CN1237568C - Auxiliary device of low-voltage circuit breaker - Google Patents

Auxiliary device of low-voltage circuit breaker Download PDF

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Publication number
CN1237568C
CN1237568C CN 01145294 CN01145294A CN1237568C CN 1237568 C CN1237568 C CN 1237568C CN 01145294 CN01145294 CN 01145294 CN 01145294 A CN01145294 A CN 01145294A CN 1237568 C CN1237568 C CN 1237568C
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CN
China
Prior art keywords
circuit breaker
servicing unit
connecting rod
arm
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 01145294
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Chinese (zh)
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CN1362719A (en
Inventor
G·莫罗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB AB
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ABB Service SRL
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Filing date
Publication date
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Publication of CN1362719A publication Critical patent/CN1362719A/en
Application granted granted Critical
Publication of CN1237568C publication Critical patent/CN1237568C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/126—Automatic release mechanisms with or without manual release actuated by dismounting of circuit breaker or removal of part of circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/06—Housings; Casings; Bases; Mountings
    • H01H73/08—Plug-in housings

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  • Breakers (AREA)
  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

An accessory device for locking the resetting mechanism of a circuit breaker of the draw-out or removable type, characterized in that it comprises: an insulating enclosure; an actuating lever which protrudes, at least partially, outside said insulating enclosure; a kinematic chain which is accommodated inside said insulating enclosure and is operatively coupled to said actuating lever; and a lever for coupling to said resetting mechanism, said coupling lever being operatively coupled to said kinematic chain and protruding at least partially outside said insulating enclosure.

Description

The protective device of the servicing unit of under-voltage circuit breaker and low-voltage electronic circuit
Technical field
The present invention relates to the servicing unit of a kind of extraction or detachable type under-voltage circuit breaker, more particularly, ' under-voltage circuit breaker ' should be understood to a kind of the highest circuit breaker that is about 1000 volts of operating voltage that is used in.
Background technology
Known that in the prior art family and industrial power circuit adopt circuit breaker usually; circuit breaker is considered to desired performance can be provided, so that guarantee to be provided with the proper operation of circuit of circuit breaker and the associated apparatus that protection is connected avoids occurring destroying or fault in the normal operation cycle.
These circuit breakers and other device that can link together, as to be used for providing the basic function that has relatively usually to circuit breaker be the servicing unit of the additional functionality of adding, and normally uses on suitable panel or the controller by being fixed on supporting member such as DIN (Deutsche industry norm (DIN)) guider and selectively being arranged on.
At present circuit breaker can provide various versions, wherein, of the prior art a kind of be so-called pulling out or detachable type.In this embodiment, circuit breaker is provided with two parts, is positioned at the standing part on the supporting member, which is provided with the input and output terminal of the circuit that can be connected to the circuit breaker place; And movable part, the actuating rod of main contacts, contact actuating mechanism and the circuit breaker that resets of its bag circuit breaker.In addition, these two parts also are provided with suitable bindiny mechanism, movable part are electrically connected and electricity disengaging standing part.
Pull out or remarkable advantage that the technical scheme of detachable type circuit breaker has is to help to change the operation of circuit breaker movable part or check circuit breaker, for example keep in repair.In fact just can extract movable part out from standing part with hand by use bindiny mechanism in this case, and can not have influence on the cable that is connected on the terminal.Therefore just have simple and intervention fast.For reasons of safety, separate or connect these two parts and must disconnect circuit breaker in advance, so that throw off main contacts and cut off electric current.In some cases, this requirement may need to place the complete sets of equipment of same supporting member to quit work with circuit breaker.At present, if the operator inadvertently intervenes circuit breaker and at first do not throw off main contacts, when connecting or breaking away from two parts, there is not under any circumstance can both guarantee the system of the failure of current of circuit breaker.In other words.These interventions can not be to take place under the highest safety condition, therefore may occur electrically contacting with the live part that exposes, and mainly are and bindiny mechanism.
Summary of the invention
The purpose of this invention is to provide and a kind ofly be used to extract out or the servicing unit of detachable type under-voltage circuit breaker.This circuit breaker can guarantee that throwing off or be connected and fixed the intervention that part carries out for movable part occurs under the highest safety condition, even operator's cut-off breaker and then intervene at first not.
To achieve these goals, provide a kind of servicing unit that locks the resetting device of extraction or detachable type circuit breaker, it comprises: an insulation crust; One actuating rod to the outstanding described insulation crust of small part; One is contained in the kinematic chain within the described shell, can be connected with described actuating rod to operate; One connects the connecting rod of described resetting device, and described connecting rod can be connected with described kinematic chain to be operated and give prominence to outside the described insulation crust to small part.
The present invention also provides a kind of protective device of low-voltage electronic circuit, it is characterized in that, comprise and extracting out or the detachable type under-voltage circuit breaker, described circuit breaker comprises: base portion can be positioned on the strutting piece and is provided with terminal that connects described circuit and first bindiny mechanism that is electrically connected to described terminal; Movable part can be connected with described base portion or separated; Comprise one hold separately the contact and the housing of described reset of breaker mechanism, described circuit breaker comprise be projected into the outer release link of described housing and be projected into described housing outer and can electricity be connected to second bindiny mechanism of described first bindiny mechanism with breaking away from; And servicing unit, described servicing unit comprise the actuating rod, of an insulation crust, to the outstanding described insulation crust of small part be contained within the described shell and can be connected the connecting rod that the kinematic chain and one of operating connects described resetting device with described actuating rod, wherein said connecting rod can be connected with described kinematic chain to be operated and gives prominence to outside the described insulation crust to small part.
Description of drawings
Other advantage of the present invention and characteristics will be by preferably but the introduction of the embodiment of not exclusive servicing unit of the present invention has clearer understanding.Embodiment just is illustrated by nonrestrictive example in the accompanying drawing.Wherein,
Fig. 1 is the perspective view that servicing unit of the present invention is in the position that the circuit breaker that connected can reset;
Fig. 2 is the perspective view that servicing unit of the present invention is in the position that the circuit breaker that connected cannot reset;
Fig. 3 is the plane graph of the preferred embodiment of servicing unit according to the present invention, and servicing unit is in the position that the circuit breaker that connected can reset;
The servicing unit of Fig. 4 displayed map 3, servicing unit are in the position that the circuit breaker that connected can reset; With
Fig. 5 is the perspective view according to servicing unit of the present invention, and servicing unit is connected to the movable part of extraction or detachable type circuit breaker, is in the process that is connected to fixing base.
Embodiment
With reference to each figure, the servicing unit of the present invention that has reference number 100 usually comprises and will be connected to the shell 1 of the housing of extraction or detachable type low-voltage circuit breaker that ways of connecting and purpose will be described in detail below.
Specifically, as shown in Figure 5, described extraction or detachable type circuit breaker comprise first or the base portion 50 and second movable part 60, can be electrically connected mutually or separately.Base portion 50 has the insulator 51 of moulding, can place the fixed position on the supporting member (not shown, as DIN type guide), is provided with first bindiny mechanism 52 and the terminal 53 that is connected electric power loop.Described bindiny mechanism 52 can advantageously be contained in the insulator 51, except around all be the opening portion that helps to be electrically connected to movable part 60 of insulating material.
Next, second portion 60 comprises housing 61, and according to the extensively cognitive technology that described in detail of therefore not needing in the prior art, housing 61 comprises the mechanism of fixed contact that at least one can connect and throw off mutually and the current collector and the circuit breaker that resets.Particularly, resetting device comprises the actuating mechanism of actuating current collector, and the release link outside the outstanding housing 61 can be connected to the operation that actuating mechanism carries out the hand-reset circuit breaker.In addition, movable part 60 comprises second bindiny mechanism 63, and it is projected into outside the housing 61 and in discerptible mode and is electrically connected to first bindiny mechanism 52.
In embodiment according to servicing unit of the present invention, the insulation crust 1 that can be connected to the housing 61 of movable part 60 as shown in Figure 5 is familiar with by two interconnected half housings, and has base plate, top board, squab panel, two side wall panels and front panel.
Shown in Fig. 1-4, can advantageously comprise according to device of the present invention: protrude in the actuating rod 30 of insulation crust 1 to small part, preferably outstanding from the back plate; Usually the kinematic chain of representing with reference number 20 is contained within the described insulation crust 1 and is operably connected to actuating rod 30; With the connecting rod 10 of the resetting device that is connected circuit breaker, it is operably connected to kinematic chain 20 and from two side plates one and is projected into outside the insulation crust 1 to small part.
Specifically, shown in Fig. 1-4, connecting rod 10 has the special structure part, and an end pivoting of this part is connected to the pivot 11 of shell 1; Also have first end 13, it operationally interacts with kinematic chain 20 and has a part at least as outside the laterally projecting shell 1 of pivot (not seeing among the figure).Special structure partly is operably connected to the resetting device that is positioned at movable part 60 and can applies lock out action thereon.The spring 14 that also is positioned at pivot 13 is operably connected to connecting rod.
Next, actuating rod 30 has moulding section, and this moulding section has first end of kinematic chain of being operably connected to 20 and is positioned at the opposite of first end and is projected into second end 31 outside the shell 1; Described end 31 can interact with the part of circuit breaker so that actuate kinematic chain 20 and cause connecting rod 10 to be released in the locational described lock out action that servicing unit and circuit breaker are installed, and the mode of carrying out will be described in detail below.
In an illustrated embodiment, actuating rod 30 advantageously has the cantilever rhabodoid, and its second end group originally is the T type, and is provided with groove 34 at the alar part of T type end 31, helps the destruction of described alar part.
Kinematic chain 20 comprises a pass link rod 21 that can be pivoted around the pivot 12 of shell 1, and has with connecting rod 10 interactional the first arms 23 with the first arm 23 and have second arm, 24, the second arms of angle intervals to be provided with the end 25 of moulding.The end 25 of described moulding can be coated with color arbitrarily, and when movable part 60 was connected to base portion 50, can be arranged in shell 1 was 2 opening at the label of Fig. 5, can reset with the expression circuit breaker.In addition, the preferred embodiment in Fig. 3 and 4, closing link rod 21 has with the 3rd arm of the first arm 23 and second arm, 24 angle intervals and is connected to first end of actuating rod 30; Actuating rod 30 also can be directly connected to second arm 24 and not need to be provided with the 3rd arm 22 in addition, as the embodiment among Fig. 1-2.
In both cases, shown in part among Fig. 1-4, first end of bar 31 has the pivot 32 that can enter the hole 33 that forms on the bar 21.
Second spring 26 is connected to and closes link rod 21, specifically, spring 26 preferably has the helical spring of traction action, and second end that it has first end of the pivot 27 that is connected to shell 1 and is fixed on the pivot 29 of pass link rod 21 as shown in Figure 3-4 perhaps is fixed on the seat 29 shown in Fig. 1-2.
Introduce now according to servicing unit of the present invention actual and use and operate.
At first, servicing unit 100 is connected to the movable part 60 of circuit breaker, shell 1 is connected to as shown in Figure 5 housing 61, like this, by hole suitable on the housing 61 and be connected to its inner resetting device, so just can apply lock out action thereon from the pivot of the outstanding connecting rod 10 of one of two sidewall panelings of shell 1.Specifically, in the embodiment shown in fig. 5, device 100 can advantageously be fixed on movable part 60 left sides of relative circuit breaker front; Depend on the requirement of application, device 100 can also be fixed to the right side of movable part 60; According to fixing position, can suitably break in one of two ends of T shape alar part 34 so that other parts or device can be freely fixing near device 100.
The assembly that obtains like this is connected to the base portion 50 of circuit breaker then, and base portion is positioned at the place, fixed position on fixture such as DIN (Deutsche industry norm (DIN)) guider, and terminal 53 is electrically connected to the circuit at circuit breaker place.
Specifically, the length of actuating rod 30 should make T shape end 31 can not act on the wall 54 of base portion 50 when connecting the starting stage of base portion 50 and servicing unit 100-movable part 60, almost completely inserts fixed body 51 and is insulated the part covering until bindiny mechanism 63.In case finished this step, in the final stage of Connection Step, bindiny mechanism 52 is electrically connected to bindiny mechanism 63, and end 31 contacts with wall 54 and bar 30 applies a release movement and promote to close link rod 21 by pivot 32.Under this impetus, bar 21 rotates and pulling spring 26 around pivot 12.At this moment, spring 14 acts on bar 10 and along the direction dwang 10 shown in the arrow 3 in Fig. 1 and 3, makes end 13 act on arm 23.Have only the bar 10 that is connected with the resetting device of circuit breaker in this case can actuating rod 62 and allow reset of breaker.
When the operator moved in circuit breaker so that from fixing base portion 50 extraction movable parts, this extraction action was no longer docked end 31 with wall 54, contact with end 31 at the starting stage of draw out operation wall 54; Bindiny mechanism 63 exposes from insulator 51 as yet starting stage in this.In this case, bear spring 26 pull lever 21 of tractive, bar 21 promotes connecting rod 10 and overcomes the power that spring 14 applies by arm 23.In this way, bar 10 rotates along arrow 4 indicated directions in Fig. 2 and 4, move to the position that its pivot is connected with the resetting device of circuit breaker, the effect of spring 14 discharges the contact in the movable part 60 and prevents that stopping bar 62 is actuated, and is actually to prevent reset of breaker.
In fact have been found that according to servicing unit of the present invention and realized its intended purposes fully, because it can provide the intervention under circuit breaker is perfectly safe.Introduce as top, extract out from standing part movable part during and be connected during, device 100 can prevent electric current inflow circuit breaker effectively and prevent in this case bar 62 unsuitable interventions in order to avoid cause reset of breaker when having the live part that exposes.Therefore eliminate or reduced at least considerably the possibility of direct or indirect connection, the consequence of connection is to bring sizable danger to the operator.Not the fact that should ignore be all improved functions and invention each side can very the element and the material of reasonable price be realized by having of buying of common commercial approach.
The servicing unit that obtains like this allows and carries out multiple improvement and variation, and all improvement should belong in the scope of notion of the present invention, and for example, as long as the occasion of using allows, the shape of each bar and element can be made amendment.All details or element can further be replaced by other technical element that is equal to.
In fact used material and size can be selected arbitrarily with technical conditions as requested.

Claims (11)

1. a servicing unit that locks the resetting device of extraction or detachable type circuit breaker is characterized in that, comprising:
Insulation crust;
Actuating rod to the outstanding described insulation crust of small part;
Be contained in the kinematic chain in the described shell, it is connected with described actuating rod operates;
The connecting rod that connects described resetting device, described connecting rod can be connected with described kinematic chain to be operated and to the outstanding described insulation crust of small part.
2. servicing unit according to claim 1, it is characterized in that, this insulation crust comprises base plate, top board, squab panel, two sidewall panelings and front panel, and described actuating rod and described connecting rod are respectively outside described squab panel and outstanding described shell of described sidewall paneling.
3. servicing unit according to claim 1 is characterized in that described connecting rod has the special structure part, and at least one part of this special structure part is suitable for being connected on the described resetting device and to described resetting device and applies lock out action; Described actuating rod comprises formed body, first end of this formed body is connected on this kinematic chain and second end of this formed body is positioned at the opposite of described first end and is projected into outside the described housing, and described second end is fit to a part with this circuit breaker and interacts to actuate this kinematic chain and to make described connecting rod be released in the described lock out action of the position that described servicing unit and described circuit breaker install.
4. according to the described servicing unit of one of claim 1 to 3, it is characterized in that, described connecting rod is done pivoted on described shell, described connecting rod has suitable and laterally projecting first and the suitable second portion that with the resetting device of described circuit breaker be connected in described housing outside interactional with described kinematic chain, and first spring is operatively coupled on the described connecting rod.
5. according to the described servicing unit of one of claim 1 to 3, it is characterized in that, described kinematic chain comprises that a pivot around described housing does the pass link rod of pivoting action, and the first arm of at least one and described connecting rod effect is arranged and be operably connected to second spring on the link rod of described pass.
6. servicing unit according to claim 5, it is characterized in that, described pass link rod comprises second arm that angle intervals is arranged with the first arm, and described second arm has shaped ends, and described shaped ends is fit to place the opening of described housing can reset to represent described circuit breaker.
7. servicing unit according to claim 6 is characterized in that, described pass link rod comprises the 3rd arm, and itself and described the first arm and described second arm have angle intervals and can be connected on the described actuating rod.
8. servicing unit according to claim 5 is characterized in that, described second spring is a stiff spring, and its first end is connected to the pivot that forms on the described shell, and second end is fixed on described pass link rod.
9. servicing unit according to claim 3 is characterized in that, described actuating rod has the shaft-like moulding section of cantilever, and its second end is a T shape.
10. servicing unit according to claim 9 is characterized in that, can help to destroy the groove of described alar part alar part being provided with of described T shape end.
11. the protective device of a low-voltage electronic circuit is characterized in that, comprises extracting out or the detachable type under-voltage circuit breaker, described circuit breaker comprises:
Base portion can be positioned on the strutting piece and is provided with terminal that connects described circuit and first bindiny mechanism that is electrically connected to described terminal; With
Movable part can be connected with described base portion or separated; Comprise one hold separately the contact and the housing of described reset of breaker mechanism, described circuit breaker comprise be projected into the outer release link of described housing and be projected into described housing outer and can electricity be connected to second bindiny mechanism of described first bindiny mechanism with breaking away from;
Servicing unit according to claim 1.
CN 01145294 2000-12-28 2001-12-28 Auxiliary device of low-voltage circuit breaker Expired - Fee Related CN1237568C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2000A002852 2000-12-28
ITMI20002852 IT1319717B1 (en) 2000-12-28 2000-12-28 ACCESSORY DEVICE FOR SWITCH

Publications (2)

Publication Number Publication Date
CN1362719A CN1362719A (en) 2002-08-07
CN1237568C true CN1237568C (en) 2006-01-18

Family

ID=11446349

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01145294 Expired - Fee Related CN1237568C (en) 2000-12-28 2001-12-28 Auxiliary device of low-voltage circuit breaker

Country Status (5)

Country Link
EP (1) EP1220258A3 (en)
CN (1) CN1237568C (en)
AR (1) AR032054A1 (en)
BR (1) BR0106109A (en)
IT (1) IT1319717B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1638122B1 (en) * 2004-09-20 2007-05-02 ABB Schweiz AG Protective switch witch polarity indicator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512830A1 (en) * 1995-04-06 1996-10-10 Aeg Niederspannungstech Gmbh Locking device
JP3861401B2 (en) * 1997-09-19 2006-12-20 富士電機機器制御株式会社 Circuit breaker

Also Published As

Publication number Publication date
BR0106109A (en) 2002-09-10
AR032054A1 (en) 2003-10-22
CN1362719A (en) 2002-08-07
EP1220258A2 (en) 2002-07-03
IT1319717B1 (en) 2003-11-03
EP1220258A3 (en) 2004-09-22
ITMI20002852A1 (en) 2002-06-28

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Effective date of registration: 20081226

Address after: Milan Italy

Patentee after: ABB AB

Address before: Milan Italy

Patentee before: ABB Rierca S. P. A.

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Owner name: ABBCO., LTD.

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Granted publication date: 20060118

Termination date: 20131228