CN102074418A - Electromagnetic relay - Google Patents
Electromagnetic relay Download PDFInfo
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- CN102074418A CN102074418A CN2010105595231A CN201010559523A CN102074418A CN 102074418 A CN102074418 A CN 102074418A CN 2010105595231 A CN2010105595231 A CN 2010105595231A CN 201010559523 A CN201010559523 A CN 201010559523A CN 102074418 A CN102074418 A CN 102074418A
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- standing portion
- yoke
- attracted
- iron core
- electromagnetic relay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/27—Relays with armature having two stable magnetic states and operated by change from one state to the other
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- 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
- H01H50/24—Parts rotatable or rockable outside coil
- H01H50/26—Parts movable about a knife edge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/42—Auxiliary magnetic circuits, e.g. for maintaining armature in, or returning armature to, position of rest, for damping or accelerating movement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/643—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
- H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
Abstract
An electromagnetic relay 10 includes an auxiliary yoke 17 extending along an upstanding portion 27 of a primary yoke 14 and magnetically connected to the upstanding portion 27 through a magnetic connection portion 41, a permanent magnet 18 arranged between the upstanding portion 27 of the primary yoke 14 and the auxiliary yoke 17 and a magnetic saturation portion 21 provided in the upstanding portion 27. The electromagnetic relay 10 is designed to allow the magnetic flux of the permanent magnet 18 to flow through the upstanding portion 27, an operation piece 15, the magnetic connection portion 41 and the auxiliary yoke 17 when a second attracted portion 32 is spaced apart from one end portion of an iron core 12 with the conductive coil 24 kept not excited, and to flow through the upstanding portion 27, the operation piece 15, the iron core 12, a base end portion 26, the magnetic connection portion 41 and the auxiliary yoke 17 when the second attracted portion 32 is attracted to the end portion of the iron core 12 with the conductive coil 24 kept not excited.
Description
Technical field
The present invention relates to a kind of electromagnetic relay, it comprises iron core, be arranged in bobbin around the iron core, be wrapped in conductive coil, operating parts and contact structure on the bobbin.When conductive coil was passed through in the electric current supply, operating parts was attracted to the end of iron core.In company with this motion of operating parts together, the contact of contact mechanism is connected to each other with the state that electric current flows.
Background technology
Conventional relay pack rubbing board shape base portion, be located at iron core on the base portion, be arranged in bobbin around the iron core, be wrapped in conductive coil on the bobbin, be connected to the yoke of an end of iron core and be supported in operating parts on the yoke swingably.When operating parts is swung, the contact of contact mechanism can contact with each other or away from.
Have this electromagnetic relay, when electric current flow through the conductive coil that is wrapped on the bobbin, operating parts was attracted to the end of iron core.In company with this motion of operating parts together, the state that flows with electric current in the contact of contact mechanism be connected to each other (referring to for example Japanese Patent Application Publication No.2009-009710 (JP2009-009710A)).
In JP2009-009710A, in the disclosed electromagnetic relay, need encourage conductive coil to be connected to each other constantly with the contact of holding contact mechanism.
Because this design feature, disclosed electromagnetic relay exists the difficulty that cuts down the consumption of energy among the JP2009-009710A.Thereby, exist the needs that improve this electromagnetic relay always.
Summary of the invention
Consider above situation, the invention provides a kind of electromagnetic relay that can cut down the consumption of energy.
According to an aspect of the present invention, provide a kind of electromagnetic relay, it comprises: iron core; Be arranged in around the iron core and be wound with the bobbin of conductive coil; Main yoke, it comprises end being connected to iron core and in upwardly extending base portion end, the footpath of bobbin and the standing portion that is connected to the base portion end and arranges abreast with iron core; Operating parts, it comprise along standing portion extend first be attracted part and can towards or second be attracted part away from what moved the other end of iron core, first is attracted part and second is attracted part and is connected to each other with shape roughly, and operating parts is arranged as around the end of standing portion and swings; The contact mechanism that drives by the operation of operating parts; Secondary yoke, its standing portion along main yoke is extended and magnetically is connected to standing portion by the magnetic coupling part; Be arranged in the standing portion of main yoke and the permanent magnet between the secondary yoke; And magnetic saturation part, its be located at standing portion or secondary yoke be arranged in first of operating parts be attracted the part near and the corresponding part of permanent magnet and magnetic coupling part between, wherein the electromagnetic relay magnetic flux that is designed to allow permanent magnet is attracted part second spaced apart and conductive coil remains and flows through standing portion when unexcited with the other end of iron core, operating parts, magnetic coupling part and secondary yoke, and be attracted part second and be attracted to the other end of iron core and conductive coil and remain and flow through standing portion when unexcited, operating parts, iron core, the base portion end, magnetic coupling part and secondary yoke.
With regard to this point, secondary yoke can be arranged in standing portion near or away from a side place of conductive coil.Secondary yoke can magnetically be connected to standing portion.For example, can adopt wherein secondary yoke to be arranged as closely to contact and stay the structure of minimum clearance betwixt with standing portion.One independent element can be inserted between secondary yoke and the standing portion, as long as the magnetic flux of expectation can flow through wherein.So secondary yoke can form integratedly or dividually with standing portion.
The example of magnetic saturation part comprise form reduce standing portion or secondary yoke and be located at standing portion or secondary yoke in non magnetic element or through hole, sunk part or the slit of the cross-sectional area of the particular section of insulation component.
Have this structure,, be arranged in permanent magnet between standing portion and the secondary yoke and also can keep second to be attracted part spaced apart or be attracted to the other end of iron core with the other end of iron core even conductive coil is unexcited.
In other words, only at time interim consumed power from the initial moment of the operation of operating parts to its EO moment.Therefore, with conventional electromagnetic relay mutually specific energy reduce energy consumption.
In addition and since electromagnetic relay of the present invention and conventional electromagnetic relay mutually specific energy reduce required electric energy, just can adopt undersized coil and reduce the overall dimension of electromagnetic relay.
Side place identical with conductive coil and magnetic saturation part that secondary yoke can be arranged in standing portion can be located in the standing portion.
Have this structure, the situation that is arranged in a side place opposite with conductive coil of standing portion with secondary yoke is wherein compared, and can enlarge first and be attracted part.The structure of this feasible part that can simplify the operation.
Main yoke and secondary yoke can form single part.
Have this structure, need not to make individually secondary yoke.This helps to prevent that manufacturing process from complicating reduces number of parts simultaneously.
Magnetic saturation part can be by reducing standing portion the cross-sectional area of particular section form.
In the present invention, magnetic saturation partly comprises for example through hole, sunk part or slit.Therefore, the situation that is provided as the magnetic saturation part with wherein non magnetic element or insulation component is compared, and can obtain the magnetic saturation part in simple and reliable mode.
The magnetic saturation part can comprise the through hole that is formed in the standing portion.
Have this structure, can obtain the magnetic saturation of expectation by position, the shape and size of suitably selecting through hole.
In the opposed surface of standing portion and secondary yoke at least one can comprise and be used to the step part that keeps permanent magnet in place.
With regard to this point, the example of step part comprises sunk part or the raised portion that the end face of permanent magnet can engage.Need not step part engages with all end faces of permanent magnet.Step part can be arranged in any optional position, as long as it can be held in place permanent magnet.
Have this structure, permanent magnet is held in place by step part.This has reduced permanent magnet owing to vibration or other reason move away the possibility of its position, and this makes the initial performance that can keep permanent magnet for a long time.
Step part can comprise be formed at the sunk part in one of standing portion and secondary yoke or be formed at standing portion and one of secondary yoke in raised portion.
The advantageous effect that electromagnetic relay of the present invention provides is that can consume energy when being attracted the other end that partly is attracted to iron core reduces by permanent magnet being arranged between standing portion and the secondary yoke.
In addition, compare with conventional electromagnetic relay, electromagnetic relay of the present invention can reduce required electric energy.The overall dimension that this advantageous effect that provides is to adopt undersized coil and reduces electromagnetic relay.
Description of drawings
Fig. 1 is the perspective view that illustrates according to the electromagnetic relay of first embodiment of the invention, has wherein removed cover plate from relay.
Fig. 2 is the enlarged perspective of electromagnetic relay shown in Figure 1.
Fig. 3 is the end view of electromagnetic relay shown in Figure 2.
