CN114446568A - Low-remanence electromagnet and processing method thereof - Google Patents
Low-remanence electromagnet and processing method thereof Download PDFInfo
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- CN114446568A CN114446568A CN202210104947.1A CN202210104947A CN114446568A CN 114446568 A CN114446568 A CN 114446568A CN 202210104947 A CN202210104947 A CN 202210104947A CN 114446568 A CN114446568 A CN 114446568A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/02—Cores, Yokes, or armatures made from sheets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
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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
- H01F2007/062—Details of terminals or connectors for electromagnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a low-remanence electromagnet and a processing method thereof, relates to the technical field of electromagnets, and can reduce the remanence of the electromagnet and avoid baking bread. A low-remanence electromagnet comprises a substrate frame, a coil, an insulating layer, a pin and an iron core. The base material frame comprises a winding part and a pin part. The coil is wound on the winding portion. The insulating layer is wound on the coil. The pins are inserted on the pin parts and connected with the coils. The iron core is inserted in the center of the winding part and is connected with the base material frame, and the iron core is made of pure iron. The iron core is different from a common silicon steel sheet iron core, and the pure iron core is adopted, so that the remanence of the electromagnet is reduced, and the bread can be prevented from being scorched due to the remanence. Meanwhile, the service life of the iron core is further prolonged through secondary rust prevention treatment. The pin has adopted L shape pin, and the boss on the cooperation substrate frame can make the pin more firm, effectively prevents that the pin from dropping.
Description
Technical Field
The invention relates to the technical field of electromagnets, in particular to a low-remanence electromagnet and a processing method thereof.
Background
Bread is often found on people's tables as a breakfast. Toaster is widely used in daily life as a common tool for heating bread.
In the using process of the toaster, the bread can be popped out after being heated, after the bread slices are far away from the toaster and put in, the switch is pressed down, the electromagnet adsorbs the elastic sheet, after the heating is finished, the electromagnet is powered off, and the elastic sheet pops up the bread.
Most of the electromagnets for the existing toaster adopt silicon steel sheet iron cores, have large remanence, and still have the situation of absorbing elastic sheets after power failure, so that bread is scorched.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a low-remanence electromagnet and a processing method thereof, which can reduce the remanence of the electromagnet and avoid baking bread.
According to a first aspect of the present invention, there is provided a low remanence electromagnet comprising a substrate holder including a winding portion and a lead portion; a coil wound on the winding part; the insulating layer is wound on the coil; the pin is inserted on the pin part and is connected with the coil; and the iron core is inserted in the center of the winding part and is connected with the base material frame, and the iron core is made of pure iron.
A low remanence electromagnet according to a first aspect of the present invention, the pin comprising: the first connecting part is inserted on the pin part; and a second connection part connected to the coil, the first connection part being perpendicular to the second connection part.
According to the low-remanence electromagnet in the first aspect of the invention, the pin part is provided with a boss, and the second connecting part abuts against the boss.
According to the low-remanence electromagnet of the first aspect of the invention, the base material frame is provided with the fool-proof mark, the fool-proof mark is an inclined plane, and the fool-proof mark is used for distinguishing the direction of the base material frame.
A method for processing a low-remanence electromagnet according to a second aspect of the present invention includes the steps of:
processing an iron core: punching and shearing pure iron sheets → performing rust prevention treatment on the pure iron sheets → stacking and pulling and riveting the pure iron sheets;
winding processing: base material frame injection molding → coil winding → insulation processing → pin penetrating → pin connecting;
assembling an electromagnet: assembling → dispensing → baking;
as a further improvement of the above scheme, in the iron core processing procedure, after the pure iron sheets are stacked and rivet-riveted, secondary rust prevention treatment is required.
As a further improvement of the above scheme, in the winding process, a bending process is further included before the lead is connected, and the lead is bent into an L shape after the lead is penetrated.
As a further improvement of the scheme, the method further comprises a magnetic force testing procedure, namely, the electromagnet is fixed and then electrified, the iron block connected with the tension meter is adsorbed on the electromagnet, then the tension meter is pulled until the iron block is separated from the electromagnet, and data are read.
As a further improvement of the scheme, the method further comprises a residual magnetism testing procedure, namely, the electromagnet is fixed and then electrified, the iron block connected with the tension meter is adsorbed on the electromagnet, the tension meter is used for setting the test tension, then the electromagnet is powered off, and the time for separating the electromagnet from the iron block after being powered off is measured through the photoelectric switch.
As a further improvement of the scheme, the time from the power failure to the separation of the electromagnet and the iron block is not more than 0.5 second.
The invention has at least the following beneficial effects: a low-remanence electromagnet comprises a substrate frame, a coil, an insulating layer, a pin and an iron core. The iron core is different from a common silicon steel sheet iron core, and the pure iron core is adopted, so that the remanence of the electromagnet is reduced, and the bread can be prevented from being scorched due to the remanence. Meanwhile, the service life of the iron core is further prolonged through secondary rust prevention treatment. The pin has adopted L shape pin, and the boss on the cooperation substrate frame can make the pin more firm, effectively prevents that the pin from dropping.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the preferred embodiment of the present invention;
FIG. 3 is a schematic view of a substrate holder according to a preferred embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a lead according to a preferred embodiment of the present invention;
fig. 5 is a schematic structural diagram of an iron core according to a preferred embodiment of the present invention.
FIG. 6 is a flow chart illustrating a process according to the present invention.
Description of the drawings:
the anti-blocking device comprises a base material frame 10, a winding part 11, a pin part 12, a boss 121 and a fool-proof mark 13; a coil 20; an insulating layer 30; a pin 40, a first connection portion 41, and a second connection portion 42.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 5, a low residual magnetism electromagnet includes a substrate holder 10, a coil 20, an insulating layer 30, a pin 40, and a core 50. The base material frame 10 includes a winding portion 11 and a lead portion 12. The coil 20 is wound around the winding portion 11. An insulating layer 30 is wound on the coil 20. The lead pins 40 are inserted on the lead part 12 and connected with the coil 20. The iron core 50 is inserted in the center of the winding part 11 and connected with the base material frame 10, and the iron core 50 is made of pure iron.
It should be noted that the iron core 50 is made of pure iron, and unlike the iron core 50 made of common silicon steel sheets, the residual magnetism of the iron core 50 made of pure iron is greatly reduced, so that the bread can be prevented from being scorched due to the residual magnetism.
Referring to fig. 4, the pin 40 includes: a first connection portion 41 and a second connection portion 42. The first connecting portion 41 is inserted on the lead portion 12. The second connection portion 42 is connected to the coil 20. The first connection portion 41 is perpendicular to the second connection portion 42.
It can be understood that the first connecting portion 41 of the pin 40 is perpendicular to the second connecting portion 42, that is, the pin 40 is L-shaped, so as to prevent the pin 40 from separating from the substrate holder 10 due to vibration during operation, thereby improving stability of the product.
Referring to fig. 3, the lead portion 12 is provided with a boss 121, and the second connecting portion 42 abuts against the boss 121.
It should be noted that the bosses 121 serve two purposes, one is for positioning the bending, and the other is for further enhancing the anti-falling performance of the pins 40.
Referring to fig. 3, the substrate holder 10 is provided with a fool-proof mark 13, the fool-proof mark 13 is an inclined plane, and the fool-proof mark 13 is used for distinguishing the direction of the substrate holder 10.
It can be understood that the fool-proof mark 13 can ensure that the rotation direction of the coil 20 is consistent and no error occurs when the worker performs the step of winding the coil 20.
Referring to fig. 6, a method for processing a low remanence electromagnet, to which the first aspect of the present invention is applied, includes the steps of:
and (3) processing of the iron core 50: punching and shearing pure iron sheets → performing rust prevention treatment on the pure iron sheets → stacking and pulling and riveting the pure iron sheets;
winding processing: the base material frame 10 is injection molded → the coil 20 → insulation processing → the lead pin 40;
assembling an electromagnet: assembly → dispensing → baking.
Specifically, in step S1, the pure iron piece is punched and cut into a desired shape, and then the punched and cut iron piece is subjected to an anti-rust treatment such as blackening or the like. The pure iron sheets are then stacked and then riveted to form the core 50.
In step S2, the substrate holder 10 is first injection molded, and then the substrate holder 10 is placed in a winding machine to wind the coil 20, and after the coil 20 is wound, the insulating layer 30 is wound around the outside of the coil 20 to insulate the coil 20 from other parts. After that, the conductive leads 40 are inserted into the lead portions 12, and then both ends of the coil 20 are soldered to the two leads 40.
After the core 50 is inserted into the base material holder 10 at the center of the winding portion 11 in step S3, glue is applied to the core 50 where it contacts the base material holder 10, and then it is sent to an oven to be baked, and the glue is cured.
As a further improvement of the above scheme, in the iron core processing procedure, after the pure iron sheets are stacked and rivet-riveted, secondary rust prevention treatment is required.
It can be understood that the secondary rust-proof treatment can further enhance the rust-proof effect, reduce the corrosion probability and prolong the service life of the iron core 50.
As a further improvement of the above scheme, in the winding process, a bending process is further included before the lead pin 40 is connected, and the lead pin is bent into an L shape after the lead pin is penetrated.
As a further improvement of the scheme, the processing method of the low-remanence electromagnet further comprises a magnetic force testing procedure, namely, the electromagnet is fixed and then electrified, an iron block connected with a tension meter is adsorbed on the electromagnet, then the tension meter is pulled until the iron block is separated from the electromagnet, and data are read.
It can be understood that the purpose of the magnetic force test is to prevent the iron core 50 or the coil 20 from having processing problems, so that the electromagnet has insufficient magnetic force, and unqualified products are rejected.
As a further improvement of the scheme, the processing method of the low-remanence electromagnet further comprises a remanence testing procedure, namely, the electromagnet is fixed and then electrified, an iron block connected with a tension meter is adsorbed on the electromagnet, the tension meter is used for setting a test tension, then the electromagnet is powered off, and the time for separating the electromagnet from the iron block after the electromagnet is powered off is measured through a photoelectric switch.
It can be understood that during the residual magnetism test, the elasticity of the toaster elastic sheet can be used as the test pressure to simulate the working environment of the toaster and test the residual magnetism condition of the product, and unqualified products are selected.
As a further improvement of the scheme, the time from the power failure to the separation of the electromagnet and the iron block is not more than 0.5 second.
It is understood that if the separation time is longer than 0.5 seconds, the surface residual magnetism is too large, which easily causes the baking time of the bread to be too long, thereby causing a scorched feeling and affecting the taste.
It should be noted that, in the electromagnet with unqualified remanence, the iron core 50 may be separated from the base material frame 10, then heat treated, and then assembled and tested. The production cost is reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A low remanence electromagnet, comprising:
a base material frame including a winding portion and a lead portion;
a coil wound on the winding part;
the insulating layer is wound on the coil;
the pin is inserted on the pin part and is connected with the coil; and
the iron core is inserted in the center of the winding part and connected with the base material frame, and the iron core is made of pure iron.
2. A low remanence electromagnet according to claim 1, wherein the pin comprises:
the first connecting part is inserted on the pin part; and
and the second connecting part is connected with the coil, and the first connecting part is vertical to the second connecting part.
3. A low remanence electromagnet according to claim 2, wherein a boss is provided on the pin portion, and the second connecting portion abuts against the boss.
4. The electromagnet of claim 1, wherein the substrate holder has a mark for fool-proofing, the mark for fool-proofing being an inclined plane, the mark for fool-proofing being used to distinguish the direction of the substrate holder.
