TW531759B - Improved iron core structure of energy-stored coil - Google Patents

Abstract

There is provided an improved iron core structure of energy-stored coil, which primarily integrates plural kinds of iron cores with different air coefficients to form a composite iron core. With the characteristic of high air coefficient iron core, it is easily achieve a predefined inductance by winding a less number of circles (and a larger line diameter). When the current is small and load is low, a stable current can be outputted due to the high air coefficient iron core. When the load is gradually increased, it is able to generate an output characteristic of small inductance, large current, and excellent dynamic loading capability due to low air coefficient iron core incorporated with a less number of winded circles and a larger line diameter.

Description

531759 V. Description of the invention < Field of invention > The present invention relates to an energy storage line, which refers to a type of inductance value which can vary with the load to stabilize the < description of the prior art > These three passive components, in addition to the extremely wide range of functions of modern inductor coils, are used to control the output of another larger health coil. They are used to generate different impedance characteristics by using different inductance storage (in 'to buffer current However, the current sense is generally shown in Figure 1, which is nothing but its air coefficient (in which, it is a single; and the air coefficient The inductance value of the large iron core of the logarithmic car on the same wire, but relatively, it decays faster and easily reaches the rest of the iron core. It can tolerate larger current and the iron core of the inductor on the same wire. Improve the structure, especially the structure that changes the output voltage characteristics when the output voltage changes. In various electronic circuits based on traditional electronic circuit, various inductors have a balance The phase-capacitance function is energy storage. Generally, when the voltage characteristics are applied, the coil can be light-loaded at different output voltages (when a higher inductance is needed and heavy-loaded, but must reduce the obstacle of electrical transmission) to achieve the above. The iron core 5 of the stable energy storage coil (the outer part is made of a single material, so the value is generally about 10 to 10,000). In terms of the influence of the iron core, the number of air system windings is more likely to produce a larger The current withstand is small, the inductance is small; on the contrary, the air coefficient is small, the winding number is small, and the inductance value is small, but it is not easy to decay.

531759 V. Description of the invention (2) Therefore, in order to balance the current change of different loads, the basic structure common to current output coils is the core with a low air coefficient material. By increasing the number of coil windings (increasing the inductance), Increase the dummy load to meet the characteristic requirements at light load. However, this structure has the following insurmountable shortcomings: 1. Large inductance and dummy load increase the overall impedance and reduce the output efficiency. 2. The larger impedance makes the dynamic load capacity worse and it is easy to produce oscillation.

3. Output current is limited. In view of the above-mentioned shortcomings in the iron core structure of the conventional energy storage coil, the inventor researched and improved these shortcomings, and finally the invention came into being. < General description of invention >

The present invention aims to provide an improved core structure of an energy storage coil, which is mainly composed of a plurality of cores made of different air coefficient materials and integrated into one to form a composite core made of high air coefficient cores. , Make it wound less turns (and larger wire diameter) and easily reach the preset inductance value, when the light current is small load, the iron core with high air coefficient acts to stabilize the output current, and when the load gradually Aggravating, the inductance gradually decays and saturates, and the high-air-coefficient iron core loses its effect, and gradually turns to the low-air-coefficient iron core. Finally, under the heavy current heavy load, the low-air iron is completely used: less coordination The number of turns and the larger wire i can produce small inductance

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V. Description of the invention (3) The output characteristics such as high current and excellent dynamic load capacity can completely improve the lack of iron in the traditional single air coefficient material. This is the main purpose of the present invention. According to the improved iron iron structure of the energy storage coil according to the present invention, since the number of winding wires required is small, in addition to helping to simplify processing and reducing production costs, it can also effectively reduce the volume of the overall energy storage coil. To increase the flexibility of the space planning of the circuit, this is another purpose of the present invention. As for the detailed structure, operation and effect of the present invention, it can be fully understood by referring to the following description made with reference to the drawings: < Description of specific embodiments > As shown in FIG. 1, it is a conventional energy storage coil The structure of the iron core, its composition and its defects have been described above, and will not be repeated here.

Figure 2 is an exploded view of the core structure of the present invention. As shown in the combination diagram of the core with Figure 3, it is obvious that this creation includes at least the first core i and the second core. Second and second parts, where the first iron core 1 is made of a material with a high air coefficient (eg, ferrite zinc alloy, Ferrite), and the flat iron side 2 is provided with a flat joint surface 1 1, and the second iron core 2 is Made of low air coefficient material (: the joint surface 2 i of the core 2 is relatively bonded (can be glued or other suitable: iron powder, Iron p0Wder), and one side is provided with a corresponding joint surface 2 1 to make the first The iron core i is bonded with the joint surface 丄 丄 and the second iron core) to form a core structure with a composite material.

Page 6 531759 V. Description of the invention (4) 〇 The 4th figure is a complete embodiment of the present invention. As shown in the figure, the first iron core 1 has a high air coefficient characteristic, which can reduce the number of turns and the The large-diameter enameled wire 4 is wound to reach a preset inductance value, so that when the current is light and the load is small, the output current is stabilized by the action of the first iron core 1. When the load is gradually increased, the inductance is gradually attenuated, saturated, and high. The first core 1 with an air coefficient then loses its effect, and gradually turns to the second core 2 with a low air coefficient. Finally, under heavy currents with a large current, the second core 2 is completely matched with fewer windings. Number and larger wire diameter of the enameled wire 4 can produce output characteristics such as small inductance, current and excellent dynamic load capacity. FIG. 5 is a diagram of another preferred embodiment of the present invention. As can be seen from the figure, the present invention can provide at least one intermediate between the first iron core 1 and the second iron core 2 with greatly different air coefficient values. The third iron core 3 with an air coefficient makes it work separately when the current load changes, so that the whole can have a more stable linear output. The composite iron core structure of the present invention is composed of 2 to 5 iron cores with different air coefficient materials, and the effect is the best. It can be known from the above that the improved structure of the iron core of the energy storage coil of the present invention does have the effects of being suitable for large and small different loads, good dynamic load capacity, large output current, etc., and it has not been used in the public, and is patented. The law stipulates that granting a quasi-patent is a virtue

531759_ 5. Description of the invention (5) The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of implementation of the present invention. That is to say, all equivalent changes and modifications made in accordance with the scope of patent application of the present invention are covered by the scope of patent of the present invention. < Brief description of the diagram > FIG. 1 is a schematic diagram of an external appearance of a core of a conventional energy storage coil. Fig. 2 is an exploded view of the core structure of the present invention. Fig. 3 is a combination diagram of the iron core of the present invention.

Figure 4 is a diagram of a complete embodiment of the present invention. Fig. 5 is a diagram of another preferred embodiment of the present invention. < Comparison table of the illustrated components > 1 ..... First iron core 3 ..... Third iron core 11, 2 1 .... Joint surface 4 ..... Enameled wire 2 ... ..Second core 5 ..... core

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Claims (1)

531759 VI. Application patent scope 1. An improved core structure of an energy storage coil, which at least includes: a first core with a joint surface on one side; a second core with a joint surface on one side, which can correspond to Combined on the joint surface of the first iron core; It is characterized in that the first iron core and the second iron core are made of materials with different air coefficients. 2. The improved core structure of the energy storage coil according to item 1 of the scope of the patent application, wherein at least one third core can be provided between the first core and the second core, and the second core The air coefficient value of the core material is between the first and second iron cores. 3. The improved core structure of the energy storage coil as described in item 2 of the scope of the patent application, wherein the number of layers of the iron core of different air coefficient materials provided between the first iron core and the second iron core is 1 to 3. Layers.