Manganese zinc ferrite core with small magnetic leakage and low loss
By designing a structure including the main body of the manganese zinc ferrite core, the upper cover plate, the lower cover plate, the insertion rod, the adsorption block and the insulating baffle, the problems of uneven magnetic field and magnetic leakage caused by the poor insulation effect of the manganese zinc ferrite core are solved, and the higher insulation effect and lower magnetic leakage loss are achieved, and the winding cleaning capacity and operation convenience are improved.
Patent Information
- Application Number
- CN202420282190.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-02-05
AI Technical Summary
When the manganese zinc ferrite core works, the magnetic field is uneven due to poor insulation effect, which causes magnetic leakage, which leads to power loss.
A structure including a manganese-zero ferrite core body, an upper cover plate, a lower cover plate, an insertion rod, an adsorption block and an insulating baffle are designed. Insulation protection is achieved through the coordination of the positioning hole and the insertion rod, and the winding cleaning capacity and operation convenience are improved through the design of the winding body and the use of an insulating brush.
It improves the insulation effect of the manganese-zeb ferrite core, reduces magnetic leakage, reduces power loss, and improves winding cleaning capacity and operation convenience.
Smart Images
Figure CN222580946U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manganese-zinc ferrite cores, in particular to a manganese-zinc ferrite core with low magnetic leakage and loss. Background Art
[0002] Manganese-zinc ferrite core is a common magnetic material. Manganese-zinc ferrite core is made of manganese-zinc ferrite, which has excellent magnetic properties such as high magnetic permeability, low magnetic resistance, and high saturation magnetic induction intensity. Based on these characteristics, it will be widely used in electronic circuits, communication equipment, computers, power electronics and other fields;
[0003] In the actual application of manganese-zinc ferrite cores, if the insulation effect of the core is poor when working, it is easy to cause an uneven magnetic field. When the magnetic field is unevenly distributed, the magnetic flux exceeds the magnetic flux that the core can accommodate, so it is easy to leak, which can directly lead to problems such as power loss. Utility Model Content
[0004] The purpose of the utility model is to provide a manganese-zinc ferrite core with low leakage loss, so as to solve the problem proposed in the above background technology that if the insulation effect of the core is poor when working, it is easy to cause an uneven magnetic field. When the magnetic field is unevenly distributed, the magnetic flux exceeds the magnetic flux that the core can accommodate, so leakage is likely to occur, which in turn easily leads to a direct loss of power.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manganese-zinc ferrite core with low leakage magnetic field and low loss, comprising a manganese-zinc ferrite core body, an upper cover plate is installed on the top of the manganese-zinc ferrite core body, a lower cover plate is installed on the bottom of the manganese-zinc ferrite core body, a first positioning hole is opened inside the upper cover plate, a second positioning hole is opened inside the lower cover plate, a plug rod is embedded inside the first positioning hole and the second positioning hole, a first plug hole is opened inside the plug rod, an adsorption block is installed at one end of the plug rod, an insulating baffle is installed at the other end of the plug rod, a hand-held rod is fixed to one end of the insulating baffle, and a connecting groove is installed at one end of the first positioning hole and the second positioning hole.
[0006] Preferably, the first positioning holes are symmetrically distributed about the central axis of the upper cover plate, and the second positioning holes are symmetrically distributed about the central axis of the lower cover plate.
[0007] Preferably, the insertion rods are symmetrically distributed about the central axis of the insulating baffle, and the positions of the upper and lower insertion rods are matched with the positions of the first positioning hole and the second positioning hole.
[0008] Preferably, a vertical plate is installed between the upper cover plate and the lower cover plate, an insulating brush is installed on one side of the vertical plate, and chip removal holes are installed on both sides of the bottom end of the lower cover plate.
[0009] Preferably, the vertical plates are symmetrically distributed about the central axis of the upper cover plate and the lower cover plate, the insulating brushes are evenly distributed on one side of the vertical plates, and the chip removal holes are symmetrically distributed about the central axis of the lower cover plate.
[0010] Preferably, a second connecting plate is installed at the top end of the manganese-zinc ferrite core body, a third connecting plate is installed at the bottom end of the manganese-zinc ferrite core body, a winding body is installed between the third connecting plate and the second connecting plate, and reserved grooves are opened inside the upper cover plate and the lower cover plate, a second fixing block is connected inside the reserved groove, and the first fixing block is installed at the top and bottom ends of the second fixing block.
[0011] Preferably, the first fixing blocks are symmetrically distributed about the central axis of the second fixing block, a first connecting plate is installed on the top of the upper cover plate, a connecting column is installed on the top of the first connecting plate, and an insulating strip is connected to the outside of the connecting column.
[0012] Preferably, an insulating rubber layer is fixed to one end of the outer side wall of the insulating strip, and rubber bumps are evenly distributed on the outer side wall of the insulating strip.
[0013] Compared with the prior art, the utility model has the following beneficial effects: the manganese-zinc ferrite core with low leakage magnetic flux and loss not only improves the insulation effect of the manganese-zinc ferrite core, but also improves the winding cleaning ability and operation convenience of the manganese-zinc ferrite core;
[0014] (1) By opening the first positioning holes on both sides of the interior of the upper cover plate, and then opening the second positioning holes on both sides of the interior of the lower cover plate, two groups of upper and lower plug rods are distributed on the end surface of the insulating baffle, with a total of four plug rods. At this time, the two upper plug rods and the two first positioning holes are adapted to each other, and then the two lower plug rods and the two second positioning holes are adapted to each other. The plug rods are correspondingly embedded in the first positioning holes and the second positioning holes, and the adsorption blocks are used for preliminary positioning. Then, at the position of the connecting groove, the bayonet is installed at the position of the connecting groove and passes through the first plug hole to complete the connection and installation. Therefore, the installation of the insulating baffle can be completed. The insulating baffle is used for insulation protection. During operation, it can be taken at the position of the hand-held rod, which improves a certain convenience. Therefore, during the work process, while improving the insulation effect, the leakage magnetic phenomenon is reduced;
[0015] (2) The winding body is installed inside the manganese-zinc ferrite core body. At this time, a second connecting plate is installed at the top end of the winding body, and a third connecting plate is installed at the bottom end of the winding body. The bottom end of the third connecting plate and the top end of the second connecting plate are both connected to the combination of the first fixing block and the second fixing block. Therefore, the winding body can rotate at the position of the connecting column during operation, and the combination of the first fixing block and the second fixing block can be driven to rotate correspondingly inside the reserved groove. Therefore, the purpose of the winding body being rotatable is achieved. When rotating, the winding body can contact the insulating brush. The insulating brush can be used to clean floating dust, and the dust can be discharged and processed at the position of the chip removal hole, thereby reducing the floating and sinking phenomenon.
[0016] (3) By wrapping the insulating strip around the outside of the connecting column, the insulating strip can be operated to stick to the columnar outside of the connecting column, and then the insulation rubber layer is closed. Thus, the wrapped connection of the insulating strip can be completed, and the rubber bumps are evenly distributed on the outside of the insulating strip, which serves the purpose of anti-slip. Therefore, the operation convenience is better during the work process, and the operation smoothness is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the side structure of the insulating baffle of the utility model;
[0019] Figure 3 This is a schematic diagram of the expanded structure of the insulating strip of the utility model when viewed from above;
[0020] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.
[0021] In the figure: 1. upper cover plate; 2. connecting column; 3. insulating strip; 4. first connecting plate; 5. second connecting plate; 6. first positioning hole; 7. manganese-zinc ferrite core body; 8. vertical plate; 9. insulating brush; 10. lower cover plate; 11. chip removal hole; 12. second positioning hole; 13. third connecting plate; 14. winding body; 15. connecting groove; 16. insulating baffle; 17. hand-held rod; 18. plug rod; 19. adsorption block; 20. first plug hole; 21. rubber protrusion; 22. insulating rubber layer; 23. reserved groove; 24. first fixing block; 25. second fixing block. DETAILED DESCRIPTION
[0022] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0023] See also Figure 1-4 The utility model provides an embodiment: a manganese-zinc ferrite core with low leakage magnetic field loss, including a manganese-zinc ferrite core body 7, an upper cover plate 1 is installed on the top of the manganese-zinc ferrite core body 7, a lower cover plate 10 is installed on the bottom of the manganese-zinc ferrite core body 7, a first positioning hole 6 is opened inside the upper cover plate 1, a second positioning hole 12 is opened inside the lower cover plate 10, a plug rod 18 is embedded inside the first positioning hole 6 and the second positioning hole 12, a first plug hole 20 is opened inside the plug rod 18, an adsorption block 19 is installed at one end of the plug rod 18, an insulating baffle 16 is installed at the other end of the plug rod 18, a hand-held rod 17 is fixed to one end of the insulating baffle 16, and a connecting groove 15 is installed at one end of the first positioning hole 6 and the second positioning hole 12.
[0024] The first positioning holes 6 are symmetrically distributed about the central axis of the upper cover plate 1 , and the second positioning holes 12 are symmetrically distributed about the central axis of the lower cover plate 10 .
[0025] The insertion rods 18 are symmetrically distributed about the central axis of the insulating baffle 16 , and the positions of the upper and lower insertion rods 18 match the positions of the first positioning hole 6 and the second positioning hole 12 .
[0026] A vertical plate 8 is installed between the upper cover plate 1 and the lower cover plate 10 , an insulating brush 9 is installed on one side of the vertical plate 8 , and chip removal holes 11 are installed on both sides of the bottom end of the lower cover plate 10 .
[0027] The vertical plates 8 are symmetrically distributed about the central axis of the upper cover plate 1 and the lower cover plate 10 , the insulating brushes 9 are evenly distributed on one side of the vertical plates 8 , and the chip removal holes 11 are symmetrically distributed about the central axis of the lower cover plate 10 .
[0028] A second connecting plate 5 is installed at the top end of the manganese-zinc ferrite core body 7, a third connecting plate 13 is installed at the bottom end of the manganese-zinc ferrite core body 7, a winding body 14 is installed between the third connecting plate 13 and the second connecting plate 5, and a reserved groove 23 is opened inside the upper cover plate 1 and the lower cover plate 10, and a second fixing block 25 is connected inside the reserved groove 23, and the first fixing block 24 is installed at the top and bottom of the second fixing block 25.
[0029] The first fixing block 24 is symmetrically distributed about the central axis of the second fixing block 25 . A first connecting plate 4 is installed on the top of the upper cover plate 1 . A connecting column 2 is installed on the top of the first connecting plate 4 . An insulating strip 3 is connected to the outside of the connecting column 2 .
[0030] An insulating rubber layer 22 is fixed to one end of the outer side wall of the insulating strip 3, and rubber bumps 21 are evenly distributed on the outer side wall of the insulating strip 3;
[0031] Furthermore, the first fixing blocks 24 are symmetrically distributed about the central axis of the second fixing block 25 , and the two first fixing blocks 24 and the one second fixing block 25 are fixed to each other to form a whole, and the whole is adapted to the reserved groove 23 .
[0032] Working principle: First, when working, the upper cover plate 1, the manganese-zinc ferrite core body 7, the lower cover plate 10 and the winding body 14 are used to form a working whole, and then the first positioning holes 6 are opened on both sides of the upper cover plate 1, and then the second positioning holes 12 are opened on both sides of the lower cover plate 10. The upper and lower groups of plug rods 18 are distributed on the end surface of the insulating baffle 16, with a total of four plug rods 18. The upper two plug rods 18 and the two first positioning holes 6 are adapted to each other, and the lower two plug rods 18 and the two second positioning holes 12 are adapted to each other, and the plug rods 18 are correspondingly embedded in the first positioning holes. The inside of the positioning hole 6 and the second positioning hole 12 are initially positioned using the adsorption block 19, and then at the position of the connecting groove 15, a pin is installed at the position of the connecting groove 15 to pass through the first plug hole 20 to complete the connection installation, and the insulating baffle 16 is used for insulation protection. After working for a period of time, the connecting column 2 is twisted, and the combination of the first fixed block 24 and the second fixed block 25 can be driven to rotate correspondingly inside the reserved groove 23. Therefore, the winding body 14 can rotate accordingly, and contact the insulating brush 9 during rotation. The insulating brush 9 is used to clean the floating dust, and finally it can be discharged at the position of the chip removal hole 11.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A manganese-zinc ferrite core with low leakage flux loss, comprising a manganese-zinc ferrite core body (7), characterized in that: An upper cover plate (1) is installed at the top end of the manganese-zinc ferrite core body (7), and a lower cover plate (10) is installed at the bottom end of the manganese-zinc ferrite core body (7). A first positioning hole (6) is provided inside the upper cover plate (1), and a second positioning hole (12) is provided inside the lower cover plate (10). Insertion rods (18) are embedded inside the first positioning hole (6) and the second positioning hole (12), and a first insertion hole (20) is provided inside the insertion rod (18). An adsorption block (19) is installed at one end of the insertion rod (18), and an insulating baffle (16) is installed at the other end of the insertion rod (18). A hand-held rod (17) is fixed to one end of the insulating baffle (16). A connecting groove (15) is installed at one end of the first positioning hole (6) and the second positioning hole (12).
2. A manganese-zinc ferrite core with low magnetic leakage loss according to claim 1, characterized in that: The first positioning holes (6) are symmetrically distributed about the central axis of the upper cover plate (1), and the second positioning holes (12) are symmetrically distributed about the central axis of the lower cover plate (10).
3. The manganese-zinc ferrite core with low magnetic leakage loss according to claim 1, characterized in that: The insertion rods (18) are symmetrically distributed about the central axis of the insulating baffle (16), and the positions of the upper and lower insertion rods (18) are adapted to the positions of the first positioning hole (6) and the second positioning hole (12).
4. The manganese-zinc ferrite core with low magnetic leakage loss according to claim 1, characterized in that: A vertical plate (8) is installed between the upper cover plate (1) and the lower cover plate (10), an insulating brush (9) is installed on one side of the vertical plate (8), and chip removal holes (11) are installed on both sides of the bottom end of the lower cover plate (10).
5. The manganese-zinc ferrite core with low magnetic leakage loss according to claim 4, characterized in that: The vertical plates (8) are symmetrically distributed about the central axis of the upper cover plate (1) and the lower cover plate (10), the insulating brushes (9) are evenly distributed on one side of the vertical plates (8), and the chip removal holes (11) are symmetrically distributed about the central axis of the lower cover plate (10).
6. The manganese-zinc ferrite core with low magnetic leakage loss according to claim 1, characterized in that: A second connecting plate (5) is installed at the top end of the manganese-zinc ferrite core body (7), a third connecting plate (13) is installed at the bottom end of the manganese-zinc ferrite core body (7), a winding body (14) is installed between the third connecting plate (13) and the second connecting plate (5), a reserved groove (23) is opened inside the upper cover plate (1) and the lower cover plate (10), a second fixing block (25) is connected inside the reserved groove (23), and a first fixing block (24) is installed at the top and bottom ends of the second fixing block (25).
7. The manganese-zinc ferrite core with low magnetic leakage loss according to claim 6, characterized in that: The first fixing block (24) is symmetrically distributed about the central axis of the second fixing block (25); a first connecting plate (4) is installed at the top end of the upper cover plate (1); a connecting column (2) is installed at the top end of the first connecting plate (4); and an insulating strip (3) is connected to the outside of the connecting column (2).
8. The manganese-zinc ferrite core with low magnetic leakage loss according to claim 7, characterized in that: An insulating rubber layer (22) is fixed to one end of the outer side wall of the insulating strip (3), and rubber protrusions (21) are evenly distributed on the outer side wall of the insulating strip (3).