5. The method for processing a low-remanence electromagnet according to claim 1, wherein the low-remanence electromagnet according to any one of claims 1 to 4 is applied, and the method comprises the following steps:
processing an iron core: punching and shearing pure iron sheets → performing rust prevention treatment on the pure iron sheets → stacking and pulling and riveting the pure iron sheets;
winding processing: base material frame injection molding → coil winding → insulation processing → pin penetrating → pin connecting;
assembling an electromagnet: assembly → dispensing → baking.
6. The method for processing the electromagnet with the low residual magnetism according to the claim 5, characterized in that in the iron core processing procedure, after the pure iron sheet is stacked and rivet-riveted, the secondary rust prevention treatment is needed.
7. The method for processing the electromagnet with low residual magnetism according to claim 5, wherein in the winding process, before the pin is connected, a bending process is further included, and after the pin is penetrated, the pin is bent into an L shape.
8. The method of claim 5, further comprising a magnetic force testing step of fixing the electromagnet and then energizing, attaching the iron block connected to the tension meter to the electromagnet, and then pulling the tension meter until the iron block is separated from the electromagnet, and reading the data.
9. The processing method of the electromagnet with the low residual magnetism according to the claim 5, characterized by further comprising a residual magnetism testing procedure, wherein the electromagnet is fixed and then electrified, an iron block connected with a tension meter is adsorbed on the electromagnet, a testing tension is set through the tension meter, then the electromagnet is powered off, and the time of the electromagnet being separated from the iron block after being powered off is measured through a photoelectric switch.
10. A method of manufacturing a low remanence electromagnet as claimed in claim 9, wherein the time after de-energizing until the electromagnet is separated from the iron block is not more than 0.5 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104947.1A CN114446568A (en) | 2022-01-27 | 2022-01-27 | Low-remanence electromagnet and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104947.1A CN114446568A (en) | 2022-01-27 | 2022-01-27 | Low-remanence electromagnet and processing method thereof |
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| CN114446568A true CN114446568A (en) | 2022-05-06 |
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| CN202210104947.1A Pending CN114446568A (en) | 2022-01-27 | 2022-01-27 | Low-remanence electromagnet and processing method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201498295U (en) * | 2009-08-26 | 2010-06-02 | 东莞市大忠电子有限公司 | Electromagnet iron core |
| CN201717097U (en) * | 2010-07-07 | 2011-01-19 | 青岛市恒顺电气股份有限公司 | Imporous oblique joint laminated iron core |
| CN201898011U (en) * | 2010-12-15 | 2011-07-13 | 广州市德珑电子器件有限公司 | Iron core laminated electromagnet |
| CN205406258U (en) * | 2016-03-11 | 2016-07-27 | 天津市中环通捷电器有限公司 | Improve transformer of coil brace structure |
| CN208173333U (en) * | 2018-05-30 | 2018-11-30 | 丁玉军 | A kind of dust-proof electromagnet for toaster |
| CN212967301U (en) * | 2020-07-02 | 2021-04-13 | 珠海黎明云路新能源科技有限公司 | Skeleton structure and have its inductor |
-
2022
- 2022-01-27 CN CN202210104947.1A patent/CN114446568A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201498295U (en) * | 2009-08-26 | 2010-06-02 | 东莞市大忠电子有限公司 | Electromagnet iron core |
| CN201717097U (en) * | 2010-07-07 | 2011-01-19 | 青岛市恒顺电气股份有限公司 | Imporous oblique joint laminated iron core |
| CN201898011U (en) * | 2010-12-15 | 2011-07-13 | 广州市德珑电子器件有限公司 | Iron core laminated electromagnet |
| CN205406258U (en) * | 2016-03-11 | 2016-07-27 | 天津市中环通捷电器有限公司 | Improve transformer of coil brace structure |
| CN208173333U (en) * | 2018-05-30 | 2018-11-30 | 丁玉军 | A kind of dust-proof electromagnet for toaster |
| CN212967301U (en) * | 2020-07-02 | 2021-04-13 | 珠海黎明云路新能源科技有限公司 | Skeleton structure and have its inductor |
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