CN207409438U - Closed type high-voltage DC contactor - Google Patents
Closed type high-voltage DC contactor Download PDFInfo
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- CN207409438U CN207409438U CN201721620283.5U CN201721620283U CN207409438U CN 207409438 U CN207409438 U CN 207409438U CN 201721620283 U CN201721620283 U CN 201721620283U CN 207409438 U CN207409438 U CN 207409438U
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- contact
- movable contact
- iron core
- breakback
- dynamic iron
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Abstract
The utility model provides a kind of closed type high-voltage DC contactor, including shell, stationary contact component, movable contact component and drive component, stationary contact component includes stationary contact, stationary contact stent and breakback contact stand, movable contact component includes movable contact, normally closed compression spring and movable contact support chip, drive component includes catch bar and dynamic iron core, stationary contact lower end is extended downwardly to be connected with breakback contact stand, catch bar lower end is connected with dynamic iron core, catch bar upper end is upwardly extended to be connected through movable contact support chip with movable contact, normally closed compression spring both ends are connected to respectively on movable contact and movable contact support chip, movable contact extends upward through the movable contact, and end is equipped with resetting spring, resetting spring upper end is fixedly connected with breakback contact stand inner wall, breakback contact stand lower end is supported on the felt pad of drive component, movable contact support chip is located on the felt pad inside breakback contact stand；Under off-position, stationary contact with movable contact is normally closed contacts.With the characteristics of simple in structure, reliability is high.
Description
Technical field
The utility model is related to D.C. contactor technical field, more particularly to a kind of closed type high-voltage DC contactor.
Background technology
In general, contactor nature is off, after electromagnetic coil is powered, contactor is closed, and makes circuit turn-on.
And in some occasions for needing to continue charge and discharge, contactor is needed for a long time in conducting state is closed, and turn-off time accounting is very
It is small, if using open type contactor, coil is needed to be powered always, the fever of coil and the stability of long time continuous working
Etc. factors add the unreliability in circuit, at this point, safer reliable using closed type contactor.
At present, in the main circuit of vehicle power supply switch, operating current is big and needs to ensure contact, using open type
D.C. contactor makes circuit reliability low；In addition if using conventional open type direct current in the protective loop of DC compensation electricity cabinet
In addition contactor when power source, will also be carried as discharge protection switch to the open type D.C. contactor in protective loop
For a power supply, it is turned on realizing the discharge prevention of capacitance, adds the complexity that system controls.
Utility model content
Technical problem to be solved in the utility model is：In order to overcome deficiency of the prior art, the utility model carries
For a kind of closed type high-voltage DC contactor.
The utility model solves its technical problem technical solution to be taken：A kind of closed type high voltage direct current contact
Device including shell, sets stationary contact component, movable contact component and drive component inside the shell, and the stationary contact component includes
Stationary contact, stationary contact stent and breakback contact stand, the movable contact component include movable contact, normally closed compression spring and movable contact support chip,
The driving component includes catch bar and dynamic iron core, and the stationary contact is fixedly connected by stationary contact stent with shell, described quiet
Contact lower end is extended downwardly to be connected with the breakback contact stand, and the catch bar lower end is connected with the dynamic iron core, catch bar upper end
It upwardly extends and is connected through movable contact support chip with movable contact, and the normally closed pressure is equipped between movable contact and movable contact support chip
Spring, the normally closed compression spring both ends are connected to movable contact respectively and on movable contact support chip, the movable contact extends upward through described dynamic
Contact, and end is equipped with resetting spring, the resetting spring upper end is fixedly connected with the breakback contact stand inner wall, the stationary contact
Seat lower end is supported on the felt pad of drive component, and the movable contact support chip is located at the felt pad inside the breakback contact stand
On；Under off-position, the stationary contact with the movable contact is normally closed contacts.
Further, in order to realize the sealing of structure, yoke set is further included, the breakback contact stand and drive component are closed in institute
It states in yoke set.
