CN102412086A - Fusing phase-lacking protection fuse composite disconnector - Google Patents
Fusing phase-lacking protection fuse composite disconnector Download PDFInfo
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- CN102412086A CN102412086A CN2011102099588A CN201110209958A CN102412086A CN 102412086 A CN102412086 A CN 102412086A CN 2011102099588 A CN2011102099588 A CN 2011102099588A CN 201110209958 A CN201110209958 A CN 201110209958A CN 102412086 A CN102412086 A CN 102412086A
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Abstract
The invention relates to a fusing phase-lacking protection fuse composite disconnector. The fusing phase-lacking protection fuse composite disconnector comprises a stripped disconnector, and a tripping device; the stripped disconnector comprises a disconnector base and a disconnector cover; the other side of the disconnector base is provided with a fuse cabin; a fuse clamping seat is arranged in the fuse cabin; three fuses are arranged on the fuse clamping seat from top to bottom; the trapping device comprises a circuit board, a tripping device shell and a tripping device base; the tripping device shell is buckled on the other side of the tripping device base; the circuit board is arranged in a cavity which is formed between the tripping device shell and the tripping device base; an energization demagnetization permanent magnet is arranged below the tripping device shell; one side of the energization demagnetization permanent magnet is provided with a suction disc which is connected with a tension spring; and the tension spring is connected with the fuse cabin through a tripping ripping bar. The tripping device which is developed by the invention is arranged at the upper end of the stripped disconnector in a vertical structure mode to ensure the tipping device and the stripped disconnector are integrated and the widths are consistent; and the fusing phase-lacking protection fuse composite disconnector is convenient to install and solves that an installation structure is contradictory and practicability is low.
Description
Technical field
The present invention relates to low-voltage circuit separated time electric power system field, relate in particular to the compound isolating switch of a kind of fusing open-phase protection type fuse.
Background technology
Fuse disconnecting switch is a kind of switch of power consumption equipment being protected through fusible core, and that this switch requires in use is deciliter simple, rapidly.Common fuse disconnecting switch generally includes the base that fixed contact is installed and the loam cake that moving contact is installed, and loam cake is hinged through a connector and base, the rotation realization switch through loam cake deciliter.There is following shortcoming mostly in the fuse disconnecting switch of existing structure:
1, says from mounting structure: also can reach fuse blows open-phase protection function behind other electric component if the load fuse isolating switch of present like product is arranged in pairs or groups in addition; But width is all bigger; Circuit is very complicated in the power distribution cabinet; Cost is too high, and there is contradiction in the collocation of each element, and after many circuits are installed whole power distribution cabinet volume is increased does not have practicality.
2, say from the function of fuse blows open-phase protection: the fuse load-break switch of like product does not all have the open-phase protection function after the fuse blows in the market; So if the fusing of breaking down is mutually in use arranged; And other two continuation power supply mutually; Cause the power supply of electrical network phase shortage, its consequence is that three phase electric machine burns out because of the phase shortage running.
3, from time of open-phase protection: the low-pressure electronic equipment product that can independently accomplish the open-phase protection function in the market is thermal relay and circuit breaker.The open-phase protection function of these two kinds of electrical equipment; All be to adopt two kinds of expanded by heating coefficient different metallic element materials to glue to force together; Because of the difference of the coefficient of expansion, the principle that promotes the contact disjunction that bends achieves the goal after being heated, so reaction is slow; Be about operate time 20 seconds, and be easy to cause motor burning.But shorten operate time and cause the circuit breaker misoperation again easily.
4, the contact of reliability fuse switch in the market from operation all is the metal stamping bending and molding; This moulding process contact pressure is inaccurate; So and can only a slice realize that 1-2 some contact contact pressure must be big; Do not advance the virtual connection heating but can cause fuse to be inserted, if the too little fuse virtual connection heating of pressure is unstable.
Summary of the invention
The purpose of this invention is to provide the compound isolating switch of a kind of fusing open-phase protection type fuse, to overcome the above-mentioned deficiency that present prior art exists.
