CN107068491A - A kind of magnetic latching relay of compact magnetic structure - Google Patents
A kind of magnetic latching relay of compact magnetic structure Download PDFInfo
- Publication number
- CN107068491A CN107068491A CN201710058206.3A CN201710058206A CN107068491A CN 107068491 A CN107068491 A CN 107068491A CN 201710058206 A CN201710058206 A CN 201710058206A CN 107068491 A CN107068491 A CN 107068491A
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- Prior art keywords
- magnetic
- yoke
- conductive part
- armature
- another side
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a kind of magnetic latching relay of compact magnetic structure, including magnetic circuit system；Magnetic circuit system includes coil, iron core, yoke, armature, magnet steel and magnetic conductive part, coil is made up of bobbin and the enamel-covered wire being wrapped on bobbin, iron core is inserted in the through hole of bobbin, yoke is L-type, one side of yoke is mutually fixed with the tail end of iron core, the termination of the another side of yoke is set to the edge of a knife, and armature coordinates the knife-edge part in yoke；One end of magnetic conductive part is inserted into the through hole of bobbin and is in contact with the head of iron core, and default gap is provided between the other end of magnetic conductive part and the another side of yoke, and magnet steel is fitted in the gap using interference mode；The another side of yoke is provided with magnetic shielding structure, magnetic resistance during increasing magnetic loop by this.The present invention is improved by the structure to magnetic circuit system, with the characteristics of assembling is simple, process is few, armature is light, magnetic circuit cost is low.
Description
Technical field
The present invention relates to a kind of magnetic latching relay, the magnetic of more particularly to a kind of compact magnetic structure keeps relay
Device.
Background technology
The structure of existing magnetic latching relay is made up of magnetic circuit system, contact system, pushing mechanism and pedestal.Magnetic circuit system
Typically it is made up of the magnetic circuit of two almost symmetries, including static magnetic conduction body component, movable magnetic conduction body component and coil, contact system
Including moving spring part, quiet spring part, pushing mechanism typically taken on by pushing block, pushing mechanism be connected to movable magnetic conduction body component with
Between dynamic spring part.Relay coil leads to direct impulse voltage, and magnetic circuit system work, pushing block promotes dynamic spring part, makes contact
Contact, the actuating of relay, coil leads to reverse impulse voltage, and magnetic circuit system work, pushing block promotes dynamic spring part, contact is broken
Open, relay involution.
A kind of magnetic circuit system of magnetic latching relay of prior art includes coil, iron core, yoke and armature part, coil
It is made up of bobbin and the enamel-covered wire being wrapped on bobbin, iron core is inserted in the through hole of bobbin, yoke is two and shape
Respectively L-type, two each of yokes are connected with the two ends of iron core respectively on one side, and each another side of two yokes is respectively intended to
It is connected with armature part, armature part is constituted by armature, magnet steel and by moulding of the armature together with magnet steel injection, is held in the mouth
Iron part is in I-shaped, and the armature of the magnetic circuit system of the magnetic latching relay of this structure is partially due to be to adopt armature with magnet steel
With integral molded plastic, cause that process is various, too high to injection mold required precision, armature part is heavy, and volume is larger, cost compared with
High shortcoming.
The magnetic circuit system of another magnetic latching relay of prior art include coil, iron core, yoke, armature, magnet steel and
Magnetic conductive part, coil is made up of bobbin and the enamel-covered wire being wrapped on bobbin, and iron core is inserted in the through hole of bobbin, and yoke is
L-type, one side of yoke is mutually fixed with the tail end of iron core, and the termination of the another side of yoke is as the edge of a knife, and armature coordinates in yoke
Knife-edge part, magnetic conductive part coordinate in the another side of yoke, one end of magnetic conductive part is mutually fixed with the another side of yoke, magnetic conductive part it is another
It is provided between end and the another side of yoke in a gap, gap of the alinco assembled between yoke and the other end of magnetic conductive part, this
The magnetic circuit system of the magnetic latching relay of structure is planted, wherein magnet steel will away from precision to opening between yoke, the other end of magnetic conductive part
Ask high, open and formed away from being riveted by one end of yoke, magnetic conductive part because of alinco assembled, when open away from it is small when, alinco assembled stress is larger,
It is easily caused magnet steel cracking or fragmentation；When open away from it is big when, magnet steel can not fit with yoke, increase magnetic circuit reluctance, influence product
Uniformity.
The content of the invention
It is an object of the invention to the deficiency for overcoming prior art, there is provided a kind of magnetic of compact magnetic structure holding relay
Device, is improved by the structure to magnetic circuit system, with the characteristics of assembling is simple, process is few, armature is light, magnetic circuit cost is low.
The technical solution adopted for the present invention to solve the technical problems is：A kind of magnetic of compact magnetic structure keeps relay
Device, including magnetic circuit system；Magnetic circuit system includes coil, iron core, yoke, armature, magnet steel and magnetic conductive part, and coil is by bobbin and twines
The enamel-covered wire being wound on bobbin is constituted, and iron core is inserted in the through hole of bobbin, and yoke is L-type, one side and the iron core of yoke
Tail end is mutually fixed, and the termination of the another side of yoke is set to the edge of a knife, and armature coordinates the knife-edge part in yoke, one end inserting of magnetic conductive part
It is in contact in the through hole of bobbin and with the head of iron core, provided with default between the other end of magnetic conductive part and the another side of yoke
Gap, magnet steel fitted in the gap using interference mode；The another side of the yoke is provided with magnetic shielding structure, to increase magnetic
Magnetic resistance when loop is by this.
The magnetic conductive part is U-shaped, and a U-shaped side for magnetic conductive part is inserted into the through hole of bobbin as one end of magnetic conductive part
In and be in contact with the head of iron core, U-shaped another side of magnetic conductive part is used as the other end of magnetic conductive part and the another side of yoke
Between be provided with the default gap.
In the magnet steel, the one side being in contact with the other end of magnetic conductive part is N poles or S poles.
The head of the iron core is provided with the breach for the U-shaped side for being used for being adapted to the magnetic conductive part.
A U-shaped side for the magnetic conductive part is engaged between the through hole of bobbin and the head of iron core for interference.
The magnetic conductive part is between the edge of a knife of yoke and the pole-face of iron core, and magnetic conductive part is less than the edge of a knife and iron core of yoke
Pole-face between line so that when armature is drawn to the pole-face of iron core, armature will not be contacted with magnetic conductive part.
The armature is provided with kink, and armature rides over the knife-edge part of yoke, one side of the kink of armature by kink
It is engaged for the pole-face with iron core, the another side of the kink of armature is used for being engaged with the another side of the yoke.
The magnetic shielding structure is magnet isolation tank, and the magnet isolation tank is located at the another side of the yoke and the joint of magnet steel and institute
Between being engaged of end for stating the another side of yoke and the another side of the kink of the armature.
The another side of the kink of the armature is set to arcuate structure or provided with kink again.
The recess that the arcuate structure of the another side of the kink of the armature or again kink are formed is towards the yoke
The another side of iron.
Compared with prior art, the beneficial effects of the invention are as follows：
One end of magnetic conductive part as a result of being inserted into the through hole of bobbin and connect with the head of iron core by the present invention
Touch, default gap is provided between the other end of magnetic conductive part and the another side of yoke, magnet steel fits in institute using interference mode
State in gap；This structure of the present invention is to utilize bobbin to be plastic material, the characteristics of elasticity is preferable, by the another of magnetic conductive part
Opening away from minus tolerance (close-fitting) is designed between end and the another side of yoke, so, magnet steel can just paste with magnetic conductive part, yoke well
Close, now magnetic conductive part, yoke are changed into the deformation power of the bobbin of magnetic conductive part and bobbin contact position to the chucking power of magnet steel,
Its value is smaller, therefore stress is also smaller suffered by magnet steel, and magnet steel will not be caused to ftracture or fragmentation；It it also avoid magnet steel and open to lead away from larger
The problem of magnet steel of cause is fitted with gap, so as to avoid existing magnetic circuit problem, with assembling is simple, process is few, armature is light,
The characteristics of magnetic circuit cost is low.
The present invention is described in further detail below in conjunction with drawings and Examples；But a kind of compact magnetic circuit of the present invention
The magnetic latching relay of structure is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the structure sectional view of embodiment (non-casing) of the invention；
Fig. 2 is the structure sectional view of the magnetic circuit system of the embodiment present invention；
Fig. 3 is the structural decomposition diagram of the magnetic circuit system of the embodiment present invention；
Fig. 4 is the organigram of the yoke of the magnetic circuit system of the embodiment present invention；
Structural representation when Fig. 5 is armature and the iron core adhesive of the magnetic circuit system of the embodiment present invention；
Fig. 6 is the structural representation when armature of magnetic circuit system of the embodiment present invention is separated with iron core.
Embodiment
Embodiment
Referring to shown in Fig. 1 to Fig. 6, a kind of magnetic latching relay of compact magnetic structure of the invention, the present embodiment
Magnetic structure is horizontal, naturally it is also possible to be vertical；The magnetic latching relay includes magnetic circuit system 3, contact system 4, promotes machine
Structure 2 and pedestal 1, magnetic circuit system 3 include coil 31, iron core 32, yoke 33, armature 34, magnet steel 35 and magnetic conductive part 36, coil 31 by
Bobbin 311 and the enamel-covered wire 312 being wrapped on bobbin are constituted, and iron core 32 is inserted in the through hole of bobbin 311, and yoke 33 is
L-type, one side 331 of yoke is mutually fixed with the tail end of iron core 32, and the termination of the another side 332 of yoke is set to the edge of a knife 333, armature 34
Coordinate at the edge of a knife 333 of yoke, one end of magnetic conductive part 36 be inserted into the through hole of bobbin 311 and with the head phase of iron core 32
Contact, is provided with default gap between the other end of magnetic conductive part 36 and the another side 332 of yoke, magnet steel 35 is fitted using interference mode
Fit in the gap；The another side of the yoke is provided with magnetic shielding structure, magnetic resistance during increasing magnetic loop by this.
In the present embodiment, magnetic conductive part 36 is U-shaped, and a U-shaped side 361 for magnetic conductive part is inserted into as one end of magnetic conductive part
It is in contact in the through hole of bobbin 311 and with the head of iron core 32, U-shaped another side 362 of magnetic conductive part is used as magnetic conductive part
The default gap is provided between the another side 332 of the other end and yoke.
In the present embodiment, in magnet steel 35, the one side being in contact with the other end 362 of magnetic conductive part is S poles.
In the present embodiment, the head of iron core 32 is provided with the breach 321 for the U-shaped side for being used for being adapted to the magnetic conductive part.
In the present embodiment, it was between a U-shaped side 361 for magnetic conductive part and the through hole of bobbin and the head of iron core 32
It is full of and is engaged.
In the present embodiment, magnetic conductive part 36 is between the edge of a knife 333 of yoke and the pole-face 322 of iron core 32, and magnetic conductive part 36
Less than the line between the edge of a knife of yoke and the pole-face of iron core so that when armature 34 is drawn to the pole-face 322 of iron core, armature 34 will not
Contacted with magnetic conductive part 36.
In the present embodiment, armature 34 is provided with kink 341, and armature is ridden at the edge of a knife 333 of yoke by kink 341,
One side 342 of the kink of armature is used for being engaged with the pole-face 322 of iron core, the another side 343 of the kink of armature be used for
The another side 332 of the yoke is engaged.
The magnetic shielding structure is magnet isolation tank 334, and the magnet isolation tank 334 is located at another side 332 and the magnet steel 35 of the yoke
The another side 332 of joint and the yoke and the end of another side 343 of kink of the armature be engaged place
Between.
In the present embodiment, the another side 343 of the kink of armature is provided with kink 344 again, it is of course also possible to by armature
The another side 343 of kink is designed as arcuate structure.
In the present embodiment, the recess 345 that the kink again 344 of the another side of the kink of armature is formed is towards the yoke
The another side 332 of iron.
The magnetic latching relay of a kind of compact magnetic structure of the present invention, as shown in figure 5, solid arrow show magnet steel
35 magnetic flux path, (can be designed to that magnetic resistance is very big as needed, magnetic flux path is not by this because of magnet isolation tank 334
Place), first magnetic flux path of magnet steel 35 is：The N poles of magnet steel 35, the another side 332 of yoke, the edge of a knife 333 of yoke, armature
One side 342 of kink, the first working gas gap S1, iron core 32, magnetic conductive part 36, the S poles of magnet steel 35；The Article 2 magnetic flux of magnet steel 35
Path is：：The N poles of magnet steel 35, the another side 332 of yoke, the edge of a knife 333 of yoke, the another side 343 of the kink of armature,
Two working gas gap S2, the another side 332 of yoke, iron core 32, magnetic conductive part 36, the S poles of magnet steel 35；The magnetic flux of magnet steel 35 passes through respectively
First working gas gap S1 and the second working gas gap S2, wherein the second working gas gap S2 air gap is minimum, air-gap reluctance is smaller, its time
Road magnetic resistance is small, and the magnetic flux for flowing through the second working gas gap S2 is larger, and the first working gas gap S1 air gap is larger, air-gap reluctance compared with
Greatly, its loop magnetic resistance is also larger, and the magnetic flux by the first working gas gap S1 is smaller, therefore, and armature 34 is maintained at position shown in Fig. 5
Put.After coil electricity, the magnetic flux that coil is produced is as shown in dotted arrow in Fig. 5, and it passes through the first working gas gap S1 magnetic flux
It is identical with the flow direction of magnet steel 35, therefore total magnetic flux enhancing；By the second working gas gap S2 magnetic flux with the magnetic flux of magnet steel 35 on the contrary,
Therefore total magnetic flux weakens.When the first working gas gap S1 total magnetic flux is more than the second working gas gap S2 total magnetic flux, armature 34 is moved
Make, now the position of armature 34 is as shown in fig. 6, now the first working gas gap S1 air gap is smaller, and magnetic resistance is small, corresponding magnetic flux compared with
Greatly；Second working gas gap S2 air gap is larger, and magnetic resistance is big, and corresponding magnetic flux is smaller, therefore, and armature 34 is maintained at as shown in Figure 6
Position.Flow direction and above-mentioned Fig. 5 that coil is produced dotted line are on the contrary, the transfer process of armature 34 and above-mentioned principle phase during release
Together.
In magnet steel 35, the one side being in contact with the other end 362 of magnetic conductive part can also be N poles, by adjusting coil current
Direction can just be realized.
A kind of magnetic latching relay of compact magnetic structure of the present invention, employs and inserts one end 361 of magnetic conductive part 36
It is in contact in the through hole of bobbin 311 and with the head of iron core 32, in the another side of the other end 362 and yoke of magnetic conductive part
Default gap is provided between 332, magnet steel 35 is fitted in the gap using interference mode；This structure of the present invention is profit
It is plastic material, the characteristics of elasticity is preferable, by between the other end 362 of magnetic conductive part and the another side of yoke with bobbin 311
Open away from minus tolerance (close-fitting) is designed to, so, magnet steel 35 can just fit with magnetic conductive part 36, yoke 33 well, now magnetic conductive part 36,
Yoke 33 is changed into the deformation power of magnetic conductive part 36 and the bobbin of the contact position of bobbin 311, its value to the chucking power of magnet steel 35
It is smaller, therefore stress is also smaller suffered by magnet steel, and magnet steel will not be caused to ftracture or fragmentation；Magnet steel is it also avoid to open away from larger caused
The problem of magnet steel is fitted with gap, so that existing magnetic circuit problem is avoided, with assembling is simple, process is few, armature is light, magnetic circuit
The characteristics of cost is low.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.Although of the invention
It is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those skilled in the art, are not taking off
In the case of from technical solution of the present invention scope, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
More possible variation and modification, or it is revised as equivalents equivalent embodiment.Therefore, it is every without departing from technical solution of the present invention
Content, according to the technology of the present invention essence to any simple modifications, equivalents, and modifications made for any of the above embodiments, all should fall
In the range of technical solution of the present invention protection.
Claims (10)
1. a kind of magnetic latching relay of compact magnetic structure, including magnetic circuit system；Magnetic circuit system includes coil, iron core, yoke
Iron, armature, magnet steel and magnetic conductive part, coil are made up of bobbin and the enamel-covered wire being wrapped on bobbin, and iron core is inserted in bobbin
Through hole in, yoke is L-type, and one side of yoke is mutually fixed with the tail end of iron core, and the termination of the another side of yoke is set to the edge of a knife, rank
Iron coordinates the knife-edge part in yoke；It is characterized in that：One end of magnetic conductive part be inserted into the through hole of bobbin and with the head of iron core
Portion is in contact, and default gap is provided between the other end of magnetic conductive part and the another side of yoke, and magnet steel is adapted to using interference mode
In the gap；The another side of the yoke is provided with magnetic shielding structure, magnetic resistance during increasing magnetic loop by this.
2. the magnetic latching relay of compact magnetic structure according to claim 1, it is characterised in that：The magnetic conductive part is
U-shaped, a U-shaped side for magnetic conductive part is inserted into the through hole of bobbin as one end of magnetic conductive part and connected with the head of iron core
Touch, U-shaped another side of magnetic conductive part as between the other end of magnetic conductive part and the another side of yoke provided with it is described it is default between
Gap.
3. the magnetic latching relay of compact magnetic structure according to claim 1, it is characterised in that：In the magnet steel,
The one side being in contact with the other end of magnetic conductive part is N poles or S poles.
4. the magnetic latching relay of compact magnetic structure according to claim 2, it is characterised in that：The head of the iron core
Portion is provided with the breach for the U-shaped side for being used for being adapted to the magnetic conductive part.
5. the magnetic latching relay of compact magnetic structure according to claim 2, it is characterised in that：The magnetic conductive part
A U-shaped side is engaged between the through hole of bobbin and the head of iron core for interference.
6. the magnetic latching relay of compact magnetic structure according to claim 1, it is characterised in that：At the magnetic conductive part
Between the edge of a knife of yoke and the pole-face of iron core, and magnetic conductive part makes less than the line between the edge of a knife of yoke and the pole-face of iron core
Armature when being drawn to the pole-face of iron core, armature will not be contacted with magnetic conductive part.
7. the magnetic latching relay of compact magnetic structure according to claim 1, it is characterised in that：The armature is provided with
Kink, armature rides over the knife-edge part of yoke by kink, and one side of the kink of armature is used for matching with the pole-face of iron core
Close, the another side of the kink of armature is used for being engaged with the another side of the yoke.
8. the magnetic latching relay of compact magnetic structure according to claim 7, it is characterised in that：The magnetic shielding structure
For magnet isolation tank, the magnet isolation tank is located at the another side of the another side of the yoke and the joint of magnet steel and the yoke and described
Between being engaged of the end of the another side of the kink of armature.
9. the magnetic latching relay of compact magnetic structure according to claim 7, it is characterised in that：The armature it is curved
The another side of folding part is set to arcuate structure or provided with kink again.
10. the magnetic latching relay of compact magnetic structure according to claim 9, it is characterised in that：The armature
The recess that the arcuate structure of the another side of kink or again kink are formed is towards the another side of the yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058206.3A CN107068491B (en) | 2017-01-23 | 2017-01-23 | Magnetic latching relay with compact magnetic circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058206.3A CN107068491B (en) | 2017-01-23 | 2017-01-23 | Magnetic latching relay with compact magnetic circuit structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107068491A true CN107068491A (en) | 2017-08-18 |
| CN107068491B CN107068491B (en) | 2019-12-20 |
Family
ID=59598018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710058206.3A Active CN107068491B (en) | 2017-01-23 | 2017-01-23 | Magnetic latching relay with compact magnetic circuit structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN107068491B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172471A (en) * | 2018-01-22 | 2018-06-15 | 厦门宏发汽车电子有限公司 | A kind of high load AUTOMOTIVE RELAY with magnet steel arc extinguishing |
| CN109449056A (en) * | 2019-01-04 | 2019-03-08 | 浙江凡华电子有限公司 | A kind of clapper-type magnetic latching relay electromagnetic system and its assembly method |
| CN109637909A (en) * | 2018-12-19 | 2019-04-16 | 温州云鲲智能电气有限公司 | A kind of tripping power mechanism directly driven with residual current and its adjustment method |
| CN110504139A (en) * | 2018-05-18 | 2019-11-26 | 泰科电子奥地利有限责任公司 | Such as yoke assembly, magnetic assembly and the magnetic switching device of the magnetic switching device of relay |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108172471A (en) * | 2018-01-22 | 2018-06-15 | 厦门宏发汽车电子有限公司 | A kind of high load AUTOMOTIVE RELAY with magnet steel arc extinguishing |
| CN110504139A (en) * | 2018-05-18 | 2019-11-26 | 泰科电子奥地利有限责任公司 | Such as yoke assembly, magnetic assembly and the magnetic switching device of the magnetic switching device of relay |
| CN109637909A (en) * | 2018-12-19 | 2019-04-16 | 温州云鲲智能电气有限公司 | A kind of tripping power mechanism directly driven with residual current and its adjustment method |
| CN109637909B (en) * | 2018-12-19 | 2024-05-03 | 温州云鲲智能电气有限公司 | Tripping power mechanism directly driven by residual current and debugging method thereof |
| CN109449056A (en) * | 2019-01-04 | 2019-03-08 | 浙江凡华电子有限公司 | A kind of clapper-type magnetic latching relay electromagnetic system and its assembly method |
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| Publication number | Publication date |
|---|---|
| CN107068491B (en) | 2019-12-20 |
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