CN106663552A - Device with movable contact without conductive braid - Google Patents

Abstract

The invention relates to a device with at least one movable contact for a protective apparatus, having a number of recesses equal to the number of movable contacts, a mounting which is stationary relative to the casing which enables the pivoting of said movable contacts and two torsion/compression spiral springs located on either side of the pivoting connection. The springs comprise a straight end provided such as to rest against an inner surface of the recess, and a curved end provided such as to catch on a tab projecting from the end of the movable contact arranged in the recess. The tab and the curved end of the spring are configured and oriented such that the latter exerts a dual force on the tab. Said tab additionally exerts a force substantially along the same line but in the opposite direction of the reaction force of the inner surface on the straight end resting on said surface.

Description

The device with movable contact without conductive braided fabric thing

Technical field

The present invention relates to a kind of device with least one movable contact, it is used for the protection equipment of circuit, for example Breaker or differential gear etc..The present invention is consequently belonging to traditionally be plugged at least one power circuit and guarantee to set to described The field of the equipment of the protection of standby downstream installation.

Background technology

In this case, for every circuit, these protection equipments include being arranged between the interface unit of the circuit Fixed contact therefor and movable contact.There must be the movable contact of certain mobile range typically using the shape of turning arm Formula, is fixed with contact chip at the free end of the arm, and the arm can bear against the closure position on the piece of fixed contact therefor Put and pivot between fixed contact therefor open position in a distance.

In the case where the circuit including these contacts goes wrong (such as due to current overload or short circuit), protection equipment Function be movable contact is separated with fixed contact therefor and open-circuit line, in order to avoid damage constitute it is to be protected Circuit equipment and device.

For this purpose, these protection equipments include movable contact bearing part, the movable contact bearing part be used for via The position of handle is passed to contact by the joystick connection of the position of mechanical each movable contact of lock control, the mechanical lock And vice versa, the lock can also detect that device is activated towards the direction for disconnecting contact by short circuit or current overload.The lock is then Actuating contact part bearing part and one or movable contact are carrying out the disconnection.

These protection equipments can be one pole or multipole, especially three-phase.In all of these situations, contact holds The movement of all movable contacts of holder management equipment protection equipment, the quantity of movable contact is corresponded in practice is protected The quantity of the circuit of shield.

Movable contact is not that contact bearing part is fixed in the way of locking, because allow for producing movably connecing Contact element and contact bearing part controlled rotation stroke relative to each other, to guarantee contact force when contact is closed.Each can Therefore dynamic contact is connected by means of the linkwork including at least one torsionspring with contact bearing part.For circuit Disconnect and in order to from the permanent dual connection of each movable contact to the attachment means for being connected to circuit to be protected (electricity Connection and mechanical connection), the mechanism must also ensure that the pivot of contact bearing part/movable contact component.Therefore, it is necessary to right Pay the dual restrictive condition of the permanent connection and keep the movable feature of contact, the permanent connection to mean to machinery Contact is so that electric current passes through.

In practice, these contact bearing parts are equal to the holding part of movable contact quantity including quantity.Each appearance Putting portion includes allowing for the different component of aforementioned function, and holding part/component assembly in fact forms linkwork.In practice In, the component can be constituted and be hinged sub-component, with ease of assembly.Thus, holding part is for example accommodated：

The part for being able to carry out rotating of-movable contact, together with contact bearing part and circuit remainder,

- for guaranteeing the device being pivoted relative to each other, its form in this is pivotal axis；

- at least one torsion-coil spring that is substantially coaxial with the axle and allowing applying contact force；

- the connecting portion with the downstream part towards O connection system direction of circuit.

It should be noted that the latter connecting portion is detected at device or its upstream in short circuit or current overload, the connecting portion Therefore must be in the form of permission with these device coordinations.In the present case, the connecting portion is not according to existing A kind of commonly used feasibility is realized by means of compliant conductive braid in technology, but via with a certain degree of What the firm connecting portion of the free degree (rotation) was realized, the firm connecting portion includes the support member fixed relative to apparatus casing, should On the one hand firm connecting portion allows each arm of movable contact to be pivoted according to the connecting portion for allowing circuit to pass through, and on the other hand permits Permitted to be connected to protected circuit.

The presence requirement contact bearing part for rotating against between contact bearing part and the arm of movable contact has The rounded geometrical construction of profile, the composition of component is rounded from the profile with the part of the connecting portion that circuit remainder is connected Geometrical construction project.Thus, the holding part of contact bearing part has cylindrical outer shape, and there is permission to introduce linkwork for it Opening, including the support of movable contact, rotary shaft or equivalent fixture, one or more helical springs and the pivot for arm Part.These components be also assembled into itself it is exercisable it is so-called be hinged sub-component, the sub-component have relative to mobile contact The symmetrical profile of longitudinal mid-plane of the arm of part, holding part is also in itself such.

Such construction is present in prior art, such as in patent EP 2 323 155, this patent illustrate one kind Based on the construction of identical components, except the bearing generation that the arm that its pivoting axis is allowed to movable contact is pivoted relative to support member Replace.

Rotary connector between the two elements must be allowed for electric current and pass through and therefore realize what is passed through as guaranteeing Contact is interval (plage).Exactly for this reason, said spiral torsionspring includes disengaged spiral winding, and also uses Make the compression spring with pivot axis abreast applying power, the contact force for being guaranteed guarantees that electric current is in contact in rotary connector Pass through on the apparent surface of part arm/support system.

Therefore, holding part (having been observed that holding part allows for rotating against for different component) must also allow spring Correct breasting, so that spring can play dual parts of it and reversing and compressing.In the type construction, difficulty is to ensure that Readily install and then sub-component will be hinged and be held in place in holding part, and the both pivot of without prejudice to arm or without prejudice to springs Operation.

The content of the invention

These standards are met by proposing a kind of design as the specific configuration of present subject matter, in this design, Each component be optimized to tackle these contact bearing parts/movable contact assembly occur it is all mechanically and electrically Gas problem.

Put it briefly, the device of the present invention includes in insulation shell：

- contact bearing part, it is connected with the joystick for the position via mechanical lock control contact, the machinery Lock is also shorted or current overload detection device is activated, and the movement of lock is transferred to into each movable contact,

- contact the bearing part includes the holding part that quantity is quantity equal to movable contact, and each holding part holds Put with lower member：

The other end of movable contact,

Relative to the support member that housing is fixed, on the one hand it allow the movable contact according to the company for allowing electric current to pass through Socket part is pivoted, and on the other hand allows attachment to protected circuit,

Along pivot axis through the other end of movable contact and the axle of support member, and

Two torsion/compression helical springs substantially coaxial with the axle and positioned at pivot section both sides are arranged to,

- the holding part has cylindrical outer shape and has opening, and the opening allows introducing to be assembled into and is hinged sub-component The component, this is hinged the symmetrical profile of longitudinal mid-plane that sub-component has the arm relative to movable contact, each Holding part also has the symmetry relative to the plane.

Then, of the invention to be primarily characterized in, each holding part includes the groove with straight profile, the groove reality Now being approximately perpendicular in the side wall of pivot axis and being open in the opening in holding part, so as to with functional clearance House and guide the end of the axle；And be that the spring includes substantially straight end and crooked end, and this is substantially straight End is arranged to be used for the inside face of breasting holding part, constitutes unique breasting region of the spring on contact bearing part, should Crooked end is arranged to be used for being attached to lug, the lug from the end of the movable contact being disposed in holding part to Sidewall direction protrusion, the lug is located at that side relative with arm relative to pivot axis.Then, the lug and spring Crooked end be constructed and be oriented to cause spring crooked end on lug approximately along the axis direction line of groove (direction) and towards both direction (sens) apply double reaction plus, constitute each spring on the sub-component only One zone of action.Finally, the lug be applied to it is on equidirectional line but be applied to inner surface bear against it is straight on the face Reaction force on end active force in opposite direction.

Thus, allow to be readily inserted into that the arm around movable contact constitutes is hinged sub-component on these characteristic facts, And these features guarantee the sub-component being properly positioned in its holding part, regardless of whether ruuning situation.

In principle, in existing solution, the balance of torsionspring is always by three point type breastings being distributed in this wise Portion guarantees：Bearing and leaning portion in each in its end tab and inside spring body place (such as on central axial line) The 3rd bearing and leaning portion.Alternatively, the 3rd bearing and leaning portion can realize on the outside of spring body, be in practice to be inserted with wherein Realize in the holding part of the spring.

In the solution for being used, the middle body for constituting spring body is never contacted with the axis of centres, also never Contact with the bottom of the holding part of contact bearing part.

It is no longer proper that Dual-contack at the lug that the arm from movable contact is projected causes bearing and leaning portion Point type, but it is considered the connecting portion of pivot type in practice.Under all of ruuning situation, movable contact and its axle It is held in place well at the bottom of two straight grooves, because the Dual-contack applies the side of the axis approximately along groove To the active force of line, the stable position of sub-component is hinged also as in holding part by the lug on the one hand and on the other hand The counter force that is applied on two ends of spring of apparent surface and cause.

According to a kind of feasible construction, movable contact is formed by two symmetric elements, and each element includes Part I And Part II, the Part I extends to form arm side by side along the corresponding symmetric part of symmetrical plane and another element, The Part II is formed by the ear towards external bias, and the ear is formed with predetermined together with the symmetrical ear of another element The inner space of width, the Part II is installed with the perforate for passing through the axle and including being arranged to be used for and spring The lug of cooperation.

Realize it being basic by contacting interval with the electrical connection of securing supports, the interval geometrical construction of the contact is permitted Perhaps passing through for relative rotary motion and certain current density is guaranteed simultaneously.In the case of selected construction, the yoke formula Design (conception en é trier) constitutes the good solution for allowing to meet two restrictive conditions, and can be by means of Adjustment to the different piece of component is optimized.

Thus, the Part I can include the ribs with longitudinal profile, i.e., the reinforcing ribs is especially pressurized Undergo flexural stress during breasting fixed contact therefor.

Additionally, the Part II can adopt the circular geometry construction for being suitable to rotate naturally, the circular geometry construction Constant connection is provided interval, although the relative motion of arm and support member.

Additionally, moveable arm can be moved in the window realized in the wall of holding part, especially contact is being guaranteed The moment for rotating against.According to position of the arm in the window, a part of of the window can be unlimited, it is allowed to it is sensible extremely The component for being hinged sub-component being arranged in inside holding part.However, for example in a short-circuit situation, the disconnection of contact causes electricity Arc, the movement of the electric arc can affect the part, and possibly destroy or damage electromagnetism connection.Here it is why movable contact The Part I of arm can comprise additionally at least one projection for fixing the protective cover of the component.

The support member of movable contact itself is then made up of such part：The part includes with planar shape first Section, this first not etc. is not provided with the perforate passed through for the axle, with the pre- of the inner space for being substantially equal to movable contact The width of fixed width degree, and the interval geometrical construction contacted with the face for being formed with face the inner space, the first paragraph exists It is changed into the second section outside holding part, second section is configured to form the interface being connected with detection device.

Two functions of support member can well be found out, i.e., on the one hand guaranteed relative together with the arm of movable contact The feasibility of rotary motion, on the other hand allows the connection with the detection device in the downstream for being located at contact pair.

Echoed according to a kind of interval phase of rotating contact with the above Part II with regard to the arm of movable contact Feasibility, the interval part of the contact that the formation of the first paragraph of the support member is contacted with movable contact has circular outer Shape.

According to a feasible modification, the interface being connected with detection device may include to extend the conduction of first section Bar, the conducting rod is intended to be passed through in ring type current sensor (un capteur de courant de type tore), and The free end that it is located at the exit of ring (tore) is interval equipped with the connection of the electric wire for being used to be connected to protected circuit.

The example corresponds to such detection of electrons device：The detection of electrons device is included as current sensor operation Ring, it sends the signal with the current in proportion for passing through in the line to electronic processing circuit.According to from such current sense The signal that device is received, electronic circuit can activate the triggering actuator of mechanical lock.

According to the second possible variant, first section can be extended by the sheet material with planar shape, and the sheet material has It is substantially equal to the thickness of the thickness of first section, and is installed with the attachment screw for making to be connected to detection device and passes through Perforate.

The modification be intended to in the housing for being positioned at equipment with can Crush trigger lock magnetic thermal detector part together with run, Magnetic thermal detector part is substantially magnetic coil and such as bimetal leaf.

According to a kind of feasibility, the support member cooperated with magnetic thermal detector part is arranged to be used for by least in the first section In realize that each part is prolonged by such part relative to symmetrical two parts of longitudinal mid-plane of the arm of movable contact It is long：The part has the profile with the symmetrical shape of the another part equipped with Chong Die free end at the position of perforate.

Description of the drawings

The present invention is illustrated in greater detail now with reference to accompanying drawing, in the accompanying drawings：

Fig. 1 is provided with the sectional view of the breaker of the device with movable contact of the invention；

Fig. 2 illustrate in perspective view fixed contact therefor of the invention for a circuit/have movable contact Device component；

Fig. 3 illustrates the device with movable contact of the present invention with exploded perspective；

Fig. 4 is that the side-looking of the component of such fixed contact therefor/device with movable contact of the invention cuts Face figure, the proximal, side wall of holding part is cut；

Fig. 5 illustrate in perspective view and sub-component be inserted in contact bearing part；

Fig. 6 is the cross-sectional view for inserting the sub-component in contact bearing part；

Fig. 7 shows that the insertion contact during the spring loads stage marked by arrow holds with partial cutaway perspective view Sub-component in holder, the proximal, side wall of contact bearing part is cut as shown in Figure 4；

Fig. 8 shows the power on two ends that spring is applied to when spring is fixed to inside contact bearing part； And

Fig. 9 a and Fig. 9 b show the modification with electronic overload or short-circuit detecting device.

Specific embodiment

With reference to Fig. 1, the breaker 1 that there is shown with, the breaker here is provided with the insulation shell B of molding, traditionally includes Joystick 2, the joystick is connected to contact via mechanical lock 3 (because it does not constitute the present invention so being not explained in detail) Part bearing part 4, the contact bearing part 4 supports the movable contact 5 for being arranged to be used for being cooperated with fixed contact therefor 6.

The connection for being connected to circuit to be protected 7,8 is disposed with 6/ movable contact of the fixed contact therefor both sides of 5 pairs Device.Mechanical lock 3 transmits the movement of joystick 2.Thus, the joystick 2 be tilted to it in the housing can be all over the rotation of Jing Turn two ends in path, the two ends correspond to two stable positions, and each embodiment of described two stable positions connects A kind of state of contact element：I.e. or disconnect and at a distance from each other, or close and bear against and go up each other.

Mechanical lock 3 especially includes toggle joint type mechanism, and it allows for the movement for giving joystick 2 to pass to contact carrying Part 4 and movable contact 5.It is problematic in the line (for example：Current overload or short circuit) in the case of, detect (such as shape of device 9 Formula is the magnetic detection device of coil and the magnetic circuit with movable vane for the calorifics detection device and such as form of bimetal leaf) Actuating can interrupt the trigger of the balance of mechanical lock 3, and the mechanical lock then causes contact 5,6 to disconnect.

With reference to the fixed contact therefor of Fig. 2, including piece 17 ' and the terminal for being welded with the piece thereon (accompanying drawing mark is used in general manner Note 6 is indicated) it is located near the base portion of the housing B of molding, the free end of the fixed contact therefor is intended to be cooperated with attachment means 7.

Movable contact 5 has included that in addition support member 10 is in contact bearing part from the arm 16 of contact bearing part 4 Opposite side is projected, and the support member can be fixed in the base of housing B.The present invention relates more specifically to movable contact 5, it connects Contact element bearing part 4 and guarantee its rotation mechanism.The rotation is dual：The component of 4/ movable contact of contact bearing part 5 On the one hand can be rotatably movable and open position (as shown in FIG. 4) between in closing position (such as showing in fig. 2), On the other hand there is rotating against for contact bearing part 4 and movable contact 5, to guarantee the closing position shown in Fig. 2 in Contact force.

The dual rotation is realized relative to same rotation axis.Mechanism is overall to be shown in figure 3, it illustrates rotation On the one hand axle 11, the rotary shaft in the perforate 12 of insertion support member 10, is on the other hand inserted in the Part II of movable contact 5 In the coaxial perforate 13 realized in 15 reciprocity and symmetrical Liang Ge ears 14,14 '.Additionally, the movable contact 5 can in formation The end of the arm 16 of the Part I of dynamic contact 5 includes contact chip 17, and the contact chip 17 is intended to breasting and is arranged on fixed connecing Reciprocity contact chip 17 ' in contact element 6.Additionally, the arm 16 of movable contact 5 includes ribs 18, and for fixing protective cover The projection 19 of 20 (visible in fig. 2).The cover 20 is arranged in use in after short circuit to isolate in the case of there is electric arc and is hinged Mechanism, the spring being especially located inside contact bearing part 4.

Therefore the Part I of movable contact 5 includes the arm 16 of elongation, and in its end includes contact chip 17, separately One end then develops into Part II 15, and the Part II 15 is formed by the Liang Ge ears 14,14 ' equipped with perforation 13.Additionally, Realize these ears 14,14 ' interval with the rotation of the free end rotating contact equipped with perforation 12 of support member 10 including convex Piece 21,21 ', the lug is located relative to the perforate 13 of accommodating rotary shaft 11 and the relative part of arm 16.

In order to correctly guarantee rotating contact, relative to the current strength specification (calibres arranged for the type equipment D'intensit é de courant), the section 22 of support member 10 and especially its equipped with perforation 12 free end have Such width：The width is substantially equal to the distance for separating Liang Ge ears 14,14 '.

Two springs 23,23 ' also play Main Function in for the interval correct operation of rotating contact.These spirals Spring 23,23 ' is to allow to apply the torsionspring (as seen more fully below) of contact force first, but is divided each other From spiral winding allow these springs to also act as the effect of compression spring, and the applying effect on the outer surface of ear 14,14 ' Power is so that it is pressed against the rounding end of the section 22 of support member 10, formation rotating contact.

With reference to Fig. 5 and Fig. 6, the compression force especially more clearly shows.When movable contact 5, support member 10, rotation Axle 11 and spring 23,23 ' are assembled into so-called when being hinged sub-component, and the sub- hinge assembly is inserted into and is arranged on contact carrying In holding part 24 inside part 4.The holding part 24 with cylindrical outer shape includes radial opening, and the radial opening is on the one hand Arm 16 for making movable contact 5 passes through, is on the other hand used to pass through the section 22 of support member 10.The holding part is by axle Limited by two lateral sidewalls 25,25 ' on the 11 rotation axis directions embodied.The spiral winding of spring 23,23 ' is in the rotation axis Compressed between the two lateral sidewalls 25,25 ' and the exterior face of ear 14,14 ' on direction.Additionally, such as the sub-component two Shown in two arrows of side, the compression is in the moment reality that will be hinged in the holding part 24 of sub-component insertion contact bearing part 4 Existing.The direction of insertion of sub-component is illustrated by the 3rd arrow vertical with other two arrows.

Two springs 23,23 ' each include the end 26,26 ' with straight profile and crooked end 27,27 '.These ends Portion 26,26 '；27th, the ear 14,14 ' of 27 ' Part II 15 respectively with the surface of holding part 24 and from movable contact 5 dashes forward The lug 21,21 ' for going out cooperates.Thus, Fig. 4 shows the side view of the device with movable contact of the present invention, the side-looking Figure is cut to eliminate the side wall 25 of contact bearing part 4.

In the figure visible spring 23 is located such that its straight end being hinged when sub-component is inserted in holding part 24 The face 28 that the breasting of portion 26 is arranged for this and is orientated, the face is located in such part of contact bearing part 4：Allow mobile contact The perforate that the arm 16 of part 5 passes through is located in the part.In side, the opposite side of the vicinity of wall 25 ' shows the surface 28 ' of equity (see Fig. 5).

Holding part 24 in fact includes the symmetry relative to longitudinal mid-plane, by two sheet material structures for being shaped to crank Into movable contact 5 be also same：Each sheet material actually includes Part I and Part II, and the Part I is formed The arm 16 of elongation, at ear 14,14 ' places, the ear 14,14 ' is with parallel and orthogonal by being orientated with it for the Part II The profile that part separates, the part provides the half of the width in the space for separating the ear 14,14 ', support member 10 section 22 is inserted in the space.Movable contact 5 is formed by two symmetrical parts, and this is allowed in passing using under short-circuit conditions Electronic suction effect：Short circuit current is balanced in the two symmetrical parts, is passed through towards identical direction, and this tends to will be described Part is pressed on again on the contact of securing supports 10 interval.

As shown in figure 5, when being hinged sub-component and being introduced in the holding part 24 of contact bearing part 4, make spring 23, 23 ' crooked end 27,27 ' is free, to obtain result as shown in Figure 7.In this case, be hinged sub-component by Be inserted into well inside contact bearing part 4, however, crooked end 27,27 ' in the stage not against on any object. Last installation operation is these crooked ends is led to from ear 14,14 ' prominent lug 21,21 ' rears, with spring Torsion function in, in addition to the first breasting point that end 26,26 ' is supplied to by surface 28,28 ', provide described for spring The breasting point of lug 21, the second of 21 ' both sides and the 3rd.

The arrow for showing in the figure 7 shows：The direction of the stress of the crooked end 27,27 ' of spring is applied to, should Power leads to lug 21,21 ' rears with loading spring 23,23 ' by making the end 27,27 '.The result shows in the diagram, its Illustrate the crooked end 27 for being placed in the rear of lug 21.

Fig. 3 is back to, each side wall 25,25 ' includes the groove 29 with straight profile, and the groove guides in practice rotation The end of rotating shaft 11, the end can wherein with carrying functional clearance mobile.Connect being hinged sub-component and be inserted into During contact element bearing part inside, the end (see Fig. 5) that the external helicoid coil from spring 23,23 ' of axle 11 is projected then is directed into Until near the bottom in two equivalent grooves 29 realized in two side walls 25,25 '.The Jing of the one side of spring 23,23 ' By surface 28,28 ' bear against breasting point in holding part 24 and another aspect positioned at lug 21,21 ' is attached to, (therefore be attached to can Dynamic contact) crooked end 27, two breasting points at 27 ' places allow that sub-component will be hinged and be locked at the bottom of its holding part 24 Portion.The combination of the crooked end 27,27 ' of spring and the shape of lug 21,21 ' in fact causes to constitute in this place to be pivotally connected Portion, the pivot section acts so that movable contact 5 and rotary shaft 11 are maintained at well the bottom of two grooves 29 The position at place.

Relatively anti-two power (see two relative arrows) for showing in fig. 8 show：Spring 23,23 ' its The inside of holding part 24 of contact bearing part 4 is positioned in by single bearing and leaning portion of the side of end 26 and double bearing and leaning portions of the side of end 27 Torsion prestressing force when on its sub-component.The presence of the present invention is arranged to be used for the crooked end 27,27 ' with spring 23,23 ' The particular configuration of the lug 21,21 ' of cooperation allows to apply such double reaction plus：First is in the table perpendicular to holding part 24 It is (anti-on the other end 26,26 ' of spring 23,23 ' with being applied to by the wall on the surface 28,28 ' in the direction line in face 28,28 ' Active force resists relatively), second is being roughly parallel in the direction line of the axis of groove 31.

The assembling for being hinged word component for facilitating its installation in the holding part 24 of contact bearing part 4 is carried out as follows： Movable contact 5 is pre-assembled to then axle 11 is introduced the ear of support member 10 and movable contact 5 on securing supports 10 14th, in the perforate 12,13 of 14 ' respective pre-punching.Then, it is spring 23,23 ' pre-determined bits are every from ear 14,14 ' in axle 11 On two parts that side projects, the spring 23,23 ' and then compressed on the direction of the axis of the axle 11.Then, entirety is made It is joined in the holding part 24 of contact bearing part 4 via the part of the expansion of opening 30.The opening includes less upper of width Portion part 31, the upper part allows the opening that the part 22 of support member 10 passes through contact, for example, lead to the position shown in Fig. 4 In.

According to a kind of feasibility, the support member 10 is strict right based on made by two actually symmetrical sheet materials, constituting The sheet material of the part 22 of title and formation are installed with perforate 32, and (perforate allows it to be fixed to from attachment means 7,8 Cross-talk) sheet material be two almost symmetrical similar panels, the two sheet materials are turned down against each other, so that each half portion The perforate 32 of part is overlapped.

The example being illustrated in the accompanying drawings only is an operational feasibility of the present invention, and it includes other structures of support member 10 Make.Thus, in the example shown in Fig. 9 a and Fig. 9 b, different support members 10 ' in fact replace support member 10 by bar 22 ' Base portion and section 22, it is electronics and using the signal for coming from ring type current sensor 33 that the bar is intended in detection device When pass through the current sensor.

Additionally, all accompanying drawings show the device of one pole, the enforcement in the case of multipole is in an identical manner Come what is realized, while with the contact bearing part 4 including multiple holding parts 24 arranged side by side, each holding part can be received as above Described one is hinged sub-component.

Claims (9)

1. a kind of device with least one movable contact (5), the device be used for breaker type, for protection at least The protection equipment of one circuit, the protection equipment is arranged in insulation shell (B), and for each circuit is provided with fixed contact Part (6) and the movable contact (5) of the rotation including arm (16), at the free end of the arm (16) contact chip is fixed with (17), the arm (16) the closing position born against on the fixed contact therefor (16) and with the fixed contact therefor (6) phase Pivot between open position away from a distance,

- described device includes contact bearing part (4), the contact bearing part with for controlling one via mechanical lock (3) Or the joystick (2) of the position of multiple contacts (5) connects, the mechanical lock (3) is also shorted or current overload detector Part (9) is activated, and the movement of the lock (3) is passed to into each movable contact (5),

- contact the bearing part (4) includes the holding part (24) that quantity is quantity equal to the movable contact (5), often Individual holding part (24) is accommodating with lower member：

The other end (15) of the movable contact (5),

Relative to the support member (10) that the housing (B) is fixed, the support member (10) on the one hand allows the movable contact (5) Pivoted according to the connecting portion for allowing electric current to pass through, on the other hand allow attachment to protected circuit,

Axle (11), it passes through the other end (15) and the support member (10) of the movable contact (5) along pivot axis, And

Two torsion/compression helical springs (23,23 '), it is arranged to substantially coaxial with the axle (11) and connects positioned at pivot The both sides of socket part,

- the holding part (24) is with cylindrical outer shape and has opening (30), and the opening (30) allows introducing to be assembled into The component of sub-component is hinged, it is described to be hinged in the middle of longitudinal direction of the sub-component with the arm relative to the movable contact The profile of plane symmetry, each described holding part (24) also has the symmetry relative to the plane；

Described device is characterised by that each described holding part (24) includes the groove (29) with straight profile, these grooves In being implemented in the side wall (25,25 ') substantially vertical with the pivot axis of the holding part (24), and it is open to the opening (30) in, so that the end of the axle (11) is housed and guided with functional clearance；And be, spring (23,23 ') bag Substantially straight end (26,26 ') and crooked end (27,27 ') are included, the substantially straight end (26,26 ') is arranged to be used for Bear against in the inside face (28,28 ') of the holding part (24), formed and bear against the contact for the spring (23,23 ') Unique breasting region on part bearing part (4), the crooked end (27,27 ') be arranged to be used for being attached to lug (21, 21 '), the lug (21,21 ') from the end (15) of the movable contact (5) being arranged in the holding part (24) to The direction for side wall (25,25 ') projects, and the lug (21,21 ') is located at and the arm (16) phase relative to the pivot axis To that side, the crooked end (27,27 ') of the lug (21,21 ') and the spring (23,23 ') is constructed and takes To for so that the crooked end (27,27 ') of the spring (23,23 ') applies in this wise on the lug (21,21 ') Double reaction plus：First along the face (28,28 ') perpendicular to the holding part (24) direction, second along with the groove (29) axis direction that be substantially parallel.

2. the device with least one movable contact (5) according to previous item claim, it is characterised in that described Movable contact (5) is made up of two symmetrical elements, and each element includes Part I and Part II (15), this first Divide along symmetrical plane and extend to form the arm (16), the Part II side by side with the corresponding symmetric part of another element (15) formed by the ear (14,14 ') towards external bias, the symmetrical ear of the ear (14,14 ') and another element (14, 14 ') inner space with preset width is formed together, and the Part II (15) is installed with for opening that the axle (11) passes through Hole (13) and including the lug (21,21 ') for being arranged to be used for being cooperated with the spring (23,23 ').

3. the device with least one movable contact (5) according to previous item claim, it is characterised in that described Part I includes the ribs (18) with longitudinal profile.

4. the device with least one movable contact (5) according to any one of claim 2 and 3, its feature exists Include at least one projection (19) in, the Part I, its be used to fixing the sub-component positioned at the holding part (24) The protective cover (20) of internal component.

5. the device with least one movable contact (5) according to previous item claim, it is characterised in that described Support member (10) is formed by the part including the first section (22) and the second section, and first section (22) is with flat Profile, first section (22) be provided with pass through for the axle (11) perforate (12), with being substantially equal to the mobile contact The width of the preset width of the inner space of part (5) and with the face for being formed with face the inner space contact it is interval several What is constructed, and first section (22) is changed into the second section in the outside of the holding part (24), and second section is constructed It is the interface for being connected with detection device (9).

6. the device with least one movable contact (5) according to previous item claim, it is characterised in that described The interval part that the formation of the first section (22) is contacted with the movable contact (5) has circular profile.

7. the device with least one movable contact (5) according to any one of claim 5 and 6, its feature exists In, the interface includes extending the conducting rod of first section (22), and the conducting rod is intended to be passed through in ring type current sensor, And it is located at the connection interval of the free end equipped with the electric wire for being used to connect protected circuit in the exit of ring.

8. the device with least one movable contact (5) according to any one of claim 5 and 6, its feature exists In, first section (22) is extended by being substantially equal to the sheet material of the planar shape of the thickness of the section with thickness, and Perforate (32) is installed with, the perforate (32) passes through for making the attachment screw for being connected to detection device (9).

9. the device with least one movable contact (5) according to previous item claim, it is characterised in that described Support member (10) by least in first section relative to the movable contact the arm longitudinal mid-plane pair Two parts for claiming realize that each described part is extended by such part：The part have with equipped with the perforate (32) profile of the symmetrical shape of another part of overlapped free end at position.