CN101320634A - Monostable permanent magnet control mechanism with multiple force output air gaps - Google Patents
Monostable permanent magnet control mechanism with multiple force output air gaps Download PDFInfo
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- CN101320634A CN101320634A CNA2008101167336A CN200810116733A CN101320634A CN 101320634 A CN101320634 A CN 101320634A CN A2008101167336 A CNA2008101167336 A CN A2008101167336A CN 200810116733 A CN200810116733 A CN 200810116733A CN 101320634 A CN101320634 A CN 101320634A
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Abstract
The invention provides a multi-strength gap monostable permanent magnet driven mechanism. A permanent magnet of the driven mechanism is mounted between a fourth silicon-steel sheet group and a third silicon-steel sheet group of a fixed core, while B permanent magnet is mounted between the third silicon-steel sheet group and a second silicon-steel sheet group of the fixed core. Lower end surface of the fixed core is mounted on a connection board. The fixed core is put relatively to a moving core, and an on and off coil is sleeved on a lower central post of the fixed core. An on and off spring, which is sleeved on upper central post of the moving core, is located above the on and off coil. Upper end of a transmission rod orderly runs through a central hole of the connection board, a second central through hole of the fixed core and a first central through hole of the moving core, then runs through A pin hole, B pin hole, D pin hole and C pin hole by pins, and connection with one end of the transmission rod by the moving core is implemented. The multi-strength gap monostable permanent magnet driven mechanism of the invention is able to coordinate with power electronic device to perform millisecond movement, meet disconnection time demand of mechanical contact and implement quick on and off movement of an operation mechanism.
Description
Technical field
The present invention relates to a kind of permanent-magnet manipulating mechanism, more particularly say, be meant a kind of Monostable permanent magnetism operating mechanism that has more the strength crack that has.
Background technology
Mainly include arc control device, operating mechanism the electric switch (as circuit breaker, contactor etc.).Operating mechanism can be divided into electromagnetic type operating mechanism, permanent magnet drive mechanism, spring operating mechanism according to the difference of operation principle.Wherein, permanent magnet drive mechanism includes bi-stable permanent magnetism operating mechanism and Monostable permanent magnetism operating mechanism.
At number of patent application 02145538.4, on December 18 2002 applying date, " a kind of permanent-magnet manipulating mechanism " disclosed among the publication number CN1206687C.This permanent-magnet manipulating mechanism comprises drive link, armature, pole shoe, closing coil, fixed core, axle sleeve, bathtub construction upper end cover, bottom end cover, auxiliary spacer, has adopted bistable operation principle.This patent application can improve the pull characteristics of mechanism, overcomes the existing permanent magnet mechanism phenomenon not in place of closing a floodgate, in being applicable to, the low tension switch field.
At number of patent application 200610027689.2, on June 13 2006 applying date, a kind of " dynamic three coil type double-steady permanent magnetic operating mechanism " disclosed among the publication number CN1889214A.This permanent-magnet manipulating mechanism comprises moving iron core, permanent magnet, switching winding, switching winding, separating brake fixed core, combined floodgate fixed core, and upper end cover, bottom end cover, outer yoke, the bar of exerting oneself have adopted bistable operation principle.This invention has good power producing characteristics, can effectively improve opening velocity, reduces branch, closing operation energy consumption, has overcome shortcomings such as existing mechanism opening velocity is slow, power consumption is big.But this patent application is applicable to the situation of electric pressure height, moving stroke unshakable in one's determination long (greater than 4cm), and it is more excellent to make 40.5kV electric pressure vacuum circuit-breaker join the performance of permanent magnet mechanism, makes the vacuum circuit-breaker of 72.5kV electric pressure join permanent magnet mechanism and realizes easily.
At number of patent application 200710120485.8, on August 20 2007 applying date, a kind of " Monostable self-locking type air gas variable permanent magnet operation device " disclosed among the publication number CN101106026.This permanent-magnet manipulating mechanism mainly is made up of magnetic circuit system, drive system, block sytem and support system.This permanent-magnet manipulating mechanism comprises permanent magnet, inside and outside static iron core, solenoid, moving iron core, mandrel, lock collar, tripping spring, end cap, guide vane end stop, has adopted monostable operation principle.This patent application is branch, the closing speed of control switch contact better, reduces contact collision and spring, applicable to the high-pressure vacuum breaker of large opening, the high-tension circuit-breaker, particularly large opening of middle and high piezoelectricity device field of switches.
In mesolow electric switch field, exist the low problem of magnetic circuit space availability ratio for existing operating mechanism, make the volume of operating mechanism increase; Problems such as the operating mechanism moving component is many, manufacturing process complexity; And some permanent-magnet manipulating mechanisms that solve the rapidity problem of operating mechanism divide-shut brake action more are applicable to voltage levels.
Summary of the invention
In order to solve big, lower, the bulky defective of operating mechanism of magnetic flux utilance of existing permanent-magnet manipulating mechanism non-working-gap.The objective of the invention is to design a kind of high reliability, efficient energy-saving that is applicable to aviation field and mesolow electric switch field, ground, can realize the permanent-magnet manipulating mechanism of the electric switch of quick divide-shut brake action.This permanent-magnet manipulating mechanism can cooperate power electronic device to carry out the Millisecond action, satisfies the time requirement that mechanical contact disconnects.Match with permanent magnet and coil layout by design magnetic circuit, core construction, realize the quick divide-shut brake action of operating mechanism.
The present invention is a kind of Monostable permanent magnetism operating mechanism that has more the strength crack, and it includes moving (1), fixed core (2) unshakable in one's determination, divide-shut brake coil (3), tripping spring (4), drive link (5), A permanent magnet (8), B permanent magnet (9), connecting plate (6); A permanent magnet (8) is the identical rectangular shape of structure with B permanent magnet (9);
Moving (1) unshakable in one's determination is staggered relatively with fixed core (2), and between moving (1) unshakable in one's determination and the fixed core (2) A air gap (101), B air gap (102), C air gap (103) is arranged; A air gap (101) is positioned between the upper surface of the 4th silicon steel sheet group (22) of left side post (11) lower surface of moving unshakable in one's determination (1) and fixed core (2); B air gap (102) is positioned between the upper surface of the second silicon steel sheet group (23) of the right post (13) lower surface of moving unshakable in one's determination (1) and fixed core (2); C air gap (103) is positioned between the upper surface of following newel (22b) of last newel (14) lower surface of moving unshakable in one's determination (1) and fixed core (2);
Divide-shut brake coil (3) is sleeved on the following newel (22b) of fixed core (2), and the top of divide-shut brake coil (3) is placed with tripping spring (4), and tripping spring (4) is sleeved on the last newel (14) of moving (1) unshakable in one's determination;
The lower surface (22a) of fixed core (2) is installed on the connecting plate (6);
After the upper end of drive link (5) is passed first central through hole (16) of second central through hole (211) of centre bore (64), the fixed core (2) of connecting plate (6), moving (1) unshakable in one's determination in turn, adopt pin (7) to pass B pin-and-hole (12), the D pin-and-hole (51) on the drive link (5) of A pin-and-hole (15), the first silicon steel sheet group (1c) of the A compressing tablet (1a) on moving (1) unshakable in one's determination, C pin-and-hole (17) back of B compressing tablet (1b) realizes that moving (1) unshakable in one's determination is connected with an end of drive link (5);
Described moving iron core (1) is made up of A compressing tablet (1a), B compressing tablet (1b), the first silicon steel sheet group (1c), and A compressing tablet (1a) is identical with B compressing tablet (1b) structure; A compressing tablet (1a) is provided with A through hole (15a), B through hole (15b), C through hole (15c), A pin-and-hole (15); B compressing tablet (1b) is provided with G through hole (17a), H through hole (17b), I through hole (17c), C pin-and-hole (17); The first silicon steel sheet group (1c) is provided with first central through hole (16) on central axial direction, the first silicon steel sheet group (1c) is provided with D through hole (12a), E through hole (12b), F through hole (12c), B pin-and-hole (12); The first silicon steel sheet group (1c) places between A compressing tablet (1a) and the B compressing tablet (1b), and realizes that by pin and cooperating of through hole A compressing tablet (1a), B compressing tablet (1b) clamp the first silicon steel sheet group (1c);
Described fixed core (2) is made up of C compressing tablet (2a), D compressing tablet (2b), the second silicon steel sheet group (23), the 3rd silicon steel sheet group (24), the 4th silicon steel sheet group (21), and C compressing tablet (2a) is identical with D compressing tablet (2b) structure; C compressing tablet (2a) is provided with J through hole (201), K through hole (202), L through hole (203); D compressing tablet (2b) is provided with P through hole (207), Q through hole (208), R through hole (209); The second silicon steel sheet group (23) is provided with O through hole (206); The 3rd silicon steel sheet group (24) is provided with N through hole (205); The 4th silicon steel sheet group (21) is provided with M through hole (204), and is provided with second central through hole (211) along central axial direction; A permanent magnet (8) is installed between the left end (24b) of the right-hand member (21a) of the 4th silicon steel sheet group (21) of fixed core (2) and the 3rd silicon steel sheet group (24), and B permanent magnet (9) is installed between the right-hand member (24a) of the left end (23a) of the second silicon steel sheet group (23) of fixed core (2) and the 3rd silicon steel sheet group (24); The assembling of the permanent magnet and the second silicon steel sheet group (23), the 3rd silicon steel sheet group (24), the 4th silicon steel sheet group (21) forms the preform of fixed core (2); Preform places between C compressing tablet (2a) and the D compressing tablet (2b);
Described divide-shut brake coil (3) adopts and twine 50～5000 circle enamelled wires formation on square skeleton;
Described tripping spring (4) adopts conical spring;
Described drive link (5) is a square pole, and drive link (5) upper end is provided with D pin-and-hole (51), and drive link (5) lower end is provided with A connecting hole (52);
The horizontal center line of described connecting plate (6) is provided with centre bore (64), with coaxial A screwed hole (61), the B screwed hole (62) of being arranged with of centre bore (64).
The advantage that the present invention has the Monostable permanent magnetism operating mechanism that has more the strength crack is:
(1) in "on" position, only provide closing retention force by A permanent magnet 8, B permanent magnet 9, make that the present invention is a monostable configuration, save electric energy, there is not mechanical holding member, the reliability height;
(2) moving iron core 1 is designed to be inverted the chevron shape, fixed core 2 is designed to the chevron shape, reduced the non-working-gap of operating mechanism of the present invention, reduced leakage field, simultaneously, the type structure air gap of exerting oneself in mountain is three (A air gap 101, B air gap 102, C air gaps 103), it is bigger to exert oneself with single bistable state operating mechanism of core area more in the market, both can optimize the volume of operating mechanism, can improve magnetic flux utilance unshakable in one's determination again;
(3) drive link 5 is a non-magnet material, matches with moving unshakable in one's determination 1, fixed core 2, has reduced the friction that produced by side power effectively to the kinetic characteristic and the influence in mechanism's life-span;
(4) the silicon steel sheet group in moving iron core 1, the fixed core 2 adopts silicon steel plate packing to form, reduced the influence of eddy current effect significantly to operating mechanism divide-shut brake action rapidity, thereby improved the controllability and the sensitivity of operating mechanism, and helped the reducing of storage capacitor volume of divide-shut brake coil 3;
(5) placement location of A permanent magnet 8, B permanent magnet 9 matches with the shape of moving iron core 1, fixed core 2, has played the effect that magnetic amplifies, and has improved magnetic flux utilance unshakable in one's determination;
(6) divide-shut brake coil 3 adopts single coil structure, can save coil method, has dwindled winding volume, and it is dimensionally-optimised to be beneficial to operating mechanism; Simultaneously, in sectional area one timing of divide-shut brake coil 3, can regulate the operating mechanism responsiveness by adjusting the line footpath and the number of turn of divide-shut brake coil; Divide-shut brake coil 3 is sleeved on the arrangement on the following newel 22b of fixed core 2, is beneficial to the operating mechanism compact conformation;
(7) at magnetic path connection, adopt dynamic and static core construction of the present invention, can be long-pending and the scale of the dynamic and static core portion sectional area in permanent magnet place by the appropriate design cross-section of air gap, play corresponding magnetic amplification effect.The design can rationally utilize the electromagnetism saturation characteristic of dynamic and static iron core; make mechanism at corresponding branch or permanent magnetism confining force and soft, the controlled variation of electromagnetic force when closing the position; obtain desirable spring load characteristic; thereby the just-off speed in the time of both can satisfying separating brake; mechanical shock that causes owing to excessive electromagnetic force in the time of can avoiding closing a floodgate again and contact bounce, and owing to the designed permanent magnetism protection initial value loss of excitation that causes less than normal.Simultaneously, this kind operating mechanism design can be optimized dynamic and static iron core and divide-shut brake coil dimension, and makes the output mechanical power of operating mechanism be maximum;
In a word, operating mechanism of the present invention uses less moving component, obtained more satisfactory mechanism's actuating performance, and in course of action, the wearing and tearing of mechanical part are little, and failure rate is low, make things convenient for the technology manufacturing, be applicable to aviation and mesolow electric switch field, ground, realize quick divide-shut brake action, energy saving purposes.
Description of drawings
Fig. 1 is the external structure that the present invention has the Monostable permanent magnetism operating mechanism that has more the strength crack.
Structure chart when Fig. 2 is unassembled divide-shut brake coil, tripping spring with the Monostable permanent magnetism operating mechanism that has more the strength crack.
Fig. 3 is the relative position diagrammatic sketch of drive link and connecting plate.
Fig. 4 is structure chart unshakable in one's determination.
Fig. 4 A is the structure chart of silicon steel sheet group.
Fig. 4 B is the structure chart of B compressing tablet.
Fig. 5 is the structure chart of fixed core.
Fig. 5 A is the installation diagram of fixed core and permanent magnet.
Fig. 5 B is the structure chart of D compressing tablet.
Fig. 6 is the magnetic flux distribution schematic diagram of Monostable permanent magnetism operating mechanism when separating brake moves that the present invention has more the strength crack.
Fig. 7 is the structure chart that has the moving iron core of welding groove.
Fig. 8 is the structure chart that has the fixed core of welding groove.
Among the figure: 1. the moving 1a.A compressing tablet 1b.B compressing tablet 1c. first silicon steel sheet group unshakable in one's determination
101.A air gap 102.B air gap 103.C air gap 11. left side posts 13. the right posts
14. last newel 16. first central through hole 12a.D through hole 12b.E through hole 12c.F through holes
12.B pin-and-hole 15a.A through hole 15b.B through hole 15c.C through hole 15.A pin-and-hole
17a.G through hole 17b.H through hole 17c.I through hole 17.C pin-and-hole 301.A welding groove
302.B welding groove 303.C welding groove 304.D welding groove 305.E welding groove 306.F welding groove
2. fixed core 2a.C compressing tablet 2b.D compressing tablet 21. the 4th silicon steel sheet group 21a. right-hand member
22a. newel 23. second silicon steel sheet group 23a. left ends 24. the 3rd silicon steel sheet group under the 22b. of lower surface
24a. right-hand member 24b. left end 211. second central through hole 201.J through holes
202.K through hole 203.L through hole 204.M through hole 205.N through hole 206.O through hole
207.P through hole 208.Q through hole 209.R through hole 306.F welding groove 307.G welding groove
308.H welding groove 309.I welding groove 310.J welding groove 311.K welding groove 312.L welding groove
3. divide-shut brake coil 4. tripping springs 5. drive link 51.D pin-and-hole 52.A connecting holes
6. connecting plate 61.A screwed hole 62.B screwed hole 63. connecting holes 64. centre bores
7. pin 8.A permanent magnet 9.B permanent magnet
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, shown in Figure 2, the present invention is in a kind of being applicable to, the low-voltage electrical switch field, can realize fast the divide-shut brake action, have a Monostable permanent magnetism operating mechanism that has more the strength crack, this Monostable permanent magnetism operating mechanism includes moving unshakable in one's determination 1, fixed core 2, divide-shut brake coil 3, tripping spring 4, drive link 5, A permanent magnet 8, B permanent magnet 9, connecting plate 6.Moving unshakable in one's determination 1 is staggered relatively with fixed core 2, and between moving iron core 1 and the fixed core 2 A air gap 101, B air gap 102, C air gap 103 are arranged; Divide-shut brake coil 3 is sleeved on the following newel 22b of fixed core 2, and the top of divide-shut brake coil 3 is placed with tripping spring 4, and tripping spring 4 is sleeved on moving unshakable in one's determination 1 the last newel 14; The lower surface 22a of fixed core 2 is installed on the connecting plate 6; After the upper end of drive link 5 was passed second central through hole 211 of centre bore 64, the fixed core 2 of connecting plate 6, moving unshakable in one's determination 1 first central through hole 16 in turn, C pin-and-hole 17 backs of adopting pin 7 to pass B pin-and-hole 12, the D pin-and-hole 51 on the drive link 5, the B compressing tablet 1b of A pin-and-hole 15, the first silicon steel sheet group 1c of the A compressing tablet 1a on moving unshakable in one's determination 1 realized that moving unshakable in one's determination 1 is connected with an end of drive link 5.In the present invention, A air gap 101 is between the upper surface of the 4th silicon steel sheet group 22 of moving unshakable in one's determination 1 left side post 11 lower surfaces and fixed core 2; B air gap 102 is between the upper surface of the second silicon steel sheet group 23 of moving unshakable in one's determination 1 the right post 13 lower surfaces and fixed core 2; C air gap 103 between the upper surface of newel 14 lower surfaces on moving unshakable in one's determination 1 and the following newel 22b of fixed core 2, and when "on" position C air gap 103 to open distance be 0.01～0.2mm.
The architectural feature of each part among the present invention is as described below:
One, moving unshakable in one's determination 1
Shown in Fig. 4, Fig. 4 A, Fig. 4 B, moving unshakable in one's determination 1 is made up of A compressing tablet 1a, B compressing tablet 1b, the first silicon steel sheet group 1c, and A compressing tablet 1a is identical with B compressing tablet 1b structure; A compressing tablet 1a is provided with A through hole 15a, B through hole 15b, C through hole 15c, A pin-and-hole 15; B compressing tablet 1b is provided with G through hole 17a, H through hole 17b, I through hole 17c, C pin-and-hole 17; The first silicon steel sheet group 1c is provided with first central through hole, 16, the first silicon steel sheet group 1c and is provided with D through hole 12a, E through hole 12b, F through hole 12c, B pin-and-hole 12 on central axial direction; First central through hole 16 is used for drive link 5 to be passed through; The first silicon steel sheet group 1c places between A compressing tablet 1a and the B compressing tablet 1b, and realizes that by pin and cooperating of through hole A compressing tablet 1a, B compressing tablet 1b clamp the first silicon steel sheet group 1c.Be respectively equipped with a plurality of through holes on A compressing tablet 1a, B compressing tablet 1b, the first silicon steel sheet group 1c, and these a plurality of through holes in correspondence with each other, the correspondence of these a plurality of through holes helps pin in turn by A compressing tablet 1a, the first silicon steel sheet group 1c, B compressing tablet 1b are assembled together.Be without loss of generality, first pin after passing A through hole 15a on the A compressing tablet 1a, the D through hole 12a on the first silicon steel sheet group 1c, the G through hole 17a on the B compressing tablet 1b in turn is assembled together the left end of A compressing tablet 1a, the left end of the first silicon steel sheet group 1c, the left end of B compressing tablet 1b; Second pin after passing B through hole 15b on the A compressing tablet 1a, the E through hole 12b on the first silicon steel sheet group 1c, the H through hole 17b on the B compressing tablet 1b in turn is assembled together the middle part of A compressing tablet 1a, the middle part of the first silicon steel sheet group 1c, the middle part of B compressing tablet 1b; The 3rd pin after passing C through hole 15c on the A compressing tablet 1a, the F through hole 12c on the first silicon steel sheet group 1c, the I through hole 17c on the B compressing tablet 1b in turn is assembled together the right-hand member of A compressing tablet 1a, the right-hand member of the first silicon steel sheet group 1c, the right-hand member of B compressing tablet 1b;
In the present invention, pin 7 is realized drive link 5 to be connected with moving unshakable in one's determination 1 after passing A pin-and-hole 15, B pin-and-hole 12, D pin-and-hole 51, C pin-and-hole 17 in turn.
In the present invention, the thickness of A compressing tablet 1a, B compressing tablet 1b is 0.2～5mm, and the thickness of the first silicon steel sheet group 1c is 20～400mm.A compressing tablet 1a, B compressing tablet 1b adopt non-magnetic stainless steel sheet.
Two, fixed core 2
Shown in Fig. 5, Fig. 5 A, Fig. 5 B, fixed core 2 is made up of C compressing tablet 2a, D compressing tablet 2b, the second silicon steel sheet group 23, the 3rd silicon steel sheet group 24, the 4th silicon steel sheet group 21, and C compressing tablet 2a is identical with D compressing tablet 2b structure; C compressing tablet 2a is provided with J through hole 201, K through hole 202, L through hole 203; D compressing tablet 2b is provided with P through hole 207, Q through hole 208, R through hole 209; The second silicon steel sheet group 23 is provided with O through hole 206; The 3rd silicon steel sheet group 24 is provided with N through hole 205; The 4th silicon steel sheet group 21 is provided with M through hole 204, and is provided with second central through hole 211 along central axial direction; Second central through hole 211 is used for drive link 5 to be passed through.
In the present invention, the assembly relation of fixed core 2 is:
(1) parallel placement silicon steel sheet group
The 3rd silicon steel sheet group 24 is between the 4th silicon steel sheet group 21 and the second silicon steel sheet group 23, and the 4th silicon steel sheet group 21, the 3rd silicon steel sheet group 24, the second silicon steel sheet group, 23 keeping parallelisms, A permanent magnet 8 is clamped between the 4th silicon steel sheet group 21 and the 3rd silicon steel sheet group 24 1 sides, and B permanent magnet 9 is clamped between the 3rd silicon steel sheet group 24 opposite sides and the second silicon steel sheet group 23.
(2) permanent magnet is installed
A permanent magnet 8 is installed between the left end 24b of the right-hand member 21a of the 4th silicon steel sheet group 21 of fixed core 2 and the 3rd silicon steel sheet group 24, and B permanent magnet 9 is installed between the right-hand member 24a of the left end 23a of the second silicon steel sheet group 23 of fixed core 2 and the 3rd silicon steel sheet group 24.The assembling of permanent magnet and silicon steel sheet group (the 4th silicon steel sheet group 21, the 3rd silicon steel sheet group 24, the second silicon steel sheet group 23) forms the preform of fixed core 2.
In the present invention, the thickness of C compressing tablet 2a, D compressing tablet 2b is 0.2～5mm, and the thickness of the second silicon steel sheet group 23, the 3rd silicon steel sheet group 24, the 4th silicon steel sheet group 22 is 20～400mm.C compressing tablet 2a, D compressing tablet 2b adopt stainless steel substrates.
(3) compressing tablet clamps
Preform is placed between C compressing tablet 2a and the D compressing tablet 2b, and realize that by pin and cooperating of through hole C compressing tablet 2a and D compressing tablet 2b clamp preform.Be respectively equipped with a plurality of through holes on C compressing tablet 2a, D compressing tablet 2b, the second silicon steel sheet group 23, the 3rd silicon steel sheet group 24, the 4th silicon steel sheet group 21, and these a plurality of through holes in correspondence with each other, and the correspondence of these a plurality of through holes helps pin in turn by C compressing tablet 2a, preform, D compressing tablet 2b are assembled together.Be without loss of generality, the left end that the 4th pin passes behind J through hole 201 on the C compressing tablet 2a, the M through hole 204 on the 4th silicon steel sheet group 21, the P through hole 207 on the D compressing tablet 2b in turn with the left end of C compressing tablet 2a, the 4th silicon steel sheet group 21, D compressing tablet 2b is assembled together; The middle part that the 5th pin passes behind K through hole 202 on the C compressing tablet 2a, the N through hole 205 on the 3rd silicon steel sheet group 24, the Q through hole 208 on the D compressing tablet 2b in turn with the middle part of C compressing tablet 2a, the 3rd silicon steel sheet group 24, D compressing tablet 2b is assembled together; The right-hand member that the 6th pin passes behind L through hole 203 on the C compressing tablet 2a, the O through hole 206 on the second silicon steel sheet group 23, the R through hole 209 on the D compressing tablet 2b in turn with the right-hand member of C compressing tablet 2a, the second silicon steel sheet group 23, D compressing tablet 2b is assembled together.
Three, the divide-shut brake coil 3
Referring to shown in Figure 1, divide-shut brake coil 3 adopts and twine 50～5000 circle enamelled wires formation on square skeleton, and divide-shut brake coil 3 is sleeved on the following newel 22b of fixed core 2, and coil rack is fixed on the fixed core 2 by the riveted joint mode.
Four, tripping spring 4
Referring to shown in Figure 1, tripping spring 4 adopts conical spring (or looking concrete the designed suitable type spring of use occasion), and spring directly is 0.2～6mm, and tripping spring 4 is sleeved on moving unshakable in one's determination 1 the newel 14, and the lower end is by the coil rack supporting of divide-shut brake coil 3.
Five, drive link 5
Referring to shown in Figure 3, drive link 5 is a square pole, and the upper end of drive link 5 is provided with D pin-and-hole 51, and the lower end of drive link 5 is provided with A connecting hole 52, A connecting hole 52 can be used for that operating mechanism of the present invention and other are performed mechanism to be realized being connected, as being connected with vacuum interrupter by auxiliary body.Drive link 5 adopts non-magnet material (as 1Cr18Ni9Ti) processing and fabricating in the present invention.
Six, connecting plate 6
Referring to shown in Figure 3, the horizontal center line of connecting plate 6 is provided with centre bore 64, centre bore 64 is used for drive link 5 to be passed through, with centre bore 64 coaxial A screwed hole 61, the B screwed holes 62 of being arranged with, the design of A screwed hole 61, B screwed hole 62 is the installations that realize fixed core 2 and connecting plate 6 in order to match with screwed hole (not shown) that the lower surface 22a of fixed core 2 is provided with by screw.
Seven, the A permanent magnet 8
Shown in Fig. 3, Fig. 5, Fig. 5 A, A permanent magnet 8 is a rectangular shape.A permanent magnet 8 is installed between the left end 24b of the right-hand member 21a of the 4th silicon steel sheet group 21 of fixed core 2 and the 3rd silicon steel sheet group 24.In the present invention, it is identical that the face size of the face size of the size of A permanent magnet 8 and the right-hand member 21a of the 4th silicon steel sheet group 21, the left end 24b of the 3rd silicon steel sheet group 24 keeps, and the face size of the right-hand member 21a of the 4th silicon steel sheet group 21 is identical with the face size maintenance of the left end 24b of the 3rd silicon steel sheet group 24.A permanent magnet 8 is identical with B permanent magnet 9 structures.
Eight, the B permanent magnet 9
Shown in Fig. 3, Fig. 5, Fig. 5 A, B permanent magnet 9 is a rectangular shape.B permanent magnet 9 is installed between the right-hand member 24a of the left end 23a of the second silicon steel sheet group 23 of fixed core 2 and the 3rd silicon steel sheet group 24.In the present invention, it is identical that the face size of the face size of the size of B permanent magnet 9 and the left end 23a of the second silicon steel sheet group 23, the right-hand member 24a of the 3rd silicon steel sheet group 24 keeps, and the face size of the left end 23a of the second silicon steel sheet group 23 is identical with the face size maintenance of the right-hand member 24a of the 3rd silicon steel sheet group 24.B permanent magnet 9 is identical with A permanent magnet 8 structures.A permanent magnet 8 adopts same polarity staggered relatively with B permanent magnet 9, promptly can be that N is extremely relative, also can be that S is extremely relative.
Magnetic flux distribution (referring to shown in Figure 6) when separating brake moves, A permanent magnet 8 will produce the A magnetic flux, and B permanent magnet 9 will produce the B magnetic flux.Flow through the separating brake exciting current in the divide-shut brake coil 3 of permanent-magnet manipulating mechanism, at this moment A separating brake magnetic flux 3a, the B separating brake magnetic flux 3b that produces in the divide-shut brake coil 3; 3a is opposite with the direction of A magnetic flux for A separating brake magnetic flux, and 3b is opposite with the direction of B magnetic flux for B separating brake magnetic flux, makes moving iron core 1 be subjected to the permanent magnetism confining force and weakens.When moving 1 initial electromagnetic force that is subjected to unshakable in one's determination and tripping spring counter-force (tripping spring 4 provides) sum a half greater than the permanent magnet confining force, moving 1 beginning quick acting switching-off action unshakable in one's determination, preceding half section electromagnetic force in the separating brake action is bigger, guaranteed moving unshakable in one's determination 1 express delivery action request, electromagnetic force reduces subsequently, and moving unshakable in one's determination 1 mainly finishes the separating brake action under tripping spring 4 effects.
Referring to shown in Figure 7, also can adopt the argon arc welding manner to link together between moving unshakable in one's determination 1 A compressing tablet 1a, B compressing tablet 1b, the first silicon steel sheet group 1c.Promptly be provided with B welding groove 302, C welding groove 303 in moving unshakable in one's determination 1 upper surface, moving unshakable in one's determination 1 left side is provided with A welding groove 301, moving unshakable in one's determination 1 right side is provided with D welding groove 304, and the right and left of moving unshakable in one's determination 1 last newel 14 is respectively equipped with E welding groove 305, F welding groove 306.
Referring to shown in Figure 8, also can adopt the argon arc welding manner to link together between the C compressing tablet 2a of fixed core 2, D compressing tablet 2b, the second silicon steel sheet group 23, the 3rd silicon steel sheet group 24, the 4th silicon steel sheet group 21.Promptly be provided with K welding groove 311, L welding groove 312 at the lower surface of fixed core 2 22a, the left side of fixed core 2 is provided with G welding groove 307, the right side of fixed core 2 is provided with H welding groove 308, and the right and left of the following newel 22b of fixed core 2 is respectively equipped with I welding groove 309, J welding groove 310.
Monostable permanent magnet control mechanism with multiple force output air gaps of the present invention, separating brake process be divide-shut brake coil 3 electric, weaken A permanent magnet 8, B permanent magnet 9 and be applied to confining force between moving unshakable in one's determination 1, the fixed core 2, tripping spring 4 promotes moving 1 motion unshakable in one's determination, finishes the separating brake process.Divide-shut brake coil 3 dead electricity subsequently, moving unshakable in one's determination 1 remains on the separating brake position by tripping spring 4.Making process and separating brake process are inverse process.Mechanism is stable, shock-resistant when adhesive and disjunction.Divide-shut brake coil 3 is only charged in reaching by separating brake → making process by combined floodgate → separating brake process, in not power consumption of stable position, saves electric energy, does not have mechanical maintaining body, the reliability height.When permanent magnet mechanism of the present invention and vacuum switch combination, can make full use of the directly advantage of moving dock of vacuum switch, with the load characteristic no-float of vacuum switch.Especially for close in the pass of capacitor group, shunt reactor cut-off or the pass of transformer is closed and is cut-off and occasions such as fault current are closed in the pass, use selects the QA divide-shut brake performance of phase divide-shut brake technology and operating mechanism to match, the preceding open-circuit line of the current over-zero of can realizing shoving, reduce the arcing time, prolong the electric life of contact, and then improve the connecting-disconnecting function of electric switch.
The designed operation principle of the present invention with the mountain type Monostable permanent magnetism operating mechanism that has more the strength crack, at gate-dividing state: the working gas gap (A air gap 101, B air gap 102, C air gap 103) between moving unshakable in one's determination 1, the fixed core 2 reaches maximum position, no current flows through in the divide-shut brake coil 3, this moment, the counter-force of tripping spring 4 made unshakable in one's determination 1 to remain on the separating brake position because the permanent magnetism confining force that permanent magnet (A permanent magnet 8, B permanent magnet 9) produces is less; Feed motion: flow through the combined floodgate exciting current in the divide-shut brake coil 3 of permanent-magnet manipulating mechanism, the combined floodgate magnetic flux that produces in the divide-shut brake coil 3 is through the magnetic circuit of moving iron core 1, working gas gap, fixed core 2 and divide-shut brake coil 3 formations at this moment, make moving unshakable in one's determination 1 confining force that is closed a floodgate increase, when moving unshakable in one's determination 1 closing retention force that is subjected to during greater than the counter-force of tripping spring 4, moving 1 beginning feed motion unshakable in one's determination.Preceding half section permanent magnetism confining force at feed motion is less, and moving unshakable in one's determination 1 mainly finishes feed motion under the electromagnetic force effect of divide-shut brake coil; "on" position: after moving iron core 1 arrived closing position, no current passed through in the divide-shut brake coil 3, and the main permanent magnetism confining force that is produced by permanent magnet overcomes tripping spring 4 counter-forces and finishes the maintenance of closing a floodgate; Separating brake action: flow through the separating brake exciting current in the divide-shut brake coil 3 of permanent-magnet manipulating mechanism, the separating brake magnetic flux that produces in the divide-shut brake coil 3 is through divide-shut brake coil 3 at this moment, fixed core 2, working gas gap and moving unshakable in one's determination 1 magnetic circuit that constitutes, make moving 1 closing retention force that is subjected to unshakable in one's determination reduce, when moving 1 separating brake electromagnetic force that is subjected to unshakable in one's determination and tripping spring counter-force sum a half greater than the permanent magnet confining force, moving 1 beginning quick acting switching-off action unshakable in one's determination, separating brake electromagnetic force at preceding half section divide-shut brake coil of separating brake action is bigger, guaranteed moving unshakable in one's determination 1 quick acting requirement, the separating brake electromagnetic force of divide-shut brake coil reduces subsequently, and moving unshakable in one's determination 1 mainly finishes the separating brake action under tripping spring 4 effects.
Claims (6)
1, a kind of Monostable permanent magnetism operating mechanism that has more the strength crack is characterized in that: include moving (1), fixed core (2) unshakable in one's determination, divide-shut brake coil (3), tripping spring (4), drive link (5), A permanent magnet (8), B permanent magnet (9), connecting plate (6); A permanent magnet (8) is the identical rectangular shape of structure with B permanent magnet (9);
Moving (1) unshakable in one's determination is staggered relatively with fixed core (2), and between moving (1) unshakable in one's determination and the fixed core (2) A air gap (101), B air gap (102), C air gap (103) is arranged; A air gap (101) is positioned between the upper surface of the 4th silicon steel sheet group (22) of left side post (11) lower surface of moving unshakable in one's determination (1) and fixed core (2); B air gap (102) is positioned between the upper surface of the second silicon steel sheet group (23) of the right post (13) lower surface of moving unshakable in one's determination (1) and fixed core (2); C air gap (103) is positioned between the upper surface of following newel (22b) of last newel (14) lower surface of moving unshakable in one's determination (1) and fixed core (2);
Divide-shut brake coil (3) is sleeved on the following newel (22b) of fixed core (2), and the top of divide-shut brake coil (3) is placed with tripping spring (4), and tripping spring (4) is sleeved on the last newel (14) of moving (1) unshakable in one's determination;
The lower surface (22a) of fixed core (2) is installed on the connecting plate (6);
After the upper end of drive link (5) is passed first central through hole (16) of second central through hole (211) of centre bore (64), the fixed core (2) of connecting plate (6), moving (1) unshakable in one's determination in turn, adopt pin (7) to pass B pin-and-hole (12), the D pin-and-hole (51) on the drive link (5) of A pin-and-hole (15), the first silicon steel sheet group (1c) of the A compressing tablet (1a) on moving (1) unshakable in one's determination, C pin-and-hole (17) back of B compressing tablet (1b) realizes that moving (1) unshakable in one's determination is connected with an end of drive link (5);
Described moving iron core (1) is made up of A compressing tablet (1a), B compressing tablet (1b), the first silicon steel sheet group (1c), and A compressing tablet (1a) is identical with B compressing tablet (1b) structure; A compressing tablet (1a) is provided with A through hole (15a), B through hole (15b), C through hole (15c), A pin-and-hole (15); B compressing tablet (1b) is provided with G through hole (17a), H through hole (17b), I through hole (17c), C pin-and-hole (17); The first silicon steel sheet group (1c) is provided with first central through hole (16) on central axial direction, the first silicon steel sheet group (1c) is provided with D through hole (12a), E through hole (12b), F through hole (12c), B pin-and-hole (12); The first silicon steel sheet group (1c) places between A compressing tablet (1a) and the B compressing tablet (1b), and realizes that by pin and cooperating of through hole A compressing tablet (1a), B compressing tablet (1b) clamp the first silicon steel sheet group (1c);
Described fixed core (2) is made up of C compressing tablet (2a), D compressing tablet (2b), the second silicon steel sheet group (23), the 3rd silicon steel sheet group (24), the 4th silicon steel sheet group (21), and C compressing tablet (2a) is identical with D compressing tablet (2b) structure; C compressing tablet (2a) is provided with J through hole (201), K through hole (202), L through hole (203); D compressing tablet (2b) is provided with P through hole (207), Q through hole (208), R through hole (209); The second silicon steel sheet group (23) is provided with O through hole (206); The 3rd silicon steel sheet group (24) is provided with N through hole (205); The 4th silicon steel sheet group (21) is provided with M through hole (204), and is provided with second central through hole (211) along central axial direction; A permanent magnet (8) is installed between the left end (24b) of the right-hand member (21a) of the 4th silicon steel sheet group (21) of fixed core (2) and the 3rd silicon steel sheet group (24), and B permanent magnet (9) is installed between the right-hand member (24a) of the left end (23a) of the second silicon steel sheet group (23) of fixed core (2) and the 3rd silicon steel sheet group (24); The assembling of the permanent magnet and the second silicon steel sheet group (23), the 3rd silicon steel sheet group (24), the 4th silicon steel sheet group (21) forms the preform of fixed core (2); Preform places between C compressing tablet (2a) and the D compressing tablet (2b);
Described divide-shut brake coil (3) adopts and twine 50～5000 circle enamelled wires formation on square skeleton;
Described tripping spring (4) adopts conical spring;
Described drive link (5) is a square pole, and drive link (5) upper end is provided with D pin-and-hole (51), and drive link (5) lower end is provided with A connecting hole (52);
The horizontal center line of described connecting plate (6) is provided with centre bore (64), with coaxial A screwed hole (61), the B screwed hole (62) of being arranged with of centre bore (64).
2, the mountain type Monostable permanent magnetism operating mechanism with two air gaps of exerting oneself according to claim 1 is characterized in that: C air gap (103) opens apart from being 0.01～0.2mm when "on" position.
3, the mountain type Monostable permanent magnetism operating mechanism with two air gaps of exerting oneself according to claim 1, it is characterized in that: the thickness of A compressing tablet (1a), B compressing tablet (1b) is 0.2～5mm, and the thickness of the first silicon steel sheet group (1c) is 20～400mm.
4, the mountain type Monostable permanent magnetism operating mechanism with two air gaps of exerting oneself according to claim 1, it is characterized in that: the thickness of C compressing tablet (2a), D compressing tablet (2b) is 0.2～5mm, and the thickness of the second silicon steel sheet group (23), the 3rd silicon steel sheet group (24), the 4th silicon steel sheet group (21) is 20～400mm.
5, the mountain type Monostable permanent magnetism operating mechanism with two air gaps of exerting oneself according to claim 1, it is characterized in that: the spring of tripping spring (4) directly is 0.2～6mm.
6, the mountain type Monostable permanent magnetism operating mechanism with two air gaps of exerting oneself according to claim 1 is characterized in that: A permanent magnet (8) adopts same polarity staggered relatively with B permanent magnet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101167336A CN101320634A (en) | 2008-07-16 | 2008-07-16 | Monostable permanent magnet control mechanism with multiple force output air gaps |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101167336A CN101320634A (en) | 2008-07-16 | 2008-07-16 | Monostable permanent magnet control mechanism with multiple force output air gaps |
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| CN101320634A true CN101320634A (en) | 2008-12-10 |
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| CNA2008101167336A Pending CN101320634A (en) | 2008-07-16 | 2008-07-16 | Monostable permanent magnet control mechanism with multiple force output air gaps |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441045A (en) * | 2013-09-10 | 2013-12-11 | 沈阳工业大学 | Novel intelligent breaker based on two-phase magnetic material |
| CN103970028A (en) * | 2014-04-29 | 2014-08-06 | 国家电网公司 | Motion characteristic joint simulation model of permanent magnet operating mechanism breaker and method of motion characteristic joint simulation model of permanent magnet operating mechanism breaker |
| CN113782353A (en) * | 2021-09-15 | 2021-12-10 | 福州大学 | Novel CPS rotary electromagnetic operating mechanism and working method thereof |
-
2008
- 2008-07-16 CN CNA2008101167336A patent/CN101320634A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441045A (en) * | 2013-09-10 | 2013-12-11 | 沈阳工业大学 | Novel intelligent breaker based on two-phase magnetic material |
| CN103970028A (en) * | 2014-04-29 | 2014-08-06 | 国家电网公司 | Motion characteristic joint simulation model of permanent magnet operating mechanism breaker and method of motion characteristic joint simulation model of permanent magnet operating mechanism breaker |
| CN113782353A (en) * | 2021-09-15 | 2021-12-10 | 福州大学 | Novel CPS rotary electromagnetic operating mechanism and working method thereof |
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