CN105097358A - Electromagnetic power switch - Google Patents
Electromagnetic power switch Download PDFInfo
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- CN105097358A CN105097358A CN201410211619.7A CN201410211619A CN105097358A CN 105097358 A CN105097358 A CN 105097358A CN 201410211619 A CN201410211619 A CN 201410211619A CN 105097358 A CN105097358 A CN 105097358A
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- cavity
- iron core
- electromagnetic power
- power source
- source switch
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Abstract
The invention 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 invention, 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 present invention relates to electrical equipment, be specifically related to a kind of structure simply, contact chip is active in one's movements, 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 big current.
Background technology
At electric field, contactor a kind ofly uses wider important device, is generally used for the occasion needing the power supply circuits being switched on or switched off control object continually.Control object is generally motor, but also comprises the such as electrical load such as electric hot device ﹑ machine-tool and various electric power units.Contactor mainly comprises the main circuit on off mechanism of the main circuit for being switched on or switched off control object and the solenoid unit two parts for the on-off action that controls main circuit on off mechanism.In the prior art, main circuit on off mechanism is made up of moving contact and fixed contact usually, and solenoid unit mainly comprises coil, dynamic 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 produced makes the static iron core of solenoid unit produce electromagnetic attraction and attracts the dynamic iron core of solenoid unit, dynamic iron core then drives the moving contact action of main circuit on off mechanism, thus 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 the large load current of frequent opening and closing, thus must possess very strong arc extinguishing ability, can opening and closing repeatedly, and the operating system of contact system and flexibility and reliability flexibly to be had.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, non-tight product are commonly in current D.C. contactor industry, manufacturing process is complicated, parts are many and mostly be manual and manufacture a product, and there is 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, more than 100A D.C. contactor parts raw material use metal and bakelite material in a large number, and material cost is high, and processing difficulties, the connection of metal and bakelite uses 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 manufactures by hand, and human cost is high, and quality is unstable.
Summary of the invention
In order to solve the defect that above-mentioned technology exists, the invention provides a kind of structure simple, contact chip is active in one's movements, 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 big current.
The present invention realizes the technical scheme that above-mentioned technique effect adopts:
A kind of electromagnetic power source switch, comprise housing, if binding post on the housing and the core assembly be located in described housing and break-make actuator, described core assembly comprises the coil sub-unit of a tubular and is placed in the static iron core of described coil sub-unit and dynamic iron core, wherein, described housing has the first cavity and the second cavity that are interconnected, described core assembly is positioned at the first cavity, described break-make actuator is positioned at described second cavity, the wall side, chamber of described second cavity is provided with supporting seat, described supporting seat is provided with the end cap for sealing described housing, at described supporting seat, epoxy sealing glue is perfused with in the housing oral area cavity that described end cap and described housing surround, inert gas is filled with in described first cavity and described second cavity.
Above-mentioned a kind of electromagnetic power source switch, described break-make actuator comprises the push rod be embedded in described static iron core and the contact chip be fixed on for turning circuit on described push rod, and 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 one end towards described second cavity, and the other end of described push rod stretches out in described static iron core and contacts separably with described dynamic 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 second cavity, and the other end and the described supporting seat of described back-moving spring fix.
Above-mentioned a kind of electromagnetic power source switch, be provided with supporting bracket between described first cavity and the second cavity, 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 inner metal shell 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 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 described in two between binding post.
Beneficial effect of the present invention is: structure of the present invention is simple, and by core assembly and break-make actuator are placed in different cavitys respectively, core assembly and break-make actuator can be made to separate, and fixed space is compact, can not produce shake during work.Push rod, when dynamic iron core adhesive static iron core, can be moved to the second cavity by the extruding of dynamic iron core, the contact chip of push rod upper end and binding post be formed in electrical contact, and connect circuit, contact chip is active in one's movements.Epoxy sealing glue is perfused with in the housing oral area cavity that supporting seat, end cap and housing surround, make water proof and dust proof better tightness of the present invention, severe operational environment can be adapted to, in first cavity and the second cavity, exuberant inert gas can avoid the present invention to produce electric spark under the live load of big current, make service behaviour of the present invention more stable, the operational environment compared with wide-range current can be adapted to.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention.
In figure: 1-plastic casing, 2-inner metal shell, 3-end cap, 4-coil sub-unit, 5-move iron core, 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-first cavity, 15-work shape part, 16-supporting bracket, 17-supporting seat, 18-second cavity.
