CN204964704U - Circuit breaker - Google Patents

Abstract

The utility model discloses circuit breaker, including the casing, fix the test button on the casing, test circuit and switch module. The switch module includes conducting bridge, resistance, first stationary contact and second stationary contact, test circuit's one end and ohmic connection, the other end and the first stationary contact of resistance are connected, and test circuit's other end wire and second stationary contact are connected, the conducting bridge sets up the break -make that is used for controlling first stationary contact and second stationary contact on test button, is equipped with reset spring between test button and the casing. The utility model discloses circuit breaker's test button device adopts the double break dot structure, increases clearance, satisfies the integral type product demand, the connection is connected with first stationary contact and second stationary contact respectively at the wire of the test circuit other end with connecting at the other end of the resistance of test circuit one end, and simple structure reduces material cost.

Description

Isolating switch

Technical field

The utility model relates to Low Voltage Electrical Apparatus, particularly a kind of isolating switch.

Background technology

The many employings spring leaf design of existing testing button for circuit breaker mechanism, and be single-break structure, test button adopts the mode of pushing to realize controlling metal clips, the stroke of button is large, and cause mechanism not compact, manual dexterity is low, especially in integrated product, because product layout is comparatively compact, button stroke diminishes, and easily causes withstand voltage puncturing.

At present, due to the existence of distributed capacitance and insulation resistance over the ground in isolating switch distribution line, the electric leakage existed in equipment use process and three-phase line insulation impedance imbalance all can produce Leakage Current, therefore just there is an initial leakage current when residual current action breaker uses in zero sequence current mutual inductor.When occurring the larger current of a moment in circuit, but time simultaneously lower than product instantaneous trip electric current, also there will be the larger induced voltage of a moment at the secondary side of zero sequence current mutual inductor, reach the setting value of product, there is product misoperation, cause the adverse consequencess such as power-off.In order to the misoperation preventing product from occurring above-mentioned situation, just need the zero sequence current mutual inductor selecting equilibrium response excellent, when making the larger current occurring a moment in circuit, secondary side induced voltage is not enough to drive electromagnetic relay.But be subject to the restriction of technological level, the mutual inductor performance of current domestic production is difficult to reach high-performance, again or by technology introduction, cost is higher.

At present; isolating switch is just towards multifunction, miniaturization; possess while integral type overload, short circuit, creepage protection function isolating switch more and more by the favor in market; can synchronous disconnecting circuit or realize synchroswitching at needs closing of circuit when multipole, multi-functional isolating switch need STATEMENT OF FEDERALLY SPONSORED to realize occurring a certain current failure, while also need STATEMENT OF FEDERALLY SPONSORED to assemble easily and to dismantle.Existing STATEMENT OF FEDERALLY SPONSORED mostly is embedded design, needs to embed in the axle of STATEMENT OF FEDERALLY SPONSORED by pole by the handle hole of operating mechanism when assembling, and realizes interlock; When occurring that STATEMENT OF FEDERALLY SPONSORED is damaged, to need after detaching products and after isolating switch is split out by pole, just can change, complex operation.

Summary of the invention

The purpose of this utility model is the defect overcoming prior art, provides a kind of structure simple, stable and reliable for performance, isolating switch with low cost.

For achieving the above object, the utility model have employed following technical scheme:

A kind of isolating switch, comprises housing 1, is fixed on the test button 2 on housing 1, test loop 3B and switch module; Described switch module comprises conducting bridge 3, resistance 4, first stationary contact 51 and the second stationary contact 52; One end of described test loop 3B is connected with resistance 4, and the other end of resistance 4 is connected with the first stationary contact 51, and the other end wire 5 of test loop 3B is connected with the second stationary contact 52; Conducting bridge 3 to be arranged on test button 2 for controlling the break-make of the first stationary contact 51 and the second stationary contact 52, is provided with back-moving spring 6 between test button 2 and housing 1.

Further, conducting bridge 3 is extended in one end of described back-moving spring 6.

Further, described first stationary contact 51 and the second stationary contact 52 are positioned at the side of test button 2, conducting bridge 3 is extended to the first stationary contact 51 and the second stationary contact 52 side in one end of described back-moving spring 6, and conducting bridge 3 is positioned at when off-position above the first stationary contact 51 and the second stationary contact 52.

Further, described second stationary contact 52 is between the first stationary contact 51 and test button 2, and the first stationary contact 51 is higher than the second stationary contact 52.