The objective of the invention is to realize through following technical scheme:
The compound isolating switch of a kind of fusing open-phase protection type fuse comprises bar shaped isolating switch and release, and said bar shaped isolating switch comprises switch support and switch cover; One side of switch support is provided with switch cover, and the opposite side of switch support is provided with the fuse cabin, and the inside in fuse cabin is provided with the fuse deck; Three fuses from top to bottom are equipped with in the top of fuse deck; The left side at fuse top is provided with switch knob, and said release comprises circuit board, release shell and release pedestal, and a side of release pedestal is provided with energy storage pull bar and release functional switch; The opposite side of release pedestal fastens has the release shell; The cavity inside that forms between release shell and the release pedestal is provided with circuit board, and the below of release shell is provided with energising demagnetization permanent magnet, and a side of energising demagnetization permanent magnet is provided with sucker; Sucker connects extension spring, and extension spring is connected with the fuse cabin through taking off mouthful ripping bar.
The width in the width of said switch support and fuse cabin and the width of release are identical.
A phase, B phase and C that the upper end of said fuse connects introducing release three-phase electricity respectively contrast circuit as the power taking of release with the lower end, and the lower end of fuse connects the A phase, B phase and the C that introduce the release three-phase electricity respectively and contrasts circuit as the detection of release with the upper end.
Said circuit board comprises rectification circuit module, residue phase power failure detection circuit module, output circuit module and main control singlechip, and power failure detection circuit module and output circuit module connect main control singlechip mutually with rectification circuit module, residue respectively through circuit.
Said fuse deck comprises contact base and supporting plate, and the bottom of contact base is provided with the copper bar terminal block, and the two ends of contact base top are the fixing branch frame plate respectively, and the both sides of supporting plate are provided with contact respectively, between two supporting plates extension spring are set.
Said release comprises circuit board, release shell and release pedestal; One side of release pedestal is provided with the dropout switch, and the opposite side of release pedestal fastens has the release shell, and the cavity inside that forms between release shell and the release pedestal is provided with circuit board; The below of release shell is provided with energising demagnetization permanent magnet; One side of energising demagnetization permanent magnet is provided with sucker, and the opposite side of sucker is provided with energy storage and promotes bucket, and energy storage promotes bucket and is provided with stage clip.
Said fuse deck comprises the contact base; The bottom surface of contact base is a copper bar wiring face; The right ends of contact base top surface is provided with two symmetrical groups contact supporting plate respectively, between the corresponding contact supporting plate some contacts is set evenly, is connected through dowel fixes between each contact and the contact supporting plate; Be provided with between two adjacent contacts and collude spring, the top of colluding spring is resisted against on the movable axis at contact middle part.
Beneficial effect of the present invention is:
1, the invention solves the mounting structure problem: the release that the up-down structure mode will be researched and developed voluntarily is contained in the upper end of bar switch; Make it into as a whole and width consistent; Solved under the situation of bar shaped fuse load-break switch band fuse blows open-phase protection function, can also satisfy many circuits and be installed in the narrow and small power distribution cabinet, and easy for installation; Integral body sees that circuit is simple in the power distribution cabinet, has solved the problem of mounting structure contradiction and practicality.
2, the invention solves the problem that single-phase or two fuse blows of traditional fuse switch can not the three-phase outage: the present invention has one or two fuse blows phase shortage dropout power-off protection functions, has solved the problem that traditional fuse switch does not have fuse blows dropout three-phase power down function.
3, the invention solves the slow-footed problem of traditional open-phase protection on-off effect: fuse type load-break switch speed of the present invention is 2-8 second, has solved because the regular tap time passes slowly or do not have a problem that the open-phase protection function makes the low voltage electric network phase-deficient operation.
4, the invention solves traditional fuse switch contact problem of unstable: contact adopts multiple spot independently to contact; It is too big and stable that each point has independent spring to guarantee that pressure does not need; Whole lifting one's head one has 12 independent contacts, solved the problem of traditional fuse switch contact pressure, temperature rise, three mutual contradictions of problem of virtual connection.
Description of drawings
According to accompanying drawing the present invention is done further explain below.
Fig. 1 is the front view of the compound isolating switch of the embodiment of the invention 1 described fusing open-phase protection type fuse;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the circuit theory diagrams of rectification circuit module in the compound isolating switch of the embodiment of the invention 1 described fusing open-phase protection type fuse;
Fig. 4 is the circuit theory diagrams of residue phase power failure detection circuit module in the compound isolating switch of the embodiment of the invention 1 described fusing open-phase protection type fuse;
Fig. 5 is the circuit theory diagrams of output circuit module in the compound isolating switch of the embodiment of the invention 1 described fusing open-phase protection type fuse;
Fig. 6 the present invention is the front view of fuse deck in the compound isolating switch of embodiment 1 described fusing open-phase protection type fuse;
Fig. 7 is that the present invention is the end view of fuse deck in the compound isolating switch of embodiment 1 described fusing open-phase protection type fuse;
Fig. 8 is the front view of the compound isolating switch of the embodiment of the invention 2 described fusing open-phase protection type fuses;
Fig. 9 is the upward view of Fig. 6;
Figure 10 is the front view of fuse deck in the compound isolating switch of the embodiment of the invention 2 described fusing open-phase protection type fuses;
Figure 11 is the end view of fuse deck in the compound isolating switch of the embodiment of the invention 2 described fusing open-phase protection type fuses;
Figure 12 is the upward view of fuse deck in the compound isolating switch of the embodiment of the invention 2 described fusing open-phase protection type fuses.
Among the figure:
1, switch support; 2, release; 3, switch cover; 4, fuse cabin; 5, fuse deck; 6, fuse; 7, switch knob; 8, circuit board; 9, release shell; 10, release pedestal; 11, energy storage pull bar; 12, release functional switch; 13, energising demagnetization permanent magnet; 14, sucker; 15, extension spring; 16, take off a mouthful ripping bar; 17, rectification circuit module; 18, residue phase power failure detection circuit module; 19, output circuit module; 20, main control singlechip; 21, contact base; 22, supporting plate; 23, copper bar terminal block; 24, contact; 25, extension spring; 26, dropout switch; 27, energy storage promotes bucket; 28, stage clip; 29, copper bar wiring face; 30, contact supporting plate; 31, contact; 32, pin; 33, collude spring; 34, movable axis.
Embodiment
Shown in Fig. 1-7, the compound isolating switch of the embodiment of the invention 1 described fusing open-phase protection type fuse comprises bar shaped isolating switch and release 2; Said bar shaped isolating switch comprises switch support 1 and switch cover 3; One side of switch support 1 is provided with switch cover 3, and the opposite side of switch support 1 is provided with fuse cabin 4, and the inside in fuse cabin 4 is provided with fuse deck 5; Three fuses 6 from top to bottom are equipped with in the top of fuse deck 5; The left side at fuse 6 tops is provided with switch knob 7, and said release 2 comprises circuit board 8, release shell 9 and release pedestal 10, and a side of release pedestal 10 is provided with energy storage pull bar 11 and release functional switch 12; The opposite side of release pedestal 10 fastens has release shell 9; The cavity inside that forms between release shell 9 and the release pedestal 10 is provided with circuit board 8, and the below of release shell 9 is provided with energising demagnetization permanent magnet 13, and a side of energising demagnetization permanent magnet 13 is provided with sucker 14; Sucker 14 connects extension spring 15, and extension spring 15 is connected with fuse cabin 4 through taking off mouthful ripping bar 16.
The width in the width of said switch support 1 and fuse cabin 4 and the width of release 2 are identical.
A phase, B phase and C that the upper end of said fuse 6 connects introducing release 2 three-phase electricity respectively contrast circuit as the power taking of release 2 with the lower end, and the lower end of fuse 6 connects the A phase, B phase and the C that introduce release 2 three-phase electricity respectively and contrasts circuit as the detection of release 2 with the upper end.
Said circuit board 8 comprises rectification circuit module 17, residue phase power failure detection circuit module 18, output circuit module 19 and main control singlechip 20; Main control singlechip 20 through circuit respectively with rectification circuit module 17, residue mutually power failure detection circuit module 18 and output circuit module 19 connect, main control singlechip 20 also receives Smoke Sensor signal and sense switch detection signal through circuit.
Said fuse deck 5 comprises contact base 21 and supporting plate 22; The bottom of contact base 21 is provided with copper bar terminal block 23; The two ends at contact base 21 tops are fixing branch frame plate 22 respectively, and the both sides of supporting plate 22 are provided with respectively between 24, two supporting plates 22 of contact extension spring 25 is set.
