Transformer copper coil framework convenient to assemble

Abstract

The utility model relates to a transformer copper coil framework, belongs to the technical field of transformers, and particularly relates to a transformer copper coil framework convenient to assemble, which comprises a coil framework main body, an upper limiting plate, a lower limiting plate, a butt joint accessory, a limiting block and an insulating wire slot isolating ring, modularized splicing of the framework is achieved through a pluggable structure of the concave connecting blocks and the clamping blocks on the side edges of the upper limiting plate and the lower limiting plate, and the framework can be rapidly assembled or disassembled without tools. The pins at the bottom of the lower limiting plate and the reinforcing assembly on the front side form a double-fixing structure, and the installation stability is improved. By means of the collaborative design of modular splicing and layered winding guiding, efficient assembling and accurate winding are achieved, the technical problems that a traditional framework is poor in expansibility, low in winding consistency and insufficient in assembling efficiency are solved, and the framework meets the development requirements for miniaturization and high power density of power electronic equipment.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a transformer copper coil bobbin that is easy to assemble. Background Technology

[0002] This utility model relates to the field of transformer manufacturing technology, specifically to a transformer copper coil bobbin that is easy to assemble. As power electronic equipment develops towards miniaturization and high power density, transformers, as core components, place higher demands on the assembly efficiency and winding precision of their coil windings.

[0003] A search of Chinese patent CN219226070U reveals a copper coil frame comprising two parallel first splicing plates and two parallel second splicing plates, with first protrusions on both sides of the first splicing plates. While this patent achieves basic winding functionality, it has significant drawbacks:

[0004] Poor modular scalability: The number of winding layers is fixed, and different specifications of bobbins need to be customized, making it difficult to adapt to the flexible production needs of transformers with multiple voltage levels;

[0005] Insufficient winding consistency: The lack of a precise guiding structure makes the copper wire prone to interlayer misalignment, resulting in uneven winding density or inter-turn short circuits;

[0006] Assembly efficiency is low: screws need to be tightened one by one, and it is time-consuming and labor-intensive to assemble multiple sets of frames, making it difficult to improve the production cycle.

[0007] Based on the above research and existing technology, it was found that the core problem with existing transformer coil frames lies in the contradiction between modular assembly capability and winding precision. While traditional rigid connection methods can ensure structural strength, they sacrifice production flexibility; while flexible winding processes are easy to adjust, they struggle to guarantee winding consistency and reliability. The innovation of this invention lies in the synergistic design of a modular splicing structure and a layered winding guide structure, which improves assembly efficiency while achieving precise winding control, fundamentally solving the aforementioned technical bottleneck. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model proposes a transformer copper coil frame that is easy to assemble. The frame is modularly spliced ​​through the plug-in structure of the concave connecting blocks and the locking blocks on the sides of the upper and lower limiting plates, which can be quickly assembled or disassembled without tools.

[0009] The technical solution to achieve the purpose of this utility model is: a transformer copper coil frame that is easy to assemble, including a coil frame body, wherein an upper limit plate and a lower limit plate are symmetrically connected to the upper and lower ends of the coil frame body, and further comprising;

[0010] A docking fitting is fixedly connected to the side of the upper limit plate and the lower limit plate on the same side.

[0011] The limiting block is fixedly connected to the side of the upper and lower limiting plates on the other side. The two adjacent coil frame bodies are detachably connected to the limiting block by a plug-in connection between the fittings and the limiting block.

[0012] The docking accessories include a concave connecting block installed on the side of the upper limit plate and the lower limit plate, a docking post installed at the bottom of the groove of the connecting block, and a locking block installed on the side of the adjacent upper limit plate and the lower limit plate. The locking block is adapted to the size of the groove of the connecting block, and the upper and lower surfaces of the locking block are provided with a slot adapted to the docking post.

[0013] The outer cylinder of the coil frame body is fitted with limit ring assemblies at equal intervals from top to bottom.

[0014] In some embodiments, the limiting ring assembly includes a grooved isolation ring in the shape of a U-shape, with connecting holes extending through the middle areas of all four sides of the grooved isolation ring.

[0015] In some embodiments, each of the slot isolation rings is made of an insulating material.

[0016] In some embodiments, the bottom of the lower limiting plate is equipped with two rows of pins.

[0017] In some embodiments, the upper limit plate has protective anti-slip textures on both sides away from the docking accessory and the limit block.

[0018] In some embodiments, a reinforcing component is provided on the front side of both the upper limit plate and the lower limit plate. The reinforcing component includes a mounting block fixed to the front side of the coil frame body, and bolts are threaded onto the mounting block.

[0019] Compared with existing technologies, the significant advantages of this invention are:

[0020] Firstly, this utility model achieves rapid assembly and precise winding through the coordinated design of a modular splicing structure and a layered winding guide structure. The upper and lower limit plates are respectively equipped with concave connecting blocks and matching locking blocks on their sides. Through the insertion and extraction of the mating posts and the locking slots, mechanical locking can be achieved without tools when adjacent coil bobbin bodies are vertically or horizontally aligned. Compared to traditional welding or screw fixing methods, this simplifies the assembly process of multi-winding transformers and allows for flexible expansion of the number of coil bobbins that can be stacked.

[0021] The coil bobbin body has equally spaced slotted isolation rings on its outer cylindrical surface, which, through connecting holes around its perimeter, provide layered positioning and guidance for the copper wire. During operation, the copper wire can pass vertically between adjacent isolation rings along the connecting holes, forming a layered and uniform winding layout. This avoids the risk of short circuits caused by interlayer misalignment in traditional winding, while also improving the uniformity of winding density.

[0022] Secondly, this utility model significantly improves installation stability and seismic performance through electromechanical integration reinforcement design. The two rows of parallel pins at the bottom of the lower limit plate enhance the welding contact area with the circuit board through a double-row symmetrical layout, serving as both an electrical conduction path and dispersing mechanical stress, preventing the problem of easy bending of single-row pins. The reinforcement component (mounting block + bolt) on the front side of the coil frame body fixes the frame body to the circuit board a second time through bolts, forming multi-point mechanical anchoring, effectively suppressing displacement and loosening under vibration environment, and is especially suitable for high-power or mobile device scenarios. Attached Figure Description

[0023] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a three-dimensional structural diagram of the installation of the transformer copper coil frame provided in one embodiment of the present invention;

[0025] Figure 2 This is a front view of the transformer copper coil frame provided in one embodiment of the present invention during installation;

[0026] Figure 3 This is a half-sectional schematic diagram of the transformer copper coil skeleton provided in one embodiment of the present invention;

[0027] Figure 4 This is a bottom view of the transformer copper coil skeleton provided in one embodiment of the present invention;

[0028] Figure 5 This is a front view of a transformer copper coil frame provided in one embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the reinforcement component provided in one embodiment of the present invention installed on the front side of the transformer copper coil frame.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Coil frame body; 2. Upper limit plate; 201. Anti-slip texture; 3. Lower limit plate; 4. Connecting block; 401. Docking post; 5. Locking block; 501. Locking groove; 6. Wire groove isolation ring; 601. Connecting hole; 8. Pin; 9. Mounting block; 901. Bolt. Detailed Implementation

[0032] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0033] This utility model provides an improved transformer copper coil frame that is easy to assemble. The technical solution of this utility model is as follows:

[0034] Figures 1-6 The preferred embodiment of this utility model is described below in conjunction with the accompanying drawings. Figures 1-6 The present invention will be further described below.

[0035] like Figure 1 - Figure 6 As shown, a transformer copper coil frame that is easy to assemble includes a coil frame body 1, with an upper limit plate 2 and a lower limit plate 3 symmetrically connected to its upper and lower ends. It also includes a docking fitting, which is fixedly connected to the side of the upper limit plate 2 and the lower limit plate 3 on the same side; and a limiting block, which is fixedly connected to the side of the upper limit plate 2 and the lower limit plate 3 on the other side. Adjacent coil frame bodies 1 are detachably connected via a plug-and-play connection between the docking fitting and the limiting block. The docking fitting includes a concave connecting block 4 installed on the side of the upper limit plate 2 and the lower limit plate 3. A docking post 401 is installed at the bottom of the groove of the connecting block 4. The limiting block is a locking block 5 installed on one side of an adjacent upper limit plate 2 and lower limit plate 3. The locking block 5 is sized to fit the groove of the connecting block 4, and the upper and lower surfaces of the locking block 5 have slots 501 that fit the docking post 401. Limiting ring assemblies are fitted onto the outer cylinder of the coil frame body 1 at equal intervals from top to bottom.

[0036] like Figure 1 - Figure 4 As shown, in one embodiment, the limiting ring assembly includes a U-shaped wire groove isolation ring 6, with a connecting hole 601 extending through the middle area of ​​each of the four sides of the wire groove isolation ring 6. By installing multiple sets of limiting ring assemblies at equal intervals on the coil frame body 1, when the copper wire is wound on the coil frame body 1, it can be wound between two adjacent wire groove isolation rings 6. Then, the wire end is turned downwards through the connecting hole 601 on any side of the wire groove isolation ring 6 to the next set of wire groove isolation rings 6 and between the wire groove isolation rings 6. This achieves orderly arrangement of the copper wire during the winding process, avoids chaotic winding of the copper wire, improves the regularity and consistency of the coil winding, and thus ensures the quality and performance of the transformer copper coil.

[0037] Furthermore, in one embodiment, each of the slot isolation rings 6 is made of insulating material. By using insulating material for the slot isolation rings 6, short circuits between copper wires can be effectively prevented, improving the safety and reliability of the transformer copper coils and avoiding electrical faults caused by short circuits.

[0038] like Figure 4 and Figure 5 As shown, in one embodiment, the bottom of the lower limiting plate 3 is equipped with two rows of pins 8. By installing two rows of pins 8 at the bottom of the lower limiting plate 3, it is possible to easily connect and fix the coil frame body 1 to other components such as the circuit board, thereby improving the convenience of assembly and ensuring the stability of the connection.

[0039] like Figure 5 As shown, in one embodiment, the upper limit plate 2 has protective anti-slip textures 201 on both sides away from the docking parts and the limiting block. By providing anti-slip textures 201 on both sides of the upper limit plate 2, when multiple sets of coil frame bodies 1 are docked and installed or removed from the limiting block through the docking parts, the anti-slip effect of the technician holding the sides of the upper limit plate 2 is improved. This facilitates the technician holding both sides of the upper limit plate 2 to perform disassembly and assembly operations on adjacent coil frame bodies 1 or between the upper limit plates 2, thus improving the convenience and efficiency of operation.

[0040] like Figure 6 As shown, in one embodiment, both the upper limit plate 2 and the lower limit plate 3 are provided with reinforcing components on their front sides. The reinforcing components include mounting blocks 9 fixed to the front side of the coil frame body 1, with bolts 901 threaded onto the mounting blocks 9. By using the reinforcing components on the front side of the lower limit plate 3 after the coil frame body 1 is mounted on the circuit board via the mounting blocks 9, the installed coil frame body 1 is further fixed to the circuit board through the cooperation of the mounting blocks 9 and the bolts 901. This further strengthens and fixes each individual coil frame body 1, improving the stability of the coil frame body 1 installation and preventing loosening or detachment during use.

[0041] In one embodiment, two adjacent coil frame bodies 1 are connected by a detachable, pluggable connection structure consisting of a docking fitting and a limiting block. The concave structure of the connecting block 4 is adapted to the locking block 5, and the docking post 401 engages with the locking slot 501. This connection structure enables convenient and rapid assembly and disassembly of multiple coil frame bodies 1, facilitating production and maintenance, improving production efficiency, and reducing production costs.

[0042] The working principle and usage process of this utility model are as follows: In use, copper wire is first wound sequentially between adjacent wire groove isolation rings 6 on the coil frame body 1. When winding to the next set of wire groove isolation rings 6, the wire end is passed through the connecting hole 601 on the wire groove isolation ring 6 to continue winding. When multiple coil frame bodies 1 need to be connected, the locking block 5 on one side of the upper limit plate 2 or lower limit plate 3 of one coil frame body 1 is aligned with the connecting block 4 on the other side of the upper limit plate 2 or lower limit plate 3, and then inserted downwards so that the mating post 401 is inserted into the locking slot 501, completing the connection. To disassemble, simply pull it upwards. When the coil frame body 1 needs to be installed on a circuit board, first insert the pins 8 at the bottom of the lower limit plate 3 into the corresponding holes on the circuit board, and then further fix the coil frame body 1 to the circuit board using the mounting blocks 9 and bolts 901 on the front sides of the upper limit plate 2 and lower limit plate 3.

[0043] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A transformer copper coil frame that is easy to assemble, comprising a coil frame body (1), wherein an upper limit plate (2) and a lower limit plate (3) are symmetrically connected to the upper and lower ends of the coil frame body (1), characterized in that: Also includes; The docking fitting is fixedly connected to the side of the upper limit plate (2) and the lower limit plate (3) on the same side. The limiting block is fixedly connected to the side of the upper limiting plate (2) and the lower limiting plate (3) on the other side. The two adjacent coil frame bodies (1) are detachably connected to the limiting block by a plug-in connection between the docking accessories and the limiting block. The docking fitting includes a concave connecting block (4) installed on the side of the upper limit plate (2) and the lower limit plate (3). A docking post (401) is installed at the bottom of the groove of the connecting block (4). A locking block (5) is installed on the side of the adjacent upper limit plate (2) and the lower limit plate (3). The size of the locking block (5) is adapted to the groove of the connecting block (4), and the upper and lower surfaces of the locking block (5) are provided with a slot (501) adapted to the docking post (401). The outer cylinder of the coil frame body (1) is fitted with a limit ring assembly at equal intervals from top to bottom.

2. The easily assembled transformer copper coil bobbin according to claim 1, characterized in that: The limiting ring assembly includes a grooved isolation ring (6) in the shape of a U-shape, and a connecting hole (601) is provided through the middle area of ​​each of the four sides of the grooved isolation ring (6).

3. The easily assembled transformer copper coil frame according to claim 2, characterized in that: Each of the aforementioned slot isolation rings (6) is made of insulating material.

4. The easily assembled transformer copper coil bobbin according to claim 1, characterized in that: The bottom of the lower limit plate (3) is equipped with two rows of pins (8).

5. The easily assembled transformer copper coil bobbin according to claim 1, characterized in that: The upper limit plate (2) has anti-slip textures (201) on both sides away from the docking accessories and the limit block.

6. The easily assembled transformer copper coil bobbin according to claim 5, characterized in that: The upper limit plate (2) and the lower limit plate (3) are both provided with a reinforcement component on the front side. The reinforcement component includes a mounting block (9) fixed on the front side of the coil frame body (1). The mounting block (9) is threaded with a bolt (901).

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