A new method of manufacturing wire-wound inductors

Abstract

The invention provides a novel wire wound inductor. The novel wire wound inductor is characterized by comprising a bobbin, a wound wire and pins. The bobbin is in a flat shape. Wiring holes and pin holes are formed in the bobbin. The pin holes are communicated with the wiring holes. One end of each pin is arranged in the corresponding wiring hole, and the other end of each pin extends out of the bobbin through the corresponding pin hole. The wound wire comprises a body part and two positioning parts. The body part is wound around the bobbin. One end of each of the two positioning parts is connected with the body part, and the other ends of the two positioning parts extend into the wiring holes respectively and are twined with the pins, so a conductive structure is formed. The novel wire wound inductor is simple in structure, high in mechanical strength, large in wire winding space, convenient to machine and small in occupied space; besides, connection between the wound wire and the pins is firm. The invention further provides a manufacturing method of the novel wire wound inductor which is convenient to machine and capable of improving working efficiency, reducing the production cost and enhancing the fastness degree of connection between the wound wire and the pins.

Description

technical field [0001] The invention relates to the technical field of inductors, and more specifically, to a wire-wound inductor and a manufacturing method thereof. Background technique [0002] Inductors have functions such as filtering, oscillation, delay, and trapping, and are widely used in electronic circuits. For example, in an RF filter feed circuit, an inductor must be used to power a diode. At present, inductors generally include color ring inductors, color code inductors, magnetic core inductors, and air core inductors. [0003] Some products have higher requirements on inductance performance, such as radio frequency products, etc.; color-coded inductors are generally used in radio frequency filter feed circuits at present. However, due to the large range of ambient temperature, the ambient temperature is generally -55°C to +70°C; in high-temperature and low-temperature environments, the performance indicators of color-coded inductors are poor, and the power cap...

AI Technical Summary

Problems solved by technology

However, due to the large range of ambient temperature, the ambient temperature is generally -55°C to +70°C; in high-temperature and low-temperature environments, the performance indicators of color-coded inductors are poor, and the power capability and rated current cannot meet the use requirements. Self-resonance The frequency is low; after the high and low temperature impact test, the color code inductance has plastic discoloration and burnout, etc.

Therefore, the current inductor needs to increase the inductance and increase the winding length, but the current inductor skeleton winding space is insufficient. For small-volume products, the inductor volume is strictly limited, and the inductance cannot be increased simply by directly increasing the inductor size.

In addition, the existing inductors still have disadvantages such as poor mechanical strength, easy damage to the winding and pin connections, easy loosening of the winding and not being close to the skeleton, inconvenient processing and low production efficiency, etc.

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