Fig. 4 is the perspective view of electromagnetic relay shown in Figure 1, has wherein removed base portion from relay.
Fig. 5 illustrates according to the main yoke of first embodiment of the invention and the perspective view of secondary yoke.
Fig. 6 is the perspective view that main yoke shown in Figure 5 and secondary yoke are shown, and has wherein removed standing portion from yoke.
Fig. 7 illustrates a kind of perspective view that is used to produce the illustrative methods of main yoke shown in Figure 5 and secondary yoke.
Fig. 8 A to 8C illustrates the end view that wherein is located at the example from the current interruptions state exchange to the electric current flow regime according to the contact in the electromagnetic relay of first embodiment.
Fig. 9 A to 9C illustrates wherein to be located at the end view that is transformed into the example of current interruptions state according to the contact in the electromagnetic relay of first embodiment from the electric current flow regime.
Figure 10 illustrates according to the main yoke of second embodiment of the invention and the perspective view of secondary yoke.
Figure 11 is the perspective view that illustrates according to the standing portion of third embodiment of the invention.
Figure 12 is the perspective view that illustrates according to the standing portion of fourth embodiment of the invention.
Figure 13 is the perspective view that illustrates according to the standing portion of fifth embodiment of the invention.
Figure 14 is the perspective view that illustrates according to the secondary yoke of sixth embodiment of the invention.
Figure 15 A and 15B are perspective view and the cross-sectional view that illustrates according to the secondary yoke of seventh embodiment of the invention.
Figure 16 illustrates according to the main yoke of eighth embodiment of the invention and the end view of secondary yoke.
Embodiment
Now with reference to the electromagnetic relay 10 of accompanying drawing description according to the embodiment of the invention.
(first embodiment)
As shown in Figures 1 to 3, the electromagnetic relay 10 according to first embodiment of the invention comprises base portion 11, iron core 12 from base portion 11 settings, be located at iron core 12 bobbin 13 on every side, with the main yoke 14 of bobbin 13 with the spaced apart relation setting, operating parts 15 by main yoke 14 supports, contact mechanism 16 by operating parts 15 supports, with the secondary yoke 17 of main yoke 14 with relative relation layout, be arranged at the permanent magnet 18 between secondary yoke 17 and the main yoke 14, be located at the magnetic saturation part 21 in the main yoke 14, and be arranged in and be used to hold iron core 12 on the base portion 11, bobbin 13, main yoke 14, operating parts 15, contact mechanism 16, secondary yoke 17, the cover plate 22 of permanent magnet 18 and magnetic saturation part 21.
Shown in Fig. 3 to 5, iron core 12 at one end is fixed to base portion 11 and extends straight from base portion 11.That is to say that iron core 12 raises vertically from base portion 11.
Bobbin 13 is made by insulating material and is provided with so that it can cover iron core 12 coaxially with respect to iron core 12.Conductive coil 24 is wrapped on the bobbin 13.
When fixed terminal 36 and removable terminal 35 were in contact condition, contact 37 (being made of fixed terminal 36 and removable terminal 35) entered the electric current flow regime.If fixed terminal 36 and removable terminal 35 are in contactless state, contact 37 enters the current interruptions state.
Shown in Fig. 3,5 and 6, (referring to Fig. 3) extends along standing portion 27 simultaneously in the side place identical with conductive coil 24 that secondary yoke 17 is arranged in standing portion 27.Secondary yoke 17 magnetically is connected to standing portion 27 by magnetic coupling part 41.That is to say that standing portion 27 (main yoke 14) and secondary yoke 17 integrally form to each other by magnetic coupling part 41.Thereby, need not to make individually secondary yoke 17.This helps to prevent that manufacturing process from becoming complicated when reducing number of parts.
Have roughly that the step part 42 (referring to Fig. 7) of U-shaped shape is formed on the standing portion 27 facing surfaces 17a secondary yoke 17 and main yoke 14, thereby be defined for the sunk part 43 (referring to Fig. 7) that holds permanent magnet 18.Secondary yoke 17 comprises the sweep 44 that is located at sunk part 43 following and close magnetic coupling parts 41.Sweep 44 is bent into extension away from standing portion 27.
