Integrated double-engine chip inductor
The shell design is abolished by coaxial winding of double-layer coil and nanocoating technology, which solves the problem of coplanar difference in pads in dual-engine inductor structures, achieves high coupling coefficient and dimensional consistency, improves the stability of the inductor and circuit performance, and reduces production costs.
Patent Information
- Application Number
- CN202421515468.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing dual-engine inductor structure design has problems such as poor coplanar pads, high risk of earthquake resistance and drop resistance, unsatisfactory coupling effect, poor consistency of size and characteristics, high investment costs and low efficiency.
The coaxial winding double-layer coil and high-performance nanocoating technology are adopted to eliminate the shell design, and the coil pin end is directly connected to the electrode, combined with the L-shaped or sheet-shaped electrode structure to achieve high coupling coefficient and dimensional consistency, and a clean production process is adopted.
It greatly saves space, has a strong structure, high coupling coefficient, and good consistency in size characteristics. It is suitable for high-power chips, improving the circuit's signal screening, noise filtering and electromagnetic interference suppression capabilities, and reducing production costs.
Smart Images
Figure CN223230200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chip inductors, and in particular to a method for preparing an integrated dual-engine chip inductor. Background Art
[0002] The Dual-Engine inductor features a minimalist and innovative design, improving upon the traditional two-in-one, integrated inductor. The original design combined two separate, integrated inductors back-to-back, covered with a housing for surface-mount mounting (SMT). This design suffers from poor pad coplanarity, increased risk of shock and drop resistance, suboptimal coupling, reliance on manual labor, high project investment costs, low efficiency, and poor dimensional and characteristic consistency. Summary of the Invention
[0003] The purpose of the utility model is to provide an integrated dual-engine chip inductor with a reasonable structure, good use effect and small size.
[0004] To achieve the above objectives, the present invention provides a technical solution: an integrated dual-engine chip inductor, which includes a main body and a coil. The main body is provided with four electrodes at the bottom end of the main body, and two coils are embedded in the main body, with the pin ends of the coils vertically downwardly connected to the electrodes.
[0005] The axes of the two coils are located on the same straight line.
[0006] The pin ends of the two coils are located on the same side of the main body. The pin ends of the coils are vertically downward and then bent horizontally to form a contact surface, which is connected to the electrode.
[0007] A concave heat dissipation groove is provided at the center of the bottom of the main body, and two electrodes at the same end are respectively located on both sides of the heat dissipation groove.
[0008] The electrode is L-shaped, with its vertical walls located at the lower parts of the side walls on both sides of the main body and its horizontal walls located at both ends of the bottom of the main body.
[0009] The electrodes are in sheet shape and are located at both ends of the bottom of the main body.
[0010] The bottom of the electrode is flush with the surface of the main body or protrudes from the surface of the electrode.
[0011] The dual-engine inductor of this utility model adopts a coaxially wound double-layer coil. The wire (pin end) is directly led out from the bottom of the device mounting and flatly attached to the bottom to form an electrode, replacing the traditional process of welding the sheet and the coil to form the electrode. At the same time, the main body adopts high-performance nano-coating full-coverage technology, and no outer shell is required, which greatly saves space. The volume is saved by more than 20% with the same characteristics. It has a solid structure, a high coupling coefficient, and good consistency in dimensional characteristics. It has the advantages of high efficiency, small size, and the ability to respond to large current changes, making it more suitable for high-power chip operation. It is a core component for signal screening, noise filtering, current stabilization and electromagnetic interference suppression in the circuit. At the same time, it can realize clean production and intelligent manufacturing, and significantly improve quality and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0013] Figure 2 This is a schematic diagram of the coil distribution of the present utility model.
[0014] Figure 3 It is a schematic diagram of the internal structure of the utility model. DETAILED DESCRIPTION
[0015] The present invention will be further described below in conjunction with all the accompanying drawings. The preferred embodiments of the present invention are as follows:
[0016] The embodiments described in this embodiment with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be understood as limiting this patent.
[0017] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.
[0018] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.
[0019] See attached Figure 1 To the attached Figure 3The integrated dual-engine chip inductor described in this embodiment includes a main body 1 and a coil 3. The main body 1 is provided with four electrodes 2 at the bottom, one at each end of the bottom. There are two coils 3, both embedded in the main body 1, with the axes of the two coils 3 aligned on the same straight line. The pin ends of the two coils 3 are located on the same side of the main body 1. The pin ends of the coils 3 extend vertically downward and then bend horizontally to form a contact surface, which is connected to the electrode 2. The pin ends of the coils 3 extend vertically downward to connect to the electrode 2. The electrode 2 is L-shaped, with its vertical walls located at the lower part of the side walls on both sides of the main body 1 and its horizontal walls located at both ends of the bottom of the main body 1. Alternatively, the electrode 2 is sheet-shaped and located at both ends of the bottom of the main body 1. The bottom of the electrode 2 is flush with the surface of the main body 1 or protrudes from the surface of the electrode 2. A concave heat dissipation groove 4 is provided at the center of the bottom of the main body 1, with the two electrodes 2 at the same end located on either side of the heat dissipation groove 4.
[0020] The dual-engine inductor of this utility model adopts a coaxially wound double-layer coil. The wire (pin end) is directly led out from the bottom of the device mounting and flatly attached to the bottom to form an electrode, replacing the traditional process of welding the sheet and the coil to form the electrode. At the same time, the main body adopts high-performance nano-coating full-coverage technology, and no outer shell is required, which greatly saves space. The volume is saved by more than 20% with the same characteristics. It has a solid structure, a high coupling coefficient, and good consistency in dimensional characteristics. It has the advantages of high efficiency, small size, and the ability to respond to large current changes, making it more suitable for high-power chip operation. It is a core component for signal screening, noise filtering, current stabilization and electromagnetic interference suppression in the circuit. At the same time, it can realize clean production and intelligent manufacturing, and significantly improve quality and reduce costs.
[0021] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any changes made based on the shape and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. An integrated dual-engine chip inductor, comprising a main body (1), characterized in that: It also includes a coil (3), wherein the bottom of the main body (1) is provided with electrodes (2), there are four electrodes (2), which are respectively located at the two ends of the bottom of the main body (1), there are two coils (3), both are embedded in the main body (1), and the pin ends of the coils (3) are vertically downward and connected to the electrodes (2); the axes of the two coils (3) are located on the same straight line; the pin ends of the two coils (3) are located on the same side of the main body (1), the pin ends of the coils (3) are vertically downward and then horizontally bent to form a contact surface, and the contact surface is connected to the electrode (2); a concave heat dissipation groove (4) is provided at the center of the bottom of the main body (1), and the two electrodes (2) at the same end are respectively located on both sides of the heat dissipation groove (4).
2. The integrated dual-engine chip inductor according to claim 1, characterized in that: The electrode (2) is L-shaped, with its vertical walls located at the lower parts of the side walls on both sides of the main body (1), and its horizontal walls located at both ends of the bottom of the main body (1).
3. The integrated dual-engine chip inductor according to claim 1, characterized in that: The electrodes (2) are in sheet form and are respectively located at two ends of the bottom of the main body (1).
4. The integrated dual-engine chip inductor according to claim 1, characterized in that: The bottom of the electrode (2) is flush with the surface of the main body (1) or protrudes from the surface of the electrode (2).