Embodiment
For making to do further understanding to the present invention, referring to Figure of description and specific embodiment, the invention will be further described:
As shown in Figure 1, a kind of electromagnetic power source switch, comprises housing, is located at binding post 9 on housing and the core assembly be located in housing and break-make actuator.Housing is made up of plastic casing 1 and the inner metal shell 2 be 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 dynamic iron core 5 of this coil sub-unit 4.Wherein, as a modification of the present invention, housing has the first cavity 14 and the second cavity 18 be interconnected, and core assembly is positioned at the first cavity 14, and break-make actuator is positioned at the second cavity 18.The wall side, chamber 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 that supporting seat 17, end cap 3 and housing surround, be perfused with epoxy sealing glue 10, in the first cavity 14 and the second cavity 18, be filled with inert gas.
Particularly, in a preferred embodiment of the invention, break-make actuator comprises the push rod 7 be embedded in static iron core 6, and is fixed on push rod 7 and is electrically connected for forming with binding post 9, circuit is carried out to the contact chip 8 of conducting.Push rod 7 runs through static iron core 6, and when coil sub-unit 4 is energized, iron core 5 is moved in static iron core 6 adhesive, and the passive iron core 5 of push rod 7 extrudes, and push rod 7 can be movable to the one end away from dynamic iron core 5 along static iron core 6.Concrete, contact chip 8 is fixed on push rod 7 one end towards the second cavity 18 by a drum part 15, and contact chip 8 is positioned at the second cavity 18, can be up and down in 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 dynamic iron core 5.Push rod 7 is provided with back-moving spring 13 at the upper end of the one end towards the second cavity 18, and the other end and the supporting seat 17 of this back-moving spring 13 fix.When coil sub-unit 4 is in non-"on" position, back-moving spring 13 can make push rod 7 away from binding post 9 under spring action, when coil sub-unit 4 is in "on" position, iron core 5 is moved in static iron core 6 adhesive, under the squeezing action power of dynamic iron core 5, push rod 7 overcomes the active force of back-moving spring 13, and push rod 7 can be made under spring action away from binding post 9.
Further, in a preferred embodiment of the invention, supporting bracket 16 is provided with between first cavity 14 and the second cavity 18, enclosure interior is divided into the first cavity 14 and the second cavity 18 of spaces compact by supporting bracket 16, first cavity 14 and the second cavity 18 completely cut off for non-hermetic, 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, are fixed by hold-down nut 12, 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, structure of the present invention is simple, and by core assembly and break-make actuator are placed in different cavitys respectively, core assembly and break-make actuator can be made to separate, and fixed space is compact, can not produce shake during work.Push rod, when dynamic iron core adhesive static iron core, can be moved to the second cavity by the extruding of dynamic iron core, the contact chip of push rod upper end and binding post be formed in electrical contact, and connect circuit, contact chip is active in one's movements.Epoxy sealing glue is perfused with in the housing oral area cavity that supporting seat, end cap and housing surround, make water proof and dust proof better tightness of the present invention, severe operational environment can be adapted to, in first cavity and the second cavity, exuberant inert gas can avoid the present invention to produce electric spark under the live load of big current, make service behaviour of the present invention more stable, the operational environment compared with wide-range current can be adapted to.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention; these changes and improvements all fall in claimed scope of the present invention, and the protection range of application claims is defined by appending claims and equivalent thereof.
Claims (9)
1. an electromagnetic power source switch, comprise housing, if binding post on the housing and the core assembly be located in described housing and break-make actuator, described core assembly comprises the coil sub-unit of a tubular and is placed in the static iron core of described coil sub-unit and dynamic iron core, it is characterized in that, described housing has the first cavity and the second cavity that are interconnected, described core assembly is positioned at the first cavity, described break-make actuator is positioned at described second cavity, the wall side, chamber of described second cavity is provided with supporting seat, described supporting seat is provided with the end cap for sealing described housing, at described supporting seat, epoxy sealing glue is perfused with in the housing oral area cavity that described end cap and described housing surround, inert gas is filled with in described first cavity and described second cavity.
2. a kind of electromagnetic power source switch according to claim 1, it is characterized in that, described break-make actuator comprises the push rod be embedded in described static iron core and the contact chip be fixed on for turning circuit on described push rod, 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 one end towards described second cavity, and the other end of described push rod stretches out in described static iron core and contacts separably with described dynamic 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 second cavity, and the other end and the described supporting seat of described back-moving spring fix.
