Search

CN-224232472-U - Inductance structure and power factor corrector comprising same

CN224232472UCN 224232472 UCN224232472 UCN 224232472UCN-224232472-U

Abstract

The application provides an inductance structure and a power factor corrector comprising the same, wherein the inductance structure comprises a magnetic core assembly, a skeleton assembly, a flat wire coil, a skeleton male component and a skeleton female component, wherein the magnetic core assembly comprises a magnetic core male component and a magnetic core female component which are matched with each other, the skeleton assembly comprises a skeleton male component and a skeleton female component which are matched with each other, the flat wire coil is pre-wound and is wound into a ring shape, the skeleton male component is mounted to one of the magnetic core male component and the magnetic core female component, the skeleton female component is mounted to the other of the magnetic core male component and the magnetic core female component, and when the skeleton male component and the skeleton female component are assembled together, the skeleton assembly penetrates through the annular flat wire coil. By the above configuration, the operation of winding the flat wire coil in advance before assembling the bobbin assembly is realized, and the degree of prefabrication of each assembly of the inductance structure is improved, thereby improving the overall manufacturing efficiency.

Inventors

  • WU DAN
  • Wu Yuansi

Assignees

  • 深圳思能动力科技有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (10)

  1. 1. An inductor structure, comprising: a magnetic core assembly (100) comprising a magnetic core male member (101) and a magnetic core female member (102) that mate with each other; a skeleton assembly (200) comprising a skeleton male member (201) and a skeleton female member (202) mated with each other; A flat wire coil (300) that is pre-wound and wound in a loop shape; The skeleton male member (201) is mounted to one of the core male member (101) and the core female member (102), the skeleton female member (202) is mounted to the other of the core male member (101) and the core female member (102), and the skeleton assembly (200) passes through the annular flat wire coil (300) when the skeleton male member (201) and the skeleton female member (202) are assembled together.
  2. 2. The inductive structure of claim 1, further comprising a base (400), wherein said core assembly (100), said bobbin assembly (200), and said flat wire coil (300) are all disposed on said base (400).
  3. 3. The inductor structure of claim 2, wherein the flat wire coil (300) has a first connection end (301) and a second connection end (302), the base (400) includes a first through slot (401) and a second through slot (402), the first through slot (401) allowing the first connection end (301) to pass therethrough, and the second through slot (402) allowing the second connection end (302) to pass therethrough.
  4. 4. The inductance structure according to claim 1, wherein the flat wire coil (300) employs a pancake shaped multi-layer coil in which annular flat wire coils (300) are axially arranged in two pancake shaped wires, each pancake wire having the same number of layers.
  5. 5. The inductor structure of claim 4, wherein the flat wire coil (300) is wound using an automated winding process.
  6. 6. The inductance structure of claim 1, wherein said core male member (101) includes a linearly protruding core (103), and said core female member (102) includes a receiving portion for receiving a distal section of said core (103).
  7. 7. The inductor structure of claim 6, wherein the backbone male member (201) comprises a first hollow sleeve (203) that protrudes linearly, and the backbone female member (202) comprises a second hollow sleeve (204) that protrudes linearly, the first hollow sleeve (203) being detachably connected with the second hollow sleeve (204).
  8. 8. The inductance structure of claim 7, wherein the first hollow sleeve (203) and the second hollow sleeve (204) each have an inner diameter larger than a diameter of the magnetic core (103).
  9. 9. The inductance structure of claim 7, wherein an outer diameter of each of the first hollow sleeve (203) and the second hollow sleeve (204) is smaller than an inner diameter of the annular flat wire coil (300).
  10. 10. A power factor corrector, characterized by comprising an inductive structure according to any of claims 1-9.

Description

Inductance structure and power factor corrector comprising same Technical Field The application relates to the technical field of electronic components, in particular to an inductance structure and a power factor corrector (Power Factor Correction, PFC) comprising the inductance structure. Background The current power electronic equipment has increasingly strict requirements on the performance of components, and with the social development, the power electronic equipment has increasingly integrated and miniaturized requirements, and these real requirements greatly promote the development of the components, and simultaneously, challenges are brought to the manufacturing industry of the components, namely the high-frequency transformer/inductor. In particular, for PFC in high current applications, a relatively large wire diameter is required to meet the requirement of high current passing during manufacturing, and meanwhile, the power electronic device has a certain degree of volume requirement and safety specification requirement on PFC. According to the existing inductance structure using the annular magnetic core and double-line parallel winding, on one hand, the production efficiency cannot be improved by utilizing an automatic winding process, and on the other hand, the space utilization rate of double-line parallel winding cannot meet the requirement of power electronic equipment on the whole size of the inductance structure. Generally, when a circular-section wire is wound around a toroidal core, a gap is necessarily present therebetween, and the filling factor is expected to be only 40% -50%, and the space utilization is relatively low. Chinese patent CN210896933U discloses an inductor comprising a base, a magnetic core set, a bobbin, and a coil, wherein the coil is formed by winding round wire or flat wire or stranded wire. However, the bobbin is provided with flanges at both ends thereof, which results in a step of not pre-winding the coil before assembly and then fitting over the outer circumferential surface of the bobbin, reducing the degree of prefabrication of the constituent members of the inductor. Chinese patent application CN118263003a discloses an integrated magnetic component comprising a magnetic core, a main coil and a magnetic coil, wherein the coil winding mode comprises an automatic flat wire vertical winding mode. However, the coil is still wound around the center post/side post instead of being wound around in advance and then being fitted around the outer peripheral surface of the center post/side post, which also reduces the degree of prefabrication of the constituent members of the integrated magnetic element. Disclosure of utility model The application provides an inductance structure and a power factor corrector comprising the same, which are used for solving the defect that a coil pre-wound by a flat wire is inconvenient to assemble in the prior art, and realizing the inductance structure and PFC, wherein the inductance structure has high filling coefficient and is suitable for the coil pre-wound by an automatic winding process. According to a first aspect of the present application, there is provided an inductor structure comprising: a core assembly including a core male member and a core female member mated with each other; a backbone assembly comprising a backbone male member and a backbone female member mated with each other; A flat wire coil which is pre-wound and wound in a ring shape; The bobbin male member is mounted to one of the core male member and the core female member, and the bobbin female member is mounted to the other of the core male member and the core female member, and the bobbin assembly passes through the annular flat wire coil when the bobbin male member and the bobbin female member are assembled together. According to the inductance structure provided by the application, the inductance structure further comprises a base, and the magnetic core assembly, the framework assembly and the flat wire coil are all arranged on the base. According to the inductance structure provided by the application, the flat wire coil is provided with the first connecting end and the second connecting end, the base comprises the first through groove and the second through groove, the first through groove is used for allowing the first connecting end to pass through the first through groove, and the second through groove is used for allowing the second connecting end to pass through the second through groove. According to the inductance structure provided by the application, the pancake-shaped multilayer coil is adopted for the flat wire coil, wherein the annular flat wire coil is axially arranged into two wire cakes, and the number of layers of each wire cake is the same. According to the inductance structure provided by the application, the flat wire coil is wound by adopting an automatic winding process. According to one inductor structure provided by the application, the