Further, the middle part that described housing 1 is provided with first fixed block 11, first fixed block 11 at fixed resistance 4 two ends is provided with fixed groove 111; Described housing 1 is provided with the second fixed block 12 of the other end of fixed resistance 4, second fixed block 12 is provided with and allows the other end end of resistance 4 through fixing fixed orifice 121, the other end of resistance 4 is through after fixed orifice 121, and the part be exposed at outside fixed orifice 121 forms the first stationary contact 51.

Further, described housing 1 is provided with the 3rd fixed block 14 of the other end wire 5 of fixation test loop 3B, 3rd fixed block 14 is provided with the fixed via allowing one end wire 5 of test loop 3B pass, one end wire 5 of test loop 3B is through after fixed via, and the part of stretching out fixed via forms the second stationary contact 52.

Further, the end of described test button 2 extends the spring fixed column 21 being provided with fixed reset spring 6 one end, and described housing 1 is provided with spring anchor block 13, and spring anchor block 13 is provided with the pockets 131 holding back-moving spring 6 other end.

Further, the side of described test button 2 is provided with the buckle arm 22 be clasped with housing 1, and buckle arm 22 is provided with adjutage 23 to downward-extension, and the lower end of adjutage 23 is provided with the conducting bridge fixed groove 231 of fixing conducting bridge 3.

Further, after the other end of resistance 4 is fixing by the first fixed block 11, is bent to form U-shaped bending segment 41 rearward end and is fixed by the second fixed block 12.

Further, also comprise residual current detection element 1B, drop-away reset mechanism 2B and electromagnetic type relay 9B; Described test loop 3B is located at enclosure interior side, for detecting internal circuit; Described residual current detection element 1B is located at housing bottom, is positioned at side, for whether there is residual current in testing circuit; Described drop-away reset mechanism 2B and electromagnetic type relay 9B is oppositely arranged, and the striker of electromagnetic type relay 9B ejects and can promote drop-away reset mechanism 2B and thread off; Described drop-away reset mechanism 2B comprises U-shaped bar 21b, snap close 22b, tripping 23b, and described handle and U-shaped bar 21b, snap close 22b and tripping 23b are connected to form four-bar linkage structure, and the other end of tripping 23b is connected with ejector return pin 24b; Also comprise release lever 25b, described release lever 25b one end pivotable is connected on housing, the other end can be stirred ejector return pin 24b and rotate, one end of described ejector return pin 24b is connected with spring leaf 241b, the side of spring leaf 241b and the striker of electromagnetic type relay 9B offset, opposite side and release lever 25b are oppositely arranged, during dropout, the striker of electromagnetic type relay 9B ejects and promotes spring leaf 241b, drive ejector return pin 24b to rotate, the release lever of spring leaf 241b promotion simultaneously 25b drives ejector return pin 24b to rotate and destroys the chain of snap close 22b and tripping 23b.

The test button device of the utility model isolating switch adopts Double-breakpoint structure, increases electric clearance, meets integrated product demand; The other end being connected to the resistance of one end, test loop is connected with the first stationary contact and the second stationary contact respectively with the wire being connected to the test loop other end, structure is simple, reduce material cost, the conducting bridge be arranged on test button controls the break-make of the first stationary contact and the second stationary contact, structure is simpler, reduce the actuating length of test button simultaneously, the test button mechanism structure of isolating switch is compact, test button adopts special back-moving spring, reset more reliable, work more reliable and stable, operate more sensitive, reduce material cost simultaneously.Conducting bridge is extended in one end of back-moving spring, without the need to arranging other conducting bridge parts, smart structural design, saves material.First stationary contact is higher than the second stationary contact, and when the end thereof contacts of conducting bridge is to the first stationary contact, hookup still can not be connected, until when the other end of conducting bridge touches the second stationary contact, test loop is connected, and carries out electric circuit inspection, reasonable in design, works more reliable and stable.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model overcurrent protection pole;

Fig. 2 is the structural representation of the utility model residual current dropout pole;

Fig. 3 is the schematic diagram of the utility model residual current dropout pole with test button mechanism;

Fig. 4 is the structural representation of the utility model test button;

Fig. 5 is the structural representation of the utility model electromagnetic system;

Fig. 6 is the structural representation of the utility model wire coiling in zero-sequence transformer;

Fig. 7 is the structural representation that the utility model isolating switch is provided with STATEMENT OF FEDERALLY SPONSORED;

Fig. 8 is the decomposition texture schematic diagram of the utility model isolating switch and STATEMENT OF FEDERALLY SPONSORED;

Fig. 9 is the structural representation of the utility model STATEMENT OF FEDERALLY SPONSORED;

Figure 10 is the structural representation of the utility model circuit breaker handle side;

Figure 11 is the structural representation of the opposite side of the utility model circuit breaker handle;

Figure 12 is the structural representation of another handle side of the utility model isolating switch;

Figure 13 is the structural representation of the opposite side of another handle of the utility model isolating switch.

