CN203746741U - Large-current self-heat dissipation vacuum contactor - Google Patents
Large-current self-heat dissipation vacuum contactor Download PDFInfo
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- CN203746741U CN203746741U CN201420090700.XU CN201420090700U CN203746741U CN 203746741 U CN203746741 U CN 203746741U CN 201420090700 U CN201420090700 U CN 201420090700U CN 203746741 U CN203746741 U CN 203746741U
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Abstract
The utility model discloses a large-current self-heat dissipation vacuum contactor, which comprises a rear substrate and a front substrate. The inner side of the rear substrate is provided with an auxiliary switch, a static armature plate and a secondary power supply module; a static iron core and a coil are arranged on the static armature plate; a moving armature plate is arranged between the static iron core and the front substrate; an opening spring is arranged between the moving armature plate and the static armature plate; a plate striking bolt is arranged at the inner side of the upper part of the moving armature plate; one end of the auxiliary switch is provided with a contact; static line outgoing bars and moving line outgoing bars are respectively arranged above and below the outside of the front substrate; a vacuum switching tube is arranged between each static line outgoing bar and each moving line outgoing bar; a static conductive rod and a moving conductive rod of each vacuum switching tube are respectively connected with the static line outgoing bar and the moving line outgoing bar; a rotary shaft is arranged below the moving armature plate; a crank arm is arranged between the rotary shaft and the moving conductive rod; one end of the crank arm is fixed on the rotary shaft, and the other end of the crank arm is connected with the moving conductive rod; the vacuum switching tubes are arranged between the static line outgoing bars and the moving line outgoing bars, and the outer extending sections of the static conductive rods of the vacuum switching tubes are fixed with heat dissipation pieces. According to the large-current self-heat dissipation vacuum contactor, the heat dissipation effects are good, and the need that 30% to 70% rated current is increased in the condition where the size of the vacuum contactor is not changed can be met.
Description
Technical field
The utility model relates to a kind of appliance switch.Specifically, be that electricity for photovoltaic generation, wind power plant are sent is transported to large electric current in electrical network from heat radiation vacuum contactor.
Background technology
In recent years, along with the continuous acceleration of new forms of energy and continuing to increase of new forms of energy power, the generated output of generation of electricity by new energy equipment that resembles photovoltaic generation and wind power generation and so on is more and more higher, and this just requires the rated current of supporting with it vacuum contactor also will strengthen.Once rated current increases, for avoiding the temperature harm bringing to vacuum contactor that raises, volume that just must increase vacuum contactor.And the volume of increase vacuum contactor can increase again production cost.Therefore, how in the constancy of volume situation of vacuum contactor, strengthening its rated current, can not make again vacuum contact actuator temperature raise and bring harm, is a great problem that vacuum contactor manufacturing will solve.
All know in the electrical equipment field of manufacturing, the vital part of vacuum contactor is vacuum switch tube.And the heat dispersion quality of vacuum switch tube is the key point that determines its rated operational current size.Traditional vacuum switch tube contains ceramic package, and bar hole is all arranged at the top of ceramic package and bottom, and top bar is fixed with static conductive rod in hole, and bottom is fixed with moving conductive rod in bar hole.There is fixed contact described static conductive rod inner end, and there is moving contact moving conductive rod inner end.Because the vacuum switch tube of this structure is not taked cooling measure, radiating effect is poor, cannot meet the needs that strengthen its rated current in the constancy of volume situation of vacuum contactor.
Utility model content
Problem to be solved in the utility model is to provide a kind of large electric current from heat radiation vacuum contactor.This vacuum contactor, good heat dissipation effect, can meet the needs that improve its rated current 30% to 70% in the constancy of volume situation of vacuum contactor.