5. a kind of electromagnetic power source switch according to claim 1, is characterized in that, be provided with supporting bracket between described first cavity and the second cavity, 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 inner metal shell 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 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 described in two between binding post.
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 |
|---|---|---|---|
| CN201410211619.7A CN105097358A (en) | 2014-05-19 | 2014-05-19 | Electromagnetic power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410211619.7A CN105097358A (en) | 2014-05-19 | 2014-05-19 | Electromagnetic power switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105097358A true CN105097358A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410211619.7A Pending CN105097358A (en) | 2014-05-19 | 2014-05-19 | Electromagnetic power switch |
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| CN (1) | CN105097358A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609375A (en) * | 2016-03-16 | 2016-05-25 | 上海法雷奥汽车电器系统有限公司 | Electromagnetic switch and starter employing same |
| CN108807043A (en) * | 2017-04-28 | 2018-11-13 | 比亚迪股份有限公司 | relay |
| CN112509870A (en) * | 2020-11-26 | 2021-03-16 | 娄底市安地亚斯电子陶瓷有限公司 | Double-layer ceramic arc extinguishing cover type high-voltage direct-current relay and assembling method thereof |
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| JPH10308152A (en) * | 1997-02-14 | 1998-11-17 | Valeo Equip Electric Moteur | Electric contactor |
| JP2005063741A (en) * | 2003-08-08 | 2005-03-10 | Denso Corp | Electromagnetic relay |
| CN101101833A (en) * | 2006-07-03 | 2008-01-09 | 浙江正泰电器股份有限公司 | Air-tight type low-voltage electrical apparatus with working contact and its oxygen-free seal method |
| CN101582351A (en) * | 2008-05-15 | 2009-11-18 | Ls产电株式会社 | Low-noise electromagnetic switch and making method thereof |
| CN101978453A (en) * | 2008-03-19 | 2011-02-16 | 松下电工株式会社 | Contact device |
| CN203367164U (en) * | 2013-05-30 | 2013-12-25 | 贵州天义电器有限责任公司 | Sealed magnetic blowout high-voltage direct-current contactor |
| CN203491196U (en) * | 2013-10-17 | 2014-03-19 | 上海西艾爱电子有限公司 | Large-power DC contactor |
| CN203850214U (en) * | 2014-05-19 | 2014-09-24 | 浙江道为尔科技有限公司 | Electromagnetic power switch |
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2014
- 2014-05-19 CN CN201410211619.7A patent/CN105097358A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10308152A (en) * | 1997-02-14 | 1998-11-17 | Valeo Equip Electric Moteur | Electric contactor |
| JP2005063741A (en) * | 2003-08-08 | 2005-03-10 | Denso Corp | Electromagnetic relay |
| CN101101833A (en) * | 2006-07-03 | 2008-01-09 | 浙江正泰电器股份有限公司 | Air-tight type low-voltage electrical apparatus with working contact and its oxygen-free seal method |
| CN101978453A (en) * | 2008-03-19 | 2011-02-16 | 松下电工株式会社 | Contact device |
| CN101582351A (en) * | 2008-05-15 | 2009-11-18 | Ls产电株式会社 | Low-noise electromagnetic switch and making method thereof |
| CN203367164U (en) * | 2013-05-30 | 2013-12-25 | 贵州天义电器有限责任公司 | Sealed magnetic blowout high-voltage direct-current contactor |
| CN203491196U (en) * | 2013-10-17 | 2014-03-19 | 上海西艾爱电子有限公司 | Large-power DC contactor |
| CN203850214U (en) * | 2014-05-19 | 2014-09-24 | 浙江道为尔科技有限公司 | Electromagnetic power switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609375A (en) * | 2016-03-16 | 2016-05-25 | 上海法雷奥汽车电器系统有限公司 | Electromagnetic switch and starter employing same |
| CN108807043A (en) * | 2017-04-28 | 2018-11-13 | 比亚迪股份有限公司 | relay |
| CN108807043B (en) * | 2017-04-28 | 2019-11-08 | 比亚迪股份有限公司 | Relay |
| CN112509870A (en) * | 2020-11-26 | 2021-03-16 | 娄底市安地亚斯电子陶瓷有限公司 | Double-layer ceramic arc extinguishing cover type high-voltage direct-current relay and assembling method thereof |
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Application publication date: 20151125 |
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