CN106409611A - Relay having an integrated structure with U-shaped iron core and yoke and assembling method thereof - Google Patents
Relay having an integrated structure with U-shaped iron core and yoke and assembling method thereof Download PDFInfo
- Publication number
- CN106409611A CN106409611A CN201611038794.6A CN201611038794A CN106409611A CN 106409611 A CN106409611 A CN 106409611A CN 201611038794 A CN201611038794 A CN 201611038794A CN 106409611 A CN106409611 A CN 106409611A
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- Prior art keywords
- iron core
- shaped iron
- yoke
- armature
- relay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/047—Details concerning mounting a relays
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a relay having an integrated structure with a U-shaped iron core and a yoke. The relay comprises a mounting pedestal, a housing covering the mounting pedestal, and a coil rack installed on the mounting pedestal. A U-shaped iron core, an armature and a yoke are arranged at the mounting pedestal; and the yoke and the U-shaped iron core are in an integrated die-cast formation mode. One end of the U-shaped iron core is inserted into a bottom surface of the mounting pedestal and penetrates the coil rack; and one part of one end of the U-shaped iron core extends to the outer surface of the top of the coil rack. One end of the armature is connected with the U-shaped iron core extending to the outer surface of the top of the coil rack. One end, with the yoke, of the U-shaped iron core and the other end of the armature form a magnetic pole face. The traditional riveting way is replaced by the integrated structure of the U-shaped iron core and the yoke, so that no matching slit between the U-shaped iron core and the yoke exists. When the relay works, the magnetic conductivity can reach a highest level. Moreover, the transmission function can be realized without connection by other parts, so that the manufacturing difficulty is reduced substantially.
Description
Technical field
The present invention relates to a kind of parts of relay, especially a kind of U-shaped iron core and yoke integrative-structure.
Background technology
When traditional relay produces, iron core and yoke are fixed together by the way of riveting and carry out being driven work,
But both not only have the drop problem leading to because of process variations in riveting process, also riveting gap and the asking of bad order
Topic, in addition because the complexity of technique leads to cost of labor also higher.
At present, in traditional relay design, iron core and armature assembling typically have two ways：One kind be by iron core and
The riveting of yoke, then yoke and armature are connected by extension spring；Another kind is by a piece of stage clip, connects yoke and armature.This two
Kind of mode has been required for passing and has connect mode several parts are connected, and complex process meanwhile, also has following problem：1st, existing
Relay adopt armature+yoke+barred core magnetic structure, the magnetic density on the iron core major part position of this magnetic structure
Far smaller than 1T, so can lead to product adhesive difficult, use and all have a certain impact for follow-up production and processing, client；
2nd, there is the mode down inserted from bobbin upper end in existing iron core and armature assembling, due to iron core end from bobbin down
Insert, and the yoke being located on iron core is then placed in above bobbin, and be provided without any spacing measure, operationally, its armature leads to
It is pull-in on yoke in the presence of crossing electromagnetism, and when quitting work, its armature can carry out restoring playback by back-moving spring, so
In the presence of long-time, its spring occurs that elastic fatigue leads to flexibility decrease, and then reduces iron core and two, armature
Stability between part, operationally during also easily occur loosening, thus positioning effect on bobbin for the iron core can be reduced
Really；3rd, iron core connected structure from top to bottom, it is located at the yoke of iron core one end and forms magnetic pole strength with armature, and its armature one end needs
Iron core is fixed, so that its other end is contacted with its yoke, but, the setting of such structure, in work
Make in state, to make armature and yoke contact surface between the two unstable, meanwhile, contact surface area between the two is also less,
Thus result in the magnetic conduction effect on driving birds is not good produced by magnetic pole strength being formed between yoke and armature, its stability is also poor, therefore
It is necessary to improve.
Content of the invention
The technical problem to be solved is to provide a kind of U-shaped iron core and yoke integrative-structure, and it need not pass through it
His part is attached just to reach transfer function, thus reducing manufacture difficulty.