For addressing the above problem, the utility model is taked following technical scheme:
Large electric current of the present utility model, from heat radiation vacuum contactor, comprises metacoxal plate, prebasal plate, and described metacoxal plate is iron plate, between the same vertical both sides of forward and backward substrate, links together by side plate.On metacoxal plate medial surface, be fixed with successively auxiliary switch, static gag bit plate and secondary power supply module from top to bottom, on described static gag bit plate, be fixed with static iron core, on static iron core, have coil.Described coil is all connected with secondary power supply module by wire with auxiliary switch.Between static iron core and prebasal plate, have can with static iron core contact or the moving armature plate separating, between moving armature plate and static gag bit plate, be connected with tripping spring, the screw that re-packs inside moving armature plate top, there is contact auxiliary switch one end relative with the screw that re-packs.The outside bottom and upper segment of prebasal plate has respectively quiet outlet row and moving outlet row, and between quiet outlet row and moving outlet row and prebasal plate, is insulation shape and coordinates.Between quiet outlet row and moving outlet row, have vacuum switch tube, the static conductive rod of vacuum switch tube is connected with moving outlet row with quiet outlet row respectively with moving conductive rod.Moving armature plate has the rotating shaft that is horizontal arrangement below, and rotating shaft two ends are moving type and are arranged on biside plate.Between rotating shaft and moving conductive rod, have connecting lever, this connecting lever is electrical insulator, and one end of connecting lever is fixed in rotating shaft, and the other end of connecting lever is connected with moving conductive rod by back-moving spring.Between quiet outlet row and moving outlet row, all there is vacuum switch tube.It is characterized in that being fixed with at least two fin on overhanging section of described static conductive rod.
The contiguous circle centre position thickness of described fin is thicker than its surrounding, and is processed with bar hole at circle centre position, after making described fin be through on static conductive rod by the bar hole on it and stacking together, between the surrounding of adjacent fin, forms spacing.
Described prebasal plate is iron plate, on its outer surface, has Insulating frame, and described quiet outlet row and moving outlet row are fixed on Insulating frame.
There is axial screw described moving conductive rod lower end, the connecting lever one end Shang Yougan hole adjacent with pull bar, and pull bar upper end is successively through screwing in the screw of moving conductive rod lower end after the bar hole of connecting lever one end, locking nut.Described back-moving spring is enclosed within on that section of pull bar between locking nut and connecting lever.
Described Insulating frame has laterally outer chimb below, laterally on outer chimb, has supporting bracket.The top of described supporting bracket is horizontal, and bottom is vertical shape, and its top is fixed on described laterally outer chimb.Described moving outlet row is connected to the bottom of supporting bracket.Described moving conductive rod lower end is connected with conductive clip, between conductive clip and moving outlet row, is connected by flexible conductor.
Described secondary power supply module contains control circuit, microprocessor, infrared receipts and connects device and UBS interface.
There is axis hole described moving armature plate top, is fixed with minor axis in axis hole.On the static gag bit plate relative with this minor axis and metacoxal plate, there is axis hole, in axis hole, have adjustment screw.One end of described tripping spring is connected with described minor axis inner end, and the other end is fixed with nut, and described adjustment screw is screwed in this nut.
Described moving armature plate top inner side is connected with connecting plate, and the top of this connecting plate first bends inwards and is after level more upwards bending and is vertical, thereby makes its upper, middle and lower segment form respectively perpendicular section, horizontal segment and lower vertical piece.Upper perpendicular section upper and lower perpendicular section of connecting plate all has axis hole, and connecting plate lower end is fixed on the top of moving armature plate by the axis hole on its lower vertical piece, hold-down nut and minor axis.The described screw that re-packs is fixed on connecting plate and erects in the axis hole in section.
Take such scheme, have the following advantages:
As can be seen from the above scheme, because the utility model is fixed with fin on overhanging section of described static conductive rod, by plural fin is set, can improve the heat dispersion of vacuum switch tube and even vacuum contactor, and then meet the needs that strengthen its rated current in the constancy of volume situation of vacuum contactor.
