CN107910226A - Sealed high voltage direct current magnetic latching contactor - Google Patents
Sealed high voltage direct current magnetic latching contactor Download PDFInfo
- Publication number
- CN107910226A CN107910226A CN201711454148.2A CN201711454148A CN107910226A CN 107910226 A CN107910226 A CN 107910226A CN 201711454148 A CN201711454148 A CN 201711454148A CN 107910226 A CN107910226 A CN 107910226A
- Authority
- CN
- China
- Prior art keywords
- annular seal
- iron core
- seal space
- contact
- coil
- 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.)
- Pending
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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
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
A kind of sealed high voltage direct current magnetic latching contactor, its housing have contact and coil exit outside；Housing internal upper part is equipped with annular seal space, and contact exit is fixed on the upper surface of annular seal space, and armature is installed on the bottom of annular seal space, and the movable contact symmetrically having on armature is located at the underface of contact exit；Lower part is equipped with yoke in housing, and equipped with iron core, holding magnet steel on yoke, keep magnet steel upper end that magnetizer be housed, and make iron core, the upper end of magnetizer be located in annular seal space and is welded with the bottom of annular seal space, holding magnet steel is arranged on the underface between two iron cores and being located among armature；Coil is wound with by bobbin on two iron cores, the lead of two coils is electrically connected with coil exit respectively.Dynamic and static contact is sealed in vacuum cavity by the present invention, ensures the current interruption ability of contact during contact mechanism switching in a manner of vacuum extinction；And magnetic circuit is kept using differential type magnetic, realize the action and involution of contact.
Description
Technical field
The invention belongs to magnetic latching contactor manufacturing technology field, and in particular to a kind of sealed high voltage direct current magnetic keeps connecing
Tentaculum.
Background technology
Existing sealed high voltage direct current magnetic latching contactor is complicated, uses solenoid type structure, solenoid type more
The magnetic freeze mode magnetic structure that structure is formed is complicated, and product design size is big, and magnetic circuit leakage field is big, and magnetic retentivity is relatively small.And
And the structural factors such as use and the solenoid type armature of contained spring are limited to, cause product resistance to shock poor, can not meet
Some shock and vibrations, acceleration condition are higher or dislike the requirement omited in environment.
The content of the invention
Present invention solves the technical problem that：A kind of sealed high voltage direct current magnetic latching contactor is designed, first, being touched dynamic and static
Dot encapsulation, by cavity air-tightness and vacuum level requirements, ensures that contact mechanism switches in vacuum cavity in a manner of vacuum extinction
When contact current interruption ability；Second, using differential type magnetic freeze mode magnetic circuit, the action and involution of contact are realized.
The present invention technical solution be：A kind of sealed high voltage direct current magnetic latching contactor, including housing, the shell
There is contact exit, side has coil exit on the upper surface of body；It is characterized in that：The housing internal upper part is equipped with sealing
Chamber, the contact exit sealing is fixed on the upper surface of annular seal space and its lower face is located in annular seal space, the middle part of armature
The bottom of annular seal space is installed on by articulated shaft, and the upper surface of armature is symmetrically fixed with two movable contact springs, institute by collets
The cantilever end for stating movable contact spring is fixed with conductive sheet, and movable contact is fixed with conductive sheet, and movable contact is located at contact exit
The underface of lower face；
Lower part is equipped with yoke in the housing, and the first iron core, the second iron core are symmetrically housed on yoke, and the first iron core,
The upper end of second iron core is located in annular seal space and is welded with the bottom of annular seal space；Holding magnet steel is fixed with the yoke, and is protected
Hold magnet steel and be arranged on the underface between the first iron core, the second iron core and being located among armature；The upper end dress for keeping magnet steel
There is magnetizer, and the upper end of magnetizer is located in annular seal space and is welded with the bottom of annular seal space；Pass through on first iron core
First coil is wound with one bobbin, by being wound with the second coil on the second bobbin on second iron core；Described
The lead of one coil and the second coil is electrically connected with coil exit respectively.
The annular seal space is welded by the ceramic seal chamber and sealing bottom cover of lower end opening；The contact exit sealing
It is fixed on the upper surface of ceramic seal chamber and its lower face extends to ceramic seal intracavitary；First iron core, the second iron core
And the upper end of magnet both passes through after sealing bottom cover and is welded on sealing bottom cover.
The present invention has the advantage that compared with prior art and effect：
1st, existing solenoid type structure high-voltage DC contactor is only capable of enclosing armature part in seal cavity, utilizes electricity
The leakage field of magnetic system works, and Comparatively speaking magnetic efficiency is relatively low, and power consumption is big and retentivity is relatively low, shock resistance, vibration, acceleration
Poor performance；Magnetic circuit system of the present invention keeps system using the magnetic of differential type magnetic circuit, and magnetic efficiency is high, and magnetic retentivity is strong, and shock resistance, resist
Vibration and acceleration are functional.
