Magnetic core for transformer
By introducing limiting screw grooves, limiting studs, and oil inlet pipes into the magnetic core of the transformer, the problems of inability to quickly disassemble and assemble and lack of protection in the existing technology are solved, achieving the effects of rapid adjustment and preventing jamming, thus improving the practicality and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-31
AI Technical Summary
Existing transformer cores cannot be freely adjusted or quickly disassembled during use, and lack protection and jamming prevention functions, which reduces the practicality and safety of the device.
A transformer core was designed, comprising a transformer base and a limiting mechanism, an oil guiding mechanism, and a buffer mechanism. Through the combination of limiting screw grooves, limiting studs, oil inlet pipes, positioning supports, buffer supports, rubber damping blocks, and telescopic spring columns, quick disassembly and assembly and protection functions are achieved.
It enables quick disassembly and adjustment of the transformer core, prevents the limit stud from jamming, and provides effective protection, thus improving the practicality and safety of the device.
Smart Images
Figure CN224067520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer core technology, and in particular to a transformer core. Background Technology
[0002] The magnetic core is a crucial component of a transformer, used to concentrate the magnetic field, improve energy transmission efficiency, and reduce energy loss. The core's primary function is to provide a smooth magnetic circuit, facilitating the transmission of magnetic flux between windings. Different core materials and structures can affect transformer performance, including efficiency, size, weight, operating frequency, and cost.
[0003] Common transformer core materials:
[0004] Silicon steel sheet magnetic core (silicon steel sheet)
[0005] Features: Silicon steel sheets are the most commonly used transformer core material, with high permeability and low conductivity, making them suitable for low-frequency (50Hz-60Hz) power transformers.
[0006] Applications: Widely used in power transformers, transformers in power distribution systems, and some low-frequency equipment.
[0007] Advantages: Mature manufacturing process, low cost, and reliable performance.
[0008] Iron powder core
[0009] Features: The iron powder core is a magnetic core made by pressing fine iron powder mixed with binder. It has good anti-saturation properties and is suitable for high-frequency applications.
[0010] Applications: Primarily used in small electronic transformers such as high-frequency transformers and switching power supplies.
[0011] Advantages: Good anti-saturation properties, suitable for high-frequency operation, and small size.
[0012] Ferrite core
[0013] Features: Ferrite cores are ceramic cores made of compounds of iron and oxygen. They typically have low losses and high permeability, making them suitable for high-frequency applications.
[0014] Applications: Commonly found in high-frequency transformers, switching power supplies, wireless equipment, etc.
[0015] Advantages: Good high-frequency characteristics, low loss, suitable for high-frequency and miniaturized designs.
[0016] Nanocrystalline material magnetic core
[0017] Features: The magnetic core is made of nanoscale particles, which has very high permeability, low iron loss and good high-frequency characteristics.
[0018] Applications: Suitable for high-frequency, high-efficiency transformers, such as high-frequency power supplies and energy conversion equipment.
[0019] Advantages: Excellent magnetic properties and high efficiency, suitable for high-frequency and high-power equipment.
[0020] Superconducting magnetic core
[0021] Features: Superconducting magnetic core materials can operate in a superconducting state, have very low resistance, and reduce losses.
[0022] Applications: Primarily used in special applications requiring ultra-high frequency, high power, or high efficiency.
[0023] Advantages: Ultra-low loss and high efficiency.
[0024] Structure and form of magnetic core:
[0025] Closed magnetic circuit cores: These are typically used in applications requiring high magnetic flux density, such as power transformers and distribution transformers. A closed magnetic circuit effectively concentrates magnetic flux and reduces leakage flux.
[0026] Open-circuit magnetic core: This structure is commonly used in high-frequency transformers, especially those used for signal processing. Its magnetic flux path is not closed, making it suitable for lower magnetic flux densities.
[0027] Toroidal magnetic cores: commonly found in high-frequency transformers or power inductors. Toroidal magnetic cores have no significant magnetic flux leakage and are often used in electrical equipment with high frequency requirements.
[0028] Type E and Type I magnetic cores: Type E and Type I magnetic cores are commonly used structures in traditional power transformers. Their design facilitates winding installation and is typically used in low-frequency transformers, especially in power transmission and distribution.
[0029] U-shaped and C-shaped magnetic cores: suitable for switching power supplies and high-frequency transformers. Due to their shape design, U-shaped and C-shaped magnetic cores are particularly suitable for high-frequency transformers used for voltage transformation.
[0030] The impact of core material properties on transformers:
[0031] Permeability: Determines a material's ability to conduct magnetic fields. Higher permeability helps improve the efficiency of transformers.
[0032] Magnetic saturation strength refers to the maximum magnetic flux density that a material can withstand. High magnetic saturation strength helps transformers operate normally under higher currents and avoids saturation.
[0033] Hysteresis loss and Eddy current loss: Materials lose energy when the magnetic field changes. Selecting materials with low loss helps improve the efficiency of transformers.
[0034] Temperature stability: As the temperature rises, the magnetism of the core material may weaken, so it is very important to select materials with good temperature stability.
[0035] Factors to consider when selecting transformer cores:
[0036] Operating frequency: High-frequency applications require the selection of core materials with good high-frequency characteristics, such as ferrite or iron powder cores.
[0037] Power requirements: The power requirements of the transformer determine the size of the magnetic core and the choice of materials.
[0038] Cost control: Different types of magnetic core materials and manufacturing processes have different impacts on cost, and a balance between performance and cost must be struck when making a selection.
[0039] Temperature and Environment: For applications in high-temperature or harsh environments, high-temperature stable magnetic core materials must be selected.
[0040] In the prior art, a type of transformer core can be used normally, but it cannot be freely adjusted or quickly disassembled, which reduces the practicality of the device. It also lacks protective devices, reducing safety, and does not have the function of preventing jamming.
[0041] Therefore, we propose a magnetic core for transformers. Utility Model Content
[0042] The present invention aims to solve the technical problems existing in the prior art and provide a magnetic core for transformers.
[0043] To achieve the above objectives, the present invention adopts the following technical solution: a transformer core, comprising a transformer base body one and a transformer base body two, wherein a limiting mechanism is provided on the transformer base body one and the transformer base body two, the limiting mechanism including a limiting screw groove one, a limiting screw groove two and a limiting stud, and an oil guiding mechanism is provided on the limiting stud, the oil guiding mechanism including an oil inlet pipe and an oil outlet groove, and a buffer mechanism is provided on the outer wall of the transformer base body one and the transformer base body two, the buffer mechanism including a positioning support and a buffer support, as well as a rubber damping block and a telescopic spring column.
[0044] As a preferred technical solution of this utility model, the bottom wall of the transformer base body is attached to the top wall of the transformer base body, the limiting screw groove one is opened on the top wall of the transformer base body, and the limiting screw groove two is opened on the top wall of the transformer base body.
[0045] As a preferred technical solution of this utility model, the limiting stud is threadedly and movably connected in the limiting screw groove one and the limiting screw groove two.
[0046] As a preferred embodiment of this utility model, the oil inlet pipe is fixedly sleeved on the top wall of the limiting stud.
[0047] As a preferred technical solution of this utility model, the interior of the limiting stud is hollow, and the oil guide groove is formed on the outer wall of the limiting stud.
[0048] As a preferred technical solution of this utility model, there are multiple positioning pillars, which are respectively fixedly installed on the outer walls of the transformer base body one and the transformer base body two.
[0049] As a preferred embodiment of this utility model, there are multiple buffer pillars, which are movably fitted into multiple positioning pillars.
[0050] As a preferred embodiment of this utility model, the rubber damping blocks are respectively fixedly installed on the inner walls of multiple positioning pillars.
[0051] As a preferred technical solution of this utility model, there are multiple telescopic spring columns. One end of each telescopic spring column is fixedly installed on the outer wall of multiple rubber damping blocks, and the other end of each telescopic spring column is fixedly installed on the outer wall of multiple buffer pillars near the multiple positioning pillars.
[0052] This invention provides a magnetic core for a transformer. It has the following advantages:
[0053] 1. The magnetic core for this transformer, when needed, facilitates quick disassembly and adjustment of the transformer base body 1 and transformer base body 2 through the cooperation of the set limit screw groove 1, limit screw groove 2 and limit stud, and prevents the limit stud from jamming through the cooperation of the set oil inlet pipe and oil guide groove.
[0054] 2. When this type of transformer core is needed, the positioning support, buffer support, rubber damping block and telescopic spring column work together to provide protection for the transformer base body 1 and transformer base body 2. Attached Figure Description
[0055] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented, and therefore have no substantial technical significance.
[0056] Figure 1This is a schematic diagram of the overall structure of the utility model.
[0057] Figure 2 For utility model Figure 1 Enlarged view of point A in the middle;
[0058] Figure 3 For utility model Figure 1 Enlarged view at point B in the middle;
[0059] Figure 4 For utility model Figure 1 Enlarged view of point C.
[0060] Legend:
[0061] 101. Transformer base body 1; 102. Transformer base body 2; 11. Limiting screw groove 1; 12. Limiting screw groove 2; 13. Limiting stud; 14. Oil inlet pipe fitting; 15. Positioning support; 16. Buffer support. Detailed Implementation
[0062] A type of transformer core, such as Figure 1-4 As shown, the transformer includes a transformer base body 101 and a transformer base body 102. Limiting mechanisms are provided on both transformer base bodies 101 and 102. These limiting mechanisms include a first limiting screw groove 11, a second limiting screw groove 12, and a limiting stud 13. An oil guiding mechanism is provided on the limiting stud 13, including an oil inlet pipe 14 and an oil outlet groove. A buffer mechanism is provided on the outer walls of both transformer base bodies 101 and 102. This buffer mechanism includes a positioning support column 15, a buffer support column 16, a rubber damping block, and a telescopic spring column. The bottom wall of the transformer base body 101 is fitted to the top wall of the transformer base body 102. The first limiting screw groove 11 is located on the top wall of the transformer base body 101, and the second limiting screw groove 12 is located on the top wall of the transformer base body 102. 13 is threaded and movably connected in the limiting screw groove 11 and the limiting screw groove 12. The oil inlet pipe 14 is fixedly sleeved on the top wall of the limiting stud 13. The interior of the limiting stud 13 is hollow. The oil guide groove is opened on the outer wall of the limiting stud 13. There are multiple positioning pillars 15. The multiple positioning pillars 15 are respectively fixedly installed on the outer walls of the transformer base body 101 and the transformer base body 102. There are multiple buffer pillars 16. The multiple buffer pillars 16 are movably sleeved in the multiple positioning pillars 15. The rubber damping blocks are respectively fixedly installed on the inner walls of the multiple positioning pillars 15. There are multiple telescopic spring pillars. One end of the multiple telescopic spring pillars is respectively fixedly installed on the outer wall of the multiple rubber damping blocks. The other end of the multiple telescopic spring pillars is respectively fixedly installed on the outer wall of the multiple buffer pillars 16 near the multiple positioning pillars 15.
[0063] The working principle of this utility model is as follows: When needed, the limiting screw groove 11, the limiting screw groove 12 and the limiting stud 13 cooperate to facilitate the quick disassembly, assembly and adjustment of the transformer base body 101 and the transformer base body 102. The limiting stud 13 is prevented from getting stuck by the cooperation between the oil inlet pipe fitting 14 and the oil guide groove.
[0064] When needed, the positioning support 15, buffer support 16, rubber damping block and telescopic spring column work together to provide protection for transformer base body 101 and transformer base body 102.
[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A magnetic core for a transformer comprising a transformer base one body (101) and a transformer base two body (102), characterized in that: The variable pressure base one body (101) and the variable pressure base two body (102) are provided with a limiting mechanism, the limiting mechanism includes a limiting screw groove one (11), a limiting screw groove two (12) and a limiting screw column (13), the limiting screw column (13) is provided with an oil guide mechanism, the oil guide mechanism includes an oil inlet pipe (14) and an oil discharge groove, the outer wall of the variable pressure base one body (101) and the variable pressure base two body (102) is provided with a buffer mechanism, the buffer mechanism includes a positioning support (15) and a buffer support (16) and a rubber damping block and a telescopic spring column.
2. A magnetic core for a transformer according to claim 1, characterized in that: The bottom end wall of the variable pressure base one body (101) is attached to the top end wall of the variable pressure base two body (102), the limiting screw groove one (11) is opened on the top end wall of the variable pressure base one body (101), and the limiting screw groove two (12) is opened on the top end wall of the variable pressure base two body (102).
3. A magnetic core for a transformer according to claim 1, characterized in that: The limiting screw column (13) is threadedly connected in the limiting screw groove one (11) and the limiting screw groove two (12).
4. A magnetic core for a transformer according to claim 1, characterized in that: The oil inlet pipe (14) is fixedly sleeved on the top end wall of the limiting screw column (13), the inside of the limiting screw column (13) is hollow, and the oil guide groove is opened on the outer wall of the limiting screw column (13).
5. A magnetic core for a transformer according to claim 1, characterized in that: The positioning support (15) is shared by multiple, multiple positioning supports (15) are respectively fixedly installed on the outer wall of the variable pressure base one body (101) and the variable pressure base two body (102), and the buffer support (16) is shared by multiple, multiple buffer supports (16) are respectively movably sleeved in the multiple positioning supports (15).
6. A magnetic core for a transformer according to claim 1, characterized in that: The rubber damping block is respectively fixedly installed on the inner wall of the multiple positioning supports (15), the telescopic spring column is shared by multiple, one end of the multiple telescopic spring columns is respectively fixedly installed on the outer wall of the multiple rubber damping blocks, and the other end of the multiple telescopic spring columns is respectively fixedly installed on the outer wall of the multiple buffer supports (16) close to the multiple positioning supports (15).