DE8809513U1 - Electrical switching or control device in slim design, in particular time switch - Google Patents

Description

PI M.OMPHY1K1R PR- RKR- MAT^RIOtiARP »PEItL ·..".. !»atentawwalt OFFICER HEADQUARTERS711ASSES2 72ItTROSSmOENI JIeVkHIHtIt IVMOO Munich File number:

GbmAnm. "Electrical devices - narrow design" Aim.: W.E.G.-Legrand GmbH., 477&ogr; Soest

25 0265 a/2 - DrBi/bp - 14.o7.88 Description - Page 4

W.E.G.-Legrand GmbH. Windmühlenweg 27

477o SOEST

Electrical switching or control device in slim design, in particular time switch

The invention relates to an electronic switching or control device in a narrow design, in particular a timer, with an electrical (electronic) switching device in the output circuit for power consumers and related systems, arranged on the circumference of a rotationally symmetrical carrier with associated pivot bearing and optionally adjustable on the circumference, but otherwise captive and to be actuated by a clockwork-driven shaft and scanning of the circumference of the carrier,

File number:

GbmNote. "Electrical devices - narrow design" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page 5

housing with a lower part and an upper part with flat cuboid-shaped elements and with built-in drive device, switching device, output circuit with connection terminals and program carrier according to the preamble of claim 1.

In particular, the invention relates to a housing of the prescribed type, wherein the lower part and the upper part are arranged opposite one another in the form of flat Shells, of which at least one of the two is equipped with molded side walls and can be combined in a form-fitting manner to form a complete housing by means of a plug-in connection. The switching elements are in the usual industry combination bind with other modules functionally used and their number is equal to the number of selectable time steps for a periodic switching program corresponding to the rotation of the program carrier. Furthermore, in a manner known per se, locking means and stops are correspondingly the operating conditions of the The necessary shift positions of the switching elements are installed.

In the field of electromechanical time switches, which have been indispensable for many years in a wide variety of designs for the time-dependent triggering of switching processes in control technology, a very large number of design principles have been exhausted. Depending on the specific development goal, the relevant program carriers are designed as drums or disks for the storage of the switching elements, with the drive also being used as

Reference number' _no

GbmNote. "Electrical devices - narrow design" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page 6

Motor unit with more or less complex gearbox or electrically switchable speed, each used in conjunction with a specific clutch.

The design is also determined by the desired application and installation requirements, e.g. with a visible time display for the entire time program in a frontal view or just a part of it with a side view of a part of the time program. These aspects are particularly dependent on detailed questions of the ^instruction of the housing and the installation of the individual components.

Since the further developments sought in the special field addressed here can be seen as particularly advanced in the current stage of development of the relevant switchgear for panel installation or surface mounting for the reasons ¹⁵ mentioned above, the further development in question here is based on DE-OS 26 oo 4o9, especially since the design principle there is based on the construction forms within the framework of standardized housings. Due to the complexity of the components of time switches etc. and their principles, further developments must therefore be concentrated on more or less specific details.

In the course of further development, the present invention is therefore based on the task of designing the means for triggering switching processes in control technology in line with the modernization mentioned for staircase light timers, also for time switches or similar switching devices.

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GbmNote. "Electrical devices - narrow design" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page 7

or control devices to improve the space requirements of the modules and components by their appropriate redesign, spatial rearrangement and combination by an even denser packing of the adjustable or selectable switching elements, whereby additional quality requirements in production are met by simplifying the production process.

Furthermore, despite the increase in the number of time stages of the switching program, the priority should continue to be to noticeably reduce the space requirement, while ensuring the highest possible precision. However, the manufacturing tolerances and fitting air gaps should not be set below a certain minimum, so that technical manufacturability is also ensured and production can be carried out economically.

This object is achieved with an object of the preamble of claim 1 in conjunction with the utilization of the features of the characterizing part of claim 1, whereby claim 4 is described for an application of this basic principle of the invention in an independent embodiment. In all cases, the invention provides the progress that adjustment work of certain previous designs is no longer necessary, so that a demand for at least partially automated production, which has become increasingly urgent over time, is met. 3o

Special features of the invention are the subject of the subclaims. Examples of embodiments are in the

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GbmNote. "Electrical devices - narrow design" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page

The following description is explained using the drawing; it shows:

Fig.1: as an overview section from the Illustration of Fig.2a:

a) the program carrier group in the case of sector-by-sector interrupted storage using the pipe bearing combination of the pivot bearing

in the top view together with the gear lever and part of the drive group

b) in section "L-W" divided by the housing

c) in partial reproduction of the section through the ring-shaped program carrier left with axial displacement of the switching elements, right with radial

Displacement of the switching elements

d) front view of the fully equipped ring-shaped program carrier with axially movable switching elements and the externally visible time scale (right) and partial section

(Left)

Fig. 2: in further illustrations from Fig.2:

a) in the top view of the opened

Housing with some components installed on the lower part: program carrier, drive group with drive wheel of the clockwork drive group (top) and connection

35 group (below)

b) Front view from outside

c) Program carrier in section (upper half) and in front view on scale and

-Sprocket (lower half)

d) Bottom view (connection terminals)

Fig.3: lower part of the housing designed as a shell with a rectangular, rectangular shape

Elements and double tube partial shell for

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Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page 9

Note: W.E.G.-Legranu u.nbH., 4/7o Soest Description - Page 11

the pipe bearing combination of a ring-shaped program carrier

a) in plan view

b) in the front view

c) in section "L-W" from the front

d) in the lateral section "A-F" from the drive direction

c) in the lateral section "G-K" from the terminal direction

f) from below
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Fig.4: Upper part of the

Housing with flat cuboid-shaped spatial elements and the counter shell for the pipe bearing combination of the ring-shaped program carrier

a) in plan view

b) in section "I-U"

c) front view of the window

d) view from below of the block of bricks

e) in section "AH"
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Fig.5: Top view of the assembled switch block with terminal set

In Fig.1, sector-by-sector cutouts for the heads 1 of the switching elements, the ring body 2 and the adapter 3 of the program carrier sub-group 2o mounted on the tube combination 11 can be seen more clearly, the double tube partial shell 4 of which is visible, which is attached in one piece or at least firmly to the base plate j> of the sub-group £ of the housing, i.e. is integrally attached to££ ^r rr&trade;.

The fragmentary visible program carrier subgroup 2o is on the double pipe shell 4 as a pipe support com-

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GbmArcn. "Electrical equipment-helical construction" 25 o265 a/2 - DrBi/bp - 14.o7.88 Ann.: W.E.G.-Wgrand GmbH., 477o Soest Description - Page 1o

combination, one part of this pivot bearing containing a semicircular piece with the end pieces 7, 8 of the pipe shell section and being supplemented by the abutment pin 9 as a counter bearing so that the ring-shaped program carrier group is completely supported. The double pipe shell section 4 has at one point in the embodiment in the middle between the ends of the pipe shell section a tubular guide bush 1o formed in the inner wall 52 of the double pipe shell section for centering the counter shell by means of a half shell 29 (in Fig.4) receiving the tubular guide bush 1o, which is formed on the base plate of the upper part 195 , which is also not visible.

Between the segment-like sections 1, 2 and 3

from the program carrier combination, the switching elements 12 and the guide grooves 13 of the molded bodies 14 for axial displacement of the switching elements 12 are visible in the left part V^ , while in the right part between the segmental tive cutouts, e.g. 1 the switching elements 15 and the Guide grooves 16 of the shaped bodies 17 for radial displacement of the switching elements 15 are visible. Next to the end piece 8 of the pipe shell section, the empty surface 18 of the base plate 5 without any formations can be seen, which extends to the opposite opposite end piece 7 extends with the interposition of the Abutment pin 9. The program carrier group 19 has a gear ring on the outer edge 21, via which it is driven from the drive group 2_2 via the end pinion 23. Approximately opposite this point, the circumference of the pro gram carrier and indeed by the projections of the switching elements 12 and 15 by means of the switching lever 25 pivotable about the axis 24 and via an intermediate contact lever 26, hler not shown, which is also not

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shown switch block.

In Fig.Ib, the double-tube shell with the sliding surfaces 51, the outer low support 52 and the high inner bearing surface 53 can be seen in section and together with other moldings (pins, bushings, etc.) shown molded onto the base plate 5 of the lower part 6.

Fig.1c shows two designs of the program carrier,

of which the one (left) for axial displacement of the switching elements 12 is guided in the molded body 62 and the adapter 63, as well as the gear ring 64 and optionally the other design of the program carrier for radial Displacement of the switching element 15 in the molded body 66 can be used with the adapter 67. One of these program carrier subgroups 2o of your choice can be plugged onto the double tube shell part 4, whereby the ring gear 64 is brought into engagement with the end pinion 23.

In Fig.id the program carrier subgroup 2o is shown (same as the example in Fig.1c on the left) with the externally visible time scale 68, the switching elements 12 and the gear ring 64. The program carrier subgroup 2o is on the double tube part shell 4 is put on, whereby the time scale 68 is visible above the cutout 1y1 (in Fig.1b). The flap cover (not shown here) is mounted in the bearing bush 28 (Fig.1a).

In Fig.2a a part of the opened housing is shown with

Lower part 6, fully assembled visible, with drive group 22 on a separate circuit board group, lower board 1o2 and upper board 1o3, whose drive wheel 23 is used.

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GbmAnm. "Electrical equipment-Schntal construction" 25 o265 a/2 -DrBi/bp - 14.o7,88 Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page 12

used output end pinion is in operative engagement with the locking wheel 1o4 and the locking spring 1o5, as well as the gear ring 21 of the program carrier group 19 and is set in rotation depending on the selected time rhythm. The drive group 22 contains, in addition to the gear parts mentioned, a stacked gear 141 made up of several gears which, together with the stator and coil 143, form a group as a compact, completely mountable unit.

The program carrier 19, i.e. more precisely the projections

of its switching elements 12 (see Fig.id) is sensed by the cam 1o6 of the switching lever 25. During the resulting pivoting of the switching lever around the axis of the pivot bearing 1o8 by the protruding heads of the Switching element actuates the opposite end 1o7 via the intermediate lever 133 the movable contact 112 of the switch group 11o of the switch block 111. The program carrier with bearing 19 is therefore a module and is connected to the functionally subsequent module switch block 111 via the shift lever 25 and the intermediate lever 133 are coupled.

The switch block 111 is combined with the contact set 112, 113 and the two terminals 114, 115 to form an independent module. With the manual switch lever 131, which can be set in two or three positions, depending on the design, the switch block 111 can also be set from the outside from timer operation to "permanent ON" and, if necessary, "permanent OFF", whereby the switch lever 2S is permanently decoupled from the

Switching elements are lifted and the switch group 1Io

is blocked in either the "closed" or "open" position.

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GbmAnm. "Electrical devices - narrow design" 25 o265 a/2 - Dr3i/bp - 14.o7.88 Anra.: W.E.G.-Legrand GmbH., 477o Soest Description - Page 13

The switch group 11o is in principle a so-called snap switch, whereby due to the interaction of the intermediate lever 133 and the spring 132, the movable contact lever 112 can be moved to the "open" position when changing from one operating position to the other "closed"

Snapping occurs, as can be seen from Fig.5, where the contacts

112, 113 are closed because the contact lever 112 is 'f- H the axis of the spring 132 has snapped over. Dcbei is

§ _: then the intermediate lever 133 through the opposite end

10 1o7 of the shift lever 25 as a result of the lifting of the cam "t 1o6 of the shift lever 25 or by operating the manual shift lever 131 from the rest position towards the bearing point 134 of the spring 132.

j? 15 In Fig. 2b, with the cover 151 closed, the

Time scale 68 with different positions of the switching elements

... elements 12 in their extent 153 visible; close to the time scale

68 is for operating the operating mode switch - here as a hand switch 131 with two positions "Switch- 2o clock mode" with symbol "clock" and "permanent ON" (symbol "I") -

, ") A recess is provided at the lower end of the scabbard

':* . blocks 111, the terminals 114, 115, 114·, 115» are recessed and protected against electrical contact. 25

In the front view 189 (Fig.3b), above the cutout 191 for the hand switch f31, where the relevant switching element 12 sensed by the cam 106 of the switching lever 25 is visible, a marking arrow 193 is arranged next to it at the same height and directed towards the time scale 68, so that the set

|i Switching time can be read conveniently and clearly

S can.

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File number:

GbmNote. "Electrical devices - narrow design" 25 &ogr;265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page 14

In Fig.2c, the program carrier 19 is shown with time scale 68 and with axially actuated switching elements in the "ON" position; the upper part as a section (61, 64), the lower part as an external view (68, 64, 12). 5

In Fig.2d the bottom view of the timer with the connection terminals 155 is shown.

A snap-in device 92 for clamping the housing or the device onto a support rail is attached in a manner known per se to the angled base plate 91 (Fig. 2a) of the lower part (j).

A circuit board 171 (e.g. for the power supply) is mounted on the base plate 5 in the unoccupied surface areas of the interior of the housing. When the time switch is designed as a synchronous clock, this contains a voltage divider for reducing the mains voltage to the operating voltage of the drive group 22. When the time switch is designed as a quartz-controlled clock with a power reserve, an accumulator 172 is installed on this circuit board 171 - using the area not required on the other parts or assemblies - as an energy store for the power reserve in the event of a lack of or failure of the mains voltage, an electronic generator as a "time base" 174, namely as an independent sub-assembly containing an oscillating quartz, rectifier, clock IC and capacitor. The circuit board 171 has connection points to the terminals 114, 115, 114 1 and 115· at the end closest to the drive group 22 and at the opposite end ^below the switch block 110.

