TWM447582U - Inductance device - Google Patents

Description

Inductive device

This creation relates to the design of an inductor, and more particularly to an inductive device that uses a core of different magnetic permeability.

Inductors are often used in a variety of electronic products, which have functions for reducing electromagnetic interference, suppressing instantaneous current, improving power conversion, and filtering noise. The basic structure of the inductor is an iron core and a coil wound around the periphery of the iron core for current to pass through.

Since the electronic product is in operation, noise current may be generated at various frequencies. In order to filter out noise in different frequency bands at the same time, the general electronic products will set up several inductors on the circuit board to respectively correspond to the noise of different frequency bands, and maintain the electrical signal quality of the electronic products.

However, as the number of inductors is larger, it can filter out more noise in different frequency bands, but it also takes up more circuit space, which makes the volume of electronic products difficult to reduce. In addition, too many inductors are prone to mutual interference between electromagnetic signals, which additionally causes signal instability.

Accordingly, the object of the present invention is to provide an inductive device to solve the above-mentioned problems in the prior art.

The technical means used in the present invention to solve the problems of the prior art is an inductive device comprising: a first magnetically permeable core; a second magnetically permeable core having a magnetic difference from the first magnetically permeable core Conduction coefficient The core body forms a magnetic circuit of the inductor device by magnetically coupling the second magnetic core; and a wire is wound around the first magnetic core and the second magnetic core.

In an embodiment of the present invention, an insulating housing is further disposed between the wire and the first magnetically permeable core and the second magnetically permeable core.

In an embodiment of the present invention, the insulating housing further has an interposed space, and the first magnetic guiding core and the second magnetic guiding core system are disposed in the clamping space.

In an embodiment of the present invention, the insulative housing has a winding groove on the outer surface for the wire to be wound around the insulative housing. In an embodiment of the invention, wherein the inductive device comprises at least two sets of wires.

In an embodiment of the present invention, one of the wires is insulated from the first magnetic core, and the other of the wires is insulated from the second magnetic core.

In an embodiment of the present invention, wherein the first magnetically permeable core and the second magnetically permeable core system are coupled into a coupled magnetically permeable core, the coupled magnetically permeable core system includes a plurality of core members joined to each other.

In an embodiment of the present invention, wherein the first magnetically permeable core and the second magnetically permeable core are respectively located in different core members.

In an embodiment of the present invention, wherein the core member has an open configuration and has at least two open ends, the open ends of the core members are correspondingly joined.

In an embodiment of the present invention, wherein the shape of the core member is a closed configuration, and one of the core members is disposed side by side with the other of the core members.

In an embodiment of the present invention, wherein the shape of the core member is a closed configuration, and one of the core members is sleeved with the other of the core members.

Through the technical means adopted in the present creation, the inductive device can be arranged for different needs of the electronic product by the first magnetic guiding core and the second magnetic guiding core having different magnetic permeability coefficients, and can be achieved by reducing the number of inductances. The required inductance effect can also reduce the number of coil turns, which not only reduces the cost of manual winding, but also reduces the parasitic capacitance generated by the winding, thereby improving the high-frequency performance of the inductor device and making the electronic product easier to miniaturize.

Further, by providing the first magnetic guiding core and the second magnetic guiding core separately to different core members, it is possible to manufacture them easily.

The specific embodiments of the present invention will be further described by the following examples and accompanying drawings.

Please refer to FIG. 1 and FIG. 2, which is a perspective view showing a first embodiment according to the present invention, and FIG. 2 is an exploded view showing a first embodiment according to the present invention.

As shown in FIG. 1 and FIG. 2, an inductive device 100 according to the first embodiment of the present invention includes a first magnetic guiding core 1, a second magnetic core 2, two sets of wires 3, and a Insulating housing 4. The first magnetic guiding core 1 and the second magnetic guiding core 2 have different magnetic permeability coefficients, and the first magnetic guiding core 1 forms a magnetic conductive circuit of the inductive device 100 by magnetically coupling the second magnetic guiding core 2 (Magnetic Circuit). Among them, the coupling capable of forming a magnetic permeability loop is called magnetic coupling. For example, the two sets of cores are respectively induced to generate independent magnetic circuits, and the two sets of independent magnetic circuits are combined into a set of magnetic conductive loops for magnetic circulation. It should be noted that the two sets of cores are not necessarily in contact. The magnetic coupling between the first magnetic guiding core 1 and the second magnetic guiding core 2 can be regarded as a coupled magnetic permeability. Core. In actual fabrication, the coupled magnetically permeable core may comprise a plurality of core members bonded to each other. For example, in the present embodiment, the coupled magnetic core includes two core members in an open configuration of a "ㄇ" shape. Each of the core members has two open ends and is correspondingly coupled according to the corresponding open ends. Wherein, the open configuration is a geometric shape having a notch, for example, an L-shaped, a C-shaped, a braided, and an E-shaped system is an open configuration.

