CN103474296A - Magnetic latching relay free of magnetism leakage - Google Patents
Magnetic latching relay free of magnetism leakage Download PDFInfo
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- CN103474296A CN103474296A CN2013104433159A CN201310443315A CN103474296A CN 103474296 A CN103474296 A CN 103474296A CN 2013104433159 A CN2013104433159 A CN 2013104433159A CN 201310443315 A CN201310443315 A CN 201310443315A CN 103474296 A CN103474296 A CN 103474296A
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- yoke
- latching relay
- magnetic latching
- moving armature
- movable contact
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Abstract
The invention discloses a magnetic latching relay free of magnetism leakage and aims at solving the problem that an existing magnetic latching relay leaks magnetism. According to the magnetic latching relay free of magnetism leakage, an electromagnetic coil, upper outer yoke iron, lower outer yoke iron, upper inner yoke iron, lower inner yoke iron, a binding post, a moving armature, a movable contact piece, a static contact piece, a lengthened rod assembly, a contact and the like are combined, wherein the moving armature and the movable contact piece can in reciprocating motion in a straight line in the vertical direction, form magnetic path connection with the upper outer yoke iron and the lower inner yoke iron when moving to upper limiting positions, and form magnetic path connection with the upper inner yoke iron and the lower outer yoke iron when moving to lower limiting positions, the contact is connected with the static movable contact piece when the moving armature and the movable contact piece move to the lower limiting positions. The magnetic latching relay is improved in electromagnetic compatibility ability, shock resistance ability and vibration resistance ability, improves mechanism reliability, and expands a application range.
Description
Technical field
The present invention relates to a kind of magnetic leakage free magnetic latching relay, belong to electronic information technical field, can be used for various electromechanical equipments.
Background technology
At present, common magnetic latching relay, its structure generally comprises pedestal, solenoid, permanent magnet and two yokes that are positioned at the pedestal two ends, be provided with cursor between two yokes, pedestal one side is provided with movable contact spring and static contact spring piece, and cursor drives the movable contact spring action by intermediate mass.When solenoid passes to the pulse current of different directions, its electromagnetic force produced is rotated cursor, drives contiguous block and movable contact spring and swings, the contact that realizes static contact spring piece and movable contact spring with separate, thereby control closure and the disconnection of external circuit.After realizing this process, magnetic latching relay will keep current state, reaches energy-saving effect.But the problem that this version is brought is the leakage in magnetic field, outside high-intensity magnetic field also may form and disturb relay, cause the relay misoperation work, can't be applied to specific occasion, main actuating mechanism adopts the System of Rotating about Fixed Axis forms of motion, if its forms of motion is further simplified, its reliability can further improve.
Summary of the invention
More complicated in order to overcome existing magnetic latching relay structure, the deficiency of Electromagnetic Compatibility and anti shock and vibration, the present invention aims to provide a kind of magnetic latching relay, and this magnetic latching relay Electromagnetic Compatibility and anti shock and vibration ability all are improved, and reliability is high.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of magnetic leakage free magnetic latching relay, comprise shell, and its design feature is be provided with interior yoke, lower interior yoke, upper outside yoke, lower outside yoke, moving armature, movable contact spring in described shell and be sleeved on the solenoid on moving armature; Described upper outside yoke and lower outside yoke form the cavity that holds described interior yoke and lower interior yoke; Described interior yoke and lower interior yoke form the cavity that holds described solenoid, moving armature main body and movable contact spring; The lower end of described moving armature is connected with an extension rod assembly, and the lower end of this extension rod assembly connects contact; Described upper outside yoke is connected by a permanent magnet with upper interior yoke; Described solenoid is electrically connected to binding post; Described shell is provided with static contact in middle and lower part; Described moving armature and movable contact spring can move at the vertical direction reciprocating linear, form magnetic circuit with described upper outside yoke with lower interior yoke when this moving armature moves to the limes superiors position with movable contact spring and be connected, form magnetic circuit with described interior yoke and lower outside yoke when this moving armature moves to the limit inferior position with movable contact spring and be connected; Described contact is connected with described static contact when moving armature and movable contact spring move to the limit inferior position.
Be below the technical scheme of further improvement of the present invention:
Further, be provided with the holder of fixing described binding post between described upper outside yoke and upper interior yoke.Described upper outside yoke and upper interior yoke keep relative position by holder.
Further, be provided with lower retainer between described lower outside yoke and lower interior yoke.Described lower outside yoke and lower interior yoke keep relative position by lower retainer.
Preferably, described upper outside yoke and lower outside yoke concentric are arranged and close contact.
Preferably, described interior yoke and lower interior yoke concentric are arranged and close contact.
Preferably, described shell integral body is tubular.
Preferably, described permanent magnet is annular magnet.
Further, described shell upper end is provided with upper cover, and this shell lower end is provided with lower cover; Described binding post is fixed on this and covers.
By said structure, described magnetic leakage free magnetic latching relay comprises cylindrical case and is located at upper and lower interior yoke and the upper and lower outer yoke of enclosure, upper and lower retainer is positioned at upper and lower outer yoke inside, be provided with solenoid and moving armature between upper and lower interior yoke, the extension rod assembly is arranged at the moving armature lower end, extension rod assembly lower end connects contact, shell upper arranges upper cover, being arranged symmetrically with binding post in upper cover is connected with solenoid, the shell middle and lower part arranges static contact, and outer casing underpart arranges lower cover.Described upper and lower interior yoke is positioned at upper and lower outer yoke inside.Described upper and lower interior yoke does not directly contact with upper and lower outer yoke.
Between described annular permanent-magnet body setting and upper outside yoke and upper interior yoke, with upper outside yoke inner surface, with upper interior yoke outer surface, contact respectively.Described moving armature can be realized moving up and down in the solenoid cavity.
Described extension rod assembly is fixedly connected on the moving armature bottom.Described contact is connected with the extension rod assembly.Described upper cover and upper outside yoke close contact are installed, and described lower cover and shell close contact are installed.
Thus, magnetic leakage free magnetic latching relay of the present invention is compared existing product permanent magnet is fixedly mounted, yoke structure is changed to tubular form, solved the problem of common magnetic latching relay Electromagnetic Compatibility deficiency, and make the magnetic latching relay applicable situation no longer be subject to particular restriction, and change actuating mechanism into rectilinear motion by System of Rotating about Fixed Axis, improved the ability of magnetic latching relay shock resistance and vibration, improve mechanism reliability, enlarged the scope of application.
Operation principle of the present invention is: when solenoid passes to pulse voltage, magnetic circuit part work, magnetic circuit part interlock effect attracts moving armature to move to extreme position, drive the motion of extension rod assembly, reach and make the effect that contacts or separate with static contact with the hard-wired contact of extension rod assembly, thereby the purpose of external circuit break-make is controlled in realization.
With the magnetic latching relay of prior art, compare, the invention has the beneficial effects as follows: thus the present invention has abandoned the form that existing cursor System of Rotating about Fixed Axis drives contiguous block motion control circuit break-make, change to the related movable contact spring of moving armature and extension rod assembly straight reciprocating motion band moving contact and control the external circuit break-make, abandon the mode of operation of existing permanent magnet with the action armature motion, changing to permanent magnet fixedly lays, abandoned the laminated structure form of existing product yoke, change to concentric tubular structure, can effectively prevent that internal magnetic field from revealing and outside high-intensity magnetic field disturbs, thereby improved the reliability of mechanism action.
The technical indicator that the embodiment of the present invention reaches is: driving voltage: 12V; Drive maximum current: 0.1A; External circuit electric current: 220A.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
The accompanying drawing explanation
The structural representation that Fig. 1 is an embodiment of the present invention;
Fig. 2 is magnetic circuit schematic diagram when in Fig. 1, moving armature and extension rod assembly are positioned at the limes superiors position;
Fig. 3 is magnetic circuit schematic diagram when in Fig. 1, moving armature and extension rod assembly are positioned at the limit inferior position;
The schematic appearance that Fig. 4 is an embodiment of the present invention.
Embodiment
A kind of magnetic leakage free magnetic latching relay, as shown in Figure 1, comprise shell 1 and the upper interior yoke 2 of being located at shell 1 inside, yoke 3 and upper outside yoke 4 in lower, lower outside yoke 5, holder 6, lower retainer 7 is positioned at upper outside yoke 4, lower outside yoke 5 inside, yoke 2 in upper, between yoke 3, solenoid 8 and moving armature 9 and movable contact spring 10 are set in lower, between upper outside yoke 4 and upper interior yoke 2, annular permanent-magnet body 11 is set, extension rod assembly 12 is arranged at moving armature 9 lower ends, extension rod assembly 12 lower ends connect contact 13, shell 1 top arranges upper cover 14, being arranged symmetrically with binding post 15 in upper cover 14 is connected with solenoid 8, shell 1 middle and lower part arranges static contact 16, shell 1 bottom arranges lower cover 17.
In specific embodiments of the invention, moving armature 9 can be in extreme position state as shown in Figure 2 or Figure 3 when solenoid 8 is not switched on, and the Fig. 2 of take illustrates the working condition of the specific embodiment of the invention as example.
When solenoid 8 passes to the different pulse current of direction, moving armature 9 produces a rectilinear motion under the magnetic force comprehensive function, be adsorbed to extreme position as shown in Figure 3, thereby drive movable contact spring 10 and 12 motions of extension rod assembly, the contact that the rectilinear motion of extension rod assembly 12 causes contact 13 and static contact 16 with separate, thereby reach the purpose of controlling the external circuit break-make.When solenoid 8 no power, relay keeps limiting condition locking as shown in Figure 2 or Figure 3.
Successfully developed two magnetic leakage free magnetic latching relays according to such scheme of the present invention, external diameter φ 51mm, height 64.5mm, and successfully test.
The content that above-described embodiment is illustrated should be understood to these embodiment only for being illustrated more clearly in the present invention, and be not used in, limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Claims (8)
1. a magnetic leakage free magnetic latching relay, comprise shell (1), it is characterized in that, be provided with interior yoke (2), lower interior yoke (3), upper outside yoke (4), lower outside yoke (5), moving armature (9), movable contact spring (10) in described shell (1) and be sleeved on the solenoid (8) on moving armature (9); Described upper outside yoke (4) and lower outside yoke (5) form the cavity that holds described interior yoke (2) and lower interior yoke (3); Described interior yoke (2) and lower interior yoke (3) form the cavity that holds described solenoid (8), moving armature (9) main body and movable contact spring (10); The lower end of described moving armature (9) is connected with an extension rod assembly (12), and the lower end of this extension rod assembly (12) connects contact (13); Described upper outside yoke (4) is connected by a permanent magnet (11) with upper interior yoke (2); Described solenoid (8) is electrically connected to binding post (5); Described shell (1) is provided with static contact (16) in middle and lower part; Described moving armature (9) and movable contact spring (10) can move at the vertical direction reciprocating linear, form magnetic circuit with described upper outside yoke (4) and lower interior yoke (3) when this moving armature (9) moves to the limes superiors position with movable contact spring (10) and be connected, form magnetic circuit with described interior yoke (2) and lower outside yoke (5) when this moving armature (9) moves to the limit inferior position with movable contact spring (10) and be connected; Described contact (13) is connected with described static contact (16) when moving armature (9) moves to the limit inferior position with movable contact spring (10).
2. magnetic leakage free magnetic latching relay according to claim 1, is characterized in that, is provided with the holder (6) of fixing described binding post (5) between described upper outside yoke (4) and upper interior yoke (2).
3. magnetic leakage free magnetic latching relay according to claim 1, is characterized in that, between described lower outside yoke (5) and lower interior yoke (3), is provided with lower retainer (7).
4. magnetic leakage free magnetic latching relay according to claim 1, is characterized in that, described upper outside yoke (4) is arranged and close contact with lower outside yoke (5) concentric.
5. magnetic leakage free magnetic latching relay according to claim 1, is characterized in that, described interior yoke (2) is arranged and close contact with lower interior yoke (3) concentric.
6. magnetic leakage free magnetic latching relay according to claim 1, is characterized in that, described shell (1) integral body is tubular.
7. magnetic leakage free magnetic latching relay according to claim 1, is characterized in that, described permanent magnet (11) is annular magnet.
8. according to the described magnetic leakage free magnetic latching relay of one of claim 1 ~ 7, it is characterized in that, described shell (1) upper end is provided with upper cover (14), and this shell (1) lower end is provided with lower cover (17); Described binding post (5) is fixed on this upper cover (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104433159A CN103474296A (en) | 2013-09-26 | 2013-09-26 | Magnetic latching relay free of magnetism leakage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104433159A CN103474296A (en) | 2013-09-26 | 2013-09-26 | Magnetic latching relay free of magnetism leakage |
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| CN103474296A true CN103474296A (en) | 2013-12-25 |
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| CN2013104433159A Pending CN103474296A (en) | 2013-09-26 | 2013-09-26 | Magnetic latching relay free of magnetism leakage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550659A (en) * | 2020-04-26 | 2021-10-26 | 贵州振华群英电器有限公司（国营第八九一厂） | Electromagnetic locking device with permanent magnet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004119146A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Works Ltd | Electromagnetic relay |
| CN103295843A (en) * | 2013-05-23 | 2013-09-11 | 哈尔滨工业大学 | Permanent-magnet double-C-shaped yoke structure |
| CN203466139U (en) * | 2013-09-26 | 2014-03-05 | 湖南航天机电设备与特种材料研究所 | Magnetic latching relay free of magnetism leakage |
-
2013
- 2013-09-26 CN CN2013104433159A patent/CN103474296A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004119146A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Works Ltd | Electromagnetic relay |
| CN103295843A (en) * | 2013-05-23 | 2013-09-11 | 哈尔滨工业大学 | Permanent-magnet double-C-shaped yoke structure |
| CN203466139U (en) * | 2013-09-26 | 2014-03-05 | 湖南航天机电设备与特种材料研究所 | Magnetic latching relay free of magnetism leakage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550659A (en) * | 2020-04-26 | 2021-10-26 | 贵州振华群英电器有限公司（国营第八九一厂） | Electromagnetic locking device with permanent magnet |
| CN113550659B (en) * | 2020-04-26 | 2022-12-06 | 贵州振华群英电器有限公司（国营第八九一厂） | Electromagnetic locking device with permanent magnet |
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Application publication date: 20131225 |