Further, the driving component further includes coil, coil rack, upper armature, lower armature and dynamic iron core guide sleeve, institute
The outside that dynamic iron core guide sleeve is set in the dynamic iron core is stated, the coil rack is set in the outer of the dynamic iron core guide sleeve
Side, the coil is around being located on the coil rack, and the upper armature and lower armature are respectively positioned at the upper and lower of the coil rack
Both ends, and the lower armature is located at the bottom in yoke set outside, the felt pad is located at the upper surface of the upper armature.
Further, the stationary contact uses copper stud, including threaded portion, fixed part and the contact being wholely set from top to bottom
Portion, fixed part with stationary contact stent for being fixedly connected, and the outer wall of the fixed part is equipped with axial striped, for increasing
With the contact area of epoxy resin, increase radial load, prevent stationary contact from being rotated by external force.
Further, in order to control the stroke of movable contact, it is equipped on the inner wall of the coil rack and is used to support dynamic iron core
The distance between the boss of guide sleeve, the boss bottom surface and yoke set is more than or equal to maximum when movable contact is separated with stationary contact
Stroke, the dynamic iron core bottom is equipped with flange, and the outer diameter of the flange is more than the internal diameter of the boss.
Operation principle：
Conventional sense, normally closed compression spring lower end are supported on movable contact support chip, generate upward elastic force, are made catch bar and are moved
Iron core is in suspended state, has resetting spring support with the vibration of dynamic iron core combination section so that movable contact and stationary contact are in and contact
State；Upon power-up, dynamic iron core moves downward under the action of electromagnetism the suction-combining force, and movable contact and stationary contact is made to separate and disconnect, this
When, movable contact compresses downwards normally closed compression spring, and resetting spring is pulled downwardly and stretches, and generates upward elastic potential energy；When power is off, by
It disappears in the suction-combining force of dynamic iron core, movable contact moves upwards under the action of resetting spring and normally closed compression spring, makes stationary contact again
It is closed with movable contact.
In addition, resetting spring in addition to having the function of power-off restoration, is additionally operable to keep the position of catch bar, due to promoting
Bar can move up and down, and on catch bar and there is no any support, be susceptible to deflection during moving up and down, adopt
The resetting spring on breakback contact stand is fixedly connected on one end to ensure the position of catch bar.
The beneficial effects of the utility model are：A kind of closed type high-voltage DC contactor provided by the utility model, has
It is simple in structure, the characteristics of reliability is high.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the best embodiment of the utility model；
Fig. 2 is the axial cross-sectional views of Fig. 1；
Fig. 3 is the structure diagram of stationary contact.
In figure：1st, shell, 2, stationary contact, 2-1, threaded portion, 2-2, fixed part, 2-3, contact site, 2-4, groove, 2-5, item
Line, 3, stationary contact stent, 4, breakback contact stand, 5, movable contact, 6, normally closed compression spring, 7, movable contact support chip, 8, catch bar, 9, dynamic iron
Core, 10, resetting spring, 11, yoke set, 12, coil, 13, coil rack, 14, upper armature, 15, lower armature, 16, dynamic iron core leads
To set, 17, boss, 18, flange.
Specific embodiment
The utility model is described in detail presently in connection with attached drawing.This figure is simplified schematic diagram, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows the composition related with the utility model.
As shown in Figure 1, a kind of closed type high-voltage DC contactor of the utility model, including shell 1, is arranged on shell 1
Interior stationary contact component, movable contact component and drive component, the stationary contact component include stationary contact 2, stationary contact stent 3 and quiet
Contact shoe 4, the movable contact component include movable contact 5, normally closed compression spring 6 and movable contact support chip 7, and the driving component includes pushing away
Lever 8 and dynamic iron core 9, the stationary contact 2 are fixedly connected by stationary contact stent 3 with shell 1, and 2 lower end of stationary contact is downward
Extension is connected with the breakback contact stand 4, and 8 lower end of catch bar is connected with the dynamic iron core 9, and 8 upper end of catch bar upwardly extends
It is connected through movable contact support chip 7 with movable contact 5, and the normally closed compression spring 6 is equipped between movable contact 5 and movable contact support chip 7,
6 both ends of normally closed compression spring are connected to movable contact 5 respectively and on movable contact support chip 7, the movable contact 5 extends upward through described dynamic
Contact 5, and end is equipped with resetting spring 10,10 upper end of resetting spring is fixedly connected with 4 inner wall of breakback contact stand, described
4 lower end of breakback contact stand is supported on the felt pad of drive component, and the movable contact support chip 7 is located inside the breakback contact stand 4
Felt pad on；Under off-position, the stationary contact 2 with the movable contact 5 is normally closed contacts.
Further, in order to realize the sealing of structure, yoke set 11, the breakback contact stand 4 and drive component closing are further included
In in yoke set 11.
Further, the driving component further includes coil 12, coil rack 13, upper armature 14, lower armature 15 and dynamic iron core
Guide sleeve 16, the dynamic iron core guide sleeve 16 are set in the outside of the dynamic iron core 9, and the coil rack 13 is set in described dynamic
The outside of iron core guide sleeve 16, around being located on the coil rack 13, the upper armature 14 and lower armature 15 divide the coil 12
Not Wei Yu the coil rack 13 upper and lower ends, and the lower armature 15 be located at the yoke set 11 outside bottom, it is described
Felt pad is located at the upper surface of the upper armature 14.
Further, the stationary contact 2 uses copper stud, including threaded portion 2-1, the fixed part 2- being wholely set from top to bottom
For being fixedly connected with stationary contact stent 3, centre is equipped with groove 2-4, and the fixed part by 2 and contact site 2-3, fixed part 2-2
The outer wall of 2-2 is equipped with axial striped 2-5, for increasing the contact area with epoxy resin, increases radial load, prevents stationary contact
Point 2 is rotated by external force, and contact site 2-3 is outer diameter from end to intermediate gradually increased hierarchic structure.
Further, in order to control the stroke of movable contact 5, it is equipped on the inner wall of the coil rack 13 and is used to support dynamic iron
The boss 17 of core guide sleeve 16,17 bottom surface of boss are more than or equal to movable contact 5 and stationary contact 2 with yoke set the distance between 11
Range during separation, 9 bottom of dynamic iron core is equipped with flange 18, and the outer diameter of the flange 18 is more than the boss 17
Internal diameter.
Operation principle：
Conventional sense, normally closed 6 lower end of compression spring are supported on movable contact support chip 7, generate upward elastic force, make catch bar 8
Suspended state is in dynamic iron core 9, so that movable contact 5 and stationary contact 2 are in contact condition；Upon power-up, dynamic iron core 9 is in electricity
Moved downward under the action of magnetic adhesion, separate movable contact 5 and stationary contact 2 and disconnect, at this point, movable contact 5 compress downwards it is normally closed
Compression spring 6, and resetting spring 10 is pulled downwardly and stretches, and generates upward elastic potential energy；When power is off, due to the suction-combining force of dynamic iron core 9
It disappears, movable contact 5 moves upwards under the action of resetting spring 10 and normally closed compression spring 6, and stationary contact 2 is made to be closed with movable contact 5 again
It closes.