Because sweep 44 is formed in the secondary yoke 17, under the relative state of secondary yoke 17 and main yoke 14, the spatial accommodation 45 (referring to Fig. 3) that is used to hold permanent magnet 18 is limited by sunk part 43 and main yoke 14.Spatial accommodation 45 has upper opening 46 (Fig. 3), and permanent magnet 18 can insert spatial accommodation 45 thus.Opening 46 in the present invention not necessarily but can omit by the structure or the manufacturing process that suitably change electromagnetic relay 10.
By permanent magnet 18 being arranged in the sunk part 43 of secondary yoke 17, permanent magnet 18 can be remained in the ad-hoc location in the step part 42.This has reduced permanent magnet 18 owing to vibration or other reason move away the possibility of its position, and this makes the original performance that can keep permanent magnet 18 for a long time.
Because the position deviation of permanent magnet 18 can prevent to obtain step part 42 by form sunk part 43 in secondary yoke 17, just can suppress attraction (magnetic force) value of departing from objectives and obtain the stable character of operation.
The method that is used to form secondary yoke 17, main yoke 14 and magnetic coupling part 41 is described in the back with reference to Fig. 7.
Shown in Fig. 3 and 5, be connected to first a side place that is attracted part 31 in standing portion 27, between that magnetic saturation part 21 is located at standing portion 27 and permanent magnet 18 corresponding parts 47 and the magnetic coupling part 41.
Be the magnetic saturation part 21 of through-hole form by formation, provide as the situation of magnetic saturation part with non magnetic element or insulation component and compare, can obtain magnetic saturation part 21 in simple and reliable mode.
In addition, be the magnetic saturation part 21 of through-hole form by formation, can be by the position of suitably selecting through hole, the magnetic saturation degree that shape and size obtain expectation.
In electromagnetic relay 10, the side place identical that secondary yoke 17 is arranged in standing portion 27 with conductive coil 24, and magnetic saturation part 21 is located in the standing portion 27.Therefore, the situation at a side place opposite with current-carrying part 24 that is arranged in standing portion 27 with secondary yoke 17 is compared, and first is attracted part 31 can amplify apart from the step distance of standing portion 27 pro rata with sweep 44.Use the structure of the feasible part 15 that can simplify the operation of this structure in the electromagnetic relay 10.
As shown in Figure 1, cover plate 22 is arranged on the base portion 11 and forms roughly rectangular shape (box form) so that it can hold iron core 12, bobbin 13, main yoke 14, operating parts 15, contact mechanism 16, secondary yoke 17, permanent magnet 18 and magnetic saturation part 21.
Next, describe an example of the method that is used to form secondary yoke 17, main yoke 14 and magnetic coupling part 41 in detail with reference to Fig. 7.
As shown in Figure 7, at first planar materials (metallic plate) is stamped into given shape, thereby forms secondary yoke 17, main yoke 14 and magnetic coupling part 41.Then, on the standing portion 27 facing surfaces 17a of secondary yoke 17 and main yoke 14, step part 42 pressure are formed roughly U-shaped shape, thereby be formed for holding the sunk part 43 of permanent magnet 18.Sunk part 43 can with planar materials (metallic plate) be stamped into given shape side by side form.
Subsequently, be formed in the standing portion 27, after this in secondary yoke 17, form sweep 44 as the through hole of magnetic saturation part 21.So by secondary yoke 17 being brought into and 14 one-tenth relative relations of main yoke, the spatial accommodation 45 (referring to Fig. 3) that is used to hold permanent magnet 18 can be defined between sunk part 43 and the main yoke 14.
After this, the base portion end 26 of main yoke 14 can have roughly L shaped shape so that have when the main yoke 14 of base portion end 26 and standing portion 27 is seen towards standing portion 27 bendings with the right angle in end view.Then, permanent magnet 18 inserts spatial accommodation 45 by opening 46 (referring to Fig. 3) so that it can remain in the sunk part 43 in the spatial accommodation 45.
Then, describe with reference to Fig. 8 A to 8C and be used to keep second example that is attracted the method (just, being used for contact 37 is switched to from the current interruptions state method of electric current flow regime) that part 32 is attracted to the other end 12b of iron core 12.
