CN117423536A - Novel PFC inductance and BUCK inductance integrated structure - Google Patents
Novel PFC inductance and BUCK inductance integrated structure Download PDFInfo
- Publication number
- CN117423536A CN117423536A CN202311311360.9A CN202311311360A CN117423536A CN 117423536 A CN117423536 A CN 117423536A CN 202311311360 A CN202311311360 A CN 202311311360A CN 117423536 A CN117423536 A CN 117423536A
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- coil
- magnetic core
- inductor
- buck
- integrated structure
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- FQMNUIZEFUVPNU-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co] FQMNUIZEFUVPNU-UHFFFAOYSA-N 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- 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
- H01F27/24—Magnetic cores
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to the technical field of inductors, in particular to a novel PFC inductor and BUCK inductor integrated structure. Technical problems: the PFC inductor and BUCK inductor integrated structure aims at solving the technical problems that the occupied area is large and the required cost is high when the PFC inductor and the BUCK inductor are independently used in the prior art. The technical scheme is as follows: a novel PFC inductor and BUCK inductor integrated structure comprises a coil; the magnetic strip, the first magnetic core and the second magnetic core are also included; a magnetic strip is inserted into a square hole penetrating through the middle part of the coil from front to back; the left end and the right end of the coil are respectively inserted with a first magnetic core and a second magnetic core. The PFC inductor and the BUCK inductor are integrated in an independent operation mode, the PFC inductor and the BUCK inductor are integrated into an integrated product, the size of the independent two components is reduced, the cost is reduced, the performance of the product can be improved greatly, the PFC inductor and the BUCK inductor are integrated, the PFC inductor and the BUCK inductor share one magnetic stripe, different turns and different inductance values can be made for the PFC inductor and the BUCK inductor, and the PCB layout is more convenient.
Description
Technical Field
The invention relates to the technical field of inductors, in particular to a novel PFC inductor and BUCK inductor integrated structure.
Background
At present, in the application of power components, the PFC inductor and the BUCK inductor are used as independent electronic components, and the PFC inductor and the BUCK inductor occupy a large area in practical application, so that the PCB layout is inconvenient, and the PFC inductor and the BUCK inductor are used as two products to be independently produced, so that the working procedures are more in production, the overall production efficiency is lower, the two products are independently produced, and the required cost is higher.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a novel PFC inductor and BUCK inductor integrated structure, which aims to solve the technical problems that the occupation area of the PFC inductor and the BUCK inductor used independently is large and the required cost is higher in the prior art.
The technical scheme of the invention is as follows: a novel PFC inductor and BUCK inductor integrated structure comprises a coil; the magnetic strip, the first magnetic core and the second magnetic core are also included; a magnetic strip is inserted into a square hole penetrating through the middle part of the coil from front to back; the left end and the right end of the coil are respectively inserted with a first magnetic core and a second magnetic core;
the combination steps are as follows:
step one: inserting the magnetic strips into square holes in the middle of the coil from front to back, enabling the front and back ends of the magnetic strips to be flush with the front and back ends of the coil, and fixing the magnetic strips in the coil;
step two: the first magnetic core is aligned with the coil, the first magnetic core is inserted into a groove at the left end of the coil and fixed, and at the moment, the right end of the first magnetic core is attached to the left end of the magnetic stripe;
step three: and step two, the second magnetic core is placed into a groove at the right end of the coil and fixed, and a finished product is obtained.
Preferably, the coil is a skeleton winding or a coil cake winding.
Preferably, the number of turns and length in the coil are calculated as follows:
1) According to the size of the framework, the number of turns N is calculated,wherein L is mH, the other parameters are mm, D is the average diameter of the coil, b is the axial length of the framework, and C is the thickness of the coil;
2) Selecting enameled wire and wire diameterk is the tightness of the winding, generally 1.1-1.3;
3) Estimating the total length of wire l=dpi N10 -3 (m)；
4) The inductance of the coil is calculated and,coil inductance error + -10%.