Brief description of the drawings
Fig. 1 is that large electric current of the present utility model is from heat radiation vacuum contactor structural representation;
Fig. 2 is the A-A cross-sectional schematic ("on" position) of Fig. 1;
Fig. 3 is the A-A cross-sectional schematic (gate-dividing state) of Fig. 1.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, large electric current of the present utility model comprises metacoxal plate 17, prebasal plate 21 from heat radiation vacuum contactor, described prebasal plate 21 and metacoxal plate 17 are iron plate, between the same vertical both sides of prebasal plate 21 and metacoxal plate 17, link together by side 16 and securing member, securing member is wherein made up of screw bolt and nut.In the middle of metacoxal plate 17 medial surfaces, be provided with static gag bit plate 9, described static gag bit plate 9 is fixed on the medial surface of metacoxal plate 17 by screw.On static gag bit plate 9 medial surfaces, be provided with static iron core 10, this static iron core is fixed together by bolt 11 and static gag bit plate 9.On static iron core 10 external diameters, be wound with coil 8.Under static gag bit plate 9, be provided with secondary power supply module 35, described secondary power supply module 35 is connected with coil 8 and auxiliary switch 18 by wire.Wherein, secondary power supply module 35 contains control circuit, microprocessor, infrared receipts and connects device and UBS interface, makes large electric current of the present utility model can realize the intellectualized operation of the automatic control functions such as Long-distance Control, wireless remote control communication and computer networking from heat radiation vacuum contactor.
Between static iron core 10 and prebasal plate 21, be provided with the moving armature plate 34 that can contact or separate with static iron core 10.Moving armature plate 34 tops are processed with axis hole, are fixed with minor axis 22 in axis hole.On the static gag bit plate 9 relative with this minor axis and metacoxal plate 17, be all processed with axis hole, adjustment screw 13 is installed in axis hole, between adjustment screw 13 and minor axis 22, be provided with tripping spring 14.One end of described tripping spring 14 is connected with described minor axis 22 inner ends, and the other end is fixed with nut 12, and described adjustment screw 13 is screwed in this nut.Described static gag bit plate 9 tops are provided with auxiliary switch 18, and auxiliary switch 18 one end are fixed on metacoxal plate 17 by contiguous block 15.Moving armature plate 34 tops inner sides are provided with connecting plate 20, and the top of this connecting plate first bends inwards and is after level more upwards bending and is vertical, thereby make its upper, middle and lower segment form respectively perpendicular section, horizontal segment and lower vertical piece.Upper perpendicular section upper and lower perpendicular section of connecting plate 20 is all processed with axis hole, and connecting plate 20 lower ends are fixed on the top of moving armature plate 34 by the axis hole on its lower vertical piece, hold-down nut and minor axis 22.Between the front of motor of connecting plate 20 and auxiliary switch 18, be provided with the screw 19 that re-packs, described in the screw 19 that re-packs be fixed on connecting plate 20 in the axis hole in perpendicular section.Auxiliary switch 18 one end relative with the screw 19 that re-packs are provided with contact.Under "on" position, the contact of auxiliary switch 18 one end fits together with screw 19 one end that re-pack.On the outer surface of described prebasal plate 21, be fixed with Insulating frame 1, at upper three quiet outlet rows 2 and three the moving outlet rows 7 of being fixed with respectively below of Insulating frame 1, making vacuum contactor of the present utility model is three utmost point vacuum contactors.By Insulating frame 1, make to be insulation shape between quiet outlet row 2 and moving outlet row 7 and prebasal plate 21 and coordinate.Between each extremely quiet outlet row 2 and each extremely moving outlet row 7, be provided with a vacuum switch tube, described vacuum switch tube contains ceramic package 4, the top of ceramic package 4 and bottom are all processed with bar hole, in described top bar hole, fixing static conductive rod 3, arranges in bar hole, bottom between moving conductive rod 5 and moving conductive rod 5 and bar hole, bottom and is and is slidably matched.Described static conductive rod 3 inner ends are fixed with fixed contact 24, and moving conductive rod 5 inner ends are fixed with moving contact 25.Under "on" position, described fixed contact 24 fits together with moving contact 25.Wherein, static conductive rod 3 overhanging ends of vacuum switch tube are connected with quiet outlet row 2 by locking nut.Wherein, the non-adjacent end of described static conductive rod and moving conductive rod stretch out respectively outside the top of ceramic package 4 and bottom outside, on overhanging section of described static conductive rod 3, be all fixed with multiple fin 23, in the present embodiment, be all fixed with three fin 23 on overhanging section of static conductive rod 3.The contiguous circle centre position thickness of described fin 23 is thicker than its surrounding, and be processed with bar hole at circle centre position, three fin 23 are through on static conductive rod 3 and after stacking together by the bar hole on it, can between the surrounding of adjacent fin 23, form spacing, thereby can increase the area of dissipation of fin 23.
