CN204991631U - Tripping device of residual current action type circuit breaker - Google Patents
Tripping device of residual current action type circuit breaker Download PDFInfo
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- CN204991631U CN204991631U CN201520695360.8U CN201520695360U CN204991631U CN 204991631 U CN204991631 U CN 204991631U CN 201520695360 U CN201520695360 U CN 201520695360U CN 204991631 U CN204991631 U CN 204991631U
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Abstract
Tripping device of residual current action type circuit breaker including electromagnetic system, install the energy -stored spring that magnetic conduction stick, indicator and drive indicator in electromagnetic system popped out, still includes the push rod, and the push rod includes the pivot, is on a parallel with the horizontal plate that vertical board, perpendicular to pivot and the vertical board of pivot setting on the pivot lateral wall set up, be equipped with first drive division and second drive division on the vertical board, be equipped with the boss that is used for output to thread off and trip and move on the horizontal plate, when not producing the electric leakage dropout, the second drive division contacts cooperation restriction indicator with indicator and moves and lock indicator at stable position, usefulness when producing the electric leakage dropout, the magnetic conduction stick makes the push rod rotate to the dropout direction through first drive division, and indicator is popped out by the elasticity of energy -stored spring and makes the push rod accelerate to rotate with second drive division sliding fit, makes the circuit breaker thread off through the boss on the horizontal plate of push rod. Gravity with the help of push rod self increases dropout traction force, realizes reliable quick dropout.
Description
Technical field
The utility model belongs to Low Voltage Electrical Apparatus, is specifically related to a kind of tripping mechanism of residual current action breaker, especially the annex tripping mechanism of miniature circuit breaker.
Background technology
As everyone knows; residual current acting type circuit breaker generally includes contact apparatus, controls contact apparatus disjunction/and closed operating mechanism, control operation mechanism perform the trip gear of tripping operation of threading off; this trip gear has a shared trip shaft; dropout protection (as short circuit, residual current etc.) of various function all needs the trip shaft shared by triggering this could implement the dropout tripping operation of circuit breaker, and the dropout of difference in functionality protection has the respective tripping mechanism for triggering trip action.Tripping mechanism generally includes solenoid; and the transmission mechanism be arranged between solenoid and trip shaft; when residual current (leakage current) reaches rated value; the residual current trip action of solenoid is passed to trip shaft by its transmission mechanism; the tripping mechanism of residual current protecting triggers the trip shaft action of the trip gear in circuit breaker, to cause circuit breaker trip.Described tripping mechanism and the mounting means of circuit breaker have two kinds: one is installation by adhering, and the tripping mechanism under this mode is indivisible parts of circuit breaker; Another kind is that external hanging type is installed, and the tripping mechanism under this mode is an independently annex tripping mechanism, usually can be used as independently product and matches for circuit breaker.
A kind of tripping mechanism of existing leakage protection module have employed rotating dropout actuated piece, return unit and first elastic component (stage clip) that return unit can be driven to move up of rectilinear movement, the cooperation of the second auxiliary section (through hole) that it is inserted by the first auxiliary section (lug boss) on return unit on the second push rod on dropout actuated piece makes dropout actuated piece keep static when not leaking electricity, dropout actuated piece is driven to rotate by the traction piece of tripping coil during electric leakage, this rotation makes the first auxiliary section (projection) skid off in the second auxiliary section (through hole), this skids off and return unit is moved up at the first elastic component (stage clip), make dropout part (the second fillet) on return unit against the second push rod simultaneously.Although its hope to be moved up by return unit and against making dropout part (the second fillet) promote the second push rod and drive dropout actuated piece to rotate rapidly to dropout direction, but in fact this hope cannot realize, because this return unit move up and against, determine dropout part (the second fillet) and promote the second push rod and the direction driving dropout actuated piece to rotate is not dropout direction, but with dropout side in the opposite direction, therefore, releasing energy of first elastic component, for improving dropout actuation force, there is not inevitable association in trip speed or dropout sensitivity, unless also there is other structure undocumented in it.In addition, because dropout actuated piece is provided with three push rods, complex structure, needs traction piece and dropout actuated piece to have higher machining accuracy, and assembling and setting bothers, and processing performance is not good enough, also cause the placement of dropout traction piece unreasonable, and due to the unreasonable placement of dropout traction piece, product is when normally using, traction piece is the level of state instead of vertical state, the gravity of traction piece self can not be utilized to increase the tractive effort of tripping mechanism, so the location structure of traction piece cannot be utilized to realize the location of dropout actuated piece when not leaking electricity, it is insecure that the structure only leaning on the first auxiliary section (lug boss) to insert the cooperation of the second auxiliary section (through hole) makes dropout actuated piece keep static, because this cooperation reliably can not overcome the elastic force of the first elastic component under energy storage state, dropout misoperation is easily caused when impacts such as circuit breaker are given a shock.Further, the dropout actuated piece being provided with three push rods also causes the transmission efficiency of power low, the mechanical unlocking time is long.
Summary of the invention
In order to overcome the design defect of above-mentioned prior art, the purpose of this utility model is to provide a kind of simplicity of design rationally and can improve the tripping mechanism of the reliability of residual current acting and the residual current acting type circuit breaker of trip speed further.
For achieving the above object, the utility model have employed following technical scheme:
A kind of tripping mechanism of residual current acting type circuit breaker, comprise the electromagnetic system 2 be fixed on the housing 1 of circuit breaker, the magnetic conductive rod 3 be arranged in electromagnetic system 2, be arranged on indication piece 5 on housing 1 and the energy-stored spring 6 that drives indication piece 5 to eject movably linearly, described tripping mechanism also comprises push rod 4, and push rod 4 comprises the rotating shaft 41 be pivoted on by push rod 4 on housing 1, be parallel to the level board 43 that rotating shaft 41 is arranged on vertical plate 42 on rotating shaft 41 sidewall, arranges perpendicular to rotating shaft 41 and vertical plate 42; Described vertical plate 42 is provided with the first drive division coordinated with magnetic conductive rod 3 and the second drive division coordinated with indication piece 5, and described level board 43 is provided with the boss 431 for exporting dropout trip operation; When not producing electric leakage and threading off, the second drive division contacts with indication piece 5 and coordinates, and moves for limiting indication piece 5 and indication piece 5 is locked in settling position; Use when producing electric leakage and threading off, magnetic conductive rod 3 makes push rod 4 rotate to dropout direction by the first drive division, indication piece 5 ejects by the elastic force of energy-stored spring 6 and is slidably matched with the second drive division and makes push rod 4 accelerate to rotate, and makes circuit breaker tripping by the boss 431 on the level board 43 of push rod 4.
Preferably, the first described drive division comprises the irregularly-shaped hole 422 be arranged on vertical plate 42, one end of described magnetic conductive rod 3 is provided with the draw-in groove 32 coordinated with irregularly-shaped hole 422, magnetic conductive rod 3 end is connect, to realize the transmission of tripping force or reset force between magnetic conductive rod 3 and push rod 4 with push rod 4 with coordinating of irregularly-shaped hole 422 by draw-in groove 32 through irregularly-shaped hole 422.
Preferably, the second described drive division comprises and is arranged on vertical plate 42 and locks oral pore 421, and a sidewall in fore shaft hole 421 is provided with snap close arc surface 423; Described indication piece 5 is provided with the hasp portion 53 coordinating the evagination locking indication piece 5 with fore shaft hole 421, and in hasp portion 53, correspondence is provided with the hasp arc surface 531 being engaged in snap close arc surface 423 and leaking electricity and realize when threading off accelerating to thread off.
Preferably, described indication piece 5 is provided with confined planes 52, described confined planes 52 orders about to contact with the locating surface 12 be arranged on housing 1 by the elastic force of energy-stored spring 6 at trip status and coordinates, to limit the offside ejection of indication piece 5 and tripping mechanism is stabilized in trip status.
Preferably, reaction spring 7 is provided with in described electromagnetic system 2; Be transformed in the dropout process of trip status by non-trip status, the tripping force of magnetic conductive rod 3 overcomes the elastic force of reaction spring 7 and orders about push rod 4 rotates realization and unblock from indication piece 5 to dropout direction, energy-stored spring 6 releases energy and orders about indication piece 5 and ejects, hasp arc surface 531 contacts and slides and promote push rod 4 and accelerates to rotate to dropout direction on snap close arc surface 423, until the confined planes 52 on push rod 4 contacts with locating surface 12, so that push rod 4 and indication piece 5 are stabilized in trip positions; Be transformed in the reseting procedure of non-trip status by trip status, artificial operating physical force promotes indication piece 5 and resets to opposite direction indentation, push rod 4 rotates to reset direction under the elastic force effect of reaction spring 7, snap close arc surface 423 contacts with hasp arc surface 531 and relative sliding reaches latched position, and push rod 4 and indication piece 5 are locked in non-trip positions by the elastic force effect of reaction spring 7.
Preferably, the vertical plate 42 of described push rod 4 is connected with the sidewall of rotating shaft 41, described level board 43 is connected with vertical plate 42, the irregularly-shaped hole 422 coordinated with magnetic conductive rod 3 is provided with in the middle part of vertical plate 42, be provided with fore shaft hole 421 at vertical plate 42 and the junction of level board 43, a sidewall in fore shaft hole 421 is provided with snap close arc surface 423; Described level board 43 is provided with away from the side of vertical plate 42 boss 431 exporting dropout trip operation.
Preferably, groove 4221 and the through hole 4222 of mutual UNICOM is comprised in described irregularly-shaped hole 422; Described groove 4221 is connected with the draw-in groove 32 on magnetic conductive rod 3, and the diameter of described through hole 4222 is greater than the width of groove 4221, to allow that the external end head 33 of magnetic conductive rod 3 extends there through.
Preferably, described magnetic conductive rod 3 comprises the end stand 31, barred body 30, draw-in groove 32 and the external end head 33 that are connected successively, and the diameter of described draw-in groove 32 is less than the diameter of its external end head 33 and barred body 30; Described end stand 31 is connected with reaction spring 7, and barred body 30 is supported in electromagnetic system 2 in the mode that can move linearly along described horizontal direction E.
Preferably, the reaction spring 7 driving magnetic conductive rod 3 to eject to horizontal direction E is provided with in described electromagnetic system 2; Described indication piece 5 can move linearly along with the orthogonal vertical direction F of horizontal direction E, and described energy-stored spring 6 can drive indication piece 5 to eject to vertical direction F.
Preferably, the vertical plate 42 on described push rod 4 stretches along described vertical direction F; Level board 43 on push rod 4 stretches along described horizontal direction E; The vertical direction F axially both with described of described rotating shaft 41 is vertical, and the horizontal direction E again with described is vertical.
The tripping mechanism of the utility model residual current acting type circuit breaker is coordinated with the contact of indication piece by push rod, the acceleration being realized tripping mechanism by the acting in conjunction of the magnetic conductive rod of electromagnetic system and the energy-stored spring of indication piece is threaded off, coordinated with magnetic conductive rod and indication piece by the vertical plate of push rod, the boss exporting dropout trip operation is arranged on the level board vertical with vertical plate with rotating shaft, gravity by push rod self increases dropout tractive effort, realizes reliable trip action fast.By adopting push rod and rotating shaft disposed thereon, snap close arc surface, irregularly-shaped hole and boss, the structure of indication piece and confined planes disposed thereon and the ingenious cooperation of hasp arc surface, and utilize the elastic force of reaction spring and energy-stored spring, make full use of traction piece self gravitation and add tractive effort, achieve the optimization of power system distributed architecture, not only reliable operation, the velocity of rotation of push rod effectively can be accelerated in dropout process, each action piece can also be made reliable and stable at trip positions or non-trip positions simultaneously, and mechanism design advantages of simple, be conducive to miniaturization, conscientiously prior art products complex structure is solved, require higher machining accuracy, assembling and setting bothers, the technical problems such as the mechanical unlocking time is long, avoid the defect easily causing dropout misoperation when impacts such as circuit breaker are given a shock.
Accompanying drawing explanation
The integrally-built schematic perspective view of tripping mechanism of Fig. 1 to be residual current acting type circuit breaker of the present utility model be non-trip status.
The integrally-built schematic perspective view of tripping mechanism of Fig. 2 to be residual current acting type circuit breaker of the present utility model be trip status.
Fig. 3 is the partial sectional view of Fig. 1.
Fig. 4 is the partial sectional view of Fig. 2.
Fig. 5 is the perspective view of push rod 4 parts of the tripping mechanism of residual current acting type circuit breaker of the present utility model.
Fig. 6 is the perspective view at another visual angle of push rod 4 parts shown in Fig. 5.
Fig. 7 is the perspective view of magnetic conductive rod 3 parts of the tripping mechanism of residual current acting type circuit breaker of the present utility model.
Fig. 8 is the perspective view of indication piece 5 parts of the tripping mechanism of residual current acting type circuit breaker of the present utility model.
Fig. 9 is the perspective view of another form of push rod 4 parts shown in Fig. 5, and its three sidewalls 42a, 42b, 42c are self-assembling formations, and they do not have specific function.
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 to 9 provides, further illustrate the embodiment of the tripping mechanism of residual current acting type circuit breaker of the present utility model.
As everyone knows, the tripping mechanism of residual current acting type circuit breaker has two stable operating states usually: trip status and non-trip status.Trip status is exactly that tripping mechanism just completes trip action, although now the electromagnetic force of electromagnetic system 2 is cancelled, but each action piece of tripping mechanism is all in trip positions, the termination as indication piece 5 stretches out to indicate tripping mechanism to be in trip status, the state namely shown in Fig. 2 and Fig. 4.Non-trip status is exactly that tripping mechanism returns to reset mode, retracts in the termination of indication piece 5, to indicate tripping mechanism to be in non-trip status, and the state namely shown in Fig. 1 and Fig. 3.Tripping mechanism is transformed into the trip status shown in Fig. 2 from the non-trip status shown in Fig. 1 need experience dropout process, this process is controlled by the electromagnetic force of electromagnetic system 2, and tripping mechanism is transformed into the non-trip status shown in Fig. 1 from the trip status shown in Fig. 2 need experience reseting procedure, the artificial reset operation of this process need completes.
See Fig. 1 to Fig. 4, the tripping mechanism of residual current acting type circuit breaker of the present utility model comprises the electromagnetic system 2 be fixed on the housing 1 of circuit breaker, can be arranged on to E rectilinear movement the magnetic conductive rod 3 in electromagnetic system 2 in the horizontal direction, vertically can be arranged on to F rectilinear movement the indication piece 5 on housing 1, drive indication piece 5 to the energy-stored spring 6 of vertical direction F ejection as Figure 1-4 and drive magnetic conductive rod 3 to the reaction spring 7 of horizontal direction E ejection as Figure 1-4, the axis of the horizontal direction E shown in Fig. 1-4 and magnetic conductive rod 3, the direction that vertical direction F shown in Fig. 1-4 is namely vertical with the axis of magnetic conductive rod 3, that is, described vertical direction F is mutually vertical with horizontal direction E.Tripping mechanism of the present utility model also comprises push rod 4, and push rod 4 comprises the rotating shaft 41 be pivoted on by push rod 4 on housing 1, be parallel to the level board 43 that rotating shaft 41 is arranged on vertical plate 42 on rotating shaft 41 sidewall, arranges perpendicular to rotating shaft 41 and vertical plate 42; Described vertical plate 42 is provided with the first drive division coordinated with magnetic conductive rod 3 and the second drive division coordinated with indication piece 5, and described level board 43 is provided with the boss 431 for exporting dropout trip operation; When not producing electric leakage and threading off, the second drive division contacts with indication piece 5 and coordinates, and moves for limiting indication piece 5 and indication piece 5 is locked in settling position; Use when producing electric leakage and threading off, magnetic conductive rod 3 makes push rod 4 rotate to dropout direction by the first drive division, indication piece 5 ejects by the elastic force of energy-stored spring 6 and is slidably matched with the second drive division and makes push rod 4 accelerate to rotate, and makes circuit breaker tripping by the boss 431 on the level board 43 of push rod 4.The utility model is coordinated with the contact of indication piece by push rod, the acceleration being realized tripping mechanism by the acting in conjunction of the magnetic conductive rod of electromagnetic system and the energy-stored spring of indication piece is threaded off, coordinated with magnetic conductive rod and indication piece by the vertical plate of push rod, the boss exporting dropout trip operation is arranged on the level board vertical with vertical plate with rotating shaft, gravity by push rod self increases dropout tractive effort, realizes reliable trip action fast.
As viewed in figures 5-8, the first described drive division comprises the irregularly-shaped hole 422 be arranged on vertical plate 42, one end of described magnetic conductive rod 3 is provided with the draw-in groove 32 coordinated with irregularly-shaped hole 422, magnetic conductive rod 3 end is connect, to realize the transmission of tripping force or reset force between magnetic conductive rod 3 and push rod 4 with push rod 4 with coordinating of irregularly-shaped hole 422 by draw-in groove 32 through irregularly-shaped hole 422.Not only this is the concrete structure that magnetic conductive rod 3 coordinates with push rod 4, and magnetic conductive rod 3 provides tripping force but also provide reset force to push rod 4, saves part.Certain magnetic conductive rod 3 also can act directly on push rod 4 and only provide tripping force, and push rod 4 is resetted by back-moving spring.The second described drive division comprises and is arranged on vertical plate 42 and locks oral pore 421, and fore shaft hole 421 is square hole, and a sidewall in fore shaft hole 421 is provided with snap close arc surface 423; Described indication piece 5 is provided with the hasp portion 53 coordinating the evagination locking indication piece 5 with fore shaft hole 421, and in hasp portion 53, correspondence is provided with the hasp arc surface 531 being engaged in snap close arc surface 423 and leaking electricity and realize when threading off accelerating to thread off.This is that push rod 4 contacts the concrete structure coordinated with indication piece 5.
Described indication piece 5 is provided with confined planes 52, and described confined planes 52 orders about to contact with the locating surface 12 be arranged on housing 1 by the elastic force of energy-stored spring 6 at trip status and coordinates, to limit the offside ejection of indication piece 5 and tripping mechanism is stabilized in trip status.Described indication piece 5 is provided with and can coordinates with the Contact of the snap close arc surface 423 on push rod 4 or contact and the hasp arc surface 531 of relative sliding, here " contacting and coordinate " refers under trip status or non-trip status, hasp arc surface 531 contacts with snap close arc surface 423, by this contact with the position (be stabilized in the trip positions shown in Fig. 2 or Fig. 4, or be stabilized in the non-trip positions shown in Fig. 1 or Fig. 3) of stable indication piece 5 and push rod 4; Be included in and contact the contact between hasp arc surface 531 (see Fig. 3), snap close arc surface 423 on the trip status lower push-rod 4 shown in Fig. 2 and the hasp arc surface 531 on indication piece 5 coordinated under the non-trip status shown in Fig. 1 with the snap close arc surface 423 on push rod 4 and coordinate (see Fig. 4).Here with the snap close arc surface 423 " contacting and relative sliding " on push rod 4, the hasp arc surface 531 on indication piece 5 refers to that existing contact has again the dynamic fit of slip, be transformed in the dropout process of trip status at never trip status, hasp arc surface 531 slides under the elastic force effect of energy-stored spring 6 on snap close arc surface 423, the speed of being rotated to dropout direction (counter clockwise direction of Fig. 1 to Fig. 4 coordinate) by this slip quickening push rod 4; Be transformed in the reseting procedure of non-trip status from trip status, snap close arc surface 423 slides under the elastic force effect of reaction spring 7 on hasp arc surface 531, makes push rod 4 and magnetic conductive rod 3 reset (returning to the non-trip positions shown in Fig. 1 or Fig. 3) by the homing action (action by the opposite direction movement to vertical direction F of manual operation) of indication piece 5.As can be seen here, the utility model can accelerate the velocity of rotation of push rod 4 in dropout process, also makes each action piece under trip status or under non-trip status simultaneously, can be in reliable settling position.The confined planes 52 of the indication piece 5 of tripping mechanism of the present utility model orders about to contact with the locating surface 12 be arranged on housing 1 by the elastic force of energy-stored spring 6 at trip status and coordinates, to limit the offside ejection of indication piece 5 and described tripping mechanism be stabilized in trip status, and, irregularly-shaped hole 422 on described push rod 4 is connected with the draw-in groove 32 be arranged on described magnetic conductive rod 3, to realize the transmission of tripping force or reset force between described push rod 4 and described magnetic conductive rod 3.
As shown in Figure 5, Figure 6, described push rod 4 also comprises and is parallel to the vertical plate 42 that rotating shaft 41 is arranged and the level board 43 arranged perpendicular to rotating shaft 41, the vertical plate 42 of described push rod 4 is connected with the sidewall of rotating shaft 41, described level board 43 is connected with vertical plate 42, the irregularly-shaped hole 422 coordinated with magnetic conductive rod 3 is provided with in the middle part of vertical plate 42, be provided with fore shaft hole 421 at vertical plate 42 and the junction of level board 43, a sidewall in fore shaft hole 421 is provided with snap close arc surface 423; Described level board 43 is provided with away from the side of vertical plate 42 boss 431 exporting dropout trip operation.When being there is residual current by the main circuit (not shown) of monitoring circuit breaker, in existing tripping mechanism dropout process, only have the electromagnetic force of electromagnetic system 2 to be applied on actuated piece, therefore the responsiveness of actuated piece is relatively slow.And the rotating shaft 41 of the push rod 4 of tripping mechanism of the present utility model is for being pivotally mounted to housing 1 by push rod 4, and after push rod 4 is in place, make the axis of described rotating shaft 41 mutually vertical with horizontal direction E with the vertical direction F shown in Fig. 1-4, namely rotating shaft 41 as shown in Figures 1 to 4 is axially both vertical with vertical direction F, vertical with horizontal direction E again.Under this structural design, can there be various structures layout in the direction that vertical plate 42 and level board 43 stretch, a kind of preferred layout as shown in Figures 1 to 4: the vertical plate 42 on described push rod 4 stretches along described vertical direction F; Level board 43 on push rod 4 stretches along described horizontal direction E.Obviously, the advantage of this frame mode of the present utility model is: compact conformation, is conducive to the Miniaturization Design of tripping mechanism and circuit breaker; The distribution of power system rationally, is effectively eliminated the impact of gravity for trip speed, is played the effect of the electromagnetic force of electromagnetic system 2 and the elastic force of energy-stored spring 6 further, accelerate the dropout velocity of rotation of push rod 4.The optimal design of carrying out for the concrete structure of push rod 4 is another beneficial features of the present utility model, see Fig. 5,6, the vertical plate 42 of described push rod 4 is provided with the fore shaft hole 421 be arranged side by side with irregularly-shaped hole 422, fore shaft hole 421 is square hole, and snap close arc surface 423 is arranged on a sidewall in fore shaft hole 421.See Fig. 5 and Fig. 9, fore shaft hole 421 is surrounded jointly by snap close arc surface 423 and other three sidewalls 42a, 42b, 42c, shown in Fig. 9 three sidewall 42a, 42b, 42c are vacating space self-assembling formation, they do not have specific function, and their shape and size and snap close arc surface 423 have nothing to do.Irregularly-shaped hole 422 on the vertical plate 42 of described push rod 4 comprises groove 4221 and the through hole 4222 (see Fig. 6) of mutual UNICOM, the diameter of through hole 4222 is greater than the width of groove 4221, and allow that the external end head 33 of magnetic conductive rod 3 passes therethrough, groove 4221 is connected with the draw-in groove 32 on magnetic conductive rod 3.By the structure that these are optimized, foregoing every beneficial effect can be obtained better.
As shown in Figure 1 to Figure 4 with shown in Fig. 8, described indication piece 5 also comprises a hasp portion 53 for the die cavity 51 and an evagination that are installed in energy-stored spring 6, foregoing confined planes 52 is for spacing indication piece 5 to be stabilized in trip status by tripping mechanism, and foregoing hasp arc surface 531 is arranged in hasp portion 53.The energy-stored spring 6 be arranged in die cavity 51 can adopt stage clip, and one end of stage clip is connected with the spring base 11 on housing 1, and the other end of stage clip is connected with the upper bottom surface (not shown) in the die cavity 51 of indication piece 5.Under non-trip status, stage clip energy storage; In dropout process, stage clip releases energy, and its elastic force drives indication piece 5 to eject to vertical direction F.Although the utility model have employed hasp portion 53, under non-trip status, hasp portion 53 also may extend in the fore shaft hole 421 on the vertical plate 42 of push rod 4, but should understand, it is to be coordinated with the contact between the snap close arc surface 423 on a sidewall in the fore shaft hole 421 on push rod 4 by the hasp arc surface 531 in hasp portion 53 to realize that indication piece 5 and push rod 4 are locked in non-trip positions, instead of to be coordinated with the insertion in fore shaft hole 421 by hasp portion 53 and realize, difference is between the two: the function in fore shaft hole 421 is the motion vacating spaces for hasp portion 53, in other words conj.or perhaps for not hindering the motion in hasp portion 53, and be not for making hasp portion 53 limit the motion of push rod 4, do not keep static for making hasp portion 53 order about push rod 4 in other words.Under non-trip status (when namely not leaking electricity), the effect that snap close arc surface 423 in fore shaft hole 421 coordinates with the contact of the hasp arc surface 531 in the hasp portion 53 of indication piece 5, make push rod 4 lock indication piece 5, that is: make push rod 4 order about indication piece 5 and keep static, instead of make indication piece 5 order about push rod 4 to keep static.That is, the utility model realizes push rod 4 and indication piece 5, and to be stabilized in non-trip positions be to be coordinated by the contact between snap close arc surface 423 with hasp arc surface 531 and reaction spring 7 realizes, and surround other three sidewall 42a in fore shaft hole 421, 42b, 42c and push rod 4 and indication piece 5 keep static irrelevant, large-sized three sidewall 42a as shown in undersized three sidewalls and the Fig. 9 shown in from Fig. 5, 42b, 42c, they all have nothing to do with keeping push rod 4 and the static of indication piece 5, in addition, three sidewall 42a, 42b, the shape and size size of 42c keeps static for push rod 4 and indication piece 5 also not to be affected.As can be seen here, not there is between hasp portion 53 with fore shaft hole 421 relation inserted and coordinate.
The concrete structure mode of described magnetic conductive rod 3 can have multiple, a kind of preferred mode is as shown in Figure 1 to Figure 4 with shown in Fig. 7: described magnetic conductive rod 3 comprises the end stand 31, barred body 30, draw-in groove 32 and the external end head 33 that are connected successively, and the diameter of draw-in groove 32 is less than the diameter of external end head 33 and barred body 30; End stand 31 is connected with reaction spring 7, and barred body 30 is supported in electromagnetic system 2 in mode movable linearly.Irregularly-shaped hole 422 on foregoing push rod 4 is connected with the draw-in groove 32 be arranged on described magnetic conductive rod 3 and refers to that described draw-in groove 32 is connected with the groove 4221 in the irregularly-shaped hole 422 on push rod 4.Described reaction spring 7 can adopt stage clip, and one end of this stage clip is connected with the end stand 31 of magnetic conductive rod 3, and the other end of stage clip is connected with the skeleton (not marking in figure) of electromagnetic system 2, and the elastic force of stage clip orders about magnetic conductive rod 3 and ejects to horizontal direction E.Electromagnetic system 2 pairs of magnetic conductive rods 3 apply electromagnetic force, electromagnetic system 2 acts on electromagnetic force on magnetic conductive rod 3 and is greater than the elastic force of reaction spring 7, the direction of electromagnetic force is contrary with the elastic force of reaction spring 7, and this electromagnetic force causes magnetic conductive rod 3 to overcome the elastic force indentation inwards (opposite direction namely to the horizontal direction E shown in Fig. 1-4 moves) of reaction spring 7; Under non-trip status, the elastic force of reaction spring 7 orders about magnetic conductive rod 3 and ejects to horizontal direction E, magnetic conductive rod 3 is had elastic force that one acts on push rod 4, and this elastic force makes push rod 4 have a clockwise direction moment of torsion around its rotating shaft 41; In dropout process, the electromagnetic force of electromagnetic system 2 is ordered about magnetic conductive rod 3 and is moved to the opposite direction of horizontal direction E, and pulls push rod 4 to rotate around the counter clockwise direction of its rotating shaft 41 by draw-in groove 32 and external end head 33.After circuit breaker completes tripping operation of threading off, electromagnetic force is cancelled automatically, but the elastic force of the reaction spring 7 driving magnetic conductive rod 3 to eject to horizontal direction E still exists.
Below in conjunction with Fig. 1-4, interactively and/or the drive connection of the power had between each action piece in trip status, non-trip status and dropout process is described.Tripping mechanism of the present utility model is under the non-trip status shown in Fig. 1 and Fig. 3, the snap close arc surface 423 that the elastic force of reaction spring 7 orders about on push rod 4 contacts with the hasp arc surface 531 on indication piece 5, so that push rod 4 and indication piece 5 are locked in non-trip positions, energy-stored spring 6 is locked in energy storage state, and the confined planes 52 on push rod 4 is locked in the position be separated with locating surface 12.Described tripping mechanism is under the trip status shown in Fig. 2 and Fig. 4, the elastic force of energy-stored spring 6 orders about the confined planes 52 of indication piece 5 and contacts with the locating surface 12 on housing 1, and indication piece 5 is stabilized in ejected position, the snap close arc surface 423 that the elastic force of reaction spring 7 is ordered about on push rod 4 by magnetic conductive rod 3 contacts with the hasp arc surface 531 on indication piece 5, and magnetic conductive rod 3 and push rod 4 are stabilized in trip positions.Described tripping mechanism is being transformed in the dropout process of the trip status shown in Fig. 2 and Fig. 4 by the non-trip status shown in Fig. 1 and Fig. 3, the tripping force of magnetic conductive rod 3 overcomes the elastic force of reaction spring 7 and orders about push rod 4 and rotate to dropout direction, this rotation makes push rod 4 and indication piece 5 unlock, energy-stored spring 6 releases energy and orders about indication piece 5 and ejects to vertical direction F, hasp arc surface 531 slides on snap close arc surface 423, this slip promotes push rod 4 and accelerates to rotate to dropout direction (counterclockwise), until the confined planes 52 on push rod 4 contacts with the locating surface 12 on housing 1, so that push rod 4 and indication piece 5 are stabilized in trip positions.Described tripping mechanism is being transformed in the reseting procedure of the non-trip status shown in Fig. 1 and Fig. 3 by the trip status shown in Fig. 2 and Fig. 4, artificial operating physical force promotes the opposite direction indentation of indication piece 5 to vertical direction F, push rod 4 rotates to reset direction (clockwise direction) under the elastic force effect of reaction spring 7, snap close arc surface 423 contacts with hasp arc surface 531, and relative sliding, until snap close arc surface 423 and hasp arc surface 531 slide into latched position (i.e. position shown in Fig. 1 and Fig. 3), push rod 4 and indication piece 5 are locked in non-trip positions (i.e. position shown in Fig. 1 and Fig. 3) by the elastic force effect of reaction spring 7.In sum, from the explanation of above dropout process, in the process that push rod 4 rotates to dropout direction (counterclockwise) under the effect of the electromagnetic force of electromagnetic system 2, only after snap close arc surface 423 and hasp arc surface 531 slide into unlocked position, indication piece 5 could eject to vertical direction F.From the explanation of above reseting procedure, indication piece 5 under the effect of manual operation power in the process of the opposite direction indentation of vertical direction F, only after snap close arc surface 423 and hasp arc surface 531 slide into latched position, indication piece 5 just locks by push rod 4 by the elastic force of reaction spring 7.The tripping mechanism of residual current acting type circuit breaker of the present utility model is by adopting push rod and rotating shaft disposed thereon, snap close arc surface, irregularly-shaped hole and boss, the structure of indication piece and confined planes disposed thereon and the ingenious cooperation of hasp arc surface, and utilize the elastic force of reaction spring and energy-stored spring, make full use of traction piece self gravitation and add tractive effort, achieve the optimization of power system distributed architecture, the velocity of rotation of push rod effectively can be accelerated in dropout process, each action piece can also be made reliable and stable at trip positions or non-trip positions simultaneously, and mechanism design advantages of simple, conscientiously existing product complex structure is solved, require higher machining accuracy, assembling and setting bothers, the technical problems such as the mechanical unlocking time is long, dropout misoperation can not be caused when impacts such as circuit breaker are given a shock.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. the tripping mechanism of a residual current acting type circuit breaker, comprise be fixed on circuit breaker housing (1) on electromagnetic system (2), the magnetic conductive rod (3) be arranged in electromagnetic system (2), be arranged on indication piece (5) on housing (1) and the energy-stored spring (6) that drives indication piece (5) to eject movably linearly, it is characterized in that:
Described tripping mechanism also comprises push rod (4), and push rod (4) comprises the rotating shaft (41) be pivoted on by push rod (4) on housing (1), be parallel to the level board (43) that rotating shaft (41) is arranged on vertical plate (42) on rotating shaft (41) sidewall, arranges perpendicular to rotating shaft (41) and vertical plate (42); Described vertical plate (42) is provided with the first drive division coordinated with magnetic conductive rod (3) and the second drive division coordinated with indication piece (5), and described level board (43) is provided with the boss (431) for exporting dropout trip operation;
When not producing electric leakage and threading off, the second drive division contacts with indication piece (5) and coordinates, for limiting indication piece (5) motion and indication piece (5) being locked in settling position; Use when producing electric leakage and threading off, magnetic conductive rod (3) makes push rod (4) rotate to dropout direction by the first drive division, indication piece (5) ejects by the elastic force of energy-stored spring (6) and is slidably matched with the second drive division and makes push rod (4) accelerate to rotate, and makes circuit breaker tripping by the boss (431) on the level board (43) of push rod (4).
2. the tripping mechanism of residual current acting type circuit breaker according to claim 1, it is characterized in that: the first described drive division comprises the irregularly-shaped hole (422) be arranged on vertical plate (42), one end of described magnetic conductive rod (3) is provided with the draw-in groove (32) coordinated with irregularly-shaped hole (422), magnetic conductive rod (3) end is connect, to realize the transmission of tripping force or reset force between magnetic conductive rod (3) and push rod (4) with push rod (4) with coordinating of irregularly-shaped hole (422) by draw-in groove (32) through irregularly-shaped hole (422).
3. the tripping mechanism of residual current acting type circuit breaker according to claim 1, it is characterized in that: the second described drive division comprises and is arranged on vertical plate (42) and locks oral pore (421), and a sidewall of fore shaft hole (421) is provided with snap close arc surface (423); Described indication piece (5) is provided with the hasp portion (53) coordinating the evagination locking indication piece (5) with fore shaft hole (421), and hasp portion (53) upper correspondence is provided with the hasp arc surface (531) realizing when being engaged in and leaking electricity with snap close arc surface (423) and thread off accelerating to thread off.
4. the tripping mechanism of residual current acting type circuit breaker according to claim 3, it is characterized in that: described indication piece (5) is provided with confined planes (52), described confined planes (52) orders about to contact with the locating surface (12) be arranged on housing (1) by the elastic force of energy-stored spring (6) at trip status and coordinates, to limit indication piece (5) offside ejection and tripping mechanism is stabilized in trip status.
5. the tripping mechanism of residual current acting type circuit breaker according to claim 4, is characterized in that:
Reaction spring (7) is provided with in described electromagnetic system (2), be transformed in the dropout process of trip status by non-trip status, the tripping force of magnetic conductive rod (3) overcomes the elastic force of reaction spring (7) and orders about push rod (4) rotates realization and unblock from indication piece (5) to dropout direction, energy-stored spring (6) releases energy and orders about indication piece (5) and ejects, hasp arc surface (531) above contacts at snap close arc surface (423) and slides and promote push rod (4) and accelerates to rotate to dropout direction, until the confined planes (52) on push rod (4) contacts with locating surface (12), so that push rod (4) and indication piece (5) are stabilized in trip positions,
Be transformed in the reseting procedure of non-trip status by trip status, artificial operating physical force promotes indication piece (5) and resets to opposite direction indentation, push rod (4) rotates to reset direction under the elastic force effect of reaction spring (7), snap close arc surface (423) contacts with hasp arc surface (531) and relative sliding reaches latched position, and push rod (4) and indication piece (5) are locked in non-trip positions by the elastic force effect of reaction spring (7).
6. the tripping mechanism of residual current acting type circuit breaker according to claim 1, it is characterized in that: the vertical plate (42) of described push rod (4) is connected with the sidewall of rotating shaft (41), described level board (43) is connected with vertical plate (42), the irregularly-shaped hole (422) coordinated with magnetic conductive rod (3) is provided with at vertical plate (42) middle part, be provided with fore shaft hole (421) at vertical plate (42) and the junction of level board (43), a sidewall of fore shaft hole (421) is provided with snap close arc surface (423); Described level board (43) is provided with away from the side of vertical plate (42) boss (431) exporting dropout trip operation.
7. the tripping mechanism of the residual current acting type circuit breaker according to claim 2 or 6, is characterized in that: the groove (4221) and the through hole (4222) that comprise mutual UNICOM in described irregularly-shaped hole (422); Described groove (4221) is connected with the draw-in groove (32) on magnetic conductive rod (3), the diameter of described through hole (4222) is greater than the width of groove (4221), to allow that the external end head (33) of magnetic conductive rod (3) extends there through.
8. the tripping mechanism of residual current acting type circuit breaker according to claim 1, it is characterized in that: described magnetic conductive rod (3) comprises the end stand (31), barred body (30), draw-in groove (32) and the external end head (33) that are connected successively, the diameter of described draw-in groove (32) is less than the diameter of its external end head (33) and barred body (30); Described end stand (31) is connected with reaction spring (7), and barred body (30) is supported in electromagnetic system (2) in the mode that can move linearly along described horizontal direction (E).
9. the tripping mechanism of residual current acting type circuit breaker according to claim 1, is characterized in that: be provided with the reaction spring (7) driving magnetic conductive rod (3) to eject to horizontal direction (E) in described electromagnetic system (2); Described indication piece (5) can move linearly along with horizontal direction (E) orthogonal vertical direction (F), and described energy-stored spring (6) can drive indication piece (5) to eject to vertical direction (F).
10. the tripping mechanism of residual current acting type circuit breaker according to claim 9, is characterized in that: the vertical plate (42) on described push rod (4) stretches along described vertical direction (F); Level board (43) on push rod (4) stretches along described horizontal direction (E); The vertical direction (F) axially both with described of described rotating shaft (41) is vertical, and the horizontal direction (E) again with described is vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695360.8U CN204991631U (en) | 2015-09-09 | 2015-09-09 | Tripping device of residual current action type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695360.8U CN204991631U (en) | 2015-09-09 | 2015-09-09 | Tripping device of residual current action type circuit breaker |
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| CN204991631U true CN204991631U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520695360.8U Active CN204991631U (en) | 2015-09-09 | 2015-09-09 | Tripping device of residual current action type circuit breaker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108133874A (en) * | 2018-01-11 | 2018-06-08 | 浙江天正电气股份有限公司 | A kind of electrical leakage tripping device of leakage circuit breakers |
| CN109449063A (en) * | 2018-11-23 | 2019-03-08 | 徐银 | Trip gear |
| CN110575586A (en) * | 2019-09-12 | 2019-12-17 | 深圳市白狐工业设计有限公司 | Stop gear and analgesia pump |
| CN113176082A (en) * | 2021-03-31 | 2021-07-27 | 山东省农业机械科学研究院 | Device and method for detecting seed discharging performance of air suction seed metering device |
| CN113838718A (en) * | 2021-10-19 | 2021-12-24 | 德力西电气有限公司 | Circuit breaker and tripping device thereof |
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2015
- 2015-09-09 CN CN201520695360.8U patent/CN204991631U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133874A (en) * | 2018-01-11 | 2018-06-08 | 浙江天正电气股份有限公司 | A kind of electrical leakage tripping device of leakage circuit breakers |
| CN108133874B (en) * | 2018-01-11 | 2024-04-02 | 浙江天正电气股份有限公司 | Leakage tripping mechanism of leakage circuit breaker |
| CN109449063A (en) * | 2018-11-23 | 2019-03-08 | 徐银 | Trip gear |
| CN110575586A (en) * | 2019-09-12 | 2019-12-17 | 深圳市白狐工业设计有限公司 | Stop gear and analgesia pump |
| CN113176082A (en) * | 2021-03-31 | 2021-07-27 | 山东省农业机械科学研究院 | Device and method for detecting seed discharging performance of air suction seed metering device |
| CN113176082B (en) * | 2021-03-31 | 2023-01-13 | 山东省农业机械科学研究院 | Device and method for detecting seed discharging performance of air suction seed metering device |
| CN113838718A (en) * | 2021-10-19 | 2021-12-24 | 德力西电气有限公司 | Circuit breaker and tripping device thereof |
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