Transformer frame
By designing a transformer skeleton with limiting blocks and accommodating slots, the problem of difficulty in separate coil leads is solved, and the rapid installation and separation of coils and magnetic cores is achieved, simplifying the assembly process and improving assembly efficiency.
Patent Information
- Application Number
- CN202421465305.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-25
AI Technical Summary
During the assembly process of the existing transformer skeleton, it is difficult to separate the thick leads and thin leads on the coil, which hinders the installation of the transformer shell and the process of dispensing and fixing the magnetic core and the skeleton.
A transformer skeleton is designed, adopting two core positioning plates and a cylindrical frame body. The limit block and a containment groove are provided on the top of the core positioning plate to accommodate and lead out thick and thin leads on the coil, and the rapid positioning and welding of the core is achieved through the positioning grooves and pins.
It realizes rapid installation and separation of coils and magnetic cores, reduces the amount of glue dispensing, simplifies the assembly process, ensures the smooth installation of the transformer housing, and improves assembly efficiency.
Smart Images
Figure CN222720202U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a transformer frame. Background Art
[0002] Small transformers in related technologies are widely used due to their advantages of saving materials and good stability. Small transformers generally include a magnetic core, a frame and a coil. The coil is wound around the frame, and the magnetic core is inserted from both ends of the frame. After assembly, the magnetic core and the frame are fixed by dispensing glue.
[0003] The leads on the coil are thick and thin. Currently, the thin and thick leads on the coil are led out from the lead slots at both ends of the frame. Since the thin and thick leads are led out from the same size slots, the thick lead is too thick and will bulge upward when it is led out. It cannot be completely accommodated in the lead slot, which will hinder the installation of the transformer housing. Due to the structural limitations of the frame, the thick and thin leads are easy to mix and cross when they are led out, so the thick and thin leads need to be separated separately. In addition, the existing transformer frames are basically fixed to the core and the frame by dispensing glue, which is very troublesome to produce. Utility Model Content
[0004] The utility model aims to solve the above problems and designs a transformer skeleton, which solves the problem that the coil and magnetic assembly on the transformer skeleton are troublesome.
[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is a transformer skeleton, comprising two core positioning plates and a skeleton body connecting the two core positioning plates, wherein the skeleton body is a cylindrical structure, wherein the top of one core positioning plate protrudes upward to form a plurality of limit blocks, the top of the other core positioning plate protrudes upward to form at least two limit blocks, and a receiving groove for accommodating multiple thick leads on the coil is formed between the at least two limit blocks, the depth of the receiving groove is greater than the diameter of the thick coil, a limiting groove for accommodating thin leads on the coil is formed between two adjacent limit blocks, each limit block is provided with a pin for welding to the thin leads on the coil, and the sides of the two core positioning plates have positioning grooves for positioning the magnetic core.
[0006] Preferably, bearing blocks are provided on both sides of the top of the magnetic core positioning plate, pins are provided on the bearing blocks, and a limiting groove is formed between the bearing blocks and the limiting blocks.
[0007] Preferably, the bearing block is a step-shaped structure, including a first step and a second step, and the height of the second step is consistent with the height of the limiting block.
[0008] Preferably, a buckle block is formed on a side of the limiting block away from the skeleton body and protrudes outward.
[0009] Preferably, connecting pieces are provided at both ends of the skeleton body, and the connecting pieces are integrally connected to the magnetic core positioning plate.
[0010] Preferably, buckles are provided on both sides of the magnetic core positioning plate.
[0011] Preferably, the positioning grooves are respectively connected to the inner side and the outer side of the skeleton body.
[0012] Compared with the prior art, the beneficial effects are:
[0013] The utility model has the advantages of simple structure and convenient for quick installation of coils and magnetic cores. The positioning grooves arranged on the two magnetic core positioning plates can fix the magnetic card connection and reduce the amount of glue dispensing. At the same time, the accommodating grooves arranged on the top of the magnetic core positioning plate are used for leading out the thick lead on the coil. When the thick lead is led out, it will not bulge upward to expose the magnetic core positioning plate, which is convenient for the installation of the transformer housing at the back. The limiting grooves are used to accommodate the thin lead of the coil. The thin lead will be welded with the pin, so that the thick lead and the thin lead are independent and distinct without interference. The skeleton is particularly suitable for the quick installation and fixation of E-type magnetic cores, saving assembly time. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the transformer skeleton in the utility model;
[0015] Figure 2 It is a schematic diagram of the structure of the transformer skeleton when the base plate is installed in the utility model;
[0016] Figure 3 , Figure 4 It is a structural schematic diagram of other types of transformer frames having accommodating grooves.
[0017] In the figure, 1, magnetic core positioning plate; 11, limiting block; 111, limiting groove; 12, bearing block; 121, first step; 122, second step; 13, pin; 14, buckle block; 101, positioning groove; 102, accommodating groove; 2, skeleton body; 3, connecting piece; 4, buckle; 5, bottom plate. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] like Figure 1As shown, an embodiment of the present utility model provides a transformer skeleton as a preferred embodiment. The skeleton mainly includes two magnetic core positioning plates 1 and a skeleton body 2. The two magnetic core positioning plates 1 are respectively used to fix two E-shaped magnetic cores and butt the two E-shaped magnetic cores against each other to form a "day"-shaped closed loop for supplementing the magnetic field magnetism. A connecting piece 3 is provided at each end of the skeleton body 2, and the connecting piece 3 is integrally formed and connected to the skeleton body 2 and the magnetic core positioning plate 1. The skeleton body 2 connects the two magnetic core positioning plates 1. The skeleton body 2 is used for winding coils.
[0020] The skeleton body 2 is in a cylindrical structure, and both ends of the skeleton body 2 penetrate through the middle of the connecting piece 3 to form through holes. These through holes are used to accommodate the middle posts of the two E-shaped magnetic cores, and the middle posts of the E-shaped magnetic cores will pass through the through holes and be butt-jointed with the middle parts of the other E-shaped magnetic cores.
[0021] Reference Figure 1 , each side of the magnetic core positioning plate 1 has a rectangular positioning groove 101 for fixing the E-shaped magnetic core. At the same time, the positioning groove 101 communicates with the through hole in the middle of the skeleton body 2 and the outside of the skeleton body 2. The cavity formed between the positioning groove 101, the skeleton body 2 and the connecting piece 3 matches the outer shape of the E-shaped magnetic core, so that the E-shaped magnetic core can be clamped into this cavity, greatly reducing the amount of glue and facilitating quick installation.
[0022] Clips 4 are provided on both sides of each magnetic core positioning plate 1 for clamping with the transformer housing.
[0023] Two bearing blocks 12 are provided at both ends of the top of one of the magnetic core positioning plates 1. On the top of this magnetic core positioning plate 1, between the two bearing blocks 12, a number of limiting blocks 11 protrude upward. Limiting grooves 111 are formed between adjacent two limiting blocks 11 and between the limiting blocks 11 and the bearing blocks 12. These limiting grooves 111 are used to accommodate the thin leads on the coil. Pins 13 are provided on each limiting block 11 and bearing block 12 for soldering with the thin leads.
[0024] The top structure of the other magnetic core positioning plate 1 is similar to the top structure of the magnetic core positioning plate 1 mentioned above, except that the number of limit blocks 11 is much less. There are only three limit blocks 11 on the top of the other magnetic core positioning plate 1, which are located at the two ends of the top of the magnetic core positioning plate 1, one end is one, and the other end is two. Similarly, a limit groove 111 is formed between two adjacent limit blocks 11 and between the limit block 11 and the bearing block 12 to accommodate the thin lead of the coil. In the middle area of the top of the magnetic core positioning plate 1, located between the two limit blocks 11, a receiving groove 102 is formed to accommodate the thick lead on the coil, and the depth of the receiving groove 102 is greater than the diameter of the thick lead. The thick lead on the coil can be led out from the receiving groove 102 side by side, so that the thick lead and the thin lead are separated independently, and at the same time, the thick lead will not protrude upward beyond the upper surface height of the limit block 11 and the bearing block 12, and will not hinder the installation of the transformer housing.
[0025] refer to Figure 2 The bearing block 12 is a stepped structure having a first step 121 and a second step 122, and the height of the second step 122 is consistent with the height of the stop block 11. A bottom plate 5 is provided on the top of the magnetic core positioning plate 1 for leading out the thick lead, for fixing the thick lead. The bottom plate 5 has small holes and large holes, and the small holes facilitate the pins 13 to pass through the bottom plate 5. The large holes are used to fix the thick lead. After the thick lead is led out of the accommodating groove 102, the thick lead is bent vertically upward and passed through the large hole on the bottom plate 5 so as to be welded with other transformer components.
[0026] On the two magnetic core positioning plates 1, the back side of each limit block 11 (i.e., the side away from the skeleton body 2) protrudes outward to form a buckle block 14. When the thin lead wire on the coil is led out from the limit groove 111, it is wound upward from the bottom of the buckle block 14 and then welded to the pin 13. In this way, the lead-out length of the thin lead wire can be increased to increase the heat dissipation length of the thin lead wire. The shorter the lead-out length of the thin lead wire is, the longer the lead-out length of the thin lead wire is, and the longer the heat dissipation distance will be, which is conducive to the heat dissipation of the lead wire and improves the safety of the transformer when it is used.
[0027] The receiving groove 102 on the transformer frame in this embodiment can also be used on other types of frames. Figure 3 , Figure 4 In the frame shown, the receiving groove 102 facilitates the lead-out of the thick lead wire, prevents interference with the lead-out of the thick lead wire, helps lead-out of the thick lead wire, and facilitates the installation of the coil.
[0028] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.
Claims
1. A transformer skeleton, characterized in that: The invention comprises two magnetic core positioning plates (1) and a skeleton body (2) connecting the two magnetic core positioning plates (1), wherein the skeleton body (2) is a cylindrical structure, wherein the top of one magnetic core positioning plate (1) protrudes upwards to form a plurality of limit blocks (11), and the top of the other magnetic core positioning plate (1) protrudes upwards to form at least two limit blocks (11), and a receiving groove (102) for accommodating a plurality of thick leads on a coil is formed between the at least two limit blocks (11), the depth of the accommodating groove (102) being greater than the diameter of the thick coil, and a limiting groove (111) for accommodating a thin lead on the coil is formed between two adjacent limiting blocks (11), and each limiting block (11) is provided with a pin (13) for welding with the thin lead on the coil, and the sides of the two magnetic core positioning plates (1) are provided with a positioning groove (101) for positioning the magnetic core.
2. The transformer skeleton according to claim 1, characterized in that: Both sides of the top of the magnetic core positioning plate (1) are provided with bearing blocks (12), pins (13) are provided on the bearing blocks (12), and a limiting groove (111) is formed between the bearing blocks (12) and the limiting blocks (11).
3. The transformer skeleton according to claim 2, characterized in that: The bearing block (12) is a step-shaped structure, comprising a first step (121) and a second step (122), wherein the height of the second step (122) is consistent with the height of the limiting block (11).
4. The transformer skeleton according to claim 1, characterized in that: The side of the limiting block (11) away from the skeleton body (2) protrudes outwards to form a buckle block (14).
5. The transformer skeleton according to claim 1, characterized in that: Connecting pieces (3) are provided at both ends of the skeleton body (2), and the connecting pieces (3) are integrally connected to the magnetic core positioning plate (1).
6. The transformer skeleton according to claim 1, characterized in that: Buckles (4) are provided on both sides of the magnetic core positioning plate (1).
7. The transformer skeleton according to claim 1, characterized in that: The positioning groove (101) is respectively connected to the inner side and the outer side of the skeleton body (2).