A dual power supply DC motor speed control device

Abstract

This application provides a dual-power DC motor speed control device, including a housing. The housing is equipped with a selector switch, a speed controller, a lithium battery module, an AC-to-DC power supply module, and an output socket. The lithium battery module powers the device via a lithium battery. The AC-to-DC power supply module provides DC power to the device. One end of the selector switch is connected to both the lithium battery module and the AC-to-DC power supply module, and the other end is connected to the speed controller. The speed controller is connected to an external DC motor via the output socket, outputting DC power and adjusting the speed of the external DC motor. The lithium battery module and the AC-to-DC power supply module provide two power supply methods for the external DC motor. The speed controller, located on the housing, adjusts the speed of the external DC motor under both power supply methods, simulating a vehicle operating environment and allowing for testing at different speeds.

Description

Technical Field

[0001] This application relates to the field of rail vehicle testing technology, specifically to a dual-power DC motor speed control device. Background Technology

[0002] During the assembly phase of the "Fuxing" high-speed train, most electric components are driven and controlled by DC 24V power during operation. These include inner and outer sliding doors, sunshades, and electric toilet doors. To ensure that component functionality tests are completed in one go during the assembly phase when the train cannot be powered, thus preventing adjustment issues after the train arrives at the single-stage or train-to-train adjustment workshop, a corresponding power supply method is currently selected based on the motor model used in each component. However, the main method still only provides power and cannot adjust speed. Based on the power supply voltage of the corresponding component's motor, a corresponding switching power supply is used to convert AC 220V to the corresponding DC voltage before connecting it to the motor. This requires external operating buttons and does not allow for speed control. This method only provides power to the motor; the operating buttons require external wiring, which is extremely unsafe and prone to short circuits that could damage the motor. Furthermore, during functional testing, different speeds are required to simulate the real operating environment of the train. Utility Model Content

[0003] This application provides a dual-power DC motor speed control device to solve the problem that existing motor function tests cannot perform speed control tests.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A dual-power DC motor speed control device includes a housing, on which are respectively provided a changeover switch, a speed controller, a lithium battery module, an AC-to-DC power supply module, and an output socket;

[0006] The lithium battery module is used to power the device via a lithium battery;

[0007] The AC-to-DC power supply module is used to provide DC power to the device;

[0008] One end of the transfer switch is connected to the lithium battery module and the AC to DC power supply module, respectively, and the other end of the transfer switch is connected to the speed controller;

[0009] The speed controller is connected to an external DC motor via the output socket, outputs DC power, and adjusts the speed of the external DC motor.

[0010] Optionally, the AC-to-DC power supply module includes a power socket and an AC220V to DC24V switching power supply;

[0011] One end of the power socket is used to connect to an AC220V power supply, and the other end is connected to the AC220V to DC24V switching power supply.

[0012] The AC220V to DC24V switching power supply is connected to the AC to DC power supply module and is used to convert AC 220V to DC 24V.

[0013] Optionally, it also includes:

[0014] A lithium battery power indicator light is connected to the changeover switch and is used to turn on when the lithium battery module is powered.

[0015] An AC-to-DC power supply indicator light is connected to the changeover switch and is used to turn on when the AC-to-DC power supply module supplies power.

[0016] Optionally, it also includes:

[0017] A lithium battery charging interface is connected to the lithium battery module and is used to charge the lithium battery module.

[0018] Optionally, it also includes:

[0019] The first forward / reverse input module is connected to the changeover switch and the lithium battery module, and is used to control the external DC motor to perform forward and reverse rotation when the lithium battery module supplies power.

[0020] Optionally, the first forward / reverse input module includes:

[0021] The first forward button is connected to both the selector switch and the lithium battery module.

[0022] The first reverse button is connected to both the changeover switch and the lithium battery module.

[0023] Optionally, it also includes:

[0024] The second forward / reverse input module is connected to the changeover switch and is used to control the external DC motor to rotate forward and reverse when the AC to DC power supply module supplies power.

[0025] Optionally, the second forward / reverse input module includes:

[0026] The second forward button is connected to the changeover switch and the AC220V to DC24V switching power supply, respectively.

[0027] The second reverse button is connected to both the changeover switch and the AC220V to DC24V switching power supply.

[0028] Optionally, it also includes:

[0029] A power indicator is connected to both the selector switch and the lithium battery module, and is used to display the power level when the lithium battery module supplies power.

