Inductive device

Abstract

The application discloses an inductance device, which comprises a cover, a base, a plurality of winding columns and a plurality of coils. Two sides of the base are respectively formed with a non-winding column. The plurality of winding columns are arranged on the base and are arranged at intervals between the non-winding columns. The cover is covered on the winding columns and the non-winding columns to form a body. The plurality of coils are respectively wound on the corresponding winding columns, and each coil extends out of the body. The body is composed of a mixture of nickel-iron alloy and insulating glue in a certain proportion. The non-winding column and the cover have a gap. Therefore, the mutual inductance value of the inductance device can be adjusted according to the proportion of the body material and the gap, and the overall volume can be reduced, the ripple current can be reduced, and the performance can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic components technology, and more particularly to an inductor device. Background Technology

[0002] Inductors are commonly used in various electronic devices. With the miniaturization and high efficiency of electronic devices, the design requirements for internal inductors have become more stringent. Therefore, how to miniaturize inductors while simultaneously improving efficiency and reducing losses is a problem that needs to be solved in this field.

[0003] In view of the problems caused by the prior art, this application proposes an inductor device to solve the problems caused by the prior art. Summary of the Invention

[0004] In view of the above problems, the purpose of this application is to provide an inductor that is miniaturized, reduces ripple current between coils, and improves performance.

[0005] To achieve the above objectives, this application provides an inductor device comprising a cover, a base, a plurality of winding posts, and a plurality of coils. A non-winding post is formed on each side of the base. The plurality of winding posts are disposed on the base and spaced apart from the non-winding posts. The cover fits over the winding posts and non-winding posts to form a body. The plurality of coils are wound around corresponding winding posts, each coil extending outward from the body. The body is composed of a nickel-iron alloy and an insulating colloid mixed in a specific ratio, and there is a gap between the non-winding posts and the cover.

[0006] In one embodiment of this application, a plurality of winding posts and a plurality of corresponding wound coils form a first winding group and a second winding group.

[0007] In one embodiment of this application, the coils of the first winding group and the second winding group extend along the outer walls on both sides of the body.

[0008] In one embodiment of this application, the coil of the first winding group bends backward along the outer wall of the body and extends to fit the body, while the coil of the second winding group bends downward.

[0009] In one embodiment of this application, the coils of the first winding group and the second winding group extend outward from the body and then bend downward.

[0010] In one embodiment of this application, multiple coils extend out of the body, bend backward and extend a predetermined distance along the outer walls on both sides of the corresponding body, and then bend downward to connect with a circuit board.

[0011] In one embodiment of this application, each coil has a first end and a second end, the second end extends out of the body at a position higher than the first end, and the preset distance of the second end is greater than the preset distance of the first end.

[0012] In one embodiment of this application, the winding post is in the shape of a long rib, and the winding post and the non-winding post are arranged in parallel.

[0013] In one embodiment of this application, the winding post and the non-winding post are perpendicular to each other and spaced a certain distance apart.

[0014] In one embodiment of this application, the winding post is rectangular or block-shaped.

[0015] In one embodiment of this application, the winding post has a first equivalent gap value, and the non-winding post has a second equivalent gap value, wherein the second equivalent gap value is the first equivalent gap value plus the gap value.

[0016] Based on the above, the inductor of this application can reduce the overall size and the mutual inductance value of the inductor can be adjusted according to the proportion and gap of the constituent materials of the body. The mutual inductance value can be adjusted according to different circuit requirements, which not only increases the flexibility of application, but also reduces the overall size of electronic equipment and simplifies circuit wiring. Attached Figure Description

[0017] Figure 1 This is a perspective view of the first embodiment of the inductor device of this application;

[0018] Figure 2 for Figure 1 A schematic diagram of the decomposition process;

[0019] Figure 3 From Figure 1 A schematic diagram viewed from the Z-direction;

[0020] Figure 4 for Figure 2 A schematic diagram of the combination of the winding post and the corresponding coil;

[0021] Figure 5 From Figure 1 A schematic diagram viewed from the X direction;

[0022] Figure 6 for Figure 1 A three-dimensional diagram from another perspective;

[0023] Figure 7 This is a top view schematic diagram of a second embodiment of the inductor device of this application;

[0024] Figure 8 This is a top view schematic diagram of the third embodiment of the inductor device of this application.

[0025] Explanation of reference numerals in the attached drawings: 1A, 1B, 1C - Inductor; 10, 10' - Body; 100 - Gap; 102 - Outer wall; 12 - Cover; 14 - Base; 142 - Non-winding post; 16, 16', 16” - Winding post; W, Wa, Wb, W' - Coil; W1 - First end; W2 - Second end; G1, G1' - First winding group; G2, G2' - Second winding group; D1, D2 - Preset distance; X, Y, Z - Direction; 9 - Circuit board. Detailed Implementation

[0026] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the essence of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail. Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0027] Please see Figure 1 and Figure 2 The inductor device 1A includes a cover 12, a base 14, multiple winding posts 16, and multiple coils W. Non-winding posts 142 are formed on both sides of the base 14. Multiple winding posts 16 are disposed on the base 14 and spaced apart from the non-winding posts 142. The cover 12 covers the winding posts 16 and non-winding posts 142 to form a body 10. Multiple coils W are wound around corresponding winding posts 16, and each coil W extends outward from the body 10. The body 10 is composed of a nickel-iron alloy and an insulating colloid mixed in a certain proportion. There is a gap between the non-winding posts 142 and the cover 12 (e.g., ...). Figure 3 (Chinese symbol 100).

[0028] Therefore, the inductor 1A of this application can reduce the energy loss of the inductor 1A when the magnetic field changes by adjusting the gap size and the material ratio of the body 10, and can also reduce the ripple current between the coils W, thereby reducing the size of the inductor 1A and improving the performance of the inductor 1A.

[0029] Please refer to the following: Figure 3 , Figure 3 Displayed as from Figure 1Viewed from the Z direction, the height of the non-wound posts 142 on both sides of the base 14 is lower than the height of the two winding posts 16. When the cover 12 is placed over the two winding posts 16 and the non-wound posts 142 on both sides, a gap 100 is formed between the non-wound posts 142 and the cover 12. The size of this gap 100 and the ratio of nickel-iron alloy to insulating colloid in the body 10 will determine the mutual inductance value of the inductor 1A. Therefore, in the manufacturing process of this application, the height of the non-wound posts 142 can be controlled by dispensing or by setting shims, so that a gap 100 of the preset size is generated between the non-wound posts 142 and the cover 12.

[0030] In this embodiment, the winding post 16 has a first equivalent gap value, and the non-winding post 142 has a second equivalent gap value. The second equivalent gap value is the first equivalent gap value plus the gap 100. In other words, the size of the gap 100 in this application can determine the size of the second equivalent gap value. An appropriate equivalent gap value can help control current fluctuations, reduce ripple current, and thus improve circuit stability.

[0031] Please see Figure 4 The diagram shows a combination of the winding post 16 and the corresponding wound coil W. When multiple coils W are wound around the corresponding winding posts 16, they form a first winding group G1 and a second winding group G2, respectively. Therefore, in this embodiment, the first winding group G1 and the second winding group G2 can form a two-phase inductor to handle voltages with different phases. For example, when the inductor device 1A receives a voltage signal with a phase difference of 180 degrees, the first winding group G1 and the second winding group G2 form an anti-coupling effect. When the current in the first winding group G1 increases, the current in the second winding group G2 decreases, resulting in opposite current changes. When current flows through the first winding group G1, the current generated by the mutual inductance effect in the second winding group G2 suppresses current fluctuations, reducing the overall ripple current on the coil W, thereby improving overall performance. In other embodiments, the first winding group G1 and the second winding group G2 can form a two-phase inductor with almost identical magnetic flux paths, self-inductance, and mutual inductance values. In other words, the energy storage capacity, mutual inductance energy, core loss, and winding loss of the two-phase inductors are almost identical. Through the mutual inductance and anti-coupling characteristics of the two-phase inductors, the dynamic characteristics of the inductor device can be improved, resulting in a faster dynamic current response.

[0032] In this embodiment, the winding post 16 is shaped like a long rib and is parallel to the non-winding post 142. The multiple winding posts 16 are of the same height and size, but their shape, length, number, and arrangement are not identical. Figure 4The embodiments shown are limited to those described above. In other embodiments, the inductor may include any number of winding posts. For example, when there are three winding posts and multiple coils are wound around the corresponding three winding posts, a three-phase inductor is formed; when there are four winding posts and multiple coils are wound around the corresponding four winding posts, a four-phase inductor is formed.

[0033] like Figure 4 As shown, the coils Wa and Wb of the first winding group G1 and the second winding group G2 extend along the outer walls 102 on both sides of the body 10. In other embodiments, the coils Wa of the first winding group G1 and the coils Wb of the second winding group can have various bending and extension patterns. For example, in some embodiments, the coil Wa of the first winding group G1 bends backward (in the Z direction) along the outer wall 102 of the body 10 and adheres to the body 10, while the coil Wb of the second winding group G2 bends downward (in the Y direction) along the outer wall 102 of the body 10; or in other embodiments, the coils Wa and Wb of the first winding group G1 and the second winding group G2 extend outward from the body 10 and then bend downward (in the Y direction). The coils Wa and Wb can be made of the same material, but have opposite or different specifications, such as winding direction, number of turns, and fold position. Alternatively, coils Wa and Wb can use the same specifications, including the input and output terminals, winding direction, number of turns, and folding position.

[0034] Please see Figure 5 and Figure 6 Multiple coils W extend from the body 10, bend backward, and extend a predetermined distance along the outer walls 102 on both sides of the corresponding body 10, before bending downward and connecting to a circuit board 9. Figure 5 The circuit board 9 is represented by a thick black dashed line. The coil W can be extended and bent to connect to the circuit board 9. The inductor 1A can be adjusted according to the design requirements of the circuit board 9 to determine the preset distance of the extension of the coil W.

[0035] Each coil W has a first end W1 and a second end W2. The second end W2 extends out of the body 10 at a position higher than the first end W1, and the preset distance D2 of the second end W2 is greater than the preset distance D1 of the first end W1. Therefore, when the inductor device 1A is applied to electronic devices, the preset distance D1 of the first end W1 and the preset distance D2 of the second end W2 can be adjusted according to the miniaturization requirements of electronic devices, thereby improving the overall space utilization.

[0036] Please see Figure 7 The diagram shown is a top view of the inductor device 1B, with the cover omitted. The difference between this embodiment and the first embodiment lies in the winding post 16' and the coil W'; therefore, identical components are represented by the same symbols and will not be described again below.

[0037] In this embodiment, the inductor device 1B includes a cover 12, a base 14, multiple winding posts 16', and multiple coils W', wherein the winding posts 16' are perpendicular to and spaced apart from the non-winding posts 142 on both sides of the base 14. The multiple coils W' are wound around corresponding winding posts 16', and each coil W' extends outward from the outer side of its respective winding post 16' to form a first winding group G1' and a second winding group G2'. Here, "extending outward" refers to extending towards... Figure 7 The inductor extends in the Z and -Z directions. Therefore, the inductor 1B can change the direction and position of the coil W' according to the design requirements of the circuit board, making the inductor 1B more flexible and adaptable to various electronic devices.

[0038] Please see Figure 8 The diagram shows a top view of the inductor 1C, omitting the cover which is not shown. The difference between this embodiment and the first embodiment lies in the reduced size of the winding post 16” and the body 10’; therefore, identical components are represented by the same symbols and will not be described again below. In this embodiment, the winding post 16” can be rectangular or square. Figure 8 It is presented in a block shape, but not in a limited way. As a result, the size of the cover and the base is greatly reduced, and the size of the body 10' formed when the cover covers the winding post 16” and the non-winding post 142 is also greatly reduced. Therefore, the reduction in size of the inductor 1C not only reduces production costs, but also greatly reduces the space occupied by the circuit board, allowing the electronic device to achieve higher power density in applications, thereby enhancing the performance of the electronic device.

[0039] In summary, the inductor of this application can effectively reduce its overall size, making it miniaturized. By adjusting the gap size and the proportion of the constituent materials of the inductor, the energy loss of the inductor when the magnetic field changes can be reduced, and the ripple current can be reduced, thereby improving the stability and performance of the circuit. At the same time, the reduction in the size of the inductor simplifies circuit design and wiring.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An inductor device, characterized in that, Include: One cover; A single body, wherein a non-winding post is formed on each of the two sides of the body; Multiple winding posts are disposed on the base and spaced apart between the non-winding posts, and a cover is provided to cover each of the winding posts and the non-winding posts to form a single body; and Multiple coils are wound around corresponding winding posts, and the multiple coils extend outward from the body. The body is composed of a nickel-iron alloy and an insulating colloid mixed in a certain proportion, and the non-wound post and the cover have a gap.

2. The inductor device according to claim 1, characterized in that, The plurality of winding posts and the corresponding wound coils form a first winding group and a second winding group.

3. The inductor device according to claim 2, characterized in that, The plurality of coils of the first winding group and the plurality of coils of the second winding group extend along the outer walls of both sides of the body.

4. The inductor device according to claim 2, characterized in that, The coil of the first winding group bends backward along the outer wall of the body and fits against the body, while the coil of the second winding group bends downward.

5. The inductor device according to claim 2, characterized in that, The coils of the first winding group and the second winding group extend outward from the body and then bend downward.

6. The inductor device according to claim 1, characterized in that, After the plurality of coils extend out of the body, they bend backward and extend a predetermined distance along the outer wall on both sides of the corresponding body, and then bend downward to connect with a circuit board.

7. The inductor device according to claim 1, characterized in that, Each of the coils has a first end and a second end, the second end extending out of the body at a position higher than the first end, and the preset distance of the second end is greater than the preset distance of the first end.

8. The inductor device according to claim 1, characterized in that, The winding post is in the shape of a long rib, and the winding post is arranged in parallel with the non-winding post.

9. The inductor device according to claim 1, characterized in that, The winding post is rectangular or square in shape.

10. The inductor device according to claim 1, characterized in that, The winding post and the non-winding post are perpendicular to each other and spaced a certain distance apart.

11. The inductor device according to claim 1, characterized in that, The winding post has a first equivalent gap value, and the non-winding post has a second equivalent gap value, the second equivalent gap value being the first equivalent gap value plus the gap value.

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