CN204189718U - Dustproof contactor - Google Patents
Dustproof contactor Download PDFInfo
- Publication number
- CN204189718U CN204189718U CN201420354180.9U CN201420354180U CN204189718U CN 204189718 U CN204189718 U CN 204189718U CN 201420354180 U CN201420354180 U CN 201420354180U CN 204189718 U CN204189718 U CN 204189718U
- Authority
- CN
- China
- Prior art keywords
- iron core
- contact
- dynamic iron
- contactor
- static
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 139
- 230000003068 static effect Effects 0.000 claims abstract description 67
- 239000000853 adhesive Substances 0.000 claims abstract description 26
- 230000001070 adhesive effect Effects 0.000 claims abstract description 26
- 230000004044 response Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Contacts (AREA)
Abstract
Embodiment of the present utility model provides a kind of dustproof contactor, comprising: the static iron core chamber with opening, and inside arranges static iron core and coil; Airtight dynamic iron core chamber, the back-moving spring that inside arranges dynamic iron core and is connected with described dynamic iron core; Airtight contact cavities, inside arranges fixed contact and moving contact; Wherein, the adhesive face of described static iron core is positioned at described dynamic iron core chamber, and the described dynamic iron core elastic force that can overcome described back-moving spring in response to the electric current on described coil to described static iron core move and with its adhesive; Wherein, described moving contact is connected with described dynamic iron core, to move with described dynamic iron core thus to contact with described fixed contact.This dustproof contactor can enter the adhesive face of dynamic and static iron core or the contact-making surface of dynamic and static contact by preventing pollution thing, thus guarantees the electric operating characteristics of contactor.
Description
Technical field
The utility model relates to a kind of contactor, particularly relates to a kind ofly to enter the dustproof contactor of the adhesive face of dynamic and static iron core or the contact-making surface of dynamic and static contact by preventing pollution thing.
Background technology
Contactor is a kind of widely used device for switching, is mainly used in frequent connection or disjunction AC and DC main circuit and jumbo control circuit.Contactor can be divided into A.C. contactor and D.C. contactor by the kind of controlled electric current.Conventional A.C. contactor can be divided into again electromagnetic type and vacuum type contactor.Electromagnetic AC contactor, primarily of electromagnetic system and contact system composition, relies on the adhesive of dynamic and static iron core under electromagnetic force in electromagnetic system to drive the closed of dynamic and static contact.
Existing contactor is due to the needs of heat radiation, the shell of contactor is provided with many louvres, these louvres make this contactor without dust reduction capability, thus make its electric operating characteristics very large by the impact of environment, because the pollutant of such as dust is easy to enter the adhesive face of dynamic and static iron core or enter the contact-making surface of dynamic and static contact; The former causes burning of coil, and the latter causes burning of the acceleration of contact wear or contact.Meanwhile, in some contactor constructions, the pollutant that dynamic and static contact produces in the process of breaking current also can drop on the contact-making surface of dynamic and static iron core, thus increases the risk of coil burnout.This all makes contactor lose efficacy when not reaching lifetime limitation.Therefore, unless be arranged on by contactor in dust-proof higher grade cupboard, otherwise entering of unavoidable environmental contaminants is always kept away.
For solving the problem, a kind of mode adds protective cover to this contactor.But, at the long-term heating power of work coil of contactor, if add a dust cover simply or its global design is become an airtight structure on the contactor of prior art, the temperature rise of contactor can be made to increase substantially, thus because falling the economy held and affect contactor use.
Utility model content
The technical solution of the utility model provides a kind of dustproof contactor and solves above-mentioned contradiction between the dust-proof of existing electromagnetic treadle and coil temperature rise.
The dustproof contactor of the utility model embodiment comprises: the static iron core chamber with opening, and inside arranges static iron core and coil; Airtight dynamic iron core chamber, the back-moving spring that inside arranges dynamic iron core and is connected with described dynamic iron core; Airtight contact cavities, inside arranges fixed contact and moving contact; Wherein, the adhesive face of described static iron core is positioned at described dynamic iron core chamber, and the described dynamic iron core elastic force that can overcome described back-moving spring in response to the electric current on described coil to described static iron core move and with its adhesive; Wherein, described moving contact is connected with described dynamic iron core, to move with described dynamic iron core thus to contact with described fixed contact.
