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WO-2026092549-A1 - VOLTAGE TRANSFORMATION CONTROL DEVICE, MOTOR CONTROLLER, AND VEHICLE

WO2026092549A1WO 2026092549 A1WO2026092549 A1WO 2026092549A1WO-2026092549-A1

Abstract

The present disclosure relates to a voltage transformation control device, a motor controller, and a vehicle. The voltage transformation control device comprises: a transformer, wherein the transformer comprises a first circuit board; a main board, wherein the main board comprises a second circuit board; a first reinforcement connection layer located on the side of the first circuit board facing the second circuit board, wherein the first reinforcement connection layer comprises a first reinforcement pad; and a second reinforcement connection layer located on the side of the second circuit board facing the first circuit board, wherein the second reinforcement connection layer comprises a second reinforcement pad, the first reinforcement pad is fixed to the second reinforcement pad by welding, and the first reinforcement pad is not electrically connected to the second reinforcement pad. By means of the technical solution of the present disclosure, the use reliability of the transformer is improved, the risk of the transformer falling off from the main board is reduced, no additional area is required for the transformer, and the cost of the voltage transformation control device is reduced.

Inventors

  • XU, JIN

Assignees

  • 上海理想汽车科技有限公司

Dates

Publication Date
20260507
Application Date
20251029
Priority Date
20241030

Claims (12)

  1. A transformer control device, characterized in that it comprises: Transformer; the transformer includes a first circuit board; Motherboard; the motherboard includes a second circuit board; A first reinforcing connection layer; the first reinforcing connection layer is located on the side of the first circuit board facing the second circuit board; the first reinforcing connection layer includes a first reinforcing pad; A second reinforcing connection layer; the second reinforcing connection layer is located on the side of the second circuit board facing the first circuit board; the second reinforcing connection layer includes a second reinforcing pad; The first reinforcing pad is welded and fixed to the second reinforcing pad, so that the first circuit board and the second circuit board do not form an electrical connection.
  2. The transformer control device according to claim 1 is characterized in that the first reinforcing pad includes a plurality of spaced-apart first reinforcing sub-pads, the second reinforcing pad includes a plurality of spaced-apart second reinforcing sub-pads, and the first reinforcing sub-pads and the second reinforcing sub-pads are welded and fixed in a one-to-one correspondence.
  3. The transformer control device according to claim 2 is characterized in that the plurality of first reinforcing sub-pads and the plurality of second reinforcing sub-pads are arranged in a grid array.
  4. According to claim 2 or 3, the transformer control device is characterized in that the area of the second reinforcing sub-pad is greater than or equal to the area of the first reinforcing sub-pad.
  5. According to any one of claims 2-4, the transformer control device is characterized in that the first circuit board further includes a wiring layer; the first reinforcing connection layer further includes a plurality of first functional pads; the first functional pads are electrically connected to the wiring layer through vias; the second reinforcing connection layer further includes a plurality of second functional pads; the first functional pads and the second functional pads are electrically connected.
  6. The transformer control device according to claim 5 is characterized in that the first functional pad and the first reinforcing pad are spaced apart, and the second functional pad and the second reinforcing pad are spaced apart.
  7. According to claim 5 or 6, the transformer control device is characterized in that the spacing between adjacent first reinforcing sub-pads is less than or equal to the spacing between adjacent first reinforcing sub-pads and the first functional pad. And/or, the spacing between adjacent second reinforced sub-pads is less than or equal to the spacing between adjacent second reinforced sub-pads and the second functional pad.
  8. The transformer control device according to any one of claims 5-7, characterized in that the area of the first reinforcing pad is greater than or equal to the area of the first functional pad; and/or, the area of the second reinforcing pad is greater than or equal to the area of the second functional pad.
  9. The transformer control device according to any one of claims 1-8 is characterized in that the first reinforcing connection layer does not form an electrical connection with the first circuit board; and/or the second reinforcing connection layer does not form an electrical connection with the second circuit board.
  10. A motor controller, characterized in that it includes a transformer control device as described in any one of claims 1-9.
  11. An electric drive assembly, characterized in that it includes a transformer control device as described in any one of claims 1-9, or a motor controller as described in any one of claims 10.
  12. A vehicle, characterized in that it includes a transformer control device as described in any one of claims 1-9, or a motor controller as described in claim 10, or an electric drive assembly as described in claim 11.

Description

Transformer control unit, motor controller and vehicle Cross-reference of related applications This disclosure is based on and claims priority to Chinese Patent Application No. 202411535352.7, filed on October 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field This disclosure relates to the field of vehicle technology, and more particularly to a transformer control device, a motor controller, and a vehicle. Background Technology With the development of modern technology, new energy vehicles are becoming increasingly popular, and their controllers are integrating more and more functions while requiring smaller sizes. Hybrid electric vehicles typically include two motors: one as the main drive motor and the other as a generator. Both require a motor controller for control, and the motor controller is placed close to the generator and drive motor. In related technologies, in dual-electric control systems, such as the generator and drive motor in range-extended vehicles, the distance between them is too close. If the transformer in the motor controller is still fixed to the main board using the original pins for electrical connection, it cannot meet the new vibration requirements. During use, excessive vibration can easily cause the transformer to detach from the main board, leading to transformer failure. Furthermore, simply increasing the number of pins for electrical connection not only requires increasing the transformer area but also does not significantly improve vibration resistance. Summary of the Invention To solve the above-mentioned technical problems, or at least partially solve them, this disclosure provides a transformer control device, a motor controller, and a vehicle, which improves the reliability of transformer use, reduces the risk of transformer detaching from the main board, eliminates the need to increase the transformer area, and reduces the cost of the transformer control device. In a first aspect, this disclosure provides a transformer control device, comprising: a transformer; the transformer including a first circuit board; Motherboard; the motherboard includes a second circuit board; A first reinforcing connection layer is located on the side of the first circuit board facing the second circuit board; the first reinforcing connection layer includes a first reinforcing pad; The second reinforcing connection layer is located on the side of the second circuit board facing the first circuit board; the second reinforcing connection layer includes a second reinforcing pad; The first reinforcing pad is welded and fixed to the second reinforcing pad, so that the first circuit board and the second circuit board do not form an electrical connection. In some embodiments, the first reinforcing connection layer does not form an electrical connection with the first circuit board; and/or the second reinforcing connection layer does not form an electrical connection with the second circuit board. In some embodiments, the first reinforcing pad includes a plurality of spaced-apart first reinforcing sub-pads, and the second reinforcing pad includes a plurality of spaced-apart second reinforcing sub-pads, wherein the first reinforcing sub-pads and the second reinforcing sub-pads are welded and fixed in a one-to-one correspondence. In some embodiments, the plurality of first reinforced sub-pads and the plurality of second reinforced sub-pads are arranged in a grid array. In some embodiments, the area of the second reinforcing sub-pad is greater than or equal to the area of the first reinforcing sub-pad. In some embodiments, the first circuit board further includes a wiring layer; the first reinforcing connection layer further includes a plurality of first functional pads; the first functional pads are electrically connected to the wiring layer via vias; the second reinforcing connection layer further includes a plurality of second functional pads; the first functional pads and the second functional pads are electrically connected. In some embodiments, the first functional pad and the first hardening pad are spaced apart, and the second functional pad and the second hardening pad are spaced apart. In some embodiments, the spacing between adjacent first reinforced sub-pads is less than or equal to the spacing between adjacent first reinforced sub-pads and the first functional pad; And/or, the spacing between adjacent second reinforced sub-pads is less than or equal to the spacing between adjacent second reinforced sub-pads and the second functional pad. In some embodiments, the area of the first reinforcing pad is greater than or equal to the area of the first functional pad; and/or, the area of the second reinforcing pad is greater than or equal to the area of the second functional pad. In a second aspect, this disclosure also provides a motor controller, including the transformer control device as described in the first aspect. Thirdly, this disclosure also prov