In order to solve the above problems, the relay of a kind of U-shaped iron core provided by the present invention and yoke integrative-structure, including
Mounting seat, covers the housing that is connected in mounting seat and is arranged on bobbin in mounting seat, described mounting seat is provided with U-shaped
Iron core, armature and yoke, described yoke and U-shaped iron core integrated die-casting shaping, described U-shaped iron core one end is inserted from mounting seat bottom surface
Enter and thorough coil frame, this U-shaped iron core one end described has part to extend in bobbin top outer surface, described armature one end and institute
State and extend in the U-shaped iron core of bobbin top outer surface and be connected, the described U-shaped iron core with yoke one end and armature other end shape
Become a magnetic pole strength.
In order that U-shaped iron core can be attached with yoke in the case of not having miscellaneous part, described armature and U-shaped iron core
Between connection can be clamp.
In order that U-shaped iron core can be attached with yoke in the case of not having miscellaneous part, described armature and U-shaped iron core
Between connection can be snapping, the described U-shaped iron core positioned at bobbin top outer surface offers edge of a knife groove, described armature one end
One draw-in groove is respectively offered on two sides, the spacing between described two draw-in grooves is identical with the length in edge of a knife groove, described draw-in groove
Interior length is identical with the width in edge of a knife groove, and described armature snaps onto U-shaped iron core by the cooperation between draw-in groove and edge of a knife groove
On.
In order that U-shaped iron core can be attached with yoke in the case of not having miscellaneous part, described armature and U-shaped iron core
Between connection can be grafting, described positioned at the U-shaped iron core of bobbin top outer surface be bent outwardly and perpendicular shape, described should
The U-shaped iron core at end is provided with draw-in groove, and described armature one end offers edge of a knife groove, and described armature is plugged on U-shaped iron by edge of a knife groove
In the draw-in groove of core.
Spacing in order to be able to carry out to the both direction up and down of armature, described inner walls are convexly equipped with spacing block set, this limit
Position projection is located at armature and U-shaped iron core connection end between the two and the both direction up and down of this armature is carried out spacing.
Spacing in order to be able to carry out to the four direction all around of armature, described mounting seat bottom offers and U-shaped iron
The iron core locating slot that core matches, described mounting seat is fixed on the positioning to U-shaped iron core by iron core locating slot, and then to upper
State armature four direction all around carry out spacing.
For convenience the push card in relay is fixed, described armature is L-shaped and in that relative with yoke
The middle of one end both sides is provided with each two symmetrical locating convex blocks.
In order to be able to make, U-shaped iron core and yoke are convenient to be connected, and two diagonal angles of the edge of a knife groove on described U-shaped iron core respectively open up
There is a technology groove.
In order to be able to make, U-shaped iron core and yoke are convenient to be connected, and two diagonal angles of the draw-in groove on described armature both sides respectively open up
There is a technology groove.
A kind of assembly method of the relay of U-shaped iron core and yoke integrative-structure, its step comprises the steps：
1. the installation of bobbin, bobbin is fixed in mounting seat；
The installation of 2.U shaped iron core, U-shaped iron core is inserted from the bottom of mounting seat without one end of yoke, subsequently runs through
Bobbin and partly U-shaped iron core extend in bobbin top outer surface, and U-shaped iron core one end with yoke is from the bottom of mounting seat
Portion inserts, and subsequently passes from bobbin side；
3. the installation of armature, armature one end is connected to U-shaped iron core one end without yoke by way of clamp, its rank
The other end of iron and U-shaped iron core one end with yoke forms magnetic pole strength；
4. the installation of housing, case lid is connected in mounting seat, the spacing block set on its housing be arranged on armature with U-shaped
Iron core junction between the two simultaneously carries out spacing to this armature.
