A portable permanent magnet synchronous motor driver

Abstract

A portable permanent magnet synchronous motor driver, comprising a cabinet, a PCB, a rectification module, an inverter module and a capacitor are installed in the cabinet, the rectification module and the inverter module are integrated on the PCB in the form of a circuit unit, the capacitor is electrically connected with the PCB, and the rectification module, the inverter module and the capacitor are connected and matched through the PCB to form a frequency conversion power conversion circuit. Compared with the prior art, the application has the following beneficial technical effects: the frequency converter is deconstructed, and the core components are integrated on the PCB. This integrated design reduces the connection cable, the idle space and the redundant material, thereby realizing the reduction of the overall volume of the driver and the weight reduction.

Description

Technical Field

[0001] This utility model belongs to the field of water pump driver technology, specifically relating to a portable permanent magnet synchronous motor driver. Background Technology

[0002] In applications such as emergency drainage, disaster relief, and temporary water supply, permanent magnet synchronous motor drives that power water pumps are critical equipment. Currently, the mainstream drives on the market adopt a traditional "modular" construction scheme, which uses a standard industrial electrical control cabinet as a carrier, with independent frequency converters and other discrete electrical components centrally installed inside.

[0003] While this traditional technical solution can functionally drive a motor, the independent, standardized structures of each functional unit (such as the frequency converter) require space within the control cabinet for installation, heat dissipation, and maintenance, resulting in extremely low space utilization for the entire device. The numerous metal cabinets, independent cooling fans, and heavy connectors further increase the overall weight of the equipment. This makes moving the equipment extremely inconvenient and severely impacts the speed and efficiency of emergency response.

[0004] Therefore, there is an urgent need in the field for a new type of permanent magnet synchronous motor driver with a lightweight and portable design. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0006] A portable permanent magnet synchronous motor driver includes a cabinet, in which a PCB, a rectifier module, an inverter module, and a capacitor are installed. The rectifier module and the inverter module are integrated on the PCB as circuit units, and the capacitor is electrically connected to the PCB. The rectifier module, the inverter module, and the capacitor are connected and cooperate through the PCB to form a frequency conversion power conversion circuit.

[0007] In a preferred embodiment of the driver, the cabinet is provided with a base plate, which divides the cavity inside the cabinet into a front cavity and a back cavity. The PCB is installed in the front cavity, the capacitor is installed in the back cavity, and the cabinet is provided with a front door panel and a back door panel corresponding to the front cavity and the back cavity.

[0008] As a preferred embodiment of the driver, it also includes an inlet quick connector and an outlet quick connector electrically connected to the PCB, the inlet quick connector and the outlet quick connector being disposed in the front cavity, and the front door panel having through holes for the inlet quick connector and the outlet quick connector to be exposed on the front door panel.

[0009] In a preferred embodiment of the driver, the inlet and outlet quick-connect plugs are fitted with dust covers.

[0010] As a preferred embodiment of the driver, an IoT gateway is also included, which is installed within the front cavity.

[0011] As a preferred embodiment of the driver, it also includes a display and control panel electrically connected to the PCB, the display and control panel being installed in the front cavity, and a viewing window for observing the display and control panel being provided on the front door panel.

[0012] As a preferred embodiment of the driver, it also includes a heat dissipation unit, which includes a heat sink and a cooling fan. The heat sink is installed on the substrate at the position corresponding to the PCB. The substrate is a metal substrate. The heat sink, PCB and substrate are thermally connected. The cooling fan is installed in the upper area of ​​the substrate. The back panel is provided with heat dissipation holes at the position corresponding to the cooling fan.

[0013] As a preferred embodiment of the driver, the front door panel is provided with several operation buttons that are electrically connected to the PCB.

[0014] As a preferred embodiment of the drive, the cabinet is provided with handles and feet, and there are two sets of handles, which are respectively located at the top and bottom of the cabinet.

[0015] Compared with the prior art, this application has the following beneficial technical effects: by deconstructing the frequency converter and integrating its core components onto the PCB, this integrated design reduces connecting cables, empty space and redundant materials, thereby achieving a reduction in the overall size and weight of the drive. Attached Figure Description

[0016] Figure 1 For the driver's stereo Figure 1 .

[0017] Figure 2 For the driver's stereo Figure 2 .

[0018] Figure 3 This is the front view of the driver.

[0019] Figure 4 This is the rear view of the drive.

[0020] The following is an explanation of the reference numerals in the attached figures: 10. Cabinet body; 11. Front door panel; 12. Operation buttons; 13. Through hole; 14. Viewing window; 15. Back door panel; 16. Ventilation holes; 17. Base plate; 18. Handle; 19. Feet; 20. Front cavity; 21. PCB; 22. Air circuit breaker; 23. IoT switch; 24. Display and control panel; 25. Incoming quick-connect plug; 26. Outgoing quick-connect plug; 27. Dust cover; 30. Back cavity; 31. Heat sink; 32. Cooling fan; 33. Capacitor. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] In the following embodiments, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this utility model, it should be understood that the terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, and counterclockwise, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Reference Figures 1 to 4 A portable permanent magnet synchronous motor driver includes a cabinet 10, within which a PCB 21 is installed, along with a rectifier module, an inverter module, a capacitor 33, an inlet quick-connect plug 25, an outlet quick-connect plug 26, an air circuit breaker 22, an IoT switch 23, a display and control panel 24, a heat dissipation unit, and operation buttons 12, all electrically connected to the PCB 21. The rectifier module, inverter module, and capacitor 33 work together to achieve frequency conversion power exchange.

[0025] In this application, the rectifier module and inverter module (not shown in the accompanying drawings) are integrated on PCB21 as circuit units. The capacitor 33 is electrically connected to PCB21. The rectifier module, inverter module, and capacitor 33, connected together through PCB21, form a variable frequency power conversion circuit. By deconstructing the rectifier module and inverter module, the core functional modules of the frequency converter, into circuit units and integrating them on PCB21, and efficiently connecting the capacitor 33 through PCB21, the redundant structure and casing of traditional independent frequency converters are eliminated. This integrated design reduces connecting cables, empty space, and redundant materials, thereby reducing the overall size and weight of the driver and improving its portability.

[0026] This application also optimizes the spatial layout of the cabinet 10. Specifically, the cabinet 10 is equipped with a base plate 17, which divides the cavity inside the cabinet 10 into a front cavity 20 and a back cavity 30. The PCB 21 is installed in the front cavity 20, and the capacitor 33 is installed in the back cavity 30. The cabinet 10 is equipped with a front door panel 11 and a back door panel 15 corresponding to the front cavity 20 and the back cavity 30. By dividing the interior of the cabinet 10 into the front cavity 20 and the back cavity 30 through the base plate 17, functional zoning is achieved. Placing the PCB 21, which generates the most heat, and the bulky capacitor 33 in separate cavities not only optimizes the use of internal space and makes the structure more compact, but also facilitates targeted heat dissipation management and makes maintenance and wiring operations of the components inside the front cavity 20 easier. The substrate 17 is a metal substrate 17. The metal substrate 17 serves as a metal partition between the front cavity 20 and the back cavity 30. While separating the cavities, it also provides electromagnetic shielding and isolation between the power circuits, mainly the rectifier module and inverter module, in the front cavity 20 and the components in the back cavity 30. This helps to reduce electromagnetic interference between the two circuits and ensure the stability of the equipment operation.

[0027] Furthermore, the quick-connect inlet plug 25 and quick-connect outlet plug 26 are located within the front cavity 20. The front door panel 11 has through holes 13 for the quick-connect inlet plug 25 and quick-connect outlet plug 26 to protrude from the front door panel 11. Dust covers 27 are fitted onto the quick-connect inlet plug 25 and quick-connect outlet plug 26. The placement of the quick-connect inlet and outlet plugs 26 within the front cavity 20 enables rapid wiring during on-site deployment, significantly improving the efficiency of emergency operations. The dust cover 27 ensures the cleanliness and safety of the interfaces during transportation and storage, enhancing the environmental adaptability and reliability of the equipment.

[0028] Furthermore, the air circuit breaker 22 and the IoT switch 23 are installed within the front cavity 20. The air circuit breaker 22 provides reliable power supply and short-circuit protection. Through the IoT switch 23, users can remotely start / stop, adjust speed, and modify parameters of the equipment via mobile phones, computers, or other terminals, improving convenience and safety.

[0029] Furthermore, the display and control panel 24 is installed inside the front cavity 20, and the front door panel 11 is provided with a viewing window 14 for observing the display and control panel 24. The viewing window 14, together with the display and control panel 24, provides users with an intuitive and user-friendly human-machine interface, making it easy to directly view the equipment's operating status, parameters, and alarm information on-site, thus improving the ease of use of the equipment.

[0030] Furthermore, the heat dissipation unit includes a heat sink 31 and a cooling fan 32. The heat sink 31 is mounted on the substrate 17 at the position corresponding to the PCB 21. The substrate 17 is a metal substrate, and the heat sink 31, PCB 21, and substrate 17 are thermally connected. The cooling fan 32 is mounted in the upper region of the substrate 17, and the back panel 15 has heat dissipation holes 16 at the position corresponding to the cooling fan 32. The substrate 17, acting as a heat conduction medium, can quickly transfer the heat generated by the power devices on the PCB 21 to the heat sink 31 in the back cavity 30, where it is forcibly exhausted by the fan. This compartmentalized heat dissipation design ensures that the device can maintain good heat dissipation performance in a compact space, guaranteeing operational stability and lifespan. Specifically, the heat generated by power devices such as the rectifier module and inverter module on PCB21 during operation is conducted through the metal substrate 17, which is thermally connected to PCB21, to the heat sink 31 located on one side of the back cavity 30 and corresponding to the position of PCB21. A cooling fan 32 is positioned corresponding to the heat sink 31, and the ventilation holes 16 on the back panel 15 are also positioned corresponding to the cooling fan 32, forming an airflow channel in and out of the back cavity 30. Under the forced action of the cooling fan 32, the airflow flows through the heat sink 31 and carries away the heat, thereby achieving continuous heat dissipation for PCB21. Figure 2 In the embodiment shown, there are two cooling fans 32 arranged side by side to increase the air volume of forced air cooling.

[0031] Furthermore, the operation button 12 is located on the front door panel 11. The user can use the operation button 12 to perform operations such as start, stop, debugging and emergency stop, which serves as an effective supplement to remote control and touch screen control, enhancing the flexibility and reliability of equipment operation.

[0032] In addition, to facilitate the handling of the controller, the cabinet 10 is provided with handles 18 and feet 19. There are two sets of handles 18, which are respectively located at the top and bottom of the cabinet 10. The handles 18 facilitate lifting and moving, and the feet 19 provide stable support for the cabinet 10 when it is parked.

[0033] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A portable permanent magnet synchronous motor driver, comprising a cabinet (10), wherein a PCB (21), a rectifier module, an inverter module, and a capacitor (33) are installed inside the cabinet (10), the rectifier module and the inverter module are integrated on the PCB (21) in the form of circuit units, the capacitor (33) is electrically connected to the PCB (21), and the rectifier module, the inverter module, and the capacitor (33) are connected and cooperated through the PCB (21) to form a frequency conversion power conversion circuit; characterized in that: The cabinet (10) is provided with a base plate (17), which divides the cavity inside the cabinet (10) into a front cavity (20) and a back cavity (30). The PCB (21) is installed in the front cavity (20), and the capacitor (33) is installed in the back cavity (30). The cabinet (10) is provided with a front door panel (11) and a back door panel (15) corresponding to the front cavity (20) and the back cavity (30). It also includes a heat dissipation unit, which includes a heat sink (31) and a cooling fan (32). The heat sink (31) is installed on the base plate (17) at the position corresponding to the PCB (21). The base plate (17) is a metal base plate (17). The heat sink (31), the PCB (21) and the base plate (17) are thermally connected. The cooling fan (32) is installed in the upper area of ​​the base plate (17). The back door panel (15) is provided with a heat dissipation hole (16) corresponding to the position of the cooling fan (32).

2. The portable permanent magnet synchronous motor driver according to claim 1, characterized in that, It also includes an inlet quick connector (25) and an outlet quick connector (26) electrically connected to the PCB (21), the inlet quick connector (25) and the outlet quick connector (26) being located in the front cavity (20), and the front door panel (11) having through holes (13) for the inlet quick connector (25) and the outlet quick connector (26) to be exposed on the front door panel (11).

3. A portable permanent magnet synchronous motor driver according to claim 2, characterized in that, Dust covers (27) are fitted on the inlet quick connector (25) and outlet quick connector (26).

4. A portable permanent magnet synchronous motor driver according to claim 1, characterized in that, It also includes an air circuit breaker (22) and an IoT switch (23), which are installed in the front cavity (20).

5. A portable permanent magnet synchronous motor driver according to claim 1, characterized in that, It also includes a display control panel (24) electrically connected to the PCB (21), the display control panel (24) being installed in the front cavity (20), and a viewing window (14) for observing the display control panel (24) being provided on the front door panel (11).

6. A portable permanent magnet synchronous motor driver according to claim 1, characterized in that, The front panel (11) is provided with several operation buttons (12) that are electrically connected to the PCB (21).

7. A portable permanent magnet synchronous motor driver according to claim 1, characterized in that, The cabinet (10) is provided with handles (18) and feet (19). There are two sets of handles (18), which are respectively located at the top and bottom of the cabinet (10).

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