CN1165928C - Power switch - Google Patents

Abstract

The aim of the invention is to provide a power switch which can be used in a universal manner with the lowest possible costs. To this end, the invention provides a power switch which has a switch mechanism (4) that can be actuated, remotely released, or self-released by means of an operating lever (3) attached thereto. Said switch mechanism acts on at least one contact (6). The power switch (1) is divided in a kit-type manner into a base module (5) for accommodating the contact (6) and into a separate add-on module (2) which serves to support at least the operating lever (3). Both modules can be optionally assembled in different relative positions with regard to one another. The inventive power switch which is divided in a kit-type manner can be a remotely controlled supplementary switch for use as an add-on to a circuit-breaker or can be the self-releasing circuit-breaker itself.

Description

Current switch

The present invention relates to electric elements, especially current switch, it comprises a switching mechanism, this switching mechanism not only can be operated by an operating grip that is installed on this switching mechanism, and can be from external trigger or triggering automatically, this switching mechanism acts at least one contact, and wherein this current switch is divided into one in the sub-assembly mode and holds the basic bearing assembly of this contact and the attaching assembly that also supports this operating grip and this switching mechanism at least that is separated.

The current switch of this type for example be used to be installed on a kind of by the extra switch on the known line protection switch of DE3920822C2.This traditional extra switch has a switching mechanism, and this switching mechanism not only can be by line protection switch by coupling unit but also can be by operating with the hinged operating grip of extra switch.This switching mechanism makes an auxiliary signal contact and/or fault-signal contact carry out switch.The position of the switch of this operating grip indication extra switch can be seen it from the outside.

This traditional extra switch laterally is installed in usually on the line protection switch and with it and for example is connected with folder.This extra switch remains on the line protection switch with its housing, and the latter is being horizontally fixed on the shape for hat rail of wall side usually by hook lock.In the case, the installation site of extra switch is definite like this, and the operating grip that promptly is in the upper end position will indicate extra switch to connect.This meets regulations unified in European Union's All Countries.

For example in Germany, be to realize hook lock in the power supply of the switch on the shape for hat rail, and in other country, as France and Italian, this power supply is to realize by the bus that is positioned at shape for hat rail top by the bus that is positioned at below the shape for hat rail.Because extra switch domination terminal separately, they should be positioned under the situation on the shape for hat rail on the side that deviates from bus at hook lock, and therefore the structure type of the extra switch of different usually minute surface symmetry must be provided for different countries.Only could guarantee like this that operating grip is in the upper end position of regulation under the situation that extra switch is connected, although since different buses be installed on the not homonymy that its terminal of country variant will be positioned at the shape for hat rail.This will cause development cost, the increase of inventory cost and management cost.

Therefore, task of the present invention is that the current switch to the above-mentioned type makes improvements like this, promptly reaches the general of it with as far as possible little cost.

According to the present invention, so finish this task, promptly this basic bearing assembly can be assembled on different relative positions selectively with this attaching assembly, wherein this switching mechanism comprises a push rod in the face of the central authorities at the back side of this basic bearing assembly that is arranged on this attaching assembly, this push rod reaches outside the attaching assembly and this push rod is inserted in this basic bearing assembly in the hole on this basic bearing assembly front of this attaching assembly by one when being installed to this attaching assembly on this basic bearing assembly, so that directly act on described at least one contact.

So, establish, can reduce inventory cost and management cost thus for the unified current switch assembly of All Countries.These two assemblies will make up and constitute current switch at the scene in the mode that meets regulations.Releasable current switch according to component type of the present invention not only can be the extra switch that can be installed in from the outside on the line protection switch with dismantling, and is line protection switch itself that can dismantle automatically.

What meet the requirements is, is used for as the extra switch ground of external trigger this current switch being installed to a coupling device on the route protection main switch but be provided with one, and wherein said at least one contact is an auxiliary contact or a fault-signal contact.

In a favourable configuration, the attaching assembly that makes up with basic bearing assembly not only has operating grip but also has whole switching mechanisms.Can realize thus, current switch is divided into basic bearing assembly that only has electrical contact and the attaching assembly with whole mechanical parts.Thisly be divided into being divided in of electric assembly and mechanical component and safeguard the also very big advantage of tool of aspect.Under the situation of mechanical breakdown, only need upgrade mechanical component, thus the job costs that can reduce to move.In addition, for test objective can be changed with the mechanical component that nigh extra switch is installed, so that can do experiment work and do not carry out the dismounting wiring of trouble.Certainly under the situation of electric component faults, only need, and mechanical component still can continue to use its replacing.

Particularly advantageously be; this attaching assembly can be inserted into the groove on the front of this basic bearing assembly from the place ahead, and this basic bearing assembly has a groove at one towards a shape for hat rail that is used to pin this route protection main switch and this basic bearing assembly with the back side on the top side of a bus or bottom side.At first, the attaching assembly should insert in the groove of basic bearing assembly in this wise, and promptly the position of operating grip will meet the regulation of current switch closing position.Position according to bus makes the assembly of combination be installed on the line protection switch with correct position then.As under the situation of extra switch, the assembly of this combination will be installed on the line protection switch by means of jockey at current switch.This assembling mode is particularly advantageous for installation personnel, because this can not cause careless and inadvertent mistake.

Prevent situations such as short circuit in order to install; basic bearing assembly only has the terminal of going up in front and be used for described at least one auxiliary contact or fault-signal contact on half; and this basic bearing assembly can so fit together with this route protection main switch that is locked on this shape for hat rail; be that terminal only is positioned at bus and moves towards on opposite half, can avoid thus forming and the contacting of bus by the lead in the terminal that is inserted in extra switch.

Especially advantageously, two opposed side walls of this attaching assembly housing are aimed at the corresponding sidewall of the housing of this basic bearing assembly under assembled state, and this attaching assembly can be inserted in the groove of this basic bearing assembly on the diverse locations of two 180 degree that stagger.

Favourable configuration in addition relates to the guider on these two assemblies, and these guiders help expedite insertion, and relate to, and the special ease of assembly of attaching assembly ground is divided into: be used for the recessed shell-side face portion of pre-assembly mechanical parts and flat cap part.

By preferred embodiment the present invention is described hereinafter with reference to accompanying drawing.

Fig. 1 summarily represents extra switch sub-assembly in accordance with a preferred embodiment of the present invention, in assembled state;

Fig. 2 summarily is illustrated in the embodiment of the Fig. 1 that is combined into the sub-assembly previous moment that is used for Germany;

Fig. 3 summarily is illustrated in the embodiment that is combined into the Fig. 1 that is used for France and gondola sub-assembly previous moment;

Fig. 4 represents the perspective view of the shell-side face portion of an attaching assembly;

Fig. 5 represents to be used for the perspective view of a cap of the shell-side face portion shown in Fig. 4;

Fig. 6 represent can with the summary end view of a basic module of attaching combination of components in Fig. 4 and 5.

Fig. 1 summarily represents an embodiment of current switch with the form of an extra switch sub-assembly in the assembled state.This extra switch 1 is as auxiliary switch, and it can be installed on the unshowned line protection switch from the side.This auxiliary switch 1 is by two assemblies capable of being combined that separate, and promptly basic bearing assembly 5 and attaching incorporated switch 2 on it is formed.

One is used for manually checking the operating grip 3 that reaches manually connection and disconnect to be hinged on attaching assembly 2.Have a switching mechanism 4 in attaching assembly 2, it can be operated by operating grip 3.This switching mechanism 4 has a plurality of rod members that are hinged in the attaching assembly 2, and they are illustrated among Fig. 1 with being signified.

When auxiliary switch 1 was installed on the line protection switch, switching mechanism 4 will be coupled by the switching mechanism of a unshowned male part and a not shown line protection switch.Therefore the switching mechanism 4 of this auxiliary switch 1 can be dismantled from the outside.Best, this male part is a sheet that is inserted in the direct selling in the line protection switch or curves Z word shape squarely twice.This pin or sheet are by the hole 2 shown in the 2 ' d of the hole shown in Fig. 4 and Fig. 5 " d passes attaching assembly 2 from the side and reaches shell inside.At supply of material state hole 2 ' d and 2 " covering of d sealed piece, sealing can be taken away as required easily, so that the hole is exposed.These holes 2 ' d and 2 " d is arranged on the both sides of attaching assembly 2, and the attaching assembly can be installed on the line protection switch from both sides thus.In addition, auxiliary switch 1 not only can be installed on the line protection switch from both sides, and can at random be stacked by a plurality of other extra switch, they each by pin or sheet coupling.Auxiliary switch 1 according to the present invention can be installed on the switch of such Multiple Combination, and can be installed on the most left and the rightest or the centre position.

Pin or sheet form operation with one or more rod members of the switching mechanism 4 of attaching assembly 2 and cooperate on a Coupling point.The sheet that is used to be coupled has the zigzag shape of twice right-angle bending, thus, not accurately under the situation of aligned position, can realize the accurate coupling of switching mechanism by reversing Z shape sheet at Coupling point.The pin of the bundle of spheres hand of another kind of known coupling by passing operating grip 3 itself realizes, this pin is inserted in the bundle of spheres hand of operating grip of line protection switch.Right latter two operating grip moves together.

Switching mechanism 4 preferably constitutes in this wise, promptly as proposing among the DE3920822C2.The content of this publication file will clearly be hereby expressly incorporated by reference.But the switching mechanism that also can use other any switching mechanism to be substituted among the DE3920822C2 to be proposed, its prerequisite be, it not only can but also can have been discharged by line protection switch by male part by swinging operation handle 3.These two technical functionalitys have primary meaning for switching mechanism 4.

Obviously, switching mechanism 4 mechanically should constitute like this, and promptly it will impact ground as far as possible in following described mode but not little by little act on contact 6, in order to avoid form the electric arc with big heat expansion when switch.In addition, this switching mechanism 4 should constitute like this, and promptly the external force by line protection switch discharges, and operating grip 3 should be operated simultaneously.The disconnection of contact 6 can be mounted personnel or other operating personnel discern from the outside thus.

In an illustrated embodiment, switching mechanism 4 have on Fig. 1 vertical direction approximately in the middle of the place from attaching assembly 2 (Fig. 1 to the right) push rod 4a of stretching backward.This rearward extending push rod 4a acts on contact 6, and is as described below.Also selectively use two or more rearward extending push rods to replace the single push rod 4a shown in the figure.Best minute surface symmetry of these a plurality of push rods or point symmetry ground are provided with.

Refer again to Fig. 1,4 and 5 as can be seen, and attaching assembly 2 has a box-like housing of formation.Its back of the cross section of this shell (below among Fig. 4) section is less than the section of front.The constantly centre portion of symmetry increase of a cross section is arranged between the section of front and back.The shell of attaching assembly 2 has recessed shell-side part 2 ' as shown in Figure 4, that have peripheral boundary wall.But go up pre-assembled switching mechanism 4 and operating grip 3 in shell-side part 2 '.For this reason, its bottom has the whole axle 2 ' c that is used for operating grip 3 that constitutes in recessed shell-side part 2 ', and operating grip 3 will overlap thereon.In addition, structure has a plurality of coupling spindles on the bottom integrated ground of shell-side part 2 ', is used to install the bar of switching mechanism 4 and as the holding point of the pin and the spring of bar backstop.Shell-side part 2 ' also has hole 2 ' d, by it, when extra switch 1 laterally is installed on the line protection switch, will penetrate pin or Z shape sheet.

The shell-side part 2 ' of the attaching assembly 2 shown in Fig. 4 also has the location notch 2 ' f that is located in the peripheral boundary wall.Another location notch be located at the axle 2 ' c in intracardiac.Location notch 2 ' f will with alignment pin 2 " f matches, the latter integrally and projectedly is formed on the tabular cap 2 shown in Fig. 5 " on.Cap 2 " also have a plurality of holes on the opposite that is located at coupling spindle and pin, be used to accept these axles and pin.Cap 2 " also be provided with above-mentioned hole 2 " d, can penetrate pin or Z shape sheet by it.

The pre-assembling shell-side part 2 ' that switching mechanism 4 and operating grip 3 are housed will be by means of alignment pin 2 " f and location notch 2 ' f be by cap 2 " sealed, switching mechanism 4 and operating grip 3 are positioned on its service position.Also can replace alignment pin and location notch, use other device to connect shell spare reliably, as screw, rivet etc.Best, no matter shell-side part 2 still be cap 2 by resin material, make as plastics.

Also can replace and housing 2 is divided into shell-side part and cap part asymmetricly, housing in height is divided into two identical halves branches symmetrically.Also can imagine the housing of one three part, it has the middle plate of can assembling in advance of supporting switching mechanism, its both sides cap closure.Each shell part can be by the device that is fit to, and as lock uint, screw, rivet etc. connect each other reliably.

Be noted that attaching assembly 2 is holding all mechanical parts of auxiliary switch 1.Therefore, the maintenance under the mechanical breakdown situation is just much of that as long as change attaching assembly 2.

Be inserted among the groove 5a of basic bearing assembly 5 front portions from the place ahead (left Fig. 1) according to Fig. 1 attaching assembly 2.Basic bearing assembly 5 receives the electrical contact 6 for the treatment of switch and can be from the electric terminal 51,52,53 that touches previously, and they are connected with contact 6 by current bus bar.Basic bearing assembly mainly has electric parts.Therefore, the maintenance under the electric fault situation is just much of that as long as change basic bearing assembly 5.

After attaching assembly 2 inserts basic bearing assembly 5, the housing of basic bearing assembly 5 with its side from a left side or the right side be installed on the unshowned line protection switch, and pass through folder or similarity piece is connected with it.Line protection switch with hook lock on a shape for hat rail that is installed on the wall.For this reason, its back side 5b has corresponding with the width of a shape for hat rail at least groove, is trapped among on the shape for hat rail so that reach the lower bound wall with going up of groove.Line protection switch and the mounted thereto basic bearing assembly supporting that be used for whole auxiliary switch 1 of hook lock on the shape for hat rail.

In the embodiment shown in Fig. 1 to 3, the terminal that can touch from the place ahead 51,52,53 that is used for contact 6 only is positioned at half place, the i.e. first half among Fig. 1 and Lower Half among Fig. 3 of basic bearing assembly 5.See as knowing from Fig. 2 and 3, have terminal 51,52,53 half one is positioned on the opposition side of power supply buses S on mounted auxiliary switch 1.Introductory part at this specification is mentioned, and power supply buses S will or be positioned at the top of shape for hat rail or be positioned at its below by the different ground of country.For this reason, basic bearing assembly 5 must be installed on the shape for hat rail with two different positions of changing 180 degree mutually.Guarantee thus, terminal 51,52,53 are positioned at half one that deviates from bus S on the basic bearing assembly 5.At upside or the downside towards bus S, basic bearing assembly 5 has a groove 5c, and bus S is positioned in this groove with preventing to be touched.

In illustrated embodiment, have three terminals 51,52,53, wherein on uppermost terminal 51, connected the bus that a quilt curves the L shape, the leaf spring of a bendable at its short pin upper support.Also be connected with the bus of L shape on other two terminals 52 and 53, respectively have the contact of a protrusion at their free end, they will form with leaf spring and electrically contact.The push rod 4a that reaches the attaching assembly 2 in the basic bearing assembly 5 by hole 5d in assembled state is pressed on the leaf spring with its free rear end when operation or release-push mechanism 4, so that resist its intrinsic precompression deflection.In the case, leaf spring leaves a contact and electrically contacts with another contact formation.If switching mechanism 4 resets, leaf spring will turn back to the home position under its intrinsic precompression, and at this moment it leaves another contact and contacts with a former contact.

Though above-mentioned contact is described as change over contact, this contact also can be one and often open or normally closed interlock.And also can use the combination of forming by a plurality of contacts of described type.

Attaching assembly 2 and basic bearing assembly 5 have about same widths, and wherein attaching assembly 2 can insert among the groove 5a of basic bearing assembly 5 with two positions of changing 180 degree each other.Groove 5a is positioned at the centre of basic bearing assembly 5 vertical direction; basic thus bearing assembly 5 can be changed according to the bus position of country variant regulation and be installed in hook lock in 180 degree on the line protection switch of shape for hat rail, and does not cause groove 5a to be positioned on the different vertical position of basic bearing assembly 5.Particularly advantageously be to be basic bearing assembly 5 or attaching assembly 2 all is provided with guider 54,55,2a, 2b.As shown in Figure 4, the shell-side part 2 ' of attaching assembly 2 has the ditch 2a of little cross section, 2b at back (being down among Fig. 4) section that vertical direction (side direction among Fig. 4) goes up the two sides of its opposition.These ditches 2a, 2b can match with the rib 54,55 on two pairs of delimitation walls that are molded over groove 5a.Attaching assembly 2 is led reliably by this ditch/rib combination among the groove 5a that inserts basic bearing assembly 5 from the place ahead the time.

As appreciable from Fig. 5, cap 2 " have on (among Fig. 5 for down) edge thereafter extend through cap 2 " alignment pin 2 of profile " e.This alignment pin 2 " e will form with groove 5a locating slot at bottom 5e shown in Fig. 6 and cooperate, and be used for making attaching assembly 2 to remain on groove 5a reliably.This location notch 5e preferably is located among the bossing 5f of groove 5a bottom.Also available other suitable device replaces described positioner, is used for making attaching assembly 2 detachably to remain on basic bearing assembly 5.

Fig. 2 summarily is illustrated in the auxiliary switch 1 of combination previous moment, and its situation is, wherein as in Germany, bus S extend in unshowned shape for hat rail below.Basic bearing assembly 5 will be installed in this wise by hook lock on the line protection switch of unshowned shape for hat rail, and promptly its groove 5c is towards bus S and terminal 51,52, and 53 are positioned at the first half.Before this, with attaching assembly 2 insertion groove 5a in this wise: disconnection (AUS) position that will cause auxiliary switch 1 by swinging operation handle 3 downwards.This means simultaneously, turns over connection (EIN) position that operating grip 3 upward will cause auxiliary switch 1.

In Fig. 3, on the contrary, basic bearing assembly 5 will be installed in by hook lock on the line protection switch of unshowned shape for hat rail with the position that relative Fig. 2 falls turnback.In the case, it is positioned at the first half towards the groove 5c of bus S, and terminal 51,52,53 is positioned at Lower Half.Before this, with attaching assembly 2 with Fig. 2 in same position install so that guarantee the assigned position of operating grip 3.

Though illustrated embodiment is represented an auxiliary switch that can discharge from the outside, this combining form divided into two parts also can be used for the combination of fault-signal switch and auxiliary switch and fault-signal switch.In addition, this modular construction mode can be advantageously utilised on a kind of main switch, on for example a kind of line protection switch.Under the situation of line protection switch, the switch of kit form is divided and not necessarily will be divided into a mechanical component and an electric assembly.But these two assemblies all can be made up of machinery and the mixing of electric parts.In the embodiment of a simplification, the attaching assembly only holds operating grip, and basic bearing assembly is accepted all other parts.

Claims (9)

1. current switch, it comprises a switching mechanism (4), this switching mechanism not only can be operated by an operating grip (3) that is installed on this switching mechanism, and can be from external trigger or triggering automatically, this switching mechanism acts at least one contact (6), wherein this current switch (1) is divided into a basic bearing assembly (5) and an attaching assembly (2) that separate and that support this operating grip (3) and this switching mechanism (4) at least that holds this contact (6) in the sub-assembly mode, it is characterized in that, this basic bearing assembly (5) can be assembled on different relative positions selectively with this attaching assembly (2), wherein this switching mechanism (4) comprises a push rod (4a) in the face of the central authorities at the back side of this basic bearing assembly (5) that is arranged on this attaching assembly (2), this push rod reaches outer and this push rod of attaching assembly (2) and is inserted in this basic bearing assembly (5) in the hole (5d) on this basic bearing assembly (5) front of this attaching assembly (2) by one when going up this attaching assembly (2) being installed to this basic bearing assembly (5), so that directly act on described at least one contact (6).

2. current switch as claimed in claim 1; it is characterized in that: be used for as the extra switch ground of external trigger this current switch (1) being installed to a coupling device on the route protection main switch but be provided with one, wherein said at least one contact (6) is an auxiliary contact or a fault-signal contact.

3. current switch as claimed in claim 1; it is characterized in that: this attaching assembly (2) can be inserted into the groove (5a) on the front of this basic bearing assembly (5) from the front, and this basic bearing assembly has a groove (5c) at one towards a shape for hat rail that is used to pin this route protection main switch and this basic bearing assembly with the back side (5b) on the top side of a bus (S) or bottom side.

4. current switch as claimed in claim 3; it is characterized in that: basic bearing assembly (5) only has the terminal of going up in front and be used for described at least one auxiliary contact or fault-signal contact (51 on half; 52; 53); and this basic bearing assembly can so fit together with this route protection main switch that is locked on this shape for hat rail; be that terminal (51,52,53) only is positioned at bus (S) and extends on opposite half.

5. current switch as claimed in claim 3, it is characterized in that: two opposed side walls of the housing of this attaching assembly (2) are aimed at the corresponding sidewall of the housing of this basic bearing assembly (5) under assembled state, and this attaching assembly (2) can be inserted in the groove (5a) of this basic bearing assembly (5) on the diverse locations of two 180 degree that stagger.

6. current switch as claimed in claim 5, it is characterized in that: see over from the front of this basic bearing assembly (5), the described groove (5a) of this basic bearing assembly (5) is arranged on middle and has guider (54 on opposed twice circle wall, 55), (2a 2b) forms cooperation for described guider and the guider on the opposite side of this attaching assembly (2).

7. current switch as claimed in claim 1, it is characterized in that: this attaching assembly (2) has the shell-side part (2 ') of a depression, can on this shell-side part, load onto this switching mechanism (4) and operating grip (3) in advance, and this shell-side part can be in the side by the locked sealing of a cap (2 "); thus one, switching mechanism (4) and operating grip (3) are positioned on the service position.

8. current switch as claimed in claim 7, it is characterized in that: this cap (2 ") becomes tabular and have the alignment pin of a protrusion (2 " e) on the back edge of this cap, and this alignment pin can form with the location notch (5e) in the described groove (5a) of this basic bearing assembly (5) and cooperate.

9. as the described current switch of one of claim 1-8, it is characterized in that this basic bearing assembly (5) includes only electric component, and this attaching assembly (2) includes only mechanical part.

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