CN202034311U - Switch device for low-voltage circuit - Google Patents
Switch device for low-voltage circuit Download PDFInfo
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- CN202034311U CN202034311U CN2010202780541U CN201020278054U CN202034311U CN 202034311 U CN202034311 U CN 202034311U CN 2010202780541 U CN2010202780541 U CN 2010202780541U CN 201020278054 U CN201020278054 U CN 201020278054U CN 202034311 U CN202034311 U CN 202034311U
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- pin connection
- operably connected
- actuating mechanism
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Abstract
A switch device for a low-voltage circuit comprises a main casing consisting of a box and a cover which are assembled together, mobile equipment with a shaped body, a disengaging shaft actuated by at least one protection device, an actuating mechanism, at least one accommodating structure, and at least one corresponding releasing device, wherein the casing accommodates one or a plurality of electrode(s), every electrode comprises at least one fixed contact and movable contact which are in reciprocating coupling/ disengaged coupling; the shaped body is provided with accommodating units suitable for accommodating corresponding movable contact of every electrode; the actuating mechanism is operated through an operating rod or the disengaging shaft, and connected with the mobile equipment in an operable manner; the actuating mechanism comprises a plurality of elements, wherein, at least one first element is connected with a second element through a pin connection device in an operable manner; and the accommodating structure is limited in a main body suitable for accommodating at least one auxiliary device of the switch device, and the auxiliary device body at least comprises a hook device.
Description
Technical field
The utility model relates to a kind of electric switchgear, is specifically related to a kind of automatic circuit breaker or isolating switch that preferably is applied to the type that is called mould case circuit breaker (MCCB) in the low-voltage circuit.
Background technology
As everyone knows, the switching device that uses at (being used for the application that rated voltage is up to 1000VAC/1500V DC) low-voltage circuit is to allow the specific features of electrical system and the device that operationally relevant with it load is correctly worked, normally circuit breaker, automatic circuit breaker, isolating switch and contactor, be commonly referred to as " switching device ", and hereinafter be generically and collectively referred to as circuit breaker.
Circuit breaker can be implemented as various structures, and generally includes the shell that holds one or more electrodes; Each electrode also all comprises at least one movable contact that " connects/break away from connection " with its corresponding rest(ing) contact; These contacts all are connected to and are used for being connected corresponding terminal with the I/O of interlock circuit.
Special actuating mechanism causes right the relatively moving in contact, thereby it can be in coupled position (close circuit breaker) and separation point position (opening circuit breaker).The connection of contact/disengaging connection occurs in the specific arc chamber.Actuating mechanism usually occurs on the main shaft in the effect on the movable contact, and this main shaft is operably connected on the movable contact, or by operationally supporting their mobile device.This actuating mechanism is made up of scaffold usually, and this scaffold supporting is provided with the kinematic chain of at least one element, and this at least one element is operably connected on the main shaft, perhaps on the mobile device, to allow moving of they.
This actuating mechanism generally includes at least one disengagement element, takes place unusually in circuit breaker inserts wherein circuit, and for example when short circuit or overload, the protective device of circuit breaker all can make this disengagement element work; This protective device can be for example heat, magnetic, pyromagnetic or electronics.Usually this actuating mechanism interacts with protective device by throwing off axle.
In nearly all scheme, but the kinematic chain of actuating mechanism comprises a plurality of executive components, but in should executive component at least one utilizes hinge connection to be connected on the scaffold, and this hinge connection comprises the pin at the place, end that is bearing in frame side.Under nearly all situation, the portion of interconnecting between other element of kinematic chain is all similar, promptly utilizes the hinge connection that is provided with pin.Fig. 1 and Fig. 2 are the examples of actuating mechanism 1, it comprises scaffold 2, but executive component 3 is connected on this scaffold with rotating manner by transverse bolt 4, its axial location is set up by a plurality of sealing rings, the sealing circle is called the type of " Benzing " 5 in as shown in Figure 1 the actuating mechanism 1, or the type of " Seger " 6 in the actuating mechanism as shown in Figure 21.
Described actuating mechanism comprises a large amount of mechanical organs, at first is hinge connection, and it causes the defective of reliability, weight, overall volume and the cost aspect of circuit breaker.For example, the limit of the pin 4 performance projection design aspects of hinge connection does not allow to place other mechanical part in its vicinity, and this mechanical part will interact with described pin 4 in moving.Make assembling actuating mechanism effort and complicated as the existence of the potted component of sealing ring 5,6 of Benzing or Seger type and so on; Their existence and the existence that reduces other mechanical organ of size have also determined danger that these elements in the circuit breaker depart from jointly, have caused mechanical obstruction, fault and short circuit.
Therefore, under the prior art state, need and improve or keep at least having contradiction between the needs of technical performance by reducing mechanical engineering that number of components, weight and cost make increasing circuit breaker miniaturization.
International Application PCT/EP2009/068009 discloses a kind of actuating mechanism, and it comprises a plurality of elements, and wherein at least the first element is operably connected on second element by pin connection device.
At last, circuit breaker can be provided with a plurality of auxiliary equipments, it comprises the auxiliary contact of the signal of the state (open, close or throw off/trip) that for example is used to send circuit breaker, be used to the actuator of opening, closing or resetting, solenoid actuator, motor actuator, spring charging device, minimum and maximum voltage releasing device, temperature sensor or the like.
Generally speaking, which kind of layout no matter, switching device all must be intervened fast and reliably, must guarantee the sufficiently long life-span, and must have at last as far as possible compact, flexibly, be easy to assembling and easy-to-install structure, and can low-costly realize.
Summary of the invention
The purpose of this utility model provide a kind of have improve function and attribute, and can overcome the switching device of above-mentioned defective.Described switching device is intervened fast and reliably, guarantees the sufficiently long life-span, and have at last as far as possible compact, flexibly, be easy to assembling and easy-to-install structure, and can low-costly realize.
This purpose switching device described below is realized.
A kind of switching device (7) that is used for low-voltage circuit, it is characterized in that, comprise: have box (9) that fits together and the main casing (8) that covers (10), described shell (8) holds one or more electrodes, each electrode all comprises at least one fixed contact (139) and movable contact (22), and this at least one fixed contact (139) and movable contact (22) can back and forth connect/break away from connection; Mobile device (38) with forming body, this forming body all have the accomodating unit (39) that is suitable for holding corresponding movable contact (22) for each electrode; Disengagement axle (78) by at least one protective device (85) actuating; Actuating mechanism (60), it is by action bars (13) or by described disengagement axle (78) operation, and be operably connected on the described mobile device (38), move to allow it, described actuating mechanism comprises a plurality of elements (73,104,119,61,84,129), wherein at least the first element is operably connected on second element by pin connection device; At least one contained structure (92), it is limited in the body (95) of at least one auxiliary equipment (93) that is suitable for holding described switching device (7), described body (95) comprises hook device (96) at least, is used for it is hooked to described contained structure (92); With at least one corresponding releasing device (97), this releasing device (97) is operably connected on described at least one hook device (96), described at least one releasing device (97) discharges described at least one hook device (96), with permission described auxiliary equipment (93) is removed from described contained structure (92).
Wherein, described element (73,104,119,61,84,129) comprise first and second side direction part (74,105,120 respect to one another respectively, 63,110,130), this first and second side direction is partly by horizontal coupling part (75,106,121,68,111,131) connect, and described pin connection device comprises respectively the first and second pin ends (107,112,122 from a side direction top rake of described first and second side direction part of described first element, 126,132), and be each defined in described second element described first and described second side direction part on first and second containing seats (108,113,123,127,133), the described first and second pin ends (107,112,122,126,132) be inserted into described first and second containing seats (108 respectively, 113,123,127,133) in, so that between described first element and described second element, be configured to the axis (109,114 of rotation mutually, 124,128,134).
Wherein, described a plurality of element (73,104,119,61,84,129) comprise scaffold (73), this scaffold (73) has first lateral part (75) and second lateral part (77) that connect described first and second side direction parts (74), and described second lateral part (77) is limited by described disengagement axle (78), and described first and second side direction parts (74) are connected on the described disengagement axle (78) with rotating manner.
Wherein, described actuating mechanism (60) has nested structure, the described side direction part (74 of wherein said at least one second element, 105,120,63,110,130) operationally be arranged on the described side direction part (74,105,120 of described at least one first element, 63,110,130) between, make the antetheca (17) of described switching device (7) and the distance between the rear wall (18) equal 60mm substantially.
Wherein, described actuating mechanism comprises the elastic device (117) that is operably connected on described at least one movable contact (22), and described elastic device (117) is located such that in the described first and second pin ends (107,112,122,126,132) apply confining force on so that they are kept and corresponding first and second containing seats (108,113,123,127,133) connect the axis (109 that makes described mutual rotation, 114,124,128,134) keep with respect to described first and second containing seats (108,113,123,127,133) position of basic fixed.
Wherein, described a plurality of element (73,104,119,61,84,129) comprise by first pin connection device and be operably connected to driving connecting rod (61) on the forming body of described mobile device (38), this first pin connection device comprises from the first pin shape part (62) of a side direction top rake of described first side direction part (63) with from the second pin shape part (62) of a side direction top rake of described second side direction part (63), described forming body comprises first and second (64), the first and second pin shape parts (62) are contained in respectively in the described seat, the feasible pivot center (65) that is defined for described driving connecting rod (61) with respect to described forming body, described first and second side direction parts (63) comprise first contact surface (66) and second contact surface (67) respectively, this first contact surface and second contact surface respectively be limited to described forming body on the 3rd contact surface (69) contact with the 4th contact surface (70).
Wherein, described a plurality of elements (73,104,119,61,84,129) comprise by first pin connection device and are operably connected to main hook (104) on the described scaffold (73) that this first pin connection device limits first axis (109) that rotates mutually; Be operably connected to fork (119) on the described main hook (104) by second pin connection device, this second pin connection device limits second axis (124) that rotates mutually; Be operably connected to driving connecting rod (61) on the described fork (119) by the 3rd pin connection device, the 3rd pin connection device is configured to the axis (128) that third phase rotates mutually; Support described action bars (13) and be operably connected to the bar retainer element (129) of described scaffold (73) by the 4th pin connection device, the 4th pin connection device is configured to the 4th axis (134) that rotates mutually; Releasing member (84), this releasing member (84) interacts with described disengagement axle (78) and is operably connected on the described scaffold (73) by the 5th pin connection device, so that limit the 5th axis (114) that rotates mutually.
Wherein, described movable contact (22) comprises the pin shape part (45) that is positioned in the corresponding rotation seat (46), this rotation seat (46) is limited on the described accomodating unit (39), so that be configured to the axis (47) of described movable contact (22) with respect to the mutual rotation of described accomodating unit (39).
Wherein, described at least one protective device (85) comprises protective device magnetic or electromagnetism; protective device this magnetic or electromagnetism comprises the protected location (86) of each electrode that is used for described switching device (7), and described protected location (86) comprises at least one torsion compression spring (90).
Wherein, described lid (10) comprises by hook device (15) and is connected to front shroud (11) on the described lid (10) movably, described front shroud (11) rotates around the pivot center (14) that is limited by described hook device (15), this hook device is included in a pair of element (15) that slides in the corresponding guide, and this guide is limited on the pad (16) of sidewall of described lid (10).
To describe below according to switching device of the present utility model, wherein a kind of embodiment is called circuit breaker; The circuit breaker of " fix " execution of single disconnected with reference to having especially, one pole or multipole (particularly bipolar, three utmost points and four utmost points).Know-why of setting forth in description and scheme will be interpreted as that to other circuit breaker also be effectively, for example have the double-break circuit-breaker of giving the determined number electrode arbitrarily.
Description of drawings
From according to switching device of the present utility model some preferably but the description of not unique embodiment, it is more obvious that feature and advantage will become, these embodiment illustrate in the accompanying drawings as an example, wherein:
Fig. 1 and Fig. 2 are the fragmentary, perspective views of two kinds of actuating mechanisms comprising in the prior art;
Fig. 3-6 illustrates the perspective view of the embodiment of the circuit breaker that is in its one pole, bipolar, three utmost points and four polar forms respectively;
Fig. 7 is the perspective view of the circuit breaker among Fig. 6, and wherein front shroud is shown in an open position;
Fig. 8-the 11st, the decomposition diagram of the box of the circuit breaker of Fig. 3-6, lid and internal part;
Figure 12 and Figure 13 be two of arc chamber of circuit breaker of Fig. 3-6 may execution modes perspective view;
Figure 14 be Fig. 6 circuit breaker mobile device parts and drive the decomposition diagram of connecting rod;
Figure 15 is the detail view of this mobile device, and the inside of two accomodating units of wherein said mobile device is visible;
Figure 16 is the detail view of mobile device that is in and drives the Figure 14 in connecting rod assembling stage;
Figure 17 is the detail view of the pin connecting portion that uses in the actuating mechanism of circuit breaker of Fig. 3-6;
Figure 18 shows each element of actuating mechanism of the circuit breaker of pie graph 3-6 separately;
Figure 19 is the perspective view of embodiment that is connected to the actuating mechanism of the circuit breaker of throwing off the Fig. 3-6 on the axle;
Figure 20 is the cutaway view that comprises the scaffold of actuating mechanism and throw off the group of axle;
Figure 21 illustrates the embodiment of the actuating mechanism of the circuit breaker that is used for Fig. 3-6, and this actuating mechanism is in the stage after the assembling of right half part of assembling stage of left-half of accompanying drawing and accompanying drawing respectively;
Figure 22 and Figure 23 are the perspective views of two kinds of different embodiment of control unit of pyromagnetic relay that is used for the circuit breaker of Fig. 3-6;
Figure 24 illustrates several examples of the auxiliary equipment in the circuit breaker of Fig. 4-6 from different perspectives;
Figure 25 is the side sectional view of actuating mechanism of the circuit breaker of Fig. 3-6, and wherein the sidewall of scaffold is invisible, how to be connected to each other so that each element of this mechanism is shown;
Embodiment
In the following description, for simplicity, the equivalent element that occurs in the different accompanying drawings will be represented with same reference numerals.
With reference to described accompanying drawing, circuit breaker 7 comprises main casing 8, and it comprises box 9 and lid 10; Box 9 and lid 10 are connected into and make that limiting each parts with circuit breaker 7 holds within it volume, and these parts will be described below.
In case box 9 and lid 10 have mechanically been assembled, then circuit breaker 7 illustrates the antetheca 17 that (referring to Fig. 3-6) limited by lid 10 and front shroud 11, the rear wall 18 that limits by box 9, by box 9 and lid 10 roofs that limit 20 and diapire 19, and at last by box 9 with cover 10 two sidewalls 21 that limit.
In three polar forms (referring to Fig. 5) and four polar forms (referring to Fig. 6) of circuit breaker 7, on sidewall 21, be limited with some grooves 138, this groove design becomes to hold the cable of auxiliary equipment, this cable is installed in the circuit breaker 7 and is used for being connected with other external device (ED), if several circuit breakers 7 are mounted adjacent, also contact with the sidewall 21 of several circuit breakers 7.
Described in Fig. 8-11, box 9 comprises first contact surface 23, and covers 10 and comprise second contact surface 24, and they are configured to the profile of the complementation that is suitable for installing each other.In the practice, these two contact surfaces 23,24 have each other with the slit and the corresponding projection 140 of accurate mode interlocking, have constituted the labyrinth that prevents the circuit breaker 7 inner gas leakages that produce after the current interruptions.The gas that is produced under any circumstance all can't be overflowed by contact surface 23,24, find by suitable discharge-channel 25 must (by) the effusion path, this discharge-channel passes roof 20, the external environment condition of chamber with circuit breaker 7 links to each other with opening circuit.
Preferably, the chamber of opening circuit that is present in each electrode of circuit breaker 7 all comprises arc chamber 27, and the electric arc that this arc chamber is designed to contact 139,22 after separatings are formed quickens blow-out.Figure 12 shows the embodiment of the arc chamber 27 on the electrode 28 that is assembled into rest(ing) contact 139.Arc chamber 27 comprises the container 29 that is provided with current interruption plate or current interruption sheet 30, and this current interruption plate for example is basic U-shaped and is contained in the container 29 that this container is made by being preferably the electrical insulating material with gasification attribute.The outside of the sidewall 31 of container 29 with profile be processed into be limited to box 9 in the corresponding chamber of opening circuit on geometry, engage, as can be from seeing Fig. 8-11.
This device for example can comprise ventilation barrier 26, and this ventilation barrier is made by metal, high heat capacity or gasification plastic material.Alternately, this device can comprise on the inner surface that is deposited on discharge-channel 25, or even at the open circuit lip-deep material in chamber of qualification with gasification attribute, or alternately this box 9 can be made of the moulding of plastics materials with the attribute that gasifies fully.
Figure 13 shows second embodiment of arc chamber 27, and the difference of itself and first embodiment only is the not isostructure of container 29, and this structure is suitable for comparing bigger circuit breaker 7 with the circuit breaker that is used for the arc chamber 27 shown in Figure 12.
The container of arc chamber 27 for example is embodied as integral piece by Shooting Technique.This arc chamber 27 can be modular and be easy to change, and available and manufacturing main casing 8 different materials are made.
Rotate mobile device 38 and make movable contact 22 work, this rotation mobile device is made by insulating material, and is contained in the space under the chamber of opening circuit of the electrode that is arranged in circuit breaker 7 in the main casing 8; This mobile device 38 comprises forming body, and it all has the accomodating unit 39 that holds relative movable contact 22 for each electrode.Mobile device 38 rotates around pivot center 40, and this accomodating unit 39 realize making movable contact 22 adopt not must with the pivot center 47 of pivot center 40 couplings: pivot center 47 near and to be parallel under the situation of pivot center 40 be like this.
The electrode of circuit breaker 7 by limit by box 9 and lid 10 connection to separate separator 41 separated from one another; This separator 41 has been guaranteed the correct insulation between the electrode, and provides bigger intensity for breaker structure 7.Compare with pivot center 40, visible this separator 41 has the vertical extent part in Fig. 8-11.Particular groove or slit 42 places of this mobile device 38 in the forming body that is limited to this mobile device 38 are passed by separator 41 parts; In case groove 42 is configured such that they are connected on the corresponding separator 41, they just are defined for the pivot center 40 of mobile device 38.
Except guaranteeing supporting to the correct transmission of moving of movable contact 22 and existing power, mobile device 38 also with the electrode that separates separator 41 and provide jointly circuit breaker 7 between electric insulation, so that the chamber of opening circuit of electrode is separated.The electric insulation of all electrodes of circuit breaker 7 can further be improved by unshowned trimmer or fin in the accompanying drawing, this trimmer or fin are made and are directed to part 43 and remain on operating position by insulating material, this guide has constituted the diapire 19 of circuit breaker 7 and the outer surface of roof 20.
Near the end of mobile device 38 and be included in and obtain accomodating unit 39 in the zone of the body between the groove 42, this accomodating unit will be configured as and hold movable contact 22 and their relevant flexible member 44.In this respect, Figure 14 has illustrated movable contact 22 and corresponding flexible member 44 thereof, this two be positioned in each accomodating unit 39; Especially, the mobile device 38 shown in Figure 14 is used for four-pole circuit breaker 7, and therefore has four accomodating units 39.
This movable contact 22 has the substantially flat structure, have first side 49 and second side 50, it launches on the substantially parallel surface that is connected by transverse gage 51, and comprise: first contact part that contact plate 136 preferably is applied thereon, it is used to contact corresponding rest(ing) contact 139; With the second portion that can be connected on the conducting element 58, this conducting element for example comprises the copper braid, and it is electrically connected on the electrode of circuit breaker 7.
Advantageously, this movable contact 22 comprises the pin shape part 45 that is positioned in the corresponding seat 46, and this is limited in the accomodating unit 39 of mobile device 38, as shown in figure 15.This pin shape part 45 turns forward along the direction of the basic quadrature in surface that launches in the above with side 49,50, and in case in the location present 46, then it can be with respect to corresponding accomodating unit 39, just rotate, with described 46 axis 47 that limits the mutual rotation of movable contact 22 with respect to mobile device 38.
The body 48 of movable contact 22 also comprises the hook part 52 that the hook portion by described transverse gage 51 limits.This hook part 52 interacts with flexible member 44 in being contained in identical accomodating unit 39; This flexible member 44 applies power on hook part 52, movable contact 22 is resisted against on the contact surface that is limited by accomodating unit 39.Flexible member 44 also has the calibration function of contact pressure to expectation between movable contact 22 and the corresponding rest(ing) contact 138, and the function of the comparison of the electric repulsive force that can bear with movable contact 22, thereby stablizes these contacts 22.
In the interchangeable embodiment that illustrates, this movable contact 22 can comprise pair of pin shape part, and this turns forward symmetrically to the side 49,50 of pin shape part from forming body 48, thereby forms the axis 47 that rotates mutually with respect to mobile device 38.More exactly, each of these pin shape parts all will be positioned in the corresponding seat, and this is limited on the symmetric part of accomodating unit 39.
In another embodiment, this pin shape part can be limited by the pin that connects with movable contact 22, so that turn forward from a side 49,50 of this contact 22.The axis of the mutual rotation by limiting this contact 22, this pin also can support more movable contacts 22 of back and forth placing side by side.This contact will be corresponding to identical electrode, thereby and is used for identical accomodating unit 39.In another embodiment, the movable contact 22 corresponding to identical electrodes can operationally be placed in the different rotation seats that are limited in the identical accomodating unit 39.
The body 48 of movable contact 22, pin part 45 and hook part 52 can be for example cold mold forming by the conductive metallic material part that is assembled into one.
Still with reference to Figure 15, each accomodating unit 39 all comprises central chamber 53, and movable contact 22 inserts in this central chamber, and is limited with the seat 46 of the pin part 45 that is used for this contact 22 in this central chamber.More accurately, this central chamber 53 is configured such that between first area and second area 59 and stretches, this movable contact 22 is inserted through this first area, in case movable contact 22 has been arranged to its service position, then the part of contact 54 is passed second area.This accomodating unit 39 comprises that also the elastic part 57 of flexible member 44 is contained in first lateral cavity 55 and second lateral cavity 56 wherein; This lateral cavity 55,56 is limited to symmetric position with respect to central chamber 53.
Especially, this mobile device 38 is by being connected on the actuating mechanism 60 by the element that drives connecting rod 61 expressions, and this driving connecting rod comprises first pin connection device 62, and by this first pin connection device, it can be connected on the forming body of mobile device 38.With reference to Figure 14 and Figure 17, these first jockeys comprise the first second pin shape part 62 of selling shape part 62 and turning forward from the second side direction part 63 that drives connecting rod 61 that turns forward from the first side direction part 63.
With reference to Figure 16, the forming body of this mobile device 38 comprises first 64 and second 64, the first and second pin shape parts 62 are inserted into respectively in first and second, thereby limit the axis 65 of the mutual rotation of connecting rod 61 with respect to the forming body of mobile device 38.The axis 65 that rotates is basically parallel to the pivot center 40 of mobile device 38 mutually.Two seats 64 are limited on the identical accomodating unit 39 of movable contact 22, and are placed on the position with respect to central chamber 53 basic symmetries.
The first side direction part 63 of connecting rod 61 comprises first contact surface 66, and this first contact surface is limited to the position relative with the lateral part 68 of connecting rod 61 with respect to the first pin shape part 62.In an identical manner, the second side direction part 63 of connecting rod 61 comprises second contact surface 67, and this second contact surface is also relative with lateral part 42 with respect to the second pin shape part 62.The forming body of mobile device 38 also comprises the 3rd contact surface 69 and the 4th contact surface 70, and it is suitable for contacting respectively first contact surface 66 and second contact surface 67 when pin shape part 62 is inserted in the corresponding seat 64.
Preferably, the 3rd contact surface 69 and the 4th contact surface 70 are curved surface, they respectively with the static surface almost coaxial of first and second rotation seats 64.
According to another preferred embodiment, this first contact surface 66 and second contact surface 67 are curved surface, and its curvature matches on geometry with the curvature of the 3rd contact surface 69 and the 4th contact surface 70 respectively.
Preferably, first and second elements comprise the first and second side direction parts 74,105,120,63,110,130 respect to one another respectively, and they connect by horizontal coupling part 75,106,121,68,111,131.Each pin connection device all comprises the first pin end and the second pin end, and they turn forward from first side direction part of first element and the side of second side direction part respectively.This pin connection device also comprises first containing seat and second containing seat, and they are each defined on first side direction part and second side direction part of second element.This pin-shaped end portion is inserted in the corresponding containing seat, so that be configured to the axis of the mutual rotation between first and second elements, and a feasible rotation that allows in these elements with respect to other element.
This pin-shaped end portion preferably partly is embodied as integral piece with the side direction of first element, and this for example realizes by molded metal or plastic material.According to the first possible embodiment, this first and second pin-shaped ends cage structure becomes feasible and turns forward from first side direction part of first element and the inboard of second side direction part respectively, thereby causes mutual reflection; In the case, first and second elements cause connecting, and make the side direction part of second element can operationally be placed between the side direction part of first element.
Alternately, the first and second pin-shaped end portions form the lateral top rake that makes respectively from first and second side direction part of first element; In the case, these two elements connect between the side direction part that the side direction part that makes the element of winning can operationally be placed in second element.
Figure 17 is the detailed view that is inserted into the example of the pin-shaped end portion 107 in the corresponding containing seat 108, and the embodiment of holding device also is shown, and this holding device can prevent that pin-shaped end portion from separating from containing seat at actuating mechanism 60 assembly process.These devices comprise first projection 71 and second projection 72, and each projection is side-prominent from U-shaped containing seat 108 all; Alternately, this containing seat can be C shape.By this scheme, be attended by " the click clatter " of the insertion of pin-shaped end portion 107 moves, i.e. snap action.This means applying of that the insertion of pin-shaped end portion or its possible removal need appropriateness but the active force of can not ignore, make and avoid the element accidental separation that connected.Aspect time and reliability, this scheme is highly beneficial with respect to actuating mechanism 60 assemblings, and has avoided use potted component 5,6.
The element of actuating mechanism 60 is operably connected, and make to limit by mobile device 38 and acts at least one kinematic chain on the movable contact 22.For this purpose, Figure 18 is shown specifically the element of the kinematic chain of the actuating mechanism 60 shown in Figure 19.
In addition, scaffold 73 in the formation of rolling bearing with separator 41 actings in conjunction of circuit breaker 7.With reference to all 8-9, each rolling bearing all is made of the groove on the body of mobile device 38 42 substantially, and this mobile device is held by the hinge that separation separator 41 and a pair of arched hollow space 76 form, and this arched hollow space is limited on each side direction part 74 of framework 73.
As shown in Figure 20, side direction part 74 connects by second lateral part that the longitudinal component 77 of throwing off axle 78 constitutes; Especially, side direction part 74 is operably connected on this disengagement axle 78 with rotating manner.Figure 20 illustrates with cutaway view and is connected to this scaffold 73 of throwing off on the axle 78.Each side direction part 74 all comprises end sections 79, and pin shape part 80 turns forward from this end sections.Each end sections 79 all is inserted in the cavity 81 of corresponding shape, and this cavity has the surface of matching with pin shape part 80 on geometry, make to allow throws off axle 78 relatively moving with respect to the side direction part 74 of framework 73.More accurately, it is coaxial that shaping cavity 81 is defined as the pivot center 82 that makes with throwing off axle 78.Can observe above-mentioned second coupling part between the side direction part 74 how longitudinal region 77 at the disengagement axle 78 between two shaping cavitys 81 to limit framework 73.
According to another embodiment, scaffold 73 with throw off axle 78 and be connected by " key " connecting portion.The a pair of shaped portion that this connection needs to throw off axle 78 basically is inserted in the suitable Connection Block 83, and as seen, each Connection Block all is limited on the end of side direction part 74 of framework 73 this Connection Block in Figure 21.
Help to limit these schemes of the structure of framework 73 by means of throwing off axle 78, actuating mechanism 60 belongs to independent type, even and separate with the shell 8 of circuit breaker 7, also keep stable structure, make and can install separately, and subsequently with independent operation and 7 assemblings of these circuit breakers.
According to preferred embodiment, this scaffold 73 is made by metal material, for example metal sheet.More accurately, side direction part 74 is assembled into integral piece with horizontal coupling part 75.According to another embodiment shown in Figure 21, this scaffold 73 is for example made by plastic material by molding process.The side direction part 74 of this scaffold 73 and 75 integrally molded of horizontal coupling parts, as can seeing from the left side of Figure 21, Figure 21 shows several elements of the actuating mechanism 60 that is in the assembling stage, plastic frame 73 is wherein arranged, and it is shown as the folding state before of the bridge-type that is used for assembling subsequently that is in.Show the embodiment of the actuating mechanism 60 of the assembling that comprises plastic frame 73 on the right side of Figure 21.
Except the structure that limits scaffold 73, throwing off axle 78 also is operably connected on the releasing member 84 of actuating mechanism 60, so that in case taken place to cause afterwards quick disengagement as the dysfunction of short circuit or overload and so on, 139,22 " closing " configurations that connect transfer " disengagement " configuration that contact 139,22 breaks away from connection to actuating mechanism 60 from the contact after throwing off.
At least one protective device 85 of circuit breaker 7 causes throwing off moving of axle 78, and this protective device all comprises protected location 86 for each electrode; The shell 8 that each protected location 86 all is contained in circuit breaker 7 is arranged in the space of mobile device 38 belows.Circuit breaker 7 shown in the accompanying drawing comprises the protective device 85 of pyromagnetic type; Figure 22 and Figure 23 show the parts according to the protected location 86 of two kinds of embodiment.Described two protected locations comprise bimetallic element; microscrew or " counter-sunk screw " 87 are fixed in this bimetallic element; in case detect electric current greater than normal value; just carry out moving of substantially linear; so that the body outstanding corresponding activation region 88 of bump from throwing off axle 78 causes 78 rotational motions around pivot center 82 of described disengagement axle.Shown in protected location 86 also comprise magnetic armature 89; this magnetic armature can be clashed into corresponding activation region 88 under short-circuit conditions, and remains on resting position by at least one the traction biasing spring 91 shown at least one the torsion compression spring 90 shown in Figure 22 or Figure 23.Use torsion compression spring to allow circuit breaker 7 to reach the degree of miniaturization more.
Alternately, this protective device can be the magnetic relay that only has Magnetic Sensor, perhaps only has the thermal relay of heat sensor.
One or more auxiliary equipments 93 of circuit breaker 7 also can cause throwing off moving of axle 78 by interacting with bar that manifests from described body of throwing off axle 78 or cam 125.Particularly, the circuit breaker 7 of bipolar, three utmost points shown in Fig. 4-6 and four polar forms can comprise the contained structure 92 that is suitable for holding one or more auxiliary equipments 93, each contained structure is all carried out the function of circuit breaker 7, and it can be the function that sends signal, order or control.This contained structure 92 and lid 10 are defined as integral piece in the sidewall 21 of circuit breaker 7 and the space between the action bars 13, as shown in Figure 7.
Generally speaking, the quantity of the contained structure shown in Fig. 7 92, structure and position and be not intended to the structure of the other types of limiting circuit breaker 7 inner structures 92 self.
Figure 24 shows the different examples of auxiliary equipment 93: three views that show open relay in parallel (shunt opening relay) in the left side, show three views of low pressure releasing device in central authorities, and show two views of auxiliary contact on the right side.Each auxiliary equipment 93 all comprises body 95, and this body can be inserted in the seat that is limited by contained structure 92, and is provided with the hook device 96 to contained structure 92 self.Body 95 also is provided with releasing device 97, in case the work of this releasing device then has release hook and mounts and put 96 function.In further detail, releasing device 97 is operably connected on the hook device 96, makes this hook device is discharged from the hook device that is limited by contained structure 92, removes from structure 92 to allow auxiliary equipment 93.Preferably, hook device 96 and releasing device 97 are made integral piece with the body 95 of auxiliary equipment 93.
The kinematic chain of being made by scaffold 73 comprises the main hook 104 that has a structure, and this structure is formed by the first and second side direction parts 105 that back and forth connect by horizontal join domain 106.Main hook 104 is operably connected on the supporting structure 73 by pin connection device, this pin connection device comprises the first and second pin ends 107, this first and second pins end back and forth is limited on the first and second side direction parts 105 of described main hook 104, this first and second pins end is inserted in first and second containing seats 108 accordingly, this first and second containing seat is each defined on the first and second side direction parts 74 of framework 73, this is defined for the pivot center 109 of main hook 104 with respect to framework 73, and this pivot center remains on the fixed position.
Element with the kinematic chain of throwing off axle 78 interactional releasing members 84 formation actuating mechanisms 60.It has the structure of being made up of the first and second side direction parts 110, and this first and second side direction part is back and forth connected by horizontal join domain 111.This releasing member 84 is operably connected on the scaffold 73 by pin connection device, this pin connection device comprises the pin of first and second on the first and second side direction parts 110 that are each defined in described releasing member 84 end 112, this first and second pins end is inserted in first and second containing seats 113 accordingly, this first and second containing seat limits respectively on first and second side direction part of framework 73, forms the axis 114 that rotates mutually.
With reference to Figure 18, releasing member 84 comprises hook device 142, and this hook device is shaped as when actuating mechanism 60 and is in when closing configuration, is operably connected on the hooking region 143 that is limited on the body of throwing off axle 78.Especially, hook device 142 is made by supporting member, and this supporting member laterally turns forward from join domain 111 and from first and second walls, this first and second walls horizontal expansion on the direction opposite with respect to supporting member; Hooking region 143 is limited by first and second contact surfaces, and this contact surface is by forming from two outstanding extensions of body of throwing off axle 78.First and second arms that are in the hook device 142 of closing configuration contact first and second contact surfaces respectively, releasing member 84 is fixed to throws off on the axle 78.
After protective device 85 had been interfered, the final rotation of throwing off axle 78 converted the displacement of hooking region 143 to, and this hooking region has been removed its supporting to hook device 142, determined the rotation of releasing member 84 around the axis 114 that rotates mutually.In this way, releasing member 84 arrives the off-position from the hook position, and the axis 109 that the main hook 104 that is subjected to following elastic device 117 effects at this place, off-position becomes around rotation mutually freely rotates.
With reference to Figure 19, at least one side direction part 110 of releasing member comprises first end 115, and this first end is operably connected to from throwing off on axle 78 the second ends that turn forward 116; Two ends 115,116 back and forth connect by biasing spring 118, this biasing spring permission releasing member 84 from the off-position to appropriate the resetting of hook position.
The kinematic chain of actuating mechanism 60 comprises the element with term " fork " 119 expressions, and this fork has the structure that is made of the first and second side direction parts 120 that back and forth connect by horizontal join domain 121.Fork 119 is operably connected on the main hook 104 by pin connection device, this pin connection device comprises the pin of first and second on the first and second side direction parts 105 that are each defined in described main hook 104 end 122, this first and second pins end is inserted in first and second containing seats 123 accordingly, this first and second containing seat is each defined on the first and second side direction parts 120 of fork 119, thereby limits the axis 124 that rotates mutually.
The kinematic chain of actuating mechanism 60 finally comprises the executive component with term " bar retainer element 129 " expression, and this executive component comprises the first and second side direction parts 130 that connect by to the folding lateral part 131 of small part U-shaped.Should folding purpose be supporting action bars 13, this action bars be at the shell 8 lateral top rakes of circuit breaker 7.Action bars 13 constitutes the interface between actuating mechanism 60 and the operation in practice, and this operates in described mechanism outside, for example can be manual or servo.This operating means determines actuating mechanism 60 from cutting out configuration to opening configuration, and in opening configuration, the movable contact 22 of each electrode of circuit breaker 7 all separates with corresponding fixed contact 139.
In the element of described actuating mechanism 60, except the axis 134 of mutual rotation only shown in Figure 19, the axis that mutually rotates 109,114,124,128,134 parallel to each other and in Figure 25 as seen.
This flexible member comprises a pair of driving spring 117, this has the first end on the symmetric part that is connected to the lateral part 68 that drives connecting rod 61 respectively and is connected to the second end on the symmetric part of lateral part 131 of bar retainer element 129 to driving spring.In the practice, two driving spring 117 location parallel to each other, and utilize specific hook 135 to be connected to drive on connecting rod 61 and corresponding part bar retainer element 129.Driving spring 117 also has the function that elastic force is provided to actuating mechanism 60, needs this elastic force to quicken the rotation of mobile device 38 by driving connecting rod 61, and this rotation of moving meter relates to the separation and/or the connection of the electrode upper contact 139,22 of circuit breaker 7.The another function of spring 117 is to be at circuit breaker 7 to guarantee the suitable pressure of contact 139,22 when closing configuration.
During describing, with reference to some scheme, this scheme allows the miniaturization of the higher degree of circuit breaker 7.These schemes comprise the actuating mechanism 60 with " nested " structure; wherein the side direction of at least one second element part is between the side direction part of at least the first element of same mechanism 60; independent unit construction greater functionality by circuit breaker 7; and final, be used for the use of the torsion compression spring 90 of protective device 85.Because these schemes, can make shown in the circuit breaker 7 image pattern 2-5 like that, have the degree of depth L that has only the 60mm size (referring to Fig. 3-6) that limits by the distance between antetheca 17 and the rear wall 18.
Claims (10)
1. a switching device (7) that is used for low-voltage circuit is characterized in that, comprising:
Have box (9) that fits together and the main casing (8) that covers (10), described shell (8) holds one or more electrodes, each electrode all comprises at least one fixed contact (139) and movable contact (22), and this at least one fixed contact (139) and movable contact (22) can back and forth connect/break away from connection;
Mobile device (38) with forming body, this forming body all have the accomodating unit (39) that is suitable for holding corresponding movable contact (22) for each electrode;
Disengagement axle (78) by at least one protective device (85) actuating;
Actuating mechanism (60), it is by action bars (13) or by described disengagement axle (78) operation, and be operably connected on the described mobile device (38), move to allow it, described actuating mechanism comprises a plurality of elements (73,104,119,61,84,129), wherein at least the first element is operably connected on second element by pin connection device;
At least one contained structure (92), it is limited in the body (95) of at least one auxiliary equipment (93) that is suitable for holding described switching device (7), described body (95) comprises hook device (96) at least, is used for it is hooked to described contained structure (92); With at least one corresponding releasing device (97), this releasing device (97) is operably connected on described at least one hook device (96), described at least one releasing device (97) discharges described at least one hook device (96), with permission described auxiliary equipment (93) is removed from described contained structure (92).
2. device as claimed in claim 1 (7) is characterized in that, described element (73,104,119,61,84,129) comprise first and second side direction part (74,105,120 respect to one another respectively, 63,110,130), this first and second side direction is partly by horizontal coupling part (75,106,121,68,111,131) connect, and described pin connection device comprises respectively the first and second pin ends (107,112,122 from a side direction top rake of described first and second side direction part of described first element, 126,132), and be each defined in described second element described first and described second side direction part on first and second containing seats (108,113,123,127,133), the described first and second pin ends (107,112,122,126,132) be inserted into described first and second containing seats (108 respectively, 113,123,127,133) in, so that between described first element and described second element, be configured to the axis (109,114 of rotation mutually, 124,128,134).
3. device as claimed in claim 2 (7), it is characterized in that, described a plurality of element (73,104,119,61,84,129) comprise scaffold (73), this scaffold (73) has first lateral part (75) and second lateral part (77) that connect described first and second side direction parts (74), described second lateral part (77) is limited by described disengagement axle (78), and described first and second side direction parts (74) are connected on the described disengagement axle (78) with rotating manner.
4. the described device of one of claim (7) as described above is characterized in that described actuating mechanism (60) has nested structure, the described side direction part (74,105,120 of wherein said at least one second element, 63,110,130) operationally be arranged on the described side direction part (74 of described at least one first element, 105,120,63,110,130) between, make the antetheca (17) of described switching device (7) and the distance between the rear wall (18) equal 60mm substantially.
5. device as claimed in claim 2 (7) is characterized in that, described actuating mechanism comprises the elastic device (117) that is operably connected on described at least one movable contact (22), described elastic device (117) is located such that in the described first and second pin ends (107,112,122,126,132) apply confining force on so that they are kept and corresponding first and second containing seats (108,113,123,127,133) connect, the axis (109,114,124 that makes described mutual rotation, 128,134) keep with respect to described first and second containing seats (108,113,123,127,133) position of basic fixed.
6. device as claimed in claim 2 (7), it is characterized in that, described a plurality of element (73,104,119,61,84,129) comprise by first pin connection device and be operably connected to driving connecting rod (61) on the forming body of described mobile device (38), this first pin connection device comprises from the first pin shape part (62) of a side direction top rake of described first side direction part (63) with from the second pin shape part (62) of a side direction top rake of described second side direction part (63), described forming body comprises first and second (64), the first and second pin shape parts (62) are contained in respectively in the described seat, the feasible pivot center (65) that is defined for described driving connecting rod (61) with respect to described forming body, described first and second side direction parts (63) comprise first contact surface (66) and second contact surface (67) respectively, this first contact surface and second contact surface respectively be limited to described forming body on the 3rd contact surface (69) contact with the 4th contact surface (70).
7. device as claimed in claim 2 (7), it is characterized in that, described a plurality of element (73,104,119,61,84,129) comprise by first pin connection device and be operably connected to main hook (104) on the described scaffold (73) that this first pin connection device limits first axis (109) that rotates mutually; Be operably connected to fork (119) on the described main hook (104) by second pin connection device, this second pin connection device limits second axis (124) that rotates mutually; Be operably connected to driving connecting rod (61) on the described fork (119) by the 3rd pin connection device, the 3rd pin connection device is configured to the axis (128) that third phase rotates mutually; Support described action bars (13) and be operably connected to the bar retainer element (129) of described scaffold (73) by the 4th pin connection device, the 4th pin connection device is configured to the 4th axis (134) that rotates mutually; Releasing member (84), this releasing member (84) interacts with described disengagement axle (78) and is operably connected on the described scaffold (73) by the 5th pin connection device, so that limit the 5th axis (114) that rotates mutually.
8. device as claimed in claim 1 (7), it is characterized in that, described movable contact (22) comprises the pin shape part (45) that is positioned in the corresponding rotation seat (46), this rotation seat (46) is limited on the described accomodating unit (39), so that be configured to the axis (47) of described movable contact (22) with respect to the mutual rotation of described accomodating unit (39).
9. device as claimed in claim 1 (7); it is characterized in that; described at least one protective device (85) comprises protective device magnetic or electromagnetism; protective device this magnetic or electromagnetism comprises the protected location (86) of each electrode that is used for described switching device (7), and described protected location (86) comprises at least one torsion compression spring (90).
10. device as claimed in claim 1 (7), it is characterized in that, described lid (10) comprises by hook device (15) and is connected to front shroud (11) on the described lid (10) movably, described front shroud (11) rotates around the pivot center (14) that is limited by described hook device (15), this hook device is included in a pair of element (15) that slides in the corresponding guide, and this guide is limited on the pad (16) of sidewall of described lid (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBG20090021 ITBG20090021U1 (en) | 2009-07-28 | 2009-07-28 | ELECTRIC SWITCHING DEVICE FOR LOW VOLTAGE CIRCUITS. |
| ITBG2009U000021 | 2009-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034311U true CN202034311U (en) | 2011-11-09 |
Family
ID=43726748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202780541U Expired - Lifetime CN202034311U (en) | 2009-07-28 | 2010-07-28 | Switch device for low-voltage circuit |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN202034311U (en) |
| IT (1) | ITBG20090021U1 (en) |
| RU (1) | RU102839U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938782A (en) * | 2015-03-06 | 2016-09-14 | 通用电气公司 | Information display system for switching device, switching device, and method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA025418B1 (en) * | 2013-06-06 | 2016-12-30 | Открытое Акционерное Общество "Нпо "Русский Электропривод" | A high-speed dc switch |
| KR101691107B1 (en) * | 2015-03-11 | 2016-12-29 | 엘에스산전 주식회사 | Molded case circuit breaker |
| RU179394U1 (en) * | 2017-06-27 | 2018-05-14 | Закрытое акционерное общество "Чебоксарский электроаппаратный завод" | AUTOMATIC CIRCUIT BREAKER DEVICE |
| RU200607U1 (en) * | 2020-06-26 | 2020-11-02 | Общество с ограниченной ответственностью производственно-техническая компания «АкЭл» | RETRACTOR BASE FOR RETRACTABLE CIRCUIT BREAKERS |
-
2009
- 2009-07-28 IT ITBG20090021 patent/ITBG20090021U1/en unknown
-
2010
- 2010-07-27 RU RU2010131638/07U patent/RU102839U1/en active
- 2010-07-28 CN CN2010202780541U patent/CN202034311U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938782A (en) * | 2015-03-06 | 2016-09-14 | 通用电气公司 | Information display system for switching device, switching device, and method |
| US10170264B2 (en) | 2015-03-06 | 2019-01-01 | Abb Schweiz Ag | Information display system for switching device, switching device, and method |
Also Published As
| Publication number | Publication date |
|---|---|
| ITBG20090021U1 (en) | 2011-01-29 |
| RU102839U1 (en) | 2011-03-10 |
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Granted publication date: 20111109 |