CN111370266A - Bevel-contact middle-mounted magnetic steel magnetic circuit structure - Google Patents
Bevel-contact middle-mounted magnetic steel magnetic circuit structure Download PDFInfo
- Publication number
- CN111370266A CN111370266A CN201811587247.2A CN201811587247A CN111370266A CN 111370266 A CN111370266 A CN 111370266A CN 201811587247 A CN201811587247 A CN 201811587247A CN 111370266 A CN111370266 A CN 111370266A
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- magnetic
- iron core
- armature
- coil
- circuit structure
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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
-
- 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
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a bevel-contacted middle-placed magnetic steel magnetic circuit structure, which comprises an upper iron core (2), a lower iron core (8), an armature (4), a transmission rod (9) and a magnetic force part for providing a magnetic loop, wherein the upper iron core (2) is in plane contact with the armature (4), the lower iron core (8) is in bevel contact with the armature (4), one end of the transmission rod (9) is connected with the armature (4), and a main pressure spring (7) is arranged between the lower iron core and the armature; the magnetic force part is positioned on the periphery of the upper iron core (2) and the lower iron core (8). The contact surface of the armature end face and the lower iron core of the magnetic circuit structure adopts an inclined plane structure, the initial electromagnetic attraction which is more than 1 time larger than that of a plane contact structure is improved, the electromagnetic attraction is doubled, and the spring rigidity can also be doubled, so that the vibration resistance of the product is doubled, the vibration performance index is greatly improved, and the requirement of the vibration index of the aerospace contactor is met.
Description
Technical Field
The invention relates to a magnetic circuit structure of a magnetic latching contactor, in particular to a magnetic circuit structure of a middle-placed magnetic steel with an inclined surface in contact.
Background
Most of double-coil magnetic latching contactors in the market adopt a plane contact structure on the binding surface of an armature and an iron core of a magnetic circuit part, due to plane contact, the contact projection area is small, the initial electromagnetic attraction of the whole magnetic circuit part is small, the electromagnetic attraction is small, the rigidity of a main pressure spring on a product is small, the rigidity of the spring is small, and the mechanical counter force provided by the small spring is small, so that the vibration resistance of the whole product is poor, and the increasingly requirement on the vibration resistance index of an aviation contactor cannot be met.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an inclined-surface-contact magnetic circuit structure with middle magnetic steel, which has good vibration performance.
In order to achieve the purpose of the invention, the provided bevel-contact middle-placed magnetic steel magnetic circuit structure comprises an upper iron core, a lower iron core, an armature, a transmission rod and a magnetic part for providing a magnetic force for generating a magnetic circuit, wherein the upper iron core is in plane contact with the armature, the lower iron core is in bevel contact with the armature, one end of the transmission rod is connected with the armature, and a main pressure spring is arranged between the transmission rod and the armature; the magnetic force part is located at the periphery of the upper iron core and the lower iron core.
Furthermore, one surface of the armature, which is in contact with the lower iron core, is of an inclined chamfer structure.
Furthermore, the chamfer angle of the inclined plane and the horizontal plane form an angle of 60 degrees.
Further, the magnetic force part includes magnetizer A, magnetizer B, coil A, coil B, magnet steel A and magnet steel B, go up the iron core with magnetizer A connects, down the iron core with the magnetizer is connected, coil A is located go up the iron core with between the magnetizer B, coil B is located down the iron core with between the magnetizer B, magnet steel A with magnet steel B is located coil A with between the coil B.
Further, magnet steel A with magnet steel B is located side by side coil A with between the coil B.
Furthermore, the magnetic force generated by the magnetic steel A and the magnetic steel B has the same direction.
The invention has the beneficial effects that: the contact surface of the armature end face and the lower iron core of the magnetic circuit structure adopts an inclined plane structure, the initial electromagnetic attraction which is more than 1 time larger than that of a plane contact structure is improved, the electromagnetic attraction is doubled, and the spring rigidity can also be doubled, so that the vibration resistance of the product is doubled, the vibration performance index is greatly improved, and the requirement of the vibration index of the aerospace contactor is met.
The magnetic circuit structure has the advantages of novel structure, larger electromagnetic attraction of the magnetic circuit part, larger holding force and good vibration, impact and acceleration resistance.
Drawings
FIG. 1 is a schematic view of an initial position of a magnetic structure provided by the present invention;
FIG. 2 is a schematic view of the magnetic structure of the present invention in place;
FIG. 3 is a schematic diagram of a magnetic circuit of the magnetic structure provided by the present invention;
in the figure: 1-magnetizer A, 2-upper iron core 2, 3-coil A, 4-armature, 5-magnetizer B, 6-magnetic steel A, 7-main pressure spring, 8-lower iron core, 9-transmission rod, 10-coil B, 11-magnetic steel B, 12-magnetic loop A, 13-magnetic loop B.
Detailed Description
The technical solutions provided by the present invention are further described in detail with reference to the specific embodiments and the accompanying drawings.
As shown in fig. 1-2, the magnetic circuit structure of the bevel-contact centrally-mounted magnetic steel provided by the invention comprises an upper iron core 2, a lower iron core 8, an armature 4, a transmission rod 9 and a magnetic part for providing a magnetic circuit, wherein the upper iron core 2 is in plane contact with the armature 4, the lower iron core 8 is in bevel contact with the armature 4, one end of the transmission rod 9 and the armature 4 are riveted together through a rivet to form an armature part, and a main pressure spring 7 is arranged between the upper iron core 2 and the armature 4; the magnetic force part is located at the outer circumference of the upper core 2 and the lower core 8.
Here, the surface of the armature 4 contacting the lower core 8 has a bevel chamfer structure, and the chamfer can be at any angle with the horizontal plane, such as 40 °, 50 °, 60 °, 80 ° or other angles.
In addition, the magnetic part described in the present invention may adopt any existing magnetic circuit, where the magnetic part includes a magnetizer a1, a magnetizer B5, a coil A3, a coil B10, a magnetic steel A6 and a magnetic steel B11, the upper iron core 2 and the magnetizer a1, and the lower iron core 8 and the magnetizer 5 are riveted together by expansion to form the magnetic part, the coil A3 is located between the upper iron core 2 and the magnetizer B5, the coil B10 is located between the lower iron core 8 and the magnetizer B5, and the magnetic steel A6 and the magnetic steel B11 are located between the coil A3 and the coil B10. Magnetic steel a6 and magnetic steel B11 are located between coil A3 and coil B10 in parallel, but may not be located between coil A3 and coil B10 in parallel.
In addition, the magnetic attraction forces generated by the magnetic steels a6 and B11 are opposite in direction, and a magnetic circuit a12 and a magnetic circuit B13 are respectively formed around the coil A3 and the coil B10, as shown in fig. 3.
The working principle of the magnetic circuit structure provided by the invention is as follows:
1. in the initial position state, because the magnetic gap in the magnetic circuit a12 is small, the magnetic resistance is small, the magnetic force line passes through the magnetic circuit a12 with small magnetic resistance, the a6 magnetic steel and the B11 magnetic steel jointly generate upward magnetic attraction force, under the action of the magnetic attraction force and the initial pressure of the main pressure spring 7, the armature 4 is kept at the initial position, and a certain keeping force is provided.
2. After the coil a3 and the coil B10 are energized, the two coils generate electromagnetic attraction to enable the armature 4 to move downwards and attach to the end face of the lower iron core 8, the counter force of the main pressure spring 7 needs to be overcome in the process, the electromagnetic attraction is always greater than the counter force of the pressure spring, and finally the armature 4 and the lower iron core 8 are completely attached, as shown in fig. 2, the action is finished.
3. In the action process of the magnetic circuit structure, after the end face of the armature iron 4 is changed into an inclined plane, the electromagnetic attraction force is larger, the magnetic efficiency is higher, and the counter force of the main pressure spring 7 which can be overcome is also larger, so that the rigidity of the main pressure spring 7 is larger, and the vibration and impact resistance is better.
4. After the magnetic circuit structure moves in place, because the armature 4 is contacted with the lower iron core 8, the magnetic gap in the magnetic circuit B13 is small, the magnetic resistance is small, the magnetic line of force mainly passes through the magnetic circuit B13, the A6 magnetic steel and the B11 magnetic steel jointly generate downward magnetic attraction force, the magnetic attraction force and the electromagnetic attraction force generated by the coil A3 and the coil B10 jointly overcome the counter force of the main pressure spring 7, and the magnetic circuit structure is kept in the attraction state.
The magnetic circuit structure provided by the invention comprises the following assembly steps: the magnetic circuit system comprises an upper iron core 2, a magnetizer A1, a lower iron core 8, a magnetizer B5, a magnetic conduction part, a transmission rod 9, an armature 4, a coil A3, a coil B10, magnetic steel A1, magnetic steel B11 and a main pressure spring 7, wherein the upper iron core and the magnetizer A1, the lower iron core 8 and the magnetizer B5 are riveted together through expansion riveting to form the magnetic conduction part, the transmission rod 9 and the armature 4 are riveted together to form the armature part, and.
The magnetic circuit structure provided by the invention is electromagnetically simulated through the FLUX, the electromagnetic attraction of the armature under different shapes is calculated, and through a simulation result, the convex table surface of the armature is in plane contact with the surface of the upper iron core, so that a certain large initial holding force is provided, and meanwhile, the large initial electromagnetic attraction and the holding force when a product acts in place are provided.
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited, and modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention are included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a put magnet steel magnetic circuit structure in inclined plane contact which characterized in that: the magnetic circuit structure comprises an upper iron core (2), a lower iron core (8), an armature (4), a transmission rod (9) and a magnetic force part for providing a magnetic circuit, wherein the upper iron core (2) is in plane contact with the armature (4), the lower iron core (8) is in inclined plane contact with the armature (4), one end of the transmission rod (9) is connected with the armature (4), and a main pressure spring (7) is arranged between the upper iron core and the armature; the magnetic force part is positioned on the periphery of the upper iron core (2) and the lower iron core (8).
2. The bevel-contact magnetic circuit structure of center magnetic steel according to claim 1, wherein: and one surface of the armature iron (4) contacted with the lower iron core (8) is of an inclined chamfer structure.
3. The bevel-contact magnetic circuit structure of center magnetic steel according to claim 2, wherein: the chamfer angle of the inclined plane and the horizontal plane form an angle of 60 degrees.
4. The bevel-contacted magnetic circuit structure with center magnetic steel as claimed in claim 1, 2 or 3, wherein: the magnetic force part includes magnetizer A (1), magnetizer B (5), coil A (3), coil B (10), magnet steel A (6) and magnet steel B (11), go up iron core (2) with magnetizer A (1) is connected, down iron core (8) with magnetizer (5) are connected, coil A (3) are located go up iron core (2) with between magnetizer B (5), coil B (10) are located down iron core (8) with between magnetizer B (5), magnet steel A (6) with magnet steel B (11) are located coil A (3) with between coil B (10).
5. The bevel-contacted magnetic circuit structure of center magnetic steel as set forth in claim 4, wherein: magnet steel A (6) with magnet steel B (11) are located side by side coil A (3) with between coil B (10).
6. The bevel-contacted magnetic circuit structure of center magnetic steel as set forth in claim 4, wherein: the magnetic attraction force generated by the magnetic steel A (6) and the magnetic steel B (11) has the same direction.
7. The bevel-contacted magnetic circuit structure of center magnetic steel as set forth in claim 5, wherein: the magnetic attraction force generated by the magnetic steel A (6) and the magnetic steel B (11) has the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587247.2A CN111370266A (en) | 2018-12-25 | 2018-12-25 | Bevel-contact middle-mounted magnetic steel magnetic circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587247.2A CN111370266A (en) | 2018-12-25 | 2018-12-25 | Bevel-contact middle-mounted magnetic steel magnetic circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111370266A true CN111370266A (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811587247.2A Pending CN111370266A (en) | 2018-12-25 | 2018-12-25 | Bevel-contact middle-mounted magnetic steel magnetic circuit structure |
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| Country | Link |
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| CN (1) | CN111370266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374662A (en) * | 2021-06-29 | 2021-09-10 | 哈尔滨工业大学 | Magnetic circuit structure for changing background magnetic field of middle-placed cathode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201607U (en) * | 1985-04-01 | 1986-02-26 | 浙江省瑞安永久机电研究所 | Three position electromagnetic actuator |
| CN1969355A (en) * | 2005-03-28 | 2007-05-23 | 松下电工株式会社 | Contact device |
| CN201611636U (en) * | 2010-01-14 | 2010-10-20 | 中国振华集团群英无线电器材厂 | Closed magnetic keeping contactor |
| CN103943414A (en) * | 2013-01-23 | 2014-07-23 | 博世汽车部件(长沙)有限公司 | Electromagnetic switch and vehicle starter |
| CN107339490A (en) * | 2017-08-17 | 2017-11-10 | 无锡威孚高科技集团股份有限公司 | One kind stops solenoid |
-
2018
- 2018-12-25 CN CN201811587247.2A patent/CN111370266A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201607U (en) * | 1985-04-01 | 1986-02-26 | 浙江省瑞安永久机电研究所 | Three position electromagnetic actuator |
| CN1969355A (en) * | 2005-03-28 | 2007-05-23 | 松下电工株式会社 | Contact device |
| CN201611636U (en) * | 2010-01-14 | 2010-10-20 | 中国振华集团群英无线电器材厂 | Closed magnetic keeping contactor |
| CN103943414A (en) * | 2013-01-23 | 2014-07-23 | 博世汽车部件(长沙)有限公司 | Electromagnetic switch and vehicle starter |
| CN107339490A (en) * | 2017-08-17 | 2017-11-10 | 无锡威孚高科技集团股份有限公司 | One kind stops solenoid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374662A (en) * | 2021-06-29 | 2021-09-10 | 哈尔滨工业大学 | Magnetic circuit structure for changing background magnetic field of middle-placed cathode |
| CN113374662B (en) * | 2021-06-29 | 2022-03-04 | 哈尔滨工业大学 | Magnetic circuit structure for changing background magnetic field of middle-placed cathode |
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Application publication date: 20200703 |
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