Fig.3a shows on the base plate 5^ of the lower part

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GbnAnm. "Electrical devices - narrow design" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Legrand GmbH., 477o Soest Description - Page 15

6 with partially raised side walls 181, the expediently one-piece moldings of the double-tube shell part 4, various bolts 182, 183 and supports 184, guides 185, 186 for the clamps not used here, edge moldings 187 for limiting the field of view to the time scale 6δ and a molded piece for the snap device 92. The double-tube shell part 4 for storing the program carrier 19 is shown again in full view. It is double-walled and composed of an outer, lower support 52 (cf. Fig.3c, e) and an inner, higher tube wall 53, the latter having a guide bush 1o for centering the counter shell (not shown here) to be placed on the double-tube shell part 4. The two pipe walls 52, 53 of the double pipe shell 4 are in the area outside the semicircle at this point at the end pieces

7 and 8 are broken off and another segment, also of a different height and approximately opposite the guide bushing 1o, is attached as an abutment pin 9 to support the guidance of the double-tube partial shell 4. Finally, combined snap and guide elements with a recess and snap spring 188 are integrally formed on the side walls 181 (see also Fig.3b to f).

Fig.3b shows the front view 189 from the outside with the wall of the control unit and the window cutout 27 for the view of the program carrier, which is not yet mounted here. Instead, in this window cutout 27 you can see the double-walled pipe shells of different heights 52, 53. In the field next to the cutout 191 for the manual switch (operating mode switch), the symbols for switching the operating mode from "timer" to "timer" are shown.

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File number:

GbmAnm. "Electrical devices - narrow design" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E,G.-Legrand GmbH., 477o Soest Description - Page

Operation" ("I") to "permanent ON operation", if applicable or "permanent OFF operation" and the cutout 191 for the operating mode switch 131.

In Fig.4a to e there are various views and sections of the upper part 195. Below in view a) of the cover plate 196, on which, apart from a few molded bolts, guide sets 185 and guide angles 188 for the terminals, above all the molded full ring of the counter shell 197 with counter guide bushing 29, which is molded in half a shell, together with the half-height wall parts 198, only detailed moldings for the double-tube partial shell 4 are included, because this upper part 195 is used only as a type of closure part with storage of the installed individual parts after the lower part ^ has been completely equipped. Only the hinged cover 151 in front of the time scale 68 and the switching elements is mounted on the pin 28.

Fig.4b shows a section of the few pins and bushings in front of the wall part 198; Fig.4c shows an external and front view, Fig.4d a front view and Fig.4e the bottom view .

Claims (1)

Electronic switching or control device in a slim design, in particular timer, with switching elements arranged on the circumference of a rotationally symmetrical carrier with associated pivot bearing and optionally adjustable on the circumference, but inserted captive and driven by a clockwork-driven shaft and with electronic switching elements in the output circuit for power consumers that can be operated by scanning the circumference of the carrier or the switching elements mentioned, St File number: GbmAnm. "Electrical devices - narrow design" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Lügrand GmbH., 477o Soest Claims - Page 2 further comprising a housing comprising a lower part and an upper part, and flat cuboid-shaped spatial elements, where the upper and lower parts form each other- I speaking opposite in the form of flat | bowls, ;;i one of which is equipped with moulded side walls and the other has half-height side walls, and can be combined in a form-fitting, self-retaining manner to form a complete housing by means of a plug-in connection, with built-in modules for drive device, switching device, prepared components for power reserve, output circuit with connection terminals, program carrier and power supply, characterized, that the switching or control device has the following assemblies: program carrier (19), inserted into the pipe support combination (11), in particular in the double-tube shell (4) forming the lower part, with sensing lever (25), hand switch (131) for switching operating modes located on the same axis (1o8), the clockwork drive group (22) with lower and upper plate (1o2, 1o3) and gear (141), ratchet wheel (1o4), locking spring (1oS) and drive wheel (23), device (accumulator 172) for power reserve, switch block (111) with contact set included if ···· · ft · &bgr; · 1 File number: GbmAnm. "Electrical equipment helical construction" 25 o265 a/2 - DrBi/bp - 14.o7.88 Note: W.E.G.-Legrand GmbH., 477o Soest Claims - Page 3 tend movable (112) and fixed contact (113), and terminals (e.g. 114) and power supply group (17t/J with electronics (e.g. time base 174) and these are housed in the housing in a spatially coherent manner with respect to the standard limit dimensions, that the drive group (22) is connected directly via its drive wheel (23) to the program carrier sub-group (2o) in unit with its double tube sub-shell (4) or the housing part - (lower part 6) - and this with the switch block (111) - on its own circuit board - coupled via the sensing switch lever (25), i.e. these modules are structurally combined as prefabricated units, strictly adapted to the product characteristics.