The invention relates to a transformer and a transformer bobbin thereof, in particular to a transformer and a transformer bobbin thereof in which a plurality of windings at the same wire outlet part can be specifically isolated.
At present, a transformer is not implemented only with a single winding any more but in multiple windings to meet the diversified requirements of the power, and the level of power conducted by each winding is different from that of another. Therefore, the transformer with multiple windings is sleeved with an isolation sleeve at the tail end of each winding during winding, so that interference among the windings is avoided.
However, this approach results in a failure to produce transformers automatically with machines.
In addition, patent No. CN 203760282 discloses a bobbin which can prevent winding from contacting each other during wire outgoing, but the bobbin is only suitable for the wire outgoing of a single winding and cannot be used for a transformer structure in which wires of multiple windings on the same side are led out.
The major object of the invention is to solve the problem that a conventional bobbin structure cannot perform isolation protection on multiple windings on the same side during wire outgoing.
To achieve the above object, the present invention provides a transformer, including a transformer bobbin, a core mounted on the transformer bobbin, a winding, at least one first sub-winding and a second sub-winding. The transformer bobbin includes a winding part, a first wire outlet part connected to one side of the winding part, and a second wire outlet part connected to the other side of the winding part where is not provided with the first wire outlet part. The second wire outlet part is provided with an inclined guiding surface facing the winding part, a first partition plate arranged on the inclined guiding surface and a wire avoiding groove arranged on one side of the inclined guiding surface 233 where is close to the winding part, and the second wire outlet part is divided into a first wire outlet area and a second wire outlet area by the first partition plate. The wire avoiding groove is only arranged in the first wire outlet area. The first partition plate is provided with a wire supporting notch. The winding is arranged on the winding part and is led out through the first wire outlet part, and the first sub-winding includes a first winding segment which is wound on the winding part and two first wire outlet segment respectively connected with the first winding segment and extended to the first wire outlet area through the wire avoiding groove. The second sub-winding includes a second winding segment which is wound on the winding part, and a second outlet segment connected with the second winding segment, and borne against the wire supporting notch as well as extended in the second wire outlet area.
In one embodiment, the transformer is provided with the first sub-windings, and the second wire outlet part is provided with a second partition plate which is positioned on the inclined guiding surface where is arranged in the first wire outlet area, the inclined guiding surface within the first wire outlet area is divided into a plurality of winding areas by the second partition plate, and each of the first sub-windings is arranged in one of the winding areas.
In one embodiment, the first wire outlet part and the second wire outlet part are respectively provided with a plurality of wire leading posts and a plurality of wire joining posts.
In one embodiment, the second wire outlet part is provided with a third partition plate which is arranged in the second wire outlet area and not positioned in the inclined guiding surface, and the second wire outlet area is divided into a plurality of outlet areas by the third partition plate.
In one embodiment, the second wire outlet part is provided with a plurality of retaining walls which are arranged on two sides of the inclined guiding surface.
In addition to the transformer mentioned above, the invention also provides a transformer bobbin, comprising a winding part, a first wire outlet part connected to one side of the winding part and a second wire outlet part connected to the other side the winding part where is not provided with the first wire outlet part. The second wire outlet part is provided with an inclined guiding surface facing the winding part, a first partition plate arranged on the inclined guiding surface and a wire avoiding groove arranged on one side of the inclined guiding surface where is close to the winding part The first partition plate divides the inclined guiding surface into a first wire outlet area and a second wire outlet area. The wire avoiding groove is only arranged in the first wire outlet area. The first partition plate is formed with a wire supporting notch, and the second wire outlet part is provided with a plurality of retaining walls which are arranged on two sides of the inclined guiding surface.
In one embodiment, the second wire outlet part is provided with a second partition plate which is arranged in the first wire outlet area and positioned on the inclined guiding surface, and the inclined guiding surface within the first wire outlet area is divided into a plurality of winding areas by the second partition plate.
In one embodiment, the first wire outlet part and the second wire outlet part are respectively provided with a plurality of wire leading posts and a plurality of wire joining posts.
In one embodiment, the second wire outlet part is provided with a third partition plate which is arranged in the second wire outlet area and not positioned in the inclined guiding surface, and the second wire outlet area is divided into a plurality of outlet areas by the third partition plate.
In view of the implementation of the invention mentioned above, compared with the conventional technology, the invention comprises the following advantages: when a transformer is implemented to have a plurality of windings (namely the first sub-winding and the second sub-winding) at the same side, each sub-winding can be isolated without sleeving an isolation sleeve. Furthermore, the bobbin enables windings on the transformer to be wound automatically by a machine.
The details and technical content of the present invention are now described with reference to the drawings:
With reference to
With reference to
With reference again to
Further, a primary side of the transformer 100 of the present invention is composed of the first sub-winding 500 and the second sub-winding 600. Further, the first sub-winding 500 may be implemented as a plurality of windings as desired. With reference again to
In another aspect, the second sub-winding 600 is also formed by winding a sequence of metal wire. The second sub-winding 600 includes a second winding segment 61 which is wound on the winding part 21 and two second outlet segments 62, 63, and one of the two second outlet segments 62, 63 (which is corresponding to reference numeral 62) is connected to the second winding segment 61 and extended in the second wire outlet area 237, the other one of the two second outlet segments 62, 63 (which is corresponding to reference numeral 63) is connected to the second winding segment 61 and borne against the wire supporting notch 238 as well as extended in the second wire outlet area 237. Specifically, the winding of the second sub-winding 600 may be performed after the winding of the first sub-winding 500 is completed, and before the winding of the second sub-winding 600, an insulating tape is wound on a part that is corresponding to the first winding segment 51. At the beginning of winding the second sub-winding 600, the end of the wire enters from the second wire outlet area 237, and the wire is confined by the first partition plate 234, so as to avoid entering the first wire outlet area 236, the aforementioned wire segment is referred to as one of the two second outlet segment 62 herein. Next, the wire is wound around the winding part 21 according to the set number of turns to form the second winding segment 61 referred to herein, after which the wire extends to the second wire outlet area 237 through the wire supporting notch 238 to form the other one of the two second outlet segment 63 as aforementioned.
As can be seen from the above, the first sub-winding 500 does not extend to the second wire outlet area 237, so as to isolate from the second sub-winding 600 during winding. Furthermore, the two first outlet segments 52, 53 of the first sub-winding 500 pass through the wire avoiding groove 235, in order to avoid the second outlet segment 63 of the second sub-winding 600 whereby it is not necessary to additionally provide a protective sleeve on the first sub-winding 500 or the second sub-winding 600, the winding of the transformer 100 can be concretely mechanized, and further relived from the process of arranging the protective sleeve and the corresponding costs.
With reference to
With reference to
Number | Date | Country | Kind |
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107132307 | Sep 2018 | TW | national |