Preferably, the winding step of the coil comprises the following steps:
1) Tying one end of a copper wire or an aluminum wire on a coil frame, and wrapping an insulating tape to prevent the coil from loosening or deforming;
2) Winding copper wires or aluminum wires on a coil frame along a specified number of turns and length to form a coil;
3) In the winding process, a wire pressing device is required to be continuously used for fixing the coil on the coil rack;
4) When winding to the last circle, the other end of the copper wire or the aluminum wire is tied on the coil frame and is wrapped by an insulating tape, so that the coil is prevented from loosening or deforming.
Preferably, the first magnetic core and the second magnetic core are PFC inductance and BUCK inductance, respectively.
Preferably, the first core and the second core have an ER type, EE type, EI type, EQ type, EF type, PQ type, or ED type shape.
Preferably, the coil is connected with the magnetic stripe, the first magnetic core and the second magnetic core through glue or screws.
Preferably, the first magnetic core and the second magnetic core are made of ferrite, cobalt iron or nickel iron.
The invention has the beneficial effects that:
1. the PFC inductor and the BUCK inductor are independently operated, and are combined into an integrated product, the size of the independent two components is reduced, the cost is reduced, the performance of the product can be greatly improved, the PFC inductor and the BUCK inductor are integrated, the two inductors share one magnetic stripe, different turns and different inductance values can be made for the PFC inductor and the BUCK inductor, the structure is more compact, and the PCB layout is more convenient;
2. the first magnetic core and the second magnetic core are integrated on the same coil, so that the occupied space of the inductor is effectively reduced, two independent inductors are more convenient in PCB layout, the production cost is reduced, the first magnetic core and the second magnetic core share one magnetic stripe, and the integrated product has different inductance to replace original components.
Drawings
FIG. 1 shows a schematic diagram of a first perspective structure of an integrated structure of a novel PFC inductor and a BUCK inductor according to the present invention;
FIG. 2 is a schematic diagram showing a second perspective structure of the integrated structure of the novel PFC inductor and BUCK inductor according to the present invention;
FIG. 3 is a schematic diagram showing a three-dimensional structure of a coil in the integrated structure of the novel PFC inductor and BUCK inductor according to the present invention;
FIG. 4 is a schematic diagram showing a three-dimensional structure of a magnetic stripe in the integrated structure of the novel PFC inductor and BUCK inductor according to the present invention;
FIG. 5 is a schematic diagram showing a perspective structure of a second magnetic core in the novel PFC inductor and BUCK inductor integrated structure according to the present invention;
fig. 6 shows an assembly flow diagram of the novel PFC inductor and BUCK inductor integrated structure according to the present invention.
Reference numerals illustrate: 1. a coil; 2. a magnetic stripe; 3. a first magnetic core; 4. a second magnetic core.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1-6, the present invention provides an embodiment: a novel PFC inductance and BUCK inductance integrated structure comprises a coil 1; the magnetic strip 2, the first magnetic core 3 and the second magnetic core 4 are also included; the magnetic strip 2 is inserted into a square hole penetrating from front to back in the middle of the coil 1; the left end and the right end of the coil 1 are respectively inserted with a first magnetic core 3 and a second magnetic core 4;
the combination steps are as follows:
step one: inserting the magnetic stripe 2 into a square hole in the middle of the solenoid 1 from front to back, enabling the front end and the rear end of the magnetic stripe 2 to be flush with the front end and the rear end of the solenoid 1, and fixing the magnetic stripe 2 in the solenoid 1;
step two: the first magnetic core 3 is aligned with the coil 1, the first magnetic core 3 is inserted into a groove at the left end of the coil 1 and fixed, and at the moment, the right end of the first magnetic core 3 is attached to the left end of the magnetic stripe 2;
step three: and step two, the second magnetic core 4 is put into a groove at the right end of the coil 1 and fixed, and a finished product is obtained.
Preferably, the coil 1 is a skeleton winding or a coil cake winding.
Preferably, the number of turns and the length in the coil 1 are calculated as follows:
1) According to the size of the framework, the number of turns N is calculated,wherein L is mH, the other parameters are mm, D is the average diameter of the coil, b is the axial length of the framework, and C is the thickness of the coil;
2) Selecting enameled wire and wire diameterk is the tightness of the winding, generally 1.1-1.3;
3) Estimating the total length of wire l=dpi N10 -3 (m)；
4) The inductance of the coil is calculated and,coil inductance error + -10%.
Preferably, the winding step of the coil 1 is as follows:
1) Tying one end of a copper wire or an aluminum wire on a coil frame, and wrapping an insulating tape to prevent the coil from loosening or deforming;
2) Winding copper wires or aluminum wires on a coil frame along a specified number of turns and length to form a coil;
3) In the winding process, a wire pressing device is required to be continuously used for fixing the coil on the coil rack;
4) When winding to the last circle, the other end of the copper wire or the aluminum wire is tied on the coil frame and is wrapped by an insulating tape, so that the coil is prevented from loosening or deforming.
Preferably, the first magnetic core 3 and the second magnetic core 4 are PFC inductance and BUCK inductance, respectively.
Preferably, the shapes of the first core 3 and the second core 4 are ER type, EE type, EI type, EQ type, EF type, PQ type, or ED type.
Preferably, the coil 1 is connected with the magnetic stripe 2, the first magnetic core 3 and the second magnetic core 4 through glue or screws.
Preferably, the first magnetic core 3 and the second magnetic core 4 are made of ferrite, cobalt iron or nickel iron.
When the combination is carried out, the steps are as follows:
step one: inserting the magnetic stripe 2 into a square hole in the middle of the coil 1 from front to back, enabling the front end and the rear end of the magnetic stripe 2 to be flush with the front end and the rear end of the coil 1, and fixing the magnetic stripe 2 in the coil 1, wherein the calculation steps of the number of turns and the length in the coil 1 are as follows:
1) According to the size of the framework, the number of turns N is calculated,wherein L is mH, the other parameters are mm, D is the average diameter of the coil, b is the axial length of the framework, and C is the thickness of the coil;
2) Selecting enameled wire and wire diameterk is the tightness of the winding, generally 1.1-1.3;
3) Estimating the total length of wire l=dpi N10 -3 (m)；
4) The inductance of the coil is calculated and,coil inductance error + -10%;
the winding step of the coil 1 is as follows:
1) Tying one end of a copper wire or an aluminum wire on a coil frame, and wrapping an insulating tape to prevent the coil from loosening or deforming;
2) Winding copper wires or aluminum wires on a coil frame along a specified number of turns and length to form a coil;
3) In the winding process, a wire pressing device is required to be continuously used for fixing the coil on the coil rack;
4) When the coil is wound to the last circle, the other end of the copper wire or the aluminum wire is tied on the coil frame and is wrapped by an insulating tape, so that the coil is prevented from loosening or deforming;
step two: the first magnetic core 3 is aligned with the coil 1, the first magnetic core 3 is inserted into a groove at the left end of the coil 1 and fixed, and at the moment, the right end of the first magnetic core 3 is attached to the left end of the magnetic stripe 2;
step three: and step two, the second magnetic core 4 is put into a groove at the right end of the coil 1 and fixed, and a finished product is obtained.
Through above-mentioned integrated configuration, with PFC inductance and the independent individual operation mode of BUCK inductance, combine into one and make an integrated product, this kind of mode reduces two independent components and parts volume alone, and the cost is reduced, and the performance of product can obtain bigger promotion instead, has integrated PFC inductance and BUCK inductance, and two kinds of inductance share a magnetic stripe, can make different turns and different inductance with PFC inductance, and the structure is compacter, and PCB overall arrangement is more convenient.
The embodiments of the present invention have been described in detail with reference to the 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 spirit of the present invention.
Claims (8)
1. A novel PFC inductor and BUCK inductor integrated structure comprises a coil (1); the method is characterized in that: the magnetic strip (2), a first magnetic core (3) and a second magnetic core (4) are also included; a magnetic strip (2) is inserted into a square hole penetrating through the middle part of the coil (1) from front to back; the left end and the right end of the coil (1) are respectively inserted with a first magnetic core (3) and a second magnetic core (4);
the combination steps are as follows:
step one: inserting the magnetic stripe (2) into a square hole in the middle of the solenoid (1) from front to back, enabling the front end and the back end of the magnetic stripe (2) to be flush with the front end and the back end of the solenoid (1), and fixing the magnetic stripe (2) in the solenoid (1);
step two: the first magnetic core (3) is aligned with the coil (1), the first magnetic core (3) is inserted into a groove at the left end of the coil (1) and fixed, and at the moment, the right end of the first magnetic core (3) is attached to the left end of the magnetic stripe (2);
step three: and step two, the second magnetic core (4) is put into a groove at the right end of the coil (1) and fixed, and a finished product is obtained.
2. The novel PFC inductor and BUCK inductor integrated structure according to claim 1, wherein: the coil (1) is wound by a framework or a coil cake.
3. The novel PFC inductor and BUCK inductor integrated structure according to claim 1, wherein: the number of turns and the length of the coil (1) are calculated as follows:
1) According to the size of the framework, the number of turns N is calculated,wherein L is mH, the other parameters are mm, D is the average diameter of the coil, b is the axial length of the framework, and C is the thickness of the coil;
2) Selecting enameled wire and wire diameterk is the tightness of the winding, generally 1.1-1.3;
3) Estimating the total length of wire l=dpi N10 -3 (m)；
4) The inductance of the coil is calculated and,coil inductance error + -10%.
4. The novel PFC inductor and BUCK inductor integrated structure according to claim 1, wherein: the winding step of the coil (1) is as follows:
1) Tying one end of a copper wire or an aluminum wire on a coil frame, and wrapping an insulating tape to prevent the coil from loosening or deforming;
2) Winding copper wires or aluminum wires on a coil frame along a specified number of turns and length to form a coil;
3) In the winding process, a wire pressing device is required to be continuously used for fixing the coil on the coil rack;
4) When winding to the last circle, the other end of the copper wire or the aluminum wire is tied on the coil frame and is wrapped by an insulating tape, so that the coil is prevented from loosening or deforming.
5. The novel PFC inductor and BUCK inductor integrated structure according to claim 1, wherein: the first magnetic core (3) and the second magnetic core (4) are PFC inductance and BUCK inductance respectively.
6. The novel PFC inductor and BUCK inductor integrated structure according to claim 1, wherein: the first magnetic core (3) and the second magnetic core (4) are ER type, EE type, EI type, EQ type, EF type, PQ type or ED type.
7. The novel PFC inductor and BUCK inductor integrated structure according to claim 1, wherein: the solenoid (1) is connected with the magnetic stripe (2), the first magnetic core (3) and the second magnetic core (4) through glue or screws.
8. The novel PFC inductor and BUCK inductor integrated structure according to claim 1, wherein: the first magnetic core (3) and the second magnetic core (4) are made of ferrite, cobalt iron or nickel iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311311360.9A CN117423536A (en) | 2023-10-11 | 2023-10-11 | Novel PFC inductance and BUCK inductance integrated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311311360.9A CN117423536A (en) | 2023-10-11 | 2023-10-11 | Novel PFC inductance and BUCK inductance integrated structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117423536A true CN117423536A (en) | 2024-01-19 |
Family
ID=89525676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311311360.9A Pending CN117423536A (en) | 2023-10-11 | 2023-10-11 | Novel PFC inductance and BUCK inductance integrated structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117423536A (en) |
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2023
- 2023-10-11 CN CN202311311360.9A patent/CN117423536A/en active Pending
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