In one example, described contact cavities is limited by a upper shell, and described dynamic iron core chamber and static iron core chamber are limited by a lower house and lay respectively at the upper and lower of described lower house.
In one example, the top of described upper shell is by cover plate for sealing.
In one example, the bottom of described upper shell and the top of described lower house integrally formed.
In one example, the bottom in described dynamic iron core chamber is provided with opening, and the adhesive face of described static iron core is embedded in described opening in a sealing fashion.
In one example, described moving contact is connected by the moving contact rack extended in a sealing fashion in described dynamic iron core chamber from described contact cavities with described dynamic iron core.
In one example, be provided with groove inside described cover plate, one end of described moving contact rack is assemblied in described groove movably.
In one example, described moving contact is arranged at the both sides that described moving contact rack is positioned at described contact cavities part in couples, and described dynamic iron core is arranged at the end that described moving contact rack is positioned at described dynamic iron core chamber part.
In one example, described moving contact is provided with spring on the face contacted with described fixed contact.
In one example, the position near described coil on the sidewall in described static iron core chamber is provided with ventilation slot.
In dustproof contactor provided by the utility model, contact cavities and dynamic iron core chamber are all formed as closed structure, and the adhesive face of static iron core is positioned at described airtight dynamic iron core chamber, therefore extraneous pollutant can not enter in contact cavities dynamic, the contact-making surface of fixed contact, can not enter in dynamic iron core chamber dynamic, the adhesive face of static iron core, and it is dynamic in interrupting process, the pollutant that between fixed contact, arc burning produces also can not enter in dynamic iron core chamber dynamic, the adhesive face of static iron core, thus make, the contact-making surface of fixed contact and dynamic, the adhesive face of static iron core remains clean, and then ensure that the electric property of contactor.In addition, the contact in contact cavities relies on terminals to be dispelled the heat by the heat transfer into and out of line; And static iron core chamber has the hatch frame of opposing open, the coil in it is dispelled the heat by this opening.As mentioned above, dustproof contactor provided by the utility model realize dust-proof while temperature rise controlled with the existing level suitable without the contactor of dust reduction capability.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present utility model is described in detail, clearly understands the utility model to make those of ordinary skill in the art.Wherein:
Fig. 1 is the structural representation of the dustproof contactor according to the utility model one embodiment, state when it is in coil electricity;
Fig. 2 shows according to the dustproof contactor of the utility model one embodiment state when coil losing electricity.
In accompanying drawing:
1-upper shell; 11-moving contact; 12-fixed contact; 13-terminals; 14-cover plate; 15-upper spacer; 2-lower house; 21-moves iron core; 22-static iron core; 23-coil; 24-lower clapboard; 25-insulation cover plate; 26-radiating groove-; 3-moving contact rack.
Embodiment
For making the object of embodiment of the present utility model, technical scheme and advantage clearly, the accompanying drawing below in conjunction with the utility model embodiment carries out clear, complete description to the technical scheme of embodiment of the present utility model.
Unless otherwise defined, technical term used herein or scientific terminology should be in field belonging to the utility model the ordinary meaning that the personage with general technical ability understands." first ", " second " that use in the utility model patent application specification and claims and similar word do not represent any order, quantity or importance, and are only used to distinguish different parts.Equally, the similar word such as " ", " " or " being somebody's turn to do " does not represent restricted number yet, but represents to there is at least one." to comprise " or the similar word such as " comprising " means to occur that element before this word or object contain the element or object that appear at this word presented hereinafter and equivalent, and do not get rid of other elements or object." on ", D score, etc. only for representing relative position relation, when be described object absolute position change after, then this relative position relation also may correspondingly change.
