CN106128857A - D.C. contactor - Google Patents
D.C. contactor Download PDFInfo
- Publication number
- CN106128857A CN106128857A CN201610717561.2A CN201610717561A CN106128857A CN 106128857 A CN106128857 A CN 106128857A CN 201610717561 A CN201610717561 A CN 201610717561A CN 106128857 A CN106128857 A CN 106128857A
- Authority
- CN
- China
- Prior art keywords
- core bar
- fixed
- contacting plate
- washer
- moving contacting
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/026—Details concerning isolation between driving and switching circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H2050/028—Means to improve the overall withstanding voltage, e.g. creepage distances
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Leads Or Probes (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a kind of D.C. contactor, including metal shell, plastics seat board, quiet contact point, calotte, metal core bar, moving contacting plate and electromagnet assembly, the upper end of metal core bar is positioned at the spaced above of moving contacting plate and is provided with lower insulating washer and upper insulating washer, on, it is provided with compression spring between lower insulating washer, metal core bar upper end is fixed with insulating bushing, insulating bushing is more than moving contacting plate and the height sum of lower insulating washer along longitudinal height, moving contacting plate is fixed on the lower end periphery face of insulating bushing, lower insulating washer is fixed on the upper end outer peripheral face of insulating bushing.The height of insulating bushing is increased by this D.C. contactor, pass through insulating washer, the creep age distance of metal core bar thus increase, the final dielectric withstanding voltage improved between moving contacting plate and metal shell, make product can apply in high media environment, the range of application of product is greatly improved, and minimizing punctures and damage risk, improves the service life of D.C. contactor.
Description
Technical field
The present invention relates to a kind of D.C. contactor.
Background technology
Existing D.C. contactor, refering to Fig. 1-2, including metal shell 116 be fixed on this metal shell 116 upper end and open
The plastics seat board 114 of mouth, this plastics seat board upper side is fixed with quiet contact point 104 and calotte 101, and metal core bar 107 is along vertical
Being placed through in plastics seat board 114 to activity, the upper end of metal core bar 107 is stretched in calotte 101, and metal shell 116 is stretched in lower end
In, metal core bar 107 upper end is fixed with moving contacting plate 103 by insulating bushing 113, and moving contacting plate is positioned on quiet contact point
Side, metal core bar 107 lower end sets iron core 115, returning spring 106 and static iron core 108 successively, and dynamic iron core 115 is with metal-cored
Bar is fixing to be connected, and metal core bar 107 end is movably placed in static iron core 108, and returning spring 106 is sheathed on metal core bar 107
Upper and two ends push against dynamic iron core 115 and static iron core 108 respectively, are additionally provided with coil 105 outside static iron core 108.When coil power on/off,
The effect of the power produced between dynamic and static iron core drives metal core bar 107 to move up and down, thus drives and be fixed on metal core bar
On moving contacting plate and the contact of a pair quiet contact point or disconnect, it is achieved the power on/off of D.C. contactor.Metal core bar upper end is dynamic to be connect
It is provided with the compression spring 102 for providing contact pressure to moving contacting plate by insulating washer 111 on contact.
In this structure, although being connected by insulating bushing 112 between metal core bar and quiet contact chip, but this insulating bushing and
There is between insulating washer gap, the creep age distance between metal core bar 107 and the moving contacting plate 104 i.e. thickness of insulating bushing unavoidably
Degree, due to the finite thickness of this insulating bushing so that the dielectric withstanding voltage between metal core bar 107 and moving contacting plate 104 is limited, limit
Make the range of application of product, it is difficult to adapt to harsh working environment, easily punctured, the equipment fault problem such as damage, thus
Affect the service life of catalyst.
Summary of the invention
In order to overcome drawbacks described above, the invention provides a kind of D.C. contactor, it is possible to increase metal core bar and contact point
Electric clearance between sheet and dielectric withstanding voltage, thus improve the reliability of catalyst, be greatly lowered catalyst forceful electric power seal in by
The risk of punch through damage.
The present invention is to solve that its technical problem be the technical scheme is that a kind of D.C. contactor, including metal outside
Shell and the plastics seat board being fixed on this metal shell upper end open, the upper side of this plastics seat board is fixed with a pair quiet contact point
With the calotte sealed, metal core bar is placed through in described plastics seat board along longitudinally-moving, and the upper end of this metal core bar is stretched
Entering in described calotte, lower end is stretched in described metal shell, and this metal core bar upper end is fixed with moving contacting plate, this moving contacting plate position
In the top of contact point quiet described in a pair, being provided with electromagnet assembly in described metal shell, this electromagnet assembly can drive this
Metal core bar is along longitudinal back and forth movement so that described moving contacting plate and two quiet contact points simultaneously turn on or disconnect, described metal-cored
The upper end of bar is positioned at the spaced above of described moving contacting plate and is provided with lower insulating washer and upper insulating washer, upper and lower insulating washer it
Between be provided with for described moving contacting plate provide contact pressure compression spring, described metal core bar upper end be fixed with insulation lining
Set, this insulating bushing is more than described moving contacting plate and the height sum of lower insulating washer, described moving contacting plate along longitudinal height
Being fixed on the lower end periphery face of this insulating bushing, described lower insulating washer is fixed on the upper end outer peripheral face of this insulating bushing.
