CN203850214U - Electromagnetic power switch - Google Patents
Electromagnetic power switch Download PDFInfo
- Publication number
- CN203850214U CN203850214U CN201420259671.5U CN201420259671U CN203850214U CN 203850214 U CN203850214 U CN 203850214U CN 201420259671 U CN201420259671 U CN 201420259671U CN 203850214 U CN203850214 U CN 203850214U
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- cavity
- iron core
- electromagnetic power
- power source
- source switch
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Abstract
The utility model discloses an electromagnetic power switch, and relates to the field of electrical equipment. The electromagnetic power switch can be used to solve the problem that an electric spark is easy to occur in the large-current working load condition in the prior art. The switch comprises a shell. An iron core component and an on/off execution mechanism are arranged in the shell. The iron core component comprises a cylindrical coil sub-assembly, and a fixed iron core and a moved iron core which are arranged in the coil sub-assembly. An ejector rod which can be moved up and down is embedded into the fixed iron core. The upper portion of the ejector rod is provided with a conductive contact. A reset spring is arranged between the upper end of the ejector rod and the end cover of the shell. The end cover is fixedly provided with two wire connection terminals. The lower end of each wire connection terminal is embedded into the shell and matched with the contact. The upper surface of the end cover is provided with a plastic blocking sheet between the two wire connection terminals. Epoxy sealant is poured into a mouth cavity between the end cover and the shell. The inner cavity of the shell is filled with inert gases. According to the utility model, advantages of simple structure, sensitive contact action and good waterproof and dustproof sealing performance can be realized, and no electric spark will occur in the large-current working load condition.
Description
Technical field
The utility model relates to electric equipment field, is specifically related to a kind of simple in structurely, and contact chip is active in one's movements, and water proof and dust proof good airproof performance there will not be the electromagnetic power source switch of electric spark under the live load of large electric current.
Background technology
At electric field, contactor is the wider important device of a kind of use, is generally used for being switched on or switched off continually the occasion of the power supply circuits of control object.Control object is generally motor, but also comprises electrical loads such as electricity hot device ﹑ machine-tool and various electric power units.Contactor mainly comprise for be switched on or switched off control object main circuit main circuit on off mechanism and for controlling solenoid unit two parts of the on-off action of main circuit on off mechanism.In the prior art, main circuit on off mechanism is comprised of moving contact and fixed contact conventionally, and solenoid unit mainly comprises coil, moving iron core and static iron core.After the coil electricity of the solenoid unit of contactor, coil current can produce magnetic field, the magnetic field producing makes the static iron core of solenoid unit produce electromagnetic attraction and attracts the moving iron core of solenoid unit, moving iron core drives the moving contact action of main circuit on off mechanism, thereby is switched on or switched off main circuit.After the coil blackout of the solenoid unit of contactor, electromagnetic force disappears, and moving contact is returned to initial position.
During work, contactor needs frequently to open and close large load current, thus must possess very strong arc extinguishing ability, can repeatedly open and close, and to there is the operating system of contact system and flexibility and reliability flexibly.At present, D.C. contactor is extensively adopted by industries such as engineering machinery, storage battery (moving) car, communication electric-control system and frequency converters, in current D.C. contactor industry, be commonly non-tight product, manufacturing process is complicated, parts are many and mostly be manual manufactures a product, and exists the shortcomings such as Product environment bad adaptability, human cost is high, quality is unstable.Therefore, along with to product quality and more and more harsher to the requirement of production cost, research and development performance is remarkable, D.C. contactor with low cost becomes inevitable choice.In addition, the above D.C. contactor parts of 100A raw material are used metal and bakelite material in a large number, and material cost is high, and processing difficulties, and the connection of metal and bakelite is used many group screw groups to force coupling.These D.C. contactors are commonly non-tight product, Product environment bad adaptability, and parts are many, and manufacturing process is complicated, and general employing by hand manufactured, and human cost is high, and quality is unstable.
Utility model content
The defect existing in order to solve above-mentioned technology, it is a kind of simple in structure that the utility model provides, and contact chip is active in one's movements, and water proof and dust proof good airproof performance there will not be the electromagnetic power source switch of electric spark under the live load of large electric current.
The utility model is realized the technical scheme that above-mentioned technique effect adopts:
A kind of electromagnetic power source switch, comprise housing, be located at the binding post on described housing and be located at core assembly and the break-make actuator in described housing, described core assembly comprises the coil sub-unit of a tubular and is placed in static iron core and the moving iron core of described coil sub-unit, wherein, described housing has the first cavity and the second cavity being interconnected, described core assembly is positioned at the first cavity, described break-make actuator is positioned at described the second cavity, the chamber wall side of described the second cavity is provided with supporting seat, described supporting seat is provided with for sealing the end cap of described housing, at described supporting seat, in the housing oral area cavity that described end cap and described housing surround, be perfused with epoxy sealing glue, in described the first cavity and described the second cavity, be filled with inert gas.
