Low-loss and high-efficiency rod-shaped inductor
By setting a heat dissipation gap in the flat coil of the rod inductor, the problems of traditional inductors with temperature rise and short circuit between turns at high frequencies are solved, and a low loss and high efficiency inductor design is achieved.
Patent Information
- Application Number
- CN202421311754.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Traditional rod inductors have problems such as temperature rise, turn short circuit and increased loss at high frequencies, resulting in reduced efficiency.
A flat coil is used as the inductive winding, and a heat dissipation gap is set between its adjacent two turns to increase the heat dissipation area and avoid the risk of short circuit between turns.
By enhancing heat dissipation performance, reducing temperature rise, avoiding inter-turn short circuits, and improving the efficiency and stability of the inductor.
Smart Images
Figure CN222672775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of inductors, in particular to a low-loss and high-efficiency rod-shaped inductor. Background Art
[0002] Rod inductors are a common and important electronic component, widely used in power circuits, filters, converters and other fields, and play a role in storing and transmitting energy. Traditional rod inductors are tightly wound with round or flat wires, without inter-turn heat dissipation gaps, small heat dissipation area, and high temperature rise under high current. There is also a risk of inter-turn short circuits during processing and aging, and there will be increased losses and reduced efficiency at high frequencies. Utility Model Content
[0003] Aiming at the problems of temperature rise, inter-turn short circuit, increased loss at high frequency, etc. in the prior art solution of the densely wound rod-shaped inductor, the utility model provides a low-loss and high-efficiency rod-shaped inductor.
[0004] The utility model provides the following technical solution: a low-loss and high-efficiency rod-shaped inductor, comprising a rod-shaped magnetic core, a frame arranged at one end of the magnetic core, and a flat coil wound on the outer surface of the magnetic core, wherein the flat coil extends spirally along the axial direction of the magnetic core, a heat dissipation gap is arranged between two adjacent turns of the flat coil, and the spacing between any two adjacent turns is the same.
[0005] Preferably, the distance between two adjacent turns of the flat coil is greater than 1.2 times the thickness of the flat coil conductor.
[0006] Preferably, both ends of the flat coil extend to the frame and protrude from a side of the frame away from the magnetic core to form pins.
[0007] Preferably, the magnetic core is bonded to the skeleton and the flat coil.
[0008] Preferably, a positioning column is further provided on a side of the skeleton away from the magnetic core.
[0009] The beneficial effects of the utility model are as follows: a flat coil is selected as the inductor winding, and a heat dissipation gap is provided between two adjacent turns of the flat coil, so as to increase the heat dissipation area of the coil, enhance the heat dissipation performance, reduce the temperature rise, avoid the problem of short circuit between turns during the processing and use of the inductor, and improve the efficiency and stability of the inductor under the same volume. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 A three-dimensional schematic diagram of an embodiment of an inductor.
[0011] Figure 2 FIG. 4 is a front view of an inductor according to an embodiment of the present invention.
[0012] Figure numerals: 10, magnetic core; 20, skeleton; 21, positioning column; 30, flat coil; 31, heat dissipation gap; 32, pin. DETAILED DESCRIPTION
[0013] The following is a more detailed description of the implementation of the utility model in conjunction with the drawings and the figure marks, so that those skilled in the art can implement it after reading this specification. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0014] The utility model provides Figure 1-2 A low-loss and high-efficiency rod-shaped inductor shown in the figure comprises a rod-shaped magnetic core 10, a frame 20 arranged at one end of the magnetic core 10, and a flat coil 30 wound on the outer surface of the magnetic core 10, wherein both ends of the flat coil 30 extend to the frame 20 and protrude from the side of the frame 20 away from the magnetic core 10 to form pins 32. Compared with the round wire and flat wire used in the traditional rod-shaped inductor, the flat coil has a larger cross-sectional area, generates less heat at the same current, and can carry a larger current.
[0015] Specifically, the flat coil 30 spirally extends along the axial direction of the magnetic core 10, and a heat dissipation gap 31 is provided between two adjacent turns of the flat coil 30, so as to increase the contact area between each turn of the coil and the air, enhance the heat dissipation performance, and the spacing between any two adjacent turns is the same, so that the heat dissipation gap 31 between turns is evenly distributed, which is conducive to automated processing. Compared with the prior art, it not only reduces the temperature rise, but also avoids the problem of short circuit between turns during inductor processing and use, and improves the efficiency and stability of the inductor under the same volume.
[0016] Preferably, the interval H1 between two adjacent turns of the flat coil 30 is greater than 1.2 times the thickness H2 of the flat coil wire, which has better heat dissipation performance.
[0017] Preferably, the magnetic core 10 and the frame 20 are bonded by adhesive, and the flat coil 30 and the magnetic core 10 are bonded by adhesive, so as to facilitate processing.
[0018] Preferably, a positioning column 21 is further provided on the side of the frame 20 away from the magnetic core 10 , so that installation is more convenient.
[0019] The above are one or more embodiments of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A low-loss and high-efficiency rod-shaped inductor, characterized in that: It includes a rod-shaped magnetic core, a frame arranged at one end of the magnetic core, and a flat coil wound on the outer surface of the magnetic core. The flat coil extends spirally along the axial direction of the magnetic core. A heat dissipation gap is arranged between two adjacent turns of the flat coil, and the spacing between any two adjacent turns is the same.
2. A low-loss and high-efficiency rod-shaped inductor according to claim 1, characterized in that: The distance between two adjacent turns of the flat coil is greater than 1.2 times the thickness of the flat coil wire.
3. A low-loss and high-efficiency rod-shaped inductor according to claim 1, characterized in that: Both ends of the flat coil extend to the frame and protrude from a side of the frame away from the magnetic core to form pins.
4. The low-loss and high-efficiency rod-shaped inductor according to claim 1, characterized in that: The magnetic core is bonded to the frame and the flat coil.
5. The low-loss and high-efficiency rod-shaped inductor according to claim 1, characterized in that: A positioning column is also arranged on a side of the frame away from the magnetic core.