Insulating frame 1 is processed with laterally outer chimb 28 below, laterally on outer chimb 28, is fixed with supporting bracket 29.The top of described supporting bracket 29 is horizontal, and bottom is vertical shape, and its top is fixed on described laterally outer chimb 28.Described moving outlet row 7 is connected to the bottom of supporting bracket 29.Described moving conductive rod 5 lower ends are connected with conductive clip 26, between conductive clip 26 and moving outlet row 7, are connected by flexible conductor 6.
Moving armature plate 34 is provided with the rotating shaft 33 that is horizontal arrangement below, is all processed with axis hole on the correspondence position of described biside plate 16, and rotating shaft 33 two ends are moving type to be stretched in corresponding axis hole, makes to be between rotating shaft 33 two ends and biside plate 16 that rotatable shape is movable to be coordinated.Between rotating shaft 33 and moving conductive rod 5, be provided with connecting lever 32.Described connecting lever 32 is electrical insulator, and one end of connecting lever 32 is fixed in rotating shaft 33 by screw.Between connecting lever 32 and moving conductive rod 5, be provided with pull bar 30, moving conductive rod 5 lower ends are processed with axial screw, on connecting lever 32 one end adjacent with pull bar 30, be processed with bar hole, pull bar 30 upper ends screw in the screw of moving conductive rod 5 lower ends through behind the bar hole of connecting lever 32 one end, and make to be fixed together between pull bar 30 upper ends and moving conductive rod 5 by a locking nut 27.In addition, on that section of pull bar 30 between locking nut 27 and connecting lever 32, also cover has back-moving spring 31.By screwing pull bar 30 and under the effect of back-moving spring 31, tightness between adjustable moving conducting rod 5 and connecting lever 32, thereby guarantee can realize synchroswitching or separating brake between the fixed contact 24 of static conductive rod 3 inner ends of each vacuum switch tube and the moving contact 25 of moving conductive rod 5 inner ends, greatly improved the quality of vacuum contactor.
In the time must closing a floodgate, send a large direct current of forward by secondary power supply module 35, offer coil 8 by wire and auxiliary switch 18, in the great magnetic field of the interior generation of coil 8, thereby in static iron core 10, induce extremely strong magnetic force, overcome the reversal interlocking relay of tripping spring 14 by this magnetic attraction moving armature plate 34, make moving armature plate 34 fast to static iron core 10 adhesives, and drive the moving contact 25 in vacuum switch tube to fit to fixed contact 24 fast, thereby complete feed motion.
See Fig. 3, in the time of palpus separating brake, as long as close secondary power supply module 35, remove after power supply, under the resilient force of tripping spring 14, moving contact 25 is separated fast with fixed contact 24, and rely on the elastic force of tripping spring 14 to make vacuum contactor keep gate-dividing state.
Claims (8)
1. large electric current, from heat radiation vacuum contactor, comprises metacoxal plate (17), prebasal plate (21), and described metacoxal plate (17) is iron plate, between the same vertical both sides of forward and backward substrate, links together by side plate (16); On metacoxal plate (17) medial surface, be fixed with successively auxiliary switch (18), static gag bit plate (9) and secondary power supply module (35) from top to bottom, on described static gag bit plate (9), be fixed with static iron core (10), on static iron core (10), have coil (8); Described coil (8) is all connected with secondary power supply module (35) by wire with auxiliary switch (18); Between static iron core (10) and prebasal plate (21), have can with static iron core (10) contact or the moving armature plate (34) separating, between moving armature plate (34) and static gag bit plate (9), be connected with tripping spring (14), moving armature plate (34) the top inner side screw (19) that re-packs, there is contact auxiliary switch (18) one end relative with the screw that re-packs (19); The outside bottom and upper segment of prebasal plate (21) has respectively quiet outlet row (2) and moving outlet row (7), and between quiet outlet row (2) and moving outlet row (7) and prebasal plate (21), is insulation shape and coordinates; Between quiet outlet row (2) and moving outlet row (7), have vacuum switch tube, the static conductive rod (3) of vacuum switch tube is connected with moving outlet row (7) with quiet outlet row (2) respectively with moving conductive rod (5); Moving armature plate (34) has the rotating shaft (33) that is horizontal arrangement below, and rotating shaft (33) two ends are moving type and are arranged on biside plate (16); Between rotating shaft (33) and moving conductive rod (5), have connecting lever (32), this connecting lever is electrical insulator, and it is upper that one end of connecting lever (32) is fixed on rotating shaft (33), it is characterized in that the other end of connecting lever (32) is connected with moving conductive rod (5) by back-moving spring (31); Between quiet outlet row (2) and moving outlet row (7), all there is vacuum switch tube; It is characterized in that being fixed with at least two fin (23) on overhanging section of described static conductive rod (3).
2. large electric current according to claim 1 is from heat radiation vacuum contactor, the contiguous circle centre position thickness that it is characterized in that described fin (23) is thicker than its surrounding, and be processed with bar hole at circle centre position, after making described fin (23) be through static conductive rod (3) and go up and stack together by the bar hole on it, between the surrounding of adjacent fin (23), form spacing.
3. large electric current according to claim 1, from heat radiation vacuum contactor, is characterized in that described prebasal plate (21), for iron plate, has Insulating frame (1) on its outer surface, and described quiet outlet row (2) and moving outlet row (7) are fixed on Insulating frame (1).
4. large electric current according to claim 1 is from heat radiation vacuum contactor, it is characterized in that there is axial screw moving conductive rod (5) lower end, connecting lever (32) one end Shang Yougan hole adjacent with pull bar (30), pull bar (30) upper end is passed in the rear screw that screws in moving conductive rod (5) lower end of bar hole, locking nut (27) of connecting lever (32) one end successively; Described back-moving spring (31) is enclosed within on that section of pull bar (30) between locking nut (27) and connecting lever (32).
5. large electric current according to claim 4, from heat radiation vacuum contactor, is characterized in that Insulating frame (1) has laterally outer chimb (28) below, laterally has supporting bracket (29) on outer chimb (28); The top of described supporting bracket (29) is horizontal, and bottom is vertical shape, and its top is fixed on described laterally outer chimb (28); Described moving outlet row (7) is connected to the bottom of supporting bracket (29); Described moving conductive rod (5) lower end is connected with conductive clip (26), between conductive clip (26) and moving outlet row (7), is connected by flexible conductor (6).
6. large electric current according to claim 1, from heat radiation vacuum contactor, is characterized in that secondary power supply module (35) contains control circuit, microprocessor, infrared receipts and connects device and UBS interface.
7. large electric current according to claim 1, from heat radiation vacuum contactor, is characterized in that there is axis hole moving armature plate (34) top, is fixed with minor axis (22) in axis hole; On the static gag bit plate (9) relative with this minor axis and metacoxal plate (17), there is axis hole, in axis hole, have adjustment screw (13); One end of described tripping spring (14) is connected with described minor axis (22) inner end, and the other end is fixed with nut (12), and described adjustment screw (13) is screwed in this nut.
8. large electric current according to claim 1 is from heat radiation vacuum contactor, it is characterized in that inner side, moving armature plate (34) top is connected with connecting plate (20), the top of this connecting plate first bends inwards and is after level more upwards bending and is vertical, thereby makes its upper, middle and lower segment form respectively perpendicular section, horizontal segment and lower vertical piece; Upper perpendicular section upper and lower perpendicular section of connecting plate (20) all has axis hole, and connecting plate (20) lower end is fixed on the top of moving armature plate (34) by the axis hole on its lower vertical piece, hold-down nut and minor axis (22); The described screw that re-packs (19) is fixed in the axis hole in the upper perpendicular section of connecting plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090700.XU CN203746741U (en) | 2014-03-03 | 2014-03-03 | Large-current self-heat dissipation vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090700.XU CN203746741U (en) | 2014-03-03 | 2014-03-03 | Large-current self-heat dissipation vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746741U true CN203746741U (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090700.XU Expired - Fee Related CN203746741U (en) | 2014-03-03 | 2014-03-03 | Large-current self-heat dissipation vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203746741U (en) |
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2014
- 2014-03-03 CN CN201420090700.XU patent/CN203746741U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20180303 |
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| CF01 | Termination of patent right due to non-payment of annual fee |