Circuit board preparation process, circuit board and motor

Abstract

The invention discloses a circuit board preparation technology, a circuit board and a motor, and the technology comprises the steps: mixing soft magnetic material powder in a basic material of the circuit board when the circuit board is prepared, and then preparing the circuit board. Soft magnetic material powder is distributed in the board of the circuit board, the circuit board is prepared by the preparation process, the stator of the motor is the circuit board, and a winding coil is arranged on the circuit board. According to the circuit board preparation process, the circuit board and the motor, the soft magnetic material powder is mixed into the basic material of the circuit board, and the prepared circuit board has certain magnetic conductivity, so that the loss of a magnetic field generated when a wire is electrified is greatly reduced; and the motor can obtain higher power output under the condition that the size of the lead and the number of layers of the circuit board in the stator are not changed.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit boards, and in particular to a circuit board preparation process, a circuit board and a motor. Background Art

[0002] The disc motor with printed circuit board as stator is gradually replacing the motor with traditional stator because of its compact structure, small size and high speed.

[0003] Nowadays, in order to obtain greater power to meet the use scenarios with greater demands, there are several commonly used technical means. One is to increase the number of turns of the winding unit on the circuit board, the second is to thicken the wire of the winding unit on the circuit board, and the third is to increase the number of layers of the circuit board. The core idea of ​​these methods is to enhance the magnetic field generated when the wire is electrified to obtain a greater driving force for the rotor, but the disadvantage of these methods is that they often require the design of a larger circuit board or a thicker stator to achieve;

[0004] During our research, we found that because the substrate material of the circuit board itself is not magnetically conductive, the magnetic field generated when the wire is energized suffers significant losses. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides a circuit board preparation process, a circuit board and a motor. In the circuit board preparation process, the circuit board and the motor, soft magnetic material powder is mixed into the base material of the circuit board. The prepared circuit board has a certain magnetic conductivity, thereby greatly reducing the loss of the magnetic field generated when the wire is energized. When the size of the wire in the stator and the number of circuit board layers remain unchanged, the motor can obtain a higher power output.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] On the one hand, the present invention provides a circuit board preparation process, comprising the following steps: when preparing the circuit board, soft magnetic material powder is mixed into the base material of the circuit board, and then the circuit board is prepared.

[0008] In a further technical solution, the base material includes resin or ceramic powder.

[0009] Resin or ceramic powder is currently a common substrate for preparing circuit boards. The preparation process of the present invention can be applied to a variety of existing preparation substrates and has a wide range of applicability.

[0010] In a further technical solution, the soft magnetic material powder is silicon steel powder, industrial pure iron powder or amorphous soft magnetic alloy powder.

[0011] A variety of soft magnetic material powders can meet the process requirements of the present invention. Different materials have different costs and effects. Users can customize them according to their needs, further improving applicability.

[0012] In a further technical solution, the soft magnetic material powder is subjected to insulation processing before mixing.

[0013] Insulation processing can improve the insulation performance of circuit boards and avoid product damage caused by leakage.

[0014] In a further technical solution, before mixing, the soft magnetic material powder particles are coated with insulating material.

[0015] The insulating material is coated on the outside of the powder particles to ensure the insulating performance of the soft magnetic material powder, and the mixing ratio between the soft magnetic material powder and the basic material of the circuit board can be adjusted to a greater extent, thereby avoiding the problem of leakage.

[0016] On the other hand, the present invention further provides a circuit board, wherein soft magnetic material powder is distributed inside the plate of the circuit board, and the circuit board is prepared by the preparation process of any of the above technical solutions.

[0017] On the other hand, the present invention further provides a motor, wherein the stator of the motor is the circuit board of the above technical solution, and winding coils are arranged on the circuit board.

[0018] The circuit board preparation process of the present invention mixes soft magnetic material powder into the basic material of the circuit board, so that the prepared circuit board itself has a certain magnetic conductivity effect, thereby greatly reducing the magnetic field loss generated when the wires on the circuit board are energized. A stronger magnetic field can output higher power when driving the rotor. Compared with other methods, the volume of the circuit board prepared by the present invention remains unchanged, and the volume of the motor remains unchanged, so higher power can be obtained and the application scenarios are wider.

[0019] The beneficial effects are:

[0020] 1. The circuit board preparation process of the present invention mixes soft magnetic material powder into the basic material of the circuit board, so that the prepared circuit board itself has a certain magnetic conductivity effect, thereby greatly reducing the magnetic field loss generated when the wires on the circuit board are energized. A stronger magnetic field can output higher power when driving the rotor. Compared with other methods, the volume of the circuit board prepared by the present invention remains unchanged, and the volume of the motor remains unchanged, so higher power can be obtained and the application scenarios are wider.

[0021] 2. Resin or ceramic powder is currently a common substrate for preparing circuit boards. The preparation process of the present invention can be applied to a variety of existing preparation substrates and has a wide range of applicability.

[0022] 3. A variety of soft magnetic material powders can meet the process requirements of the present invention. The costs and effects of different materials are different. Users can customize them according to their needs, which further improves the applicability.

[0023] 4. Insulation processing can improve the insulation performance of the circuit board and avoid product damage caused by leakage.

[0024] 5. The insulating material is coated on the outside of the powder particles to ensure the insulation performance of the soft magnetic material powder, so that the mixing ratio between the soft magnetic material powder and the basic material of the circuit board can be adjusted to a greater extent, thereby avoiding the problem of leakage. DETAILED DESCRIPTION

[0025] The present invention will be further described below:

[0026] Example:

[0027] A circuit board preparation process comprises the following steps: when preparing the circuit board, soft magnetic material powder is mixed into the basic material of the circuit board to prepare the circuit board.

[0028] In another embodiment, the base material includes resin or ceramic powder.

[0029] Resin or ceramic powder is currently a common substrate for preparing circuit boards. The preparation process of the present invention can be applied to a variety of existing preparation substrates and has a wide range of applicability.

[0030] In another embodiment, the soft magnetic material powder is silicon steel powder, industrial pure iron powder or amorphous soft magnetic alloy powder.

[0031] A variety of soft magnetic material powders can meet the process requirements of the present invention. Different materials have different costs and effects. Users can customize them according to their needs, further improving applicability.

[0032] In this embodiment, silicon steel powder is mixed with phenolic resin, and the mixture is then compounded with glass fiber to form a circuit board.

[0033] In another embodiment, the soft magnetic material powder is subjected to insulation processing before mixing.

[0034] Insulation processing can improve the insulation performance of circuit boards and avoid product damage caused by leakage.

[0035] Specifically, since the soft magnetic material powder is mixed with the base material to make a circuit board, after the wires are laid on the circuit board, the local soft magnetic material may be connected to the wires on the circuit board, causing leakage. This situation becomes more prominent when the mixing ratio of the soft magnetic material powder increases.

[0036] In another embodiment, before mixing, the soft magnetic material powder particles are coated with insulating material.

[0037] The insulating material is coated on the outside of the powder particles to ensure the insulating performance of the soft magnetic material powder, and the mixing ratio between the soft magnetic material powder and the basic material of the circuit board can be adjusted to a greater extent, thereby avoiding the problem of leakage.

[0038] In another embodiment, a circuit board is disclosed, wherein soft magnetic material powder is distributed inside the plate of the circuit board, and the circuit board is prepared by the preparation process of any of the above embodiments.

[0039] In another embodiment, a motor is disclosed, wherein the stator of the motor is the circuit board of the previous embodiment, and winding coils are arranged on the circuit board.

[0040] The circuit board preparation process of the present invention mixes soft magnetic material powder into the basic material of the circuit board, so that the prepared circuit board itself has a certain magnetic conductivity effect, thereby greatly reducing the magnetic field loss generated when the wires on the circuit board are energized. A stronger magnetic field can output higher power when driving the rotor. Compared with other methods, the volume of the circuit board prepared by the present invention remains unchanged, and the volume of the motor remains unchanged, so higher power can be obtained and the application scenarios are wider.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A circuit board preparation process, characterized in that: The following steps are involved: When preparing the circuit board, soft magnetic material powder is mixed into the base material of the circuit board to prepare the circuit board.

2. The circuit board preparation process according to claim 1, characterized in that: The base material includes resin or ceramic powder.

3. The circuit board preparation process according to claim 1, characterized in that: The soft magnetic material powder is silicon steel powder, industrial pure iron powder or amorphous soft magnetic alloy powder.

4. The circuit board preparation process according to claim 1, characterized in that: Before mixing, the soft magnetic material powder is subjected to insulation processing.

5. The circuit board preparation process according to claim 4, characterized in that: Before mixing, the soft magnetic material powder particles are coated with insulating material.

6. A circuit board, characterized in that: Soft magnetic material powder is distributed inside the plate of the circuit board, and the circuit board is prepared by the preparation process of any one of claims 1-5.

7. A motor, characterized in that: The stator of the motor is the circuit board in claim 6, and winding coils are arranged on the circuit board.