Dustproof contactor provided by the utility model comprises: the static iron core chamber with opening, and inside arranges static iron core and coil; Airtight dynamic iron core chamber, the back-moving spring that inside arranges dynamic iron core and is connected with described dynamic iron core; Airtight contact cavities, inside arranges fixed contact and moving contact; Wherein, the adhesive face of described static iron core is positioned at described dynamic iron core chamber, and the described dynamic iron core elastic force that can overcome described back-moving spring in response to the electric current on described coil to described static iron core move and with its adhesive; Wherein, described moving contact is connected with described dynamic iron core, to move with described dynamic iron core thus to contact with described fixed contact.
In this dustproof contactor, contact cavities and dynamic iron core chamber are all formed as closed structure, and the adhesive face of static iron core is positioned at described airtight dynamic iron core chamber, therefore extraneous pollutant can not enter the contact-making surface of dynamic and static contact in contact cavities, the adhesive face of dynamic and static iron core in dynamic iron core chamber can not be entered, and the pollutant that in interrupting process, between dynamic and static contact, arc burning produces also can not enter the adhesive face of dynamic and static iron core in dynamic iron core chamber, thus the adhesive face of the contact-making surface of dynamic and static contact and dynamic and static iron core is made to remain clean.The contact excessive wear that contact resistance when this effectively avoids combined floodgate between contact is too high to be caused or burn; Ensure that contactor magnetic circuit unobstructed when closed, overheated because of overcurrent that it also avoid that coil causes because of air gap unnecessary between dynamic and static iron core.In addition, static iron core chamber has the hatch frame of opposing open, and the coil in it is dispelled the heat by this opening, thus while realizing dust reduction capability, avoid the temperature rise increasing substantially contactor.
Fig. 1 shows an embodiment of dustproof contactor provided by the utility model.
With reference to Fig. 1, contact cavities is limited by upper shell 1, and in this upper shell 1, moving contact 11 is positioned at above fixed contact 12.Dynamic iron core chamber and static iron core chamber are limited by lower house 2 and are separated by lower clapboard 24, make dynamic iron core chamber be positioned at above static iron core chamber, that is: dynamic iron core 21 is positioned at above static iron core 22 and coil 23.As known in the art, fixed contact 12 is provided with terminals 13; Dynamic iron core 21 is provided with back-moving spring (not shown), in order to make iron core 21 move upward to be separated with static iron core 22 by its elastic force when coil losing electricity; Selection and the set-up mode of back-moving spring are well known in the art, and therefore not to repeat here.In addition, moving contact 11 can arrange touch spring (not shown) on the face contacted with fixed contact 12, with ensure coil 23 electric time contactor connection required by contact over travel.
Further, the top of upper shell 1 is sealed by cover plate 14, and this cover plate 14 can have certain thickness for the installation of moving contact rack 3 such as will mentioned after a while; The bottom of upper shell 1 and the top of lower house 2 are integrally formed (that is: upper spacer 15); Lower clapboard 24 is provided with opening (not shown), the adhesive face of static iron core 22 is embedded in a sealing fashion in this opening and also suitably can extends certain distance to stretch in dynamic iron core chamber, described sealing means can be any appropriate ways known in the art, in this no limit or repeat; Thus, contact cavities and dynamic iron core chamber all form hermetically-sealed construction.And, on the sidewall in static iron core chamber, preferably, radiating groove 26 can be set near coil 23 place, thus make static iron core chamber form the hatch frame of opposing open.The quantity of radiating groove 26 and size should be able to meet actual coil radiating requirements, in this no limit or repeat.It should be noted that, although static iron core chamber is the structure of opposing open, adhesive face due to static iron core 22 is also positioned at airtight dynamic iron core chamber, and the pollutant may introduced by radiating groove 26 can't impact the adhesive face of dynamic and static iron core 21,22, ensure that dust-proof effect.In addition, insulation cover plate 25 can be set bottom lower house 2 to guarantee the insulation property of contactor product.
As can be seen here, dustproof construction of the present utility model is easy to implement on the basis of existing contactor and substantially can not increase deployment cost.
It should be noted that, the mutual alignment (that is: being respectively contact cavities, dynamic iron core chamber and static iron core chamber from top to bottom) of the dynamic iron core chamber shown in Fig. 1, static iron core chamber and contact cavities, set-up mode (that is: divide be located in upper shell and lower house) and air-tight manner are only exemplary, the utility model is not limited thereto, but can be realized by the mode that this area is any known, as long as airtight, the opposing open in static iron core chamber and the interaction relation between dynamic iron core and moving contact of dynamic iron core chamber and contact cavities can be guaranteed.And the related electric of each housing, each iron core, each coil, each contact, each cover plate and each dividing plate and/or mechanical parameter design all belong to techniques well known, and for avoiding fuzzy the technical solution of the utility model, therefore not to repeat here.
Still with reference to Fig. 1, the moving contact 11 in contact cavities and the dynamic iron core 21 in dynamic iron core chamber are by passing contact cavities in a sealing fashion and the moving contact rack 3 extending into dynamic iron core chamber is connected.Such as, as discussed previously, the cover plate 14 of upper shell 1 can possess certain thickness thus allow to form groove within it, the upper end of moving contact rack 3 (such as can be passed through packing ring) in a sealing fashion and assembles in the cell and can move on the depth direction of groove, and its lower end can (such as by means of packing ring) extend in dynamic iron core chamber through upper spacer 15 in a sealing fashion, moving contact rack 3 can along movement in vertical direction in Fig. 1 in contact cavities and dynamic iron core chamber thus; A pair moving contact 11 is arranged at the both sides being positioned at that section of contact cavities of moving contact rack 3 respectively and aligns with the fixed contact 12 of below respectively, and dynamic iron core 21 is arranged at the end being positioned at that section in dynamic iron core chamber of moving contact rack 3 and aligns with the static iron core 22 of below.Dynamic iron core 21 is such as bound up on support 3 end by pin or other modes.Here, the size of the groove in cover plate 14 and moving contact rack 3 can design according to the related electric of housing, iron core, coil and contact and mechanical parameter, belongs to techniques well known, in this no limit and repeat.
It should be noted that, moving contact 11 shown in Fig. 2 and the connected mode between dynamic iron core 21 are only exemplary, the utility model is not limited thereto, but can be realized by any connected mode of interaction relation that is well known in the art, that can guarantee between dynamic iron core 21 and moving contact 11.Correspondingly, mounting means (such as by means of packing ring) between the cover plate 14 of above-described moving contact rack 3 and upper shell 1 and upper spacer 15 is only exemplary, the utility model is not limited thereto, but can be realized by any assembling mode of hermetically-sealed construction that is well known in the art, that can guarantee contact cavities and dynamic iron core chamber.
In order to enable, those skilled in the art are clearer to be understood structure of the present utility model all sidedly and easily implements the utility model, is described below by the operation principle of dustproof contactor of the present utility model.
Still with reference to Fig. 1, wherein dustproof contactor is in state when coil 23 is energized.Particularly, when coil 23 is energized, dynamic iron core 21 is subject to the electromagnetic attracting force coming from static iron core 22, the elastic force overcoming back-moving spring moves towards the direction of static iron core 22 (in FIG for moving downwards), the moving contact rack 3 be connected with dynamic iron core 21 correspondingly moves downward, thus drive moving contact 11 to move towards the direction of fixed contact 12, until contactor closes.
Be illustrated in figure 2 the state of dustproof contactor when coil 23 dead electricity in Fig. 1 embodiment.Particularly, when coil 23 dead electricity, dynamic iron core 21 is no longer subject to the electromagnetic attracting force of static iron core 22, but move (in fig. 2 for being moved upward) towards the direction away from static iron core 22 under the elastic force effect of back-moving spring, the moving contact rack 3 be connected with dynamic iron core 21 correspondingly moves upward, thus drive moving contact 11 to move towards the direction away from fixed contact 12, realize the opening operation of contactor.