Residue phase power failure detection circuit module 18, as shown in Figure 4, moving triode Q1, if there is electric C1N signal to show as low level, outage shows as high level.The C2 effect is the accumulation of energy effect, in order to avoid the electric mutually half-wave in addition of C does not have electricity, will cause triode can not continue conducting.
The present invention is except the Smoke Sensor detection signal with the inspection switch signal, and the main signal source that determines whether to thread off is: C1N, AB2N, AC2N, as long as front-end A 1; B1, C1 is normal, rear end A2; B2, C2 any do not have electricity mutually and (are equivalent to have at least a fusing fuse to break off; If front-end A 1, B1, C1 itself have any outage, and this device is not at the row of protection).Concrete realization is mainly passed through C1N, AB2N, and three input of AC2N are comprehensively judged execution.
Thread off if desired and move, above-mentioned signal has the following several kinds of forms of expression:
A, C1N are low level, AB2N, and any one of AC2N is a high level;
B, C1N are high level, and AB2N is a high level.
Other several kinds of operating states of the present invention mainly contain 2 aspects, specifically describe as follows:
A, Smoke Sensor detection signal:, be the present invention's action of threading off at once, to protect whole release and electrical network relevant device if fire takes place or smoke signal triggers;
B, inspection switch input: if owing to after this release threads off, be in the state of not triggering at the back basically.Whether the maintainer overhauls, and when opening trip gear, needs to trigger once, keeped in repair so that the maintenance personal knows in system.If confirm to keep in repair, detect when needing to thread off the signal that moves the action of to thread off normally.
The contact base 21 of fuse deck 5 is effects of fixing branch frame plate 22 and lower end copper bar terminal block 23; The centre of contact 24 has above a movable axis extension spring hangs over; Receive the strength of extension spring 25 pulling back contacts 24 to distribute to four contacts 24 again to the semicircle at contact 24 two ends, about the movable axis 34 of centre of each two contact 24 can be the pulling force distributed uniform when contact 31 monolithics are stressed.The semicircle of lower end and contact base 21 contact under the situation that keeps pulling force; The fuse cutter sheet contact of semicircle and the reeve of upper end contacts under the situation of maintenance pulling force, guarantees that crucial contact point is in operation to keep-up pressure always and can not lose pressure because of variation of temperature
During assembling; Switch support 1 is an insulating temperature resistant meterial; Fuse deck 5 (electric-conductor) is fixed in the above the back as the fixed contact of switch, again fuse cabin 4 and switch support 1 is fixed together (preventing fuse deck 5 exposed conducting), accomplish the switch rear portion and install.Three fuses 6 are contained on the switch cover 3 moving contact as switch, together insert the switch rear portion after again switch knob 7 and switch cover 3 being fitted together, form the lower part of switch.Then release 2 is fixed on the switch upper end, dropout ripping bar 16 is installed, installation.
During concrete the use, at first forwards move the energy storage stayed mast 11 on the release 2 to the energy storage position; When the three-phase shortcircuit electric current occurring, the fuse 6 meeting fusing disengagement failure electric currents of switch bottom, the release 2 on top is not participated in work; When three overload currents occurring; The nonsynchronous situation of fusing speed may appear in the fuse 6 of switch bottom; At this moment the release 2 of upper end is through being installed in the detection line of each fuse 6 lower end; Detect at first the circuit of fusing, can send the instruction that keeps threading off after three seconds like phase shortage (purpose of delay time three seconds is that electric arc is too big when preventing that other two electric currents are excessive to cause fuse and dop to leave) after the circuit board 8 of release detects, if other two also fuse after three seconds and prove that electric current is very little certainly; At this moment release 2 actions spur dropout ripping bars 16; Dropout ripping bar 16 with strength transmission to switch cover 3 lower end pull switchs lid 3 move forward 20 millimeters from fuse dop 5 (fixed contact), pull out fuse 6 (moving contact), break off three-phase line, finish the work; One phase or two mutually big current fusings are appearring; When residue is normal current mutually; Release 2 can be opened switch through detection fuse 6 lower ends time-delays three seconds (can not burn the lower end motor in three seconds) makes fuse 2 leave 20 millimeters of fuse decks, breaks off three-phase line, finishes the work.
When running into above-mentioned described line fault; Fuse 2 lower ends that fuse in the switch can be electroless state; The detection line of this point is on the circuit board 8 of release 2, and circuit board 8 is through handling, and signaling to relay after three seconds lets relay open state and become closure state from long; Reciprocal three times; The electric current that has 24V/0.5A when closed flows to energising demagnetization permanent magnet 13, energising demagnetization permanent magnet 13 originally have the suction of 25kg get electric back rapidly demagnetization made the original sucker of inhaling together with energising demagnetization permanent magnet 13 14 under the pulling of extension spring 15, move 20 millimeters to the switch rear portion, the upper end that spurs dropout ripping bar 16 simultaneously is that the axle center is moved 20 millimeters to the switch rear portion with the central point of dropout ripping bar 16; The lower end of dropout ripping bar 16 is corresponding moves 20 millimeters to the switch front portion; Anterior mobile 20 millimeters to switch of the switch covers 3 of pull switch separate fuse 2 and fuse deck 5, and entire circuit is broken off in execution.
Shown in Fig. 8-12, the compound isolating switch of the embodiment of the invention 2 described fusing open-phase protection type fuses comprises bar shaped isolating switch and release 2; Said bar shaped isolating switch comprises switch support 1 and switch cover 3, and a side of switch support 1 is provided with switch cover 3, and a side of switch support 1 is provided with switch cover 3; The opposite side of switch support 1 is provided with fuse cabin 4; The top in fuse cabin 4 is provided with fuse deck 5, and the top of fuse deck 5 is provided with fuse 6, and the left side at fuse 6 tops is provided with switch knob 7; Said release 2 comprises circuit board 8, release shell 9 and release pedestal 10; One side of release pedestal 10 is established dropout switch 26, and the opposite side of release pedestal 10 fastens has release shell 9, and the cavity inside that forms between release shell 9 and the release pedestal 10 is provided with circuit board 8; The below of release shell 9 is provided with energising demagnetization permanent magnet 13; One side of energising demagnetization permanent magnet 13 is provided with sucker 14, and the opposite side of sucker 14 is provided with energy storage and promotes bucket 27, and energy storage promotes bucket 27 and is provided with stage clip 28.
Said fuse deck 5 comprises contact base 21; The bottom surface of contact base 21 is a copper bar wiring face 29; The right ends of contact base 21 end faces is provided with two symmetrical groups contact supporting plate 30 respectively, and some contacts 31 evenly are set between the corresponding contact supporting plate 30, is fixedly connected through pin 32 between each contact 31 and the contact supporting plate 30; Be provided with between two adjacent contacts 31 and collude spring 33, the top of colluding spring 33 is resisted against on the movable axis 34 at contact 31 middle parts.
The main original paper energising demagnetization permanent magnet 13 of the release of the present invention top belongs to release 2 main original papers with sucker 14; Can reach the purpose of dropout after this element and the power liftgate combination, have the advantage that can not occur mechanism blockage than the traditional mechanical mode stability of threading off simple in structure by force simultaneously.
During assembling, switch support 1 is an insulation heatproof part, as the fixed contact of switch, again fuse cabin 4 and switch support is fixed together (preventing fuse deck exposed conducting) installation of switch rear portion after fuse 6 decks (electric-conductor) are fixed in the above.Three fuses 6 are contained on the switch cover 3 moving contact as switch respectively; Together insert the switch rear portion after again switch knob 7 and switch cover 3 being fitted together, form the lower part of switch, then release 2 is fixed on the switch upper end; Switch knob 7 extension plates are installed, installation.
During work, at first promote bucket 27 to the energy storage on the release 2 and be pressed onto the energy storage position; When the three-phase shortcircuit electric current occurring, the fuse 6 meeting fusing disengagement failure electric currents of switch bottom, the release 2 on top is not participated in work; When three overload currents occurring; The nonsynchronous situation of fusing speed may appear in the fuse 6 of switch bottom; At this moment the release 2 of upper end detects at first the circuit of fusing through being installed in the detection line of each fuse 6 lower end, can send the instruction that keeps threading off after three seconds like phase shortage (purpose of delaying time three seconds is that electric arc is too big when preventing that other two electric currents are excessive to cause fuse and dop to leave) after the circuit board 8 of release 2 detects then; If other two also fusing proof electric current is very little certainly after three seconds; At this moment release action pull switch handle extension plate, the switch knob extension plate drives switch knob 7 to 80 millimeters of previous crops arcuate movement, and three fuses 6 (moving contact) are extracted fuse deck 5 (fixed contact); Break off three-phase circuit, execution; One phase or two mutually big current fusings are appearring; When residue is normal current mutually; Release 2 still can be opened switch through detection fuse 6 lower ends time-delays three seconds (can not burn the lower end motor in three seconds) makes fuse leave fuse deck 5 with arc, breaks off whole circuit, finishes the work.
When running into above-mentioned described line fault, the detection line of the lower end of the fuse 6 that fuses in the switch can become electroless state, and this detection line is on the circuit board 8 of release 2; Circuit board 8 is through handling; Signaling to relay after three seconds lets relay open state and become closure state from long, and reciprocal three times, the electric current that has 24V/0.5A when closed flows to energising demagnetization permanent magnet 13; Electricity demagnetization permanent magnet 13 electric back rapidly demagnetization made original and electric demagnetization permanent magnet 13 inhale together sucker 14 under the promotion of stage clip 28, to promote 80 millimeters to switch is anterior; Promote simultaneously to thread off and do the circular arc motion to switch the place ahead, drive switch knob 7, switch cover 3, fuse 6 motions, three fuses 6 (moving contact) are extracted fuse deck 5 (fixed contact) with the switch extension rod; Break off three-phase circuit, break off entire circuit.
The centre of per two contacts 31 of fuse deck 5 has the spring 33 that colludes of a movable axis 34 to collude in the above; The strength of being colluded spring 33 pulling back contacts 31 is distributed to four contacts 31 again to the semicircle at contact 31 two ends, about movable axis 34 in the middle of each two contact 31 can be the pulling force distributed uniform when contact 31 monolithics are stressed.The semicircle of lower end and contact base 21 contact under the situation that keeps pulling force; The fuse cutter sheet contact of semicircle and the reeve of upper end contacts under the situation of maintenance pulling force, guarantees that crucial contact point is in operation to keep-up pressure always and can not lose pressure because of variation of temperature.
Claims (7)
1. fusing open-phase protection type fuse compound isolating switch; Comprise bar shaped isolating switch and release (2); It is characterized in that: said bar shaped isolating switch comprises switch support (1) and switch cover (3); One side of switch support (1) is provided with switch cover (3), and the opposite side of switch support (1) is provided with fuse cabin (4), and the inside of fuse cabin (4) is provided with fuse deck (5); Three fuses (6) from top to bottom are equipped with in the top of fuse deck (5), and the left side at fuse (6) top is provided with switch knob (7); Said release (2) comprises circuit board (8), release shell (9) and release pedestal (10); One side of release pedestal (10) is provided with energy storage pull bar (11) and release functional switch (12); The opposite side of release pedestal (10) fastens has release shell (9); The cavity inside that forms between release shell (9) and the release pedestal (10) is provided with circuit board (8); The below of release shell (9) is provided with energising demagnetization permanent magnet (13); One side of energising demagnetization permanent magnet (13) is provided with sucker (14), and sucker (14) connects extension spring (15), and extension spring (15) is connected with fuse cabin (4) through taking off a mouthful ripping bar (16).
2. the compound isolating switch of fusing open-phase protection type fuse according to claim 1 is characterized in that: the width of the width of said switch support (1) and fuse cabin (4) and the width of release (2) are identical.
3. the compound isolating switch of fusing open-phase protection type fuse according to claim 1 and 2; It is characterized in that: A phase, B phase and C that the upper end of said fuse (6) connects introducing release (2) three-phase electricity respectively contrast circuit as the power taking of release (2) with the lower end, and the lower end of fuse (6) connects the A phase, B phase and the C that introduce release (2) three-phase electricity respectively and contrasts circuit as the detection of release (2) with the upper end.
