CN112420316A - DC solenoid type electro-permanent magnet - Google Patents
DC solenoid type electro-permanent magnet Download PDFInfo
- Publication number
- CN112420316A CN112420316A CN202011182055.0A CN202011182055A CN112420316A CN 112420316 A CN112420316 A CN 112420316A CN 202011182055 A CN202011182055 A CN 202011182055A CN 112420316 A CN112420316 A CN 112420316A
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- China
- Prior art keywords
- iron core
- permanent magnet
- assembly
- end cover
- solenoid
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 87
- 229910000828 alnico Inorganic materials 0.000 claims abstract description 21
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 15
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims description 6
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 229920006335 epoxy glue Polymers 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000005674 electromagnetic induction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 230000005672 electromagnetic field Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000001846 repelling effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- -1 aluminum nickel cobalt Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
- H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a direct current solenoid type electro-permanent magnet, and relates to the field of electromagnetic elements; the electromagnetic induction type permanent magnet motor comprises a left end cover assembly, a right end cover assembly, an iron core assembly, a coil assembly and a yoke body, wherein a solenoid shell type carapace structure is adopted, the characteristics that the alnico permanent magnet is different in magnetizing direction and different in polarity are utilized, the alnico permanent magnet iron core is enabled to generate the transformation of an N pole and an S pole through the forward or reverse instantaneous magnetizing of a solenoid coil, and then the alnico permanent magnet iron core generates the common actions of like pole repulsion and opposite pole attraction with other permanent magnets such as neodymium iron boron at two ends of a carapace, so that the alnico permanent magnet iron core generates movement and force under the action of a magnetic field; the iron core assembly is arranged in the coil assembly; the left end cover assembly and the right end cover assembly are arranged at two ends of the yoke body by screws; the invention can realize the attraction or release movement of the iron core only by instant electrification, does not need to design a reset structure, has no output loss, does not need to be continuously electrified to keep the attraction state, and effectively reduces the energy consumption.
Description
Technical Field
A direct current solenoid type electro-permanent magnet adopts a solenoid type carapace structure, utilizes the characteristics of different magnetizing directions and different polarities of an alnico permanent magnet, and utilizes the forward or reverse instantaneous magnetization of a solenoid coil to enable an alnico permanent magnet iron core to generate the conversion of an N pole and an S pole, and then utilizes the combined action of like-pole repulsion and opposite-pole attraction with other permanent magnets such as neodymium iron boron at two ends of a carapace, so that the alnico permanent magnet iron core generates movement and force under the action of a magnetic field force.
Background
The solenoid electromagnet is an electric actuating element widely applied, and the principle is that an electromagnetic field is generated after a coil is electrified, an iron core is attracted in place under the action of magnetic field force, the moving distance of the iron core is the stroke of the electromagnet, and the electromagnet needs to be continuously electrified to maintain the electromagnetic field in the moving execution process; after the power is cut off, the iron core returns to the initial position under the traction of a return spring or an external mechanism in the electromagnet.
The solenoid electromagnet is a common electromagnet structural form and is generally applied to occasions with relatively flat reaction force characteristics, need of linear motion and large stroke; the general solenoid electromagnet needs to electrify a solenoid coil to generate an electromagnetic field, and an internal moving iron core overcomes the counterforce of a return spring mechanism under the action of magnetic field force to generate attraction motion; after the attraction is in place, the solenoid coil needs to be continuously electrified to keep the magnetic field stable, and the iron core is kept at the attraction position; after the power is cut off, the iron core is pushed back to the initial position under the action of the reset spring mechanism because the magnetic field force disappears; therefore, the electromagnet needs to be continuously electrified to keep the attraction state, the energy consumption is high, and the electromagnet is continuously electrified to generate heat, so that the service life is influenced; on the other hand, in the process of attracting the electromagnet core, the counterforce of the return spring needs to be overcome, and certain output loss exists.
Disclosure of Invention
The invention aims to: the direct current solenoid type electro-permanent magnet can realize the attraction or release movement of the iron core only by instant energization, does not need to design a reset structure, has no output loss, does not need to be continuously energized to keep the attraction state, and effectively reduces the energy consumption.
The technical scheme adopted by the invention is as follows: a direct current solenoid type electro-permanent magnet comprises a left end cover assembly, a right end cover assembly, an iron core assembly, a coil assembly and a yoke body, wherein the coil assembly is arranged in the yoke body; the iron core assembly is arranged in the coil assembly; the left end cover assembly and the right end cover assembly are arranged at two ends of the yoke body by screws.
The working principle of the invention is as follows: the invention adopts a solenoid type carapace structure, utilizes the characteristics of different magnetizing directions and different polarities of the alnico permanent magnet, and instantaneously magnetizes the alnico permanent magnet in the positive direction or the reverse direction through the solenoid coil to ensure that an alnico permanent magnet iron core generates the transformation of an N pole and an S pole, and then utilizes the combined action of repulsion of like poles and attraction of opposite poles with other permanent magnets at two ends of the carapace, and the like, so that the alnico permanent magnet iron core generates movement and force under the action of a magnetic field force.
The working process is as follows: when the solenoid coil is not electrified, the iron core assembly is limited at an initial position due to the restraint of the like poles of the permanent magnet which attract each other and the opposite poles which repel each other; when the solenoid coil is powered on in a forward direction instantaneously, the coil generates an electromagnetic field, the alnico permanent magnet of the iron core assembly is magnetized in a reverse direction under the action of the electromagnetic field, and the N pole and the S pole of the iron core assembly are reversed; when the solenoid coil is electrified reversely and instantaneously, the alnico permanent magnet of the iron core assembly is magnetized positively under the action of an electromagnetic field, the N pole and the S pole of the iron core assembly are reversed, in the process, the permanent magnet of the left end cover assembly attracts the iron core assembly, and the permanent magnet of the right end cover assembly repels the iron core assembly, so that the iron core assembly can be pushed to move reversely and is adsorbed on the side of the left end cover assembly.
The left end cover assembly comprises a left end cover and a left magnetic ring, the left magnetic ring is embedded in a groove of the left end cover, and the thickness of the groove is 0.1-0.3mm higher than that of the left magnetic ring; the situations that the permanent magnet material is cracked due to direct magnetic collision in the moving process of the iron core assembly and the like are avoided.
The right end cover assembly comprises a right end cover and a right magnetic ring, the right magnetic ring is embedded in a groove of the right end cover, and the thickness of the groove is 0.1-0.3mm higher than that of the right magnetic ring; the situations that the permanent magnet material is cracked due to direct magnetic collision in the moving process of the iron core assembly and the like are avoided.
The iron core assembly comprises an iron core, an iron core magnetic block and a long screw rod, wherein the iron core magnetic block is embedded into the iron core and fixed by the long screw rod; and the fastening function is realized.
The left magnetic ring is made of neodymium iron boron, permanent magnetic ferrite or samarium cobalt materials and is bonded in the left end cover by epoxy resin glue; plays a role in fastening and vibration resistance.
The right magnetic ring is made of neodymium iron boron, permanent magnetic ferrite or samarium cobalt materials and is bonded in the right end cover by epoxy resin glue; plays a role in fastening and resisting vibration
The iron core magnetic block is made of an aluminum nickel cobalt material and is made into a hollow cylinder shape, and is bonded by epoxy resin glue and fastened in the iron core by a long screw; plays a role in fastening and vibration resistance.
The thickness of the groove for embedding the iron core magnetic block in the iron core is 0.1-0.3mm higher than that of the iron core magnetic block; the situations that the permanent magnet material is cracked due to direct magnetic collision in the moving process of the iron core assembly and the like are avoided.
And the distance of the iron core assembly moving in the left end cover assembly and the right end cover assembly is the action stroke.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) the direct current solenoid type electro-permanent magnet can realize the retraction or push-out movement of the iron core only by instantly switching on direct current in a forward direction or a reverse direction when the iron core is attracted or released, so that the energy consumption can be effectively reduced;
(2) when the direct current solenoid type electro-permanent magnet is not electrified, the iron core is firmly adsorbed at one end of the solenoid shell, and a spring is not required to be designed for prepressing, so that the product structure is simplified;
(3) the direct current solenoid type electro-permanent magnet completely realizes the movement and the output of the internal iron core by the suction force and the repulsion force of the permanent magnet, the retracting force and the pushing force are basically consistent, and the phenomena of inconsistent retracting force and pushing force and output loss caused by the design of a spring reset structure are avoided.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the coil of the present invention in an unpowered state;
FIG. 3 is a schematic diagram of the coil in a forward energized state in accordance with the present invention;
FIG. 4 is a schematic diagram of the reverse energization state of the coil of the present invention;
labeled as: 1-right end cover assembly, 11-right end cover, 12-right magnetic ring, 2-left end cover assembly, 21-left end cover, 22-left magnetic ring, 3-iron core assembly, 31-iron core, 32-iron core magnetic block, 33-long screw rod, 4-coil assembly and 5-yoke body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-4, a dc solenoid type electro-permanent magnet includes a left end cover assembly 2, a right end cover assembly 1, an iron core assembly 3, a coil assembly 4, and a yoke body 5, wherein the coil assembly 4 is installed in the yoke body 5; the iron core assembly 3 is arranged in the coil assembly 4; the left end cover assembly 2 and the right end cover assembly 1 are installed at two ends of the yoke body 5 through screws.
The working principle of the invention is as follows: the invention adopts a solenoid type carapace structure, utilizes the characteristics of different magnetizing directions and different polarities of the alnico permanent magnet, and instantaneously magnetizes the alnico permanent magnet in the positive direction or the reverse direction through the solenoid coil to ensure that the alnico permanent magnet iron core 31 generates the transformation of an N pole and an S pole, and then utilizes the combined action of repulsion of like poles and attraction of opposite poles with other permanent magnets such as neodymium iron boron at two ends of the carapace to ensure that the alnico permanent magnet iron core 31 generates movement and force under the action of a magnetic field force.
The working process is as follows: when the solenoid coil is not electrified, the iron core assembly 3 is limited at the initial position due to the restraint of the like poles of the permanent magnet attracting each other and the opposite poles repelling each other; when the solenoid coil is energized in the forward direction instantaneously, the coil generates an electromagnetic field, the alnico permanent magnet of the iron core assembly 3 is magnetized in the reverse direction under the action of the electromagnetic field, and the N pole and the S pole of the iron core assembly 3 are reversed, in the process, the permanent magnet of the left end cover assembly 2 plays a role in repelling the iron core assembly 3, and the permanent magnet of the right end cover assembly 1 plays a role in attracting the iron core assembly 3, so that the iron core assembly 3 can be pushed to move and be adsorbed on the side of the right end cover assembly 1; when the solenoid coil is electrified reversely and instantaneously, the alnico permanent magnet of the iron core assembly 3 is magnetized positively under the action of the electromagnetic field, the N pole and the S pole of the iron core assembly 3 are reversed, in the process, the permanent magnet of the left end cover assembly 2 plays a role in attracting the iron core assembly 3, and the permanent magnet of the right end cover assembly 1 plays a role in repelling the iron core assembly 3, so that the iron core assembly 3 can be pushed to move reversely and be adsorbed on the side of the left end cover assembly 2.
Example 2
On the basis of the embodiment 1, the left end cover assembly 2 comprises a left end cover 21 and a left magnetic ring 22, the left magnetic ring 22 is embedded in a groove of the left end cover 21, and the thickness of the groove is 0.1-0.3mm higher than that of the left magnetic ring; the situations that the permanent magnet material is cracked due to direct magnetic collision in the moving process of the iron core assembly 3 and the like are avoided.
Example 3
On the basis of embodiment 1, the right end cover assembly 1 comprises a right end cover 11 and a right magnetic ring 12, wherein the right magnetic ring 12 is embedded in a groove of the right end cover 11, and the thickness of the groove is 0.1-0.3mm higher than that of the right magnetic ring; the situations that the permanent magnet material is cracked due to direct magnetic collision in the moving process of the iron core assembly 3 and the like are avoided.
Example 4
On the basis of embodiment 1, the iron core assembly 3 includes an iron core 31, iron core 31 magnetic blocks and a long screw 33, wherein the iron core 31 magnetic blocks are embedded in the iron core 31 and fixed by the long screw 33; and the fastening function is realized.
Example 5
On the basis of the embodiment 2, the left magnetic ring 22 is made of neodymium iron boron, permanent magnetic ferrite or samarium cobalt materials into a ring shape, and is bonded in the left end cover 21 by epoxy resin glue; plays a role in fastening and vibration resistance.
Example 6
On the basis of embodiment 3, the right magnetic ring 12 is made of neodymium iron boron, permanent magnetic ferrite or samarium cobalt materials into a ring shape, and is bonded in the right end cover 11 by epoxy resin glue; plays a role in fastening and resisting vibration
Example 7
On the basis of embodiment 4, the magnetic block of the iron core 31 is made of alnico material into a hollow cylinder shape, and is bonded by epoxy resin glue and fastened in the iron core 31 by a long screw 33; plays a role in fastening and vibration resistance.
Example 8
On the basis of embodiment 7, the thickness of the groove of the iron core 31 for embedding the magnetic block of the iron core 31 is 0.1-0.3mm higher than that of the magnetic block of the iron core 31; the situations that the permanent magnet material is cracked due to direct magnetic collision in the moving process of the iron core assembly 3 and the like are avoided.