Embodiment

Below in conjunction with the embodiment that accompanying drawing 1 to 13 provides, further illustrate the embodiment of the utility model isolating switch.The utility model isolating switch is not limited to the description of following examples.

As shown in Figure 1-2, the utility model isolating switch, forms monolithic construction by two overcurrent protection poles and residual current dropout pole, and two overcurrent protection poles are symmetrically distributed in both sides, residual current dropout pole, separate between at different levels by dividing plate.Two overcurrent protection poles are arranged symmetrically with, and make both sides overcurrent protection have identical electric loop length, compared with residual current dropout pole is arranged in isolating switch side, and more advantageous product temperature rise and deferred action.

As shown in Figure 8, be the overcurrent protection electrode structure of the utility model isolating switch.Described each overcurrent protection pole includes the operating mechanism 1A be connected with handle, instantaneous release 2A, delayed release 4A, the housing of contact system 3A and overcurrent protection pole, described contact system 3A comprises static contact 5A and moving contact 6A, one end of moving contact 6A is connected with operating mechanism 1A, static contact 5A is fixed in the housing of overcurrent protection pole, the contact of static contact 5A and the contact of moving contact 6A are oppositely arranged, described instantaneous release 2A is positioned at the top of arc-control device 7A, drives operating mechanism 1A to thread off during short circuit; Described delayed release 4A is positioned at housing bottom, is positioned at arc-control device 7A side, drives operating mechanism 1A to thread off during circuit overloads; The inner structure of two overcurrent protection poles is symmetrical arranged, and has identical electric loop length.The overcurrent protection pole of the utility model isolating switch simple and compact for structure, space utilization rate is high.

As in Figure 2-4, be the residual current dropout electrode structure of the utility model isolating switch.Described residual current dropout pole also comprises residual current detection element 1B, the drop-away reset mechanism 2B be connected with assist handle 9b, test loop 3B, the housing of electromagnetic type relay 9B and residual current dropout pole, described test loop 3B is located at the enclosure interior side of residual current dropout pole, for detecting internal circuit, described electromagnetic type relay 9B is located at the housing bottom side of residual current dropout pole, described residual current detection element 1B is located at the housing bottom of residual current dropout pole, be positioned at electromagnetic type relay 9B side, for whether there is residual current in testing circuit, described drop-away reset mechanism 2B and electromagnetic type relay 9B is oppositely arranged, the striker of electromagnetic type relay 9B ejects and can promote drop-away reset mechanism 2B and thread off.The residual current dropout electrode structure of the utility model isolating switch is simply compact, and inner member is rationally distributed.

As in Figure 2-4, described drop-away reset mechanism 2B comprises U-shaped bar 21b, snap close 22b, tripping 23b, and described handle and U-shaped bar 21b, snap close 22b and tripping 23b are connected to form four-bar linkage structure, and the other end of tripping 23b is connected with ejector return pin 24b; Also comprise release lever 25b, described release lever 25b one end pivotable is connected on housing, the other end can be stirred ejector return pin 24b and rotate, one end of described ejector return pin 24b is connected with spring leaf 241b, the side of spring leaf 241b and the striker of electromagnetic type relay 9 offset, opposite side and release lever 25b are oppositely arranged, during dropout, the striker of electromagnetic relay 9 ejects and promotes spring leaf 241b, drive ejector return pin 24b to rotate, the release lever of spring leaf 241b promotion simultaneously 25b drives ejector return pin 24b to rotate and destroys the chain of snap close 22b and tripping 23b.Drop-away reset mechanism of the present utility model, during dropout, spring leaf 241b can drive ejector return pin 24b rotation to thread off on the one hand, the release lever of spring leaf 241b promotion simultaneously 25b drives ejector return pin 24b to rotate destruction snap close 22b and the chain of tripping 23b is threaded off, double tripping accelerates drop-away time, enhances product performance; During reset, the striker of electromagnetic relay 9 is clashed into by spring leaf 241b and resets.

As shown in Figure 3-4, isolating switch of the present utility model comprises housing 1, is fixed on the test button 2 on housing 1, test loop 3B and switch module; Described switch module comprises conducting bridge 3, resistance 4, first stationary contact 51 and the second stationary contact 52; One end of described test loop 3B is connected with resistance 4, and the other end of resistance 4 is connected with the first stationary contact 51, and the other end wire 5 of test loop 3B is connected with the second stationary contact 52; Conducting bridge 3 to be arranged on test button 2 for controlling the break-make of the first stationary contact 51 and the second stationary contact 52, is provided with back-moving spring 6 between test button 2 and housing 1.The test button device of the utility model isolating switch adopts Double-breakpoint structure, increases electric clearance, meets integrated product demand; The other end being connected to the resistance of one end, test loop is connected with the first stationary contact and the second stationary contact respectively with the wire being connected to the test loop other end, structure is simple, reduce material cost, the conducting bridge be arranged on test button controls the break-make of the first stationary contact and the second stationary contact, structure is simpler, reduce the actuating length of test button simultaneously, the test button mechanism structure of isolating switch is compact, test button adopts special back-moving spring, reset more reliable, work more reliable and stable, operate more sensitive, reduce material cost simultaneously.Obviously, the Double-breakpoint structure of the utility model test button device, is also applicable to other isolating switch, comprises miniature circuit breaker, breaker of plastic casing etc.

As shown in Figure 3, described first stationary contact 51 and the second stationary contact 52 are positioned at the side of test button 2, conducting bridge 3 is extended to the first stationary contact 51 and the second stationary contact 52 side in one end of described back-moving spring 6, and conducting bridge 3 is positioned at when off-position above the first stationary contact 51 and the second stationary contact 52.The side of the first stationary contact 51 and the second stationary contact 52 is located at by test button 2, avoids the first stationary contact 51 and the second stationary contact 52 during test button 2 action, rational in infrastructure.One end of back-moving spring 6 is stretched out and is formed conducting bridge 3, without the need to arranging other conducting bridge parts, smart structural design, saves material.Described second stationary contact 52 is between the first stationary contact 51 and test button 2, first stationary contact 51 is higher than the second stationary contact 52, when the end thereof contacts of conducting bridge 3 is to the first stationary contact 51, hookup still can not be connected, until when the other end of conducting bridge 3 touches the second stationary contact 52, test loop is connected, and carries out electric circuit inspection, reasonable in design, works more reliable and stable.Shown in figure, test button 2 is positioned at the side of the first stationary contact and the second stationary contact, and conducting bridge 3 stretches out for back-moving spring 6 upper end, and stretches to the top of the first stationary contact 51 and the second stationary contact 52; Test button 2 also can be arranged between the first stationary contact 51 and the second stationary contact 52, and conducting bridge 3 is extended to both sides in the upper end of back-moving spring 6, and both sides conducting bridge 3 lays respectively at the top of the first stationary contact 51 and the second stationary contact 52.

As shown in Figure 3, the middle part that described housing 1 is provided with first fixed block 11, first fixed block 11 at fixed resistance 4 two ends is provided with fixed groove 111; Described housing 1 is provided with the second fixed block 12 of the other end of fixed resistance 4, second fixed block 12 is provided with and allows the other end end of resistance 4 through fixing fixed orifice 121, the other end of resistance 4 is through after fixed orifice 121, and the part be exposed at outside fixed orifice 121 forms the first stationary contact 51.Housing 1 is respectively equipped with the first fixed block 11 at the two ends of resistance 4, and the two ends of resistance 4 are individually fixed in the fixed groove 111 of the first fixed block 11, Stability Analysis of Structures; Also be provided with the second fixed block 12, the other end end of resistance 4 is through after the fixed orifice 121 of the second fixed block 12, and the part be exposed at outside fixed orifice 121 forms the first stationary contact 51, reasonable utilization existing structure, without the need to arranging other contact structure, compact conformation, save material.After the other end of resistance 4 is fixing by the first fixed block 11, after being bent to form U-shaped bending segment 41, its end is fixed by the second fixed block 12, and this design makes the structure of resistance 4 more stable.

As shown in Figure 3, described housing 1 is provided with the 3rd fixed block 14 of the other end wire 5 of fixation test loop 3B, 3rd fixed block 14 is provided with the fixed via allowing one end wire 5 of test loop 3B pass, one end wire 5 of test loop 3B is through after fixed via, and the part of stretching out fixed via forms the second stationary contact 52.The other end wire 5 of the 3rd fixed block 14 fixation test loop 3B that housing 1 is arranged, 3rd fixed block 14 is provided with fixed via, wire 5 is through after fixed via, the part of stretching out fixed via forms the second stationary contact 52, reasonable utilization existing structure, without the need to arranging other contact structure, compact conformation, save material.

The contact structure of the utility model isolating switch, is formed by existing structure relative set, does not increase extra contact structure, and structure is simple, and materials'use rate is high.Above-mentioned fixed sturcture also can adopt other fixed forms.

As shown in Figure 3-4, the end of described test button 2 extends the spring fixed column 21 being provided with fixed reset spring 6 one end, and described housing 1 is provided with spring anchor block 13, and spring anchor block 13 is provided with the pockets 131 holding back-moving spring 6 other end.Test button 2 one end is provided with spring fixed column 21, and one end of back-moving spring 6 is fixed by spring fixed column 21, housing 1 be provided with spring anchor block 13, spring anchor block 13 is provided with pockets 131, and the other end of back-moving spring 6 is placed in pockets 131 and fixes.The side of described test button 2 is provided with the buckle arm 22 be clasped with housing 1, and buckle arm 22 is provided with adjutage 23 to downward-extension, and the lower end of adjutage 23 is provided with the conducting bridge fixed groove 231 of fixing conducting bridge 3.The fixed groove that one end of conducting bridge 3 is extended arm 23 is fixed, and Stability Analysis of Structures is reliable.

As shown in Figure 3, the other end wire 5 of test loop 3B is by after the other end extraction of test loop 3B, upwards extend, extension is fixed by rectangular 4th fixed block 15 that housing 1 is arranged, extend the bottom bending of pockets 131, bending part is fixed by the 5th fixed block 16 of arcuation, then again upwards bends, end is fixed by the 3rd fixed block 14, and the side that upwards bending part is received groove 131 is fixed.The other end wire of said structure to test loop 3B is fixed, and structure is more reliable and more stable.

During installation, back-moving spring 6 is sleeved on the spring fixed column 21 of test button 2 one end, the other end of back-moving spring 6 is placed in pockets 131, back-moving spring 6 relies on himself elastic force, motoring ring test button 2 upwards action, buckle arm 22 and the housing buckle limit assay button 2 of test button 2 side move up, and the conducting bridge 3 of 6 one end of back-moving spring stretches to the first stationary contact 51 of side and the top of the second stationary contact 52, test button 2 installation.

As seen in figs. 5-6, the utility model isolating switch, comprises zero-sequence transformer 7 and through the zero line 5a of zero-sequence transformer 7 and live wire 5b; After described zero line 5a and live wire 5b passes from one end of zero-sequence transformer 7 respectively, zero-sequence transformer 7 passes from the other end of zero-sequence transformer 7 after coiling, described zero line 5a and live wire 5b symmetrical chiasma are wound in zero-sequence transformer 7.The wire of the utility model isolating switch adopts the winding mode of crossed-symmetrical to be wound in zero-sequence transformer, solve in residual current action breaker and occur moment larger current, but there is the problem of misoperation when product zero-sequence transformer secondary side induction current reaches setting value lower than product moment drop-away current simultaneously, head it off is got final product without the need to selecting the zero sequence current mutual inductor of the excellent high expensive of equilibrium response, reduce cost, improve the reliability of product.Obviously, the winding method of the crossed-symmetrical of the wire of the utility model isolating switch in zero-sequence transformer is also applicable to other isolating switch.

As seen in figs. 5-6, described zero line 5a comprises the first nil segment 51a and the second nil segment 52a, described live wire 5b comprises the first live wire section 51b and the second live wire section 52b, first nil segment 51a, the first live wire section 51b, the second nil segment 52a and the second live wire section 52b are evenly distributed on one end of zero-sequence transformer 7 successively, first nil segment 51a and the second nil segment 52a is oppositely arranged, and the first live wire section 51b and the second live wire section 52b is oppositely arranged.Zero line 5a and live wire 5b adopts the winding mode of crossed-symmetrical to be wound in zero-sequence transformer, balances the induction output current of zero-sequence transformer secondary side to greatest extent, enhances product performance.Certainly, zero line 5a and live wire 5b also can adopt the winding mode coiling multi-turn of crossed-symmetrical in zero-sequence transformer 7.

As seen in figs. 5-6, for the concrete winding method of zero line 5a and live wire 5b, described first nil segment 51a is pressed in the top of the first live wire section 51b, after zero line 5a passes from one end of zero-sequence transformer 7, zero line 5a passes from one end of zero-sequence transformer 7 after the sidewall of zero-sequence transformer 7 is wound around again, described second nil segment 52a is pressed on below the first live wire section 51b, and zero line 5a passes from the other end of zero-sequence transformer 7; Described first live wire section 51b is pressed on the below of the first nil segment 51a, after live wire 5b passes from one end of zero-sequence transformer 7, live wire 5b passes from one end of zero-sequence transformer 7 after the sidewall of zero-sequence transformer 7 is wound around again, described second live wire section 52b is pressed on the below of the second nil segment 52a, and live wire 5b passes from the other end of zero-sequence transformer 7.

As seen in figs. 5-6, the sidewall of described zero-sequence transformer 7 forms magnet ring periphery 71, and the lateral wall of the magnet ring periphery 71 of described zero-sequence transformer 7 is provided with the two blocks of coiling plates 711 facilitating zero line 5a and live wire 5b coiling.The lateral wall of the magnet ring periphery 71 of zero-sequence transformer 7 is provided with two blocks of coiling plates 711, facilitates zero line 5a and live wire 5b fixing in zero-sequence transformer 7.Described two blocks of coiling plates 711 are arranged perpendicular to magnet ring periphery 71, and the angle formed between two blocks of coiling plates 711 is 30 degree of-45 degree.The angle formed between two blocks of coiling plates 711 is controlled at 30 degree of-45 degree, be convenient to the crossed-symmetrical coiling realizing wire.

As shown in Figure 5, also comprise two lug plate 1a, two tripping coil 2a and arc leading angle 3a; One end of described two tripping coil 2a is connected with one end of zero line 5a and live wire 5b respectively, the other end is connected with an arc leading angle 3a respectively, zero line 5a and the other end of live wire 5b are connected with a lug plate 1a after being each passed through the zero-sequence transformer 7 being positioned at residual current dropout pole respectively, and described two lug plate 1a, two tripping coil 2a and two arc leading angle 3a are symmetricly set on the both sides of zero-sequence transformer 7 respectively.Lug plate 1a, tripping coil 2a form the electromagnetic system of isolating switch together with arc leading angle 3a, lug plate 1a, tripping coil 2a and arc leading angle 3a are symmetricly set on the both sides of zero-sequence transformer 7 respectively, the Differential Output of mutual inductor can be realized, reduce product misoperation risk.Described tripping coil 2a and arc leading angle 3a, the overcurrent protection being symmetrically distributed in both sides, residual current dropout pole respectively extremely in.

As shown in Figure 5, described each arc leading angle 3a is curved, one end of each arc leading angle 3a is connected with the other end of a tripping coil 2a, one end of arc leading angle 3a is provided with the first brace 31a, the side of the first brace 31a is adjacent to tripping coil 2a and arranges, arc leading angle 3a is provided with stationary contact toward the outer side and forms static contact 5A, and the other end of arc leading angle 3a is connected with the second brace 32a.

As illustrated in figures 7-11; isolating switch of the present utility model; also comprise STATEMENT OF FEDERALLY SPONSORED 10; STATEMENT OF FEDERALLY SPONSORED 10 is connected with handle 9a with assist handle 9b buckle; STATEMENT OF FEDERALLY SPONSORED 10 and STATEMENT OF FEDERALLY SPONSORED 10 can drive the handle 9a of two overcurrent protection poles to link; STATEMENT OF FEDERALLY SPONSORED 10 also can drive the handle 9a of the assist handle 9b and two of a residual current dropout pole overcurrent protection pole to close a floodgate simultaneously; when there is residual current fault in circuit, the assist handle 9b of residual current dropout pole also can promote the handle 9a separating brake simultaneously that STATEMENT OF FEDERALLY SPONSORED 10 drives two overcurrent protection poles.Isolating switch device comprises two overcurrent protection poles and a residual current dropout pole, and two overcurrent protection poles are distributed in the both sides of residual current dropout pole symmetrically; STATEMENT OF FEDERALLY SPONSORED can drive the handle of two overcurrent protection poles to link; STATEMENT OF FEDERALLY SPONSORED also can drive the assist handle of residual current dropout pole and the handle of two overcurrent protection poles to close a floodgate simultaneously; when there is residual current fault in circuit, the assist handle of residual current dropout pole also can promote the handle separating brake simultaneously that STATEMENT OF FEDERALLY SPONSORED drives two overcurrent protection poles.Obviously, the structure of the utility model isolating switch is also applicable to other isolating switch.

STATEMENT OF FEDERALLY SPONSORED 10 also can be connected with the handle 9a buckle of the multipole circuit breaker be connected in parallel, and realizes the combined operation of the handle 9a of multipole circuit breaker.STATEMENT OF FEDERALLY SPONSORED 10 also can be used as multipole overcurrent protection pole and realizes linkage function use; the both sides of what multipole overcurrent protection was extremely average be assigned to residual current dropout pole; STATEMENT OF FEDERALLY SPONSORED also can drive the handle of the assist handle of residual current dropout pole and the overcurrent protection pole of both sides to close a floodgate simultaneously; when there is residual current fault in circuit, the assist handle of residual current dropout pole also can promote the handle separating brake simultaneously that STATEMENT OF FEDERALLY SPONSORED drives the overcurrent protection pole of both sides.

As Figure 7-9, described STATEMENT OF FEDERALLY SPONSORED 10 is provided with the buckle boss 101 be connected with the handle 9a of two overcurrent protection poles, and the handle 9a of described two overcurrent protection poles is respectively equipped with the snap-fit grooves 901a coordinated with the buckle boss 101 of STATEMENT OF FEDERALLY SPONSORED 10; Assist handle 9b one end of described residual current dropout pole is provided with supplementary tumbler bar 901b, and described STATEMENT OF FEDERALLY SPONSORED 10 is provided with the pockets 102 coordinated with supplementary tumbler bar 901b.The buckle boss 101 of STATEMENT OF FEDERALLY SPONSORED 10, coordinates with the snap-fit grooves 901a on the handle 9a of two overcurrent protection poles, realizes STATEMENT OF FEDERALLY SPONSORED 10 and is connected with the buckle of handle 9a, STATEMENT OF FEDERALLY SPONSORED 10 easy accessibility, is convenient to maintenance; STATEMENT OF FEDERALLY SPONSORED 10 is provided with the pockets 102 coordinated with the supplementary tumbler bar 901b of the assist handle 9b of residual current dropout pole; make STATEMENT OF FEDERALLY SPONSORED that the assist handle of residual current dropout pole and the handle of two overcurrent protection poles can be driven to close a floodgate simultaneously; when there is residual current fault in circuit, the assist handle of residual current dropout pole also can promote the handle separating brake simultaneously that STATEMENT OF FEDERALLY SPONSORED drives two overcurrent protection poles.The buckle boss 101 of described STATEMENT OF FEDERALLY SPONSORED 10 also can exchange with the buckle structure of the snap-fit grooves 901a on handle 9a.

Particularly, pockets 102 recessed bond ing of described supplementary tumbler bar 901b and STATEMENT OF FEDERALLY SPONSORED 10, pockets 102 1 side opening, opening side is towards the supplementary tumbler bar 901b of assist handle 9b, supplementary tumbler bar 901b can be driven during STATEMENT OF FEDERALLY SPONSORED 10 feed motion to close a floodgate together, during STATEMENT OF FEDERALLY SPONSORED 10 separating brake, do not drive supplementary tumbler bar 901b action.

As illustrated in figures 7 to 13, the snap-fit grooves 901a of the handle 9a of described two overcurrent protection poles is a side opening, and the snap-fit grooves 901a opening of the handle 9a of two overcurrent protection poles is oppositely arranged.The snap-fit grooves 901a of the handle 9a of two overcurrent protection poles is a side opening, and snap-fit grooves 901a opening is oppositely arranged to be convenient to be connected with STATEMENT OF FEDERALLY SPONSORED 10 buckle.

As shown in Figure 9, described STATEMENT OF FEDERALLY SPONSORED 10 is U-board, U-shaped mouth one end of gangbar 10 forms U-shaped groove 10a, and the middle part of described U-shaped groove 10a is provided with separates projection 10b, separates projection 10b and U-shaped groove 10a is divided into two cavitys coordinated with the handle 9a of two overcurrent protection poles respectively; The described buckle boss 101 be connected with the handle 9a of two overcurrent protection poles is located on the sidewall of two cavitys respectively, and the described pockets 102 coordinated with supplementary tumbler bar 901b is located on the separation projection 10b at middle part.The concrete structure of STATEMENT OF FEDERALLY SPONSORED 10.The structure of STATEMENT OF FEDERALLY SPONSORED 10 adopts and is symmetrical arranged, and improves the versatility of STATEMENT OF FEDERALLY SPONSORED 10.

Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.