[0030] Optionally, it also includes:

[0031] The emergency stop button is connected to both the lithium battery module and the AC220V to DC24V switching power supply.

[0032] This application provides a dual-power DC motor speed control device, comprising a housing. The housing is equipped with a changeover switch, a speed controller, a lithium battery module, an AC-to-DC power supply module, and an output socket. The lithium battery module supplies power to the device via a lithium battery. The AC-to-DC power supply module supplies DC power to the device. One end of the changeover switch is connected to both the lithium battery module and the AC-to-DC power supply module, and the other end is connected to the speed controller. The speed controller is connected to an external DC motor via the output socket, outputting DC power and adjusting the speed of the external DC motor.

[0033] The dual-power DC motor speed control device provided in this application embodiment has the following technical advantages compared to the prior art:

[0034] In this application, the enclosure is equipped with a changeover switch, a speed controller, a lithium battery module, an AC-to-DC power supply module, and an output socket. The lithium battery module and the AC-to-DC power supply module provide two power supply methods to power the external DC motor. The enclosure is also equipped with a speed controller, which adjusts the speed of the external DC motor under the two power supply methods to simulate the vehicle operating environment and conduct tests at different speeds. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0036] Figure 1 This is a schematic diagram of a dual-power DC motor speed control device provided in an embodiment of this application.

[0037] The following labels are shown in the attached diagram:

[0038] 1. Changeover switch; 2. Speed ​​controller; 3. Battery level indicator; 4. Output socket; 5. Power socket; 6. Emergency stop button; 7. Lithium battery power indicator; 8. AC to DC power indicator; 9. Lithium battery charging interface; 10. First forward button; 11. First reverse button; 12. Second forward button; 13. Second reverse button. Detailed Implementation

[0039] This utility model discloses a dual-power DC motor speed control device to solve the problem that existing motor function tests cannot perform speed control tests.

[0040] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0041] Please see Figure 1 , Figure 1 This is a schematic diagram of a dual-power DC motor speed control device provided in an embodiment of this application.

[0042] In one specific embodiment, the dual-power DC motor speed control device provided in this application includes a housing, on which a changeover switch 1, a speed controller 2, a lithium battery module, an AC-to-DC power supply module, and an output socket 4 are respectively provided;

[0043] The enclosure features a hollow cavity and a mounting panel. A selector switch 1, speed controller 2, AC-to-DC power supply module, and output socket 4 protrude from the mounting panel for easy operation. The mounting panel is preferably made of 2mm thick aluminum alloy. The lithium battery module is located within the hollow cavity, resulting in a compact structure. The lithium battery module powers the device via a lithium battery, supplying power to an external DC motor. The AC-to-DC power supply module provides DC power to the device, supplying DC power to the external DC motor. This module can be configured as a transformer. One end of the selector switch 1 connects to both the lithium battery module and the AC-to-DC power supply module, allowing for easy switching between power modes. This eliminates the need for complex setup or tools, ensuring that only the selected power source is activated, thus avoiding the risk of accidental short circuits or other electrical faults. Specifically, when the selector switch 1 is set to "1", it switches to lithium battery power mode; when it is set to "2", it switches to AC-to-DC power mode.

[0044] The lithium battery module can be set to DC 18V-21V, which can be set according to the working voltage of the external DC motor. The AC to DC power supply module is used to convert AC 220V to DC 24V. It provides two power inputs and can be used in the absence of mains power, making it suitable for different experimental environments. Even if one power supply fails, the other power supply can be used as a backup, improving the reliability and availability of the system.

[0045] Speed ​​controller 2 is connected to output socket 4, which outputs DC power to an external DC motor. Speed ​​controller 2 adjusts the speed of the external DC motor by regulating the output voltage, achieving precise speed control to adapt to different application scenarios. It can adjust the motor speed according to load requirements, contributing to energy saving and extending motor life. Speed ​​controller 2 is a mature existing device, and its structure will not be described in detail. Speed ​​controller 2 displays the battery percentage, and a knob is used to adjust the battery percentage, which can be completed between 0 and 100%.

[0046] The dual-power DC motor speed control device provided in this application embodiment has the following technical advantages compared to the prior art:

[0047] In this application, the enclosure is equipped with a changeover switch 1, a speed controller 2, a lithium battery module, an AC-to-DC power supply module, and an output socket 4. The lithium battery module and the AC-to-DC power supply module provide two power supply methods to power the external DC motor. At the same time, the enclosure is also equipped with a speed controller 2. Under the two power supply methods, the speed controller 2 can adjust the speed of the external DC motor to simulate the vehicle operating environment and conduct tests at different speeds.

[0048] Specifically, the AC to DC power supply module includes power socket 5 and an AC220V to DC24V switching power supply;

[0049] One end of power socket 5 is used to connect to AC220V power supply, and the other end is connected to AC220V to DC24V switching power supply.

[0050] The AC220V to DC24V switching power supply is connected to the AC to DC power supply module to convert AC 220V to DC 24V. The switching power supply ensures the stability and high efficiency of the output voltage and reduces energy loss.

[0051] It connects to standard AC power via power socket 5, making it easy to access, highly versatile, and convenient for on-site deployment. It uses a switching power supply, which is highly efficient, compact, and generates little heat, making it suitable for long-term operation. When in use, simply insert the three-hole power cord into the socket hole. Power socket 5 also has a switch, so power can only be supplied when the power switch is turned on.

[0052] In this specific embodiment, the control device further includes a lithium battery power supply indicator 7 and an AC-to-DC power supply indicator 8. The lithium battery power supply indicator 7 is connected to the changeover switch 1 and is activated when the lithium battery module is powered. The AC-to-DC power supply indicator 8 is also connected to the changeover switch 1 and is activated when the AC-to-DC power supply module is powered. Operators can monitor the current power supply mode in real time to prevent the motor from suddenly stopping due to depletion of power. The indicator also provides timely reminders to replace or recharge the lithium battery when its power is low. When the lithium battery power supply indicator 7 is lit, it indicates that the lithium battery power supply mode is operating normally; when the AC-to-DC power supply indicator 8 is lit, it indicates that the DC24V power supply mode is operating normally.

[0053] On the other hand, to charge the lithium battery module, the mounting panel of the enclosure is equipped with a lithium battery charging interface 9, which connects to the lithium battery module to charge it. This eliminates the need for frequent battery replacements, extends the equipment's lifespan, and reduces downtime caused by battery changes. The lithium battery charging interface 9 includes a five-hole Vago plug and a DB9 plug. The DB9 plug is used to connect to the data jack of an external charger; its pinholes are used to control data during dry cell battery charging. The five-hole Vago plug is used to connect to the power output jack of an external charger; its pinholes are used to control power during lithium battery charging.

[0054] Furthermore, to achieve control of the external DC motor, the aforementioned control device also includes a first forward / reverse input module, which is connected to the selector switch 1 and the lithium battery module respectively. When the lithium battery module supplies power, it controls the external DC motor to rotate in both directions. Specifically, the first forward / reverse input module includes a first forward button 10 and a first reverse button 11. The first forward button 10 is connected to the selector switch 1 and the lithium battery module; the first reverse button 11 is also connected to the selector switch 1 and the lithium battery module. Even without an external control signal, it can achieve independent control of the motor direction, making it particularly suitable for mobile devices or tools that require manual direction control. Simultaneously, the physical button design is easy to identify and operate, reducing the probability of accidental operation; the mechanical buttons have a fast response, making them suitable for emergency operation scenarios.

[0055] When using AC power, the motor can also be controlled to rotate in both directions via the second forward and reverse input module. Regardless of the power supply method, it has complete directional control capability, enhancing the adaptability and functionality of the equipment under different working conditions.

[0056] In one embodiment, the control device further includes a power display 3 for displaying the remaining power of the lithium battery module, which helps the user predict the battery life and avoid interrupting the motor midway, thereby reasonably arranging the operation time or charging time and improving the operation efficiency.

[0057] To further enhance device safety, an emergency stop button 6 is provided, which is connected to both the lithium battery module and the AC220V to DC24V switching power supply. In an emergency, it can cut off the power supply, quickly disconnect all power paths, and prevent the accident from escalating. The emergency stop button 6 can be a large red button for easy identification and triggering.

[0058] A cooling fan is also installed on the side wall of the enclosure. The cooling fan is connected to the lithium battery module and the AC220V to DC24V switching power supply respectively, and performs heat dissipation when power is supplied.