Example 9
On the basis of embodiment 1, the distance that the iron core assembly 3 moves in the left end cover assembly 2 and the right end cover assembly 1 is the action stroke.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (9)
1. A direct current solenoid type electro-permanent magnet comprises a left end cover assembly (2), a right end cover assembly (1), an iron core assembly (3), a coil assembly (4) and a yoke body (5), and is characterized in that the coil assembly (4) is installed in the yoke body (5); the iron core assembly (3) is arranged in the coil assembly (4); the left end cover assembly (2) and the right end cover assembly (1) are arranged at two ends of the yoke body (5) by screws.
2. A dc solenoid type electro-permanent magnet according to claim 1, wherein the left end cap assembly (2) comprises a left end cap (21) and a left magnetic ring (22), the left magnetic ring (22) is embedded in a groove of the left end cap (21), and the groove is 0.1-0.3mm higher than the thickness of the left magnetic ring (22).
3. The direct current solenoid type electro-permanent magnet according to claim 1, wherein the right end cap assembly (1) comprises a right end cap (11) and a right magnetic ring (12), the right magnetic ring (12) is embedded in a groove of the right end cap (11), and the groove is 0.1-0.3mm higher than the thickness of the right magnetic ring (12).
4. A dc solenoid type electro-permanent magnet according to claim 1, wherein the iron core assembly (3) comprises an iron core (31), iron core magnet blocks (32) and a long screw rod (33), the iron core magnet blocks (32) are embedded in the iron core (31) and fixed by the long screw rod (33).
5. A dc solenoid electro-permanent magnet according to claim 2, characterized in that the left magnetic ring (22) is made of neodymium-iron-boron, permanent magnetic ferrite or samarium-cobalt material and is bonded in the left end cap (21) by epoxy glue.
6. A dc solenoid electro-permanent magnet according to claim 3, characterized in that the right magnetic ring (12) is made of neodymium-iron-boron, permanent-magnet ferrite or samarium-cobalt material into a ring shape, and is bonded in the right end cap (11) by epoxy glue.
7. A DC solenoid electro-permanent magnet according to claim 4, wherein the iron core magnetic block (32) is made of alnico material into hollow cylinder shape, adhered by epoxy resin glue and fastened in the iron core (31) by long screw (33).
8. A DC solenoid electropermanent magnet according to claim 7, characterized in that the thickness of the recess of the iron core (31) embedded with the iron core magnet block (32) is 0.1-0.3mm higher than that of the iron core magnet block (32).
9. A dc solenoid electro-permanent magnet according to claim 1, characterized in that the distance of the movement of the iron core assembly (3) in the left end cover assembly (2) and the right end cover assembly (1) is the stroke of action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182055.0A CN112420316A (en) | 2020-10-29 | 2020-10-29 | DC solenoid type electro-permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182055.0A CN112420316A (en) | 2020-10-29 | 2020-10-29 | DC solenoid type electro-permanent magnet |
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| Publication Number | Publication Date |
|---|---|
| CN112420316A true CN112420316A (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011182055.0A Pending CN112420316A (en) | 2020-10-29 | 2020-10-29 | DC solenoid type electro-permanent magnet |
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| Country | Link |
|---|---|
| CN (1) | CN112420316A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050016A (en) * | 2021-09-15 | 2022-02-15 | 张致豪 | Solenoid actuator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065878A (en) * | 2012-12-25 | 2013-04-24 | 哈尔滨工业大学 | Permanent magnet solenoid type contactor |
| CN110111971A (en) * | 2019-06-14 | 2019-08-09 | 哈尔滨工业大学 | The stable two-way Self-retaining electromagnet in position is realized based on spring pressure and magnetic attraction |
| CN210692253U (en) * | 2019-10-18 | 2020-06-05 | 江麓机电集团有限公司 | Electromagnet displacement sensor mounting structure |
-
2020
- 2020-10-29 CN CN202011182055.0A patent/CN112420316A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065878A (en) * | 2012-12-25 | 2013-04-24 | 哈尔滨工业大学 | Permanent magnet solenoid type contactor |
| CN110111971A (en) * | 2019-06-14 | 2019-08-09 | 哈尔滨工业大学 | The stable two-way Self-retaining electromagnet in position is realized based on spring pressure and magnetic attraction |
| CN210692253U (en) * | 2019-10-18 | 2020-06-05 | 江麓机电集团有限公司 | Electromagnet displacement sensor mounting structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050016A (en) * | 2021-09-15 | 2022-02-15 | 张致豪 | Solenoid actuator |
| CN114050016B (en) * | 2021-09-15 | 2024-03-29 | 上海欧一安保器材有限公司 | Solenoid actuator |
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Application publication date: 20210226 |