2nd, the present invention also encloses the pole shoe portions such as the iron core of coil, magnetizer in seal cavity, can further improve
The magnetic efficiency of electromagnetic system, reduces power consumption, improves magnetic retentivity.
3rd, the armature component that the present invention is designed by symmetrical balance, further increases anti-vibration, shock resistance.And connect
The contact system of tentaculum is sealed in vacuum ceramic cavity, ensure that the seal request of contactor.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the outline structural diagram of the present invention；
Fig. 3 is the structure diagram of ceramic seal chamber of the present invention；
Fig. 4 is the structure diagram of armature of the present invention；
Fig. 5 is present invention sealing bottom cover and iron core, the attachment structure schematic diagram of magnetizer；
Fig. 6 is the iron core, coil and the structure diagram for keeping magnet steel of the present invention；
Fig. 7, Fig. 8, Fig. 9 are operation principle schematic diagram of the present invention.
Embodiment
With reference to a kind of embodiment of the attached drawing 1-9 description present invention.
A kind of sealed high voltage direct current magnetic latching contactor, including housing 21, have on the upper surface of the housing 21 and touch
Point exit 1, side has coil exit 2；21 internal upper part of housing is equipped with annular seal space 3, and the contact exit 1 seals
It is fixed on the upper surface of annular seal space 3 and its lower face is located in annular seal space 3, the middle part of armature 7 is installed on by articulated shaft 14
The bottom of annular seal space 3, and the upper surface of armature 7 is symmetrically fixed with two movable contact springs 6 by collets 8, the movable contact spring 6 hangs
Arm end is fixed with conductive sheet 5, and movable contact 4 is fixed with conductive sheet 5, and movable contact 4 is located at 1 lower face of contact exit
Underface；
Lower part is equipped with yoke 12 in the housing 21, and symmetrically equipped with the first iron core 11, the second iron core 20 on yoke 12, and
First iron core 11, the upper end of the second iron core 20 are located in annular seal space 3 and are welded with the bottom of annular seal space 3；It is solid on the yoke 12
Surely have and keep magnet steel 13, and keep magnet steel 13 to be arranged between the first iron core 11, the second iron core 20 and be located among armature 7 just
Lower section；The upper end for keeping magnet steel 13 is equipped with magnetizer 15, and the upper end of magnetizer 15 is located in annular seal space 3 and and annular seal space
3 bottom welding；By being wound with first coil 9, second iron core 20 in First Line coil 10 on first iron core 11
Upper pass through is wound with the second coil 18 on the second bobbin 19；The lead of 9 and second coil 18 of first coil respectively with line
Circle exit 2 is electrically connected.
The annular seal space 3 is welded by the ceramic seal chamber 16 and sealing bottom cover 17 of lower end opening；Draw the contact
The sealing of end 1 is fixed on the upper surface of ceramic seal chamber 16 and its lower face is extended in ceramic seal chamber 16；First iron
The upper end of core 11, the second iron core 20 and magnet 15 is welded on sealing bottom cover 17 after both passing through sealing bottom cover 17.
The differential type magnetic that the present invention has twin coil control keeps magnetic circuit, and bridging contact contact form, passes through permanent-magnet steel
Retentivity is provided for armature, ensures the reliability of contacts status.And contact system and iron core pole shoe, magnetizer pole shoe, armature etc.
Part magnetic circuit is sealed in ceramic seal vacuum cavity, ensures the current interruption energy of contact during contact system switching in a manner of vacuum extinction
Power.
The present invention retains it in the pole shoe portion of iron core and magnetizer inside sealing bottom cover by welding, permeable section
Then stay in outside sealing bottom cover, can effectively reduce magnetic circuit reluctance, strengthen electromagnetic efficiency；By fusion welds, by iron core, magnetic conduction
Body and sealing bottom cover are integrally welded, the sealing bottom cover after welding is had enough air-tightness；
Operation principle：The present invention uses differential type magnetic structure, when coil is in de-energized state, keeps magnet steel to pass through
Intrinsic magnetic field makes armature be maintained at position shown in Fig. 7, back contact turns at this time, and moving together contact disconnects armature sticking.When
After actuation coil (the second coil 18) adds excitation by polar requirement, the magnetic flux that actuation coil produces overcomes holding magnet steel to armature
Incipient suction force (as shown in Figure 8), under the action of electromagnetic attraction, armature is transformed into the position shown in Fig. 9, and armature motion drives
The conductive sheet of movable contact spring is contacted with dynamic circuit connector exit closure, realizes the connection of moving together contact, and back contact disconnects.When involution coil
When (first coil 9) is powered, the magnetic flux that involution coil produces overcomes holding magnet steel to the suction of armature, armature is turned over again
Turn, drive movable contact spring to return to Fig. 7 positions again, realize back contact conducting, moving together contact disconnects.
Above-described embodiment, simply presently preferred embodiments of the present invention, not be used for limit the present invention practical range, therefore it is all with
The equivalent variations that content described in the claims in the present invention is done, should all be included within scope of the invention as claimed.
Claims (2)
1. a kind of sealed high voltage direct current magnetic latching contactor, including housing (21), have on the upper surface of the housing (21)
Contact exit (1), side have coil exit (2)；It is characterized in that：Housing (21) internal upper part is equipped with annular seal space (3),
Contact exit (1) sealing is fixed on the upper surface of annular seal space (3) and its lower face is located in annular seal space (3), armature
(7) middle part is installed on the bottom of annular seal space (3) by articulated shaft (14), and the upper surface of armature (7) is right by collets (8)
Title is fixed with two movable contact springs (6), and the cantilever end of the movable contact spring (6) is fixed with conductive sheet (5), and fixed on conductive sheet (5)
There is movable contact (4), and movable contact (4) is located at the underface of contact exit (1) lower face；
The interior lower part of the housing (21) is equipped with yoke (12), and symmetrically equipped with the first iron core (11), the second iron core on yoke (12)
(20), and the first iron core (11), the upper end of the second iron core (20) are located in annular seal space (3) and are welded with the bottom of annular seal space (3)；
It is fixed with the yoke (12) and keeps magnet steel (13), and keeps magnet steel (13) to be arranged on the first iron core (11), the second iron core
(20) underface between and among armature (7)；The upper end for keeping magnet steel (13) is equipped with magnetizer (15), and magnetic conduction
The upper end of body (15) is located in annular seal space (3) and is welded with the bottom of annular seal space (3)；Pass through first on first iron core (11)
First coil (9) is wound with bobbin (10), by being wound with the second bobbin (19) on second iron core (20)
Two coil (18)；The lead of the first coil (9) and the second coil (18) is electrically connected with coil exit (2) respectively.
2. a kind of sealed high voltage direct current magnetic latching contactor according to claim 1, it is characterized in that：The annular seal space
(3) it is welded by the ceramic seal chamber (16) and sealing bottom cover (17) of lower end opening；Contact exit (1) sealing is fixed
On the upper surface of ceramic seal chamber (16) and its lower face is extended in ceramic seal chamber (16)；First iron core (11),
The upper end of second iron core (20) and magnet (15) is welded on sealing bottom cover (17) after both passing through sealing bottom cover (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454148.2A CN107910226A (en) | 2017-12-28 | 2017-12-28 | Sealed high voltage direct current magnetic latching contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454148.2A CN107910226A (en) | 2017-12-28 | 2017-12-28 | Sealed high voltage direct current magnetic latching contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107910226A true CN107910226A (en) | 2018-04-13 |
Family
ID=61871747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711454148.2A Pending CN107910226A (en) | 2017-12-28 | 2017-12-28 | Sealed high voltage direct current magnetic latching contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107910226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900940A (en) * | 2019-03-25 | 2019-06-18 | 深圳龙电电气股份有限公司 | Electric energy meter |
| CN111613482A (en) * | 2019-02-25 | 2020-09-01 | 贵州振华群英电器有限公司（国营第八九一厂） | Miniature ceramic shell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049936A (en) * | 1989-08-28 | 1991-03-13 | 弗雷德里克·阿里·杜伊姆斯特拉 | Latching relay switch assembly |
| JPH03276532A (en) * | 1990-03-27 | 1991-12-06 | Matsushita Electric Works Ltd | Relay |
| CN208027981U (en) * | 2017-12-28 | 2018-10-30 | 陕西群力电工有限责任公司 | Sealed high voltage direct current magnetic latching contactor |
-
2017
- 2017-12-28 CN CN201711454148.2A patent/CN107910226A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049936A (en) * | 1989-08-28 | 1991-03-13 | 弗雷德里克·阿里·杜伊姆斯特拉 | Latching relay switch assembly |
| JPH03276532A (en) * | 1990-03-27 | 1991-12-06 | Matsushita Electric Works Ltd | Relay |
| CN208027981U (en) * | 2017-12-28 | 2018-10-30 | 陕西群力电工有限责任公司 | Sealed high voltage direct current magnetic latching contactor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613482A (en) * | 2019-02-25 | 2020-09-01 | 贵州振华群英电器有限公司（国营第八九一厂） | Miniature ceramic shell |
| CN109900940A (en) * | 2019-03-25 | 2019-06-18 | 深圳龙电电气股份有限公司 | Electric energy meter |
| CN109900940B (en) * | 2019-03-25 | 2021-02-05 | 深圳龙电华鑫控股集团股份有限公司 | Electric energy meter |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180413 |
|
| WD01 | Invention patent application deemed withdrawn after publication |