CN205384993U - Single -pole double throw direct current contactor - Google Patents
Single -pole double throw direct current contactor Download PDFInfo
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- CN205384993U CN205384993U CN201620128272.4U CN201620128272U CN205384993U CN 205384993 U CN205384993 U CN 205384993U CN 201620128272 U CN201620128272 U CN 201620128272U CN 205384993 U CN205384993 U CN 205384993U
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Abstract
The utility model provides a single -pole double throw direct current contactor, which comprises an outer shell, the setting is at the inside coil pack of shell, quiet contact assembly with move contact assembly, quiet contact assembly includes two sets of stationary contacts, movable contact assembly includes two movable contact springs that correspond with two sets of stationary contacts, movable contact assembly is still including the movable contact push rod spare that drives the movable contact spring up -and -down motion, movable contact push rod spare is including moving fixed contact support and reseing the push rod, move fixed contact support and two movable contact spring symmetries and locate the both sides of the push rod that resets, the push rod that resets run through move fixed contact support and with move the fixed contact support an organic whole of moulding plastics. The utility model provides a pair of single -pole double throw direct current contactor, the movable contact push rod spare of feeling relieved functionally guarantee multiunit contact direct current contactor's synchronous closed and disconnection, have improved direct current contactor's synchronism.
Description
Technical field
This utility model relates to D.C. contactor technical field, particularly relates to a kind of single-pole double throw D.C. contactor.
Background technology
At electric automobile, quick charge stake, communication HVDC, photovoltaic intelligent controls, wideling popularize of the direct-flow electricity utilization apparatus such as battery switching and high-voltage dc voltage on-off control, a large amount of exploitations of three-phase DC motor especially used for electric vehicle and use, the starting process of three-phase DC motor is realized by the break-make of D.C. contactor, at present, the multiple single-contact DC. current electromagnetic contactors of many employings, need to control multiple single-contact D.C. contactors when starting and realize the action of closed and disconnected simultaneously, multiple D.C. contactors are independent components and parts, there is certain deviation in its response speed, programme-control there is also certain time delay, therefore, action poor synchronization, cause starting difficulty, serious meeting burns out motor.It addition, multiple D.C. contactors make system design more complicated, energy resource consumption is more, is unfavorable for energy-saving and emission-reduction.The design difficulty of the D.C. contactors organizing contact is also how to realize the problem of synchronicity more.
Utility model content
Technical problem to be solved in the utility model is: in order to overcome the deficiency of multiple single contact D.C. contactors and multiconductor D.C. contactor Guan Bi concordance difference in prior art, this utility model provides a kind of single-pole double throw D.C. contactor, adopt many group contacts to coordinate the movable contact pusher structure of synchronization action to realize Synchronization Control, improve concordance.
The technical scheme that this utility model solves its technical problem to be taken is: a kind of single-pole double throw D.C. contactor, including shell, it is arranged on the coil block of enclosure, stationary contact assembly and movable contact assembly, described stationary contact assembly includes two groups of stationary contacts, described movable contact assembly includes two movable contact springs corresponding with described two groups of stationary contacts, described movable contact assembly also includes the movable contact push-rod assembly driving described movable contact spring to move up and down, described movable contact push-rod assembly includes moving contact support and reset push rod, described moving contact support and two described movable contact springs are symmetrically set in the both sides of described reset push rod, described reset push rod run through described moving contact support and with described moving contact support integrated through injection molding.
Owing to the movable contact of reset push rod both sides needs synchronization action, therefore, adopt a reset push rod to drive the action simultaneously of two movable contact springs simultaneously；Owing to movable contact spring is symmetrically arranged along reset push rod, therefore, need to ensure that movable contact assembly does not produce bias, then can ensure that the synchronization action of movable contact spring, moving contact support adopts the plastic material of high intensity, by reset push rod and moving contact support integrated through injection molding, serves the effect of centering, thus improving the concordance of movable contact assembly action, improve the reliability of D.C. contactor；It addition, adopt, a push rod installs two groups of movable contact assemblies, decrease the parts of practicality, save space, reduce the volume of D.C. contactor.
In order to improve the concordance of movable contact assembly action further, described moving contact support is axially arranged with reset push rod guide pin bushing along described reset push rod, and described reset push rod is placed in described reset push rod guide pin bushing.Adopt fairlead to extend reset push rod and moving contact support contact area in the axial direction, be further ensured that the center superposition of reset push rod and movable contact assembly, play certralizing ability.
Owing to movable contact assembly is when contacting with stationary contact, can produce along the axial thrust of reset push rod between sound contact, reset push rod is that injection moulding is connected with moving contact support, therefore, in order to ensure that reset push rod and moving contact support do not produce axial movement, described reset push rod is placed in the part in described moving contact support and is circumferentially equipped with spacing ring.Can avoid producing between reset push rod and moving contact support to move axially by spacing ring, improve reliability further.
Further, described movable contact assembly also includes movable contact spring, follows the tracks of push rod and tracking spring, described movable contact spring, tracking push rod and tracking spring are two groups, described tracking push rod upper end is fixing with described movable contact spring center to be connected, described tracking push rod lower end and described moving contact support integrated through injection molding, on the described tracking spring described tracking push rod between described movable contact spring and described moving contact support.
Movable contact spring can produce abrasion with stationary contact after frequently contacting, and in order to ensure the reliable contacts of movable contact spring and stationary contact, adopts tracking spring to produce elastic force upwards, promotes movable contact spring and stationary contact reliable contacts.
Owing to movable contact assembly is when contacting with stationary contact, can produce along following the tracks of the thrust that push rod is axial between sound contact, following the tracks of push rod is that injection moulding is connected with moving contact support, therefore, in order to ensure that following the tracks of push rod does not produce axial movement with moving contact support, described tracking push rod is placed in the part in described moving contact support and is circumferentially equipped with spacing ring.Can avoid following the tracks of between push rod and moving contact support by spacing ring and produce to move axially, improve reliability further.
Concrete, described stationary contact assembly includes stationary contact support, epoxy bedding and padding and the breakback contact stand installed successively from top to bottom, described stationary contact sequentially passes through stationary contact support and epoxy bedding and padding from top to bottom, and extend to inside breakback contact stand, fix with described coil block below described breakback contact stand and be connected.
Further, described stationary contact support is arranged over orthogonal stationary contact demarcation strip, and stationary contact is separated by described stationary contact demarcation strip between two.Stationary contact demarcation strip is adopted to be easily separated by adjacent stationary contact, it is to avoid interfering between difference group stationary contact during the sound closing of contact.
The electric arc produced when utilizing magnetic field to be disconnected contact elongates, and then realizes the thorough disconnection between contact after weakening arc energy.Existing D.C. contactor has polarity, and butted line is restricted, and the electric arc of both sides, contact must be in opposite direction, just can realize the purpose of arc extinguishing.When electric arc direction is identical, both sides electric arc crosses, then cannot realize the disconnection between contact.If wiring direction connects instead, then cannot realize the disconnection between contact.
Further, described breakback contact stand is connected with two contact chambers, often organize described stationary contact and the movable contact spring corresponding with described stationary contact is placed in same contact chamber, the sidewall of described contact chamber is provided with at least four magnet steel, described magnet steel is divided into two groups, often organize described magnet steel and be positioned at movable contact spring two ends on the extended line with two stationary contact line directions of group, and the magnetic direction of described magnet steel is parallel and vertical with the sense of current between movable contact spring and stationary contact with two stationary contact line directions.
Magnet steel is arranged on the extended line both sides of stationary contact line, and the magnetic direction making magnet steel is parallel and vertical with the sense of current between movable contact spring and stationary contact with two stationary contact line directions, makes the electric arc of both sides, contact not have directivity, thus realizing arc extinguishing.
Further, being filled with arc extinguishing gases in described contact chamber, described arc extinguishing gases is hydrogen.
Further, described magnet steel is connected with contact portion cover plate, and described contact portion cover plate upper end is supported on the bottom of described magnet steel.Contact portion cover plate is used for supporting magnet steel.
Further, also including the protective cover being arranged on above stationary contact, described protective cover is connected with described stationary contact support.Protective cover is used for protecting stationary contact, and meanwhile, protective cover is provided with lead-in wire opening, it is possible to makes the wiring of each contact separate, will not interfere with each other, easy to maintenance.
Further, also include microswitch, described microswitch is fixing with described stationary contact assembly to be connected, and the wiring pin of described microswitch is connected with described outside line, described microswitch is provided with spring contact strip, described spring contact strip is connected with and the cantilever of described movable contact component synchronization motion, and described cantilever one end is fixing with described moving contact support to be connected, and the described cantilever other end and described movable contact spring align up and down.Described cantilever is right angled triangle or right-angled trapezium along the section of described push rod axis direction.Adopt the microswitch triggered with movable contact component synchronization directly to monitor the duty of D.C. contactor, improve the reliability of D.C. contactor self, make external circuit design simpler.
The beneficial effects of the utility model are: a kind of single-pole double throw D.C. contactor that this utility model provides, and movable contact push-rod assembly of good performance of feeling relieved ensures synchronizing close and the disconnection of many group contacts D.C. contactor, improves the synchronicity of D.C. contactor；Adopt microswitch directly to monitor the duty of D.C. contactor, improve the reliability of D.C. contactor self, make external circuit design simpler.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the explosive view of this utility model most preferred embodiment；
Fig. 2 is the top view of this utility model most preferred embodiment；
Fig. 3 is the sectional view of A-A in Fig. 2；
Fig. 4 is the enclosure structural representation of this utility model most preferred embodiment；
Fig. 5 is the structural representation of movable contact push-rod assembly of the present utility model；
Fig. 6 is the structural representation of dynamic moving contact support of the present utility model；
Fig. 7 is the top view of Fig. 5；
Fig. 8 is the sectional view of B-B in Fig. 7；
Fig. 9 is the structural representation of microswitch of the present utility model；
Figure 10 is the structural representation of breakback contact stand of the present utility model；
Figure 11 is the structural representation of stationary contact support of the present utility model；
Figure 12 is the structural representation of epoxy bedding and padding of the present utility model.
nullIn figure: 1、Shell，11、Installing rack，12、Through hole，13、Case inserts，2、Panel box，3、Yoke sleeve pipe，4、Coil block，41、Coil rack，42、Dynamic iron core fairlead，43、Dynamic iron core，44、Coil，5、Movable contact assembly，51、Movable contact push-rod assembly，511、Moving contact support，512、Reset push rod，513、Reset push rod guide pin bushing，514、Follow the tracks of push rod guide pin bushing，515、Reinforcement，516、Spacing ring，52、Contact portion cover plate，53、Magnet steel，54、Movable contact spring，55、Follow the tracks of push rod，56、Tracking spring，6、Stationary contact assembly，61、Stationary contact，62、Stationary contact support，63、Epoxy bedding and padding，64、Breakback contact stand，65、Contact chamber，66、Stationary contact demarcation strip，67、Protective cover，7、Armature plate，8、Insulation spacer，9、Microswitch，91、Wiring pin，92、Spring contact strip，10、Cantilever.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in detail.This figure is the schematic diagram simplified, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the composition relevant with this utility model.
As shown in figs. 1-12, a kind of single-pole double throw D.C. contactor of the present utility model, including shell 1, bottom shell 1, radially it is arranged with two triangle installing racks 11, installing rack 11 is provided with through hole 12, is provided with case inserts 13 in through hole 12；Shell 1 side is provided with panel box 2, and the energy-saving board (not shown) for Energy Saving Control is arranged in panel box 2；Shell 1 is internal is provided with a yoke sleeve pipe 3, and coil block 4, movable contact assembly 5 and stationary contact assembly 6 are sequentially placed in yoke sleeve pipe 3 from top to bottom.
As shown in Figure 3, coil block 4 includes the coil rack 41 being socketed successively from outside to inside, dynamic iron core fairlead 42 and dynamic iron core 43, coil rack 41 is wound around coil 44, coil rack 41 upper end is sequentially provided with an armature plate 7 and an insulation spacer 8, armature plate 7 and insulation spacer 8 and coil block 4 and movable contact assembly 5 is separated.
nullAs shown in figures 1-8，Movable contact assembly 5 includes movable contact push-rod assembly 51、Contact portion cover plate 52、Magnet steel 53、Movable contact spring 54、Follow the tracks of push rod 55 and tracking spring 56，Magnet steel 53 is four，Movable contact spring 54、Follow the tracks of push rod 55 and tracking spring 56 is two，Contact portion cover plate 52 is connected with insulation spacer 8 upper surface，Contact portion cover plate 52 is provided with four legs 521 upwards，Each leg 521 supports the bottom of a magnet steel 53，Magnet steel 53 two is one group，Often two magnet steel 53 of group lay respectively at movable contact spring 54 two ends with on the extended line organizing two stationary contact 61 line directions，Movable contact push-rod assembly 51 includes moving contact support 511 and reset push rod 512，Reset push rod 512 runs through moving contact support 511 from the center of moving contact support 511，And it is internal to extend to downwards dynamic iron core 43，Dynamic iron core 43 is fixing with reset push rod 512 to be connected，Reset push rod 512 and moving contact support 511 integrated through injection molding，Follow the tracks of push rod 55 and be symmetrically arranged at moving contact support 511 two ends along reset push rod 512，Tracking push rod 55 upper end is fixing with movable contact spring 54 center to be connected，Follow the tracks of push rod 55 lower end and moving contact support 511 integrated through injection molding，On the tracking spring 56 tracking push rod 55 between movable contact spring 54 and moving contact support 511.Moving contact support 511 is axially arranged with reset push rod guide pin bushing 513 along reset push rod 512, reset push rod 512 is placed in reset push rod guide pin bushing 513, it is circumferentially with tracking push rod guide pin bushing 514 along following the tracks of push rod 55, follow the tracks of push rod 55 and be placed in tracking push rod guide pin bushing 514, reset push rod guide pin bushing 513 and tracking push rod guide pin bushing 514 are one-body molded with moving contact support 511, following the tracks of and be provided with reinforcement 515 between push rod guide pin bushing 514 and reset push rod guide pin bushing 513 sidewall, reset push rod 512 and tracking push rod 55 are placed in the part in moving contact support 511 and are all circumferentially equipped with spacing ring 516.
As shown in Fig. 1, Fig. 3 and Figure 10-12, stationary contact assembly 6 includes four stationary contacts 61 and the stationary contact support 62 installed successively from top to bottom, epoxy bedding and padding 63 and breakback contact stand 64, stationary contact 61 sequentially passes through stationary contact support 62 and epoxy bedding and padding 63 from top to bottom, and extend in the contact chamber 65 within breakback contact stand 64, fix with insulation spacer 8 below breakback contact stand 64 and be connected.Stationary contact support 62 is arranged over orthogonal stationary contact demarcation strip 66, and stationary contact 61 is separated by stationary contact demarcation strip 66 between two.
As shown in Figure 10, breakback contact stand 64 is connected with two contact chambers 65, often group stationary contact 61 and corresponding with stationary contact 61 movable contact spring 54 are placed in same contact chamber 65, the sidewall of contact chamber 65 is provided with four magnet steel 53, four magnet steel 53 are equally divided into two groups, often group magnet steel 53 is positioned at movable contact spring 54 two ends with on the extended line organizing two stationary contact 61 line directions, and the magnetic direction of magnet steel 53 is parallel and vertical with the sense of current between movable contact spring 54 and stationary contact 61 with two stationary contact 61 line directions.Also including the protective cover 67 being arranged on above stationary contact 61, protective cover 67 is connected with stationary contact support 62.
As shown in Figure 1, also include the microswitch 9 between two movable contact springs 54, microswitch 9 upper end is fixed on epoxy bedding and padding 63 bottom surface, and the wiring pin 91 of microswitch 9 is connected with outside line, microswitch 9 is provided with spring contact strip 92, spring contact strip 92 is connected with the cantilever 10 being synchronized with the movement with movable contact assembly 5, and cantilever 10 one end is fixing with moving contact support 511 to be connected, and cantilever 10 other end and spring contact strip about 92 align.When movable contact assembly 5 moves upward, movable contact spring 54 contacts with stationary contact 61, and meanwhile, moving contact support 511 drives cantilever 10 to move upward, and cantilever 10 promotes spring contact strip 92 to close, and makes microswitch 9 turn on, sends the signal of normal operation.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff not necessarily departing from scope of the present utility model, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (11)
- null1. a single-pole double throw D.C. contactor，Including shell (1)，It is arranged on the coil block (4) that shell (1) is internal、Stationary contact assembly (6) and movable contact assembly (5)，Described stationary contact assembly (6) includes two groups of stationary contacts (61)，Described movable contact assembly (5) includes two movable contact springs (54) corresponding with described two groups of stationary contacts (61)，It is characterized in that: described movable contact assembly (5) also includes the movable contact push-rod assembly (51) driving described movable contact spring (54) to move up and down，Described movable contact push-rod assembly (51) includes moving contact support (511) and reset push rod (512)，Described moving contact support (511) and two described movable contact springs (54) are symmetrically set in the both sides of described reset push rod (512)，Described reset push rod (512) run through described moving contact support (511) and with described moving contact support (511) integrated through injection molding.
- 2. single-pole double throw D.C. contactor as claimed in claim 1, it is characterized in that: described moving contact support (511) is axially arranged with reset push rod guide pin bushing (513) along described reset push rod (512), and described reset push rod (512) is placed in described reset push rod guide pin bushing (513).
- 3. single-pole double throw D.C. contactor as claimed in claim 2, it is characterised in that: the part that described reset push rod (512) is placed in described moving contact support (511) is circumferentially equipped with spacing ring (516).
- 4. single-pole double throw D.C. contactor as claimed in claim 1, it is characterized in that: described movable contact assembly (5) also includes movable contact spring (54), follow the tracks of push rod (55) and tracking spring (56), described movable contact spring (54), follow the tracks of push rod (55) and tracking spring (56) is two groups, described tracking push rod (55) upper end is fixing with described movable contact spring (54) center to be connected, described tracking push rod (55) lower end and described moving contact support (511) integrated through injection molding, described tracking spring (56) is positioned on the described tracking push rod (55) between described movable contact spring (54) and described moving contact support (511).
- 5. single-pole double throw D.C. contactor as claimed in claim 4, it is characterised in that: the part that described tracking push rod (55) is placed in described moving contact support (511) is circumferentially equipped with spacing ring (516).
- 6. single-pole double throw D.C. contactor as claimed in claim 1, it is characterized in that: described stationary contact assembly (6) includes stationary contact support (62), epoxy bedding and padding (63) and the breakback contact stand (64) installed successively from top to bottom, described stationary contact (61) sequentially passes through stationary contact support (62) and epoxy bedding and padding (63) from top to bottom, and it is internal to extend to breakback contact stand (64), described breakback contact stand (64) lower section is fixing with described coil block (4) to be connected.
- 7. single-pole double throw D.C. contactor as claimed in claim 6, it is characterized in that: described stationary contact support (62) is arranged over orthogonal stationary contact demarcation strip (66), and stationary contact (61) is separated by described stationary contact demarcation strip (66) between two.
- 8. single-pole double throw D.C. contactor as claimed in claim 6, it is characterized in that: described breakback contact stand (64) is connected with two contact chambers (65), often organize described stationary contact (61) and the movable contact spring (54) corresponding with described stationary contact (61) is placed in same contact chamber (65), the sidewall of described contact chamber (65) is provided with at least four magnet steel (53), described magnet steel (53) is divided into two groups, often organize described magnet steel (53) and be positioned at movable contact spring (54) two ends with on the extended line organizing two stationary contact (61) line directions, and the magnetic direction of described magnet steel (53) is parallel with two stationary contact (61) line directions, and it is vertical with the sense of current between movable contact spring (54) and stationary contact (61).
- 9. single-pole double throw D.C. contactor as claimed in claim 8, it is characterized in that: described magnet steel (53) is connected with contact portion cover plate (52), and described contact portion cover plate (52) upper end is supported on the bottom of described magnet steel (53).
- 10. single-pole double throw D.C. contactor as claimed in claim 6; it is characterized in that: also including being arranged on the protective cover (67) of stationary contact (61) top, described protective cover (67) is connected with described stationary contact support (62).
- 11. single-pole double throw D.C. contactor as claimed in claim 1, it is characterized in that: also include microswitch (9), described microswitch (9) is fixing with described stationary contact assembly (6) to be connected, and the wiring pin (91) of described microswitch (9) is connected with outside line, described microswitch (9) is provided with spring contact strip (92), described spring contact strip (92) is connected with the cantilever (10) being synchronized with the movement with described movable contact assembly (5), described cantilever (10) one end is fixing with described moving contact support (511) to be connected, described cantilever (10) other end and described movable contact spring (54) align up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128272.4U CN205384993U (en) | 2016-02-18 | 2016-02-18 | Single -pole double throw direct current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128272.4U CN205384993U (en) | 2016-02-18 | 2016-02-18 | Single -pole double throw direct current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205384993U true CN205384993U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620128272.4U Active CN205384993U (en) | 2016-02-18 | 2016-02-18 | Single -pole double throw direct current contactor |
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| CN (1) | CN205384993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551898A (en) * | 2016-02-18 | 2016-05-04 | 常州市吉士电器有限公司 | Single-pole double-throw DC contactor |
| WO2018205296A1 (en) * | 2017-05-09 | 2018-11-15 | 东莞市三友联众电器有限公司 | Direct current contactor having auxiliary contacts |
-
2016
- 2016-02-18 CN CN201620128272.4U patent/CN205384993U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551898A (en) * | 2016-02-18 | 2016-05-04 | 常州市吉士电器有限公司 | Single-pole double-throw DC contactor |
| WO2018205296A1 (en) * | 2017-05-09 | 2018-11-15 | 东莞市三友联众电器有限公司 | Direct current contactor having auxiliary contacts |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |