JPH01270306A - Bobbin for winding - Google Patents

Abstract

PURPOSE:To eliminate the reactive winding of electromagnetic characteristics and to contrive improvement in the degree of coupling between the inner winding and the outer winding by a method wherein a barrier for preventing wirings from winding around is provided to both inner bobbin and outer bobbin at a part corresponding to the gap of the magnetic material core to be fitted to the bobbin. CONSTITUTION:A barrier 2a is provided on the inside bobbin 2, and at the same time, a thick flange-like barrier 4b is provided as a barrier means for preventing windings from winding around on the whole circumference of an outside bobbin 4 in order to prevent the coiling of a winding wire 5 on the corresponding part of the gap 1a provided on the center part of a magnetic material core 1. As a result, both of the inside winding wire 3 and the outside winding wire 5 are not coiled on the corresponding part of the gap 1b of the magnetic material core 1 of the inside and the outside bobbins 2 and 4, and consequently, the reactive winding in electromagnetic characteristics can be eliminated, the degree of coupling of both inside and outside windings can be improved, and this constitution contributes for prevention of short circuit generating between each winding.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a winding bobbin, particularly, a double-sided coil which is used for electrical insulation and efficiency of the winding work when winding a magnetic material core. This invention relates to a bobbin for heavy structure winding.

[Conventional technology]

Figure 2 shows a conventional 2F system used, for example, in transformers.
A sectional view of an example of a fi structure winding bobbin is shown. In the figure, 1 is a magnetic material core such as a ferrite core, 2 is an inner bobbin, 3 is an inner winding wound on the inner bobbin 2, and 4 is a magnetic material core such as a ferrite core.
is an outer bobbin coaxially fitted onto the inner bobbin 2, and 5 is an outer winding wound on the outer bobbin 4. Magnetic material core 1 that fits into the center of this double structure bobbin
A gap 18 is provided at the center of the axial joint for matching the inductance values of the coils. The inner bobbin 2 is provided with a thick flange-shaped barrier 2a for preventing the winding 3 from being wound around the gear 1a. Further, the outer bobbin 4 is provided with each thin flange-shaped barrier 4a for preventing a short circuit between the windings of the winding 5 wound on the bobbin 4. Regarding the latter short-circuit prevention barrier 4a, there is also one that is disposed on the inner bobbin 2.

The conventional double-structure bobbin for @ wire is constructed as described above, and when winding/assembling the wire, the inner/outer windings 315 of the inner bobbin 2 and the outer bobbin 4 are directed upward from the lower end of the hobbin toward ζ11. or from the -F end to the F end.
So, what about the winding wire crossing shown below installed on the barrier of No. 41? The next pickpocket through the FI Natonibe line! 1. to 8
Pass the line, raise the winter line one by one with the above value < H, and punish the current number.

Next, the winding wire 3/'5 of the Sowazomu is wound -V, and the inner hobbin 2 and the outer hobbin 4 are fitted and combined, and the magnetic material core 1 is inserted so that the split surface is in precise contact with the inner hobbin 2 and the outer hobbin 4. α, fit it, and then put it together.)

(Problem to be Solved by the Invention) However, in such a conventional double-structured bobbin, when the inductance value adjustment gap 1a is provided in the center of the magnetic material core 1 as shown in 11η, Since the inner bobbin 2 has a structure in which a barrier 2a for preventing the mist wire 3 from sticking is provided, in the outer bobbin 4, the b-envelope 5a portion or the 4 The 6th and 9th who are old are stoned on the outside hobbin 4'
4. (In the case of the III-4 wire 5, there was a problem that the electromagnetic characteristics caused the cracks 5a to become ineffective and the connection between the inner winding 3 and the outer winding 5 to deteriorate.

This invention was made in order to solve the problems of the conventional example as described below.
To provide a bobbin for external wires with this type of double structure, which can be expected to have a high degree of direction, and can also prevent short circuits between the four wires by dividing the winding of the waste winding at each barrier. It is an object.

(Means for Solving the Problems) Therefore, the winding m according to the present invention:, IT! In the structural bobbin, in order to prevent the wire from bending to the corresponding part of the gap provided at the center of the magnetic core that fits into each of the inner and outer bobbins, a wire is installed on both the inner and outer hobbins. The purpose is to achieve the above-mentioned [Object 1] by arranging the "walls F and 1" for preventing the sagging of the wires.

[Effect]

In the dual-structure bobbin for winding according to the present invention having the above-described structure, a wire winding is provided on both the inner bobbin and the outer bobbin in the gap corresponding portion of the magnetic material core that fits into the hobbin. Since there are various barriers for prevention, the windings are not wound around the parts such as 1 and 1, and there is no wire that is ineffective in terms of electromagnetic characteristics, and the coupling between the inner and outer windings is prevented. degree will improve.

(Example) Hereinafter, the present invention will be explained based on examples.

(44 configuration) FIG. 1 shows a sectional view of an example of a transformer assembled using an embodiment of the double-structure bobbin for winding according to the present invention. In the figure, the same reference numerals as in FIG. 2 of the prior art example indicate the same or equivalent components, and redundant explanation will be omitted.

4b is provided in the center of the magnetic material core l for the outer bobbin 4 as well as the barrier 2a provided for the inner bobbin 2, and a winding wire is provided at the corresponding portion of the gap la. A thick flange-shaped barrier is provided around the entire circumference of the outer bobbin 4 to prevent it from being wound.

(Function) In the double structure bobbin for winding configured as described above, the inner ω wire 3 and the outer winding are connected to the gear hub 1a of the h magnetic material core 1 in the inner and outer bobbins 2.4, respectively. Since both wires 5 are no longer in contact with each other, there is no ineffective winding with electromagnetic characteristics l2, the degree of coupling between the inner and outer wires is improved, and it also contributes to preventing short circuits between the &a edge wires.

(Other Actual tM Examples) In addition, in the ten examples, we have explained the case of a transformer. It goes without saying that the same effects as in the embodiment described above can be achieved.

(Effects of the Invention) As described above, according to the present invention, barrier means for preventing winding from winding is provided on both the inner bobbin and the outer bobbin of the two-way structure winding bobbin, and the magnetic material core is Since the winding is not wound around the portion corresponding to the gap, there is no winding that is ineffective in terms of electromagnetic characteristics, and the degree of coupling between the inner winding and the outer winding is improved. Furthermore, since the surface barrier divides each winding with respect to the winding width, there is an effect of reducing the risk of short circuit between windings.

[Brief explanation of the drawing]

Figure 1 is a sectional view of an example of a transformer using a double-structure bobbin for winding according to an embodiment of Jin's invention, and Figure 2 is a cross-sectional view of an example of a transformer using a conventional double-structure bobbin for winding. FIG. 3 is a cross-sectional view of the transformer. 1 is a magnetic material core, 1a is a gap, 2/4 is an inner/outer bobbin, 2 a / 4 b is each barrier (barrier), 315
are the inner/outer windings. Note that in each figure, the same reference numerals indicate the same or equivalent components.

Claims (1)

[Claims] In a dual structure bobbin for winding comprising an inner and an outer bobbin each having a magnetic core and each having a winding wire and fitting coaxially with each other, the magnetic material core fitting into the center of the bobbin is provided. Winding prevention barrier means for preventing each of the windings from being wound around a portion corresponding to a gap portion provided at the axial joint portion is provided on both the inner and outer bobbins, respectively. Bobbin for winding.