Single-phase and three-phase universal cleaning machine direct current brushless motor and control system

Abstract

The invention relates to the technical field of motor control systems, in particular to a cleaning machine direct-current brushless motor suitable for single-phase and three-phase universality and a control system, and a control unit of the cleaning machine direct-current brushless motor comprises a wide-range auxiliary power panel which is provided with a first control interface and a power supply output interface; the CPU main control board is provided with a first communication interface and a second communication interface, and the first communication interface is electrically connected with the first control interface; the single-phase / three-phase rectification module is provided with an alternating current input interface and a direct current output interface, and the alternating current input interface is electrically connected with the power supply output interface; and the IGBT power driving board is provided with a direct current input interface, a second control interface and a motor output interface, the direct current input interface is electrically connected with the direct current output interface, and the second control interface is electrically connected with the second communication interface. According to the invention, three-phase 380V alternating current and single-phase 220V alternating current are covered, so that various different power grids can be accessed, and the operation requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of motor control systems, and in particular to a brushless DC motor and a control system suitable for single-phase and three-phase washing machines. Background Art

[0002] The motors and control systems used in traditional cleaning machines are either AC 380V or AC 220V, and only allow a certain voltage fluctuation range at most. They are not compatible with AC 100V~440V and single / three-phase universal functions.

[0003] In many application scenarios, especially in outdoor project power supply systems, the transmission lines built by users themselves are long, the line voltage fluctuates greatly, three-phase power supply phase loss occurs from time to time, and the single-phase power supply voltage drop is large, which makes the cleaning machine unable to work normally or even burn out. The present invention can solve all the drawbacks on site, has no requirements for the transmission line, and can connect to single-phase, three-phase power supply, and three-phase phase loss, and the equipment can operate normally. Summary of the invention

[0004] The present invention provides a brushless DC motor and control system for a washing machine that is applicable to single-phase and three-phase general use. Its wide range auxiliary power supply board covers three-phase 380V and single-phase 220V AC, so it can be connected to a variety of different power grids and meet the operation requirements. The IGBT power driver board integrates a single direct-insertion high-voltage rectifier diode and a direct-insertion I BGT single tube into a patch process, and the power heating device is integrated into a module, with smaller thermal resistance and faster heat dissipation.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: a DC brushless motor and control system suitable for single-phase and three-phase cleaning machines, which includes: a DC brushless motor body, and a control unit arranged on the DC brushless motor body, and the control unit is provided with a power supply input terminal.

[0006] Preferably, the control unit includes: a wide-range auxiliary power supply board, the wide-range auxiliary power supply board is provided with a first control interface and a power supply output interface, and the power supply input end is arranged on the wide-range auxiliary power supply board; a CPU main control board, the CPU main board is provided with a first communication interface and a second communication interface, and the first communication interface is electrically connected to the first control interface; a single-phase / three-phase rectifier module, the single-phase / three-phase rectifier module is provided with an AC input interface and a DC output interface, and the AC input interface is electrically connected to the power supply output interface; an IGBT power drive board, the IGBT power drive board is provided with a DC input interface, a second control interface and a motor output interface, the DC input interface is electrically connected to the DC output interface, the second control interface is electrically connected to the second communication interface, and the motor output interface is electrically connected to the DC brushless motor body.

[0007] Preferably, the control unit also includes a display and a control component, and the display and the control component are electrically connected to the CPU main control board respectively.

[0008] Preferably, the IGBT power driving board is a monomer structure.

[0009] The beneficial effects of the present invention are as follows: the wide range auxiliary power board covers three-phase 380V and single-phase 220V AC, so it can be connected to a variety of different power grids and meet the operation requirements. The IGBT power driver board integrates a single direct-inserted high-voltage rectifier diode and a direct-inserted I BGT single tube into a patch process, and the power heating device is integrated into a module, which has lower thermal resistance and faster heat dissipation. The display is used to display the current operating voltage, and the control component includes a start and stop button of the DC brushless motor body, and an operation signal interface, thereby meeting the working requirements of the DC brushless motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the principle of the present invention.

[0012] In the figure: 1. DC brushless motor body; 3. power supply input terminal; 4. wide range auxiliary power supply board; 5. first control interface; 6. power supply output interface; 7. CPU main control board; 8. first communication interface; 9. second communication interface; 10. single-phase / three-phase rectifier module; 11. AC input interface; 12. DC output interface; 13. IGBT power driver board; 14. DC input interface; 15. second control interface; 16. motor output interface; 17. display; 18. control component. DETAILED DESCRIPTION

[0013] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] according to Figure 1As shown, a DC brushless motor and control system suitable for single-phase and three-phase cleaning machines includes: a DC brushless motor body 1, and a control unit arranged on the DC brushless motor body 1, and the control unit is provided with a power supply input terminal 3. The control unit includes: a wide range auxiliary power board 4, the wide range auxiliary power board 4 is provided with a first control interface 5 and a power supply output interface 6, and the power supply input terminal 3 is arranged on the wide range auxiliary power board 4; a CPU main control board 7, the CPU main board is provided with a first communication interface 8 and a second communication interface 9, the first communication interface 8 is electrically connected to the first control interface 5; a single-phase / three-phase rectifier module 10, the single-phase / three-phase rectifier module 10 is provided with an AC input interface 11 and a DC output interface 12, the AC input interface 11 is electrically connected to the power supply output interface 6; an IGBT power drive board 13, the IGBT power drive board 13 is provided with a DC input interface 14, a second control interface 15 and a motor output interface 16, the DC input interface 14 is electrically connected to the DC output interface 12, the second control interface 15 is electrically connected to the second communication interface 9, and the motor output interface 16 is electrically connected to the DC brushless motor body 1. The IGBT power drive board 13 is a monomer structure.

[0015] In the above configuration, the wide range auxiliary power board 4 covers three-phase 380V and single-phase 220V AC, so it can be connected to a variety of different power grids and meet the operation requirements. The IGBT power driver board 13 integrates a single direct-insertion high-voltage rectifier diode and a direct-insertion I BGT single tube into a patch process, and the power heating device is integrated into a module, which has smaller thermal resistance and faster heat dissipation.

[0016] The control unit further includes a display 17 and a control component 18 , and the display 17 and the control component 18 are electrically connected to the CPU main control board 7 , respectively.

[0017] Through this configuration, the display 17 is used to display the current operating voltage, and the control component 18 includes a start / stop button of the brushless DC motor body 1 , and an operation signal interface, thereby meeting the operating requirements of the brushless DC motor body 1 .

[0018] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A brushless DC motor and control system for cleaning machines applicable to single-phase and three-phase applications, characterized in that: include: A DC brushless motor body (1), and a control unit arranged on the DC brushless motor body (1), wherein the control unit is provided with a power supply input terminal (3).

2. A brushless DC motor and control system for cleaning machines applicable to single-phase and three-phase use according to claim 1, characterized in that: The control unit comprises: A wide-range auxiliary power board (4), the wide-range auxiliary power board (4) being provided with a first control interface (5) and a power supply output interface (6), the power supply input terminal (3) being arranged on the wide-range auxiliary power board (4); A CPU main control board (7), wherein the CPU main board is provided with a first communication interface (8) and a second communication interface (9), wherein the first communication interface (8) is electrically connected to the first control interface (5); A single-phase / three-phase rectifier module (10), wherein the single-phase / three-phase rectifier module (10) is provided with an AC input interface (11) and a DC output interface (12), and the AC input interface (11) is electrically connected to the power supply output interface (6); An IGBT power drive board (13), the IGBT power drive board (13) being provided with a DC input interface (14), a second control interface (15) and a motor output interface (16), the DC input interface (14) being electrically connected to the DC output interface (12), the second control interface (15) being electrically connected to the second communication interface (9), and the motor output interface (16) being electrically connected to the DC brushless motor body (1).

3. The brushless DC motor and control system for cleaning machines applicable to single-phase and three-phase use according to claim 2 is characterized in that: The control unit also includes a display (17) and a control component (18), and the display (17) and the control component (18) are electrically connected to the CPU main control board (7) respectively.

4. The brushless DC motor and control system for cleaning machines applicable to single-phase and three-phase use according to claim 2, characterized in that: The IGBT power driving board (13) is a single body structure.

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