Sunken transformer

Abstract

A sinking type transformer comprises a magnetic core, a framework, a self-adhesion silk-covered wire, epoxy glue, an insulating rubber tape and a bent pin, the magnetic core is connected with the framework, the self-adhesion silk-covered wire is connected with the framework, the epoxy glue is arranged at the joint of the magnetic core and the framework, the insulating rubber tape is connected with the self-adhesion silk-covered wire, and the bent pin is connected with the side end of the framework. The framework comprises a PIN seat, a hollow circle, a framework body and a limiting groove. Compared with the prior art, the framework adopts a single-groove design, and a winding window is effectively utilized; due to the secondary bending pin design, the height of the product is greatly reduced, and meanwhile, the product can be stably fixed with the PCB; the magnetic core structure is redesigned, the sectional area needed by the product is guaranteed, meanwhile, the height of the product can be greatly reduced, and miniaturization of the product is achieved.

Description

Technical Field

[0001] This utility model relates to the field of transformers, specifically to a submerged transformer. Background Technology

[0002] The thickness of the switching power supply used in a television set is a key component affecting the overall thickness of the set. Reducing the installation height of the transformer in the power supply is necessary to reduce the height of the entire power board, thereby achieving an ultra-thin design while keeping costs low. Currently, the conventional frame structure is a direct-plug type (such as...). Figure 5 As shown), most methods for reducing transformer height involve using an SMD (Surface Mount Device) frame mounting structure (such as...). Figure 6 (As shown), but this structure still cannot meet the requirements for the overall thickness of the machine. Moreover, the processing cost of this type of SMD transformer is also high, resulting in a relatively high total cost for the transformer. In addition, the overall installation cost is also high, making it difficult to achieve widespread market adoption. In summary, what is currently needed is a low-cost transformer that can achieve a recessed design.

[0003] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0004] The purpose of this invention is to provide a submerged transformer to overcome the aforementioned shortcomings and deficiencies of the prior art.

[0005] A submerged transformer includes: a magnetic core, a frame, self-adhesive wire wrapping, epoxy resin, insulating tape, and bending pins. The magnetic core is connected to the frame, the self-adhesive wire wrapping is connected to the frame, the epoxy resin is disposed at the connection between the magnetic core and the frame, the insulating tape is connected to the self-adhesive wire wrapping, and the bending pins are connected to the side end of the frame.

[0006] The skeleton includes: a PIN seat, a hollow circle, a skeleton body, and a limiting groove. The PIN seat is connected to the skeleton body, the skeleton body is symmetrically arranged on both sides of the hollow circle, and the upper end of the skeleton body is provided with a limiting groove.

[0007] Furthermore, the bending pin has a zigzag structure, comprising a first segment, a second segment, a third segment, and a fourth segment. One end of the first segment is connected to the skeleton, the other end of the first segment is obliquely connected to one end of the second segment, the other end of the second segment is horizontally connected to one end of the third segment, and the other end of the third segment is vertically connected to one end of the fourth segment. The third segment is connected to the PCB board during use.

[0008] Furthermore, the outer frame of the magnetic core has a U-shaped structure, the inner walls on both sides of the outer frame have an arc-shaped structure, and the middle section of the magnetic core has a cylindrical structure.

[0009] The beneficial effects of this utility model are:

[0010] Compared with traditional technologies, this utility model adopts a single-slot design for the skeleton, which effectively utilizes the winding window; the double-bending pin design greatly reduces the product height while ensuring stable fixation with the PCB; the magnetic core structure has been redesigned to ensure the required cross-sectional area of ​​the product while greatly reducing the product height, thus achieving product miniaturization. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a side view of the present invention.

[0013] Figure 3 This is an exploded view of part of the structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0015] Figure 5 This is a schematic diagram of a traditional skeleton structure.

[0016] Figure 6 This is a schematic diagram of the traditional SMD frame mounting structure.

[0017] Figure label:

[0018] Magnetic core 100, outer frame 110, inner wall 120 and middle section 130.

[0019] The frame 200, PIN seat 210, hollow circle 220, frame body 230 and limiting groove 240.

[0020] Self-adhesive wire wrapping 300, epoxy adhesive 400, insulating tape 500, bending pins 600, first section 610, second section 620, third section 630 and fourth section 640. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0022] Example 1

[0023] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a side view of the present invention. Figure 3 This is an exploded view of part of the structure of this utility model. Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0024] Figure 5 This is a schematic diagram of a traditional skeleton structure. Figure 6 This is a schematic diagram of the traditional SMD frame mounting structure.

[0025] like Figure 1-4 As shown, a submerged transformer includes: a magnetic core 100, a frame 200, a self-adhesive wire-wrapped part 300, epoxy resin 400, insulating tape 500, and bending pins 600. The magnetic core 100 is connected to the frame 200, the self-adhesive wire-wrapped part 300 is connected to the frame 200, the epoxy resin 400 is disposed at the connection between the magnetic core 100 and the frame 200, the insulating tape 500 is connected to the self-adhesive wire-wrapped part 300, and the bending pins 600 are connected to the side end of the frame 200.

[0026] The skeleton 200 includes: PIN seat 210, hollow circle 220, skeleton body 230 and limiting groove 240. PIN seat 210 is connected to skeleton body 230. Skeleton body 230 is symmetrically arranged on both sides of hollow circle 220. Limiting groove 240 is provided at the upper end of skeleton body 230.

[0027] The bending pin 600 has a zigzag structure and includes: a first segment 610, a second segment 620, a third segment 630, and a fourth segment 640. One end of the first segment 610 is connected to the skeleton 200, the other end of the first segment 610 is obliquely connected to one end of the second segment 620, the other end of the second segment 620 is horizontally connected to one end of the third segment 630, and the other end of the third segment 630 is vertically connected to one end of the fourth segment 640. The third segment 630 is connected to the PCB board during use.

[0028] The outer frame 110 of the magnetic core 100 has a U-shaped structure, the inner walls 120 on both sides of the outer frame 110 have an arc-shaped structure, and the middle section 130 of the magnetic core 100 has a cylindrical structure.

[0029] The innovation of this utility model is reflected in:

[0030] The frame has been improved: Compared to traditional frame structures, the self-adhesive wire wrapping 300 is confined by the limiting groove 240 on the hollow circle 220. The cylindrical structure of the hollow circle 220 has a smaller perimeter than a square structure, thus resulting in lower costs. For the effective volume of the magnetic core, the cylindrical structure improves the utilization rate of the core's effective volume because the circle can better fill the space, reducing gaps and requiring a lower minimum number of turns. Due to structural optimization, the cylindrical design reduces the minimum number of coil turns required, thereby improving transformer efficiency. Simultaneously, this single-slot structure offers higher overall space utilization than traditional frame structures.

[0031] The magnetic core has been improved. Compared to the traditional E-shaped magnetic core, the core structure of this invention has been comprehensively improved. The outer frame structure is similar to that of an E-shaped magnetic core, but unlike the planar inner wall structure on both sides of the outer frame of an E-shaped magnetic core, the inner walls on both sides of the outer frame of the magnetic core 100 of this invention have an arc-shaped structure; and unlike the rectangular structure of the middle section of an E-shaped magnetic core, the middle section of the magnetic core 100 of this invention has a cylindrical structure. The purpose of these improvements is primarily to ensure the required cross-sectional area: cross-sectional area and magnetic properties: the cross-sectional area of ​​the magnetic core directly affects its magnetic properties, especially its magnetic flux transmission capacity. The magnetic core of this invention maintains the required cross-sectional area without increasing the overall volume by optimizing its geometry. This may be achieved by distributing the cross-sectional area in a more efficient shape, using an arc-shaped design to evenly distribute the magnetic flux, allowing the magnetic core to achieve the required magnetic flux density in a smaller cross-section. The advantages of a cylindrical center column: Compared to traditional E-shaped magnetic cores, the magnetic core of this invention can utilize materials more effectively through the cylindrical center column, resulting in higher cross-sectional area utilization and reducing unnecessary material waste. On the other hand, it reduces product height: The magnetic core of this invention, through its arc-shaped inner wall and cylindrical center column design, is more compact in the vertical direction. This design reduces the height of the magnetic core because more efficient flux management means no additional height is needed to compensate for leakage flux and edge effects. Efficient flux path: The arc and cylindrical design optimizes the flux path, allowing the magnetic core to maintain efficient flux transmission within a shorter height. This optimization reduces the height requirement of the magnetic core while maintaining the required magnetic properties.

[0032] Finally, the bent pin 600 has a zigzag structure. By using a side-insertion double-bending pin method, the product height is greatly reduced, and the final product height can meet the requirement of <10.5mm (height reduction of 20%).

[0033] Compared with traditional technologies, this utility model adopts a single-slot design for the skeleton, which effectively utilizes the winding window; the double-bending pin design greatly reduces the product height while ensuring stable fixation with the PCB; the magnetic core structure has been redesigned to ensure the required cross-sectional area of ​​the product while greatly reducing the product height, thus achieving product miniaturization.

[0034] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. A submerged transformer, characterized in that, include: The magnetic core (100), the skeleton (200), the self-adhesive wire (300), the epoxy resin (400), the insulating tape (500), and the bending pin (600) are connected. The magnetic core (100) is connected to the skeleton (200), the self-adhesive wire (300) is connected to the skeleton (200), the epoxy resin (400) is disposed at the connection between the magnetic core (100) and the skeleton (200), the insulating tape (500) is connected to the self-adhesive wire (300), and the bending pin (600) is connected to the side end of the skeleton (200). The skeleton (200) includes: a PIN seat (210), a hollow circle (220), a skeleton body (230), and a limiting groove (240). The PIN seat (210) is connected to the skeleton body (230). The skeleton body (230) is symmetrically arranged on both sides of the hollow circle (220). The upper end of the skeleton body (230) is provided with a limiting groove (240).

2. A submerged transformer according to claim 1, characterized in that, The bending pin (600) has a zigzag structure and includes a first segment (610), a second segment (620), a third segment (630), and a fourth segment (640). One end of the first segment (610) is connected to the skeleton (200), the other end of the first segment (610) is obliquely connected to one end of the second segment (620), the other end of the second segment (620) is horizontally connected to one end of the third segment (630), and the other end of the third segment (630) is vertically connected to one end of the fourth segment (640). The third segment (630) is connected to the PCB board during use.

3. A submerged transformer according to claim 1, characterized in that, The outer frame (110) of the magnetic core (100) has a U-shaped structure, the inner walls (120) on both sides of the outer frame (110) have an arc-shaped structure, and the middle section (130) of the magnetic core (100) has a cylindrical structure.

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