4. the compound isolating switch of fusing open-phase protection type fuse according to claim 3; It is characterized in that: said circuit board (8) comprises rectification circuit module (17), residue phase power failure detection circuit module (18), output circuit module (19) and main control singlechip (20), and power failure detection circuit module (18) and output circuit module (19) connect main control singlechip (20) mutually with rectification circuit module (17), residue respectively through circuit.
5. the compound isolating switch of fusing open-phase protection type fuse according to claim 4; It is characterized in that: said fuse deck (5) comprises contact base (21) and supporting plate (22); The bottom of contact base (21) is provided with copper bar terminal block (23); The two ends at contact base (21) top are fixing branch frame plate (22) respectively, and the both sides of supporting plate (22) are provided with contact (24) respectively, and extension spring (25) is set between two supporting plates (22).
6. the compound isolating switch of fusing open-phase protection type fuse according to claim 1 is characterized in that: the opposite side of sucker (14) is provided with energy storage and promotes bucket (27), and energy storage promotes bucket (27) and is provided with stage clip (28).
7. the compound isolating switch of fusing open-phase protection type fuse according to claim 6; It is characterized in that: said fuse deck (5) comprises contact base (21); The bottom surface of contact base (21) is copper bar wiring face (29); The right ends of contact base (21) end face is provided with two symmetrical groups contact supporting plate (30) respectively; Some contacts (31) evenly are set between the corresponding contact supporting plate (30); Is fixedly connected through pin (32) between each contact (31) and the contact supporting plate (30), is provided with between adjacent two contacts (31) and colludes spring (33), the top of colluding spring (33) is resisted against on the movable axis (34) in the middle part of the contact (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209958.8A CN102412086B (en) | 2011-07-26 | 2011-07-26 | Fusing phase-lacking protection fuse composite disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209958.8A CN102412086B (en) | 2011-07-26 | 2011-07-26 | Fusing phase-lacking protection fuse composite disconnector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102412086A true CN102412086A (en) | 2012-04-11 |
| CN102412086B CN102412086B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110209958.8A Expired - Fee Related CN102412086B (en) | 2011-07-26 | 2011-07-26 | Fusing phase-lacking protection fuse composite disconnector |
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| Country | Link |
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| CN (1) | CN102412086B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113284773A (en) * | 2021-05-26 | 2021-08-20 | 上海电器科学研究所（集团）有限公司 | Switch with built-in current-limiting fuse |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102716A (en) * | 1985-04-22 | 1986-10-22 | 联合电子工业有限公司 | The operating mechanism of switching device |
| CN201048281Y (en) * | 2007-03-06 | 2008-04-16 | 瑞安市工泰电器有限公司 | Motor protection breaker |
| CN201160218Y (en) * | 2007-12-21 | 2008-12-03 | 王卫东 | Plastic-shell-type dynamoelectric integrated three phase AC electric motor protector with energy accumulation clasher |
| CN202134447U (en) * | 2011-07-26 | 2012-02-01 | 米而电气（上海）有限公司 | Composite isolating switch of fusing open-phase protection type fuse |
-
2011
- 2011-07-26 CN CN201110209958.8A patent/CN102412086B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102716A (en) * | 1985-04-22 | 1986-10-22 | 联合电子工业有限公司 | The operating mechanism of switching device |
| CN201048281Y (en) * | 2007-03-06 | 2008-04-16 | 瑞安市工泰电器有限公司 | Motor protection breaker |
| CN201160218Y (en) * | 2007-12-21 | 2008-12-03 | 王卫东 | Plastic-shell-type dynamoelectric integrated three phase AC electric motor protector with energy accumulation clasher |
| CN202134447U (en) * | 2011-07-26 | 2012-02-01 | 米而电气（上海）有限公司 | Composite isolating switch of fusing open-phase protection type fuse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113284773A (en) * | 2021-05-26 | 2021-08-20 | 上海电器科学研究所（集团）有限公司 | Switch with built-in current-limiting fuse |
| CN113284773B (en) * | 2021-05-26 | 2022-12-20 | 上海电器科学研究所（集团）有限公司 | Switch with built-in current-limiting fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102412086B (en) | 2014-04-16 |
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