CZ20023634A3 - Electromechanical remote switch - Google Patents

Abstract

For bistable contact operation, a cam track (15) is incorporated into the surface of the slide (7). The cam follower is a peg (16) engaging the track. The peg is fixed to a rocker (17), mounted to pivot parallel to the upper surface of the slide.

Description

Area, techniques

The present invention relates to an electromechanical remote switch comprising at least one fixed contact and a monostable movable contact which is arranged on and moved by the slider relative to the fixed contact, and a magnetic system with an excitation coil and an armature that is moved by it, which runner is pushed in the direction of the first switching position by the return spring.

BACKGROUND OF THE INVENTION

Such remote switches can be made in two different versions which differ in their switching behavior. On the one hand, monostable remote switches are known which are always held by the return spring in the first switching position and can only assume the second switching position if a sufficiently high voltage is applied to the excitation coil. Such remote switches are also referred to as relays or contactors. Bistable remote switches (also referred to as circuit breakers), on the other hand, can stably maintain two switching positions when their excitation coil is de-energized. Only the changeover from one to the other switching position requires the application of a voltage pulse to the excitation coil. current pulse.

US-PS-4 404 444 discloses a push button switch mechanism comprising a housing on which electrical connections are mounted. The second essential part of the mechanics is a slider which is slidably mounted in the recess of the cover in the direction of its longitudinal axis. On the side surfaces, the slider carries contact plates by means of which electrical connections can be established between the electrical connections. A helical spring that surrounds the runner and rests with its first end and the runner arm as well as its second end on the front of the housing biases the runner away from the housing. On the upper side of the runner there is a shaped heart-shaped slide (cf. FIG. 2) which cooperates with a double L, stop member: the first, extending arm acts as a pivot pin and is received in the opening of the housing. The second, downwardly extending pin fits into the heart-shaped stage (cf. FIG. 4). By means of the interaction of stop members with the heart-shaped backdrop, the runner assumes control of the operation. when shifting in the direction of its longitudinal axis, two stable positions. The switch can be converted to a monostable switch relatively simply, and the stop member is simply removed.

FR-A-2 014 488 discloses an electromagnetic switch with a magnetic coil, an L-type yoke and a parachute anchor rotatably mounted thereon. This anchor moves the switching lever running parallel to the longitudinal axis of the coil and carrying the pin. A runner is arranged parallel to the switching lever and presses the contact springs with its free end. A recess is drawn into the runner in the form of an isosceles triangle that has a step in the area of its hypotenuse. The pin fits into this triangle. On the side of the slider facing the magnetic coil, there is a latch lever which is pivotally connected to the slider, rotatable about an axis. This latch lever has a nose at its free end lying in the region of the triangular recess. On the other side of the runner lies another lever which has an inclined plane in the recess region that projects into the recess. The bistable switching behavior is obtained as follows: when the anchor is tightened, the peg in the step comes to abut and moves the runner down. In this case, the nose of the ratchet lever comes below a fixed point arranged on the flange of the coil body and is rotated by the spring beyond this fixed point due to the spring preload of the lever, thereby hooking the slider in this position. When the anchor falls off, the pin slides along the lower limiting surface of the inclined plane and comes to a final, as shown in Fig. 2, in the upper section of the recess. When the anchor is tightened again, the pin slides along the upper limiting surface of the inclined plane, coming into contact with the latch lever, rotating it and releasing the hook-in nose with a fixed point. The switch cage is thereby released and can move again The pin comes in - as shown on the top.

014 488 - finally to the staircase.

Fig. 3 FR-A1-2

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electromagnetic remote switch of the initially mentioned type in which bistable switching behavior is achieved with as few and as simple to hold components as possible. Furthermore, this bistable remote switch is to be converted particularly easily into a monostable remote switch.

SUMMARY OF THE INVENTION

According to the invention, this is achieved by an electromechanical remote switch comprising at least one fixed contact and a monostably movable contact which is arranged on and moved by the slider relative to the fixed contact, and a magnetic system with an excitation coil and an armature it moves with it. a runner which is pushed by a return spring in the direction of the first switching position, whose bistable actuation of the contacts is incorporated into the backing and a pin is provided, a backing which is mounted on the cradle which is essentially the surface of the runner engaging behind to the surface of the runner having the backdrop.

The backdrop is part of a runner that is no longer modified and thus does not increase the demands on the remote components, as a die casting, the backdrop is very easy to produce switches. Since the runner is made of plastic, it can be adapted by shaping the inner wall of the injection mold used to manufacture the runner. Therefore, the runner's manufacturing process does not negatively affect the tooling required once. Furthermore, the required cradle with the pin fixed thereon is particularly easy to hold and, therefore, easy to manufacture, due to its shape.

the remote switch according to the method to If they have

The bistable switching behavior of the invention can be simple monostable, whereby the cradle is omitted to produce both bistable and monostable remote switches, all can be the same, thus favorably.

components of both product types can be produced with the same tools and therefore particularly cost-effectively

Only when assembling is it possible to find the difference between the remote switches due to the bistable and monostable installation or release of the cradle

Furthermore, it may be necessary to provide an excitation coil with a different number of turns: only short voltage pulses are applied to the current switches, therefore their coils are generated at relatively high power so that the short voltage pulses can generate sufficient magnetic forces to operate the switch. On the other hand, the excitation coils of the relays are performed with less power because they have a longer voltage load.

The excitation coils can be made in the same way with respect to their geometrical dimensions over different numbers of turns, so that all other components of the magnetic system and other remote switch assemblies can be constructed in the same way.

According to a particularly preferred embodiment of the invention, it can be provided that the backdrop is constructed approximately in the shape of a heart.

Frfr frfr frfr frfr frfr frfr frfr frfr frfr frfr frfr frfr frfr frfr

Bistable control of the contacts with such a sliding gate can be particularly reliable.

