CN116844851A - Winding method of PFC inductor by novel winding method - Google Patents
Winding method of PFC inductor by novel winding method Download PDFInfo
- Publication number
- CN116844851A CN116844851A CN202310971942.3A CN202310971942A CN116844851A CN 116844851 A CN116844851 A CN 116844851A CN 202310971942 A CN202310971942 A CN 202310971942A CN 116844851 A CN116844851 A CN 116844851A
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- Prior art keywords
- winding
- wire
- enameled wire
- section
- enameled
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- 238000004804 winding Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- -1 iron-silicon-aluminum Chemical compound 0.000 claims description 5
- 238000010422 painting Methods 0.000 claims description 4
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 3
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 210000003298 dental enamel Anatomy 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention provides a winding method of a PFC inductor by a novel winding method, which comprises the following steps: acquiring an enameled wire and a PFC inductor to be wound; dividing the enameled wire into two sections, determining the length of one end of the enameled wire, and winding the enameled wire in the core in the above dividing mode; one end of the enameled wire and the other end of the enameled wire are respectively wound in two directions, and after reaching a winding preset value, the enameled wire is reversely wound, and the end point is the initial branching point to finish a first-section winding and a second-section winding; and the wire length of the residual enameled wire is subjected to back and forth wire arrangement operation in the residual space of the magnetic core to finish the residual section of winding, and the number of turns of the winding of the first section of winding, the second section of winding and the residual section of winding are equal. The invention solves the problems of low winding efficiency, poor impedance performance, higher turn-to-turn capacitance of the finished product inductance, increased heating value of PFC inductance and reduced working efficiency.
Description
Technical Field
The invention relates to the technical field of new energy magnetic devices, in particular to a winding method of a PFC inductor by a novel winding method
Background
PFC inductance is the core component of the PFC circuit. The iron-silicon-aluminum PFC inductance magnetic core is made of iron-silicon-aluminum materials, and has the characteristics of good current superposition performance and negative temperature coefficient. And has good constant inductance characteristic and DC bias magnetic resistance. Along with the continuous improvement of the working efficiency of the system, the requirements on the winding turn-to-turn capacitance, interlayer capacitance, winding capacitance and spectrum curve of the PFC inductor are also continuously improved.
Traditional PFC inductance adopts the mode of following around to wind, and wire winding inefficiency, impedance performance is relatively poor and the finished product inductance turn-to-turn electric capacity is higher, leads to PFC inductance calorific capacity to increase, and work efficiency reduces, hardly satisfies current circuit system's demand.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a winding method of a PFC inductor by a novel winding method, and the winding method solves the problems of low winding efficiency, poor impedance performance, high turn-to-turn capacitance of a finished product inductor, increased heating value of the PFC inductor and reduced working efficiency.
In order to achieve the above object, the present invention provides the following solutions:
a winding method of a novel PFC inductor by a winding method comprises the following steps:
acquiring an enameled wire and a PFC inductor to be wound;
dividing the enameled wire into two sections, determining the length of one end of the enameled wire, and winding the enameled wire in the core in the above dividing mode;
one end of the enameled wire and the other end of the enameled wire are respectively wound in two directions, and after reaching a winding preset value, the enameled wire is reversely wound, and the end point is the initial branching point to finish a first-section winding and a second-section winding;
and the wire length of the residual enameled wire is subjected to back and forth wire arrangement operation in the residual space of the magnetic core to finish the residual section of winding, and the number of turns of the winding of the first section of winding, the second section of winding and the residual section of winding are equal.
Preferably, the PFC inductor is made of iron silicon, iron silicon aluminum, and iron nickel.
Preferably, the dividing the enamel wire into two sections comprises:
one section of the enameled wire is 1/3 of the total length, and the other section is 2/3 of the total length of the enameled wire.
Preferably, the production process of the enameled wire comprises the following steps:
obtaining a blank;
carrying out large stretching on the blank for multiple times to obtain a primary wire rod;
cleaning the primary wire rod to obtain a secondary wire rod;
annealing the secondary wire rod to obtain an annealed secondary wire rod;
cooling the annealed secondary wire rod to obtain a cooled wire rod;
painting and baking the cooled wire rod to obtain a primary enamelled wire;
performing secondary cooling treatment on the primary enameled wire to obtain a secondary enameled wire;
and carrying out lubrication and wire winding treatment on the secondary enameled wire to obtain the enameled wire.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a winding method of a PFC inductor by a novel winding method, which can improve the impedance characteristic of the PFC inductor, reduce the inter-turn capacitance and interlayer capacitance of windings, reduce the temperature rise of products and improve the overall efficiency of the PFC inductor by utilizing enameled wire multi-section winding.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a winding method of a PFC inductor according to a novel winding method in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a multi-segment winding in accordance with an embodiment of the present invention;
fig. 3 is a graph showing the comparison of the impedance characteristics of the conventional winding method and the winding method of the multi-stage PFC inductor under the same conditions in the embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a winding method of a PFC inductor by a novel winding method, which solves the problems of increased heating value and reduced working efficiency of the PFC inductor caused by low winding efficiency, poor impedance performance and higher turn-to-turn capacitance of a finished product inductor.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the present invention provides a winding method of a PFC inductor by a novel winding method, including:
step 100: acquiring an enameled wire and a PFC inductor to be wound;
step 200: dividing the enameled wire into two sections, determining the length of one end of the enameled wire, and winding the enameled wire in the core in the above dividing mode;
step 300: one end of the enameled wire and the other end of the enameled wire are respectively wound in two directions, and after reaching a winding preset value, the enameled wire is reversely wound, and the end point is the initial branching point to finish a first-section winding and a second-section winding;
step 400: and the wire length of the residual enameled wire is subjected to back and forth wire arrangement operation in the residual space of the magnetic core to finish the residual section of winding, and the number of turns of the winding of the first section of winding, the second section of winding and the residual section of winding are equal.
As shown in fig. 2-3, PFC inductors generally use alloy cores, such as iron-silicon, iron-silicon-aluminum, iron-nickel, and the like.
Further, taking three-stage as an example: the step of dividing the enameled wire into two sections comprises the following steps:
one section of the enameled wire is 1/3 of the total length of the enameled wire, the other section is 2/3 of the total length of the enameled wire, and the enameled wire is divided into two sections of wire separation: one section is 1/3 of the total length, and the other end is 2/3 of the total length; winding the enameled wire in the core in the branching mode; the enamelled wires at the two ends are wound in two directions respectively, the winding range is 2/3 of the outer circumference of the magnetic core, the winding is performed in the opposite direction, and the end point is the initial branching point, so that the winding is performed in the opposite direction; the remaining 1/3 of the wire length of the 2/3 wire head part is arranged in the remaining space of the magnetic core; the number of turns of the three partial windings is equal, three-section winding is realized, and the multi-section winding can be performed first by analogy.
Table 1 is a table of impedance test data for different winding modes, table 1 is shown below:
further, the production process of the enameled wire comprises the following steps:
step 1: obtaining a blank, preparing a copper material as a blank, wherein the copper material is industrial pure copper, the purity is over 99.95 percent, and the conductivity is required to be not lower than 98 percent; when the copper material is prepared, whether the size of the copper material is within a tolerance range is checked, and the appearance of the copper material is ensured to be free from defects of oxidization, burrs and cracks;
step 2: carrying out repeated large stretching on the blank to obtain a primary wire rod, carrying out repeated large stretching on a copper material at the speed of 780-980m/min until the diameter is 6-8 times of the diameter of the final wire rod, and carrying out repeated stretching on the wire rod subjected to large stretching at the speed of 1000-1100m/min until the final diameter of the wire rod is reached;
step 3: cleaning the primary wire rod to obtain a secondary wire rod, and cleaning the wire rod processed in the step 2) by a cleaning device so as to remove greasy dirt and particles on the surface of the wire rod after wire drawing;
step 4: annealing the secondary wire rod to obtain an annealed secondary wire rod, and annealing the cleaned wire rod in an annealing furnace at 460-700 ℃;
step 5: cooling the annealed secondary wire rod to obtain a cooled wire rod, wherein the cooled wire rod is used for cooling the annealed wire rod;
step 6: painting and baking the cooled wire rod to obtain a primary enamelled wire, painting the surface of the wire rod processed in the step 5), and baking and solidifying the painted wire rod;
step 7: performing secondary cooling treatment on the primary enameled wire to obtain a secondary enameled wire, and cooling again to ensure that the enameled wire has better performance;
step 8: and (3) lubricating and coiling the secondary enameled wire to obtain the enameled wire, coating a lubricant on the surface of the baked wire by a lubricating device, coiling by a coiling device, and transporting the coiled wire to a storage warehouse for storage.
The beneficial effects of the invention are as follows:
the impedance characteristic of the PFC inductor can be improved, the turn-to-turn capacitance and interlayer capacitance of the winding are reduced, the temperature rise of the product is reduced, and the overall efficiency of the PFC inductor is improved.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (4)
1. The winding method of the PFC inductor by the novel winding method is characterized by comprising the following steps of:
acquiring an enameled wire and a PFC inductor to be wound;
dividing the enameled wire into two sections, determining the length of one end of the enameled wire, and winding the enameled wire in the core in the above dividing mode;
one end of the enameled wire and the other end of the enameled wire are respectively wound in two directions, and after reaching a winding preset value, the enameled wire is reversely wound, and the end point is the initial branching point to finish a first-section winding and a second-section winding;
and the wire length of the residual enameled wire is subjected to back and forth wire arrangement operation in the residual space of the magnetic core to finish the residual section of winding, and the number of turns of the winding of the first section of winding, the second section of winding and the residual section of winding are equal.
2. The method for winding the PFC inductor according to claim 1, wherein the PFC inductor is made of iron-silicon, iron-silicon-aluminum and iron-nickel.
3. The method for winding the PFC inductor according to claim 1, wherein the step of dividing the enamel wire into two sections comprises:
one section of the enameled wire is 1/3 of the total length, and the other section is 2/3 of the total length of the enameled wire.
4. The winding method of the novel winding PFC inductor according to claim 1, wherein the production process of the enameled wire is as follows:
obtaining a blank;
carrying out large stretching on the blank for multiple times to obtain a primary wire rod;
cleaning the primary wire rod to obtain a secondary wire rod;
annealing the secondary wire rod to obtain an annealed secondary wire rod;
cooling the annealed secondary wire rod to obtain a cooled wire rod;
painting and baking the cooled wire rod to obtain a primary enamelled wire;
performing secondary cooling treatment on the primary enameled wire to obtain a secondary enameled wire;
and carrying out lubrication and wire winding treatment on the secondary enameled wire to obtain the enameled wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310971942.3A CN116844851A (en) | 2023-08-03 | 2023-08-03 | Winding method of PFC inductor by novel winding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310971942.3A CN116844851A (en) | 2023-08-03 | 2023-08-03 | Winding method of PFC inductor by novel winding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116844851A true CN116844851A (en) | 2023-10-03 |
Family
ID=88167277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310971942.3A Pending CN116844851A (en) | 2023-08-03 | 2023-08-03 | Winding method of PFC inductor by novel winding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116844851A (en) |
-
2023
- 2023-08-03 CN CN202310971942.3A patent/CN116844851A/en active Pending
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