CN205959887U - DC (direct -current) contactor - Google Patents
DC (direct -current) contactor Download PDFInfo
- Publication number
- CN205959887U CN205959887U CN201620934643.8U CN201620934643U CN205959887U CN 205959887 U CN205959887 U CN 205959887U CN 201620934643 U CN201620934643 U CN 201620934643U CN 205959887 U CN205959887 U CN 205959887U
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- China
- Prior art keywords
- fixed
- washer
- insulating
- metal core
- iron core
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- Withdrawn - After Issue
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Abstract
The utility model discloses a DC (direct -current) contactor, the present invention comprises a metal casing, the plastic pedestal board, quiet contact point, the calotte, the metal core bar, movable contact piece and electromagnet assembly, the top interval that the upper end of metal core bar lies in movable contact piece is equipped with down insulating washer and last insulating washer, on, be equipped with compression spring down between the insulating washer, metal core bar upper end is fixed and is equipped with insulating bush, insulating bush is greater than movable contact piece and lower insulating washer's high sum along fore -and -aft height, movable contact piece is fixed in on the lower extreme outer peripheral face of insulating bush, insulating washer is fixed in on the upper end outer peripheral face of insulating bush down. To the insulate high increase of bush of this DC (direct -current) contactor make it pass insulating washer, thereby the creepage distance of metal core bar increases, and the medium that finally improves between movable contact piece and the metal casing is withstand voltage, and messenger's product can be used in high medium environment, has increased substantially the range of application of product to reduce the life who punctures and damage risk, improvement DC (direct -current) contactor.
Description
Technical field
This utility model is related 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
Mouthful plastics seat board 114, this plastics seat board upper side is fixed with quiet contact point 104 and calotte 101, metal core rod 107 is along vertical
It is placed through in plastics seat board 114 to activity, the upper end of metal core rod 107 is stretched in calotte 101, and metal shell 116 is stretched in lower end
Interior, metal core rod 107 upper end is fixed with moving contacting plate 103 by insulating bushing 113, and moving contacting plate is located on quiet contact point
Side, metal core rod 107 lower end sets dynamic iron core 115, returning spring 106 and static iron core 108 successively, dynamic iron core 115 with metal-cored
Bar is fixedly connected, and metal core rod 107 end is movably placed in static iron core 108, and returning spring 106 is sheathed on metal core rod 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 producing between dynamic and static iron core drives metal core rod 107 to move up and down, thus drive being fixed on metal core rod
On moving contacting plate contact with a pair quiet contact point or disconnect, realize the power on/off of D.C. contactor.Metal core rod upper end is moved and is connect
Compression spring 102 for providing contact pressure to moving contacting plate is provided with by insulating washer 111 on contact.
In this structure, although being connected by insulating bushing 112 between metal core rod and quiet contact chip, this insulating bushing and
There is between insulating washer gap unavoidably, the creep age distance between metal core rod 107 and moving contacting plate 104 is the thickness of insulating bushing
Degree, because the finite thickness of this insulating bushing is so that limited by dielectric withstanding voltage between metal core rod 107 and moving contacting plate 104, limit
Make the range of application of product it is difficult to adapt to harsh working environment, the equipment fault problem such as easily punctured, damaged, thus
The service life of impact catalyst.
Content of the invention
In order to overcome drawbacks described above, this utility model provides a kind of D.C. contactor, it is possible to increase metal core rod with connect
Electric clearance between contact piece and dielectric withstanding voltage, thus improving the reliability of catalyst, are greatly lowered catalyst forceful electric power string
Enter the risk of breakdown damage.
This utility model be employed technical scheme comprise that to solve its technical problem：A kind of D.C. contactor, including gold
Belong to shell and be fixed on the plastics seat board of this metal shell upper end open, the upper side of this plastics seat board is fixed with a pair and quiet connects
Contact and the calotte sealing, metal core rod is placed through in described plastics seat board along longitudinally-moving, this metal core rod upper
End is stretched in described calotte, and lower end is stretched in described metal shell, and this metal core rod upper end is fixed with moving contacting plate, this dynamic contact
Piece is located at the top of quiet contact point described in a pair, is provided with electromagnet assembly, this electromagnet assembly can drive in described metal shell
Move this metal core rod along longitudinal back and forth movement so that described moving contacting plate is simultaneously turned on two quiet contact points or disconnects, described gold
The upper end belonging to core bar is interval with lower insulating washer and upper insulating washer, upper and lower felt pad positioned at the top of described moving contacting plate
It is provided with the compression spring for providing contact pressure to described moving contacting plate, described metal core rod upper end is fixed with absolutely between circle
Edge bushing, this insulating bushing is more than the height sum of described moving contacting plate and lower insulating washer along longitudinal height, and described moving connects
Contact is fixed on the lower end periphery face of this insulating bushing, and described lower insulating washer is fixed on the upper end outer peripheral face of this insulating bushing
On.
As further improvement of the utility model, between described insulating bushing and lower insulating washer, it is additionally provided with felt pad
Block.
As further improvement of the utility model, 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 further improvement of the utility model, described upper insulating washer is fixed by split pin.
As further improvement of the utility model, below described insulating bushing, it is provided with metal washer, this metal washer is solid
Surely it is sheathed in described metal core rod.
As further improvement of the utility model, described electromagnet assembly include dynamic iron core, static iron core, returning spring and
Coil, the lower end of described metal core rod passes successively and is placed in dynamic iron core, returning spring and static iron core, and this dynamic iron core is fixed on this gold
Belong on core bar, this static iron core is fixed on described metal shell bottom, and elasticity pushes against described dynamic ferrum respectively at the two ends of this returning spring
Core and static iron core, described coil is located at described static iron core and dynamic iron core periphery.
As further improvement of the utility model, described metal core rod is located above described upper insulating washer and is additionally provided with the
One retaining washer and the second retaining washer.
The beneficial effects of the utility model are：This utility model passes through to adjust the structure of insulating bushing and insulating washer
Whole, will the height of insulating bushing increase so as to pass through insulating washer, the creep age distance of metal core rod, thus increasing, finally carries
Dielectric withstanding voltage between high moving contacting plate and metal shell, makes product can apply in high media environment, is greatly improved
The range of application of product, and reduce and puncture and damage risk, improve the service life of D.C. contactor.
Brief description
Fig. 1 is the structural representation of Traditional DC catalyst；
Fig. 2 is the cut-away section structural representation of metal core rod described in Traditional DC catalyst and moving contacting plate；
Fig. 3 is this utility model structural representation；
Fig. 4 is the cut-away section structural representation of metal core rod described in the utility model and moving contacting plate；
Fig. 5 is metal core rod described in the utility model 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 spring
103 moving contacting plate 104 plastics seat board
105 coil 106 returning spring
107 metal core rod 108 static iron core
109 first retaining washer 110 second retaining washer
111 times insulating washer 112 insulating bushings
113 metal washer 114 plastics seat board
115 dynamic iron core 116 metal shell
Insulating washer 118 cross-over block on 117
Specific embodiment
In conjunction with accompanying drawing, this utility model is elaborated, but protection domain of the present utility model is not limited to following enforcements
Example, the simple equivalence changes in every case made with this utility model claim and description and modification, all still
Belong within this utility model patent covering scope.
Refering to Fig. 3-4, it is a kind of D.C. contactor described in the utility model, including metal shell 116 be fixed on this
The plastics seat board 114 of metal shell upper end open, the upper side of this plastics seat board is fixed with a pair quiet contact point 104 and rises close
The calotte 101 of envelope effect, metal core rod 107 is placed through in plastics seat board 114 along longitudinally-moving, the upper end of this metal core rod 107
Stretch in calotte 101, lower end is stretched in metal shell 116, this metal core rod upper end is fixed with moving contacting plate 103, this dynamic contact
Piece is located at the top of a pair quiet contact point, is provided with electromagnet assembly, this electromagnet assembly can drive in described metal shell 116
This metal core rod is along longitudinal back and forth movement so that described moving contacting plate is simultaneously turned on two quiet contact points or disconnects.This electric magnet
Assembly includes dynamic iron core 115, static iron core 108, returning spring 106 and coil 105, and the lower end of metal core rod 107 passes successively and is placed on
In dynamic iron core, returning spring and static iron core, this dynamic iron core is fixed in this metal core rod, and this static iron core is fixed on outside described metal
Shell bottom, elasticity pushes against dynamic iron core and static iron core respectively at the two ends of this returning spring, and coil is located at described static iron core and dynamic iron core
Periphery.During coil switching electricity, dynamic and static iron core produces electromagnetic force so that dynamic iron core drives metal core rod 107 to come and go along its axis
Motion, thus drive moving contacting plate to move up and down to realize being switched on or switched off with a pair of stationary contact, thus realizing opening and closing function.
The top that the upper end of metal core rod 107 is located at moving contacting plate is interval 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 rod
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
111 height sum, 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.This utility model changes insulating bushing in traditional structure pattern and is positioned only at metal core rod position
Partly going up in moving contacting plate, but the length of insulating bushing is elongated so as to upwardly extending and passing lower insulating washer, from
And so that the creep age distance between metal core rod and moving contacting plate is increased, refering to Fig. 2, this traditional creep age distance is a, and this practicality
Creep age distance in new is then a+b, or c+d is it is seen then that this greatly increases apart from relatively conventional creep age distance, so that
Pressure voltage between moving contacting plate and metal shell greatly improves so that this D.C. contactor can be applied is doing dielectric withstanding voltage
Environment, increases substantially 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 rod and moving contacting plate further, can be in described insulating bushing 112
Set cross-over block 118 and lower insulating washer 111 between, refering to Fig. 5, this at present insulating washer 111 can adopt nonisulated material,
As metal material, it would however also be possible to employ the isolation material such as plastics.In order to preferably fix moving contacting plate, outside the lower end of insulating bushing
Extend outwardly formation step week, moving contacting plate and lower insulating washer are sequentially arranged in above this step.Step can be to moving contacting plate
Open and break supporting role, and positioning is compressed by upper insulating washer.In order to increase connecing between insulating bushing lower end and metal core rod
Contacting surface is amassed, and is provided with metal washer 113, this metal washer fixed cover is in described metal core rod below insulating bushing.
Metal core rod upper end, for more preferable fixation pressure spring, is located above insulating washer on described also in metal core rod
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, this utility model, will insulating bushing by adjusting the structure of insulating bushing and insulating washer
Height increase so as to pass through insulating washer, the creep age distance of metal core rod, thus increasing, final improves moving contacting plate and metal
Dielectric withstanding voltage between housing, makes product can apply in high media environment, the range of application of product is greatly improved, and
Reduce and puncture and damage risk, improve the service life of D.C. contactor.
Claims (7)
1. a kind of D.C. contactor, including metal shell (116) with 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) sealing, 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 rod (107)
In cover (101), lower end is stretched in described metal shell (116), and this metal core rod upper end is fixed with moving contacting plate (103), and this moves
Contact chip is located at the top of quiet contact point described in a pair, is provided with electromagnet assembly, this electric magnet group in described metal shell (116)
Part can drive this metal core rod along longitudinal back and forth movement so that described moving contacting plate and two quiet contact points simultaneously turn on or disconnected
Open, the upper end of described metal core rod is interval with lower insulating washer (111) and upper felt pad positioned at the top of described moving contacting plate
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
It is characterised by：Described metal core rod upper end is fixed with insulating bushing (112), and 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.
2. D.C. contactor according to claim 1 it is characterised in that：Described insulating bushing (112) and lower insulating washer
(111) it is additionally provided with cross-over block (118) between.
3. D.C. contactor 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 are sequentially arranged in above this step.
4. D.C. contactor according to claim 1 it is characterised in that：Described upper insulating washer is fixed by split pin.
5. D.C. contactor 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 in described metal core rod.
6. D.C. contactor 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 rod passes successively and is placed on dynamic iron core, reply
In spring and static iron core, this dynamic iron core is fixed in this metal core rod, and this static iron core is fixed on described metal shell bottom, this time
Elasticity pushes against described dynamic iron core and static iron core respectively at the two ends of multiple spring, and described coil is located at outside described static iron core and dynamic iron core
Week.
7. D.C. contactor according to claim 1 it is characterised in that：Described metal core rod is located at described upper insulating washer
Top is additionally provided with the first retaining washer (109) and the second retaining washer (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620934643.8U CN205959887U (en) | 2016-08-25 | 2016-08-25 | DC (direct -current) contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620934643.8U CN205959887U (en) | 2016-08-25 | 2016-08-25 | DC (direct -current) contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205959887U true CN205959887U (en) | 2017-02-15 |
Family
ID=57976717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620934643.8U Withdrawn - After Issue CN205959887U (en) | 2016-08-25 | 2016-08-25 | DC (direct -current) contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205959887U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128857A (en) * | 2016-08-25 | 2016-11-16 | 昆山国力源通新能源科技有限公司 | D.C. contactor |
| CN107424871A (en) * | 2017-07-06 | 2017-12-01 | 湖北中生汽车电器有限公司 | A kind of automobile start and preheating relay |
| 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 |
| CN108428597A (en) * | 2018-03-27 | 2018-08-21 | 戴丁志 | Flat arc relay |
-
2016
- 2016-08-25 CN CN201620934643.8U patent/CN205959887U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128857A (en) * | 2016-08-25 | 2016-11-16 | 昆山国力源通新能源科技有限公司 | D.C. contactor |
| CN106128857B (en) * | 2016-08-25 | 2019-01-08 | 昆山国力源通新能源科技有限公司 | D.C. contactor |
| CN107424871A (en) * | 2017-07-06 | 2017-12-01 | 湖北中生汽车电器有限公司 | A kind of automobile start and preheating relay |
| 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 |
| CN108428597A (en) * | 2018-03-27 | 2018-08-21 | 戴丁志 | Flat arc relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170215 Effective date of abandoning: 20190108 |
|
| AV01 | Patent right actively abandoned |