CN-224217330-U - Winding module, planar transformer and power supply equipment

CN224217330UCN 224217330 UCN224217330 UCN 224217330UCN-224217330-U

Abstract

The utility model relates to the field of planar transformers, in particular to a winding module, a planar transformer and power equipment, wherein the winding module comprises a wiring board and a secondary winding, the wiring board is provided with a mounting through hole, the opposite mounting through hole of the wiring board is provided with a primary side and a secondary side which are opposite along a first direction, and a first side and a second side which are opposite along a second direction, the first direction is perpendicular to the second direction, the secondary winding comprises a first winding, the first winding comprises a first half-turn winding and a second half-turn winding which are connected in parallel, opposite ends of the first half-turn winding and the second half-turn winding are respectively connected with the primary side and the secondary side, the first half-turn winding is at least partially arranged on the first side, and the second half-turn winding is at least partially arranged on the second side. In this embodiment, the half-turn winding in one winding is split into two half-turn windings, and different half-turn windings respectively connected to the primary side and the secondary side are arranged on opposite sides of the wiring board, so that magnetic flux balance is facilitated.

Inventors

LIAO SHENGFENG
REN WEN
XIE HONGJIAN
SHA XINGWEI
WU ZIYE

Assignees

广州视珩电子科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250208

Claims (10)

1. The winding module is characterized by comprising a wiring board and a secondary winding, wherein the wiring board is provided with a mounting through hole, the wiring board is provided with a primary side and a secondary side which are opposite along a first direction and a first side and a second side which are opposite along a second direction, the first direction is perpendicular to the second direction, the secondary winding comprises a first winding, the first winding comprises a first half-turn winding wire and a second half-turn winding wire which are connected in parallel, opposite ends of the first half-turn winding wire are respectively connected with the primary side and the secondary side, the first half-turn winding wire is at least partially arranged on the first side, opposite ends of the second half-turn winding wire are respectively connected with the primary side and the secondary side, and the second half-turn winding wire is at least partially arranged on the second side.
2. The winding module of claim 1, wherein the secondary winding further comprises a second winding in series with the first winding, the second winding comprises a third half-turn winding and a fourth half-turn winding in parallel, opposite ends of the third half-turn winding are respectively connected with the primary side and the secondary side, the third half-turn winding is at least partially disposed on the first side, opposite ends of the fourth half-turn winding are respectively connected with the primary side and the secondary side, and the fourth half-turn winding is at least partially disposed on the second side.
3. The winding module according to claim 2, wherein the wiring board includes at least one wiring layer, the first winding and the second winding are arranged on the same wiring layer, or The first winding and the second winding are arranged on different wiring layers.
4. A winding module according to claim 2 or 3, wherein the wiring board is provided with a first wiring module on the primary side, the wiring board is provided with a second wiring module on the secondary side, one end of the first half-turn winding, one end of the second half-turn winding, one end of the third half-turn winding and one end of the fourth half-turn winding are electrically connected with the first wiring module, and the other end of the first half-turn winding, the other end of the second half-turn winding, the other end of the third half-turn winding and the other end of the fourth half-turn winding are electrically connected with the second wiring module.
5. The winding module of claim 4, wherein the first wiring module comprises a first output terminal and a first tap terminal, the second wiring module comprises a second output terminal and a second tap terminal, the first output terminal is electrically connected to the second output terminal, the first tap terminal is electrically connected to the second tap terminal, one end of the first half turn wire is electrically connected to the first tap terminal, the other end of the first half turn wire is electrically connected to the second output terminal, one end of the second half turn wire is electrically connected to the first output terminal, and the other end of the second half turn wire is electrically connected to the second tap terminal.
6. The winding module of claim 5, wherein the first wiring module further comprises a third output terminal, the second wiring module further comprises a fourth output terminal, the third output terminal is electrically connected to the fourth output terminal, one end of the third half turn winding is electrically connected to the third output terminal, the other end of the third half turn winding is electrically connected to the second tap terminal, one end of the fourth half turn winding is electrically connected to the first tap terminal, and the other end of the fourth half turn winding is electrically connected to the fourth output terminal.
7. The winding module of claim 1, wherein the first half turn winding and the second half turn winding are symmetrical about a center of the mounting through hole.
8. A winding module according to claim 2 or 3, wherein the third and fourth half turns are symmetrical about the centre of the mounting through hole.
9. The planar transformer is characterized by comprising a magnetic core module and the winding module as claimed in any one of claims 1 to 8, wherein the magnetic core module comprises a first magnetic core side column, a second magnetic core side column and a magnetic core middle column, the first magnetic core side column and the second magnetic core side column are arranged at opposite intervals, the magnetic core middle column is arranged between the first magnetic core side column and the second magnetic core side column, the wiring board is sleeved in the magnetic core middle column through the mounting through hole and is positioned between the first magnetic core side column and the second magnetic core side column, the first side is arranged corresponding to the first magnetic core side column, and the second side is arranged corresponding to the second magnetic core side column.
10. A power supply device comprising the planar transformer of claim 9.

Description

Winding module, planar transformer and power supply equipment Technical Field The utility model relates to the field of planar transformers, in particular to a winding module, a planar transformer and power supply equipment. Background The planar transformer has the characteristics of high efficiency, energy saving, low radiation, low noise, high temperature resistance, moisture preservation, moisture prevention and the like. Compared with the traditional transformer, the planar transformer has lower power consumption and lower energy consumption, not only can effectively reduce the power consumption cost, but also can reduce the pollution to the environment, thereby achieving the purposes of energy conservation and environmental protection. Currently, in some output applications, the planar transformer generally includes a plurality of secondary windings, so as to meet the requirement of multi-path voltage output, the voltages output by different secondary windings are generally different, one output voltage is generally an integer multiple or fractional multiple of the other output voltage, for example, the first output voltage is 18V, the second output voltage is 12V, the first output voltage is 1.5 times of the second output voltage, and for the case of fractional multiple, when the number of winding turns is designed, the traditional method generally ensures that the winding corresponding to the lower output voltage is an integer turn, as described above, the winding corresponding to 18V is 3 turns, and the winding corresponding to 12V is 2 turns, however, due to the fact that the number of winding turns used is more, the copper consumption is increased, and therefore copper wire loss is increased. Although a method of winding a half turn on one side of the magnetic core is adopted to reduce the number of turns of the winding, because the magnetic core is symmetrical, winding a half turn of the winding on one side of the symmetrical magnetic core causes that one side of the symmetrical magnetic core has a large number of turns of the winding and the other side of the symmetrical magnetic core has a small number of turns of the winding, so that the magnetic core has a problem of unbalanced magnetic flux due to inconsistent winding numbers, which easily causes saturation of the magnetic core, and thus the planar transformer cannot work normally. Disclosure of utility model An object of the present utility model is to provide a winding module, a planar transformer and a power supply device, so as to solve the technical problems of large copper amount or unbalanced magnetic flux for the conventional planar transformer. In a first aspect, an embodiment of the present utility model provides a winding module, where the winding module includes a wiring board and a secondary winding, the wiring board is provided with a mounting through hole, the wiring board has a primary side and a secondary side opposite to each other along a first direction and has a first side and a second side opposite to each other along a second direction, the first direction is perpendicular to the second direction, the secondary winding includes a first winding, the first winding includes a first half-turn winding and a second half-turn winding connected in parallel, opposite ends of the first half-turn winding are respectively connected to the primary side and the secondary side, the first half-turn winding is at least partially disposed on the first side, opposite ends of the second half-turn winding are respectively connected to the primary side and the secondary side, and the second half-turn winding is at least partially disposed on the second side. Optionally, the secondary winding further includes a second winding connected in series with the first winding, the second winding includes a third half-turn winding and a fourth half-turn winding connected in parallel, opposite ends of the third half-turn winding are respectively connected with the primary side and the secondary side, the third half-turn winding is at least partially disposed on the first side, opposite ends of the fourth half-turn winding are respectively connected with the primary side and the secondary side, and the fourth half-turn winding is at least partially disposed on the second side. Optionally, the wiring board comprises at least one wiring layer, the first winding and the second winding are arranged on the same wiring layer, or The first winding and the second winding are arranged on different wiring layers. Optionally, the first wiring module is set up to the wiring board in the former side, the second wiring module has been set up to the wiring board in the secondary side, first half turn wire winding one end second half turn wire winding one end third half turn wire winding one end and fourth half turn wire winding one end with first wiring module electricity is connected, first half turn wire winding other end second half turn wire winding other end th