In the above-mentioned course of work of contactor, the heat that coil 23 produces outwardly is spread by ventilation slot 26 by static iron core 22.In the utility model, the adhesive face of static iron core is positioned at airtight dynamic iron core chamber, and this static iron core chamber does not need higher degree of protection, so the radiating condition of its coil 23 is better than traditional contactor; And the heat radiation of the contact 11,12 of contactor mainly relies on terminals 13 to be realized by the heat transfer of line, so the contactor of its radiating effect and prior art is suitable.
Above execution mode is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill of relevant technical field; when not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore these changes or modification and equivalent thereof also belong to category of the present utility model, and the utility model scope of patent protection should be defined by the claims.
Claims (10)
1. a dustproof contactor, is characterized in that comprising:
Have the static iron core chamber of opening, inside arranges static iron core and coil;
Airtight dynamic iron core chamber, the back-moving spring that inside arranges dynamic iron core and is connected with described dynamic iron core;
Airtight contact cavities, inside arranges fixed contact and moving contact;
Wherein, the adhesive face of described static iron core is positioned at described dynamic iron core chamber, and the described dynamic iron core elastic force that can overcome described back-moving spring in response to the electric current on described coil to described static iron core move and with its adhesive;
Wherein, described moving contact is connected with described dynamic iron core, to move with described dynamic iron core thus to contact with described fixed contact.
2. dustproof contactor as claimed in claim 1, it is characterized in that, described contact cavities is limited by a upper shell; Described dynamic iron core chamber and static iron core chamber are limited by a lower house and lay respectively at the upper and lower of described lower house.
3. dustproof contactor as claimed in claim 2, it is characterized in that, the top of described upper shell is by cover plate for sealing.
4. dustproof contactor as claimed in claim 2, is characterized in that, the bottom of described upper shell and the top of described lower house integrally formed.
5. dustproof contactor as claimed in claim 2, it is characterized in that, the bottom in described dynamic iron core chamber is provided with opening, and the adhesive face of described static iron core is embedded in described opening in a sealing fashion.
6. dustproof contactor as claimed in claim 3, is characterized in that, described moving contact is connected by the moving contact rack extended in a sealing fashion in described dynamic iron core chamber from described contact cavities with described dynamic iron core.
7. dustproof contactor as claimed in claim 6, it is characterized in that, be provided with groove inside described cover plate, one end of described moving contact rack is assemblied in described groove movably.
8. dustproof contactor as claimed in claim 6, described moving contact is arranged at the both sides that described moving contact rack is positioned at described contact cavities part in couples; Described dynamic iron core is arranged at the end that described moving contact rack is positioned at described dynamic iron core chamber part.
9. the dustproof contactor according to any one of claim 1-5, is characterized in that, described moving contact is provided with spring on the face contacted with described fixed contact.
10. the dustproof contactor according to any one of claim 1-5, is characterized in that, the position near described coil on the sidewall in described static iron core chamber is provided with ventilation slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354180.9U CN204189718U (en) | 2014-06-27 | 2014-06-27 | Dustproof contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354180.9U CN204189718U (en) | 2014-06-27 | 2014-06-27 | Dustproof contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204189718U true CN204189718U (en) | 2015-03-04 |
Family
ID=52621694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420354180.9U Expired - Lifetime CN204189718U (en) | 2014-06-27 | 2014-06-27 | Dustproof contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204189718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783407A (en) * | 2016-12-05 | 2017-05-31 | 浙江英洛华新能源科技有限公司 | HVDC relay insulation frame |
| CN111508776A (en) * | 2020-03-13 | 2020-08-07 | 浙江城电电气有限公司 | AC contactor |
-
2014
- 2014-06-27 CN CN201420354180.9U patent/CN204189718U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783407A (en) * | 2016-12-05 | 2017-05-31 | 浙江英洛华新能源科技有限公司 | HVDC relay insulation frame |
| CN106783407B (en) * | 2016-12-05 | 2018-08-03 | 浙江英洛华新能源科技有限公司 | High voltage direct current relay insulation frame |
| CN111508776A (en) * | 2020-03-13 | 2020-08-07 | 浙江城电电气有限公司 | AC contactor |
| CN111508776B (en) * | 2020-03-13 | 2022-06-24 | 安德利集团有限公司 | AC contactor |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |