Double-layer spliced control panel of motor

Abstract

The utility model relates to a motor double-layer splicing type control panel, comprising a low-voltage main control panel, a low-voltage main control panel integrated with a main control circuit, the main control circuit comprising a control chip; a driving circuit formed by a plurality of MOS (Metal Oxide Semiconductor) tubes is integrated on the high-voltage high-current board, the low-voltage main control board and the high-voltage high-current board are arranged at intervals up and down, and a plurality of capacitors are arranged at the edge of one surface, facing the low-voltage main control board, of the high-voltage high-current board. The low-voltage main control board is provided with an avoiding notch matched with the capacitor; one end of each conductive connection female head is connected with the high-voltage high-current board, and the other end of each conductive connection female head extends out of the low-voltage main control board; one end of each conductive connecting pin is connected with the low-voltage main control board, and the other end of each conductive connecting pin is connected with the high-voltage high-current board.

Description

A double-layer splicing control board for motors Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a double-layer splicing control board for motors. Background Technology

[0002] With technological advancements and increases in motor power and drive current, more and more functions are being integrated into a compact module. The motor control board, built into the motor itself, achieves a higher degree of integration. Currently, the industry has increasingly stringent requirements for motor size and space utilization, leading to greater overall equipment compactness. This results in smaller motor dimensions, necessitating corresponding design adjustments for the motor control board. Under high-current operating conditions, traditional PCB designs frequently face issues such as current overload, heat loss, signal interference, and stability problems. These issues can lead to decreased system reliability and even malfunctions. Summary of the Invention

[0003] In view of the above situation, it is necessary to propose a dual-layer splicing control board for motors that is convenient for PCB board integration and high-current use.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a double-layer spliced ​​control board for motors, comprising:

[0005] A low-voltage main control board, wherein the low-voltage main control board integrates a main control circuit, and the main control circuit includes a control chip;

[0006] A high-voltage, high-current board is provided, which integrates a driving circuit composed of several MOS transistors. The low-voltage main control board and the high-voltage, high-current board are arranged vertically and vertically. The edge of the side of the high-voltage, high-current board facing the low-voltage main control board is provided with several capacitors. The low-voltage main control board is provided with a clearance slot adapted to the capacitors.

[0007] Several conductive female connectors, one end of which is connected to the high voltage and high current board, and the other end extends from the low voltage main control board;

[0008] Several conductive connection pins, one end of which is connected to the low-voltage main control board and the other end of which is connected to the high-voltage high-current board.

[0009] Furthermore, one of the conductive female connectors is located in the recessed slot.

[0010] Furthermore, the low-voltage main control board is provided with a clearance hole or clearance groove for the conductive female connector to extend out.

[0011] Furthermore, the driving circuit consists of three sets of H-bridges connected in parallel, and each set of H-bridges includes four MOS transistors.

[0012] Furthermore, in each H-bridge group, two of the four MOS transistors are located in the upper bridge arm, and the other two are located in the lower bridge arm.

[0013] Furthermore, both the low-voltage main control board and the high-voltage high-current board are provided with a clearance center hole through which the central shaft of the power supply passes.

[0014] Furthermore, the conductive female connector is welded to the high-voltage, high-current plate.

[0015] Furthermore, both the low-voltage main control board and the high-voltage high-current board are provided with welding holes, and the conductive connecting pins are welded through the welding holes.

[0016] Furthermore, the MOS transistor is disposed on the side of the high-voltage, high-current board facing away from the low-voltage main control board.

[0017] Furthermore, the low-voltage main control board is positioned close to the motor windings, while the high-voltage, high-current board is positioned away from the motor windings.

[0018] The beneficial effects of this utility model are as follows: it divides the original PCB board into two PCB boards, namely a low-voltage main control board and a high-voltage high-current board, which are electrically connected by conductive connector pins. The high-voltage high-current board is connected to the outside through a conductive connector female.

[0019] This is used for electrical isolation. The drive section typically involves higher voltages and currents, while the main control section generally operates at lower voltages (e.g., the control chip). Separate design can effectively achieve electrical isolation, reduce high voltage interference to the main control section, and improve the reliability and safety of the system.

[0020] Motor drive circuits often generate significant electromagnetic interference (EMI), which can affect the signal stability and accuracy of the main control unit. Separating the drive circuit from the main control circuit can reduce the impact of interference on the main control unit and improve the overall system performance.

[0021] A more rational layout and space design avoids capacitors by using slots and avoidance slots. This makes it easier to install capacitors and allows the low-voltage main control board to achieve higher installation stability by being compatible with the capacitors. Attached Figure Description

[0022] Figure 1 is a structural schematic diagram of a double-layer spliced ​​control board for motors according to an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of another aspect of the structure of a double-layer spliced ​​control board for motor according to an embodiment of the present invention.

[0024] Figure 3 is a structural schematic diagram of a high voltage and high current board of a double-layer spliced ​​motor control board according to an embodiment of the present invention.

[0025] Figure 4 is a structural schematic diagram of the low-voltage main control board of a double-layer spliced ​​motor control board according to an embodiment of the present invention.

[0026] Label Explanation:

[0027] 100. Low-voltage main control board; 110. Control chip; 120. Clearance slot; 130. Clearance hole;

[0028] 140, clearance groove; 150, clearance center hole; 160, welding hole; 170, first external wiring hole;

[0029] 200, High voltage and high current board; 210, MOSFET; 220, Capacitor; 230, Second external wiring hole;

[0030] 300, conductive female connector; 400, conductive pin connector. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a double-layer spliced ​​control board for motors, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0032] Please refer to Figures 1-4. A double-layer spliced ​​control board for motors includes:

[0033] Low-voltage main control board 100, the low-voltage main control board 100 integrates a main control circuit, the main control circuit includes a control chip 110;

[0034] The high voltage and high current board 200 integrates a driving circuit composed of several MOS transistors 210. The low voltage main control board 100 and the high voltage and high current board 200 are arranged vertically and vertically. Several capacitors 220 are provided on the edge of the side of the high voltage and high current board 200 facing the low voltage main control board 100. The low voltage main control board 100 is provided with a clearance notch 120 adapted to the capacitors 220.

[0035] Several conductive female connectors 300 are provided, one end of which is connected to the high voltage and high current board 200, and the other end extends from the low voltage main control board 100.

[0036] Several conductive connecting pins 400 are connected at one end to the low-voltage main control board 100 and at the other end to the high-voltage high-current board 200.

[0037] The original PCB board is divided into two PCB boards, namely the low-voltage main control board 100 and the high-voltage high-current board 200. The two are electrically connected through conductive connector pins 400, and the high-voltage high-current board 200 is connected to the outside through conductive connector females 300.

[0038] This is used for electrical isolation. The drive section typically involves higher voltages and currents, while the main control section generally operates at lower voltages (e.g., control chip 110). Separate design can effectively achieve electrical isolation, reduce high voltage interference to the main control section, and improve system reliability and safety.

[0039] Motor drive circuits often generate significant electromagnetic interference (EMI), which can affect the signal stability and accuracy of the main control unit. Separating the drive circuit from the main control circuit can reduce the impact of interference on the main control unit and improve the overall system performance.

[0040] A more reasonable layout and space design avoids capacitor 220 by using slot 120 to avoid it. This makes it easier to set up capacitor 220 and also allows the low-voltage main control board 100 to achieve higher installation stability by being compatible with capacitor 220.

[0041] Please refer to Figure 1, where one of the conductive female connectors 300 is located in the clearance notch 120.

[0042] Referring to Figures 1-4, the low-voltage main control board 100 is provided with a clearance hole 130 or clearance groove 140 for the conductive connector 300 to extend out. Preferably, multiple conductive connectors 300 are provided and an asymmetrical, non-array design is adopted, i.e., a foolproof design is implemented to avoid connection errors.

[0043] Preferably, the drive circuit consists of three sets of H-bridges connected in parallel, with each set of H-bridges including four MOSFETs 210. The twelve MOSFETs 210, with their low on-resistance and high continuous drain current, allow the motor control board to withstand greater current, solving the problem of insufficient current carrying capacity. The low on-resistance reduces power loss and heat generation when the current is too high. Furthermore, twelve MOSFETs 210 can handle a larger current than six MOSFETs 210, thus improving high-current operating efficiency and system stability.

[0044] Preferably, two of the four MOS transistors 210 in each H-bridge are located in the upper bridge arm and the other two are located in the lower bridge arm.

[0045] Referring to Figures 1-4, both the low-voltage main control board 100 and the high-voltage high-current board 200 are provided with a clearance center hole 150 through which the central shaft of the power supply passes. This makes the motor structure more compact and eliminates the need to increase the height of the motor.

[0046] Preferably, the conductive female connector 300 is welded to the high-voltage, high-current board 200. The welded connection is stable and reliable.

[0047] Referring to Figure 4, both the low-voltage main control board 100 and the high-voltage high-current board 200 are provided with welding holes 160, through which conductive connecting pins 400 are welded. The welded connection is stable and can support the low-voltage main control board 100 and the high-voltage high-current board 200.

[0048] Referring to Figure 2, the MOSFET 210 is located on the side of the high-voltage, high-current board 200 facing away from the low-voltage main control board 100. This further improves the electrical isolation distance and facilitates heat dissipation.

[0049] Preferably, the low-voltage main control board 100 is positioned close to the motor windings, while the high-voltage, high-current board 200 is positioned away from the motor windings.

[0050] Please refer to Figures 1-4. The recessed slot 120 is provided with a semi-circular arc portion that is compatible with the capacitor 220.

[0051] Referring to Figure 1, the first external wiring hole 170 of the low-voltage main control board 100 and the second external wiring hole 230 of the high-voltage high-current board 200 are both located on the side of the clearance slot 120. Generally, the inner diameter of the second external wiring hole 230 is larger than that of the first external wiring hole 170 to facilitate the connection of external wiring that can handle larger voltage and current.

[0052] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0054] In summary, the dual-layer splicing control board 1 for motors provided by this utility model divides the original PCB board into two PCB boards, namely a low-voltage main control board and a high-voltage high-current board, which are electrically connected by conductive connector pins. The high-voltage high-current board is connected to the outside through conductive connector females.

[0055] This is used for electrical isolation. The drive section typically involves higher voltages and currents, while the main control section generally operates at lower voltages (e.g., the control chip). Separate design can effectively achieve electrical isolation, reduce high voltage interference to the main control section, and improve the reliability and safety of the system.

[0056] Motor drive circuits often generate significant electromagnetic interference (EMI), which can affect the signal stability and accuracy of the main control unit. Separating the drive circuit from the main control circuit can reduce the impact of interference on the main control unit and improve the overall system performance.

[0057] The drive section uses 12 MOSFETs to transmit large currents during motor drive, enhancing the current carrying capacity of the PCB board and ensuring the reliability and safety of the system.

[0058] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A double-layer spliced ​​control board for motors, characterized in that, include: A low-voltage main control board, which integrates a main control circuit including a control chip; a high-voltage high-current board, which integrates a drive circuit composed of several MOSFETs; the low-voltage main control board and the high-voltage high-current board are arranged vertically at intervals; the edge of the side of the high-voltage high-current board facing the low-voltage main control board is provided with several capacitors; the low-voltage main control board is provided with clearance slots adapted to the capacitors; and several conductive female connectors, one end of which is connected to the high-voltage high-current board and the other end extends from the low-voltage main control board. Several conductive connection pins, one end of which is connected to the low-voltage main control board and the other end of which is connected to the high-voltage high-current board.

2. The double-layer spliced ​​control board for motors according to claim 1, characterized in that, One of the conductive female connectors is located in the recessed slot.

3. The double-layer spliced ​​control board for motors according to claim 1, characterized in that, The low-voltage main control board is provided with a clearance hole or clearance groove for the conductive female connector to extend out.

4. The double-layer spliced ​​control board for motors according to claim 1, characterized in that, The driving circuit consists of three sets of H-bridges connected in parallel, and each set of H-bridges includes four MOS transistors.

5. A double-layer spliced ​​control board for motors according to claim 4, characterized in that, Two of the four MOS transistors in each H-bridge are located in the upper bridge arm, and the other two are located in the lower bridge arm.

6. The double-layer spliced ​​control board for motors according to claim 1, characterized in that, Both the low-voltage main control board and the high-voltage high-current board are provided with a center hole through which the central shaft of the power supply passes.

7. The double-layer spliced ​​control board for motors according to claim 1, characterized in that, The conductive female connector is welded to the high voltage and high current plate.

8. The double-layer spliced ​​control board for motors according to claim 1, characterized in that, Both the low-voltage main control board and the high-voltage high-current board are provided with welding holes, and the conductive connecting pins are welded through the welding holes.

9. A double-layer spliced ​​control board for motors according to claim 1, characterized in that, The MOSFET is located on the side of the high-voltage, high-current board that faces away from the low-voltage main control board.

10. A double-layer spliced ​​control board for a motor according to claim 1, characterized in that, The low-voltage main control board is positioned close to the motor windings, while the high-voltage, high-current board is positioned away from the motor windings.

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