Shown in Fig. 8 A, operating parts 15 with state arrangement so so that its second to be attracted part 32 spaced apart with the other end 12b of iron core 12.First of operating parts 15 is attracted part 31 and contacts with standing portion 27.
Under this state, the magnetic flux 50 of permanent magnet 18 flows through the standing portion 27 of main yoke 14, operating parts 15, magnetic coupling part 41 and secondary yoke 17.Therefore, under the effect of the magnetic flux 50 of permanent magnet 18, second of operating parts 15 is attracted part 32 and is retained as with the other end 12b of iron core 12 spaced apart.
Remain shown in Fig. 8 B when being energized at conductive coil 24, second of operating parts 15 is attracted the other end 12b that part 32 is attracted to iron core 12 as shown by arrow C.First of operating parts 15 is attracted part 31 and moves away from standing portion 27 as shown by arrow D.
Then, be used to keep second of operating parts 15 to be attracted an example of the isolated method of the other end 12b (just, being used for contact 37 is switched to from the electric current flow regime method of current interruptions state) of part 32 and iron core 12 with reference to Fig. 9 A to 9C description.
Shown in Fig. 9 A, operating parts 15 with state arrangement so so that it second is attracted the other end 12b that part 32 is attracted to iron core 12.First of operating parts 15 is attracted part 31 to be separated with standing portion 27.
Under this state, the magnetic flux 50 of permanent magnet 18 flows through base portion end 26, magnetic coupling part 41 and the secondary yoke 17 of the standing portion 27 of main yoke 14, operating parts 15, iron core 12, main yoke 14.Therefore, under the effect of the magnetic flux 50 of permanent magnet 18, second of operating parts 15 is attracted part 32 and remains the other end 12b that is attracted to iron core 12.
Remain shown in Fig. 9 B when being energized at conductive coil 24, second of operating parts 15 is attracted the other end 12b that part 32 moves away from iron core 12 as shown by arrow E.First of operating parts 15 is attracted part 31 and moves towards standing portion 27 as shown by arrow F, thereby contacts with standing portion 27.
As above described with reference to Fig. 8 A to 8C and Fig. 9 A to 9C, be arranged in permanent magnet 18 between standing portion 27 and the secondary yoke 17 and can keep second to be attracted part 32 spaced apart with the other end 12b of iron core 12, even conductive coil 24 is unexcited.Equally, permanent magnet 18 can keep second to be attracted the other end 12b that part 32 is attracted to iron core 12, even when conductive coil 24 is unexcited.
Have above-mentioned electromagnetic relay 10, conductive coil 24 only is being energized (consumed power just) from the initial moment of the operation of operating parts 15 during its EO moment.Therefore, compare, be attracted part 32 second and remain with the other end 12b of iron core 12 to be attracted when spaced apart or second and can cut down the consumption of energy when part 32 remains the other end 12b that is attracted to iron core 12 with conventional electromagnetic relay.
In addition, owing to compare electromagnetic relay 10 with conventional electromagnetic relay and can reduce required electric energy, just can adopt undersized coil and reduce the overall dimension of electromagnetic relay 10.
Then, with reference to Figure 10 to 16 second to the 8th embodiment is described.In the following description, will be with the electromagnetic relay 10 identical or similar parts of first embodiment with identical with reference to the label sign and will omit description.
(second embodiment)
With reference to Figure 10, form by independent element according to main yoke 14 and the secondary yoke 17 of second embodiment.Other structure keeps identical with first embodiment.
By form main yoke 14 and secondary yoke 17 by independent element, just can make different main yoke 14 of thickness and secondary yoke 17.This makes magnetic force to be controlled to be to have desired value.
(the 3rd embodiment)
With reference to Figure 11, standing portion 27 parts that the standing portion 60 of the 3rd embodiment is different from first embodiment are, the magnetic saturation part 21 that is located in the standing portion 27 of first embodiment is changed into magnetic saturation part 61.Other structure keeps identical with first embodiment.
The magnetic saturation part 61 of present embodiment be formed at standing portion 27 with operating parts 15 facing surfaces 62 as shown in Figure 3 on sunk part.
By in standing portion 60, forming sunk part as magnetic saturation part 61, provide as the situation of magnetic saturation part with wherein non magnetic element or insulation component and to compare, can reduce the cross-sectional area in the particular section of standing portion 60 and obtain magnetic saturation part 61 in simple and reliable mode.
In addition, be the magnetic saturation part 61 of sunk part form by formation, can be by the position of suitably selecting sunk part, the magnetic saturation that shape and size obtain expectation.
(the 4th embodiment)
With reference to Figure 12, standing portion 27 parts that the standing portion 70 of the 4th embodiment is different from first embodiment are, the magnetic saturation part 21 that is located in the standing portion 27 of first embodiment is changed into magnetic saturation part 71.Other structure keeps identical with first embodiment.
The magnetic saturation part 71 of present embodiment comprises a plurality of manholes that are formed in the standing portion 07.
By in standing portion 70, forming through hole as magnetic saturation part 71, provide as the situation of magnetic saturation part with wherein non magnetic element or insulation component and to compare, can reduce the cross-sectional area in the particular section of standing portion 70 and obtain magnetic saturation part 71 in simple and reliable mode.
In addition, be the magnetic saturation part 71 of through-hole form by formation, can be by the position of suitably selecting through hole, the magnetic saturation that shape and size obtain expectation.
(the 5th embodiment)
With reference to Figure 13, standing portion 27 parts that the standing portion 80 of the 5th embodiment is different from first embodiment are, the magnetic saturation part 21 that is located in the standing portion 27 of first embodiment is changed into magnetic saturation part 81.Other structure keeps identical with first embodiment.
The magnetic saturation part 81 of present embodiment comprises the circular blind hole on a plurality of that be formed at standing portion 80 and operating parts 15 facing surfaces 82 shown in Figure 3.
By in standing portion 80, forming blind hole as magnetic saturation part 81, provide as the situation of magnetic saturation part with wherein non magnetic element or insulation component and to compare, can reduce the cross-sectional area in the particular section of standing portion 80 and obtain magnetic saturation part 81 in simple and reliable mode.
In addition, if magnetic saturation part 71 forms the form that is blind hole, can be by the position of suitably selecting blind hole, the magnetic saturation that shape and size obtain expectation.
(the 6th embodiment)
With reference to Figure 14, secondary yoke 17 parts that the secondary yoke 90 of the 6th embodiment is different from first embodiment are, the step part 42 that is located in the secondary yoke 17 of first embodiment is changed into step part 92.Other structure keeps identical with first embodiment.
Step part 92 forms roughly shape on standing portion 27 facing surfaces 94 secondary yoke 90 and main yoke 14 shown in Figure 3.Be used to keep the sunk part 93 of permanent magnet 18 to limit by on surface 94, forming step part 93.
Because step part 92 forms roughly shape in the secondary yoke 90 of the 6th embodiment, just can insert permanent magnet 18 from a side of secondary yoke 90.This feasible inserting step that can freely design permanent magnet 18, for example, in the end step is carried out the insertion of permanent magnet 18, thus simplified manufacturing technique.
(the 7th embodiment)
With reference to Figure 15 A and 15B, secondary yoke 17 parts that the secondary yoke 100 of the 7th embodiment is different from first embodiment are, the step part 42 that is located in the secondary yoke 17 of first embodiment is changed into step part 102.Other structure keeps identical with first embodiment.
In the secondary yoke 100 of the 7th embodiment, step part 102 comprises a plurality of hemisphere pins (raised portion) that are formed on standing portion 27 facing surfaces 103 secondary yoke 100 and main yoke 14 shown in Figure 3.By form step part 102 on surface 103, step part 102 can be held in place permanent magnet 18.
Because the step part 102 of the secondary yoke 100 of the 7th embodiment comprises the hemisphere pin, compare with the situation that sunk part wherein is formed in the secondary yoke, can avoid because the reducing of the cross-sectional area of the magnetic circuit that the degree of depth of sunk part causes.
(the 8th embodiment)
With reference to Figure 16, the main yoke 14 of the 8th embodiment and secondary yoke 17 are different from standing portion 27 close bobbins 13 layouts that the first embodiment part is main yoke 14, and secondary yoke 17 is arranged near operating parts 15, and magnetic saturation part 21 is formed in the secondary yoke 17.Other structure keeps identical with first embodiment.
The 8th embodiment of this structure can provide the identical advantageous effect with aforementioned first embodiment.
For example, though in the first, the 3rd, the 4th and the 5th embodiment through hole and sunk part be depicted as the example of magnetic saturation part 21,61,71 and 81.The magnetic saturation part can form forms such as slit.
Though be formed in secondary yoke 17,90 and 100 according to the first, the 6th and the 7th embodiment step part 42,92 and 102, the invention is not restricted to this.Step part 42,92 and 102 can be formed in the standing portion 27.
The iron core 12 that adopts among first to the 8th embodiment, bobbin 13, main yoke 14, operating parts 15, contact mechanism 16, secondary yoke 17,90 and 100, permanent magnet 18, magnetic saturation part 21,61,71 and 81, conductive coil 24, standing portion 27,60,70 and 80, first be attracted part 31, second be attracted part 32, magnetic coupling part 41, step part 42,92 and 102 and the shape of sunk part 43 and structure be not limited to shown in those, but can suitably change.
Though the present invention just embodiment illustrate and describe, those skilled in the art will appreciate that not deviating from the present invention as defined by the appended claims under the scope, can make various changes and variation.
Claims (8)
1. electromagnetic relay, it comprises:
Iron core;
Arrange and be wound with the bobbin of conductive coil around iron core;
Main yoke, it comprises end being connected to iron core and in upwardly extending base portion end, the footpath of bobbin and the standing portion that is connected to the base portion end and arranges abreast with iron core;
Operating parts, it comprise along standing portion extend first be attracted part and can towards or second be attracted part away from what moved the other end of iron core, first is attracted part and second is attracted part and is connected to each other with shape roughly, and operating parts is arranged as around the end of standing portion and swings;
The contact mechanism that drives by the operation of operating parts;
Secondary yoke, its standing portion along main yoke is extended and magnetically is connected to standing portion by the magnetic coupling part;
Be arranged in the standing portion of main yoke and the permanent magnet between the secondary yoke; And
The magnetic saturation part, its be located at be attracted standing portion that part arranges or secondary yoke near first of operating parts and the corresponding part of permanent magnet and magnetic coupling part between,
Wherein electromagnetic relay is designed to: be attracted part with the other end of iron core when spaced apart when remain under the unexcited state second at conductive coil, allow the magnetic flux of permanent magnet to flow through standing portion, operating parts, magnetic coupling part and secondary yoke, and, allow the magnetic flux of permanent magnet to flow through standing portion, operating parts, iron core, base portion end, magnetic coupling part and secondary yoke when remaining under the unexcited state second at conductive coil when being attracted part and being attracted to the other end of iron core.
2. electromagnetic relay as claimed in claim 1, wherein secondary yoke are arranged in a side place identical with conductive coil of standing portion, and magnetic saturation partly is located in the standing portion.
3. as the electromagnetic relay of claim 1 or 2, wherein main yoke and secondary yoke form single part.
4. electromagnetic relay as claimed in claim 2, wherein the cross-sectional area of the magnetic saturation part particular section by reducing standing portion forms.
5. electromagnetic relay as claimed in claim 2, wherein magnetic saturation partly comprises the through hole that is formed in the standing portion.
6. as the electromagnetic relay of claim 1 or 2, wherein at least one among the apparent surface of standing portion and secondary yoke comprises and is used to the step part that keeps permanent magnet in place.
7. electromagnetic relay as claimed in claim 6, wherein step part comprises the sunk part that is formed in one of standing portion and secondary yoke.
8. electromagnetic relay as claimed in claim 6, wherein step part comprises the raised portion that is formed in one of standing portion and secondary yoke.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009267988A JP5446780B2 (en) | 2009-11-25 | 2009-11-25 | Electromagnetic relay |
| JP267988/2009 | 2009-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102074418A true CN102074418A (en) | 2011-05-25 |
| CN102074418B CN102074418B (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010559523 Active CN102074418B (en) | 2009-11-25 | 2010-11-23 | Electromagnetic relay |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2328165B1 (en) |
| JP (1) | JP5446780B2 (en) |
| CN (1) | CN102074418B (en) |
| TW (1) | TWI430316B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632888A (en) * | 2012-08-24 | 2014-03-12 | 欧姆龙株式会社 | Electromagnet device, method of assembling the same, and electromagnetic relay using the same |
| CN105244233A (en) * | 2015-10-15 | 2016-01-13 | 首瑞（天津）电气设备有限公司 | Moving contact push mechanism of magnetic latching relay |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6461484B2 (en) * | 2014-04-17 | 2019-01-30 | 富士通コンポーネント株式会社 | Electromagnetic relay |
| JP6897409B2 (en) * | 2017-08-04 | 2021-06-30 | オムロン株式会社 | Electromagnetic relay |
| CN107910168B (en) * | 2017-12-01 | 2023-08-08 | 广东电网有限责任公司电力科学研究院 | Test iron core |
| JP7068929B2 (en) * | 2018-05-31 | 2022-05-17 | 富士通コンポーネント株式会社 | Electromagnetic relay |
| CN114156122A (en) * | 2021-12-15 | 2022-03-08 | 正勤电气(沈阳)有限公司 | Separated magnetic circuit type bistable permanent magnet operating mechanism |
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| DE3311446A1 (en) * | 1982-03-30 | 1983-10-13 | Schrack Elektronik-AG, 1121 Wien | Electromagnetic relay |
| US5574416A (en) * | 1994-12-26 | 1996-11-12 | Nippondenso Co., Ltd. | Electromagnetic relay |
| EP0836212B1 (en) * | 1996-10-08 | 2004-03-24 | TYCO Electronics Austria GmbH | Bistable electromagnetic system for relay |
| JP2006196362A (en) * | 2005-01-14 | 2006-07-27 | Matsushita Electric Works Ltd | Latch type relay |
| CN201167064Y (en) * | 2007-12-04 | 2008-12-17 | 湖南电器研究所 | Inner magnetic type permanent magnet manipulator |
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| DE2148897A1 (en) * | 1971-09-30 | 1973-04-05 | Siemens Ag | SHORT-TIME SWITCH |
| JPH01113306U (en) * | 1988-01-25 | 1989-07-31 | ||
| JP2006040661A (en) * | 2004-07-26 | 2006-02-09 | Matsushita Electric Works Ltd | Latching relay |
| JP2009009710A (en) | 2007-06-26 | 2009-01-15 | Panasonic Electric Works Co Ltd | Electromagnetic relay |
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2009
- 2009-11-25 JP JP2009267988A patent/JP5446780B2/en active Active
-
2010
- 2010-11-19 EP EP10014802.2A patent/EP2328165B1/en active Active
- 2010-11-22 TW TW99140189A patent/TWI430316B/en active
- 2010-11-23 CN CN 201010559523 patent/CN102074418B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3311446A1 (en) * | 1982-03-30 | 1983-10-13 | Schrack Elektronik-AG, 1121 Wien | Electromagnetic relay |
| US5574416A (en) * | 1994-12-26 | 1996-11-12 | Nippondenso Co., Ltd. | Electromagnetic relay |
| EP0836212B1 (en) * | 1996-10-08 | 2004-03-24 | TYCO Electronics Austria GmbH | Bistable electromagnetic system for relay |
| JP2006196362A (en) * | 2005-01-14 | 2006-07-27 | Matsushita Electric Works Ltd | Latch type relay |
| CN201167064Y (en) * | 2007-12-04 | 2008-12-17 | 湖南电器研究所 | Inner magnetic type permanent magnet manipulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632888A (en) * | 2012-08-24 | 2014-03-12 | 欧姆龙株式会社 | Electromagnet device, method of assembling the same, and electromagnetic relay using the same |
| CN103632888B (en) * | 2012-08-24 | 2016-05-18 | 欧姆龙株式会社 | Calutron, its installation method and use the electromagnetic relay of this calutron |
| CN105244233A (en) * | 2015-10-15 | 2016-01-13 | 首瑞（天津）电气设备有限公司 | Moving contact push mechanism of magnetic latching relay |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5446780B2 (en) | 2014-03-19 |
| EP2328165A1 (en) | 2011-06-01 |
| CN102074418B (en) | 2013-10-23 |
| TWI430316B (en) | 2014-03-11 |
| TW201131610A (en) | 2011-09-16 |
| JP2011113754A (en) | 2011-06-09 |
| EP2328165B1 (en) | 2013-08-14 |
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