CN105405724A - Small-sized reclosing circuit breaker - Google Patents
Small-sized reclosing circuit breaker Download PDFInfo
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- CN105405724A CN105405724A CN201510910049.5A CN201510910049A CN105405724A CN 105405724 A CN105405724 A CN 105405724A CN 201510910049 A CN201510910049 A CN 201510910049A CN 105405724 A CN105405724 A CN 105405724A
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- motor
- reclosing
- crank
- operating mechanism
- circuit breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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Abstract
The invention provides a small-sized reclosing circuit breaker. The small-sized reclosing circuit breaker comprises a current transformer, an electric leakage transformer, an operating mechanism and an electric reclosing mechanism mounted on a base; the electric reclosing mechanism comprises an integrated frame, a direct current electromotor mounted on the integrated frame in a side face fastening manner, and a worm wheel, a worm meshed with the worm wheel, a pinion fixedly connected with the worm wheel in a coaxial manner, a rack wheel and a dual-prismatic-pair slider-crank mechanism connected with a pull rod of the operating mechanism; the direct current electromotor is an actuator of the electric reclosing mechanism; the rotary shaft of the direct current electromotor is connected with the worm; the pinion is meshed with the rack wheel; the electric reclosing mechanism performs a circular motion under the turning drive of the direct current electromotor; and then the circular motion is converted into a straight reciprocating motion of the pull rod of the operating mechanism through the dual-prismatic-pair slider-crank mechanism so as to realize the re-trip, opening, and closing motions of the reclosing circuit breaker. The small-sized reclosing circuit breaker adopts the operating mechanism with a transversely arranged direct current micro-motor; the operating mechanism is integrated with the circuit breaker, so that the small-sized reclosing circuit breaker is high in integration, small and attractive in size, and safe and reliable.
Description
Technical field
The present invention relates to low-voltage intelligent circuit breaker manufacturing technology field; be specifically related to a kind of comprehensive residual current action breaker simultaneously with overload and short-circuit protection, overvoltage/undervoltage protection, earth leakage protective, automatic reclosing, communication function, particularly a kind of can the reclosing breaker popularizing the miniaturization required with intelligent grid being suitable for upgrade of rural power grids of safe and reliable automatic reclosing.
Background technology
Along with the development of low-voltage electrical apparatus and the universal of upgrade of rural power grids; traditional residual current action breaker can not meet the requirement of intelligent grid due to its function singleness; for improve electricity consumption high continuation and realize network management and remote monitoring, a kind of possess simultaneously overload and short-circuit protection, overvoltage/undervoltage protection, earth leakage protective, automatic reclosing, communication function comprehensive circuit breaker come into vogue gradually.For filling up the blank of upgrading of rural power grids demand fast and shortening the consideration of construction cycle, the most low-voltage circuit breaker product with automatic reclosing function at present, the mode combined is carried out in normal employing on existing structure basis with motor-operating mechanism, mainly define two types: a kind of for directly to increase motor-operating mechanism in combination on old type circuit breaker; It is another kind of for motor-operating mechanism is placed on breaker body in assembled mode.But, these existing autoreclose breakers all have employed alternating current machine as executive component, the common drawback that ubiquity complex structure, volume are larger, the breaking capacity of older generation's product is all not high yet, the first installs existing motor-operating mechanism additional on older generation's circuit breaker, make the volume of product comparatively large like this, especially on height dimension, and function is simple.The second directly adopts alternating current machine as executive component and the integrated breaker made by simple connecting rod; in fact such circuit breaker is not also suitable for the specific disconnected phase situation that such as circuit breaker is used in the workplace of three-phase and four-line; what alternating current machine adopted is A phase and the power supply in N phase; when A phase phase shortage suddenly; now circuit breaker detects that circuit is abnormal and needs tripping operation; but cause circuit breaker cannot trip protection because of not having alternating-current power supply to power, therefore its reliability and fail safe cannot ensure.
From project organization, in existing market mainly there is the unreasonable structure of following three aspects in existing procucts, and first aspect is most of volume that motor occupies motor-operating mechanism, make motor and mounting structure unreasonable.Second aspect is that the internal structure design of motor-operating mechanism is unreasonable, particularly its transmission mechanism, it needs speed change (being the speed being become by the transformation of speed of motor motor-operating mechanism to be suitable for), break-in (being the direction of the output shaft of the motor-operating mechanism that the direction transformation of the rotating shaft of motor is become to be suitable for), conversion (being the rotating manner of motor is transformed into the applicable linear-movable manner of motor-operating mechanism) three kinds of conversions, realize speed change, break-in, convert three kinds of conversions, need the mechanism of relative complex, the Miniaturization Design level of this mechanism determines the degree of miniaturization of motor-operating mechanism, and the degree of miniaturization of the concrete structure of existing motor-operating mechanism is unsatisfactory.The third aspect is the integral layout unreasonable structure of motor-operating mechanism, comprising the installation site of motor-operating mechanism and mounting structure, connection linkage structure between motor-operating mechanism and the operating mechanism of breaker body, cause the problem that breaker structure is not compact and integrated level is low.Universal along with the intelligent development of low-voltage electrical apparatus and upgrade of rural power grids, motor-operating mechanism and the circuit breaker height of being badly in need of solving miniaturized low-voltage circuit breaker be integrated, combine together and small and exquisite attractive in appearance, safe class is high, reclosing good reliability, breaking capacity are strong problem.
Summary of the invention
In order to overcome the defect of prior art, the object of the present invention is to provide small-sized reclosing breaker, adopt the novel recloser mechanism comprising DC motor, Worm gear mechanism, gear mechanism and double-movement-pair slider-crank mechanism, effectively reduce the volume of recloser mechanism, particularly significantly reduce its height dimension, optimize the layout structure of reclosing mechanism, ensure that automatic reclosing has reliability and fail safe simultaneously.
For achieving the above object, present invention employs following technical scheme.
Small-sized reclosing breaker, comprise pedestal 2, and installation current transformer 21 on the base 2, creepage mutual inductor 22, operating mechanism 23 and recloser mechanism, it is characterized in that: described recloser mechanism comprises integrated support 24, is arranged on the DC motor 1 on described integrated support 24 in side fastening mode, and worm gear 5, the worm screw 7 engaged with worm gear 5, the pinion 6 be coaxially fixedly connected with worm gear 5, gear wheel 9 and the double-movement-pair slider-crank mechanism that is connected with the pull bar of operating mechanism 23.Described DC motor 1 is the actuator of described recloser mechanism, the rotating shaft of DC motor 1 is connected with described worm screw 7, described pinion 6 engages with gear wheel 9, move in a circle under the rotation of described DC motor 1 drives, and the straight reciprocating motion of the pull bar of described operating mechanism 23 is converted to by described double-movement-pair slider-crank mechanism, realize the detaining again of reclosing breaker, the motion of separating brake, combined floodgate.
According to a kind of embodiment of the present invention: the crank 3 that the double-movement-pair slider-crank mechanism of described recloser mechanism comprises macro-axis 8, the moving member 4 be connected with the pull bar of operating mechanism 23 and is fixedly mounted on macro-axis 8, described gear wheel 9 is can the mode of clutch be arranged on macro-axis 8, crank 3 is connected with moving member 4 by the first moving sets, and moving member 4 is arranged on described integrated support 24 by the second moving sets.
According to further optimal way of the present invention: the first described moving sets comprises the chute 42 be arranged on moving member 4 and the slide block 31 be arranged on crank 3, described slide block 31 is arranged in chute 42 also to be formed and is slidably matched; The second described moving sets comprises the gathering sill on the sliding part 43 be arranged on moving member 4 and the track base 25 be arranged on integrated support 24, and described sliding part 43 inserts in this gathering sill also to be formed and is slidably matched.
According to further optimal way of the present invention: described moving member 4 is thin sheet form, which is provided with the connecting hole 41 be connected with the pull bar of operating mechanism, the chute 42 building the first moving sets, the sliding part 43 that builds the second moving sets.
According to further optimal way of the present invention: described crank 3 is thin sheet form, which is provided with the design of part fixing with macro-axis 8, and build the slide block 31 of the first moving sets, slide block 31 and macro-axis 8 depart from.
According to another kind of embodiment of the present invention: described DC motor 1 is the direct current micromotor of 5V, 12V or 24V supply voltage.
According to another embodiment of the present invention: described DC motor 1 is fixed on integrated support 24 in the mode of horizontally set, direct current machine machine 1 is horizontally set, but it is arranged on the left side of integrated support 24, also can be the right side of integrated support 24, or any side of integrated support 24.
According to another embodiment of the present invention: described DC motor 1 is fixed on integrated support 24 in the mode of horizontally set, and the axis direction of the rotating shaft of DC motor 1 is vertical with the moving direction of moving member 4.
According to another embodiment of the present invention: described reclosing mechanism is the module of the top being arranged on described current transformer 21 and creepage mutual inductor 22, and is fixed by screws on pedestal 2.
According to other embodiment of the present invention: described integrated support 24 comprises and is fixedly connected with integral and forms four foot supports and the flat board of estrade shape structure, and the footing of four described foot supports is fixedly connected with pedestal 2.
Accompanying drawing explanation
More clearly advantages and features of the invention can be found out from the description of accompanying drawing illustrated embodiment, wherein:
Fig. 1 is the perspective view of the reclosing breaker of miniaturization of the present invention.
Fig. 2 is the schematic perspective view of the recloser mechanism of the reclosing breaker shown in Fig. 1.
Fig. 3 is the schematic perspective view of another angle of the recloser mechanism of the reclosing breaker shown in Fig. 1.
Fig. 4 is the schematic perspective view of the DC motor of the reclosing breaker shown in exploded view 1, Worm gear mechanism, gear mechanism and the concrete structure of double-movement-pair slider-crank mechanism and the annexation between them thereof.
Embodiment
Below in conjunction with the embodiment that Fig. 1 to Fig. 4 provides, further illustrate the embodiment of the reclosing breaker of miniaturization of the present invention.The reclosing breaker of miniaturization of the present invention is not limited to the description of following examples.
See Fig. 1 to Fig. 4, the reclosing breaker of miniaturization of the present invention comprises the pedestal 2 of each parts for installing circuit breaker, and the current transformer 21 installed on the base 2, creepage mutual inductor 22, operating mechanism 23 and recloser mechanism, described recloser mechanism comprises integrated support 24, the DC motor 1 on described integrated support 24 is arranged in side fastening mode, and worm gear 5, the worm screw 7 engaged with worm gear 5, the pinion 6 be coaxially fixedly connected with worm gear 5, gear wheel 9 and the double-movement-pair slider-crank mechanism be connected with the pull bar of operating mechanism 23.Pedestal 2 and lid (not shown) form the casing that has length size, are installed in each parts of described low-voltage circuit breaker in casing.In existing reclosing breaker, recloser mechanism has plenty of and is arranged on described lid, has plenty of on the cap that is arranged between lid with pedestal, thus causes the height dimension of circuit breaker larger.The present invention adopts recloser mechanism installation mode on the base 2, substitutes existing cap, can effectively reduce the height space that shell cover structure needs with integrated support 24.Integrated support 24 can adopt small and exquisite component (iron plate, four foot supports) form, and overall structure can be made very compact.Current transformer 21, creepage mutual inductor 22 and operating mechanism 23 structure be installed on pedestal 2 can be adopted and be realized in a known manner, under normal circumstances, current transformer 21, creepage mutual inductor 22 and operating mechanism 23 are installed in the base plate (not shown) of pedestal 2.In existing recloser circuit breaker, particularly in split mounting type or fabricated structure, in order to not change the layout structure between original setting each parts on the base 2 as far as possible, have plenty of recloser organization establishes above operating mechanism, because the height dimension of operating mechanism itself is very large, so the significantly increase of the height dimension of circuit breaker will inevitably be caused, also the structural limitations owing to being subject to recloser mechanism had, recloser mechanism must be arranged near operating mechanism, but this setup probably needs the height dimension increasing circuit breaker because of the limitation in height by the parts near operating mechanism.The concrete structure of the integrated support 24 of recloser mechanism of the present invention as illustrated in fig. 1 and 2, it comprises four foot supports and flat board, four foot supports are fixedly connected with flat board integral and form estrade shape structure, the footing of four foot supports is fixedly connected with pedestal 2, and each parts of recloser mechanism are arranged on flat board.Obviously, such structure can make each parts of recloser mechanism highly be integrated in a very compact manner on integrated support 24, the pin of four foot supports can be seized every opportunity, not only the installed surface being used for fixing integrated support 24 on pedestal 2 can be reduced to minimum degree, and can make four foot supports and pedestal 2 be fixedly connected with the position that can not tie up original parts on pedestal 2, be beneficial to the miniaturization of circuit breaker entirety.
Described DC motor 1 is fixedly mounted on integrated support 24, concrete layout structure and mounting structure can have various ways, a kind of preferred mode as illustrated in fig. 1 and 2, described DC motor 1 is fixed on integrated support 24 in the mode of horizontally set, and the axis direction of the rotating shaft of DC motor 1 is vertical with the moving direction of moving member 4.Mounting structure is then be fixed on the flat board of integrated support 24 by the housing of DC motor 1 more specifically, can realize firmly being connected with flat board to make the housing of DC motor 1, prevent from the accident of DC motor 1 from installing to loosen, guarantee the reliable transmission of recloser mechanism.DC motor 1 is fixed on integrated support 24 in the mode of horizontally set, described horizontally set, refer to that the axis direction of the rotating shaft of DC motor 1 is parallel with dull and stereotyped direction of extension, as illustrated in fig. 1 and 2, make the radial direction of columned DC motor 1 with the short transverse (being also the short transverse of circuit breaker) of integrated support 24 parallel.Because the diameter of DC motor 1 is more much smaller than its axial height, as: a kind of axial height being applicable to the direct current machine of reclosing breaker is 45mm, and its diameter is only 28mm; Be applicable to an axial height 61.5mm for the direct current machine of reclosing breaker, and its diameter is only 37mm, therefore adopts the layout structure of DC motor 1 horizontally set, significantly can reduce the height dimension of circuit breaker.Because moving member 4 is arranged on the flat board of integrated support 24 by guide rail 241, therefore, the moving direction of moving member 4 is also parallel with dull and stereotyped direction of extension, so, described DC motor 1 is fixed on after on integrated support 24 in the mode of horizontally set, the axis direction of the rotating shaft of DC motor 1 and the moving direction of moving member 4 are in dull and stereotyped direction of extension together, namely between the axis direction of the rotating shaft of DC motor 1 and the moving direction of moving member 4, there is countless angle, therefore the axis direction of rotating shaft of DC motor 1 that provides of Fig. 1 and 2 and the moving direction vertical embodiment of moving member 4 are only a kind of preferred examples, its advantage is can the length of optimized breaker further, wide size.DC motor 1 of the present invention is the actuator of described recloser mechanism, the rotating shaft of DC motor 1 is connected with described worm screw 7, described pinion 6 engages with gear wheel 9, move in a circle under the rotation of described DC motor 1 drives, and the straight reciprocating motion of the pull bar of described operating mechanism 23 is converted to by described double-movement-pair slider-crank mechanism, realize the detaining again of reclosing breaker, the motion of separating brake, combined floodgate.
In order to reduce the height dimension of circuit breaker further, the length of further optimized breaker product simultaneously, wide size, a kind of preferred layout structure scheme as shown in Figure 1, described reclosing mechanism is positioned at the top of current transformer 21 and creepage mutual inductor 22, that is: first by DC motor 1, worm screw 7, worm gear 5, pinion 6, the parts such as gear wheel 9 and double-movement-pair slider-crank mechanism are installed to after on integrated support 24, again the footing of four foot supports of integrated support 24 is fixed on the base 2, and this fixedly makes the parts on integrated support 24 be positioned at the top (as shown in Figure 1) of current transformer 21 and creepage mutual inductor 22.
What the present invention adopted DC motor 1 is obvious with the advantage of the layout structure of motor horizontally set.First be the effect of in volumetric spaces (especially in height), to be applicable to the motor of 250A cage reclosing breaker, as adopted DC motor, its diameter is 28mm, according to alternating current motor, its diameter is 37mm, and both differ 9mm.Again to be applicable to the motor of 630A cage reclosing breaker, as adopted DC motor, its diameter is 37mm, and according to alternating current motor, its diameter is 61mm, and both differ 24mm.Second advantage improves reclosing reliability, because the power supply of alternating current motor can only be provided by the phase firewire in three-phase main circuit, if when open-phase fault occurs the live wire that lacks be just in time that phase for motor mutually, then alternating current motor cannot start reclosing; And the DC power supply of DC motor be directly get end of incoming cables three-phase firewire and be rectified into direct current, when running into phase shortage, as long as ensure the existence of any two-phase electricity, then motor still has Power supply, in addition, also owing to being front end power taking, therefore can not because of the separating brake of circuit breaker dead electricity.Be to adopt 24V and following direct current micromotor again, when manual operation without shock hazard, make product safer, and DC power supply energy consumption be low.Other advantage is, direct current micromotor rotating speed is fast, detains, separating brake, feed motion by still completing reclosing breaker quickly after slowing down again, and vibrate little, noise is low.The advantage had again is, the direct current micromotor of employing, through Precision Machining, can guarantee precision, and the drive assembly formed with gear set transmission more can realize electromechanical integration, can the desirable service quality characteristic ensureing product.In order to be conducive to the miniaturization of recloser mechanism further, and can play the advantage of DC motor 1 better, described DC motor 1 preferably adopts the direct current micromotor of 5V, 12V or 24V supply voltage.The power supply of DC motor 1 can be intrinsic from circuit breaker DC power supply access, also directly can get end of incoming cables power supply and obtain through over commutation, also not get rid of and adopt known means to configure separately the DC power supply of powering to DC motor 1.
The technological means adopted for realizing above-mentioned effect of the present invention is not only to adopt DC motor 1, but also is: the Optimal improvements of the integrally-built miniaturization of recloser mechanism, the overall structure of Optimal improvements and recloser mechanism being conducive to the layout structure in circuit breaker of the recloser mechanism of the miniaturization of circuit breaker make likely to adopt small, accurate DC motor 1.Because the starting characteristic of direct current micromotor and alternating current motor exist larger difference, if change the alternating current motor of existing reclosing breaker into DC motor, so its recloser mechanism cisco unity malfunction, if as the transmission mechanism for slowing down adopts single gear drive (comprising the motor of band mechanical reduction) mode, due to the restriction of its speed reducing ratio, the alternating current machine that output torque is larger must be adopted, for another example for the transmission mechanism being converted to movement is adopted known eccentric stiffener, because it needs larger actuating force ability smooth working, so also the alternating current machine that output torque is larger must be adopted.
Rotating respectively being in a known manner arranged on integrated support 24 adopted by described worm screw 7 and worm gear 5.The rotating shaft of DC motor 1 is connected with worm screw 7, and the structure of this connection can be adopted in a known manner, and as coupling, it can make described rotating shaft and worm screw 7 link.Worm screw 7 engages with worm gear 5, makes worm screw 7 drive worm gear 5 to rotate, and can obtain the larger torque-output characteristics of very large speed reducing ratio and worm gear 5 by this engagement.Worm gear 5 is coaxially fixedly connected with pinion 6, and namely worm gear 5 is coaxial with pinion 6, and worm gear 5 is relative with pinion 6 fixes linkage, and this concrete structure be coaxially fixedly connected with can be adopted in a known manner.Pinion 6 engages with gear wheel 9, makes pinion 6 drive gear wheel 9 to rotate, and again can obtain speed reducing ratio by this engagement.
The crank 3 that described double-movement-pair slider-crank mechanism comprises macro-axis 8, moving member 4 and is fixedly mounted on macro-axis 8, macro-axis 8 is adopted and is installed in rotation on integrated support 24 in a known manner, and gear wheel 9 is can the mode of clutch be arranged on macro-axis 8.Can the mode of clutch in this what is called, refer to that gear wheel 9 is sleeved on macro-axis 8, make the center of rotation of gear wheel 9 and the centres of macro-axis 8, and gear wheel 9 and macro-axis 8 can clutches, that is: under the state be separated with macro-axis 8 at gear wheel 9, gear wheel 9 and macro-axis 8 can relatively rotate and can not link, and remove drive connection between gear wheel 9 and macro-axis 8; Under the state that gear wheel 9 and macro-axis 8 close, gear wheel 9 and macro-axis 8 can not relatively rotate and can only link, and keep drive connection between gear wheel 9 and macro-axis 8.Realization can the known mounting structure of mode of clutch can have multiple, can realize from wherein selecting any one mode.
Described double-movement-pair slider-crank mechanism is the mechanism of the rectilinear movement rotation of crank 3 being converted to moving member 4, and the amount of being positioned at of moving member 4 becomes sine relation with the corner of crank 3.The feature of double-movement-pair slider-crank mechanism comprises two moving sets, wherein: the first moving sets is arranged between crank 3 and moving member 4, and namely crank 3 is connected with moving member 4 by the first moving sets; Second moving sets is arranged between moving member 4 and integrated support 24, and namely moving member 4 is arranged on integrated support 24 by the second moving sets.Here moving sets refers to the syndeton doing relative movement between two components, as: the first moving sets just refers to the syndeton between crank 3 and moving member 4, and this syndeton has crank 3 can the feature of movement on moving member 4; Second moving sets just refers to the syndeton between moving member 4 and integrated support 24, and this syndeton has moving member 4 can the feature of movement on integrated support 24.The concrete structure of moving sets can have various ways, the preferred mode of one of the first moving sets as shown in Figure 2 and Figure 4, the first described moving sets comprises the chute 42 be arranged on moving member 4, the slide block 31 be arranged on crank 3, and slide block 31 is arranged in chute 42 also to be formed and is slidably matched.Should understand, from the restriction of the above-mentioned principle of work and power about double-movement-pair slider-crank mechanism, in fact imply an important feature feature of this double-movement-pair slider-crank mechanism, be exactly that slide block 31 must depart from the center of rotation of crank 3 (i.e. the axis centre of macro-axis 8), be i.e. between the center of rotation of slide block 31 and crank 3, a segment distance must be had.The preferred mode of one of the second moving sets as shown in Figure 1 to Figure 3, gathering sill (not shown) on the track base 25 that the second described moving sets comprises the sliding part 43 be arranged on moving member 4, be arranged on integrated support 24, this sliding part 43 to insert in described gathering sill and is formed and is slidably matched.Moving member 4 is connected with the pull bar (not shown) of operating mechanism 23.
In order to reduce the height dimension of recloser mechanism further, moving member 4 and crank 3 can adopt thin plate-shaped structure.The preferred concrete structure of one of moving member 4 as shown in Figures 1 to 3, described moving member 4 is thin sheet form, which is provided with the connecting hole 41 be connected with the pull bar of operating mechanism, the chute 42 building the first moving sets, the sliding part 43 that builds the second moving sets.As shown in Figures 2 to 4, described crank 3 is thin sheet form to the preferred concrete structure of one of crank 3, and which is provided with the design of part fixing with macro-axis 8, and build the slide block 31 of the first moving sets, slide block 31 and macro-axis 8 depart from.
Below with reference to Fig. 1 to Fig. 4, further illustrate the reclosing course of work of the reclosing breaker of miniaturization of the present invention.
In recloser process, gear wheel 9 and macro-axis 8 are transformed into the state of conjunction, DC motor 1 is rotated under the control of the control system of circuit breaker, this rotating drive worm screw 7 is rotated, then worm gear 5 is driven to rotate, pinion 6 is driven to rotate again, this rotating drive gear wheel 9 rotates, and order about macro-axis 8 and rotate with gear wheel 9, the rotation of macro-axis 8 drives crank 3 to rotate, this rotation drives in the chute 42 of the slide block 31 on crank 3 on moving member 4 and slides, this slip drives moving member 4 to move, this moves and drives operating mechanism 23 should understand following various operating process in conjunction with above-mentioned explanation:
1) in electronic separating brake process, gear wheel 9 and macro-axis 8 are also transformed into the state of conjunction, with recloser mistake,
2) in closing by hand and manual brake separating process, gear wheel 9 and macro-axis 8 need be transformed into from state, the rotation of manual operation macro-axis 8 again, this rotation drives crank 3 to rotate, then drive in the chute 42 of the slide block 31 on crank 3 on moving member 4 and slide, this slip drives moving member 4 to move, and drives the pull bar of operating mechanism 23 to perform combined floodgate or sub-switching operation (for closing a floodgate, rotating towards the rightabout closed a floodgate is separating brake in the rotation towards a direction of macro-axis 8).
The foregoing is only preferred embodiment of the present invention, all technical equivalences made according to the claims in the present invention change and amendment, all should be considered as within covering scope of the present invention.
Claims (9)
1. small-sized reclosing breaker, comprise pedestal (2), and the current transformer (21) be arranged on pedestal (2), creepage mutual inductor (22), operating mechanism (23) and recloser mechanism, it is characterized in that: described recloser mechanism comprises integrated support (24), the DC motor (1) on described integrated support (24) is arranged in side fastening mode, and worm gear (5), the worm screw (7) engaged with worm gear (5), the pinion (6) be coaxially fixedly connected with worm gear (5), gear wheel (9) and the double-movement-pair slider-crank mechanism be connected with the pull bar of operating mechanism (23), the actuator that described DC motor (1) is described recloser mechanism, the rotating shaft of DC motor (1) is connected with described worm screw (7), described pinion (6) engages with gear wheel (9), move in a circle under the rotation of described DC motor (1) drives, this rotates through the straight reciprocating motion that described double-movement-pair slider-crank mechanism is converted to the pull bar of described operating mechanism (23), realizes the detaining again of reclosing breaker, the motion of separating brake, combined floodgate, the crank (3) that the double-movement-pair slider-crank mechanism of described recloser mechanism comprises macro-axis (8), the moving member (4) be connected with the pull bar of operating mechanism (23) and is fixedly mounted on macro-axis (8), described gear wheel (9) is can the mode of clutch be arranged on macro-axis (8), crank (3) is connected with moving member (4) by the first moving sets, and moving member (4) is arranged on described integrated support (24) by the second moving sets.
2. the reclosing breaker of miniaturization according to claim 1, is characterized in that: the direct current micromotor that described DC motor (1) is 5V, 12V or 24V supply voltage.
3. the reclosing breaker of miniaturization according to claim 1, is characterized in that: described DC motor (1) is fixed on integrated support (24) in the mode of horizontally set.
4. the reclosing breaker of miniaturization according to claim 1, it is characterized in that: described DC motor (1) is fixed on integrated support (24) in the mode of horizontally set, and the axis direction of the rotating shaft of DC motor (1) is vertical with the moving direction of moving member (4).
5. the reclosing breaker of miniaturization according to claim 1, it is characterized in that: described reclosing mechanism is the module of the top being arranged on described current transformer (21) and creepage mutual inductor (22), and is fixed by screws on pedestal (2).
6. the reclosing breaker of miniaturization according to claim 1, it is characterized in that: the first described moving sets comprises the chute (42) be arranged on moving member (4) and the slide block (31) be arranged on crank (3), described slide block (31) is arranged in chute (42) also to be formed and is slidably matched; The second described moving sets comprises the gathering sill on the sliding part (43) be arranged on moving member (4) and the track base (25) be arranged on integrated support (24), and described sliding part (43) inserts in this gathering sill also to be formed and is slidably matched.
7. the reclosing breaker of miniaturization according to claim 1, it is characterized in that: described moving member (4) is thin sheet form, which is provided with the connecting hole (41) be connected with the pull bar of operating mechanism, the chute (42) building the first moving sets, the sliding part (43) that builds the second moving sets.
8. the reclosing breaker of miniaturization according to claim 1, it is characterized in that: described crank (3) is thin sheet form, which is provided with the design of part fixing with macro-axis (8), and building the slide block (31) of the first moving sets, slide block (31) and macro-axis (8) depart from.
9. the reclosing breaker of miniaturization according to claim 1, it is characterized in that: described integrated support (24) comprises and is fixedly connected with integral and forms four foot supports and the flat board of estrade shape structure, and the footing of four described foot supports is fixedly connected with pedestal (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910049.5A CN105405724A (en) | 2015-12-10 | 2015-12-10 | Small-sized reclosing circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910049.5A CN105405724A (en) | 2015-12-10 | 2015-12-10 | Small-sized reclosing circuit breaker |
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| Publication Number | Publication Date |
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| CN105405724A true CN105405724A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510910049.5A Pending CN105405724A (en) | 2015-12-10 | 2015-12-10 | Small-sized reclosing circuit breaker |
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| CN (1) | CN105405724A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203536339U (en) * | 2013-11-21 | 2014-04-09 | 巨邦电气集团有限公司 | Switching-on and switching-off operating mechanism of breaker |
| CN104465253A (en) * | 2014-11-07 | 2015-03-25 | 浙江正泰电器股份有限公司 | Small-scale reclosure breaker |
-
2015
- 2015-12-10 CN CN201510910049.5A patent/CN105405724A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203536339U (en) * | 2013-11-21 | 2014-04-09 | 巨邦电气集团有限公司 | Switching-on and switching-off operating mechanism of breaker |
| CN104465253A (en) * | 2014-11-07 | 2015-03-25 | 浙江正泰电器股份有限公司 | Small-scale reclosure breaker |
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Application publication date: 20160316 |