Compared with prior art, it is an advantage of the current invention that 1, U-shaped iron core and yoke are come generation by the way of integrative-structure
For riveting method in tradition, U-shaped iron core and two parts of yoke are so made to there is not cooperation gap problem；2nd, U-shaped iron core and yoke
Iron so as to need not be attached just reaching transfer function by miscellaneous part, is greatly reduced by the way of integrative-structure
Manufacture difficulty, meanwhile, when relay works, to be replaced existing using the magnetic structure of U-shaped iron core and yoke integrative-structure
The magnetic structure of armature+yoke+barred core, is so conducive to the adhesive between armature and iron core, improves magnetic induction strong
Degree and permeability；3rd, the upper end of described edge of a knife groove is oblique section, this avoid the generation of burr, improves armature and yoke
Contact effect, improve the adhesive performance of product；4th, the setting of described technology groove can reduce the generation of burr, improves rank
The assembly performance of iron；5th, by the way of clamp, the four direction all around of armature is limited between U-shaped iron core and armature
Position, inner walls are convex to set spacing block set, so when significantly shaking occurs in relay, can be to two sides up and down of armature
Spacing to carrying out, by armature up and down before and after 6 directions spacing, greatly improve relay entirety positioning effect
Really；7th, pass through to insert and thorough coil frame U-shaped iron core from mounting seat bottom surface, meanwhile, U-shaped iron core one end has part to extend in
Bobbin top outer surface, above-mentioned in U-shaped iron core and armature between there is certain gradient, so operationally, due to
Armature is directly connected to U-shaped iron core, and its armature can directly be pull-in on the yoke on U-shaped iron core, meanwhile, its U-shaped iron core from
Mounting seat bottom surface is inserted, and so makes U-shaped iron core and yoke carry out positioning setting in mounting seat, and then by armature
Motion makes it be pull-in on yoke, and it is connected with armature one end of U-shaped iron core, and U-shaped iron core is in parallel shape with armature, quits work
When, due to having certain gradient, homing under force between U-shaped iron core and armature, which enhance iron core
Stability and fastness and two parts of armature between, meanwhile, also strengthen the magnetic being formed between the yoke on iron core and armature
Magnetic conduction effect produced by pole-face.
Brief description
Fig. 1 is the transparent schematic diagram of overall structure of the present invention；
Fig. 2 is plugged with the internal structure schematic diagram of U-shaped core structure for the present invention；
Fig. 3 is the mounting seat structural representation of the present invention；
Fig. 4 is the U-shaped core structure schematic diagram of the present invention；
Fig. 5 is the armature structure schematic diagram of the present invention；
Fig. 6 is the connected structure schematic diagram with armature for the U-shaped iron core of the present invention；
Fig. 7 is the attracting state figure with armature for the U-shaped iron core of the present invention.
In figure：Mounting seat 1, housing 2, bobbin 3, U-shaped iron core 4, yoke 5, armature 6, edge of a knife groove 7, draw-in groove 8, spacing
Projection 9, iron core locating slot 10, locating convex block 11, technology groove 12.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is used for the present invention is described, but is not limited to the scope of the present invention.
Embodiment 1
As shown in Fig. 1-Fig. 7, a kind of U-shaped iron core and the relay of yoke integrative-structure that the present embodiment is provided, including
Mounting seat 1, covers the housing 2 that is connected in mounting seat 1 and is arranged on bobbin 3 in mounting seat 1, described mounting seat 1
It is provided with U-shaped iron core 4, armature 6 and yoke 5, described yoke 5 and U-shaped iron core 4 integrated die-casting shaping, described U-shaped iron core one end is from peace
The insertion of dress base 1 bottom surface and thorough coil frame 3, this U-shaped iron core 4 one end described has part to extend in bobbin 3 top outer surface,
Described armature 6 one end is connected with the described U-shaped iron core 4 extending in bobbin 3 top outer surface, the described U with yoke 5 one end
Shaped iron core 4 forms a magnetic pole strength with armature 6 other end, and the connection between described armature 6 and U-shaped iron core 4 can be clamp, described
Edge of a knife groove 7 is offered on the U-shaped iron core 4 of bobbin 3 top outer surface, described armature 6 one end two side respectively offers one
Individual draw-in groove 8, the spacing between described two draw-in grooves 8 is identical with the length in edge of a knife groove 7, the length in described draw-in groove 8 and the edge of a knife
Width in groove 7 is identical, and described armature 6 snaps onto on U-shaped iron core by the cooperation between draw-in groove 8 and edge of a knife groove 7, described housing
Spacing block set 9 is convexly equipped with 2 inwalls, this spacing block set 9 is located at armature 6 and U-shaped iron core 4 connection end between the two and to this rank
The both direction up and down of iron 6 carries out spacing, and described mounting seat 1 bottom offers the iron core locating slot matching with U-shaped iron core 4
10, described mounting seat 1 is fixed on the positioning to U-shaped iron core 4 by iron core locating slot 10, so to above-mentioned armature 6 before and after
Left and right four direction carries out spacing, and described armature 6 is L-shaped and is provided with the middle of that one end both sides relative with yoke 5
Each two symmetrical locating convex blocks 11, two diagonal angles of the edge of a knife groove 7 on described U-shaped iron core 4 respectively offer a technology groove 12,
Two diagonal angles of the draw-in groove 8 on described armature 6 both sides respectively offer a technology groove 12.
In the present embodiment, U-shaped iron core 4 and yoke 5 to replace the riveting side in tradition by the way of using integrative-structure
Formula, so makes U-shaped iron core 4 there is not cooperation gap problem with 5 two parts of yoke, when relay works, magnetic conduction ability
Highest can be reached, meanwhile, be attached just to reach transfer function without by miscellaneous part, greatly reduce manufacture difficult
Degree, meanwhile, when relay works, to replace existing armature+yoke using the magnetic structure of U-shaped iron core and yoke integrative-structure
The magnetic structure of iron+barred core, is so conducive to the adhesive between armature and iron core, improves magnetic induction intensity and magnetic conduction
Rate, the upper end of described edge of a knife groove 7 is oblique section, this avoid the generation of burr, improves the contact of armature 6 and yoke 5
Effect, improves the adhesive performance of product；The setting of described technology groove 12 can reduce the generation of burr, improves armature 6
Assembly performance；The four direction all around of armature 6 is carried out spacing between U-shaped iron core 4 and armature 6 by the way of clamp,
Housing 2 inwall is convex to set spacing block set 9, so when significantly shaking occurs in relay, can be to two sides up and down of armature 6
Spacing to carrying out, by armature 6 up and down before and after 6 directions spacing, greatly improve relay entirety positioning
Effect；During installation, U-shaped iron core 4 one end is inserted from the bottom of mounting seat 1, through bobbin 3 and outer on bobbin 3 top
Partly U-shaped iron core 4 is extended with surface, then by the locating slot in mounting seat 1, U-shaped iron core 4 is fixed on the positioning, armature
The edge of a knife groove 7 that 6 end face then passes through on draw-in groove 8 and U-shaped iron core 4 one end carries out snapping, armature 6 other end with yoke 5
The U-shaped iron core 4 of one end then forms a magnetic pole strength between the two, on the one hand, U-shaped iron core 4 can be to all around the four of armature 6
Individual direction is spacing, on the other hand, is convexly equipped with spacing block set 9 on housing 2 inwall, and this spacing block set 9 is located at armature and U-shaped iron core
4 connection ends between the two, so can carry out spacing, thus reaching to armature six to the both direction up and down of armature 6
Position is fixed；The interlude of that one end armature 6 both sides relative with yoke 5 is convexly equipped with locating convex block 11, so can be right
Parts push card in relay is fixed installation；Edge of a knife groove 7 in U-shaped iron core first end face 6 and armature first end
The both sides in draw-in groove 8 on face 8 diagonally all offer technology groove 12, facilitate installation and the dismounting of armature.
Embodiment 2
As shown in fig. 6, the present embodiment 2 is compared with Example 1, its distinguishing feature is, described positioned at bobbin 3 top
The U-shaped iron core of outer surface 4 is to be bent outwardly and perpendicular shape, and the U-shaped iron core 4 at this end described is provided with draw-in groove 8, described armature 6 one
End offers edge of a knife groove 7, and described armature 6 is plugged in the draw-in groove 8 of U-shaped iron core 8 by edge of a knife groove 7, so facilitates the peace of armature 6
Dress and dismounting, are easy to the operation of personnel.
A kind of U-shaped iron core and the relay of yoke integrative-structure that the present embodiment is provided, between its U-shaped iron core and armature
Working method be, by by U-shaped iron core from mounting seat bottom surface insert and thorough coil frame, meanwhile, there is portion U-shaped iron core one end
Point extend in bobbin top outer surface, above-mentioned in U-shaped iron core and armature between there is certain gradient, so in work
When, because armature is directly connected to U-shaped iron core, its armature can directly be pull-in on the yoke on U-shaped iron core, and meanwhile, it is U-shaped
Iron core inserts from mounting seat bottom surface, so makes U-shaped iron core and yoke carry out positioning setting in mounting seat, and then passes through
The motion of armature makes it be pull-in on yoke, and it is connected with armature one end of U-shaped iron core, and U-shaped iron core is in parallel shape with armature, stops
When only working, due to having certain gradient, homing under force between U-shaped iron core and armature, so improve
Stability and fastness between iron core and two parts of armature, meanwhile, also strengthen shape between the yoke on iron core and armature
The magnetic conduction effect produced by magnetic pole strength becoming.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, on the premise of without departing from the technology of the present invention principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (11)
1. the relay of a kind of U-shaped iron core and yoke integrative-structure, including mounting seat (1), lid is connected in mounting seat (1)
Housing (2) and the bobbin (3) that is arranged in mounting seat (1) are it is characterised in that described mounting seat (1) is provided with U-shaped iron
Core (4), armature (6) and yoke (5), described yoke (5) and the shaping of U-shaped iron core (4) integrated die-casting, described U-shaped iron core one end from
The insertion of mounting seat (1) bottom surface and thorough coil frame (3), this U-shaped iron core (4) one end described has part to extend in bobbin (3)
Top outer surface, described armature (6) one end is connected with the described U-shaped iron core (4) extending in bobbin (3) top outer surface, institute
State the U-shaped iron core (4) with yoke (5) one end and form a magnetic pole strength with armature (6) other end.
2. the relay of a kind of U-shaped iron core according to claim 1 and yoke integrative-structure is it is characterised in that described rank
Connection between iron (6) and U-shaped iron core (4) is clamp.
3. the relay of a kind of U-shaped iron core according to claim 2 and yoke integrative-structure is it is characterised in that institute's rheme
Edge of a knife groove (7) is offered on the U-shaped iron core (4) of bobbin (3) top outer surface, described armature (6) one end two side is respectively opened
It is provided with a draw-in groove (8), the spacing between described two draw-in grooves (8) is identical with the length in edge of a knife groove (7), described draw-in groove (8)
Interior length is identical with the width in edge of a knife groove (7), and described armature (6) passes through the cooperation button between draw-in groove (8) and edge of a knife groove (7)
It is connected on U-shaped iron core.
4. the relay of a kind of U-shaped iron core according to claim 2 and yoke integrative-structure is it is characterised in that institute's rheme
It is to be bent outwardly and perpendicular shape in the U-shaped iron core (4) of bobbin (3) top outer surface, the U-shaped iron core (4) at this end described sets
There is draw-in groove (8), described armature (6) one end offers edge of a knife groove (7), and described armature (6) is plugged on U-shaped iron by edge of a knife groove (7)
In the draw-in groove (8) of core (8).
5. the relay of a kind of U-shaped iron core according to claim 1-5 and yoke integrative-structure is it is characterised in that described
Spacing block set (9) is convexly equipped with housing (2) inwall, this spacing block set (9) is located at armature (6) and U-shaped iron core (4) between the two
Connection end the both direction up and down to this armature (6) carry out spacing.
6. the relay of a kind of U-shaped iron core according to claim 1 and yoke integrative-structure is it is characterised in that described peace
Dress base (1) bottom offers the iron core locating slot (10) matching with U-shaped iron core (4), and described mounting seat (1) passes through iron core
Locating slot (10) is fixed on the positioning to U-shaped iron core (4), and then the four direction all around of described armature (6) is limited
Position.
7. the relay of a kind of U-shaped iron core according to claim 1 and yoke integrative-structure is it is characterised in that described rank
Iron (6) is L-shaped and is provided with each two symmetrical locating convex blocks (11) in the middle of that one end both sides relative with yoke (5).
8. the relay of a kind of U-shaped iron core according to claim 3 and yoke integrative-structure is it is characterised in that described U-shaped
Two diagonal angles of the edge of a knife groove (7) on iron core (4) respectively offer a technology groove (12).
9. the relay of a kind of U-shaped iron core according to claim 2 and yoke integrative-structure is it is characterised in that described rank
Two diagonal angles of the draw-in groove (8) on iron (6) both sides respectively offer a technology groove (12).
10. the relay of a kind of U-shaped iron core according to claim 3 and yoke integrative-structure is it is characterised in that described knife
The upper end of mouth groove (7) is oblique section, is technology groove (12) positioned at the lower section of described oblique section.
The assembly method of the relay of a kind of 11. U-shaped iron cores and yoke integrative-structure, it comprises the steps：
1. the installation of bobbin (3), bobbin (3) is fixed in mounting seat (1)；
The installation of 2.U shaped iron core (4), U-shaped iron core (4) is inserted from the bottom of mounting seat (1) without one end of yoke (5),
Subsequent thorough coil frame (3) and partly U-shaped iron core (4) extend in bobbin (3) top outer surface, and U-shaped iron core (4) band yoke
(5) one end is inserted from the bottom of mounting seat (1), subsequently passes from bobbin (3) side；
3. the installation of armature (6), armature (6) one end is connected to U-shaped iron core (4) without yoke (5) by way of clamp
One end, the other end of its armature (6) and U-shaped iron core (4) one end with yoke (5) forms magnetic pole strength；
4. the installation of housing (2), housing (2) lid is connected in mounting seat (1), spacing block set (9) setting on its housing (2)
In armature (6) and U-shaped iron core (4) junction between the two and this armature (6) is carried out spacing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434726.9A CN110085483A (en) | 2016-11-21 | 2016-11-21 | A kind of relay of U-shaped iron core and yoke integral structure |
| CN201611038794.6A CN106409611A (en) | 2016-11-21 | 2016-11-21 | Relay having an integrated structure with U-shaped iron core and yoke and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611038794.6A CN106409611A (en) | 2016-11-21 | 2016-11-21 | Relay having an integrated structure with U-shaped iron core and yoke and assembling method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910434726.9A Division CN110085483A (en) | 2016-11-21 | 2016-11-21 | A kind of relay of U-shaped iron core and yoke integral structure |
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| CN106409611A true CN106409611A (en) | 2017-02-15 |
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| CN201910434726.9A Pending CN110085483A (en) | 2016-11-21 | 2016-11-21 | A kind of relay of U-shaped iron core and yoke integral structure |
| CN201611038794.6A Pending CN106409611A (en) | 2016-11-21 | 2016-11-21 | Relay having an integrated structure with U-shaped iron core and yoke and assembling method thereof |
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| CN110085484A (en) * | 2019-04-30 | 2019-08-02 | 厦门宏发电声股份有限公司 | A kind of electromagnetic relay of low clearance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970266A (en) * | 2018-09-30 | 2020-04-07 | 泰科电子(深圳)有限公司 | Electromagnetic relay |
| US11373829B2 (en) | 2018-09-30 | 2022-06-28 | Tyco Electronics (Shenzhen) Co. Ltd. | Electromagnetic relay |
| CN110085484A (en) * | 2019-04-30 | 2019-08-02 | 厦门宏发电声股份有限公司 | A kind of electromagnetic relay of low clearance |
| CN110085484B (en) * | 2019-04-30 | 2023-12-15 | 厦门宏发电声股份有限公司 | Electromagnetic relay with low height |
| CN113963993A (en) * | 2020-07-21 | 2022-01-21 | 海信（山东）冰箱有限公司 | Mute electromagnetic relay and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110085483A (en) | 2019-08-02 |
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Application publication date: 20170215 |