CN209000852U - A kind of control and protective switching device - Google Patents

Abstract

The utility model discloses a kind of control and protective switching devices, it is related to protection of device for switching technical field, including pedestal, contact assembly, permanent-magnet manipulating mechanism and shell, bracket is provided on the pedestal, it is provided with microswitch and the actuator for opening/closing microswitch upper contact head on the bracket, the permanent-magnet manipulating mechanism includes the first electromagnet being fixedly installed on the inside of bracket and the second electromagnet to reciprocatingly slide towards the first electromagnet direction, the holder pivots are provided with STATEMENT OF FEDERALLY SPONSORED, one end of the STATEMENT OF FEDERALLY SPONSORED is set between the first electromagnet and the second electromagnet, reset spring is connected in the other end of STATEMENT OF FEDERALLY SPONSORED, the reset spring is connected on bracket far from one end of STATEMENT OF FEDERALLY SPONSORED, the STATEMENT OF FEDERALLY SPONSORED promotes actuator to be on bracket to slide by on/off electricity between the first electromagnet and the second electromagnet；Have the function of improving the stability and overall structural strength of its protective switch electric appliance at work.

Description

A kind of control and protective switching device

Technical field

The utility model relates to protective switch technical field of electric appliances, more specifically, it relates to which a kind of control and protection is opened Powered-down device.

Background technique

" control and protective switching device " is the novel product in low-voltage electrical apparatus, and being that China's the nineties are most newly developed fills out The first generation major class for mending domestic blank, as new major class product, product category code name is " CPS " (Control and Protective Switching Devices).From its structurally and functionally for, control and protective switch series of products are not It is the single products such as contactor or breaker or electrothermal relay again, but a set of Control protection system.

Its appearance fundamentally solves traditional use discrete component (usually breaker or fuse+contact Device+overload relay) due to select it is unreasonable caused by control and the unreasonable variety of problems of protection cooperation, especially overcome When due to using combining between the electric equipment products of different appraisal standards, protection feature and control characteristic cooperation are uncoordinated The phenomenon that, greatly improve the operational reliability and continuous operation performance of Control and protection system.

As Authorization Notice No. is CN204155882U, publication date is that 2 months 2015 No. 11 Chinese patents disclose one kind The auxiliary switch of control and protective switching device, including shell, connecting terminal, microswitch and slider, the terminals Attached bag includes input terminal and outlet terminal, and the slider includes static contact group and moving contact group, and the shell is set on one side It is equipped with the groove for link terminal, microswitch and slider, the static contact group, connecting terminal and microswitch It is connected by conducting wire.

Auxiliary switch is a part of main switch, is configured in control and protective switching device host and returns as secondary control Separating brake, combined floodgate, signal control and the interlock protection effect on road；It can also be used as stacked switch simultaneously and change-over switch use, It is the carrier of a complementary disjunction, connection, interlock realization in control system, by opening slider, fine motion It closes by conducting wire connection between connecting terminal, instead of by the electric connection mode of circuit board, auxiliary being allowed to open in the prior art Closing has better overcurrent capability；In above-mentioned control and protective switch device, auxiliary switch is attached to control and protection The shell side of device for switching, the electric elements in shell are carried out point by the interlocking mechanism between auxiliary switch and outer box/ It closes a floodgate, for being lacking in the stability and whole structure of control and protective switching device at work.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of control and protective switch electricity Device has the function of improving the stability and overall structural strength of its protective switch electric appliance at work.

To achieve the above object, the utility model provides following technical solution:

A kind of control and protective switching device, including pedestal, contact assembly, the permanent magnetic operating machine being respectively arranged on pedestal Structure, and the shell being covered on pedestal, are provided with bracket on the pedestal, be provided on the bracket microswitch with And the actuator for opening/closing microswitch upper contact head, the permanent-magnet manipulating mechanism include be fixedly installed on the inside of bracket One electromagnet and the second electromagnet to reciprocatingly slide towards the first electromagnet direction, the holder pivots are provided with STATEMENT OF FEDERALLY SPONSORED, institute The one end for stating STATEMENT OF FEDERALLY SPONSORED is set between the first electromagnet and the second electromagnet, is connected with reset bullet in the other end of STATEMENT OF FEDERALLY SPONSORED Spring, the reset spring are connected on bracket far from one end of STATEMENT OF FEDERALLY SPONSORED, and the STATEMENT OF FEDERALLY SPONSORED passes through the first electromagnet and the second electricity On/off electricity promotes actuator to be on bracket to slide between magnet.

So set, being set on pedestal by case lid, make shell to contact assembly, the permanent-magnet manipulating mechanism etc. on pedestal It is effectively protected；The first electromagnet and the second electricity when control and protective switching device is powered, in permanent-magnet manipulating mechanism It attracts each other between magnet, promotes the second electromagnet that STATEMENT OF FEDERALLY SPONSORED is driven to be on bracket and rotate, reset spring stress is drawn at this time It stretches, STATEMENT OF FEDERALLY SPONSORED linkage driving part makes microswitch be in the state closed and do not triggered；When control and protective switching device is anticipated When outer power-off or external power failure, no power between the first electromagnet and the second electromagnet, reset spring restores nature, the Two electromagnet are moved away from the first electromagnet direction, are in STATEMENT OF FEDERALLY SPONSORED on bracket and are rotated, and then linkage driving part is in bracket Upper sliding, the contact driven member on microswitch, which is opened, touches；When control and protective switching device is once again powered up, the first electricity It attracts each other between magnet and the second electromagnet, STATEMENT OF FEDERALLY SPONSORED, which is on bracket, rotates the movement of linkage actuator, makes microswitch In non-triggering conditions；Promoted between STATEMENT OF FEDERALLY SPONSORED and actuator by on/off electricity between the first electromagnet and the second electromagnet Mutually linkage reaches control microswitch and opens/closed state, improves its protective switch electric appliance stability at work and whole The effect of body structural strength.

Further setting: the actuator includes that driving spring, the drive rod being slideably positioned on bracket and fixation are set The limit shaft being placed on bracket slides along in the drive rod and offers stroke groove on direction, the limit shaft and driving Spring is all set in stroke groove, and cell wall of the both ends of the driving spring respectively with the limit shaft and stroke groove supports Touching.

So set, attract each other between the first electromagnet and the second electromagnet when control and protective switching device is powered, STATEMENT OF FEDERALLY SPONSORED is on bracket and rotates, and reset spring stress is stretched at this time, without stress condition, driving between STATEMENT OF FEDERALLY SPONSORED and drive rod It is initial position on bracket that bar is in by the connection relationship of driving spring and limit shaft, and microswitch is non-triggering conditions； It is obstructed between the first electromagnet and the second electromagnet when accident power-off or external power failure occur for control and protective switching device Electricity, reset spring restore nature, and the second electromagnet is moved away from the first electromagnet direction, are in STATEMENT OF FEDERALLY SPONSORED on bracket and turn Dynamic, STATEMENT OF FEDERALLY SPONSORED promotes drive rod be on bracket to slide, at the same by limit shaft be in stroke groove limitation drive rod in The lasting sliding of frame, driving spring are re-compressed at this time, and the contact on drive rod and microswitch contradicts, and microswitch is simultaneously It touches.

Further setting: one end of bracket is provided with limited block in the limit shaft, the width of the limited block is big It is arranged in the width of the stroke groove.

So set, being greater than the width of stroke groove by the width of design limited block, from limitation drive rod along limit shaft axis The purpose of line direction sliding improves drive rod and is in the stability slided on bracket.

Further setting: the stroke groove is symmetrically offered on the drive rod, and is respectively provided in stroke groove State limit shaft and driving spring.

So set, by the way that multiple stroke grooves are arranged, and corresponding limit shaft and driving spring are set, at drive rod When sliding on bracket, stability when drive rod is in sliding on bracket is improved.