[0059] In one embodiment, the DC24V power supply principle is as follows: the power socket 5 is connected to the AC220V to DC24V switching power supply of the components inside the box to supply power to the switching power supply; the AC220V to DC24V is connected to the changeover switch 1 and the emergency stop button 6 for power supply and power cut-off of the device; after the device is powered on, DC24V power is supplied to the AC to DC power supply indicator 8, two of the DC24V solenoid valves of the components inside the box, the speed controller 2, the fan, the second forward button 12, the second reverse button 13 and the output socket 4 respectively.

[0060] In another embodiment, the lithium battery power supply electrical principle is as follows: the lithium battery module is connected to the changeover switch 1 and the emergency stop button 6 for power supply and power cut-off of the device; after the device is powered on, the lithium battery module supplies power to the lithium battery power indicator 7, two of the DC24V solenoid valves in the box, the speed controller 2, the power display 3, the fan, the first forward button 10, the first reverse button 11 and the output socket 4 respectively.

[0061] When an external power source is available, use the external power supply method. Plug in the power source, then turn the selector switch 1 to the "1" position, and then turn on the emergency stop button 6. At this time, the green indicator light will light up, indicating that the DC power supply mode is working. At this time, adjust the PWM speed controller knob from slow to fast. Then, press the second forward button 12 and the second reverse button 13 to control the external drive motor.

[0062] When an external power source is inconvenient, we use a lithium battery power supply. When the selector switch 1 is in the "2" position, the red indicator light will illuminate, indicating that the lithium battery power supply mode is working. The power display 3 shows the power level. Adjust the PWM speed controller knob from slow to fast. Pressing the first forward button 10 and the first reverse button 11 will control the external drive motor.

[0063] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0064] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A dual-power DC motor speed control device, characterized in that, The enclosure includes a housing, which is equipped with a selector switch, a speed controller, a lithium battery module, an AC-to-DC power supply module, and an output socket. The lithium battery module is used to power the device via a lithium battery; The AC-to-DC power supply module is used to provide DC power to the device; One end of the transfer switch is connected to the lithium battery module and the AC to DC power supply module, respectively, and the other end of the transfer switch is connected to the speed controller; The speed controller is connected to an external DC motor via the output socket, outputs DC power, and adjusts the speed of the external DC motor.

2. The dual-power DC motor speed control device according to claim 1, characterized in that, The AC to DC power supply module includes a power socket and an AC220V to DC24V switching power supply. One end of the power socket is used to connect to an AC220V power supply, and the other end is connected to the AC220V to DC24V switching power supply. The AC220V to DC24V switching power supply is connected to the AC to DC power supply module and is used to convert AC 220V to DC 24V.

3. The dual-power DC motor speed control device according to claim 1, characterized in that, Also includes: A lithium battery power indicator light is connected to the changeover switch and is used to turn on when the lithium battery module is powered. An AC-to-DC power supply indicator light is connected to the changeover switch and is used to turn on when the AC-to-DC power supply module supplies power.

4. The dual-power DC motor speed control device according to claim 1, characterized in that, Also includes: A lithium battery charging interface is connected to the lithium battery module and is used to charge the lithium battery module.

5. The dual-power DC motor speed control device according to claim 1, characterized in that, Also includes: The first forward / reverse input module is connected to the changeover switch and the lithium battery module, and is used to control the external DC motor to perform forward and reverse rotation when the lithium battery module supplies power.

6. The dual-power DC motor speed control device according to claim 5, characterized in that, The first forward and reverse input module includes: The first forward button is connected to both the selector switch and the lithium battery module. The first reverse button is connected to both the changeover switch and the lithium battery module.

7. The dual-power DC motor speed control device according to claim 1, characterized in that, Also includes: The second forward / reverse input module is connected to the changeover switch and is used to control the external DC motor to rotate forward and reverse when the AC to DC power supply module supplies power.

8. The dual-power DC motor speed control device according to claim 7, characterized in that, The second forward and reverse input module includes: The second forward button is connected to the changeover switch and the AC220V to DC24V switching power supply, respectively. The second reverse button is connected to both the changeover switch and the AC220V to DC24V switching power supply.

9. The dual-power DC motor speed control device according to claim 1, characterized in that, Also includes: A power indicator is connected to both the selector switch and the lithium battery module, and is used to display the power level when the lithium battery module supplies power.

10. The dual-power DC motor speed control device according to claim 1, characterized in that, Also includes: The emergency stop button is connected to both the lithium battery module and the AC220V to DC24V switching power supply.

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