Claims (10)

1. an isolating switch, comprise housing (1), be fixed on the test button (2) on housing (1), test loop (3B) and switch module, is characterized in that: described switch module comprises conducting bridge (3), resistance (4), the first stationary contact (51) and the second stationary contact (52); One end of described test loop (3B) is connected with resistance (4), the other end of resistance (4) is connected with the first stationary contact (51), and the other end wire (5) of test loop (3B) is connected with the second stationary contact (52); Conducting bridge (3) to be arranged on test button (2) for controlling the break-make of the first stationary contact (51) and the second stationary contact (52), is provided with back-moving spring (6) between test button (2) and housing (1).

2. isolating switch according to claim 1, is characterized in that: conducting bridge (3) is extended in one end of described back-moving spring (6).

3. isolating switch according to claim 1 and 2, it is characterized in that: described first stationary contact (51) and the second stationary contact (52) are positioned at the side of test button (2), conducting bridge (3) is extended to the first stationary contact (51) and the second stationary contact (52) side in one end of described back-moving spring (6), and conducting bridge (3) is positioned at the top of the first stationary contact (51) and the second stationary contact (52) when off-position.

4. isolating switch according to claim 3, it is characterized in that: described second stationary contact (52) is positioned between the first stationary contact (51) and test button (2), and the first stationary contact (51) is higher than the second stationary contact (52).

5. isolating switch according to claim 1, it is characterized in that: described housing (1) is provided with first fixed block (11) at fixed resistance (4) two ends, the middle part of the first fixed block (11) is provided with fixed groove (111); Described housing (1) is provided with second fixed block (12) of the other end of fixed resistance (4), second fixed block (12) is provided with and allows the other end end of resistance (4) through fixing fixed orifice (121), the other end of resistance (4), through after fixed orifice (121), is exposed at fixed orifice (121) part outward and forms the first stationary contact (51).

6. isolating switch according to claim 1, it is characterized in that: described housing (1) is provided with the 3rd fixed block (14) of the other end wire (5) in fixation test loop (3B), 3rd fixed block (14) is provided with the fixed via allowing one end wire (5) of test loop (3B) pass, one end wire (5) of test loop (3B) is through after fixed via, and the part of stretching out fixed via forms the second stationary contact (52).

7. isolating switch according to claim 1, it is characterized in that: the end of described test button (2) extends the spring fixed column (21) being provided with fixed reset spring (6) one end, described housing (1) is provided with spring anchor block (13), and spring anchor block (13) is provided with the pockets (131) holding back-moving spring (6) other end.

8. isolating switch according to claim 2, it is characterized in that: the side of described test button (2) is provided with the buckle arm (22) be clasped with housing (1), buckle arm (22) is provided with adjutage (23) to downward-extension, and the lower end of adjutage (23) is provided with the conducting bridge fixed groove (231) of fixing conducting bridge (3).

9. isolating switch according to claim 5, it is characterized in that: after the other end of resistance (4) is fixing by the first fixed block (11), is bent to form U-shaped bending segment (41) rearward end and is fixed by the second fixed block (12).

10. isolating switch according to claim 1, is characterized in that: also comprise residual current detection element (1B), drop-away reset mechanism (2B) and electromagnetic type relay (9B), (3B) is located at enclosure interior side in described test loop, for detecting internal circuit, described residual current detection element (1B) is located at housing bottom, is positioned at side, for whether there is residual current in testing circuit, described drop-away reset mechanism (2B) and electromagnetic type relay (9B) are oppositely arranged, and the striker of electromagnetic type relay (9B) ejects and can promote drop-away reset mechanism (2B) dropout, described drop-away reset mechanism (2B) comprises U-shaped bar (21b), snap close (22b), tripping (23b) and handle, described handle and U-shaped bar (21b), snap close (22b) and tripping (23b) are connected to form four-bar linkage structure, and the other end of tripping (23b) is connected with ejector return pin (24b), also comprise release lever (25b), described release lever (25b) one end pivotable is connected on housing, the other end can be stirred ejector return pin (24b) and rotate, one end of described ejector return pin (24b) is connected with spring leaf (241b), the side of spring leaf (241b) and the striker of electromagnetic type relay (9B) offset, opposite side and release lever (25b) are oppositely arranged, during dropout, the striker of electromagnetic type relay (9B) ejects and promotes spring leaf (241b), ejector return pin (24b) is driven to rotate, simultaneously spring leaf (241b) promotes release lever (25b) and drives ejector return pin (24b) to rotate to destroy the chain of snap close (22b) and tripping (23b).