Above-mentioned a kind of electromagnetic power source switch, described break-make actuator comprises and is embedded the push rod in described static iron core and is fixed on described push rod for the contact chip of turning circuit, described push rod runs through described static iron core, and can be up and down along described static iron core.
Above-mentioned a kind of electromagnetic power source switch, described contact chip is located at described push rod towards one end of described the second cavity, and the other end of described push rod stretches out in described static iron core and contacts separably with described moving iron core.
Above-mentioned a kind of electromagnetic power source switch, described push rod is provided with back-moving spring at the upper end of the one end towards described the second cavity, and the other end of described back-moving spring and described supporting seat fix.
Above-mentioned a kind of electromagnetic power source switch, is provided with supporting bracket between described the first cavity and the second cavity, and described static iron core is fixed in described supporting bracket.
Above-mentioned a kind of electromagnetic power source switch, described housing comprises plastic casing and is located at the metal inner casing on described plastic casing inwall.
Above-mentioned a kind of electromagnetic power source switch, described binding post is located on described end cap, and the lower end of described binding post embeds described end cap and described supporting seat and is arranged in described the second cavity and matches with described contact chip.
Above-mentioned a kind of electromagnetic power source switch, the upper surface of described end cap is being provided with a plastic retainer sheet between binding post described in two.
The beneficial effects of the utility model are: the utility model is simple in structure, by core assembly and break-make actuator are placed in respectively to different cavitys, can make core assembly and break-make actuator separate, fixed space is compact, during work, can not produce shake.Push rod, when moving iron core adhesive static iron core, can move to the second cavity by the extruding of moving iron core, and it is in electrical contact that the contact chip that makes push rod upper end and binding post form, connection circuit, and contact chip is active in one's movements.In the housing oral area cavity that supporting seat, end cap and housing surround, be perfused with epoxy sealing glue, make water proof and dust proof better tightness of the present utility model, can adapt to severe operational environment, in the first cavity and the second cavity, exuberant inert gas can avoid the utility model to produce electric spark under the live load of large electric current, make the utility model service behaviour more stable, can adapt to the operational environment compared with wide-range current.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
In figure: 1-plastic casing, 2-metal inner casing, 3-end cap, 4-coil sub-unit, the moving iron core of 5-, 6-static iron core, 7-push rod, 8-contact chip, 9-binding post, 10-epoxy sealing glue, 11-plastic retainer sheet, 12-hold-down nut, 13-back-moving spring, 14-the first cavity, 15-work shape part, 16-supporting bracket, 17-supporting seat, 18-the second cavity.
Embodiment
For making that the utility model is done further to understand, below with reference to Figure of description and specific embodiment, the utility model is described in further detail:
As shown in Figure 1, a kind of electromagnetic power source switch, comprises housing, is located at the binding post 9 on housing and is located at core assembly and the break-make actuator in housing.Housing consists of plastic casing 1 and the metal inner casing 2 being located on plastic casing 1 inwall.Core assembly comprises the coil sub-unit 4 of a tubular and is placed in static iron core 6 and the moving iron core 5 of this coil sub-unit 4.Wherein, as a kind of improvement of the present utility model, housing has the first cavity 14 and the second cavity 18 being interconnected, and core assembly is positioned at the first cavity 14, and break-make actuator is positioned at the second cavity 18.The chamber wall side of the second cavity 18 is provided with supporting seat 17, this supporting seat 17 is provided with the end cap 3 for seal casinghousing, in the housing oral area cavity surrounding at supporting seat 17, end cap 3 and housing, be perfused with in epoxy sealing glue 10, the first cavitys 14 and the second cavity 18 and be filled with inert gas.
Particularly, in preferred embodiment of the present utility model, break-make actuator comprises the push rod 7 being embedded in static iron core 6, and is fixed on push rod 7 for forming and be electrically connected with binding post 9, the contact chip 8 that circuit is carried out to conducting.Push rod 7 runs through static iron core 6, and when 4 energising of coil sub-unit, iron core 5 is moved in static iron core 6 adhesives, passive iron core 5 extruding of push rod 7, and push rod 7 can be movable to the one end away from moving iron core 5 along static iron core 6.Concrete, contact chip 8 is fixed on push rod 7 towards one end of the second cavity 18 by a work type part 15, and contact chip 8 is positioned at the second cavity 18, can be interior up and down at the second cavity 18 under the drive of push rod 7.The other end of push rod 7 stretches out in static iron core 6 and contacts separably with moving iron core 5.The upper end of push rod 7 in the one end towards the second cavity 18 is provided with back-moving spring 13, and the other end of this back-moving spring 13 and supporting seat 17 fix.At coil sub-unit 4 during in "on" position not, back-moving spring 13 can make push rod 7 away from binding post 9 under acting force of the spring, at coil sub-unit 4 during in "on" position, iron core 5 is moved in static iron core 6 adhesives, under the squeezing action power of moving iron core 5, push rod 7 overcomes the active force of back-moving spring 13, can make push rod 7 away from binding post 9 under acting force of the spring.
Further, in preferred embodiment of the present utility model, between the first cavity 14 and the second cavity 18, be provided with supporting bracket 16, supporting bracket 16 is divided into enclosure interior the first cavity 14 and second cavity 18 of space compactness, the first cavity 14 and the second cavity 18 are non-tight sexual isolation, gas can flow each other, and static iron core 6 is fixed in supporting bracket 16.Two binding posts 9 are fixed on end cap 3, by hold-down nut 12, are fixed, and the lower end of binding post 9 embeds end cap 3 and supporting seat 17 and is positioned at the second cavity 18 and matches with contact chip 8.For preventing producing electric arc between two binding posts 9, the upper surface of end cap 3 is provided with a plastic retainer sheet 11 between two binding posts 9.
In sum, the utility model is simple in structure, by core assembly and break-make actuator are placed in respectively to different cavitys, can make core assembly and break-make actuator separate, and fixed space is compact, during work, can not produce shake.Push rod, when moving iron core adhesive static iron core, can move to the second cavity by the extruding of moving iron core, and it is in electrical contact that the contact chip that makes push rod upper end and binding post form, connection circuit, and contact chip is active in one's movements.In the housing oral area cavity that supporting seat, end cap and housing surround, be perfused with epoxy sealing glue, make water proof and dust proof better tightness of the present utility model, can adapt to severe operational environment, in the first cavity and the second cavity, exuberant inert gas can avoid the utility model to produce electric spark under the live load of large electric current, make the utility model service behaviour more stable, can adapt to the operational environment compared with wide-range current.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications; these changes and improvements all fall in claimed scope of the present utility model, and the protection range that the utility model requires is defined by appending claims and equivalent thereof.
Claims (9)
1. an electromagnetic power source switch, comprise housing, be located at the binding post on described housing and be located at core assembly and the break-make actuator in described housing, described core assembly comprises the coil sub-unit of a tubular and is placed in static iron core and the moving iron core of described coil sub-unit, it is characterized in that, described housing has the first cavity and the second cavity being interconnected, described core assembly is positioned at the first cavity, described break-make actuator is positioned at described the second cavity, the chamber wall side of described the second cavity is provided with supporting seat, described supporting seat is provided with for sealing the end cap of described housing, at described supporting seat, in the housing oral area cavity that described end cap and described housing surround, be perfused with epoxy sealing glue, in described the first cavity and described the second cavity, be filled with inert gas.
2. a kind of electromagnetic power source switch according to claim 1, it is characterized in that, described break-make actuator comprises and is embedded the push rod in described static iron core and is fixed on described push rod the contact chip for turning circuit, described push rod runs through described static iron core, and can be up and down along described static iron core.
3. a kind of electromagnetic power source switch according to claim 2, is characterized in that, described contact chip is located at described push rod towards one end of described the second cavity, and the other end of described push rod stretches out in described static iron core and contacts separably with described moving iron core.
4. a kind of electromagnetic power source switch according to claim 3, is characterized in that, described push rod is provided with back-moving spring at the upper end of the one end towards described the second cavity, and the other end of described back-moving spring and described supporting seat fix.
5. a kind of electromagnetic power source switch according to claim 1, is characterized in that, between described the first cavity and the second cavity, is provided with supporting bracket, and described static iron core is fixed in described supporting bracket.
6. a kind of electromagnetic power source switch according to claim 1, is characterized in that, described housing comprises plastic casing and is located at the metal inner casing on described plastic casing inwall.
7. a kind of electromagnetic power source switch according to claim 1, is characterized in that, described binding post is located on described end cap, and the lower end of described binding post embeds described end cap and described supporting seat and is positioned at described the second cavity and matches with described contact chip.
8. a kind of electromagnetic power source switch according to claim 7, is characterized in that, the upper surface of described end cap is being provided with a plastic retainer sheet between binding post described in two.
9. a kind of electromagnetic power source switch according to claim 1, is characterized in that, described inert gas is argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259671.5U CN203850214U (en) | 2014-05-19 | 2014-05-19 | Electromagnetic power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259671.5U CN203850214U (en) | 2014-05-19 | 2014-05-19 | Electromagnetic power switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850214U true CN203850214U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259671.5U Expired - Fee Related CN203850214U (en) | 2014-05-19 | 2014-05-19 | Electromagnetic power switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850214U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047478A (en) * | 2015-07-29 | 2015-11-11 | 东莞市三友联众电器有限公司 | High-power relay |
| CN105097358A (en) * | 2014-05-19 | 2015-11-25 | 浙江道为尔科技有限公司 | Electromagnetic power switch |
-
2014
- 2014-05-19 CN CN201420259671.5U patent/CN203850214U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097358A (en) * | 2014-05-19 | 2015-11-25 | 浙江道为尔科技有限公司 | Electromagnetic power switch |
| CN105047478A (en) * | 2015-07-29 | 2015-11-11 | 东莞市三友联众电器有限公司 | High-power relay |
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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: 20140924 Termination date: 20180519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |