CN201629271U - Electromagnetic switch - Google Patents
Electromagnetic switch Download PDFInfo
- Publication number
- CN201629271U CN201629271U CN2010201536530U CN201020153653U CN201629271U CN 201629271 U CN201629271 U CN 201629271U CN 2010201536530 U CN2010201536530 U CN 2010201536530U CN 201020153653 U CN201020153653 U CN 201020153653U CN 201629271 U CN201629271 U CN 201629271U
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- movable contact
- iron core
- electromagnetic switch
- coil
- contact rod
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Abstract
The utility model provides an electromagnetic switch which belongs to the technical field of switches, solves the problem of short service life of the existing electromagnetic switch, and comprises an electromagnet part and a switch part, wherein the electromagnet part comprises a tube-shaped coil support internally provided with an iron core, the coil support is wound with coil, the switch part is arranged at the front end of the coil support and comprises a cover plate and two fixed contacts arranged on the cover plate in a penetrating way, a moving contact rod is arranged between the fixed contact and the iron core and is provided with a movable contact piece and also a resetting mechanism, the inner end of the fixed contact is fixedly connected with a fixed contact piece which is made of alloy copper material, and the moving contact rod can move under the driving of the iron core to lead the movable contact piece to be contacted with the two fixed contact pieces simultaneously. The electromagnetic switch has the advantages of being waterproof and dustproof, avoiding unnecessary abrasion and having high durability.
Description
Technical field
The utility model belongs to the switching technique field, relates to a kind of switch that utilizes the variation of electromagnetic field and operate, particularly a kind of electromagnetic switch.
Background technology
Electromagnetic switch is divided two kinds of AC and DCs, be the power equipment connecting and disconnecting that are used to control remote, Fraquent start, utilize push-button switch electromagnetic switch energising or outage to be switched on or switched off the circuit of power equipment, control the work of high pressure, high current flow devices with less voltage and current, have safe and reliable advantage.But along with the rise of copper valency on the market, the cost of the electromagnetic switch of being made up of most copper parts also goes up synchronously, and the production and the sale of electromagnetic switch caused very big influence.
For this reason, people design a kind of electromagnetic switch of improvement, (its publication number is CN201213112Y), comprise electromagnet part and switch sections, electromagnet comprises that partly inside has the tubular coil brace of iron core, be wound with coil on the coil brace, switch sections is arranged at the end of coil brace, comprise cover plate and wear on the cover board two fixed contacts, the inner of fixed contact is fixed with static contact, and in this electromagnetic switch, coil is formed by the aluminum or aluminum alloy material, fixed contact then adopts iron material, and static contact adopts copper product.This electromagnetic switch is used the part parts instead other metal materials and is made under the situation that does not influence conductivity, reduced cost, has reduced the influence that the copper valency goes up and brought.But the useful life of the static contact that the employing copper product is made in this electromagnetic switch is shorter, and when contacting with movable contact spring, movable contact spring can the rotation of moving contact stem very easily form friction with static contact, further shortens its useful life.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing electromagnetic switch, and has proposed long electromagnetic switch of a kind of life-span.
The purpose of this utility model can realize by following technical proposal: a kind of electromagnetic switch, comprise electromagnet part and switch sections, described electromagnet comprises that partly inside has the tubular coil brace of iron core, be wound with coil on the coil brace, described switch sections is arranged at the end of coil brace, comprise cover plate and wear on the cover board two fixed contacts, be provided with movable contact rod between fixed contact and the iron core, movable contact rod is provided with movable contact spring, also be provided with resetting device on the movable contact rod, it is characterized in that, the inner of described fixed contact is fixed with static contact, described static contact adopts the alloyed copper material to form, and above-mentioned movable contact rod can be moved under the driving of iron core movable contact spring is contacted with two static contacts simultaneously.
This electromagnetic switch in use, the close push button switch is switched in coil, generate an electromagnetic field and drive iron core and movable contact rod motion, contact with two static contacts until movable contact spring, connect the circuit of power equipment, during the cut-off push button switch, iron core is subjected to the effect of back-moving spring elastic force to get back to initial condition, disconnects the power equipment circuit.The useful life of the static contact that the alloyed copper material is made is longer.
In above-mentioned electromagnetic switch, be socketed with the shell of a tubular on described coil brace and the coil, above-mentioned coil brace is provided with an annular dust cover with respect to the other end port of cover plate, the periphery of this dust cover circumferentially and shell be connected, interior week and iron core circumferentially are connected.The existence of dust cover neither influences the motion of iron core, has prevented that again aqueous vapor or other foreign matters from entering in the electromagnetic switch from the gap location between iron core and the shell.
In above-mentioned electromagnetic switch, be provided with the damping washer of making by elastomeric material between described coil and the shell.When having reduced the electromagnetic switch use coil is caused vibrations and loosening influence.
In above-mentioned electromagnetic switch, the end of described movable contact rod is fixed with an insulation cushion, the Plug Division that has " ten " font on the insulation cushion offers the spliced eye that is complementary with this Plug Division shape on the movable contact spring, closely peg graft and be arranged in this spliced eye in the Plug Division of above-mentioned insulation cushion.Avoided movable contact rod in when motion, movable contact spring rotate around it and with the phenomenon of static contact friction.
In above-mentioned electromagnetic switch, described resetting device comprises baffle plate and back-moving spring, described baffle plate and coil brace are connected and offer the through hole that passes for above-mentioned movable contact rod, and back-moving spring is socketed on the movable contact rod, and the two ends of back-moving spring contact with baffle plate with iron core respectively.
In above-mentioned electromagnetic switch, described movable contact rod and iron core are connected.
Compared with prior art, this electromagnetic switch has the following advantages:
1, the fixed contact of this electromagnetic switch adopts the alloyed copper material to form, and is more durable than copper product.
2, coil brace one end port is provided with an annular dust cover, prevents that aqueous vapor or other foreign matters from entering the wearing and tearing that influence switch work in the electromagnetic switch and cause parts from the gap location between iron core and the shell.
3, be provided with the damping washer of being made by elastomeric material between coil and the shell, the vibrations that in the time of reducing the electromagnetic switch use coil caused are with loosening.
4, closely peg graft and be arranged in the spliced eye of movable contact spring in the Plug Division of insulation cushion, and movable contact spring can the moving contact stem not rotated when motion, avoided friction unnecessary between movable contact spring and static contact.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of this electromagnetic switch.
Fig. 2 is the structural representation of movable contact rod and movable contact spring in the utility model.
Among the figure, 1, coil brace; 2, iron core; 3, coil; 4, shell; 5, cover plate; 6, damping washer; 7, dust cover; 8, fixed contact; 81, static contact; 9, movable contact rod; 91, movable contact spring; 911, spliced eye; 92, insulation cushion; 921, Plug Division; 10, baffle plate; 11, back-moving spring.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this electromagnetic switch comprises electromagnet part and switch sections, electromagnet comprises that partly inside has the tubular coil brace 1 of iron core 2, be wound with coil 3 on the coil brace 1, be socketed with the shell 4 of a tubular on coil brace 1 and the coil 3, be provided with the damping washer of making by elastomeric material 6 between coil 3 and the shell 4.Switch sections is arranged at the end of coil brace 1, comprises cover plate 5 and is located in two fixed contacts 8 on the cover plate 5.Coil brace 1 is provided with an annular dust cover 7 with respect to the other end port of cover plate 5, and the periphery of this dust cover 7 circumferentially is connected with shell 4, and interior week and iron core 2 circumferentially are connected, and the centre is made by flexible material.
The inner of fixed contact 8 is fixed with the static contact of being made by the alloyed copper material 81, and the outer end is connected with the supply line of power equipment.Be provided with movable contact rod 9 between fixed contact 8 and the iron core 2, the baffle plate 10 that movable contact rod 9 is provided with movable contact spring 91, be connected with coil brace 1 and be socketed in back-moving spring 11 on the movable contact rod 9, movable contact rod 9 is connected with iron core 2.Offer the through hole that passes for movable contact rod 9 on the baffle plate 10, the two ends of back-moving spring 11 contact with baffle plate 10 with iron core 2 respectively, and movable contact rod 9 can be moved under the driving of iron core 2 movable contact spring 91 is contacted with two static contacts 81 simultaneously.
As shown in Figure 2, the end of movable contact rod 9 is fixed with an insulation cushion 92, insulation cushion 92 has the Plug Division 921 of " ten " font, offer the spliced eye 911 that is complementary with this Plug Division 921 shapes on the movable contact spring 91, closely pegging graft and be arranged in this spliced eye 911 in the Plug Division 921 of insulation cushion 92, makes movable contact spring 91 moving contact stem 9 circumferentially to rotate.
During electromagnetic switch work, the close push button switch is to coil 3 power supplies, the drive iron core 2 that generates an electromagnetic field moves to cover plate 5 directions with the elastic force that movable contact rod 9 overcomes back-moving spring 11, promotes movable contact spring 91 along with movable contact rod 9 is moved together, contacts with two static contacts 81 simultaneously until movable contact spring 91.Movable contact spring 91 is with after static contact 81 contacts, and the circuit turn-on of power equipment is finished and utilized the conducting control to big electric current, big voltage apparatus of little electric current, small voltage.
When stopping to coil 3 power supplies, magnetic field diminishes, the power that iron core 2 and movable contact rod 9 are applied disappears, under the effect of back-moving spring 11 elastic force, movable contact rod 9, movable contact spring 91 and iron core 2 are together away from static contact 81, get back to initial condition, the circuit of power equipment disconnects, and finishes the disconnection control to big electric current, big voltage apparatus.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as coil brace 1, iron core 2, coil 3, shell 4, cover plate 5, damping washer 6, dust cover 7, fixed contact 8, static contact 81, movable contact rod 9, movable contact spring 91, spliced eye 911, insulation cushion 92, Plug Division 921, baffle plate 10, back-moving spring 11 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. electromagnetic switch, comprise electromagnet part and switch sections, described electromagnet comprises that partly inside has the tubular coil brace (1) of iron core (2), be wound with coil (3) on the coil brace (1), described switch sections is arranged at the end of coil brace (1), comprise cover plate (5) and be located in two fixed contacts (8) on the cover plate (5), be provided with movable contact rod (9) between fixed contact (8) and the iron core (2), movable contact rod (9) is provided with movable contact spring (91), movable contact rod also is provided with resetting device on (9), it is characterized in that, the inner of described fixed contact (8) is fixed with static contact (81), described static contact (81) adopts the alloyed copper material to form, and above-mentioned movable contact rod (9) can be moved under the driving of iron core (2) movable contact spring (91) is contacted with two static contacts (81) simultaneously.
2. electromagnetic switch according to claim 1, it is characterized in that, be socketed with the shell (4) of a tubular on described coil brace (1) and the coil (3), above-mentioned coil brace (1) is provided with an annular dust cover (7) with respect to the other end port of cover plate (5), the periphery of this dust cover (7) circumferentially and shell (4) be connected, interior week and iron core (2) circumferentially are connected.
3. electromagnetic switch according to claim 2 is characterized in that, is provided with the damping washer of being made by elastomeric material (6) between described coil (3) and the shell (4).
4. according to claim 1 or 2 or 3 described electromagnetic switch, it is characterized in that, the end of described movable contact rod (9) is fixed with an insulation cushion (92), the Plug Division (921) that has " ten " font on the insulation cushion (92), offering the spliced eye (911) that is complementary with this Plug Division (921) shape on the movable contact spring (91), closely pegs graft and is arranged in this spliced eye (911) in the Plug Division (921) of above-mentioned insulation cushion (92).
5. according to claim 1 or 2 or 3 described electromagnetic switch, it is characterized in that, described resetting device comprises baffle plate (10) and back-moving spring (11), described baffle plate (10) is connected with coil brace (1) and offers the through hole that passes for above-mentioned movable contact rod (9), back-moving spring (11) is socketed on the movable contact rod (9), and the two ends of back-moving spring (11) contact with baffle plate (10) with iron core (2) respectively.
6. electromagnetic switch according to claim 5 is characterized in that, described movable contact rod (9) is connected with iron core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201536530U CN201629271U (en) | 2010-04-09 | 2010-04-09 | Electromagnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201536530U CN201629271U (en) | 2010-04-09 | 2010-04-09 | Electromagnetic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629271U true CN201629271U (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201536530U Expired - Lifetime CN201629271U (en) | 2010-04-09 | 2010-04-09 | Electromagnetic switch |
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| CN (1) | CN201629271U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931031A (en) * | 2012-11-12 | 2013-02-13 | 湖州龙润汽车电机有限公司 | Integral type movable iron core structure of electromagnetic switch for novel energy car |
| CN105684121A (en) * | 2013-12-02 | 2016-06-15 | 特斯拉汽车公司 | Electromagnetic Switch With Damping Interface |
| CN107785191A (en) * | 2017-10-11 | 2018-03-09 | 浙江阳明汽车部件有限公司 | Door and window of vehicle direction switch assembly |
| CN107924788A (en) * | 2016-02-25 | 2018-04-17 | 富士电机机器制御株式会社 | Electromagnetic contactor |
| CN108146891A (en) * | 2017-12-04 | 2018-06-12 | 浙江海洋大学 | The anti-greasy filth precipitation equipment of underground crude oil water seal cave depot |
| CN108511273A (en) * | 2018-05-29 | 2018-09-07 | 锦州汉拿电机有限公司 | Waterproof prevents adhesion, anti-freeze starter relay |
-
2010
- 2010-04-09 CN CN2010201536530U patent/CN201629271U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931031A (en) * | 2012-11-12 | 2013-02-13 | 湖州龙润汽车电机有限公司 | Integral type movable iron core structure of electromagnetic switch for novel energy car |
| CN102931031B (en) * | 2012-11-12 | 2015-04-08 | 湖州龙润汽车电机有限公司 | Integral type movable iron core structure of electromagnetic switch for novel energy car |
| CN105684121A (en) * | 2013-12-02 | 2016-06-15 | 特斯拉汽车公司 | Electromagnetic Switch With Damping Interface |
| CN107924788A (en) * | 2016-02-25 | 2018-04-17 | 富士电机机器制御株式会社 | Electromagnetic contactor |
| CN107924788B (en) * | 2016-02-25 | 2019-09-20 | 富士电机机器制御株式会社 | Electromagnetic contactor |
| CN107785191A (en) * | 2017-10-11 | 2018-03-09 | 浙江阳明汽车部件有限公司 | Door and window of vehicle direction switch assembly |
| CN108146891A (en) * | 2017-12-04 | 2018-06-12 | 浙江海洋大学 | The anti-greasy filth precipitation equipment of underground crude oil water seal cave depot |
| CN108511273A (en) * | 2018-05-29 | 2018-09-07 | 锦州汉拿电机有限公司 | Waterproof prevents adhesion, anti-freeze starter relay |
| CN108511273B (en) * | 2018-05-29 | 2024-05-10 | 锦州汉拿电机有限公司 | Waterproof, anti-adhesion and anti-icing starter electromagnetic switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |