CN109830408B - Magnetic latching relay - Google Patents
Magnetic latching relay Download PDFInfo
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- CN109830408B CN109830408B CN201910248446.9A CN201910248446A CN109830408B CN 109830408 B CN109830408 B CN 109830408B CN 201910248446 A CN201910248446 A CN 201910248446A CN 109830408 B CN109830408 B CN 109830408B
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- armature
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- iron core
- yoke
- magnetic steel
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 abstract description 11
- 230000014759 maintenance of location Effects 0.000 description 7
- 230000006698 induction Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Electromagnets (AREA)
Abstract
The invention discloses a magnetic latching relay which comprises a yoke iron, an armature iron and an iron core, wherein the armature iron is elastically connected with the yoke iron through a reed, a coil is wound on the iron core, a pole shoe is arranged at the suction end of the iron core, a protrusion or a groove is arranged on the upper surface of the pole shoe, magnetic steel is arranged on the armature iron, and the magnetic steel corresponds to the iron core in position. According to the invention, the magnetic circuit gap between the iron core and the armature is adjusted through the height difference formed by the protrusion or the groove and the upper surface of the pole shoe, so that the balance of the attractive force and the restoring force of the magnetic circuit on the armature is realized, the armature is provided with the magnetic steel, and when the armature is attracted, the magnetic circuit of the magnetic steel is closed, so that the attraction and the holding of the armature are realized.
Description
Technical Field
The invention belongs to the technical field of relays, and particularly relates to a magnetic latching relay.
Background
The relay is an electronic control device, plays roles of automatic regulation, safety protection, circuit switching and the like in a circuit, and the working principle of the relay is that certain voltage is applied to two ends of a coil, certain current flows through the coil, so that an electromagnetic effect is generated on a magnetic circuit, an armature can be attracted to an iron core under the action of electromagnetic force attraction to overcome the tensile force of a return spring, and a movable contact on a movable spring is driven to be attracted to a static contact on a static spring, so that the conduction effect in the circuit is achieved;
along with the requirements of energy conservation and environmental protection, the application range of the magnetic latching relay is wider and wider, more general relays need to develop magnetic latching specifications, the typical clapping relay is required to realize magnetic latching, an iron core (or yoke) is generally divided into two parts, a permanent magnet is connected in series in the middle to form a series-type magnetic circuit, and after the coil is excited, the magnetic circuit is closed, and magnetic force generated by the permanent magnet can keep the armature in a closed state; the magnetic holding technology of the prior clapping magnetic circuit system is to install magnetic steel on a yoke (the yoke is integrated with the yoke in a riveting mode), for example, the bulletin number is: the chinese patent document CN103426690B discloses a magnetic latching relay of parallel magnetic circuit, which has the disadvantage that the space reserved for the coil is reduced due to the influence of yoke and magnetic steel, resulting in a larger coil power requirement; in addition, the yoke iron can be installed into the relay base after being riveted with the coil and the iron core integrally, so that the magnetic steel and the auxiliary yoke iron increase the difficulty of the production process and are not beneficial to the implementation of automation.
Disclosure of Invention
The invention mainly solves the technical problem of providing a magnetic latching relay, wherein the attraction end of an iron core of the magnetic latching relay is provided with a pole shoe, the upper surface of the pole shoe is provided with a protrusion or a groove, and the magnetic circuit gap between the iron core and an armature is adjusted through the height difference formed by the protrusion or the groove and the upper surface of the pole shoe, so that the attraction force and the restoring force balance of a magnetic circuit on the armature are realized; the magnetic steel is arranged on the armature, the coil of the relay is electrified, the iron core generates electromagnetic force to attract the armature, at the moment, the magnetic circuit of the magnetic steel is also closed, the electromagnetic force disappears after the coil is powered off, and the magnetic circuit of the magnetic steel (permanent magnet) is always closed, so that the attraction and the retention of the armature are realized.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a magnetic latching relay, includes yoke, armature and iron core, the armature with the yoke passes through reed elastic connection, the iron core is wound and is had the coil, the actuation end of iron core has the pole shoe, the upper surface of pole shoe has protruding or recess, through protruding or recess with the difference in height that the upper surface of pole shoe constitutes adjusts the magnetic circuit clearance between iron core and the armature to realize the equilibrium of the attractive force and the restoring force of magnetic circuit at the armature;
the magnetic steel is installed on the armature, the magnetic steel corresponds to the position of the iron core, the coil is electrified, the iron core generates electromagnetic force to attract the armature, at the moment, the magnetic circuit of the magnetic steel is closed, and the magnetic circuit of the magnetic steel is kept closed after the coil is powered off, so that the attraction and the retention of the armature are realized.
Further, the armature has a mounting groove, and the magnetic steel is fixedly mounted in the mounting groove.
Further, the mounting slot is located on a side of the armature.
Further, the mounting groove is located on an upper surface of the armature.
Further, the magnetic steel magnetic induction device comprises a magnetic induction frame, one end of the magnetic induction frame is fixedly connected with the armature, a gap is formed between the other end of the magnetic induction frame and the armature, and the magnetic steel is fixedly installed in the gap.
Further, one side of the pole shoe is provided with a notch, and the attraction force of the iron core to the armature is adjusted through the notch.
Further, the cutout is on the same side as the protrusion or the recess and is adjacent to both.
Further, the yoke is L-shaped, the L-shaped yoke comprises a horizontal yoke and a vertical yoke, the iron core is riveted with the horizontal yoke, one end of the reed is fixedly connected with the vertical yoke, and the other end of the reed is fixedly connected with the armature.
The invention has the beneficial effects that:
the iron core of the relay is provided with the pole shoe, the upper surface of the pole shoe is provided with the protrusion or the groove, and the magnetic circuit gap between the iron core and the armature is adjusted through the height difference formed by the protrusion or the groove and the upper surface of the pole shoe, so that the attraction force of a magnetic circuit on the armature and the balance of the reset force (actually, the set voltage and the reset voltage are adjusted) are realized; the pole shoe is provided with a notch, and the attractive force of the relay is regulated in an auxiliary way through the notch; since the smaller the area of the pole shoe of the iron core is, the greater the attraction force of the pole shoe to the armature in the set position of the armature is, the greater the reset voltage required for resetting the armature is, so that the reset voltage and the set voltage can be balanced as numerically as possible.
According to the relay disclosed by the invention, the magnetic steel is arranged on the armature of the relay, the magnetic steel corresponds to the position of the iron core, the coil of the relay is electrified, the iron core generates electromagnetic force to attract the armature, at the moment, the magnetic circuit of the magnetic steel is also closed, the electromagnetic force disappears after the coil is powered off, and the magnetic circuit of the magnetic steel (permanent magnet) is always closed, so that the attraction and the retention (magnetic retention) of the armature are realized;
the magnetic steel and the armature are integrally combined, and the electromagnetic relay coil yoke part does not need to be changed, coil space is unchanged, coil power consumption can be reduced, and meanwhile, the coil combination of the electromagnetic relay with the same specification and the coil combination of the magnetic latching relay are shared; in addition, because the armature is a single part, the armature is only required to be assembled after the coil part is assembled into the base, riveting is not required, and the automatic implementation is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of a relay of the present invention;
fig. 2 is a schematic structural view of the iron core of the present invention (pole shoe surface groove structure);
fig. 3 is a schematic structural view of the iron core of the present invention (pole shoe surface protrusion structure);
fig. 4 is a schematic structural view of the yoke of the present invention;
fig. 5 is a schematic structural view (first structure) of the armature of the present invention;
fig. 6 is an exploded view (first configuration) of the armature of the present invention;
fig. 7 is a schematic structural view of an armature of the present invention (second structure);
fig. 8 is an exploded view of the armature of the present invention (second construction);
FIG. 9 is a schematic diagram of the magnetic circuit after energizing the coil of the relay;
fig. 10 is a schematic diagram of a magnetic circuit (magnetic holding state) after the coil of the relay is deenergized;
the parts in the drawings are marked as follows:
yoke 1, horizontal yoke 11, first rivet hole 111, vertical yoke 12, armature 2, mounting groove 21A, magnetic conduction frame 21B, iron core 3, pole shoe 31, protrusion 31A, groove 31B, cutout 311, reed 4, magnetic steel 5, electromagnetic circuit C1, and permanent magnet circuit C2.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Examples: a magnetic latching relay as shown in fig. 1: the magnetic field generator comprises a yoke iron 1, an armature iron 2 and an iron core 3, wherein the armature iron is elastically connected with the yoke iron through a reed 4, a coil (not shown) is wound on the iron core, and a pole shoe 31 is arranged at the attraction end of the iron core, as shown in fig. 2 and 3: the upper surface of the pole shoe is provided with a protrusion 31A or a groove 31B, and the magnetic circuit gap between the iron core and the armature is adjusted through the height difference formed by the protrusion or the groove and the upper surface of the pole shoe, so that the balance of the attractive force of the magnetic circuit on the armature and the reset force (the actual adjustment is the set voltage and the reset voltage) is realized.
One side of the pole shoe is provided with a notch 311, and the attraction force of the iron core to the armature before and after the attraction is adjusted through the notch;
the cutout is on the same side as the protrusion or the recess and is adjacent to the protrusion or the recess.
As shown in fig. 4: the yoke is L-shaped, the L-shaped yoke comprises a horizontal yoke 11 and a vertical yoke 12, the iron core is riveted with the horizontal yoke, in the embodiment, the horizontal yoke is provided with a first riveting hole 111, and the lower end of the iron core is inserted into the first riveting hole for riveting;
one end of the spring is fixedly connected with the vertical yoke, the other end of the spring is fixedly connected with the armature, and in the embodiment, the spring, the yoke and the armature are all riveted and fixed.
The magnetic steel 5 is arranged on the armature, the magnetic steel corresponds to the position of the iron core, the coil is electrified, the iron core generates electromagnetic force to attract the armature, at the moment, the magnetic circuit of the magnetic steel is closed, and the magnetic circuit of the magnetic steel is kept closed after the coil is powered off, so that the attraction and the retention of the armature are realized.
The engaging end of the core has pole pieces 31.
The installation mode of the magnetic steel comprises the following modes:
(1) The armature is provided with a mounting groove 21A, and the magnetic steel is fixedly arranged in the mounting groove;
the position of the mounting groove comprises: located on the upper surface of the armature (the side not in contact with the core) and on the side of the armature;
in this embodiment, as shown in fig. 5 and 6: the mounting groove is positioned on the side face of the armature, and after the magnetic steel is installed, both ends (N pole and S pole) of the magnetic steel are wrapped by metal (the armature), and the wrapped metal has the protection and magnetic conduction effects.
(2) As shown in fig. 7 and 8: the magnetic steel is fixedly arranged in the gap;
in this embodiment, the magnetic conductive frame is riveted with the armature.
As shown in fig. 9, the electromagnetic circuit C1 generated when the auxiliary coil of the permanent magnetic circuit C2 of the magnetic steel is energized causes the armature to be attracted; after the coil is de-energized, as shown in fig. 10: the electromagnetic circuit C1 disappears, and the permanent magnetic circuit C2 is continuously closed, so that the armature can be continuously attracted.
The working principle of the invention is as follows:
the iron core of the relay is provided with the pole shoe, the upper surface of the pole shoe is provided with the protrusion or the groove, and the magnetic circuit gap between the iron core and the armature is adjusted through the height difference formed by the protrusion or the groove and the upper surface of the pole shoe, so that the attraction force of a magnetic circuit on the armature and the balance of the reset force (actually, the set voltage and the reset voltage are adjusted) are realized;
the pole shoe is also provided with a notch, and the attractive force of the relay is regulated in an auxiliary way through the notch; since the smaller the area of the pole shoe of the iron core is, the greater the attraction force of the pole shoe to the armature in the set position of the armature is, the greater the reset voltage required for resetting the armature is, so that the reset voltage and the set voltage can be balanced as numerically as possible.
The magnetic steel is arranged on the armature of the relay, the magnetic steel corresponds to the position of the iron core, the coil of the relay is electrified, the iron core generates electromagnetic force to attract the armature, at the moment, the magnetic circuit of the magnetic steel is also closed, the electromagnetic force disappears after the coil is powered off, and the magnetic circuit of the magnetic steel (permanent magnet) is always closed, so that the attraction and the retention (magnetic retention) of the armature are realized.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (4)
1. The utility model provides a magnetic latching relay, includes yoke (1), armature (2) and iron core (3), the armature with the yoke passes through reed (4) elastic connection, the iron core is wound and is had coil, its characterized in that: the attraction end of the iron core is provided with a pole shoe (31), the upper surface of the pole shoe is provided with a protrusion (31A) or a groove (31B), and the magnetic circuit gap between the iron core and the armature is adjusted through the height difference formed by the protrusion or the groove and the upper surface of the pole shoe;
the magnetic steel (5) is arranged on the armature, the magnetic steel corresponds to the position of the iron core, the coil is electrified, the iron core generates electromagnetic force to attract the armature, at the moment, the magnetic circuit of the magnetic steel is closed, and the magnetic circuit of the magnetic steel is kept closed after the coil is powered off;
the magnetic steel is fixedly arranged in the gap;
one side of the pole shoe is provided with a notch (311), and the attraction force of the iron core to the armature is adjusted through the notch;
the notch is positioned on the same side as the protrusion or the groove and is adjacent to the protrusion or the groove;
the yoke is L-shaped, the L-shaped yoke comprises a horizontal yoke (11) and a vertical yoke (12), the iron core is riveted with the horizontal yoke, one end of the reed is fixedly connected with the vertical yoke, and the other end of the reed is fixedly connected with the armature.
2. The magnetic latching relay of claim 1, wherein: the armature has a mounting slot (21A) in which the magnetic steel is fixedly mounted.
3. The magnetic latching relay of claim 2, wherein: the mounting slot is located on a side of the armature.
4. The magnetic latching relay of claim 2, wherein: the mounting groove is located on the upper surface of the armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248446.9A CN109830408B (en) | 2019-03-29 | 2019-03-29 | Magnetic latching relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248446.9A CN109830408B (en) | 2019-03-29 | 2019-03-29 | Magnetic latching relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109830408A CN109830408A (en) | 2019-05-31 |
| CN109830408B true CN109830408B (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910248446.9A Active CN109830408B (en) | 2019-03-29 | 2019-03-29 | Magnetic latching relay |
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| Country | Link |
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| CN (1) | CN109830408B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581043A (en) * | 2019-09-06 | 2019-12-17 | 陕西群力电工有限责任公司 | Sealed strip output radio frequency relay |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008113245A1 (en) * | 2007-03-20 | 2008-09-25 | Zhejiang Prestige Electronic Co., Ltd. | A magnetic latching external relay |
| JP2011014399A (en) * | 2009-07-02 | 2011-01-20 | Fujitsu Component Ltd | Electromagnetic relay |
| WO2011072593A1 (en) * | 2009-12-17 | 2011-06-23 | 厦门宏发电声股份有限公司 | Magnet holding relay with improved magnetic path structure |
| CN103426690A (en) * | 2013-08-14 | 2013-12-04 | 厦门宏发电声股份有限公司 | Magnetic latching relay with parallel magnetic circuit |
| CN103489717A (en) * | 2013-08-27 | 2014-01-01 | 厦门宏发电声股份有限公司 | Clapper-type double-magnetic circuit magnetic latching relay |
| WO2015021847A1 (en) * | 2013-08-14 | 2015-02-19 | 厦门宏发电声股份有限公司 | Magnetic latching relay of parallel type magnetic circuit |
| CN106328446A (en) * | 2016-08-31 | 2017-01-11 | 长沙中坤电气科技股份有限公司 | Magnetic latching relay, magnetic circuit structure and work method thereof |
| CN108987190A (en) * | 2018-07-11 | 2018-12-11 | 贵州航天电器股份有限公司 | Magnetic latching relay is pressed in a kind of double breaking points |
-
2019
- 2019-03-29 CN CN201910248446.9A patent/CN109830408B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008113245A1 (en) * | 2007-03-20 | 2008-09-25 | Zhejiang Prestige Electronic Co., Ltd. | A magnetic latching external relay |
| JP2011014399A (en) * | 2009-07-02 | 2011-01-20 | Fujitsu Component Ltd | Electromagnetic relay |
| WO2011072593A1 (en) * | 2009-12-17 | 2011-06-23 | 厦门宏发电声股份有限公司 | Magnet holding relay with improved magnetic path structure |
| CN103426690A (en) * | 2013-08-14 | 2013-12-04 | 厦门宏发电声股份有限公司 | Magnetic latching relay with parallel magnetic circuit |
| WO2015021847A1 (en) * | 2013-08-14 | 2015-02-19 | 厦门宏发电声股份有限公司 | Magnetic latching relay of parallel type magnetic circuit |
| CN103489717A (en) * | 2013-08-27 | 2014-01-01 | 厦门宏发电声股份有限公司 | Clapper-type double-magnetic circuit magnetic latching relay |
| CN106328446A (en) * | 2016-08-31 | 2017-01-11 | 长沙中坤电气科技股份有限公司 | Magnetic latching relay, magnetic circuit structure and work method thereof |
| CN108987190A (en) * | 2018-07-11 | 2018-12-11 | 贵州航天电器股份有限公司 | Magnetic latching relay is pressed in a kind of double breaking points |
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| CN109830408A (en) | 2019-05-31 |
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Effective date of registration: 20230913 Address after: 241000 No. 16 Tianjingshan Road, Wuhu High tech Industrial Development Zone, Yijiang District, Wuhu City, Anhui Province Applicant after: Anhui Jikong Electrical Appliances Co.,Ltd. Address before: Building 2, No. 9 Shanlin Road, High tech Zone, Suzhou City, Jiangsu Province, 215010 Applicant before: SUZHOU JIKONG ELECTRICAL APPLIANCE Co.,Ltd. |
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