Using the above-mentioned desirable embodiment according to the utility model as enlightenment, by above-mentioned description, relevant work
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (5)
1. a kind of closed type high-voltage DC contactor, it is characterised in that：Including shell (1), the stationary contact being arranged in shell (1)
Component, movable contact component and drive component, the stationary contact component include stationary contact (2), stationary contact stent (3) and breakback contact stand
(4), the movable contact component includes movable contact (5), normally closed compression spring (6) and movable contact support chip (7), and the driving component includes
Catch bar (8) and dynamic iron core (9), the stationary contact (2) are fixedly connected by stationary contact stent (3) with shell (1), the stationary contact
Point (2) lower end is extended downwardly to be connected with the breakback contact stand (4), and catch bar (8) lower end is connected with the dynamic iron core (9),
Catch bar (8) upper end is upwardly extended to be connected through movable contact support chip (7) with movable contact (5), and movable contact (5) and movable contact branch
The normally closed compression spring (6) is equipped between blade (7), normally closed compression spring (6) both ends are connected to movable contact (5) and movable contact respectively
On support chip (7), the movable contact (5) extends upward through the movable contact (5), and end is equipped with resetting spring (10), described multiple
Position spring (10) upper end is fixedly connected with the breakback contact stand (4) inner wall, and breakback contact stand (4) lower end is supported on drive component
Felt pad on, the movable contact support chip (7) is located on the internal felt pad of the breakback contact stand (4)；Under off-position, institute
State stationary contact (2) and the movable contact (5) normally closed contact.
2. closed type high-voltage DC contactor as described in claim 1, it is characterised in that：Yoke set (11) is further included, it is described
Breakback contact stand (4) and drive component are closed in the yoke set (11).
3. closed type high-voltage DC contactor as claimed in claim 2, it is characterised in that：The driving component further includes coil
(12), coil rack (13), upper armature (14), lower armature (15) and dynamic iron core guide sleeve (16), the dynamic iron core guide sleeve
(16) outside of the dynamic iron core (9) is set in, the coil rack (13) is set in the outer of the dynamic iron core guide sleeve (16)
Side, for the coil (12) around being located on the coil rack (13), the upper armature (14) and lower armature (15) are located at institute respectively
The upper and lower ends of coil rack (13) are stated, and the lower armature (15) is located at the bottom on the outside of the yoke set (11), it is described exhausted
Edge pad is located at the upper surface of the upper armature (14).
4. closed type high-voltage DC contactor as claimed in claim 3, it is characterised in that：The stationary contact (2) uses copper spiral shell
Column, including threaded portion (2-1), fixed part (2-2) and the contact site (2-3) being wholely set from top to bottom, the fixed part (2-2)
Outer wall be equipped with axial striped (2-5).
5. closed type high-voltage DC contactor as claimed in claim 3, it is characterised in that：The inner wall of the coil rack (13)
On be equipped with the boss (17) for being used to support dynamic iron core guide sleeve (16), between boss (17) bottom surface and yoke set (11)
Distance is more than or equal to range when movable contact (5) is separated with stationary contact (2), and dynamic iron core (9) bottom is equipped with flange
(18), and the outer diameter of the flange (18) be more than the boss (17) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721620283.5U CN207409438U (en) | 2017-11-28 | 2017-11-28 | Closed type high-voltage DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721620283.5U CN207409438U (en) | 2017-11-28 | 2017-11-28 | Closed type high-voltage DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207409438U true CN207409438U (en) | 2018-05-25 |
Family
ID=62317451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721620283.5U Active CN207409438U (en) | 2017-11-28 | 2017-11-28 | Closed type high-voltage DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207409438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461627A (en) * | 2018-12-27 | 2019-03-12 | 沈阳二三控制电器制造有限公司 | A kind of D.C. contactor of avoidable coil pollution and leakage arc |
| CN110581044A (en) * | 2019-10-11 | 2019-12-17 | 蚌埠市双环电子集团股份有限公司 | High-voltage direct-current contactor capable of realizing rapid breaking |
-
2017
- 2017-11-28 CN CN201721620283.5U patent/CN207409438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461627A (en) * | 2018-12-27 | 2019-03-12 | 沈阳二三控制电器制造有限公司 | A kind of D.C. contactor of avoidable coil pollution and leakage arc |
| CN110581044A (en) * | 2019-10-11 | 2019-12-17 | 蚌埠市双环电子集团股份有限公司 | High-voltage direct-current contactor capable of realizing rapid breaking |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |