Surface-mounted inductance coil and mold-pressing inductor
An inductive coil, patch technology, applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor components, circuits, etc., can solve the problems of increasing coil length, poor working efficiency, large size and width, etc. Achieve the effect of large temperature rise current and saturation current, high working efficiency and small product size
Pending Publication Date: 2016-11-23
TRIO TECH SUZHOU
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Problems solved by technology
This method not only increases the length of the coil, but also has a large size and width, which does not meet the requirements of the characteristics; the resistance of the product is too large, its DC superposition characteristics are too small, the temperature is high, and the working efficiency is extremely poor, which directly affects the use of inductors. performance
Method used
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Embodiment Construction
[0028] Such as figure 2 As shown, the SMD inductive coil 1 of this embodiment is composed of a metal wire, the metal wire has two ends 2, the end legs 2 extend in the horizontal direction and are bent and reversely reciprocated to form a hollow coil 1 , the legs 2 at both ends are perpendicular to the surface of the coil 1; and the legs 2 at both ends face the same direction and are parallel to each other; the coil 1 has at least two layers or other layers.
[0029] In this embodiment, the metal wire is a round enameled wire, and the shape of the coil 1 can be oval, such as Figure 4 shown.
[0030] From Figure 5 , 6 It can be seen that the two ends 2 are flat.
[0031] Apply the molded inductor of the above-mentioned chip inductor coil 1, such as Figure 7-11 As shown, the inductance coil 1 is wrapped and sealed in the shell of the magnetic solid body 3; the two sections of feet 2 of the inductance coil 1 protrude from the same surface of the magnetic solid body 3 and ...
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The invention discloses a surface-mounted inductance coil and a molded inductor. The surface-mounted inductance coil is made of a metal wire, the metal wire is provided with two end pins, the end pins extend along a horizontal direction and then are reversely bent and wound in a reciprocating manner to form a hollow coil; two end pins are perpendicular to the coil plane; and the two end pins are towards the same direction and parallel to each other; and the coil is provided with at least two layers. Through the adoption of the abovementioned pin-out mode, a shorter coil pin-out path can be obtained, and the size of the molded inductor is smaller, the direct current resistance is lower, the temperature-rise current and the saturation current are larger, and the working efficiency is higher.
Description
technical field [0001] The invention relates to the technical field of inductance components, in particular to designing a chip-type inductance coil and a molded inductor using the chip-type inductance coil. Background technique [0002] Inductor is the most common component in electronic devices and an important component in the circuit, which can achieve the functions of filtering, energy storage, matching and resonance. At present, the inductors produced are mainly wire-wound inductors. The structure of wire-wound inductors is to wind enameled wires on the outside of the magnetic conductor to form I-shaped and cylindrical inductors. However, since the coil and the magnetizer of this type of wirewound inductor are not integrated, there are many problems such as low inductance value, poor resistance to DC saturation, difficulty in ensuring consistency of product parameters, and low processing and production efficiency. Then, the one-piece inductor made by one-piece powder ...
Claims
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IPC IPC(8): H01F27/28
CPCH01F27/28H01F27/2828
Inventor 林伙利林杰周鸿波
Owner TRIO TECH SUZHOU