,

Fig. 16

an enlarged detail "G" according to Fig. 15 .

Fig. 17

the load switch bar according to Fig. 7 in open position,

Fig. 18

an enlarged detail "H" according to Fig. 17 ,

A three-phase separable low-voltage strip safety disconnect switch 100 (load switch strip) according to the invention consists of a complete lower part 1, on which a first complete housing 2 is fixed, and a first, on the housing 2 slidably mounted complete drive. 3

The first complete housing 2 (see. Fig. 5 ) basically consists of two mutually parallel and mirror-symmetrical arranged side walls 5, 6 and these connecting transverse walls 46, 47. The side walls 5, 6 each have an upper edge 49 facing the drive 3 and a lower edge 51 facing the lower part 1. At the lower part 1 can be seen a housing 2 facing away from the base plane E (see. Fig. 1 ).

The first complete drive 3 basically consists of a first shift lever 11, which is coupled to a first shift cage 12, of three complete lids 4, which are connected to the switch gear. fig 12 are releasably secured (in Fig. 1 is only a lid 4 shown) and a gripping tab 31 which is slidably disposed on the shift lever 11. The gripping tab 31 has a rectangular recess 58, which facilitates the access to a not shown, in particular pivotable window element on the lid when pushing the gripping tab 31 back.

On an inner side 48 of the two side walls 5, 6 each three perpendicular to the upper edge 49 extending guide elements 7 are arranged, in which the guide webs 8 (see. Fig. 6 ) of the switching cage 12 are insertable. A pushing out of the guide webs 8 of the switching cage 12 of the first complete drive 3 from the guide elements 7 of the first housing 2 is by inwardly facing projections 9 (see. Fig. 5 ), which are arranged on the inside 48 of the side walls 5, 6 of the housing 2. The projection 9, together with a arranged on the guide web 8 of the switching cage 12 stop member 26 is a latching connection.

The interaction of the guide webs 8 with the guide elements 7 allows a parallel movement of the first complete drive 3 relative to the complete housing 2. Falling out of the guide webs 8 from the guide elements 7 of the housing 2 is blocked by lugs 10, which in a minor Distance from projections 9 on the inside 48 of the side walls 5, 6 are.

The in. Fig. 13 Gear lever 11 shown in detail has a head part 50 which has two mutually mirror-symmetrically arranged cheek parts 14, which each pass into an arm 52. The arms 52 are parallel to each other and are connected to each other at its free end 53 via the grip tab 31. In the transition region from the head 50 in the arms 52 is still a reinforcing bracket 29 which connects the two arms 52 in addition. In a closed or parked position, the bracket 29, together with an arranged on the switching cage 12 crossbar 30 allows installing a mechanical lock or a padlock, not shown, and attaching a seal.

The cheek parts 14 each have an approximately arcuate, reaching to the stop element 21 cheek outer contour U1 (see. Fig. 13 ), on which a profiled recess 23 and a curved edge 44 lie. The cheek parts 14 run at their grip tab 31 opposite end 45 each in a subsequent to the sheet edge 44 stop edge 27.

The recesses 23 are approximately in the form of a stepped letter U before (see. Fig. 13 ). The recess 23 merges via a nose 59 in the curved edge 44.

On the cheek parts 14 of the head 50 and elongated, S-shaped openings 15 can be seen, in which the guide pins 13 of the switching cage 12 fit. The collar 16; 20 prevent the falling out of the guide pin 13 from the S-shaped openings 15 and corresponding to the bearing pin 19 from the openings 18 on the tabs 56th

According to Fig. 6 the rod-like switching cage 12 has two equal, elongated, profiled side walls 17, which are connected to each other via the transverse bar 30, three bolts 54 and two transverse walls 55.

Each side wall 17 has a tab 56, a web 57 extending perpendicularly to the longitudinal orientation of the switching cage, the already mentioned guide web 8, a semicircular unlocking element 22 and a guide pin 13 with a head 16 arranged thereon. The protruding from the side wall 17 guide pin 13 ends with the head 16 in the manner of a mushroom. The two tabs 56 each have a through opening 18 (elongated hole), which receive an inwardly assembled bearing pin 19 with a corresponding head 20 in the assembled state.

The unlocking 22 with arranged thereon first stop elements 25 together with two located on the shift lever 11, second stop elements 21 a mechanical lock. When the load switch bar is in its open position OS (cf. Fig. 15 ), then support the second stop elements 21 of the shift lever 11 on the first stop element 25 of the unlocking element 22, whereby further movement of the shift lever 11 is prevented. A removal of the complete drive 3 from the first complete housing 2 is effectively prevented by the located on the cheek parts 14 recesses 23. In the open position OS, the recess 23 hooks on a pin 24 arranged on the housing 2 (cf. Fig. 16 ). During the connection, the pins 24 form an engagement point for the recesses 23 of the cheek parts 14. With a collar 28 located on the pin 24, the recesses 23 are prevented from slipping off the pin 24 (cf. FIGS. 3 and 4 ).

After opening the load switch bar and pressing the arranged on the switching cage 12 unlocking element 22 reach the second stop elements 21 of the shift lever 11 behind the first stop elements 25 of the unlocking 22; the recesses 23 of the cheek parts 14 are unhooked from the pin 24. This allows a movement of the complete drive 3 until it blocks at the projections 9 of the housing 2 by the protrusions 9 being supported on the stop elements 26 arranged on guide webs 8.

In such a position, as well as in a closed position of the load switch bar 100, is achieved by the operation of the shift lever 11 that the stop edges 27 of the cheek parts 14 in contact with the housing 2 arranged on the pin 24 (see. Fig. 2 ) are brought. This condition corresponds to one in Fig. 1 shown parking position PS of the power switch 100th

An adjustment of the shift lever 11 before and after parking position is facilitated by lying on the cheek outer contour U, part circular arc edges 44. The sheet edges 44 are arranged in a radius R1 of the bearing pin 19.

The FIGS. 7 and 17 show a single-phase separable low-voltage strip safety disconnect switch 200 (load switching strip), consisting of a second complete housing 32, the lower part 1 and a second, perpendicular to the base plane E displaceable complete drive 33rd

The same reference numbers, as far as occur in the description of the load switch 100, denote the same parts.

Thus, the second housing 32 (see. Fig. 11 ) of two mutually parallel and mirror-symmetrically arranged Side walls 34, 35 and these connecting transverse walls 46, 47. The side walls 34, 35 each have an upper edge 49 facing the drive 33 and a lower edge 51 facing the lower part 1. At the lower part 1 can be seen facing away from the housing 32 base plane E (see. Fig. 7 ).

The second complete drive 33 basically consists of three switching levers 38, which are each coupled to a second switching cage 37 and three complete lids 4, which are releasably secured to the switching cage 37 (see. Fig. 17 ).

On an inner side 48 of the two side walls 34, 35 each three perpendicular to the upper edge 49 extending guide elements 7 are arranged, in which the guide webs 8 (see. Fig. 12 ) of the switching cage 37 are insertable.

Pulling out the guide webs 8 of the switching cage 37 of the second complete drive 33 from the guide elements 7 of the second housing 32 is by inwardly facing projections 9 (see. Fig. 9 ), which are arranged on the inside 48 of the side walls 34, 35 of the housing 32. The projection 9, together with a arranged on the guide web 8 of the switching cage 37 stop member 26 is a latching connection.

The interaction of the guide webs 8 with the guide elements 7 allows parallel movement of the second complete drive 33 relative to the complete housing 32. Falling out of the guide webs 8 from the guide elements 7 of the housing 32 is blocked by lugs 10, which at a slight distance from projections 9 on the inside 48 of the side walls 34, 35 lie.

The in Fig. 14 Shift lever 38 shown in detail has two mutually parallel and mirror-symmetrically arranged Wang parts 14, which are connected to each other via a bracket 36. The cheek parts 14 each end in first eyelets 42, which are arranged below the bracket 36. In a closed or parked position, the eyelets 42, together with second eyelets 43 located on the cover 4, allow the installation of a mechanical lock or a padlock or attachment of a seal, not shown.

The cheek parts 14 each have a reaching to a stop element 39 cheek outer contour U2 (see. Fig. 14 ), on which the profiled recess 23 and the sheet edge 44 lie. The cheek parts 14 each run out into the stop edge 27 adjoining the curved edge 44. The recesses 23 are also in the form of a stepped letter U before (see. Fig. 4 ). The recess 23 goes over the nose 59 in the sheet edge 44 on.

According to Fig. 12 The switching cage 37 has two identical side walls 61, which are connected to one another via a bolt 54. Each side wall 61 has the tab 56, the guide web 8, an unlocking element 41 and the guide pin 13 with a head 16 arranged thereon. On both lugs 56 are continuous, elongated openings 18 to see, in the assembled state, the inwardly facing bearing pin 19 (FIG. Fig. 14 ) with an associated head 20 record.

The stop elements 39 located on the shift lever 38, together with the stop elements 40 located on the shift cage 37, of a second unlocking element 41 form a lock.

On the cheek parts 14 also elongated, S-shaped openings 15 can be seen, in which the guide pins 13 of the switching cage 37 fit. The collar 16; 20 prevent the falling out of the guide pin 13 from the S-shaped Openings 15 and corresponding to the bearing pin 19 from the openings 18 on the tabs 56th

When the load switch bar 200 is in its open position OS (see. Fig. 17 ), then the stop elements 39 of the shift lever 38 are supported on the stop elements 40 of the unlocking element 41, whereby further movement of the shift lever 38 is prevented.

A removal of the complete drive 33 from the time complete housing 32 is effectively prevented by the located on the cheek parts 14 recesses 23. In the open position OS, the recess 23 hooks on the pin 24 arranged on the housing 32 (cf. Fig. 18 ). During the connection, the pins 24 form an engagement point for the recesses 23 of the cheek parts 14. The collar 28 located on the pin 24 prevents the recesses 23 from slipping out of the pins 24 (cf. FIGS. 9 and 10 ).

After opening the load switch bar 200 and pressing the arranged on the switching cage 37 unlocking 41 reach the stop elements 39 of the shift lever 38 behind the stop elements 40 of the unlocking 41; the recesses 23 of the cheek parts 14 are unhooked from the pin 24. This allows a movement of the entire drive 33 until it blocks on the projections 9 of the housing 32 by the protrusions 9 being supported on the stop elements 26 arranged on guide webs 8.

In such a position, as well as in a closed position of the load switch bar 200, is achieved by the operation of the shift lever 38, that the stop edges 27 of the cheek parts 14 in contact with the housing 32 arranged pin 24 (see. Fig. 8 ) are brought. This condition corresponds to one in Fig. 7 displayed parking position PS of the power strip 200.

An adjustment of the shift lever 38 before and after parking position is facilitated by lying on the cheek outer contour U2, part circular arc edges 44. The sheet edges 44 are each arranged in a radius R2 of the bearing pin 19.

It should be noted that in the mirror-symmetrical structure (in the longitudinal direction of the load switch bar) almost all parts, such. As sidewalls, guide webs, recesses, openings, pins, pins, cheek parts, eyelets, etc. occur in pairs.

Furthermore, at the FIGS. 1 to 18 For clarity of drawing all fuse inserts omitted.

LIST OF REFERENCE NUMBERS

1

lower part

2

casing

3

complete drive

4

complete lid

5

Side wall

6

Side wall

7

guide element

8th

guide web

9

head Start

10

nose

11

gear lever

12

cage

13

spigot

14

string part

15

opening

16

head

17

Sidewall (v. 12)

18

opening

19

pivot

20

head

21

stop element

22

unlocking

23

recess

24

spigot

25

stop element

26

stop element

27

stop edge

28

collar

29

hanger

30

crossbeam

31

grip tab

32

casing

33

complete drive

34

Side wall

35

Side wall

36

Bracket (v. 38)

37

second switching cage

38

gear lever

39

stop element

40

stop element

41

unlocking

42

first eyelet

43

second eyelet

44

Scalloped

45

The End

46, 47

Transverse wall (v. 2)

48

inside

49

top edge

50

Headboard (v. 11)

51

lower edge

52

poor

53

free end

54

bolt

55

partition

56

flap

57

web

58

Recess (v. 31)

59

Nose (from 23)

61

Sidewall (v. 37)

100; 200

Provide security isolation switch

e

base level

OS

(open) position

PS

parking position

R1; R2

radius

U1; U2

Cheek outer contour

Claims (13)

Strip safety disconnect switch (100; 200), consisting of: a lower part (1) having a base plane (E), a housing (2) connected to the lower part (1), - And a complete drive (3; 33), the at least one in the housing (2; 32) perpendicular to the base plane (E) guided switching cage (12; 37) for receiving fuse links and at least one manually operable, with its cheek parts (14) in the housing (2; 32) cross-gear lever (11; 38),
characterized in that - The cheek parts (14) of the shift lever (11, 38) leach at their free ends (45) in each case in a stop edge (27) in a parking position (PS) of the strip safety disconnector on a side wall (5, 6, 34 , 35) of the housing fixed pin (24) is supported, - The cheek parts (14) on their cheek outer contour (U1, U2) each having a recess (23), with which the shift lever in an open position (OS) of the strip safety disconnector on the pin (24) hooks. Strip safety disconnect switch according to claim 1, characterized in that - the switching cage (12, 37) has two mutually parallel and mirror-symmetrically arranged side walls (17, 61) which are each provided with a guide pin (13), - And the cheek parts (14) each have an elongated opening (15) in which the guide pin (13) is guided. Strip safety isolating switch according to claim 1, characterized in that on the outer contour of the cheek (U1, U2) between the stop edge (27) and the recess (23) there is an arc edge (44) against which the pin (24) moves during the adjustment of the shift lever (11 ; 38) slides. Strip safety disconnect switch according to claim 1, characterized in that - The cheek parts (14) of the shift lever (11; 38) each have a bearing pin (19), - And on the side walls (17; 61) of the switching cage (12; 37) each have an opening (18) is incorporated, in which the bearing pin (19) is mounted. Strip safety disconnect switch according to claim 4, characterized in that the opening (18) is a slot. Strip safety isolating switch according to claim 1, characterized in that the switching cage (12; 37) has at least one unlocking element (22; 41) which, together with the second one located on the switching lever (11; Stop elements (21, 39) forms a releasable mechanical lock. Strip safety isolating switch according to claim 1, characterized in that the switching cage (12; 37) at least one, in the assembled state perpendicular to the base plane (E) arranged guide strip (8), which is provided with at least one stop element (26), the Herauschieben the Drive (3; 33) from the housing (2; 32) abuts against a housing arranged on the projection (9). Strip safety disconnect switch according to Claim 1, characterized in that guide elements (7) directed perpendicularly to the base plane (E) are arranged on the housing (2; 32), into which guide webs (8) of the switching cage (12; 37) can be inserted. Strip safety disconnect switch according to claim 8, characterized in that the guide web (8) from falling out of the guide element (7) of the housing (2, 32 is secured by at least one arranged on the housing nose (10). Strip safety disconnect switch according to claim 1, characterized in that on the shift lever (11) a gripping tab (31) is slidably disposed, which has a access to a cover (4) releasing recess (58). Strip safety disconnector according to claim 1, characterized in that the cheek parts (14) of the shift lever (11, 38) each have an elongate opening (15) in which a guide pin (13) of the switching cage (12, 37) is guided. Strip safety disconnect switch according to claim 11, characterized gekennzeichriet that the opening (15) is S-shaped. Strip safety disconnect switch according to claim 1, characterized in that the cheek parts (14) are interconnected via at least one transverse bracket (29; 36).

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