As a further improvement on the present invention, it is additionally provided with cross-over block between described insulating bushing and lower insulating washer.
As a further improvement on the present invention, the lower end periphery of described insulating bushing extends outwardly formation step, described
Moving contacting plate and lower insulating washer are sequentially arranged in above this step.
As a further improvement on the present invention, described upper insulating washer is fixed by split pin.
As a further improvement on the present invention, below described insulating bushing, it is provided with metal washer, this metal washer fixed cover
It is located on described metal core bar.
As a further improvement on the present invention, described electromagnet assembly includes dynamic iron core, static iron core, returning spring and line
Circle, the lower end of described metal core bar passes successively and is placed in dynamic iron core, returning spring and static iron core, and this dynamic iron core is fixed on this metal
On core bar, this static iron core is fixed on bottom described metal shell, and the two ends of this returning spring elasticity respectively pushes against described dynamic iron core
And static iron core, described coil is positioned at described static iron core and dynamic its outer diameter.
As a further improvement on the present invention, described metal core bar is positioned at described upper insulating washer to be also arranged above first solid
Determine packing ring and the second retaining washer.
The invention has the beneficial effects as follows: the present invention, will be exhausted by the structure of insulating bushing and insulating washer being adjusted
The height of edge lining increases so that it is through insulating washer, the creep age distance of metal core bar thus increase, finally improve moving contacting plate
And the dielectric withstanding voltage between metal shell, makes product can apply in high media environment, the application of product is greatly improved
Scope, and reduce and puncture and damages risk, the service life of raising D.C. contactor.
Accompanying drawing explanation
Fig. 1 is the structural representation of Traditional DC catalyst；
Fig. 2 is the cut-away section structural representation of metal core bar described in Traditional DC catalyst and moving contacting plate；
Fig. 3 is present configuration schematic diagram；
Fig. 4 is the cut-away section structural representation of metal core bar of the present invention and moving contacting plate；
Fig. 5 is metal core bar of the present invention and moving contacting plate another form of cut-away section structural representation.
In conjunction with accompanying drawing, make the following instructions:
101 calotte 102 compression springs
103 moving contacting plate 104 plastics seat boards
105 coil 106 returning springs
107 metal core bar 108 static iron cores
109 first retaining washer 110 second retaining washers
111 times insulating washer 112 insulating bushings
113 metal washer 114 plastics seat boards
115 move iron core 116 metal shell
Insulating washer 118 cross-over block on 117
Detailed description of the invention
In conjunction with accompanying drawing, the present invention is elaborated, but protection scope of the present invention is not limited to following embodiment, the most in every case
The simple equivalence change made with scope of the present invention patent and description and modification, the most still belong to patent of the present invention and contain
Within the scope of lid.
Refering to Fig. 3-4, for a kind of D.C. contactor of the present invention, including metal shell 116 be fixed on this metal
The plastics seat board 114 of shell upper end open, the upper side of this plastics seat board is fixed with a pair quiet contact point 104 and plays sealing work
Calotte 101, metal core bar 107 is placed through in plastics seat board 114 along longitudinally-moving, and the upper end of this metal core bar 107 is stretched into
In calotte 101, lower end is stretched in metal shell 116, and this metal core bar upper end is fixed with moving contacting plate 103, this moving contacting plate position
In the top of a pair quiet contact point, being provided with electromagnet assembly in described metal shell 116, this electromagnet assembly can drive this gold
Belong to core bar along longitudinal back and forth movement so that described moving contacting plate and two quiet contact points simultaneously turn on or disconnect.This electromagnet assembly
Including dynamic iron core 115, static iron core 108, returning spring 106 and coil 105, the lower end of metal core bar 107 passes successively and is placed on dynamic ferrum
In core, returning spring and static iron core, this dynamic iron core is fixed on this metal core bar, and this static iron core is fixed at the bottom of described metal shell
Portion, the two ends of this returning spring elasticity respectively pushes against dynamic iron core and static iron core, and coil is positioned at described static iron core and dynamic its outer diameter.
During coil switching electricity, dynamic and static iron core produces electromagnetic force so that dynamic iron core drive metal core bar 107 along its axis back and forth movement,
Thus drive moving contacting plate to move up and down to realize being switched on or switched off with a pair stationary contact, thus realize opening and closing function.
The upper end of metal core bar 107 is positioned at the spaced above of moving contacting plate and is provided with lower insulating washer 111 and upper insulating washer
117, it is provided with the compression spring 102 for providing contact pressure to moving contacting plate between this upper and lower insulating washer.Metal core bar
107 upper ends are fixed with insulating bushing 112, and this insulating bushing is more than moving contacting plate 103 and lower insulating washer along longitudinal height
The height sum of 111, moving contacting plate 103 is fixed on the lower end periphery face of this insulating bushing, and lower insulating washer 111 is fixed on this
On the upper end outer peripheral face of insulating bushing.The present invention changes insulating bushing in traditional structure pattern and is positioned only at metal core bar and is positioned at dynamic
In part in contact chip, but the length of insulating bushing is elongated so that it is upwardly extend and pass lower insulating washer, so that
Creep age distance between metal core bar and moving contacting plate increases, and refering to Fig. 2, this traditional creep age distance is a, and in the present invention
Creep age distance is then a+b, or c+d, it is seen then that this is greatly increased apart from relatively conventional creep age distance, so that moving contacting plate
And the pressure voltage between metal shell is greatly improved so that this D.C. contactor can be applied and do the environment of dielectric withstanding voltage, greatly
Amplitude improves the range of application of product, reduces and punctures and damage risk, improves the service life of D.C. contactor.
In order to improve the creep age distance between metal core bar and moving contacting plate further, can be at described insulating bushing 112
And set cross-over block 118 between lower insulating washer 111, refering to Fig. 5, this at present insulating washer 111 can use nonisulated material,
Such as metal material, it would however also be possible to employ isolation material such as plastics.For the most fixing moving contacting plate, outside the lower end of insulating bushing
Extend outwardly formation step, moving contacting plate and lower insulating washer week to be sequentially arranged in above this step.Step can be to moving contacting plate
Open and break supporting role, and compressed location by upper insulating washer.In order to increase connecing between insulating bushing lower end and metal core bar
Contacting surface is amassed, and is provided with metal washer 113 below insulating bushing, and this metal washer fixed cover is located on described metal core bar.
Metal core bar upper end, for more preferable fixation pressure spring, is positioned on described at metal core bar and goes back above insulating washer
It is provided with the first retaining washer 109 and the second retaining washer 110, and upper insulating washer is fixed by split pin.
As can be seen here, the present invention, will the height of insulating bushing by the structure of insulating bushing and insulating washer being adjusted
Degree increases so that it is through insulating washer, the creep age distance of metal core bar thus increase, final improve moving contacting plate and metal shell
Between dielectric withstanding voltage, make product can apply in high media environment, the range of application of product be greatly improved, and reduce
Puncture and damage risk, improve the service life of D.C. contactor.
Claims (7)
1. a D.C. contactor, including metal shell (116) and the plastics seat board that is fixed on this metal shell upper end open
(114), the upper side of this plastics seat board is fixed with a pair quiet contact point (104) and the calotte (101) sealed, metal
Core bar (107) is placed through in described plastics seat board (114) along longitudinally-moving, and described cap is stretched in the upper end of this metal core bar (107)
In cover (101), lower end is stretched in described metal shell (116), and this metal core bar upper end is fixed with moving contacting plate (103), and this moves
Contact chip is positioned at the top of quiet contact point described in a pair, and described metal shell is provided with electromagnet assembly in (116), this electromagnet group
This metal core bar can be driven along longitudinal back and forth movement for part so that described moving contacting plate and two quiet contact points simultaneously turn on or disconnected
Opening, the upper end of described metal core bar is positioned at the spaced above of described moving contacting plate and is provided with lower insulating washer (111) and upper felt pad
Circle (117), is provided with the compression spring (102) for providing contact pressure to described moving contacting plate between upper and lower insulating washer, its
Being characterised by: described metal core bar upper end is fixed with insulating bushing (112), this insulating bushing is more than described along longitudinal height
Moving contacting plate and the height sum of lower insulating washer, described moving contacting plate is fixed on the lower end periphery face of this insulating bushing, institute
State lower insulating washer to be fixed on the upper end outer peripheral face of this insulating bushing.
D.C. contactor the most according to claim 1, it is characterised in that: described insulating bushing (112) and lower insulating washer
(111) cross-over block (118) it is additionally provided with between.
D.C. contactor the most according to claim 1, it is characterised in that: the lower end periphery of described insulating bushing is towards extension
Stretch formation step, described moving contacting plate and lower insulating washer to be sequentially arranged in above this step.
D.C. contactor the most according to claim 1, it is characterised in that: described upper insulating washer is fixed by split pin.
D.C. contactor the most according to claim 1, it is characterised in that: it is provided with metal washer below described insulating bushing
(113), this metal washer fixed cover is located on described metal core bar.
D.C. contactor the most according to claim 1, it is characterised in that: described electromagnet assembly include dynamic iron core (115),
Static iron core (108), returning spring (106) and coil (105), the lower end of described metal core bar passes successively and is placed on dynamic iron core, reply
In spring and static iron core, this dynamic iron core is fixed on this metal core bar, and this static iron core is fixed on bottom described metal shell, this time
The two ends elasticity respectively of multiple spring pushes against described dynamic iron core and static iron core, and described coil is positioned at outside described static iron core and dynamic iron core
Week.
D.C. contactor the most according to claim 1, it is characterised in that: described metal core bar is positioned at described upper insulating washer
It is also arranged above the first retaining washer (109) and the second retaining washer (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717561.2A CN106128857B (en) | 2016-08-25 | 2016-08-25 | D.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717561.2A CN106128857B (en) | 2016-08-25 | 2016-08-25 | D.C. contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106128857A true CN106128857A (en) | 2016-11-16 |
| CN106128857B CN106128857B (en) | 2019-01-08 |
Family
ID=57274044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610717561.2A Active CN106128857B (en) | 2016-08-25 | 2016-08-25 | D.C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106128857B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107871644A (en) * | 2017-09-29 | 2018-04-03 | 浙江宏舟新能源科技有限公司 | The HVDC relay and its assembly method of a kind of high creep age distance |
| CN110600328A (en) * | 2019-10-31 | 2019-12-20 | 浙江东亚电子有限公司 | Waterproof normally-open direct current contactor |
| CN112640023A (en) * | 2018-09-07 | 2021-04-09 | 欧姆龙株式会社 | Electromagnetic relay |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212161708U (en) * | 2020-02-26 | 2020-12-15 | 华为技术有限公司 | Contact device and electromagnetic switch |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2783340A (en) * | 1954-01-11 | 1957-02-26 | Cutler Hammer Inc | Hermetically sealed electro-magnetic contactors and the like |
| US5990771A (en) * | 1997-02-14 | 1999-11-23 | Valeo Equipements Electriques Moteur | Contactor for a motor vehicle starter, having improved protection for an electronic circuit of the contactor |
| CN2446653Y (en) * | 2000-08-29 | 2001-09-05 | 蔡松泉 | D.C contactor |
| CN201000865Y (en) * | 2007-01-15 | 2008-01-02 | 陈守约 | D.C. contactor |
| CN201886973U (en) * | 2010-12-16 | 2011-06-29 | 中国振华集团群英无线电器材厂 | High-power direct current contactor |
| CN204144161U (en) * | 2014-10-21 | 2015-02-04 | 贵州天义电器有限责任公司 | 200A novel seal D.C. contactor |
| CN205959887U (en) * | 2016-08-25 | 2017-02-15 | 昆山国力源通新能源科技有限公司 | DC (direct -current) contactor |
-
2016
- 2016-08-25 CN CN201610717561.2A patent/CN106128857B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2783340A (en) * | 1954-01-11 | 1957-02-26 | Cutler Hammer Inc | Hermetically sealed electro-magnetic contactors and the like |
| US5990771A (en) * | 1997-02-14 | 1999-11-23 | Valeo Equipements Electriques Moteur | Contactor for a motor vehicle starter, having improved protection for an electronic circuit of the contactor |
| CN2446653Y (en) * | 2000-08-29 | 2001-09-05 | 蔡松泉 | D.C contactor |
| CN201000865Y (en) * | 2007-01-15 | 2008-01-02 | 陈守约 | D.C. contactor |
| CN201886973U (en) * | 2010-12-16 | 2011-06-29 | 中国振华集团群英无线电器材厂 | High-power direct current contactor |
| CN204144161U (en) * | 2014-10-21 | 2015-02-04 | 贵州天义电器有限责任公司 | 200A novel seal D.C. contactor |
| CN205959887U (en) * | 2016-08-25 | 2017-02-15 | 昆山国力源通新能源科技有限公司 | DC (direct -current) contactor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107871644A (en) * | 2017-09-29 | 2018-04-03 | 浙江宏舟新能源科技有限公司 | The HVDC relay and its assembly method of a kind of high creep age distance |
| CN107871644B (en) * | 2017-09-29 | 2020-08-28 | 浙江宏舟新能源科技有限公司 | High-voltage direct-current relay with high creepage distance and assembly method thereof |
| CN112640023A (en) * | 2018-09-07 | 2021-04-09 | 欧姆龙株式会社 | Electromagnetic relay |
| CN110600328A (en) * | 2019-10-31 | 2019-12-20 | 浙江东亚电子有限公司 | Waterproof normally-open direct current contactor |
| CN110600328B (en) * | 2019-10-31 | 2024-04-16 | 浙江东亚电子有限公司 | Waterproof normally open direct current contactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106128857B (en) | 2019-01-08 |
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