CN203596294U

CN203596294U - Electric switch device for low voltage circuit

Info

Publication number: CN203596294U
Application number: CN201320696269.9U
Authority: CN
Inventors: M·库尔尼斯; A·贝尔加米尼
Original assignee: Asea Brown Boveri AB
Current assignee: ABB AB
Priority date: 2012-11-06
Filing date: 2013-11-06
Publication date: 2014-05-14
Anticipated expiration: 2023-11-06
Also published as: ITBG20120039U1; EP2728605A1; EP2728605B1; RU142477U1; ES2624436T3

Abstract

Provided is an electric switch device for a low voltage circuit. The electric switch device comprises a housing. The housing has a front wall, a back wall, a first side wall, a second side wall, a lower wall and an upper wall. The housing limits the volume used for holding the components of the switch device. The housing comprises a first part, a second part and a third part. The first part limits a first shell space used for a switch unit. The switch unit comprises one or more electrodes, and each electrode comprises at least a fixed contact point and a movable contact point, and the fixed contact point and the movable contact point can be connected or separated mutually. The second part limits a second shell space used for a control mechanism of the movable contact points of the electrodes. The third part limits a third shell space used for one or more accessory devices of the switch device. The front wall comprises a first shaping part and a second shaping part which are used for closing the shell spaces limited by the second part and the third part at the front wall respectively. The first shaping part and the second shaping part can achieve mutual mechanical separation.

Description

For the electric switchgear of low-voltage circuit

Technical field

The utility model relates to a kind of electric switchgear, and for example switch, circuit breaker or contactor, preferably for low-voltage circuit.

Background technology

Know, the electric switchgear (referred to as " switching device ") using in low tension system (for operating voltage until the purposes of 1000V AC/1500VDC) is the device of the specific features for making electric system and the load proper operation that operatively connects with it.

Switching device generally includes the switch element that is provided with one or more electrodes.

Each electrode comprises at least one fixed contact and corresponding motion contact, and it is electrically connected with the respective terminal for being connected with the line conductor of electric wire.

Can move and make they and corresponding fixed contact connection/separate in the suitable control device contact that makes to move.

In switching device, the motion of motion contact can be determined by operating personnel's manual operation or by the protection being operatively connected with switch element and the operation of control unit (being electronic relay) (in the time being provided with this unit).

Switching device can be provided with servicing unit, for example aforementioned protection and control unit, and the major function of this servicing unit is to carry out the operation of by-pass cock unit according to the function that can be scheduled to by suitable user interface device by operating personnel or arrange.

And, switching device can also be provided with multiple accessories device, this accessories apparatus operatively connects with switch element, so that execution predetermined function, for example auxiliary contact, load actuator, solenoid releasing device, sensor for contact, the spring of signal of the situation (disconnect, closure) of sending switching device.

The switching device of prior art has some problems.

Know, these switching devices comprise shell, are limited with the multiple parts for holding switch element, controlling organization, any protection and control unit and any accessories apparatus in this enclosure.

Conventionally, the antetheca of shell is arranged as the single panel of closing of shell space, and this shell space is predefined for and holds controlling organization and accessories apparatus.

Therefore,, in order to carry out any operation of the shell space that need to enter controlling organization or accessories apparatus, need to dismantle this and close panel.

Therefore, at every turn due to a variety of causes is dismantled while closing panel and therefore when carrying out common attended operation (conventionally being undertaken by unskilled persons) so that for example in associated shell space when installation accessories device, controlling organization that can approach switch unit.

Obviously know that this operation for switching device and fail safe cause larger problem.

Utility model content

The purpose of this utility model is to provide a kind of electric switchgear for low-voltage circuit, and this electric switchgear has improved feature with respect to prior-art devices.

Particularly, the utility model will provide the electric switchgear of a kind of easy operation and the relatively high lsafety level of assurance.

Another object of the present utility model is to provide a kind of electric switchgear, and this electric switchgear was relatively easily manufactured originally with competitive one-tenth.

These objects realize by electric switchgear of the present utility model.

The utility model provides a kind of electric switchgear for low-voltage circuit, comprise shell, this shell has antetheca, rear wall, the first side wall, the second sidewall, lower wall and upper wall, they define the volume of the parts for holding described switching device, described shell comprises: Part I, this Part I defines the first shell space for switch element, this switch element comprises one or more electrodes, each described electrode comprises at least one fixed contact and a motion contact, and described fixed contact and motion contact can be coupled to each other/throw off; Part II, this Part II defines the second shell space for the controlling organization of the motion contact of described electrode; Part III, this Part III defines the 3rd shell space for one or more accessories apparatus of described switching device; It is characterized in that: described antetheca comprises the first shaped portion and the second shaped portion, this first shaped portion and the second shaped portion are respectively used to close at described antetheca place the shell space being limited by described Part II and Part III, described the first shaped portion and the second shaped portion mechanical separation mutually.

Accompanying drawing explanation

, will know according to the further feature of electric switchgear of the present utility model and advantage according to the explanation of preferred (but non-limiting) embodiment of switching device of the present utility model by below, these preferred embodiments represent by example in the accompanying drawings, in accompanying drawing:

Fig. 1 is according to the perspective elevation of the embodiment of electric switchgear of the present utility model;

Fig. 2-6th, the partial, exploded perspective view of the electric switchgear of Fig. 1.

Embodiment

With reference to accompanying drawing, electric switchgear 1(is hereinafter referred to " switching device 1 ") comprise shell 2, this shell 2 is prism shape substantially, and is provided with antetheca 3, rear wall 4, the first side wall 5, sidewall 6, lower wall 7 and upper wall 8.

For switching device 1, wall 3,4 is in position respect to one another, and pair of

sidewalls

5,6 and a pair of lower wall and

upper wall

7,8 are also like this.

The

wall

3,4,5,6,7,8 of shell 2 defines the volume of the parts for holding switching device 1.

Switching device 1 can be fixing or retractible type.

In the first situation, shell 2 is for example fixed on, on supporting structure (distribution board) at rear wall 4 and/or

sidewall

5,6 places.

In the second situation, shell 2 is operatively connected with another supporting shell at

sidewall

5,6 places, and this another supporting shell is for example fixed on, on supporting structure (distribution board) again.Due to the effect of artificial or motor-driven actuated components, switching device 1 can move in the position of another shell " insertion " Suo Shu with between the position of described another shell " extraction ", in this " insertion " position, it is electrically connected with electric wire, in this " extraction " position, it and aforementioned electric wire electricity are thrown off.

Certainly,, in two kinds of described structures, switching device 1 is located so that rear wall 4 is in the face of supporting structure, makes antetheca 3 freely, thereby is easily approached by operating personnel.

The shell 2 of switching device 1 comprises Part I 21, and this Part I 21 defines the first shell space for switch element 20.

Switch element 20 comprises one or

more electrode

20A, 20B, 20C, each

electrode

20A, 20B, 20C are included at least one fixed contact and a motion contact (not shown) of corresponding arc chute (not shown) inside, and this fixed contact and motion contact can be coupled to each other/throw off.

Preferably, the motion of the motion contact of switch element 20, because controlling organization 98 carries out, is connected this controlling organization 98 and these motion operating of contacts.Preferably, switch element 20 is provided with electric terminal 250, for being electrically connected with the line conductor of electric wire.Preferably, electric terminal 250 protrudes from the rear wall 4 of shell 2.

Preferably, the part 21 of shell 2 comprises one or more insulating barrier (not shown), and this insulating barrier is used for being defined for the housing of

electrode

20A, 20B, 20C, and guarantees the best electric insulation between them.

Shell 2 comprises Part II 22, and this Part II 22 defines the second shell space for controlling organization 98, and this controlling organization 98 connects with the motion operating of contacts ground of

electrode

20A, 20B, 20C.

Shell 2 also comprises Part III 23, and this Part III 23 defines the 3rd shell space for one or

more accessories apparatus

91A, 91B, 91C, 91D, this

accessories apparatus

91A, 91B, 91C, 91D can with the operation of components of switching device 1 be connected.

Preferably, shell 2 also comprises Part IV 24, and this Part IV 24 defines the 4th shell space for the protection of switching device 1 and control unit 99.The existence of protection and control unit 99 depends primarily on the method that uses switching device 1.

In the time that switching device 1 is used as the circuit breaker of electric wire, will be less than protection and control unit 99, it is substantially idle that the shell space being limited by the part 24 of shell 2 will keep.

Preferably, shell 2 also comprises Part V 25, and this Part V 25 defines for Artificial Control action bars 97(spring load bar) the 5th shell space, this Artificial Control action bars 97 is operatively connected with controlling organization 98.The normal of reference switch device 1 vertically installed, and the part 21 of shell 2 is operatively positioned near rear wall 4, and between lower wall 7 and upper wall 8,

part

22,23,24,25 is positioned near antetheca 3.

Preferably,

part

22,23 is arranged in the position in upper wall 8 distally of shell 2, and part 24 is positioned near this upper wall 8, higher than

part

21,22,23,25.

Preferably, the part 22 of shell 2 is positioned in the central area of antetheca 3, and part 23 is positioned near at least one in

sidewall

5,6.

Preferably, part 23 is divided into two different separate spaces, and each separate space is positioned near

sidewall

5,6.

In the first separate space, part 23 preferably includes First 231A, 231B, and this First 231A, 231B are positioned near sidewall 5.First 231A, 231B define more than first the 3rd shell space, for some accessories apparatus, for example, load motor 91A and one or more auxiliary contact 91B for spring.

In the second separate space, part 23 preferably includes second 232A, 232B, and this second 232A, 232B are positioned near sidewall 6.Second 232A, 232B define more than second the 3rd shell space, for other accessories apparatus, for example, for multiple signallings contact 91C or multiple releasing device 91D.

The described operating structure of the

part

21,22,23,24,25 of shell 2 can be optimized the shell space for the parts of switching device 1, especially for

accessories apparatus

91A, 91B, 91C, 91D and for the protection of with the shell space of control unit 99.

Therefore, switching device 1 has cramped construction, has limited especially overall dimension.

According to the utility model, antetheca 3 comprises the first shaped portion 31 and the second shaped portion 32, and this first shaped portion 31 and the second shaped portion 32 are for closing respectively the shell space being limited by the

part

22,23 of shell 2 at identical antetheca place.

According to the utility model, the

shaped portion

31,32 of antetheca 3 can mechanically separate mutually.

Preferably,

shaped portion

31,32 can be dismantled from antetheca 3, to can approach the shell space being limited by the

part

22,23 of shell 2.

Preferably, shaped portion 32 can be dismantled from antetheca 3 individually with respect to shaped portion 31.

Preferably,

shaped portion

31,32 mechanically connects mutually, so that can be according to predefined procedure and individually from antetheca 3 dismountings.Particularly,

shaped portion

31,32 mechanically connects mutually, so that described shaped portion 31 only could be dismantled from antetheca 3 after dismantling described shaped portion 32.

Preferably, shaped portion 31 is made up of lid, and this lid can for example, removably be connected with the structure member (frame support bracket) of controlling organization 98 by the fixture of known type, for example, by screw or by interlocking or fastener fixing mechanism connector etc.

Preferably, lid 31 comprises the first opening 51, and this first opening 51 is for making it possible to directly approach the shell space being limited by the Part V 25 of shell 2.

Therefore, control operation bar 97 described in operating personnel's manual operation easily, and do not need to dismantle the parts of antetheca 3.

Preferably, lid 31 comprises the second opening 52, and this second opening 52 is for holding control button 55, and this control button 55 preferably protrudes from antetheca 3.Control button 55 is for example operatively connected with controlling organization 98, and makes operating personnel can in the case of not dismantling the parts of antetheca 3, control their operation.

The second opening 52 can also be used for holding signalling indicating device 56, and this signalling indicating device 56 makes operating personnel can receive easily the information about the mode of operation of switching device, and does not dismantle the parts of antetheca 3.

Preferably, shaped portion 32 comprises shaping frame 325, at least local edge that limits identical antetheca of this shaping frame 325.

Preferably, shaped portion 32 comprises that first and second close panel 321,322, and this first and second closes panel 321,322 and shaping frame 325 links into an integrated entity.

Closing panel 321,322 is preferably arranged to close respectively by seat 231A, the 231B of the part 23 of shell 2, the shell space (for holding

accessories apparatus

91A, 91B, 91C, 91D) that 232A, 232B limit.

As mentioned above, obviously, shaped portion 32 is preferably made up of closing structure, this closing structure comprises at least shaping frame 325 and closes panel 321,322, this is closed the fixture that panel 321,322 can be by known type and removably be connected with antetheca 3, for example, by screw or by interlocking or fastener fixing mechanism connector etc.

As implied above, shaped portion 32 can be with respect to shaped portion 31 independently from antetheca 3 dismountings.

For this reason, shaping frame 325 and close panel 321,322 and be arranged to limit opening 324, the lid 31 of antetheca 3 is positioned at this opening 324 during in its normal operation position at it.

Preferably, the lower length of shaping frame 325 mechanically connects with the respective lower rib 310 of lid 31, so that this lid 31 only can be dismantled from antetheca 3 after dismantling shaping frame 325.

Preferably, the second shaped portion 32 of antetheca 3 comprises that the 3rd closes panel 323, the 3rd closes panel 323 can removably be connected with shaping frame 325 by the fixture of known type, for example, by screw or by interlocking or fastener fixing mechanism connector etc.

Close panel 323 and be preferably arranged to close the shell space (for holding protection and control unit 99) being limited by the part 24 of shell 2.

As shown in Figure 2, when protection and control unit 99 are while packing in the shell space being limited by the part 24 of shell 2, can be by by covering 31, approaching it by the opening 326 of closing panel 321,322 and limited by shaping frame 25.

When closing panel 323 while being operatively connected with shaping frame 325, this opening 326 is closed by closing panel 323.

According to embodiment more of the present utility model, to close panel 323 and can be arranged as supporting electronic user interface device (not shown), this electronic user interface device can removably operatively be connected with protection and control unit 99.

Preferably; these electronic installations can comprise display, and this display for example, for observing easily and select the data that input or output of protection and control unit, other control unit and one or more port (connector of USB " USB " type).

Preferably, upper wall 8 is shaped and has the seat 81 for electric terminal piece 80, and this electric terminal piece 80, between switch element 20 and protection and control unit 99, and is electrically connected with unit 99.

Due to terminal block 80, switch element 20 and/or protection and control unit 99 can and/or be received from stand-by power source with device exchange data signals and/or control signal in switching device 1 outside.

Relate to

accessories apparatus

91A, 91B, 91C, the 91D operation location in the respective housings seat 231A of the part 23 of shell 2,231B, 232A, 232B according to another concern aspect of switching device of the present utility model.

Preferably,

accessories apparatus

91A, 91B, 91C, 91D can operate and be positioned in

respective seat

231A, 231B, 232A, 232B according to " plug and play " or " click clatter " type Installation Modes.

By such definition, mean that

accessories apparatus

91A, 91B, 91C, 91D can install by they being inserted in

aforementioned seat

231A, 231B, 232A, 232B simply, and do not need further electricity or mechanical connection.

Therefore, releasing device 91D preferably includes: the first profiled edge 901, this first profiled edge 901 for corresponding the second profiled edge 2321 mechanical attachment that produce at the wall of respective housings seat 232B (by interlocking or buckle fix); And first electric contact 902, this first electric contact 902 is for according to socket type-scheme or reverse mode and electrically connect with corresponding the second electric contact 2322 that is positioned at respective housings seat 232B.Similarly, auxiliary contact 91B can preferably include: the 3rd profiled edge 903, the three profiled edges 903 for corresponding the 4th profiled edge 2311 mechanical attachment that produce at the wall of respective housings seat 231B (by interlocking or buckle fix); And electric connector 904, this electric connector 904 is used to form the parts of terminal block 80.

In order to facilitate them to be arranged in associated shell seat 321A, spring loads motor 91A can preferably include attachment pegs 905, this attachment pegs 905 for center rest 2313 mechanical attachment (fixing by interlocking or buckle) that are positioned at respective housings seat 231A; And shaping coupling part 906, this shaping coupling part 906 for example, for the fixture by suitable (screw) with abutment wall 2312 mechanical attachment of casing base that defined motor 91A.Preferably, the driving shaft 980 of controlling organization 98 is protruding to the casing base 231A inside of motor 91A, to connect with motor 91A at its shaping wall 907 places.

Preferably, one or more maintenance lids 96 can operatively be connected with

casing base

231A, 231B, 232A, 232B, so that by the one or more operating positions that remain on them in

accessories apparatus

91A, 91B, 91C, 91D.For example, one or more maintenance lids 96 can operatively be connected with the seat 232B for holding releasing device 91D.

Preferably, reversibly motion between the latched position of described releasing device and off-position is covered in these maintenances.

There is significant advantage in effect and easy use with respect to prior-art devices according to switching device 1 of the present utility model.

The antetheca 3 of shell 2 preferably has basic module formula structure, and this has greatly simplified and enters the each shell space being limited by the

part

22,23,24 of shell 2.

In order to enter the shell space (part 24 of shell 2) for holding protection and control unit 99, operating personnel can only close panel 323 from shaping frame 325 dismountings, and do not dismantle the remaining part of antetheca 3, particularly cover 31.

In order to enter the shell space (part 23 of shell 2) for holding

accessories apparatus

91A, 91B, 91C, 91D, operating personnel can dismantle by shaping frame 325 with by the closing structure of closing panel 321,322 and (optionally) 323 formations, also do not dismantle and cover 31.

In order to enter the shell space (part 22 of shell 2) for holding controlling organization 98, operating personnel can dismantle the lid 31 of antetheca 3, preferably after also having dismantled and closing panel 321,322,323.

Obviously know the shell space that this modular organization of antetheca 3 can keep isolated operation personnel not intend or must not enter.

Therefore, entering each shell space can selectively regulate according to the type of the operation that will carry out, thus the safety standard of significantly improving.

Skilled and unskilled persons can both allow to enter the shell space (

part

23,24 of shell 2) for holding

accessories apparatus

91A, 91B, 91C, 91D and protection and control unit 99, to carry out common attended operation.

Only have skilled person can allow to enter the shell space (part 22 of shell 2) for holding controlling organization 98, to carry out special attended operation.

As mentioned above, obviously know easily operation and the relatively high lsafety level of assurance of switching device 1.

Switching device 1 has relatively simple structure, and relatively easy and cheaply in industrial level manufacture.

Claims

1. the electric switchgear for low-voltage circuit (1), comprise shell (2), this shell (2) has antetheca (3), rear wall (4), the first side wall (5), the second sidewall (6), lower wall (7) and upper wall (8), they define the volume of the parts for holding described switching device, and described shell (2) comprising:

Part I (21), this Part I (21) defines the first shell space for switch element (20), this switch element (20) comprises one or more electrodes (20A, 20B, 20C), each described electrode comprises at least one fixed contact and a motion contact, and described fixed contact and motion contact can be coupled to each other/throw off;

Part II (22), this Part II (22) defines the second shell space for the controlling organization (98) of the motion contact of described electrode;

Part III (23), this Part III (23) defines the 3rd shell space of the one or more accessories apparatus (91A, 91B, 91C, 91D) for described switching device;

It is characterized in that: described antetheca (3) comprises the first shaped portion (31) and the second shaped portion (32), this first shaped portion (31) and the second shaped portion (32) are respectively used to locate to close at described antetheca (3) shell space being limited by described Part II (22) and Part III (23), described the first shaped portion (31) and the second shaped portion (32) mechanical separation mutually.

2. electric switchgear according to claim 1, it is characterized in that: described Part III (23) comprises First (231A, 231B) and second (232A, 232B), this First (231A, 231B) and second (232A, 232B) define respectively more than first the 3rd shell spaces and more than second the 3rd shell spaces for described accessories apparatus (91A, 91B, 91C, 91D), described the second shaped portion (32) comprising: shaping frame (325), at least local edge that limits described antetheca (3) of this shaping frame (325); And first close panel (321) and second and close panel (322), this first closes that panel and second is closed panel and described shaping frame (325) links into an integrated entity, and for closing respectively by described First (231A, 231B) and second shell space that (232A, 232B) limits.

3. electric switchgear according to claim 2; it is characterized in that: described shell (2) comprises Part IV (24); this Part IV (24) defines the 4th shell space for the protection of described switching device and control unit (99), and described the second shaped portion (32) is for locating to close the shell space being limited by described Part IV (24) at described antetheca (3).

4. electric switchgear according to claim 3, it is characterized in that: described the second shaped portion (32) comprises that the 3rd closes panel (323), the 3rd closes panel (323) can removably be connected with described shaping frame (325), and for closing the shell space being limited by described Part IV (24).

5. according to the electric switchgear described in any one in claim 2-4, it is characterized in that: described the first shaped portion (31) comprises lid, this lid can removably be connected with described controlling organization (98).

6. according to the electric switchgear described in any one in claim 1-4, it is characterized in that: described the second shaped portion (32) can be dismantled from described antetheca (3) individually with respect to described the first shaped portion (31).

7. electric switchgear according to claim 6, it is characterized in that: described the first shaped portion (31) and described the second shaped portion (32) be mechanical attachment mutually, like this, only could dismantle described the first shaped portion (31) from described antetheca (3) afterwards dismantling described the second shaped portion (32).

8. electric switchgear according to claim 5, is characterized in that: described lid and described shaping frame (325) mechanical attachment, to only could dismantle described lid from described antetheca (3) afterwards dismantling described shaping frame (325).

9. electric switchgear according to claim 5, it is characterized in that: described shell (2) comprises Part V (25), this Part V (25) defines the 5th shell space for Artificial Control action bars (97), and this Artificial Control action bars (97) is operatively connected with described controlling organization (98).

10. electric switchgear according to claim 9, is characterized in that: described lid comprises the first opening (51), and this first opening (51) is for can directly entering the shell space being limited by described Part V (25).

11. electric switchgears according to claim 10, is characterized in that: described lid comprises the second opening (52), and this second opening (52) is for holding control button (55) or the signalling indicating device (56) of described switching device.

12. electric switchgears according to claim 2, is characterized in that: one or more can being operatively positioned in described First (231A, 231B) and/or in described second (232A, 232B) according to " plug and play " or " buckle " type Installation Modes in described accessories apparatus (91A, 91B, 91C, 91D).

13. according to the electric switchgear described in claim 2 or 12, it is characterized in that: one or more in one or more and/or described second (232A, 232B) in one or more maintenance lids (96) and described First (231A, 231B) are operatively connected, to make one or more being held in place in described accessories apparatus (91A, 91B, 91C, 91D).

14. according to the electric switchgear described in any one in claim 1-4, it is characterized in that: this electric switchgear is fixed type.

15. according to the electric switchgear described in any one in claim 1-4, it is characterized in that: this electric switchgear is retractible type.

16. according to the electric switchgear described in any one in claim 1-4, it is characterized in that: this electric switchgear is switch, circuit breaker or contactor.