Highly integrated transformer for vehicle-mounted electronic control system

Abstract

A highly integrated transformer for an on-board electronic control system relates to the field of transformer technology. The technical solution includes an insulating frame, a magnetic core, windings, and auxiliary components. The insulating frame includes a magnetic core holder and two bases. The magnetic core holder has a center post slot, and the bases have pins. The magnetic core includes a first magnetic core and a second magnetic core, with the center posts of both the first and second magnetic cores inserted into their respective center post slots. The windings include a primary winding and a secondary winding. The auxiliary components include an annular insulating partition and a top cover. The top cover is integrally formed with the annular insulating partition, and the sidewall of the top cover has openings corresponding to the center post slots. The surface of the top cover facing away from the windings is flat. This invention replaces the existing top cover with a top cover and integrally forms the top cover with the annular insulating partition using a single mold, saving mold opening costs. During installation, no additional top cover installation step is required, reducing labor time, improving product reliability, and facilitating automated assembly.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a highly integrated transformer for vehicle-mounted electronic control systems. Background Technology

[0002] New energy vehicles represent the current and future development trend. Vehicle power supply designs utilize a large number of electronic components. To reduce component costs, improve product reliability, and enhance competitiveness, high integration, small size, and high automation have become the main development directions for various electronic component manufacturers. Among these, automated placement processes are widely used. To meet the requirements of automated placement processes, a top cover needs to be glued to the top of the windings of a certain type of highly integrated transformer product, maintaining its flatness. This design necessitates an additional step in production—gluing the top cover—increasing labor time and requiring additional mold costs for the top cover. Utility Model Content

[0003] To address the issues of increased mold-making costs and labor time associated with adding a top cover in existing technical solutions, this utility model provides a highly integrated transformer for vehicle-mounted electronic control systems.

[0004] This utility model provides the following technical solution: a highly integrated transformer for an on-board electronic control system, comprising:

[0005] An insulating frame includes a magnetic core base and two bases respectively disposed on both sides of the magnetic core base. The magnetic core base is provided with a central column slot, and the bases are provided with pins.

[0006] The magnetic core includes a first magnetic core and a second magnetic core connected as a closed magnetic circuit, and the central posts of the first magnetic core and the second magnetic core are both inserted into their respective central post slots;

[0007] The winding includes a primary winding and a secondary winding wound on the magnetic core base;

[0008] The auxiliary components include an annular insulating partition disposed between the magnetic core and the base, and a top cover covering the magnetic core base and the winding. The top cover is integrally formed with the annular insulating partition, and the side wall of the top cover is provided with an opening corresponding to the central column slot. The surface of the top cover facing away from the winding is a plane.

[0009] Preferably, the magnetic core holder is provided with a plurality of partitions in sequence along the length of the central column slot.

[0010] Preferably, the base is provided with a plurality of U-shaped pins, and the base is provided with a winding limiting groove on both sides of each U-shaped pin.

[0011] Preferably, both the first magnetic core and the second magnetic core are EFD type magnetic cores.

[0012] Preferably, the plane is parallel to the annular insulating partition.

[0013] The beneficial effects of this utility model are: replacing the top cover in the prior art with a top cover, and molding the top cover and the annular insulating partition into one piece, using a set of molds to save mold opening costs; no additional installation process of the top cover is required during installation, reducing working hours, improving product reliability, and making it easier to achieve automated assembly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of one embodiment of a transformer.

[0015] Figure 2 This is an exploded schematic diagram of one embodiment of a transformer.

[0016] Figure 3 This is a cross-sectional view of one embodiment of a transformer.

[0017] Reference numerals: 11-Magnetic core holder, 12-Base, 13-Center column slot, 14-Baffle, 15-U-shaped pin, 16-Wounding limiting groove, 21-First magnetic core, 22-Second magnetic core, 31-Annular insulating partition, 32-Top cover, 33-Opening. Detailed Implementation

[0018] The embodiments of this utility model will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement them after reading this specification. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0019] This utility model provides, for example Figure 1-3 The diagram shows a highly integrated transformer for an on-board electronic control system, comprising an insulating frame, a magnetic core, windings, and auxiliary components.

[0020] The insulating frame includes a core holder 11 and two bases 12 respectively disposed on both sides of the core holder 11, all three being integrally formed. The core holder 11 is provided with a central post slot 13 for inserting the magnetic core; multiple partitions 14 are sequentially arranged along the length of the central post slot 13, dividing the core holder 11 into multiple winding slots, in which the winding is wound. The bases 12 have multiple U-shaped pins 15 pre-embedded, and each U-shaped pin 15 is provided with a winding limiting slot 16 on both sides of the base 12, through which the cables at both ends of the winding pass and are electrically connected to the U-shaped pin 15.

[0021] The magnetic core includes a first magnetic core 21 and a second magnetic core 22. In this embodiment, both the first magnetic core 21 and the second magnetic core 22 are of the EFD type. It has a bottom plate, a middle column provided on the bottom plate, and two side columns respectively provided on both sides of the middle column. The bottom plate, the middle column and the two side columns form an E-shaped structure; the first and second magnetic cores are spliced into a rectangular structure with a hole in the middle to form a closed magnetic circuit, and their middle columns are inserted into the corresponding middle column slots 13. In other embodiments, the magnetic core can adopt other forms such as EI and EP according to design requirements.

[0022] The winding includes a primary winding and a secondary winding wound in the winding slots, and the winding method can refer to the related technology.

[0023] The auxiliary parts include an annular insulating partition 31 disposed between the magnetic core and the base 12 and a top cover 32 covering the magnetic core seat 11 and the winding. The top cover 32 and the annular insulating partition 31 are integrally formed and made by using a set of molds, which saves the mold opening cost. The side wall of the top cover 32 is provided with an opening 33 corresponding to the middle column slot 13 to facilitate the insertion of the middle column of the magnetic core. The surface of the top cover 32 facing away from the winding is a plane. Preferably, the plane is parallel to the annular insulating partition 31 to facilitate the automatic mounting operation.

[0024] After winding the winding on the magnetic core seat 11, insert the magnetic core seat 11 and the winding into the inside of the top cover 32 through the central opening of the annular insulating partition 31, and then insert the magnetic core into the middle column slot 13. Compared with the prior art, there is no need to additionally increase the installation process of the top cover, which reduces the working hours, improves the reliability of the product, and is also easier to achieve automated assembly.

[0025] The above are one or more embodiments of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A highly integrated transformer for an on-board electronic control system, characterized in that, include: An insulating frame includes a magnetic core base and two bases respectively disposed on both sides of the magnetic core base. The magnetic core base is provided with a central column slot, and the bases are provided with pins. The magnetic core includes a first magnetic core and a second magnetic core connected as a closed magnetic circuit, and the central posts of the first magnetic core and the second magnetic core are both inserted into their respective central post slots; The winding includes a primary winding and a secondary winding wound on the magnetic core base; The auxiliary components include an annular insulating partition disposed between the magnetic core and the base, and a top cover covering the magnetic core base and the winding. The top cover is integrally formed with the annular insulating partition, and the side wall of the top cover is provided with an opening corresponding to the central column slot. The surface of the top cover facing away from the winding is a plane.

2. The high-integration transformer for a vehicle-mounted electronic control system according to claim 1, characterized in that, The magnetic core holder has multiple partitions arranged sequentially along the length of the central column slot.

3. The high-integration transformer for an on-board electronic control system according to claim 1, characterized in that, The base is provided with multiple U-shaped pins, and the base is provided with winding limiting grooves on both sides of each U-shaped pin.

4. A highly integrated transformer for an on-board electronic control system according to claim 1, characterized in that, Both the first and second magnetic cores are EFD type magnetic cores.

5. A highly integrated transformer for an on-board electronic control system according to claim 1, characterized in that, The plane is parallel to the annular insulating partition.

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