Nanocrystalline inductor device

Abstract

The utility model relates to inductance device technical field discloses a kind of nanocrystalline inductance device, comprising: fixed part, nanocrystalline strip, adjusting lever and multiple elastic parts, fixed part is equipped with round hole;Nanocrystalline strip is coiled with the central axis of round hole, and nanocrystalline strip is located in round hole;Adjusting lever extends along the radial of round hole, and the first end of adjusting lever passes through the wall surface of fixed part and abuts the outside of nanocrystalline strip;Multiple elastic parts are symmetrically distributed with the central axis of round hole, and elastic part extends along the radial of round hole, and one end of elastic part is fixedly connected to the inside of fixed part, and the other end of elastic part abuts the outside of nanocrystalline strip.The utility model provides a kind of nanocrystalline inductance device, can better adjust the layering interval when nanocrystalline strip is coiled, and control the inductance of nanocrystalline inductance device.

Description

Technical Field

[0001] This utility model relates to the field of inductor technology, and in particular to a nanocrystalline inductor. Background Technology

[0002] Nanocrystalline soft magnetic alloys refer to soft magnetic alloys with a nanocrystalline structure and a particle size of less than 100nm, obtained by special heat treatment based on amorphous alloys. Essentially, they are a mixture of amorphous and nanocrystalline materials.

[0003] Nanocrystalline ribbons, used as magnetic cores, exhibit high permeability and low loss under weak electric fields, while possessing high saturation magnetic induction under strong magnetic fields, making them widely applicable in various switching power supplies and filter circuits. However, during manual winding of nanocrystalline ribbons, the layer spacing is affected by the forming pressure, and it is difficult to control a stable forming pressure for each winding. Consequently, the layer spacing varies with each winding, leading to significant differences in the inductance of nanocrystalline inductors. Utility Model Content

[0004] The purpose of this invention is to provide a nanocrystalline inductor device that can better adjust the stacking spacing during the winding of nanocrystalline strips and control the inductance value of the nanocrystalline inductor device.

[0005] To achieve the above objectives, this utility model provides a nanocrystalline inductor device, comprising: a fixing member having a circular hole; A nanocrystalline ribbon, wherein the nanocrystalline ribbon is wound around the central axis of the circular hole and the nanocrystalline ribbon is located inside the circular hole; An adjusting rod extends radially along the circular hole, with its first end passing through the wall of the fixing member and abutting against the outer surface of the nanocrystalline ribbon. Multiple elastic elements are symmetrically distributed about the central axis of the circular hole. The elastic elements extend radially along the circular hole. One end of each elastic element is fixedly connected to the inner side of the fixing element, and the other end of each elastic element abuts against the outer side of the nanocrystalline ribbon.

[0006] Preferably, the elastic element is shaped like a frustum, with the bottom surface of the frustum abutting the outer surface of the nanocrystalline ribbon and the top surface of the frustum abutting the inner surface of the fixing element.

[0007] Preferably, the end of the elastic element near the nanocrystalline ribbon is in complete contact with the outer surface of the nanocrystalline ribbon.

[0008] Preferably, there is a gap between two adjacent elastic elements.

[0009] Preferably, the adjusting rod is equidistant from the two adjacent elastic elements.

[0010] Preferably, the wall of the fastener has a threaded hole extending radially along the circular hole, the adjusting rod has an external thread, and the external thread of the adjusting rod and the internal thread of the threaded hole are engaged and connected.

[0011] Preferably, the second end of the adjusting rod is connected to a limit block.

[0012] Preferably, the limiting block is coaxial with the adjusting rod, and the diameter of the limiting block is larger than the diameter of the adjusting rod.

[0013] Preferably, the fastener is a non-conductive fastener.

[0014] Preferably, the fastener is a plastic fastener.

[0015] Compared with the prior art, the nanocrystalline inductor device of this utility model has the following advantages: The fixing component has a circular hole. The nanocrystalline ribbon is wound around the central axis of the circular hole and placed inside the circular hole. The first end of the adjusting rod passes through the wall of the fixing component and abuts against the outer side of the nanocrystalline ribbon. Multiple elastic elements are fixedly connected to the inner side of the fixing component. The multiple elastic elements are symmetrically distributed around the central axis of the circular hole. The elastic elements extend radially along the circular hole and abut against the outer side of the nanocrystalline ribbon. The elastic elements provide support for the nanocrystalline ribbon.

[0016] As the drive adjustment rod gradually moves away from the nanocrystalline ribbon, the nanocrystalline ribbon gradually loosens, the stacking spacing of the nanocrystalline ribbon gradually increases, the inductance of the nanocrystalline inductor gradually decreases, the nanocrystalline ribbon applies pressure to the elastic element, the elastic element is compressed, and multiple elastic elements can balance the pressure applied by the nanocrystalline ribbon, so the nanocrystalline ribbon can still maintain a good circular shape. The stacking spacing of the nanocrystalline ribbon is uniform in all directions along the circumference, so the stacking spacing during the winding of the nanocrystalline ribbon can be better adjusted, and the inductance of the nanocrystalline inductor can be controlled. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the nanocrystalline inductor device described in this embodiment of the present invention; Figure 2 This is a front view of the nanocrystalline inductor device described in this embodiment of the present invention; In the figure, 1 is the fixing component; 11 is the round hole; 2 is the nanocrystalline ribbon; 3 is the adjusting rod; 4 is the elastic component; and 5 is the limiting block. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be understood that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0020] In the description of this utility model, it should be understood that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," "longitudinal," "X-axis direction," "Y-axis direction," and "Z-axis direction," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Moreover, some of the above terms, in addition to indicating orientation or positional relationship, may also be used to indicate other meanings; for example, the term "upper" may in some cases be used to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0021] like Figure 1 As shown, a nanocrystalline inductor device according to an embodiment of the present invention includes: a fixing member 1, a nanocrystalline strip 2, an adjusting rod 3, and multiple elastic members 4; The fixing member 1 has a circular hole 11; the nanocrystalline ribbon 2 is wound around the central axis of the circular hole 11 and is located inside the circular hole 11; the adjusting rod 3 extends radially along the circular hole 11, and the first end of the adjusting rod 3 passes through the wall of the fixing member 1 and abuts against the outer side of the nanocrystalline ribbon 2; a plurality of elastic members 4 are symmetrically distributed around the central axis of the circular hole 11, the elastic members 4 extend radially along the circular hole, one end of the elastic member 4 is fixedly connected to the inner side of the fixing member 1, and the other end of the elastic member 4 abuts against the outer side of the nanocrystalline ribbon 2.

[0022] It should be noted that the fixing member 1 has a circular hole 11. The nanocrystalline ribbon 2 is wound around the central axis of the circular hole 11 and placed inside the circular hole 11. The first end of the adjusting rod 3 passes through the wall of the fixing member 1 and abuts against the outer side of the nanocrystalline ribbon 2. Multiple elastic elements 4 are fixedly connected to the inner side of the fixing member 1. The multiple elastic elements 4 are symmetrically distributed around the central axis of the circular hole 11. The elastic elements 4 extend radially along the circular hole 11 and abut against the outer side of the nanocrystalline ribbon 2. The elastic elements 4 provide support for the nanocrystalline ribbon 2.

[0023] As the drive adjustment rod 3 gradually moves away from the nanocrystalline ribbon 2, the nanocrystalline ribbon 2 gradually loosens, the stacking spacing of the nanocrystalline ribbon 2 gradually increases, the inductance of the nanocrystalline inductor gradually decreases, the nanocrystalline ribbon 2 applies pressure to the elastic element 4, the elastic element 4 is compressed, and the multiple elastic elements 4 can balance the pressure applied by the nanocrystalline ribbon 2, so the nanocrystalline ribbon 2 can still maintain a good circular shape. The stacking spacing of the nanocrystalline ribbon 2 is uniform along the circumference, so the stacking spacing of the nanocrystalline ribbon 2 during winding can be better adjusted, and the inductance of the nanocrystalline inductor can be controlled.

[0024] The end of the elastic element 4 closest to the fixing element 1 is fixedly connected to the inner side of the fixing element 1, making the position of the elastic element 4 more stable and preventing slippage and misalignment. Furthermore, the elastic element 4 will not fall off when the nanocrystalline ribbon 2 is removed. When replacing another roll of nanocrystalline ribbon 2, it can be directly clipped between multiple elastic elements 4 for installation, making disassembly and assembly more convenient.

[0025] Elastic component 4 is a soft pad, such as a silicone pad or other soft material.

[0026] like Figure 1 As shown, in this embodiment, the elastic member 4 is further shaped as a frustum, with the bottom surface of the frustum abutting the outer surface of the nanocrystalline ribbon 2 and the top surface of the frustum abutting the inner surface of the fixing member 1.

[0027] It should be noted that the elastic element 4 is shaped like a frustum. The bottom surface of the frustum abuts against the outer surface of the nanocrystalline ribbon 2, and the top surface of the frustum abuts against the inner surface of the fixing element 1. Therefore, when the elastic element 4 is compressed by the nanocrystalline ribbon 2, the frustum structure of the elastic element 4 can more stably and evenly balance and buffer the pressure, allowing the nanocrystalline ribbon 2 to loosen more stably and adjust the stacking spacing of the nanocrystalline ribbon 2 more stably.

[0028] like Figure 1 As shown, in this embodiment, the end of the elastic member 4 near the nanocrystalline ribbon 2 is further in complete contact with the outer surface of the nanocrystalline ribbon 2.

[0029] It should be noted that the end of the elastic element 4 closest to the nanocrystalline ribbon 2 is completely in contact with the outer surface of the nanocrystalline ribbon 2, so that the elastic element 4 can provide more support to the outer surface of the nanocrystalline ribbon 2 and balance the pressure it is subjected to, thus avoiding the situation where the stacking spacing of the nanocrystalline ribbon 2 along the axial direction is different due to uneven force.

[0030] like Figure 1 As shown, in this embodiment, there is a gap between two adjacent elastic elements 4.

[0031] It should be noted that when the elastic element 4 is compressed, the elastic element 4 is subjected to axial pressure, and the radial width of the elastic element 4 will increase. By setting a gap between two adjacent elastic elements 4, the situation where adjacent elastic elements 4 cannot be compressed to the limit due to mutual squeezing is avoided. This allows for more extreme compression of the elastic element 4, expands the range of loosening of the nanocrystalline ribbon 2, and expands the range of adjustable inductance value of the nanocrystalline inductor.

[0032] like Figure 1-2 As shown, in this embodiment, the distance between the adjusting rod 3 and the two adjacent elastic elements 4 is further equal.

[0033] It should be noted that the distance between the adjusting rod 3 and the two adjacent elastic elements 4 is the same, that is, the two elastic elements 4 are symmetrical about the adjusting rod 3 as the central axis. Thus, when the adjusting rod 3 moves away from the nanocrystalline ribbon 2, the pressure is redistributed and the two elastic elements 4 bear the same pressure at the same time. This avoids the situation where one elastic element 4 bears a larger pressure first, resulting in uneven pressure balance, which in turn leads to uneven deformation of the nanocrystalline ribbon 2 and damage to the nanocrystalline ribbon 2.

[0034] like Figure 1 As shown, in this embodiment, the wall of the fixing member 1 is further provided with a threaded hole extending radially along the circular hole 11, and the adjusting rod 3 is provided with an external thread, and the external thread of the adjusting rod 3 and the internal thread of the threaded hole are engaged and connected.

[0035] It should be noted that the adjusting rod 3 and the fixing part 1 are connected by the mating of the external thread and the internal thread. Therefore, by controlling the number of turns of the adjusting rod 3, the degree of loosening of the nanocrystalline ribbon 2 can be controlled more precisely, the change of the stacking spacing of the nanocrystalline ribbon 2 can be controlled more precisely, and the inductance value of the nanocrystalline inductor can be adjusted more precisely.

[0036] like Figure 1-2 As shown, in this embodiment, the second end of the adjusting rod 3 is further connected to a limiting block 5.

[0037] It should be noted that the second end of the adjusting rod 3 is connected to the limiting block 5 to prevent the adjusting rod 3 from retracting into the hole of the fixing part 1 when it moves closer to the nanocrystalline ribbon 2, and to facilitate the operator's gripping and operation.

[0038] like Figure 1-2 As shown, in this embodiment, the limiting block 5 is coaxial with the adjusting rod 3, and the diameter of the limiting block 5 is larger than the diameter of the adjusting rod 3.

[0039] It should be noted that the limiting block 5 is coaxial with the adjusting rod 3, and the diameter of the limiting block 5 is larger than the diameter of the adjusting rod 3, which makes it easier to grip and operate, such as making it easier to pull the adjusting rod 3 outward, making it easier to rotate the adjusting rod 3 to move outward, and improving the stability of gripping.

[0040] like Figure 1 As shown, in this embodiment, the fixing member 1 is further described as a non-conductive fixing member.

[0041] It should be noted that the fastener 1 is a non-conductive fastener, which can effectively block the eddy current path generated by the high-frequency current and reduce the impact of energy loss caused by electromagnetic induction on the nanocrystalline ribbon 2 of the metal components near the nanocrystalline ribbon 2.

[0042] like Figure 1 As shown, in this embodiment, the fastener 1 is further described as a plastic fastener.

[0043] It should be noted that fastener 1 is a plastic fastener, which has a low material cost and does not require an insulating coating.

[0044] The preparation method of nanocrystalline ribbon includes the following steps: 1. The raw materials pure iron, crystalline silicon, ferroboron, ferroniobium and electrolytic copper are smelted at thousands of degrees according to the smelting process to obtain nanocrystalline master alloy material. 2. The smelted master alloy is passed through a strip spraying machine to melt the master alloy into molten steel again, and then sprayed onto a high-speed cooling copper roller for rapid cooling, thereby forming a nanocrystalline strip.

[0045] 3. Cut the nanocrystalline ribbon produced by the ribbon spraying machine into preset widths as required.

[0046] 4. The slit nanocrystalline ribbon is automatically wound into shape using an automatic winding machine.

[0047] 5. The nanocrystalline ribbon is heat-treated to relieve stress, and then undergoes nucleation and crystallization processes. During the heat treatment, longitudinal and transverse magnetic fields are selectively added to control different performance parameters.

[0048] 6. Coat the surface of the nanocrystalline ribbon with an epoxy coating.

[0049] The working process of this utility model is as follows: The fixing member 1 has a circular hole 11. The nanocrystalline ribbon 2 is wound around the central axis of the circular hole 11 and placed inside the circular hole 11. The first end of the adjusting rod 3 passes through the wall of the fixing member 1 and abuts against the outer side of the nanocrystalline ribbon 2. Multiple elastic members 4 are fixedly connected to the inner side of the fixing member 1. The multiple elastic members 4 are symmetrically distributed around the central axis of the circular hole 11. The elastic members 4 extend radially along the circular hole 11 and abut against the outer side of the nanocrystalline ribbon 2. The elastic members 4 provide support force to the nanocrystalline ribbon 2.

[0050] As the drive adjustment rod 3 gradually moves away from the nanocrystalline ribbon 2, the nanocrystalline ribbon 2 gradually loosens, the stacking spacing of the nanocrystalline ribbon 2 gradually increases, the inductance of the nanocrystalline inductor gradually decreases, the nanocrystalline ribbon 2 applies pressure to the elastic element 4, the elastic element 4 is compressed, and the multiple elastic elements 4 can balance the pressure applied by the nanocrystalline ribbon 2, so the nanocrystalline ribbon 2 can still maintain a good circular shape. The stacking spacing of the nanocrystalline ribbon 2 is uniform along the circumference, so the stacking spacing of the nanocrystalline ribbon 2 during winding can be better adjusted, and the inductance of the nanocrystalline inductor can be controlled.

[0051] In summary, this utility model provides a nanocrystalline inductor device that can adjust the stacking spacing of nanocrystalline strips during winding to control the inductance value of the nanocrystalline inductor device.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A nanocrystalline inductor device, characterized in that, include: The fastener has a circular hole. A nanocrystalline ribbon, wherein the nanocrystalline ribbon is wound around the central axis of the circular hole and the nanocrystalline ribbon is located inside the circular hole; An adjusting rod extends radially along the circular hole, with its first end passing through the wall of the fixing member and abutting against the outer surface of the nanocrystalline ribbon. Multiple elastic elements are symmetrically distributed about the central axis of the circular hole. The elastic elements extend radially along the circular hole. One end of each elastic element is fixedly connected to the inner side of the fixing element, and the other end of each elastic element abuts against the outer side of the nanocrystalline ribbon.

2. The nanocrystalline inductor device according to claim 1, characterized in that, The elastic element is shaped like a frustum, with the bottom surface of the frustum abutting the outer surface of the nanocrystalline ribbon and the top surface of the frustum abutting the inner surface of the fixing element.

3. The nanocrystalline inductor device according to claim 1, characterized in that, The end of the elastic element closest to the nanocrystalline ribbon is completely in contact with the outer surface of the nanocrystalline ribbon.

4. The nanocrystalline inductor device according to claim 1, characterized in that, There is a gap between two adjacent elastic elements.

5. The nanocrystalline inductor device according to claim 1, characterized in that, The adjusting rod is equidistant from the two adjacent elastic elements.

6. The nanocrystalline inductor device according to claim 1, characterized in that, The wall of the fastener has a threaded hole extending radially along the circular hole, and the adjusting rod has an external thread that engages with the internal thread of the threaded hole.

7. The nanocrystalline inductor device according to claim 1, characterized in that, The second end of the adjusting rod is connected to a limit block.

8. The nanocrystalline inductor device according to claim 7, characterized in that, The limiting block is coaxial with the adjusting rod, and the diameter of the limiting block is larger than the diameter of the adjusting rod.

9. The nanocrystalline inductor device according to claim 1, characterized in that, The fastener is a non-conductive fastener.

10. The nanocrystalline inductor device according to claim 9, characterized in that, The fastener is a plastic fastener.

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