CN-224232459-U - Integrated inductive transformer capable of avoiding magnetic core cracking

CN224232459UCN 224232459 UCN224232459 UCN 224232459UCN-224232459-U

Abstract

The technical scheme comprises a magnetic core, a first base plate, a second base plate and a shared base plate arranged between the first base plate and the second base plate, wherein the first base plate, the second base plate and the shared base plate are formed by bonding two I-shaped magnetic cores, a pair of first magnetic columns are arranged between the first base plate and the shared base plate, a pair of second magnetic columns are arranged between the second base plate and the shared base plate, an air gap gasket is arranged between the second magnetic columns and the second base plate or between the second magnetic columns and the shared base plate, and gaps are respectively arranged between the first magnetic columns and between the second magnetic columns. The bottom plates of the magnetic cores are formed by bonding two I-shaped magnetic cores, are not easy to crack in a high-frequency high-temperature high-stress environment, have long service life, and are integrated with the inductor together and share one bottom plate so as to reduce the occupied area.

Inventors

LUO WENBIN

Assignees

成都金之川电子有限公司

Dates

Publication Date: 20260512
Application Date: 20250325

Claims (3)

1. An integrated inductive transformer for avoiding cracking of a magnetic core, comprising: The magnetic core comprises a first bottom plate, a second bottom plate and a shared bottom plate arranged between the first bottom plate and the second bottom plate, wherein the first bottom plate, the second bottom plate and the shared bottom plate are formed by bonding two I-shaped magnetic cores, a pair of first magnetic columns are arranged between the first bottom plate and the shared bottom plate, a pair of second magnetic columns are arranged between the second bottom plate and the shared bottom plate, and an air gap gasket is arranged between the second magnetic columns and the second bottom plate or between the second magnetic columns and between the second magnetic columns; And the winding comprises a transformer winding wound on the pair of first magnetic columns and an inductance winding wound on the pair of second magnetic columns.
2. The integrated inductive transformer of claim 1, further comprising a base provided with mounting slots for mating with said first base plate, second base plate, and common base plate.
3. The integrated inductive transformer for avoiding cracking of a magnetic core of claim 1, wherein a pair of said first magnetic posts are sleeved with a first armature, said transformer winding is wound on said first armature, a pair of said second magnetic posts are sleeved with a second armature, and said inductive winding is wound on said second armature.

Description

Integrated inductive transformer capable of avoiding magnetic core cracking Technical Field The utility model relates to the technical field of vehicle-mounted chargers, in particular to an integrated inductive transformer capable of avoiding magnetic core cracking. Background In an LC circuit of a traditional vehicle-mounted charger (OBC), an independent transformer and an independent resonant inductor are generally contained, the problems of large occupied area and high cost exist, and a magnetic core is formed by a die and is in the shapes of PQ type, EQ type, EDX type, UU type and the like, so that the magnetic core is at risk of cracking in a high-frequency high-temperature high-stress environment. Disclosure of utility model Aiming at the problems of large occupied area, easy cracking of a magnetic core and the like of a transformer and a resonance inductor in the prior art, the utility model provides an integrated inductance transformer for avoiding the cracking of the magnetic core. The utility model provides a technical scheme that an integrated inductive transformer capable of avoiding magnetic core cracking comprises: The magnetic core comprises a first bottom plate, a second bottom plate and a shared bottom plate arranged between the first bottom plate and the second bottom plate, wherein the first bottom plate, the second bottom plate and the shared bottom plate are formed by bonding two I-shaped magnetic cores, a pair of first magnetic columns are arranged between the first bottom plate and the shared bottom plate, a pair of second magnetic columns are arranged between the second bottom plate and the shared bottom plate, and an air gap gasket is arranged between the second magnetic columns and the second bottom plate or between the second magnetic columns and between the second magnetic columns; And the winding comprises a transformer winding wound on the pair of first magnetic columns and an inductance winding wound on the pair of second magnetic columns. Preferably, the device further comprises a base, wherein the base is provided with a mounting groove matched with the first bottom plate, the second bottom plate and the shared bottom plate. Preferably, a pair of first magnetic columns are sleeved with a first framework, the transformer winding is wound on the first framework, a pair of second magnetic columns are sleeved with a second framework, and the inductance winding is wound on the second framework. The transformer has the beneficial effects that the 3 bottom plates of the magnetic cores are formed by bonding two I-shaped magnetic cores, the transformer is not easy to crack in a high-frequency high-temperature high-stress environment and has long service life, and the transformer and the inductor are integrated together and share one bottom plate so as to reduce the occupied area. Drawings Fig. 1 is a three-dimensional view of one embodiment of an integrated inductive transformer. Fig. 2 is a three-dimensional view of one embodiment of a magnetic core. The device comprises the following components of 11, a first bottom plate, 12, a second bottom plate, 13, a shared bottom plate, 14, a first magnetic column, 15, a second magnetic column, 16, an air gap gasket, 20, an I-shaped magnetic core, 31, a transformer winding, 32, an inductance winding, 40, a base, 41, a mounting groove, 51, a first framework, 52 and a second framework. Detailed Description Embodiments of the present utility model will be described in more detail below with reference to the drawings and reference numerals, so that those skilled in the art can practice the present utility model after studying the specification. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. The present utility model provides an integrated inductive transformer as shown in fig. 1-2 that avoids core cracking, comprising a base 40, a core disposed on the base 40, and windings. The magnetic core comprises a first bottom plate 11, a second bottom plate 12 and a shared bottom plate 13 arranged between the first bottom plate 11 and the second bottom plate 12, wherein the first bottom plate 11, the second bottom plate 12 and the shared bottom plate 13 are formed by bonding two I-shaped magnetic cores 20, the structure is simple, the cracking is not easy to occur in a high-frequency high-temperature high-stress environment, and the service life is long. A pair of first magnetic columns 14 are arranged between the first base plate 11 and the shared base plate 13, a closed magnetic circuit is formed between the first magnetic columns and the first base plate 11 and the shared base plate 13, a large gap is formed between the pair of first magnetic columns 14, a first framework 51 is sleeved on each pair of first magnetic columns 14, a transformer winding 31 is wound on each first framework 51, the transformer winding 31 comprises a prim