CN203931948U - Integral electric magnetic switch - Google Patents
Integral electric magnetic switch Download PDFInfo
- Publication number
- CN203931948U CN203931948U CN201420336929.7U CN201420336929U CN203931948U CN 203931948 U CN203931948 U CN 203931948U CN 201420336929 U CN201420336929 U CN 201420336929U CN 203931948 U CN203931948 U CN 203931948U
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- CN
- China
- Prior art keywords
- iron core
- push rod
- moving
- switch housing
- moving iron
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- Expired - Fee Related
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Abstract
The utility model relates to starter technical field, relates in particular to Integral electric magnetic switch.By telecontrol equipment, comprise the moving iron core that is arranged on coil one end, be connected to the static iron core of the coil other end, the push rod that moving iron core one end connects, outer the first sheathed back-moving spring of push rod; The push rod other end runs through static iron core, and the push rod end of stretching out outside static iron core is connected with movable contact spring, on this movable contact spring right side, is evenly equipped with at least ten projections; The round platform of push rod and moving iron core link is arranged with the second back-moving spring outward; Switch housing left end is provided with sealing device, and described sealing device comprises the annular deck with draw-in groove that arranges on the packing ring, switch housing left side that is set in " work " font on moving iron core left end push rod, is arranged on the sealing shroud between annular deck and packing ring; Described sealing shroud left side becomes pleated portions, and right side is stage portion; Described stage portion end is provided with the chuck that can snap in draw-in groove.Realize Integral electric magnetic switch and strengthen movable contact spring guide effect, strengthen push rod resilience force.
Description
Technical field
The utility model relates to starter technical field, relates in particular to Integral electric magnetic switch.
Background technology
Electromagnetic switch is a kind of important control element in automobile starter, its Main Function makes driven wheel and flywheel mesh fast and to exit exactly, and the armature main circuit of starter and storage battery are connected, starter armature is rotated in magnetic field, and then pilot engine.
The course of work of electromagnetic switch is, under the acting in conjunction of the electromagnetic attraction producing at coil, moving iron core moves right, and drives movable contact spring to move right together, and when movable contact spring contact with static contact, now coil is by short circuit, the connection of the main magnetic circuit of starter.
But there is following shortcoming in current electromagnetic switch: 1) movable contact spring guide effect is poor, cause electromagnetic switch contact easily bonding, 2) back-moving spring resilience force is not enough, cause electromagnetic switch contact easily bonding, 3) electromagnetic switch contact surface is stained with dust or the dirty surface that causes is smooth not and cause loose contact, when larger electric current passes through, can make switch overheated and oxidation or ablation, 3) in work, due to after dust or muddy water enters in switch housing, can cause moving iron core to get rusty, can cause that action is ineffective, clamping stagnation and can not working even, 4) while contacting with static contact due to movable contact spring, produce larger heat and can cause ablation, finally cause contact electrical arc erosion, affect electromagnetic switch useful life.
Utility model content
The purpose of this utility model is to provide a kind of enhancing movable contact spring guide effect, strengthens the Integral electric magnetic switch of push rod resilience force.
The technical solution of the utility model is as follows:
Integral electric magnetic switch, comprise switch housing, be arranged on switch housing inside coil, be connected to the end seat of switch housing right-hand member and be arranged on the static contact on end seat; In described coil, be provided with telecontrol equipment; Described telecontrol equipment comprises the moving iron core that is arranged on coil one end, is connected to the static iron core of the coil other end, the push rod that moving iron core one end connects, outer the first sheathed back-moving spring of push rod; The described push rod other end runs through static iron core, and the push rod end of stretching out outside static iron core is connected with movable contact spring, on this movable contact spring right side, is evenly equipped with at least ten projections; Described push rod and moving iron core link are provided with round platform, and this round platform is arranged with the second back-moving spring outward; Described switch housing left end is provided with sealing device, and described sealing device comprises the annular deck with draw-in groove arranging on the packing ring, switch housing left side that is set in " work " font on moving iron core left end push rod and is arranged on the sealing shroud between annular deck and packing ring; Described sealing shroud left side body wall fold is overlapped into pleated portions, and right side is for becoming stair-stepping stage portion; Described stage portion end is provided with the chuck that can snap in draw-in groove.
Described moving iron core and push rod link are provided with the first cone tank; Described static iron core is provided with the second cone tank towards the end face of moving iron core one end.Adopt pyramidal structure centering property good, easy accessibility, can eliminate gap voluntarily, can also transmit larger torque, increases guide effect.
Described switch housing right-hand member is provided with " V " shape flange bending inwards.Owing to adopting " V " shape flange, strengthen the clamping force between switch housing and end seat; Make between end seat and switch housing clamping more firm.
Described movable contact spring adopts tellurium copper alloy.Tellurium copper alloy has fabulous free cutting property and good electric conductivity, and corrosion resistance; Can effectively improve galvanic corrosion ability.
The beneficial effects of the utility model are: 1), because push rod one end is connected with moving iron core, the other end runs through static iron core, and push rod end is provided with movable contact spring; When strengthening the guide effect of push rod, indirectly increased the guide effect of movable contact spring, the generation that can effectively stop electromagnetic switch contact adhesion fault.
2) due to sheathed the first back-moving spring on push rod, and sheathed the second back-moving spring on round platform; By small one and large one two spring actings in conjunction, the resilience force of generation can effectively be pushed to home position by moving iron core, increases the stability in reliability and pushing course, has reduced greatly the generation of adhesion fault.
3), because the right-hand member at movable contact spring is provided with projection, effectively increasing heat radiation area, improves contact condition.
4), because switch housing left end is provided with sealing device, sealing device is comprised of packing ring, the annular deck of switch housing left end and the sealing shroud being arranged between annular deck and packing ring on moving iron core; Utilize sealing shroud to seal electromagnetic switch left end, effectively prevented that the foreign matters such as dust and water droplet from entering from electromagnetic switch left end, and cause moving, iron core gets rusty and dynamic and static contact is stained with grey situation.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, the utility model is aforesaid will be become apparent with other object, feature and advantage.
Wherein: Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model I portion enlarged diagram;
In accompanying drawing, 1 is switch housing, and 2 is coil, and 3 is end seat, 4 is moving iron core, and 5 is static iron core, and 6 is push rod, and 7 is the first back-moving spring, 8 is movable contact spring, and 9 is projection, and 10 is round platform, and 11 is the second back-moving spring, 12 is the packing ring of " work " font, and 13 is draw-in groove, and 14 is annular deck, and 15 is sealing shroud, 16 is pleated portions, and 17 is stage portion, and 18 is chuck, and 19 is the first cone tank, 20 is the second cone tank, and 21 is flange, and 22 is air bag.
Embodiment
Shown in Fig. 1-Fig. 2, Integral electric magnetic switch, comprise switch housing 1, be arranged on switch housing inside coil 2, be connected to the end seat 3 of switch housing right-hand member and be arranged on the static contact on end seat 3; In described coil, be provided with telecontrol equipment; Described telecontrol equipment comprise be arranged on coil one end moving iron core 4, be connected to the static iron core 5 of the coil other end, outer the first sheathed back-moving spring 7 of push rod 6, push rod that moving iron core 4 one end connect; The described push rod other end runs through static iron core, and the push rod end of stretching out outside static iron core is connected with movable contact spring 8, on these movable contact spring 8 right sides, is evenly equipped with at least ten projections 9; Described push rod and moving iron core link are provided with round platform 10, and this round platform is arranged with the second back-moving spring 11 outward; Described sealing device comprises the annular deck 14 with draw-in groove 13 arranging on the packing ring 12, switch housing left side that is set in " work " font on moving iron core left end push rod and is arranged on the sealing shroud 15 between annular deck 14 and packing ring; Described sealing shroud 15 left side body wall folds are overlapped into pleated portions 16, and right side is for becoming stair-stepping stage portion 17; Described stage portion end is provided with the chuck 18 that can snap in draw-in groove.
Because push rod one end is connected with moving iron core, the other end runs through static iron core, and push rod end is provided with movable contact spring, and movable contact spring, push rod, moving iron core are become one structure; When moving iron core moves, drive push rod to move, indirectly drive movable contact spring to move; Thereby increase the guide effect of movable contact spring, can more effective generation of stopping electromagnetic switch contact adhesion fault.
Due to sheathed the first back-moving spring on push rod, and sheathed the second back-moving spring on round platform; By small one and large one two spring actings in conjunction, the resilience force of generation can effectively be pushed to home position by moving iron core, increases the stability in reliability and pushing course, has reduced greatly the generation of adhesion fault between dynamic and static contact.
Because the right-hand member at movable contact spring is provided with projection, effectively increasing heat radiation area, improves contact condition.
Because switch housing left end is provided with sealing device, and sealing device is comprised of packing ring, the annular deck of switch housing left end and the sealing shroud being arranged between annular deck and packing ring on moving iron core; Utilize sealing shroud to seal electromagnetic switch left end, effectively prevented that the foreign matters such as dust, water droplet from entering and cause moving iron core to get rusty and dynamic and static contact is stained with grey situation from electromagnetic switch left end; Well protected the internal environment (because moving iron core can move left and right in switch housing, in moving iron core moving process, easily causing the dust and other impurities of switch housing left end to enter) of electromagnetic switch.
Because the back-moving spring power of electromagnetic switch is too small, can cause spring there is no the separated dynamic and static contact of enough reaction forces, cause release voltage too low, even can not discharge; By being provided with the first back-moving spring and the second back-moving spring, produce two resilience forces, by having, produce the separated dynamic and static contact of enough reaction forces, avoid the too low even not releasable problem of release voltage.
Operation principle: the magnetic force producing after coil electricity makes iron core move to static iron core, until moving iron core contacts with static iron core.Because moving iron core is connected with push rod, moving iron core moves and drives push rod to move, until the movable contact spring of push rod end contacts with static contact.In push rod moving process, compress the first back-moving spring.After dynamic and static contact contact, the circuit being connected with static contact is realized closed.After coil blackout, magnetic field disappears, and the suffered active force of moving iron core disappears, and now, the resilience force that the first back-moving spring and the second back-moving spring produce, promotes push rod and return to home position.When the movable contact spring of push rod end is separated with static contact, the circuit being connected with static contact is realized and being disconnected.
Described moving iron core and push rod link are provided with the first cone tank 19; Described static iron core is provided with the second cone tank 20 towards the end face of moving iron core one end.Because push rod and moving iron core junction and push rod and static iron core front end contact position all adopt taper; Adopt pyramidal structure centering property good, easy accessibility, can eliminate gap voluntarily, can also transmit larger torque, increases guide effect.Wherein put forth effort and the first cone tank left end second back-moving spring one end, the other end put forth effort with the second cone tank and the formed step surface of static iron core inwall on, thereby increase the support force of the second back-moving spring, the reaction force while improving the second back-moving spring work.
Because switch housing right-hand member is connected with end seat, after long-time use, cause connecting insecure, and then make dust and other impurities enter switch housing inside, affect electromagnetic switch useful life; For the problems referred to above, preferred, described switch housing right-hand member is provided with " V " shape flange 21 bending inwards.Owing to adopting " V " shape flange, strengthen the clamping force between switch housing and end seat; Make between end seat and switch housing clamping more firm.Preferably, in the gap forming between described flange and end seat, be provided with air bag 22, by air bag, increase sealing effectiveness between end seat and switch housing.
Due to the dynamic and static contact of electromagnetic switch in conjunction with time produce chatter phenomenon, in this section of flutter process, continuous combination and disconnection between dynamic and static contact, produced a large amount of arc sparks frequently, discharge a large amount of heats, make movable contact spring and static contact local overheating, cause the ablation of dynamic and static contact; For the problems referred to above, preferred, described movable contact spring adopts tellurium copper alloy; By adopting tellurium copper alloy, and tellurium copper alloy has fabulous free cutting property and good electric conductivity, and corrosion resistance; Can effectively improve galvanic corrosion ability.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model openly in scope; still can do some corrections or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (4)
1. Integral electric magnetic switch, comprise switch housing, be arranged on switch housing inside coil, be connected to the end seat of switch housing right-hand member and be arranged on the static contact on end seat; In described coil, be provided with telecontrol equipment; It is characterized in that, described telecontrol equipment comprises the moving iron core that is arranged on coil one end, is connected to the static iron core of the coil other end, the push rod that moving iron core one end connects, outer the first sheathed back-moving spring of push rod; The described push rod other end runs through static iron core, and the push rod end of stretching out outside static iron core is connected with movable contact spring, on this movable contact spring right side, is evenly equipped with at least ten projections; Described push rod and moving iron core link are provided with round platform, and this round platform is arranged with the second back-moving spring outward; Described switch housing left end is provided with sealing device, and described sealing device comprises the annular deck with draw-in groove arranging on the packing ring, switch housing left side that is set in " work " font on moving iron core left end push rod and is arranged on the sealing shroud between annular deck and packing ring; Described sealing shroud left side body wall fold is overlapped into pleated portions, and right side is for becoming stair-stepping stage portion; Described stage portion end is provided with the chuck that can snap in draw-in groove.
2. Integral electric magnetic switch according to claim 1, is characterized in that, described moving iron core and push rod link are provided with the first cone tank; Described static iron core is provided with the second cone tank towards the end face of moving iron core one end.
3. Integral electric magnetic switch according to claim 1, is characterized in that, described switch housing right-hand member is provided with " V " shape flange bending inwards.
4. Integral electric magnetic switch according to claim 1, is characterized in that, described movable contact spring adopts tellurium copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336929.7U CN203931948U (en) | 2014-06-23 | 2014-06-23 | Integral electric magnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336929.7U CN203931948U (en) | 2014-06-23 | 2014-06-23 | Integral electric magnetic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931948U true CN203931948U (en) | 2014-11-05 |
Family
ID=51827719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420336929.7U Expired - Fee Related CN203931948U (en) | 2014-06-23 | 2014-06-23 | Integral electric magnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931948U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782475A (en) * | 2016-04-22 | 2016-07-20 | 宁波奥凯安全科技有限公司 | Device for reliable electromagnetism self-maintenance of electromagnetic core |
| CN105914105A (en) * | 2016-06-14 | 2016-08-31 | 朱庆茂 | Magnetic-latching high-voltage direct-current relay, and assembling method and working method thereof |
| CN110137035A (en) * | 2019-06-05 | 2019-08-16 | 东风电驱动系统有限公司 | A kind of sealed electromagnetic switch being placed in below starter central axis |
| CN111211011A (en) * | 2015-04-13 | 2020-05-29 | 松下知识产权经营株式会社 | Electromagnetic relay |
-
2014
- 2014-06-23 CN CN201420336929.7U patent/CN203931948U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211011A (en) * | 2015-04-13 | 2020-05-29 | 松下知识产权经营株式会社 | Electromagnetic relay |
| CN105782475A (en) * | 2016-04-22 | 2016-07-20 | 宁波奥凯安全科技有限公司 | Device for reliable electromagnetism self-maintenance of electromagnetic core |
| CN105782475B (en) * | 2016-04-22 | 2018-12-11 | 宁波奥凯安全科技有限公司 | A kind of device making the reliable electromagnetism self-insurance of electromagnet core |
| CN105914105A (en) * | 2016-06-14 | 2016-08-31 | 朱庆茂 | Magnetic-latching high-voltage direct-current relay, and assembling method and working method thereof |
| CN110137035A (en) * | 2019-06-05 | 2019-08-16 | 东风电驱动系统有限公司 | A kind of sealed electromagnetic switch being placed in below starter central axis |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170623 |