Network transformer

Abstract

A network transformer includes a housing consisting of a top cover and a base. A self-standing positioning post is located at the center of the base, and side walls are provided on both sides of the positioning post to form accommodating spaces. A plurality of self-adhesive coils and insulating components are alternately sleeved on the positioning post, achieving precise axial positioning through a first central hole and a second central hole. A pin seat surrounds the outer periphery of the base and has a plurality of connecting pins for electrical connection between the self-adhesive coils and the flat coils. This invention addresses the problems of cumbersome assembly and unstable coil positioning in existing network transformers by utilizing a special structural design that combines the central positioning post with the outer pin seat. This not only improves structural strength but also significantly simplifies the automated production process.

Claims

1. A network transformer, comprising: A housing comprising a top cover and a base, wherein the top surface of the base is provided with at least one side wall; A plurality of self-adhesive coils are aligned with the sidewall to form a positioning stack; a plurality of insulating members are used to separate each self-adhesive coil; and a pin holder is provided around the outer periphery of the base, and a plurality of connecting pins are provided at intervals on the two symmetrical sides of the pin holder to electrically connect the self-adhesive coils to the connecting pins.

2. The network transformer as described in claim 1 further comprises at least one flat coil, the center of which has a third center hole corresponding to a positioning post at the center of the base, for fitting onto the positioning post and being electrically connected to several connecting pins thereon.

3. The network transformer as described in claim 2, wherein, The insulating element is selected from, for example, an insulating partition or an insulating withstand wire, and the flat coil is separated from the self-adhesive coil by the insulating element above and below.

4. The network transformer as described in claim 3, wherein, The flat coil has two electrical connection ports for attaching to the connection pin.

5. The network transformer as described in claim 4, wherein, The base has a positioning post at its center and at least one side wall disposed on both sides of the positioning post. The top cover is closed and fitted onto the base. Each self-adhesive coil has a first center hole corresponding to the positioning post for fitting onto the positioning post. Each insulating member has a second center hole corresponding to the positioning post for fitting onto the positioning post.

6. The network transformer as described in claim 5, wherein, The needle holder has a hollowed-out section in the center corresponding to the base, so that the base can be placed inside it.

7. The network transformer as described in claim 6, wherein, The hollow section is provided with at least one positioning block, and the bottom surface of the base is provided with a positioning notch corresponding to the positioning block, so that the base can be correctly positioned and installed in the needle holder.

8. The network transformer as described in claim 1, 5, 6, or 7, wherein, Each self-adhesive coil has an electrical connection end at each of its two ends for soldering to the connection pins.

9. The network transformer as described in claim 1, 5, 6 or 7 further comprises a plurality of wound shielded coils disposed on one side of the self-adhesive coils to reduce EMI.

10. The network transformer as described in claim 9, wherein, The wound-shielded coil has a fourth center hole at its center and an electrical connection port.

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