In a further embodiment of the invention, it can be provided that the link has a tip extending in the direction of displacement of the slider connecting thereto, arranged in a V-way and separated from one another by abutting approximately V-way, straight sections as well as two curvature. they connect to straight sections and openings in the area above the V-shaped stop

In a backdrop made in this way, the pin can slide without any twisting, resulting in high functional reliability of the remote switch.

It has been found to be particularly advantageous to provide a spring biasing the cradle in the direction of one of the two wings of the link, since the travel of the pin within the link can be reliably predetermined.

In this context, it can be provided that the spring is in the form of a helical compression spring which at one end bears against the inner wall of the lower housing of the remote switch housing and at the other end against the cradle.

Such springs are functionally reliable standard components that do not require any production steps of their own, thus using them keeps the remote manufacturing cost of the remote switch according to the invention low. Furthermore, such compression springs can generate sufficient forces for this application.

In a further embodiment of the invention, in this connection it can be provided that pin-shaped shaping on which the ends of the springs are inserted are provided on the cradle and the lower shell.

• ·· ·

- δ?

The lateral deflection of the springs, which may, however, lead to impairment of the proper functioning of the remote switch, is thereby effectively prevented.

Further, it can be provided that the bottom of one of the straight sections of the gate is provided with a ramp that starts in the area connected to the curvature, rises in the tip direction and ends with an edge that extends along the V axis of the abutment.

As a result, the S-pin, despite its pre-tensioning, cannot run inside the straight section of the gate provided with this ramp but reaches the second straight section of the gate. As a result, the path of the runner is forced to be predetermined, so that the precise shape of the runner can be adapted to this only possible path of travel, in particular it can be inserted especially without friction or friction. without twisting.

According to a particularly preferred embodiment of the invention, it can be provided that the return spring is in the form of a helical compression spring, which with its first end bears on a part of the housing, preferably an intermediate casing, and whose second end lies on the runner.

Such springs are functionally reliable standard components that do not require any production steps of their own, thereby using them to maintain the low technical manufacturing cost of the remote switch according to the invention. Furthermore, such compression springs can generate sufficient forces for this application.

In this connection, pin-shaped formations can be provided on the slider and cover on which the ends of the springs are inserted.

The lateral deflection of the springs, which may lead to impairment of the proper operation of the remote switch, is thereby effectively prevented.

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · φφ φφ ··

In a further scaffolding of the invention, it can be provided that the cradle has two cylindrical formations which fit into depressions provided in the remote switch housing, the depressions having a slightly larger diameter than the molding.

This type of housing can be manufactured without complications and has particularly low friction, contributing to the trouble-free operation of the remote switch.

According to a preferred embodiment of the invention, the depressions may have a groove-like shape and are incorporated into the faces of the spaced apart intermediate facing plates which are formed on the inner wall of the lower shell and that the spaced apart facing plates are formed on the intermediate shell, The lower shell and the intermediate shell when the intermediate shell is mounted on the lower shell are oriented in the same axis relative to each other.

In the recesses designed in this way, the cradle can be inserted particularly easily, so that the technical complexity required to assemble the remote switch according to the invention can be kept particularly small.

DE-A1-37 07 491 describes a parachute anchor relay. The magnetic system has an anchor, which acts on the linearly actuating driver. These actuating carriers carry movable switching contacts, which are formed in the form of contact plates and cooperate with fixed switching contacts. DE-A1-37 07 491 mentions several times that the two actuating grippers are two separate parts which are arranged separately from one another and which are also displaceably mounted independently of one another.

EP-A2-440 953 deals with a relay against reclosing the relay. It shows only the relay armature as controlled by it, in the form of a linear slider, (contact) ·· · * ·· · * · 4 «· ····

• * * · Actuator. At the end of the actuator remote from the armature, two contact springs are provided, which carry the contacts. As a result, the movable contacts of the two switching paths are arranged on a single, both switching paths common to the runner, but this runner with one removable arm is not shown.

In the embodiment of Figs. 3 and 4, contact springs could be held in cages. Precise testimony is not to be made about this, as the verbal description does not pay attention to this in detail, but the bearing of the contact springs is referred to as an intermediate member only. 2, it is nevertheless recognized that the side walls of these intermediate members extend straight.

JP-A-59 025 135 discloses a multi-pole relay whose anchor acts via a rocker lever on a runner or a cross-member. it can move it linearly. This runner has a total of four punctures in which are placed rectangular contact plates, which at their two free ends carry the contact members. The contact plate is pushed against the front front side of the breakdown by a helical compression spring, also located inside the breakdown. The lateral delimiting surfaces of this breakdown extend parallel to the slider sliding direction.

It is a further object of the present invention to provide an electromechanical remote switch of a further closely defined type, which remote switch is characterized by particularly simple assembly. Said remote switch should furthermore be able to switch particularly easily from its basic design comprising two simultaneously actuated switch paths to a remote switch having only one switch path.

Said remote switch has two switching paths, each of which comprises at least one fixed contact and one movable contact thereto, the movable contacts being movable, wherein the movable contacts 4 < 3 &gt;. ··· • · ·

9 4 · ·

44 ** ·· «· 9 9

4 4

4 4 4

44 of the two switching paths are arranged on a common runner and can thus be moved against fixed contacts. The remote switch further has a magnetic system with an excitation coil and an armature moved thereto, which is coupled to a slider which is pushed by a return spring into the direction of the first switching position, the slider having two arms separated by a slot and each arm the at least one movable contact member of just one switching path.

In order to solve this further problem, it is provided according to the invention that at least one section of the first arm, preferably the entire first arm, is provided as a separate component which is detachable from the remaining runner.