Further setting: recessing groove, first electromagnet are offered close to the side of microswitch in the drive rod When being powered with the second electromagnet, the contact of the microswitch is in the recessing groove, first electromagnet and the second electricity When magnet powers off, the side wall of the contact of the microswitch and the drive rod is contradicted.

So set, the contact on microswitch is located on recessing groove for not when control and protective switching device is powered Triggering conditions；When accident power-off occurs for control and protective switching device or when external power failure, the contact on microswitch with allow Relative position occurs between the slot of position to change, the contact on microswitch is contradicted with the side wall of drive rod, and microswitch touches, and is mentioned Touch stability of the high drive rod to microswitch.

Further setting: the STATEMENT OF FEDERALLY SPONSORED includes connector, the cursor for being symmetrically disposed on connector two sides, is symmetrical arranged By the arm of force and it is fixedly installed on the connecting column of cursor one end in connector two sides, the cursor is set to stent outer And connect with holder pivots, it the connector and is all set on the inside of bracket by the arm of force, two described are passed through by between the arm of force Force rod connection, the force rod are set between first electromagnet and the second electromagnet, one end of the reset spring It is connect with the connecting column, one end far from connecting column of when power-off cursor and the actuator contradict.

So set, attract each other between the first electromagnet and the second electromagnet when control and protective switching device is powered, Promote the second electromagnet to stir mobile by the arm of force, and then be in STATEMENT OF FEDERALLY SPONSORED on bracket and rotate, reset spring stress is drawn at this time It stretches, without stress condition between cursor and actuator, actuator is on bracket as initial position, and the contact on microswitch For non-triggering conditions；When accident power-off or external power failure occur for control and protective switching device, the first electromagnet and second No power between electromagnet, reset spring restore nature, and the second electromagnet moves away from the first electromagnet direction, makes to link Part is on bracket and rotates, and then contradicts the one end of cursor far from connecting column and actuator, and actuator is promoted to be in branch It is slided on frame, the contact on microswitch and actuator contradict, and microswitch touches, and improve its protective switch electric appliance at work Stability and overall structural strength effect.

Further setting: the contact assembly includes static contact, and moving contact, the first electricity are provided on the connector The moving contact and static contact contradict when powering off between magnet and the second electromagnet.

So set, when microswitch is non-triggering conditions, moving contact is separated with static contact, when microswitch is to touch shape When state, moving contact is contacted with static contact, improves its stability of protective switch electric appliance at work.

Further setting: described by the angle formed between the arm of force and cursor is 60 ~ 100 °.

So set, when STATEMENT OF FEDERALLY SPONSORED is on bracket and rotates, improve STATEMENT OF FEDERALLY SPONSORED be in the stability that is rotated on bracket with And actuator is driven to be in the operability slided on bracket.

Further setting: two microswitches are symmetrically disposed on the actuator two sides.

So set, opening/closed state convenient for touch microswitch simultaneously by actuator.

Further setting: the two sides on the pedestal are symmetrically arranged with convex block, offer on the housing and convex block The blocked hole matched, when the case lid is set on the pedestal, the convex block is connected in the blocked hole.

So set, being connected in blocked hole by convex block, makes the other end port cap of shell together on pedestal, improve shell Stability that body is connect with pedestal, convenient for the effect of Fast Installation and disassembly.

By using above-mentioned technical proposal, the utility model is compared compared with the prior art, is had the advantage that

1, by the two sides in framework be respectively arranged in connection shell the inscribed line socket of element and for connecting it is outer The external line socket of element is connect, to improve control and protective switching device applicable performance；

2, by the way that shell is divided into framework and is detachably fixed the switch cover plate being set in framework, display cover respectively Plate, realize switch cover plate, display coversheet positioning sliding be connected in framework, convenient for shell carry out maintenance and the later period add again The effect of work processing, improves the convenience reprocessed to the shell later period；

3, promote mutually to interconnect between STATEMENT OF FEDERALLY SPONSORED and actuator by on/off electricity between the first electromagnet and the second electromagnet Dynamic, reach control microswitch opens/closed state, improves the stability and overall structure of its protective switch electric appliance at work The effect of intensity.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of control and protective switching device；

Fig. 2 is the explosive view of control and protective switching device；

Fig. 3 is the structural schematic diagram of control and protective switching device cover plate sliding mode；

Fig. 4 is the structural schematic diagram of switch cover plate disassembly in control and protective switching device；

Fig. 5 is the structural schematic diagram that cover board is removed in control and protective switching device；

Fig. 6 is the structural schematic diagram of display coversheet in control and protective switching device；

Fig. 7 is the cross-sectional view of switch cover plate fore-and-aft plane in control and protective switching device；

Fig. 8 is partial structural diagram when control and protective switching device is powered；

Fig. 9 is partial structural diagram when control and protective switching device powers off；

Figure 10 is the structural schematic diagram of permanent-magnet manipulating mechanism and actuator, STATEMENT OF FEDERALLY SPONSORED in control and protective switching device；

Figure 11 is the structural schematic diagram of permanent-magnet manipulating mechanism and STATEMENT OF FEDERALLY SPONSORED in control and protective switching device；

Figure 12 is the structural schematic diagram of actuator in control and protective switching device.

In figure: 1, shell；11, pedestal；111, convex block；12, contact assembly；121, static contact；13, electronic transformer；14, Permanent-magnet manipulating mechanism；141, the first electromagnet；142, the second electromagnet；2, cover board；21, switch cover plate；211, through-hole is switched； 212, the first guide groove；213, limiting slot；214, clamped piece；22, display coversheet；221, display through-hole；222, indicator light is logical Hole；223, button pass through hole；224, the second guide groove；225, grafting block；3, framework；31, the first side plate；311, the first guide rail；312, Second guide rail；32, the second side plate；321, limit plate；322, embeded slot；323, inserting groove；324, jack-plug socket；325, arc Slot；33, blocked hole；34, mounting plate；4, connector socket；41, line socket is inscribed；42, external line socket；421, arc fixture block；5, Bracket；6, microswitch；7, actuator；71, driving spring；72, drive rod；73, limit shaft；74, stroke groove；75, limited block； 76, recessing groove；8, STATEMENT OF FEDERALLY SPONSORED；81, connector；82, cursor；83, by the arm of force；84, connecting column；85, reset spring；86, it moves Contact；87, force rod.

Specific embodiment

Control and protective switching device is described further referring to attached drawing.

A kind of control and protective switching device, as depicted in figs. 1 and 2, including pedestal 11, it is respectively arranged on pedestal 11 Contact assembly 12, electronic transformer 13, permanent-magnet manipulating mechanism 14, and the shell 1 being covered on pedestal 11.

As shown in Figures 2 and 3, wherein shell 1 includes cover board 2 and two pairs of symmetrically arranged first side plates 31, second side Plate 32；Between first side plate 31 and the second side plate 32 rectangular integral type connect and formed in lead to framework 3, cover board 2 be arranged In on one end port of the framework 3 and sealing the end port.

As shown in Figure 1, two sides on the base 11 are symmetrically arranged with convex block 111, and offer on the first side plate 31 with The blocked hole 33 that convex block 111 matches, when the other end port cap of shell 1 is together on pedestal 11, convex block 111 is connected in the card It connects in hole 33, realizes and be fixedly connected with effect between shell 1 and pedestal 11.As shown in Fig. 2, in two first side plates 31 towards pedestal 11 One end be respectively connected with mounting plate 34, blocked hole 33 is set on mounting plate 34.

In conjunction with shown in Fig. 2 and Fig. 3, cover board 2 includes switch cover plate 21 and display coversheet 22, on switch cover plate 21 The switch through-hole 211 for installing switch knob is offered, is offered respectively on display coversheet 22 for installing display Display through-hole 221, the indicator light through-hole 222 for installing indicator light and the button pass through hole for installing controller buttons 223；And switch cover plate 21 and display coversheet 22 are detachably set on one end port of framework 3 and seal the end end Mouthful.

As shown in figure 4, being respectively arranged with the first guide rail 311 on two first side plates 31, and the first guide rail 311 is connected to Cross section when on side plate 31 is arranged in inverted L shape, meanwhile, it is symmetrically arranged with and the first guide rail in the two sides of switch cover plate 21 First guide groove 212 of 311 sliding gomphosis realizes that switch cover plate 21 is only sliding along 311 length direction of the first guide rail as shown in connection with fig. 3 It is dynamic to be set in framework 3.

In conjunction with shown in Fig. 3 and Fig. 4, the one of 311 glide direction of the first guide rail is in towards switch cover plate 21 in the second side plate 32 Side is provided with limit plate 321, one end of switch cover plate 21 towards the second side plate 32 is provided with limiting slot 213, switch cover plate 21 covers Limiting slot 213 is connected on limit plate 321 when together in framework 3, realizes that switch cover plate 21 is in the work of 3 upper limit of framework sliding With.

As shown in figure 4, embeded slot 322 is offered on limit plate 321, the depth direction and switch cover plate of embeded slot 322 The 21 direction parallel arrangements slided in framework 3, meanwhile, clamped piece 214 is provided on limiting slot 213, in conjunction with Fig. 3 institute Show, switch cover plate 21 is connected in the embeded slot 322 for clamped piece 214 when being covered in framework 3, is improved switch cover plate 21 and is in Stability in framework 3.

As shown in figure 5, similarly, being respectively arranged with second in the side far from the first guide rail 311 of two first side plates 31 and leading Rail 312, and cross section when the second guide rail 312 is connected on the first side plate 31 is arranged in inverted L shape；As shown in fig. 6, in display The two sides of cover board 22 are symmetrically arranged with second guide groove 224 chimeric with the second guide rail 312, as shown in connection with fig. 3, realize display cover Plate 22 is only slideably positioned in framework 3 along 312 length direction of the second guide rail.

As shown in Figure 5 and Figure 6, it is in 3 glide direction of framework in display coversheet 22 and is provided with grafting block 225, it is multiple Grafting block 225 and offers on the second side plate 32 multiple with grafting block 225 along the length direction arranged for interval of the second side plate 32 Correspond the inserting groove 323 of arrangement；Grafting block 225 is connected in inserting groove 323 when display coversheet 22 is covered in framework 3 It is interior, it improves display coversheet 22 and is in the stability in framework 3.

As shown in Fig. 2, offer jack-plug socket 324 on the second side plate 32, jack-plug socket 324 is circle, rectangle, just Polygon, ellipse in any one；Connector socket 4, as shown in connection with fig. 5, connector socket are respectively connected at two jack-plug sockets 324 4 points are in being set to framework 3 for connecting the inscribed line socket 41 of element in shell 1 and being set to outside framework 3 outer for connecting Connect the external line socket 42 of element.

As shown in figure 5, the L-shaped setting in the cross section of external line socket 42, and one end of external line socket 42 is plugged in and connects Element in line jack 324 for being connected in framework 3, the other end are placed in outside framework 3 for connecting outward element.

As shown in figure 5, being provided with arc fixture block on the side wall that external line socket 42 is plugged in 324 one end of jack-plug socket 421, the arc groove 325 matched with arc fixture block 421 is offered on the side wall of jack-plug socket 324；Arc fixture block 421 is along outer The length direction of connector socket 42 be provided with it is multiple, and arc groove 325 correspond in arc fixture block 421 be arranged；It improves external Line socket 42 is plugged in the contact area of jack-plug socket 324, and then improves the stable connection between external line socket 42 and framework 3 Property.

As shown in connection with fig. 7, thickness of the thickness of mounting plate 34 less than the first side plate 31, and the outer wall of mounting plate 34 and first The outer wall of side plate 31 is concordantly arranged.

As shown in figure 8, pedestal 11 has been bolted to connection bracket 5, symmetrically it is fixedly installed in the side of bracket 5 micro- Dynamic switch 6, is provided with the actuator 7 for opening/closing 6 upper contact head of microswitch between two microswitches 6.

As shown in Figure 10, permanent-magnet manipulating mechanism 14 includes the first electromagnet 141 and the court for being fixedly installed on 5 inside of bracket The second electromagnet 142 that first electromagnet, 141 direction reciprocatingly slides；Rotation is provided with STATEMENT OF FEDERALLY SPONSORED 8 on bracket 5, STATEMENT OF FEDERALLY SPONSORED 8 One end is set between the first electromagnet 141 and the second electromagnet 142, is connected with reset spring 85 in the other end of STATEMENT OF FEDERALLY SPONSORED 8, Reset spring 85 is connected on bracket 5 far from one end of STATEMENT OF FEDERALLY SPONSORED 8, and original state is tensional state；STATEMENT OF FEDERALLY SPONSORED 8 passes through first On/off electricity between electromagnet 141 and the second electromagnet 142, promotes STATEMENT OF FEDERALLY SPONSORED 8 to act on actuator 7 and be on bracket 5 and slides, And then have the function that open/close microswitch 6.

As shown in figure 12, actuator 7 includes driving spring 71, the drive rod 72 being slideably positioned on bracket 5 and fixes The limit shaft 73 being set on bracket 5；It is slid along in drive rod 72 and offers stroke groove 74 on direction, stroke groove 74 is settable Have it is multiple, present specification preferably two, and two stroke grooves, 74 72 length directions of drive rod are arranged symmetrically.

In conjunction with shown in Figure 10 and Figure 12, it is provided with limit shaft 73 and driving spring 71 in two stroke grooves 74, drives bullet 71 original state of spring is compressive state, and both ends are contradicted with limit shaft 73 and the cell wall of stroke groove 74 respectively.Also, it is limiting Axis 73 is provided with limited block 75 far from one end of bracket 5, and the width that the width of limited block 75 is greater than the stroke groove 74 is arranged, The purpose slid from limitation drive rod 72 along 73 axis direction of limit shaft.

As shown in figure 12, recessing groove 76 is symmetrically offered close to the two sides of microswitch 6 in drive rod 72, when the first electricity When magnet 141 and the second electromagnet 142 are powered, the elastic force of driving spring 71 is recovery state, the contact point on two microswitches 6 Other places are in the recessing groove 76 of 72 two sides of drive rod；As shown in connection with fig. 9, when the first electromagnet 141 and the second electromagnet 142 are obstructed When electric, driving spring 71 is compressive state, and the contact on two microswitches 6 offsets with the two sides side wall respectively with drive rod 72 Touching.

As shown in figure 11, STATEMENT OF FEDERALLY SPONSORED 8 includes connector 81, is the cursor 82 that is symmetrically disposed on 81 two sides of connector, symmetrical Be set to 81 two sides of connector by the arm of force 83 and be fixedly installed on the connecting column 84 of 82 one end of cursor；Positioned at connector 81 The same side is 60 ~ 100 ° by the angle formed between the arm of force 83 and cursor 82, this programme by the arm of force 83 and cursor 82 it Between to be arranged vertically.

As shown in Figure 10 and Figure 11, cursor 82 is set to 5 outside of bracket and is rotatablely connected with bracket 5, connector 81 And 5 inside of bracket is all set in by the arm of force 83；Two are connected by force rod 87 is passed through between the arm of force 83, and force rod 87 is set to the Between one electromagnet 141 and the second electromagnet 142, one end of reset spring 85 is connect with connecting column 84；As shown in connection with fig. 9, when Between first electromagnet 141 and the second electromagnet 142 when no power, reset spring 85 restores nature, and cursor 82 is separate One end of connecting column 84 and drive rod 72 contradict, and driving spring 71 is compressive state at this time, and two microswitches 6 touch.

As shown in figures 9 and 11, contact assembly 12 includes static contact 121, is provided on connector 81 and static contact 121 one-to-one moving contacts 86 pass through reset spring 85 when powering off between the first electromagnet 141 and the second electromagnet 142 Active force contradicts its moving contact 86 and static contact 121.

Working principle: by dividing for framework 3 and being detachably fixed the switch cover being set in framework 3 respectively shell 1 Plate 21, display coversheet 22；And it is realized by the first guide rail 311, the second guide rail 312, the first guide groove 212, second guide groove 224 etc. Switch cover plate 21, the positioning sliding of display coversheet 22 are connected in framework 3, then pass through limit plate 321, embeded slot 322, grafting block 225, inserting groove 323 realizes that switch cover plate 21, display coversheet 22 are mounted in the effect in framework 3；When needing to shell 1 When carrying out surface processing or nameplate and labelling, by switch cover plate 21, display coversheet 22 be respectively in framework 3 sliding and by its Disassembly, corresponding working process is being carried out respectively to switch cover plate 21, display coversheet 22, reach to shell 1 safeguarded with And the effect of later period reprocessing processing；Meanwhile the internal wiring for connecting element in shell 1 is set in the two sides of framework 3 respectively Socket 41 and external line socket 42 for connecting outward element improve control and protective switching device applicable performance.

It when control and protective switching device is powered, attracts each other, promotees between the first electromagnet 141 and the second electromagnet 142 Stir the second electromagnet 142 mobile by the arm of force 83, and then be in STATEMENT OF FEDERALLY SPONSORED 8 on bracket 5 and rotate, at this time reset spring 85 by Power is stretched, without stress condition between cursor 82 and drive rod 72；Drive rod 72 passes through driving spring 71 and limit shaft 73 Connection relationship be on bracket 5 as initial position, and it is not touch shape on recessing groove 76 that the contact on microswitch 6, which is located at, State, moving contact 86 are separated with static contact 121.

When accident power-off or external power failure occur for control and protective switching device, the first electromagnet 141 and the second electricity No power between magnet 142, reset spring 85 restore nature, and the second electromagnet 142 is transported away from 141 direction of the first electromagnet It is dynamic, it is in STATEMENT OF FEDERALLY SPONSORED 8 on bracket 5 and rotates, and then contradict the one end of cursor 82 far from connecting column 84 and drive rod 72, and Promote drive rod 72 to be on bracket 5 to slide, while limitation drive rod 72 in stroke groove 74 is in by limit shaft 73 and is in branch It is persistently slided on frame 5, driving spring 71 is re-compressed at this time, is occurred between the contact and recessing groove 76 on two microswitches 6 Relative position changes, and the contact on microswitch 6 is contradicted with the side wall of drive rod 72, and two microswitches 6 touch simultaneously, moves touching First 86 contact with static contact 121；When control and protective switching device is once again powered up, the first electromagnet 141 and the second electromagnet It attracts each other between 142, STATEMENT OF FEDERALLY SPONSORED 8 is on bracket 5 and rotates, and the power acted on drive rod 72 is made to disappear, and drive rod 72 is logical The power that spring 71 of overdriving generates when restoring, which is on bracket 5, to be slided, and the contact on two microswitches 6, which is located on recessing groove 76, is Non- triggering conditions, moving contact 86 are separated with static contact 121, improve its protective switch electric appliance at work and power-off when stabilization The effect of property and overall structural strength.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (10)

1. a kind of control and protective switching device, including pedestal (11), be respectively arranged at contact assembly (12) on pedestal (11), Permanent-magnet manipulating mechanism (14), and the shell (1) being covered on pedestal (11), it is characterised in that: set on the pedestal (11) Bracket (5) are equipped with, microswitch (6) are provided on the bracket (5) and for opening/closing microswitch (6) upper contact head Actuator (7), the permanent-magnet manipulating mechanism (14) include be fixedly installed on the first electromagnet (141) on the inside of bracket (5) and The second electromagnet (142) to reciprocatingly slide towards the first electromagnet (141) direction, bracket (5) rotation are provided with STATEMENT OF FEDERALLY SPONSORED (8), one end of the STATEMENT OF FEDERALLY SPONSORED (8) is set between the first electromagnet (141) and the second electromagnet (142), in STATEMENT OF FEDERALLY SPONSORED (8) The other end be connected with reset spring (85), the reset spring (85) is connected to bracket (5) far from the one end of STATEMENT OF FEDERALLY SPONSORED (8) On, the STATEMENT OF FEDERALLY SPONSORED (8) promotes actuator (7) by on/off electricity between the first electromagnet (141) and the second electromagnet (142) It is slided on bracket (5).

2. a kind of control and protective switching device according to claim 1, it is characterised in that: the actuator (7) includes Driving spring (71), the drive rod (72) being slideably positioned on bracket (5) and the limit shaft being fixedly installed on bracket (5) (73), it slides along and is offered on direction stroke groove (74) in the drive rod (72), the limit shaft (73) and driving bullet Spring (71) is all set in stroke groove (74), and the both ends of the driving spring (71) respectively with the limit shaft (73) and row The cell wall of journey slot (74) contradicts.

3. a kind of control and protective switching device according to claim 2, it is characterised in that: remote in the limit shaft (73) One end from bracket (5) is provided with limited block (75), and the width of the limited block (75) is greater than the width of the stroke groove (74) Setting.

4. a kind of control and protective switching device according to claim 2 or 3, it is characterised in that: in the drive rod (72) it is symmetrically offered on the stroke groove (74), and is provided with the limit shaft (73) and driving in stroke groove (74) Spring (71).

5. a kind of control and protective switching device according to claim 2 or 3, it is characterised in that: in the drive rod (72) side close to microswitch (6) offers recessing groove (76), first electromagnet (141) and the second electromagnet (142) when being powered, the contact of the microswitch (6) be in the recessing groove (76), first electromagnet (141) and the When two electromagnet (142) power off, the contact of the microswitch (6) and the side wall of the drive rod (72) are contradicted.

6. a kind of control and protective switching device according to claim 1, it is characterised in that: the STATEMENT OF FEDERALLY SPONSORED (8) includes Connector (81), the cursor (82) for being symmetrically disposed on connector (81) two sides, be symmetrically disposed on connector (81) two sides by The arm of force (83) and the connecting column (84) for being fixedly installed on cursor (82) one end, the cursor (82) are set to bracket (5) Outside is simultaneously all set on the inside of bracket (5) with bracket (5) rotation connection, the connector (81) and by the arm of force (83), and two Described to be connected by force rod (87) are passed through between the arm of force (83), the force rod (87) is set to first electromagnet (141) Between the second electromagnet (142), one end of the reset spring (85) is connect with the connecting column (84), when power-off described in turn Swing arm (82) one end and the actuator (7) far from connecting column (84) contradict.

7. a kind of control and protective switching device according to claim 6, it is characterised in that: contact assembly (12) packet Static contact (121) have been included, have been provided on the connector (81) moving contact (86), the first electromagnet (141) and the second electromagnetism The moving contact (86) and static contact (121) contradict when powering off between iron (142).

8. a kind of control and protective switching device according to claim 6, it is characterised in that: it is described by the arm of force (83) with turn The angle formed between swing arm (82) is 60 ~ 100 °.

9. a kind of control and protective switching device according to claim 1, it is characterised in that: two microswitches (6) It is symmetrically disposed on the actuator (7) two sides.

10. a kind of control and protective switching device according to claim 1, it is characterised in that: on the pedestal (11) Two sides be symmetrically arranged with convex block (111), the blocked hole (33) matched with convex block (111) is offered on the shell (1), When the shell (1) is covered on the pedestal (11), the convex block (111) is connected in the blocked hole (33).