CN218241544U

CN218241544U - Shell-free transformer framework

Info

Publication number: CN218241544U
Application number: CN202221963804.8U
Authority: CN
Inventors: 范文明
Original assignee: Shandong Hesong Electronic Technology Co ltd
Current assignee: Shandong Hesong Electronic Technology Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-01-06
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a no shell's transformer skeleton, including coil portion, the bottom plate that is located coil portion both ends and the stitch seat that is located the bottom plate lower surface. The coil part is of a hollow cylinder structure and is used for winding a coil and accommodating a magnetic core; the pin base is provided with an L-shaped pin which is used for connecting with the coil and connecting with the electric plug-in mounting; the isolation between L type stitch and the magnetic core can be realized to the bottom plate, and the bottom plate has increased length along X direction and Y direction, can further increase the safe distance between L type stitch and the magnetic core. In addition, the bending mode of the L-shaped pin is changed from the traditional mode of vertically inserting and horizontally pulling into the mode of horizontally inserting and vertically pulling, so that the L-shaped pin does not penetrate through the framework bottom plate in the vertical direction.

Description

Shell-free transformer framework

Technical Field

The application relates to the field of transformers, in particular to a shell-free transformer framework.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core (magnetic core), and the transformer has the main functions of: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. The transformer is almost used in all electronic products, the principle is simple, and the application range is very wide. With the development of industrialization and science and technology, higher and higher requirements are put on the transformer.

The L-shaped stitch part of the transformer framework of the traditional transformer is exposed and lacks an isolating device between the L-shaped stitch part and the magnetic core, so that an isolating plate is provided for the L-shaped stitch part and the magnetic core of the transformer framework through installing an injection molding part shell on the transformer framework, and the safe distance is met. With the increase of the material cost of injection molding parts, a transformer framework which is free of an injection molding part shell and simple in process is urgently needed, the safe distance can be met, and the cost can be reduced.

Disclosure of Invention

The application aims to provide a no shell transformer skeleton, can satisfy safe distance, again can reduce cost.

The embodiment of the application can be realized by the following technical scheme:

a kind of transformer skeleton without outer cover, including coil part, base plate located at both ends of the said coil part and stitch seat located on the lower surface of the said base plate;

the stitch seat comprises a plurality of winding posts positioned at the bottom of the stitch seat, L-shaped stitches are arranged on the winding posts, one end of each L-shaped stitch penetrates through the outer side surface of each winding post, the other end of each L-shaped stitch penetrates through the bottom of the bottom plate, and the L-shaped stitches are bent in a mode of being inserted along the outer side surface of each winding post and being pulled out along a direction which is vertical to and far away from the bottom plate;

the length of the base plate along the Y direction meets the requirement of the distance between a winding and a transformer magnetic core, which is required by corresponding safety regulations, and the length of the base plate along the X direction is slightly larger than that of the coil part along the X direction.

Furthermore, the stitch seat also comprises a wire passing groove formed between the adjacent winding posts.

Furthermore, the stitch seat further comprises a positioning plate, and the positioning plates are arranged at the two ends of the bottom plate in a downward protruding mode on the winding posts.

Furthermore, the coil part is of a hollow cylinder structure and comprises a winding column for winding and baffles positioned at two ends of the winding column, and the baffles are provided with through holes matched with openings at two ends of the winding column.

Furthermore, it is similar "cuboid" structure to wind the post, the arris department along the Y direction has seted up the fillet around the post.

Further, the number of the wire passing grooves is one less than that of the winding columns.

The transformer framework without the shell provided by the embodiment of the application has the following beneficial effects:

the utility model can realize the isolation between the L-shaped stitch and the magnetic core by arranging the bottom plates at the two ends of the coil part; moreover, the length of the bottom plate is increased along the X direction and the Y direction, and the separation distance between the L-shaped pin and the magnetic core can be further increased. In addition, the change of the bending mode of the L-shaped stitch can ensure that the stitch does not penetrate through the framework bottom plate in the vertical direction. Through the arrangement, the method for realizing the isolation effect on the injection molding shell on the transformer framework can replace the traditional method for installing the injection molding shell on the transformer framework, not only the safety distance is met, but also the cost is reduced, and the process is simple.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is another perspective view of the preferred embodiment of the present invention;

fig. 3 is a top view of the preferred embodiment of the present invention.

Reference numerals in the figures

1. A coil part 11, a winding post 12, a baffle plate;

2. a base plate;

3. a stitch seat 31, an L-shaped stitch 32, a winding post 33, a thread passing groove 34 and a positioning plate.

Detailed Description

Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

In addition, for convenience of understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this is not intended to limit the scope of the present application.

Singular references also include plural references and vice versa.

In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the application is used, the description is only for convenience of describing the application and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, the limitation of the application is not understood. Moreover, the terms first, second, etc. may be used in the description to distinguish between various elements, but these should not be limited by the order of manufacture or by importance to be understood as indicating or implying any particular importance, such as may be found in various claims.

The terminology used in the description is for the purpose of describing the embodiments of the application and is not intended to be limiting of the application. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or interconnected between two elements. Those skilled in the art will specifically understand what is specifically meant by the term "in the present application.

Examples

As shown in fig. 1 to 3, the specific structure of the preferred embodiment of the present invention, which is observed from different angles, includes a coil part 1, a bottom plate 2 located at two ends of the coil part 1, and a needle base 3 located on the lower surface of the bottom plate 2.

The coil part 1 comprises a winding post 11 and baffles 12 positioned at two ends of the winding post 11, and the coil part 1 is of a hollow cylinder structure and is used for accommodating a magnetic core. The surface of the winding post 11 is used for winding coils, the baffle 12 can enable the coils to be wound in order, and the baffle 12 is provided with through holes matched with openings at two ends of the winding post 11 and capable of allowing the magnetic cores to pass through. In this embodiment, the winding column 11 is of a structure similar to a cuboid, and rounded corners are arranged at the edges along the Y direction, so that the abrasion of the coil can be reduced, and the service life can be prolonged. It is conceivable that the winding post 11 may be provided in the shape of a cylinder or the like as long as the magnetic core can be accommodated.

The bottom plate 2 is positioned at one side of the two baffle plates 12 far away from the winding column 11, and the stitch bases 3 on the lower surface of the bottom plate 2 are provided with L-shaped stitches 31. The length of the bottom plate 2 along the Y direction meets the requirement of the distance between a winding and a transformer magnetic core of a corresponding safety requirement, the length of the bottom plate 2 along the X direction is slightly larger than that of the coil part 1 along the X direction, the bottom plate 2 can form a separation plate between the magnetic core and the L-shaped pin 31, and the separation distance between the magnetic core and the L-shaped pin 31 can be further increased by lengthening the length of the bottom plate 2 along the X direction and the length of the Y direction. The mode of bending of traditional transformer L type stitch 31 is for vertical the level of inserting to dial out, and the utility model discloses a mode of bending of L type stitch 31 is for inserting along 32 lateral surfaces of wrapping post, dials out along the perpendicular direction of just keeping away from bottom plate 2, and the change of the mode of bending of L type stitch 31 can be so that the stitch does not pierce through skeleton bottom plate 2 in vertical direction.

The stitch base 3 includes a plurality of winding posts 32, and the winding posts 32 are provided with needle grooves for accommodating the L-shaped stitches 31. One end of an L-shaped pin 31 penetrates through the outer side surface of the winding post 32, the end is used for being connected with a coil, the other end penetrates through the bottom of the bottom plate 2, and the end is used for being inserted with a metal pin for electrical connection. The adjacent winding posts 32 are formed with wire passing slots 33, and the number of the wire passing slots 33 is one less than that of the winding posts 32. The stitch base 3 further comprises a positioning plate 34, and the winding posts 32 at two ends of the bottom surface of the bottom plate 2 are both provided with the positioning plate 34 in a downward protruding manner for positioning the electrical connection of the transformer.

While the present invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof as defined in the appended claims.

Claims

1. A no shell's transformer skeleton which characterized in that:

comprises a coil part (1), a bottom plate (2) positioned at two ends of the coil part (1) and a stitch seat (3) positioned on the lower surface of the bottom plate (2);

the stitch seat (3) comprises a plurality of winding posts (32) positioned at the bottom of the stitch seat (3), L-shaped stitches (31) are installed on the winding posts (32), one end of each L-shaped stitch (31) penetrates through the outer side surface of each winding post (32), the other end of each L-shaped stitch (31) penetrates through the bottom of the bottom plate (2), and the L-shaped stitches (31) are bent in a mode of being inserted along the outer side surfaces of the winding posts (32) and being pulled out along a direction which is vertical to and far away from the bottom plate (2);

the length of the bottom plate (2) along the Y direction meets the requirement of the distance between a winding and a transformer magnetic core of a corresponding safety requirement, and the length of the bottom plate (2) along the X direction is slightly larger than that of the coil part (1) along the X direction.

2. The shelled transformer bobbin of claim 1, wherein:

the stitch seat (3) also comprises a wire passing groove (33) formed between the adjacent winding posts (32).

3. The shelled transformer bobbin of claim 1, wherein:

the stitch seat (3) further comprises positioning plates (34), and the positioning plates (34) are arranged at the winding posts (32) at the two ends of the bottom plate (2) in a downward protruding mode.

4. The shelled transformer bobbin of claim 2, characterized in that:

the coil part (1) is of a hollow cylinder structure, the coil part (1) comprises a winding column (11) used for winding and baffles (12) located at two ends of the winding column (11), and the baffles (12) are provided with through holes matched with openings at two ends of the winding column (11).

5. The shelled transformer skeleton of claim 4, characterized in that:

the winding column (11) is of a structure similar to a cuboid, and rounded corners are formed at the edges of the winding column (11) along the Y direction.

6. The shelled transformer skeleton of claim 4, characterized in that:

the number of the wire passing grooves (33) is one less than that of the winding posts (32).