This makes it possible, when assembling the remote switch, to first insert the runners without the first arm into the lower casing of the housing and subsequently to install an intermediate sheath which separates the two switching paths and which runs through the slot between the two arms. Subsequently, the first arm can be fastened to the remaining runner. This can be omitted. laboriously introducing the intermediate skin into the slot between the arms, as is necessary in the hitherto known one-piece embodiment of the first arm with the remaining runner.

Furthermore, by simply omitting the first arm and the electrically conductive components of the switching path associated with the first arm, a single-pole switch having only one switching path can be realized. If. In order to produce both two-pole and single-pole remote switches, all components, in particular the housing, the magnetic system and the runner of both product types, can be produced in the same way, i.e. with the same tools and therefore particularly cost-effectively. Only when assembling is it possible to detect the difference between single-pole and two-pole remote switches due to the installation of the first arm and the electrical components of the first switching path.

• · · ισ:

· · · · · · · · · · · · · · · · · · · · · · · · ·

In a further embodiment of the invention, it may be provided that a dovetail groove is incorporated into the first leg, as a separate leg from the remaining runner, with which the first leg is fitted onto the respective guide formed on the remaining runner.

As a result, the first arm can be fastened to the remaining slider in a particularly simple and reliable manner without any auxiliary materials, such as adhesives.

Another object of the present invention is to provide an electromechanical remote switch of another closely defined type in which the movable contact / contacts are particularly reliably lifted, especially when they are slightly welded to the fixed contacts.

Said remote switch has at least one fixed contact and one movable contact cooperating therewith, which is arranged on the slider and is thereby movable against the fixed contact and the magnetic system with the excitation coil and the armature moved therefrom connected to the slider, which slider is pushed by the return spring in the direction of the first switching position, the slider having a cage formed by two side walls extending in the direction of displacement of the slider, as well as a cover plate connecting them and holding at least one movable contact; one movable contact on an approximately rectangular plate, which plate is fixed between the side walls of the cage and is pressed against one of the cover plates by a compression spring arranged inside the cage.

According to the invention, it is provided that the inner surfaces of the side walls of the cage extend parallel to each other and inclined by an acute angle to the sliding direction of the runner.

As the runner moves to raise the moving r:: · · · · · · · · · · · · ·

contact by fixed contact. assigned to it, the inner surfaces of the side walls of the cage first slide along the plate carrying the movable contact and slide this normally in the direction of travel of the slider. In this case, the movable contact is moved laterally relative to the fixed contact. the potential welding of the two contacts tearing apart.

It has been found to be advantageous that the acute angle amount lies in the range between 3 and 5 [deg.], Since a sufficiently wide displacement of the contacts is achieved for the aforementioned tearing of the contact welding. at the same time, however, the fluency of the relative movement between the runner and the plate carrying the movable contacts is not significantly affected.

In a further embodiment of the invention it can be provided. The compression spring is designed as a helical compression spring, which with its one end bears against the plate and its other end against one of the cover plates of the cage.

Such springs are functionally reliable standard components that do not require any production steps of their own, thereby using them to maintain the low technical manufacturing costs of the remote switch according to the invention. Furthermore, forces such as helical compression springs can be generated. sufficient for this use.

In this context, according to a preferred embodiment of the invention, the cages can be designed, arranged on the plate and on one of the cover plates. molding preferably in the manner of a mandrel. on which the ends of the compression springs are inserted.

This effectively prevents lateral deflection of the springs, which may even lead to impairment of the proper functioning of the remote switch.

US-PS-5 260 677 relates to a relay, with the magnetic system shown in FIG. 3 of this patent. In this drawing, the magnetic core as well as the yoke extending parallel thereto, which is referred to herein as a field return plate, is recognized. The parachute anchor is mounted rotatably on the top face of this plate return plate. The field return plate has one-piece lateral spaced posts, which exceed the parachute anchor.

It is a further object of the present invention to provide an electromagnetic remote switch of another closely defined type, in which the magnetic system can exert high forces on the anchor in each position of its anchor.

Said remote switch has at least one fixed contact and one movable contact cooperating therewith, which is arranged on the cage and can be moved against the fixed contact, and a magnetic system with an excitation coil and an anchor moving thereon and connected to the cage which is pushed by the return spring in the direction of the first switching position, wherein a magnetic core is arranged inside the excitation coil, which is in a magnetically well-conductive connection with the yoke extending approximately parallel to the longitudinal axis of the coil, The first front side of the pivot anchored.

In order to solve this problem, it is provided according to the invention that the anchor fastening plates are fixed to the yoke side surfaces, which overlap the yoke end and the anchor section lying there.

Above these anchor fixing plates, a relatively high intensity magnetic flux can be generated independently of the anchor position, whereby high forces can be applied to it independently of the anchor position. This gives us a high functional reliability of the magnetic system and thus of the entire remote switch.

···· ·· ···· and · ····

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described in more detail with reference to the accompanying drawings, in which particularly preferred embodiments are shown. It shows:

1 and 2 show an electromagnetic remote switch according to the invention, comprising two switching paths with the top shell removed at an oblique section, whereby only one movable contact 2 is provided on the switching path and its connection to the rigid busbar 5 is differently reacted;

FIG. 3 shows a preferred embodiment of the electromagnetic remote switch according to the invention, comprising two switching paths, with the upper housing removed at an oblique section, wherein two moving contacts 2 are provided on the switching path;

FIG. 4 shows the magnetic system 8 of the remote switch according to the invention with the slider 7 in an oblique section;

FIG. 5 shows the same as in FIG. 4, with the cradle 17 being additionally shown;

FIG. 6 shows the slider 7 with the cradle 17 in an oblique section;

FIG. 7 shows the same as shown in FIG. 3, wherein the intermediate shell 21 is shown removed from the lower shell 23 and the cradle 17 is omitted;

FIG. 8 shows the same as in FIG. 3, wherein the slider 7 is in its second switching position; and FIG. 9 shows an alternative embodiment of the heart-shaped slide 15 recessed in the slider 7.

• · · · · · · · · · · · · · · · · · · · · · · ·

DETAILED DESCRIPTION OF THE INVENTION

The electromechanical remote switch according to the invention comprises, as is already known such switching devices, at least one switching path. Each switching path has at least one fixed contact 1 and at least one movable contact 2. These two contacts 1, 2 cooperate in such a way as to allow opening and closing of the current circuit connected to them.

As shown in FIG. 1, the fixed contact is fixed to the current busbar 3, which by its end section 3 opens into a connection terminal known in the art, which is not shown in the accompanying drawings. The movable contact 2 is connected via a movable conductor wire 4 to another current busbar 5, the end section 5 of which flows into a second, also not shown, terminal block. Instead of the conductor cable 4, a current busbar 59 may also be provided with a smaller thickness and thus resilient (cf. FIG. 2). The movable contacts 2 are just arranged on the slider 7 and are thus moved against the fixed contact i. The current circuit to be switched by the remote switch according to the invention can be connected via this connection terminals. The remote switch according to the invention is designed to be built into a switch cabinet, for which its housing comprises, in a known manner, a lower shell 23 and an upper shell (not shown in the accompanying figures) which can be mounted thereon.

Thus, the remote switch according to the invention is shown as in the accompanying figures, preferably made up of two switch paths simultaneously operable by a single slider 7. In order to have the two switch paths electrically isolated from one another, the cover further has a cover 21. which lies between the upper and lower skins 23.

All details, hereinafter described as inventive, can be used indefinitely in the embodiment of the switching path according to FIG

1 or 2, notwithstanding the fact that they are discussed in another according to the preferred embodiment of the switching path shown in FIG. 3.

The switching path of FIG. 3 has two fixed contacts 1, which are fastened at a small distance to each other and on the rigid current busbar 3, unlike the upper two embodiments. Two movable contacts 2 are provided, which are fastened to the electrically conductive plate 6. , wherein the spacing between these movable contacts 2 corresponds to the spacing of the fixed contacts 7.

The plate 4 is arranged - in the manner described even closer below - on the slide 7, whereby the slide 7 is in operative connection with the two movable contacts 2 and can move against the fixed contacts 1.

A magnetic system 8 is designed to drive the slider 7. To allow the slider 7 to also be manually operated, a control knob 36 is provided at its upper end which projects through the passage in the lower shell 23.

The magnetic system 8 comprises an excitation coil 2 and an armature 10 displaced therefrom. In the exemplary embodiment shown in the accompanying drawings, a magnetic core 11 is provided within the excitation coil 9, which is in magnetically well-conductive connection with the yoke 12 extending approximately parallel to the yoke. the longitudinal axis of the coil. On the front side 61 of this yoke 12, the anchor 10, which is designed as a flat plate, is mounted rotatably in the region of its first front side and is thus designed as a parachute anchor (cf. FIGS. 4, 5). This mounting is realized so that the armature 10 is laid by the edge of its front side on the front side 61 of the yoke. At the yoke 12, a resilient sheet metal strip 62 is provided which extends beyond the end face 61 of the yoke and has a section 63 angled in the direction of the anchor 10 with which it extends beyond the anchor 10. This section 63 acts at the same time as the anchor spring.

• * ·· it

Μ '! A · - that it · · · ^χ -4 to it · · · · · · · • · ···· · • · · · · · · · ···· • · ·· ·· ·· ··

By the region of its second front side, the anchor 10 projects into the recess 11 in the form of a groove of the slider 7 and is connected in this way to the slider 7. The slider 7 is slidable in the sliding direction symbolized by the arrow. moving the anchor 10.

The particularity of this magnetic system 8 is illustrated by the anchor bearing plates 60 which are fastened to the side surfaces of the yoke 12. They are designed so that they protrude from the front side 61 of the yoke 12 as well as the section of the anchor 10 lying in the region of the front side 61. The anchor support can always be provided over these sheets 60, especially also when the anchor 10 is in its position shown in FIG. 4, 5, raised by the magnetic core

11. flow relatively high magnetic flux. As a result, a relatively large magnetic force can be continuously applied to the armature 10. This results in a high functional reliability of the magnetic system 8.

The return spring 20 is further applied to the slider 7, which pushes the slider 7 to the first switching position shown in FIG. 3. This return spring 20 is designed as a helical compression spring, which bears at its first end against a portion of the housing, preferably an intermediate housing 21. which separates the two switching paths and whose other end lies on the slider 7. In order to ensure a stable fit of the return spring 20 on the slider 7 and on the cover (on the intermediate sheath 21), spring 20, provided with pin-shaped formations 22 on which the ends of the return spring 20 are inserted (cf. FIG. 7 for forming form 22, mounted on the housing, i.e. on the intermediate skin 21).

When the excitation coil 9 is stressed, a magnetic force is applied to the armature 10 which is greater than the force generated by the return spring 10 so that the slider 7 can slide against the return spring 20.

···· .- *

It is also within the scope of the present invention and within the protected area of the appended claims to construct the magnetic system structurally differently, for example in such a way that the armature 10 movable by the excitation coil 9 is formed as a pin displaceably disposed within the coil body of the excitation coil 9 as this, for example, is provided for the impact breakers of the line circuit breakers.

In a remote switch comprising the aforementioned components, at least one, with at least one fixed contact 1, the cooperating contact 2 is monostably movable, since the return spring 20 pushes the slider 7 - and with it at least one movable contact 2 - in the direction of the first switching position.

In order to impart a bistable switching behavior to the remote switch, i.e., a bistable contact control, a slider 15 is incorporated into the surface of the slider 7. This is preferably formed as shown in the attached drawing, approximately in the shape of a heart. The activities of this backdrop approximately heart-shaped will be interpreted to have. other form.

This pin 15 fits a pin 16, which is mounted on the cradle 17. This cradle 17 is rotatably mounted in the remote switch housing, parallel to the surface of the runner having the backdrop.

15 Dec

This bearing is realized by means of a pair of cylindrical shapes 18 on the cradle 17, which fit into the depressions 19 which are formed into the housing. In Figure 5, one of these shapes 18 is discernible. the second one lies on the opposite surface of the cradle 17, which is not visible in FIG. The depressions 54 for receiving the cylindrical formations 18 are approximately larger in size than the forms 18. Thus, the cradle 17 can be slightly rotated even perpendicular to the direction of displacement 14.

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The folds 19 are preferably not formed as fully cylindrical openings relative to one another in the same axis and spaced apart from the thickness of the cradle 17, since the incorporation of the cradle 17 into such openings

7, the folds 19 are groove-shaped. These were difficult. As can be seen in the figure incorporated into the lower shell 23, the depressions 19 preferably have semi-cylindrical bottoms whose diameter is slightly greater than the diameter of the shaping 18.

Two inserts 24 are formed on the inner wall of the lower shell 23, in which recesses 19 are incorporated in the front faces facing the intermediate claddles 19. The spacing between the two inserts 24 corresponds to the thickness of the cradle 17 in the region of their forming 18. The cradle 17 is inserted into the gap between the plates 24, the moldings 18 abutting in the depressions 19.

Spaced apart plates 24 are also formed on the intermediate skin 21. The plates 24, 24 are arranged such that, when the intermediate shell 21 is fitted to the lower shell 23, they extend with respect to each other in the same axis and abut against each other or with only a small distance relative to one another. The depressions 19 of the plates 24 arranged in the lower shell 21. in this case, they are closed by the plates 24 of the intermediate casing 23 and the shaping 18 is closed in the depressions 19.

The heart shaped slide 15 preferably has the asymmetric shape shown in Figures 1-8. It comprises a tip 24 extending in the direction of displacement 14 of the slider 7 as well as straight sections 25, 29 which are arranged connecting to the tip 24 (cf. FIG. 6). The straight sections 25, 29 are arranged in a V-manner with respect to each other and are separated by abutments 27 approximately in the V-manner. Each of these straight sections 25, 29 is connected with a curvature 26, 28 which into each other in the region above the V-shaped abutment 27

19 »·

0000

0 00 ·

The heart-shaped cradle 15, cradle 17, forms the ratchets as follows:

and a device pin 16 arranged on which it operates

In the state of the remote switch shown in Figures 3, 5 and 6, the pin 16 is located at the tip 24 of the heart-shaped slide 15. The switching path of the remote switch, recognizable in Fig. 3, is switched off because the movable contacts 2 are raised from the fixed contacts 1.

If the excitation coil 9 is stressed in this situation, the slider 7 moves downwards (the direction data refer to the state of the remote switch shown in FIG. 3). During this movement, the pin 16 extends first of the tip 24 extending in the direction of displacement 14, and in turn the right straight section 25 of the gate 15. The curvature 26 connecting to this straight section 25 guides the pin 16 through the abutment 27 approximately 6, which is schematically represented by a continuous line in FIG. During this course of the pin 16, the cradle 15 firstly rotates the cradle slightly clockwise (until the pin 16 has curved 26) and then counterclockwise.

If the excitation coil 9 is de-energized, the return spring 20 can push the slider 7 up. The bearing 27 approximately in the manner of V is displaced in the direction of the pin 15 until it rests on the bearing 27 (compare the dotted position of the pin 15). Thus, the slider 7 can no longer return to the position shown in FIG. 8, in which the movable contacts 2 of the switching path, as shown in FIGS. 3, 8, are still on fixed contacts and the switching path is thereby closed. This second switching position is thus a switching position that holds (is stable) even in the potential-free state of the excitation coil

9.

«« <<<<· · · ·

• · · · · · · · · · 4 ·· ·· ··

The movement of the slider 7 back to the switching position shown in FIG. 3 can be effected by means of a further voltage pulse applied to the excitation coil 9: the slider 7 moves again with such another voltage pulse, thereby moving the pin 16 into the curvature 28 of the left wing. 15 in the shape of a heart (cf. dotted representation of pin 16 in FIG. 6). After the voltage pulse has subsided, the return spring 20 can move the slider 7 upwards, with the pin 16 passing back through the left straight section 29 into the tip 24 of the gate 15. The slider 7 is left again by the slider 7. 3, in which the switching path visible in FIG. 3 is open.

The remote switch according to the invention can also be operated manually, unlike the previous embodiments, for which the slider 7, as already explained above, is provided with a control knob 36 protruding through an opening in the lower housing 23. The latch mechanism formed from the pin 16 and the slide 15, but the same way when you manually control the runner.

In order that the pin 16 always takes the above-mentioned counter-clockwise path through the gate 15, the following two measures are proposed: first there is a spring 30 that biases the cradle 17 in the direction of the left wing 15. and the appended claims, it is to be understood that the whole of the straight section 25, respectively. 29 and the curves 26 or 26 connected thereto. The bias of the cradle 17 in the direction of the left wing of the gate is to be understood as an example, the same value would be preloaded in the cradle 17 in the direction of the right wing of the gate, and naturally the gate 15 would have to mirror.

This spring 30 is in the preferred embodiment of the accompanying figures formed as a helical compression spring which bears on one end against the inner wall of the lower shell 23 and 21.

The other end of the cradle 17. In order to fix the spring 30 in a stable manner, not only on the cradle 17, but also on the lower shell 23, can be formed in the form of pins 37 onto which the ends of the spring 30 are inserted.

The force exerted by this spring 30 on the cradle 17 ensures that the pin 16 is still pushed in the direction of the left wing of the gate 15 and thereby assumes the position shown by the continuous, dashed and dotted lines.

It could be sufficient without this spring 30 if its function (pushing the cradle 17 in the direction of the left wing of the gate 15) is achieved differently. This can be achieved, for example, by arranging the cradle 17 inclined slightly obliquely in the direction of the left wing of the gate, whereby the end of the cradle 17 provided with the pin 16 is pushed by gravity in the direction of the left wing of the gate.

In order to prevent the pin 16 from entering the left straight section 29 after leaving the tip 24, the bottom of the straight section 29 is provided with a ramp 31 which starts in the region joining the curvature 28 and grows in the direction of the tip 24. 33, which extends in the same axis with the edge 32 of the V-shaped abutment 27, lying in the region of the straight section

25. The end on the heel side of the pin 16 slides when leaving the tip 24 along this edge 33 and can thereby enter not into the left straight section 29, but must engage V-shaped 27 along the edge 32 in the manner V.

When the cradle 17 is biased in the direction of the right wing of the gate, said ramp 31 must also be arranged in the right straight section 25 of the gate 15.

An alternative, also conceivable constructional design of the heart-shaped slide 15 is to produce this completely symmetrically, i.e. with identical left and right wings

Φ φ · · · · · φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ (((((((((((((((((((((((((((( The pin 16 here comes after leaving the tip 24 to contact the lip 34 of the abutment 27 in a V-shaped manner and then rotates randomly to the right 25 or left straight section 29. After the pin 16 has returned with curvature 26 or 28. When the slider 7 is moved again, the pin 16 comes into contact with this blade 35 and is guided again to the right 26 or left curvature 28, depending on chance. in both cases, the pin 16 finally returns to the tip 24.

From the explanation of the function of the slide 15 it becomes clear that it may also have another form deviating from the shape of the heart if, even in this form, the pin 16 is stably mounted at two spaced apart latching points and the slide 15 can move the pin 16 without friction. way between the two latching points. For example, when supporting the embodiment of FIG. 9, it would be conceivable to provide a half-heart gate 15, thus comprising only one of the two wings.

According to another conceivable embodiment, the shape of this wing could deviate from the shape of half the heart and could be formed approximately in the form of half the ellipse.

Thus, the invention is not limited to the embodiment of the approximately 15 heart-shaped rocker shown in the figures.

The remote switch according to the invention can be designed to include any number of switching paths, with only one remote switch comprising two switching paths shown in the attached figures. In Fig. 1-3, there is shown just one switching path which is arranged in the region between the intermediate shell 21 and the upper housing of the remote switch housing. The second switching path lies between the intermediate shell 21 and the lower shell 23 and is designed in the same way as the first switching circuit according to the design principle. · 9 9 ·

the track shown in Fig. 1-3.

It can be provided that the second switching path is designed with a different switching function than the first switching path. It is to be understood that when the first switching path has a switching function (the switching path is open in the first switching position shown in FIGS. 1-3 and the second switching position shown in FIG. The track is designed with an opening function so that it is closed in the first switching position (Figs. 1-3) and open in the second switching position (Fig. 8).

However, the functions of the two switching paths are optional or optional. can be freely combined with each other. Thus, for example, the two switching paths can be designed as a make contact or both as a break contact or a contact. just one or both switching paths made as a changeover auxiliary contact.

The magnetic system 8 and the slider 7 are adapted to the two switching paths, i.e. to the two switching paths. the movable contacts 2 of the two switching paths are arranged on a single, common slider Z and are thereby moved against the fixed contacts 1.

As best shown in FIG. 4, the slider 7 has two legs 41, 42 separated by a slot in the region of the movable contacts 2.

40. Movable contact members 2 of the remote switch 2 are arranged on both of these legs 41, 42, each arm 41, 42 carrying a single movable contact member 2 or both movable contact members 2 of just one switching path. In a fully assembled remote switch housing, the wall 45 of the intermediate housing 21 lies in the region of the slot 40. Each of the two legs 41, 42 thus protrudes into its associated switching path and is separated from the other switching path by the wall 45 of the intermediate housing 21.

«··· • ···· · · ·

- 34 i9 · ··· 4949 * 4

4 4

4 4 4 4

44

A peculiarity of the slider 7 provided in the remote switch according to the invention is that the entire first arm 41 is embodied as a part separate from the remaining slider 7, but can be fixed to the remaining slider 7. This fastening can in principle be realized in any desired manner, for example, the arm 41 could be glued to the remaining slider 7.

According to a preferred embodiment shown in the accompanying drawings, there is provided a releasable, positive fit of the arm 41 to the slider 7:

In the region of the remaining slider 7, in which the arm 41 is to be fixed, a guide 44 is formed which, with respect to its cross-section, coincides with the cross-section of the groove 43 and is made slightly smaller than this. The arm 41 is mounted on the t-o-guide 44 and is thereby positively secured to the remaining slider 7.

The cross-sectional shape of the groove 43 and the guide 44 may be chosen as desired and may, for example, be in the shape of a hammer shown in the figures. Alternatively, the groove 43 and the guide 44 may have a trapezoidal cross-section, the longer of the parallel side edges of the trapezoid running parallel to one another in the region of the bottom of the groove < has corresponding molding surfaces 44 to achieve a positive fit of the arm 41 and the remaining slider 7.

As can be seen from FIG. 7, when assembling the remote switch, the slider 7 can first be put together in the lower shell 23, then the intermediate sheath 21 can be fitted, and then the arm 41 can be slid onto the remaining slider 7. 42 of the runner to the areas between the lower shell 23 and the intermediate shell 21, respectively. between the upper shell and the intermediate shell 21.

In order to achieve this simple mounting of the slider 7 in the remote switch housing. it can be provided differently from the present embodiment that not the entire leg 41, but only the leg portion 41, namely the lower portion carrying the movable contact 2, is formed as a part separate from the remaining slider 7. The second leg portion 41 is formed from It is to be remembered that the second one-piece runner 7 with the runner 7 in the first switching position (FIG. 3) ends above wall 45 so that when the remote switch is assembled together, the wall 45 of the intermediate sheath 21 did not have to slip into the slot 40 between the two legs 41. Another aspect of the invention resides in the design of the movable contact holder 2 on the slider 7. As shown in FIG. cage 50. Since the remote switch shown in the figures has two switching paths whose movable contacts

3 - as described above, they are arranged on two legs 41, 42 - each of these legs 41 42 being provided with such a cage 50.

This cage 50 has two side walls 51, 52 extending in the sliding direction 14 of the slider 2, as well as cover plates 53, 54 connecting them. One movable contact 2 (cf. FIGS. 1, 2) or FIG. two movable contacts 2 (cf. FIG. 3) are respectively. they are arranged on an approximately rectangular plate 6, which plate 6 is mounted between the side walls 51, 52 of the cage 50. Inside the cage 50 is a compression spring 55 that pushes the plate 6 against one of the cover surfaces 53, 54.

Against which of the two cover surfaces 53, 54 the plate 6 is pressed depends on which switching function (switch contact or break contact) has the respective switch path

meet. If the switching path as shown in FIG. 3 is made as a switching contact and the fixed contacts X are arranged below the lower covering surface 54, the plate 6 is pushed against the lower covering surface 54. As the slider 7 moves to close this switching path As a result of this contact, when the slider 7 continues to move, the plate 6 can no longer move, but the compression spring 55 is compressed. The contact pressure, which pushes the movable contacts 2 against the fixed contacts X , the compression spring 55 increases.

When the switching path is made as an opening contact, the fixed contacts X lie above the upper cover surface 53 of the cage 50, whereby the plate 6 is pressed against this upper cover surface 53 (cf. the first arm 41, lying to the left in FIG. 6).

The compression spring 55 is preferably designed as a helical compression spring, which with its one end bears on the plate 6 and its other end on one of the cover plates 53. 54 of the cage 50. Alternatively, the compression spring 55 could, for example, be a leaf spring.

In the construction of the compression spring 55 as a helical compression spring, according to a preferred embodiment of the remote switch shown in the figures, the moldings 55 are arranged on the plates 6 and on one of the cover plates 53, 54 of the cage 50 onto which the ends of the compression spring 55 are mounted. The moldings 56 preferably have a mandrel-shaped form, but may also be formed as cylindrical pins.

The inner surfaces 57, 58 of the side walls 51, 52 of the cage extend parallel to each other and inclined by an acute angle α to the sliding direction 14 of the slider 7. The acute angle α is preferably between 3 and 5 °.

Then, as mentioned above, when the movable contacts 2 lie on their fixed fixed contacts X, they lift the plates 6 carrying the movable contacts 2 away from the cover plate 53, 54 of the cage 50 on which the abutment can occur and the compression springs. 55 respectively.

During the displacement of the cage 7, which leads to the lifting of the movable contacts 2 from their fixed contacts X, the movable contacts 2 do not first lift from the fixed contacts X: the plate 6 and the movable contacts 2 tend to push away from the compression spring 55 against the fixed contacts X, the compression spring 55 being released as the shank 7 continues to move. Only when one of the cover plates 53, 54 of the cage 50 abuts the plate 6, it moves and the movable contacts 2 are lifted from the fixed contacts χ.

During this elevation of the existing movement of the cage 50 relative to the plate 6, the inner surfaces 57, 58 of the side walls 51, 52 of the cage slide along the plates 6. Due to the inclination of the inner surfaces 57, 58 relative to the sliding direction 14 to the direction of translation 14. The movable contacts 2 are thus displaced parallel to the surfaces on which they lie on the fixed contacts χ. In this lateral direction, perpendicular to the displacement direction 14, respectively. A slight movement between the contacts X, 2 is torn due to the lifting movement of the relative movement of the movable contacts 2 in relation to the fixed contacts X.

When shifting the beige 7, which leads to the contacting of the movable contacts 2 on the fixed contacts X it first, the movable contacts 2 first urge the fixed contacts X and as the shifting of the beige 7 continues, the compression spring 55 is compressed. Also, during this compression, the inner surfaces 57, 58 slide along the plates 6. causing the movable contacts 2 to be displaced perpendicular to the direction of displacement 14. Because the movable contacts 2

The pMtoms are already in contact with the fixed contacts, the movable contacts 2 rub against the fixed contacts 1, which results in the cleaning of the contact surfaces of the two contacts 1, 2. This contributes to achieving low contact resistance or keeping this low resistance for using the remote switch.

Claims (18)

PATENT CLAIMS An electromechanical remote switch comprising at least one fixed contact (1) and a co-acting monostably movable contact (2), which is arranged on and moved by the slider (7) relative to the fixed contact (2), and a magnetic system (8) by means of a coil (9) and an anchor (10), (7) moved by it, by which the slider (7) is pushed in the direction of the first switching position, characterized in that a backdrive (7) 15) and is provided behind a slider (15) which is mounted on a pivotably mounted parallel to the surface is connected to a spring slider (20) which restores how much (16) engaging a cradle (17) which is a slider having a slider (15) 2. Electromechanical characterized approximately in the shape of a heart. a remote switch according to claim 1, characterized in that the gate (15) is formed Electromechanical characterized (24) extending in a direction (14) connecting a V-type remote switch according to claim 2, characterized in that the slide (15) has a sliding tip of the slider (7) disposed thereon and . k approximately in the manner V, the straight sections (25, 29) separated from each other by the abutment (27) as well as two curves (26, 28) which connect to the straight sections (25, 29) and flow into each other in the region above the abutment (27) V-shaped Electromechanical remote switch according to claim 2 or 3, characterized by a spring (30) biasing the cradle (17) in the direction of one of the two wings of the gate (15). Electromechanical remote switch according to claim 4, characterized in that the spring (30) is designed as a helical compression spring, which rests at one end against the inner wall of the lower housing (23) of the remote switch housing and at the other end against the cradle (17). ). Electromechanical remote switch according to claim 5, characterized in that pin-shaped formations (37) on which the ends of the springs (30) are inserted are provided on the cradle (17) and the lower housing (23). Electromechanical remote switch according to one of Claims 2 to 6, characterized in that the bottom of one of the straight sections (25 and 29) of the gate (15) is provided with a ramp (31) starting in the area connected to the curvature (26). 28, extends in the direction of the tip (24) and ends with an edge (33) extending in the same axis s, lying in the region of the second straight section (29 and 25), of the V-shaped contact surface (27). . The electromagnetic of the preceding claims, in which the return spring (20) is a spring which, with its preferably intermediate skin (21), (7). a remote switch according to one of the features of the invention, being a helical pusher with a first end resting against a portion of the housing, and with its second end lying on the runner Electromagnetic remote switch according to claim 8, characterized by pins (22) arranged on the slider (7) and on the housing on which the ends of the return springs (20) are inserted. Electromechanical remote switch according to one of the preceding claims, characterized in that the cradle (17) has two cylindrical shapes (18) which fit into the recesses (19) incorporated in the remote switch housing, the recesses (19) having slightly a larger diameter than the molding (18). · · · · · · · · · · · · · · · · · · · · Electromechanical remote switch according to claim 10, characterized in that the depressions (19) are in the form of a groove and are incorporated into the facing panels, the faces of the spaced apart plates (24), which are formed on the inner wall of the lower shell (24). 23) and that there are molded plates (24) spaced apart on the intermediate skin (21), wherein the lower shell and intermediate skin plates (24, 24) are provided with the intermediate skin (21) mounted on the lower shell (23) oriented in the same axis with respect to each other. An electromechanical remote switch with two switching paths, each comprising at least one fixed contact (1) and a movable contact (2) cooperating therewith, the movable contacts (2) of the two switching paths being arranged on a common slider (7) and thereby with them it moves against fixed contacts (1), which remote switch further has a magnetic system (8) with an excitation coil (9) and an armature (10) moved by it, which is connected to the runner which the runner (7) is by return spring (20) pushed in the direction of the first switch position, wherein the runner (7) has two arms (41, 42) separated by a slot (40) in the region of the movable contacts (2) and each arm (41, 42) carries at least one movable a contact member (2) of just one switching path, characterized in that at least one section of the first arm (41), preferably the entire first arm (41), is formed as a part separate from the remaining a runner (7) which is fastened to the remaining runner (7). Electromechanical remote switch according to claim 12, characterized in that a dovetail groove (43) is provided in the first leg (41) separated from the remaining leg (7) by which the first leg (41) can be mounted on the respective leg (41). a guide (44) formed on the remaining runner (7). • flflfl% * 32! • flfl • flfl fl • fl An electromechanical remote switch comprising at least one fixed contact (1) and a co-acting monostable movable contact (2), which is arranged on the slider (7) and moved therewith relative to the fixed contact (1), and a magnetic system (8) with excitation. the coil (9) and its anchor (10), which is connected to the slider (7), by which the slider (7) is pushed in the direction of the first switching position by the return spring (20), at least one movable contact (2) of the cage (50), which consists of two side walls (51, 52) extending in the sliding direction (14) of the slider (7) as well as the cover plates (53, 54) connecting them, and having at least one movable contact (2) arranged on an approximately rectangular plate (5), which plate (6) is mounted between the side walls (51, 52) of the cage (50) and by means of a compression spring (55) arranged inside the cage ( 50) is pressed against the cover plates (53, 54) characterized in that the inner surfaces of the side walls (51, 52) of the cage extend parallel to each other and inclined by an acute angle (s) to the sliding direction (14) of the slider (7). Electromechanical remote switch according to claim 14, characterized in that the magnitude of the angle (s) lies in the range between 3 and 5 ®. Electromagnetic remote switch according to claim 14 or 15, characterized in that the compression spring (55) is in the form of a helical compression spring, which with its one end bears against the plate (6) and with its other end against one of the cover plates (53). , 54) cages (50). Electromechanical remote switch according to claim 16, characterized, preferably in the form of a mandrel, by means of moldings (56) arranged on the plate (6) and on one of the cover plates (53, 54) of the cage (50) on which they are mounted. · · - - - - ▼ * ’» w • - ♦ 33 · ~ · · · 0 0 · 0 0 0 0 0 0 0 0 0 0 0 00 0 0 00 0 00 00 00 00 ends of the compression spring (55). An electromechanical remote switch comprising at least one fixed contact (1) and a movable movable contact (2), which is arranged on and moved by the slider (7) relative to the fixed contact (2), and a magnetic system (8) with excitation. the coil (9) and the armature (10) moved thereto, which is connected to the slider (7), which is pushed by the slider (7) in the direction of the first switching position by the return spring (20). a magnetic core (11) arranged in a magnetically well-conductive connection with the yoke (12) extending approximately parallel to the longitudinal axis of the coil, on the front side (60) of which yoke (12) the anchor (10) is mounted rotatable, characterized in that anchoring support plates (60) are provided on the side surfaces of the yoke (12), which overlap the front side (61) of the yoke (12) and the anchor section (10) lying there.