The material constituting the first magnetic guiding core 1 may be selected from a ferrite material and an alloy-based material. The alloy-based material may be selected from nano materials and Amorphous materials, and has high initial permeability and high frequency loss. The ferrite material is selected from the group consisting of nickel-zinc, manganese-zinc, copper-zinc, aluminum-zinc, and magnesium-manganese, and has a low initial permeability and a small magnetic loss at high frequencies. The material of the second magnetic guiding core 2 may be similar to that of the first magnetic guiding core 1, and is selected from the group consisting of ferrite materials and alloy-based materials. Preferably, one of the first magnetic guiding core 1 and the second magnetic guiding core 2 is a ferrite material, and the other is an alloy-based material. Due to the difference in inductance characteristics of the two sets of materials, in operation, even if the first magnetic conducting core 1 enters a saturated state, the second magnetic conducting core 2 having different inductance characteristics can perform an inductive function. However, as long as the magnetic permeability of the second magnetic conducting core 2 is different from that of the first magnetic guiding core 1, the materials of the first magnetic guiding core 1 and the second magnetic guiding core 2 may also be ferrite or Alloy material.

The wire 3 is electrically connected to the first magnetically permeable core 1 and the second magnetically permeable core 2 by insulation. In practice, the wire 3 can be an enameled wire for easy insulation. When winding, according to the application of the inductive device, the two sets of wires 3 can be in contact with each other or not. The insulating case 4 is disposed between the wire 3 and the first magnetic core body 1 and the second magnetic core body 2. The insulating case 4 has an interposed space S for the first magnetic guiding core 1 and the second magnetic guiding core 2. The insulating case 4 has a winding groove 41 on the outer surface for the wire 3 to be wound. The winding direction of the two sets of wires 3 is required for practical application. insulation The outer casing 4 has an outlet groove 42 on the upper surface and the lower surface, respectively, to facilitate the winding of the wire 3 around the wire.

Please refer to FIG. 3 and FIG. 4, which are an inductive device 100A according to the second embodiment of the present invention. In the embodiment, the coupled magnetic core comprises two sets of annular closed-structured core members. The first magnetic guiding core 1 and the second magnetic guiding core 2 are respectively located on different core members, and the core members are nested with each other to magnetically couple the first magnetic guiding core 1 and the second magnetic guiding core 2 to form a guide. Magnetic circuit. Wherein, the closed configuration of the core member is a shape without a gap, such as a rectangular shape, a triangular shape, a circular shape, and a ring shape.

In addition, the coupled magnetic core of the inductive device of the present invention can also be manufactured in a manner. As shown in Fig. 5a, the coupled magnetic core is divided into two sets of "L"-shaped core members, and the first magnetic core 1 and the second magnetic core 2 having different magnetic permeability coefficients are respectively located. Core member. By replacing the core member, the combination of the first magnetic guiding core 1 and the second magnetic guiding core 2 can be quickly arranged for different needs of the electronic product to achieve the required inductance effect.

As shown in Figures 5b and 5c, which is similar to Figure 5a, the difference is that the coupled magnetic core in Figure 5b is divided into two sets of semi-annular open-structured core members, and The coupled magnetic core in Figure 5c is divided into two sets of "E" shaped open core members. By the change in shape, it is also possible to provide an inductance effect different from the embodiment of Fig. 5a.

As shown in Fig. 6a to Fig. 7, it is similar to Fig. 5c, with the difference that the coupled magnetic core in Fig. 6a is divided into two rectangular closed core members and arranged side by side, in Fig. 6b The coupled magnetically permeable core body is divided into two sets of ring-shaped closed-structured core members and arranged side by side. The coupled magnetic core in Fig. 7 is divided into two sets of rectangular core members and sleeved. By the difference in the arrangement, it is also possible to provide an inductance effect different from that of the embodiment of Fig. 5a.

In addition, the first magnetic guiding core 1 and the second magnetic guiding core 2 may also be distributed on the same core member. As shown in Fig. 8a, the coupled magnetic core comprises two sets of "ㄇ" shaped core members. The first magnetically permeable core 1 includes first magnetic core portions 11, 12, 13, 14 and the second magnetic core 2 includes second magnetic core portions 21, 22. Wherein the first magnetic guiding core sub-portions 11, 12 and the second magnetic guiding core sub-portion 21 are distributed in one of the core members, the first magnetic guiding core sub-portions 13, 14 and the second magnetic conducting core body The portion 22 is distributed over the other core member. By arranging the first magnetically permeable core 1 and the second magnetically permeable core 2 on the same core member in different ratios, it is possible to provide a more precise inductance effect for different needs of the electronic product.

As shown in Fig. 8b and Fig. 8e, it is similar to Fig. 8a, with the difference that the first magnetic core body portion 11 and the second magnetic core body portion 21 in Fig. 8b are distributed in one of the cores. The member, the first magnetic core body portion 12 and the second magnetic core body portion 22 are distributed to the other core member, and the first magnetic core portion 11 and the second magnetic core of the eighth embodiment are The body portions 21, 22, 23 are distributed in one of the E-shaped core members, and the first magnetic core portion 12 and the second magnetic core portions 24, 25, 26 are distributed in another E shape. Core member. By arranging the first magnetically permeable core 1 and the second magnetically permeable core 2 at different ratios on the core member, it is also possible to provide an inductance effect different from that of Fig. 8a.

As shown in Figures 8c to 8d, it is similar to Figure 8b, with the difference that the coupled magnetic core in Figure 8c includes two sets of "L" shaped core members, and the coupled magnetic field in Figure 8d. The core body comprises two half-ringed core members. Inductive effects different from those of Fig. 8a can also be provided by core members of different shapes.

As shown in Figures 9a and 9b, which is similar to Figure 8e, the difference is that Figure 9a includes two sets of rectangular core members arranged side by side. Figure 9b includes two sets of annular core members arranged side by side, while the core members of Figure 10b are annular and sleeved. By different setting methods, it is also possible to provide an inductance effect different from that of Fig. 8a.

Incidentally, in addition to the first magnetic guiding core 1 and the second magnetic guiding core 2, there may be a third magnetic guiding core, which can be arranged on the core member for the needs of the electronic product, and can More precise adjustment to the desired inductance effect.

Through the technical means adopted in the present creation, the inductive device can be arranged for different needs of the electronic product by the first magnetic guiding core body 1 and the second magnetic guiding core body 2 having different magnetic permeability coefficients, and the inductance can be reduced. The number of required inductance effects can also reduce the number of coil turns, which not only reduces the cost of manual winding, but also reduces the parasitic capacitance generated by the windings, thereby improving the high-frequency performance of the inductive device and making the electronic products easier to reach Chemical. Further, by providing the first magnetic guiding core and the second magnetic guiding core separately to different core members, it is possible to manufacture them easily.

The above description is only for the preferred embodiment of the present invention, and those skilled in the art can make other improvements according to the above description, but these changes still belong to the creative spirit of the creation and the patents defined below. In the scope.

100, 100A‧‧‧inductive devices

1‧‧‧First magnetic core

11, 12, 13, 14‧‧‧ first magnetic core body

2‧‧‧Second magnetic core

21, 22, 23, 24, 25, 26‧‧‧Second magnetic core body

3‧‧‧Wire

4, 4A‧‧‧Insulated casing

41, 41A‧‧‧ winding

42‧‧‧Outlet slot

S‧‧‧Clamping space

1 is a perspective view showing an inductive device according to a first embodiment of the present invention; FIG. 2 is an exploded view showing an inductive device according to a first embodiment of the present invention; and FIG. 3 is a view showing the creation according to the present invention. A perspective view of an inductive device of a second embodiment; and a fourth embodiment showing an inductive device according to a second embodiment of the present invention Exploded view; Figures 5a through 10b are perspective views showing coupled magnetic cores of an inductive device in accordance with other embodiments of the present invention.

100‧‧‧Inductive device

1‧‧‧First magnetic core

2‧‧‧Second magnetic core

3‧‧‧Wire

4‧‧‧Insulated casing

42‧‧‧Outlet slot

Claims (11)

An inductive device comprising: a first magnetically permeable core; a second magnetically permeable core having a magnetic permeability different from the first magnetically permeable core, the first magnetically permeable core being magnetically coupled The second magnetic conducting core forms a magnetic circuit of the inductive device; and a wire wound around the first magnetic guiding core and the second magnetic guiding core. The inductive device of claim 1, further comprising an insulative housing disposed between the wire and the first magnetically permeable core and the second magnetically permeable core. The inductive device of claim 2, wherein the insulating housing further has a clamping space, and the first magnetic guiding core and the second magnetic guiding core system are disposed in the clamping space. The inductive device of claim 2, wherein the insulative housing has a winding groove on the outer surface for the wire to be wound around the insulative housing. The inductive device of claim 1, wherein the inductive device comprises at least two sets of wires. The inductive device of claim 5, wherein the one set of wires is insulated from the first magnetic core, and the other set of wires is insulated from the second magnetic core. The inductive device of claim 1, wherein the first magnetic core and the second magnetic core system are coupled to form a coupled magnetic core, the coupled magnetic core system comprising a plurality of cores combined with each other Body member. The inductive device of claim 7, wherein the first magnetic guiding core and the second magnetic guiding core are respectively located in different core structures. Pieces. The inductive device of claim 7, wherein the core members are in an open configuration and have at least two open ends, the open ends of the core members being correspondingly joined. The inductive device of claim 7, wherein the core members are in a closed configuration, and one of the core members is disposed side by side with the other of the core members. The inductive device of claim 7, wherein the core members are in a closed configuration, and one of the core members is sleeved with the other of the core members.