Electric control box of mobile square cabin
By integrating power supply and control module design, the problems of inflexible power supply and complex control logic in the electrical system of mobile cabins have been solved, achieving stable power supply and safe operation, and improving the continuity of equipment operation and management efficiency.
Patent Information
- Application Number
- CN202423079892.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional mobile shelter electrical systems suffer from inflexible power supply, failing to quickly adapt to power demand switching under different working conditions. The control logic of electrical equipment is complex and dispersed, lacking integrated control units, resulting in high management and maintenance difficulty and potential electrical safety hazards.
The system adopts an integrated design of power supply module, motor drive module and control module, including components such as power interlock transfer switch, inverter, DC contactor, relay, etc., to realize flexible switching between mains power and battery pack, provide stable power supply, and monitor pneumatic system parameters in real time through regulating valve sensor and pressure control valve to ensure safe operation of equipment.
It achieves stable power supply in different environments, improves the continuity and efficiency of equipment operation, reduces the risk of equipment failure, and ensures the safety and reliability of electrical systems.
Smart Images
Figure CN223652009U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical control technology, and in particular to an electrical control box for a mobile cabin. Background Technology
[0002] With the increasing demand for mobile operations and emergency response capabilities in modern society, mobile modular units, as a type of equipment that can be quickly deployed and perform tasks in a variety of complex environments, are finding increasingly wide applications, covering multiple important fields such as communications, medical care, emergency rescue, and military.
[0003] In the practical application of mobile modular shelters, ensuring the stable, efficient, and safe operation of their internal electrical equipment under different scenarios has become a key technical issue. On the one hand, the shelter needs to maintain a certain degree of autonomy during transportation and loading / unloading, relying on its own power supply to power necessary equipment (such as lifting devices and loading / unloading equipment). On the other hand, after arriving at the base station and connecting to the mains power, it needs to achieve a reasonable switch between the mains power and the internal power system, while providing stable power support for the base station's working equipment and ensuring effective management of the batteries. Traditional mobile modular shelter electrical systems often have many shortcomings. For example, the power supply flexibility is poor, unable to quickly adapt to the power supply demand switching under different working conditions, which can easily lead to equipment operation interruptions or unstable power supply. The control logic between various electrical devices is complex and scattered, lacking an integrated control unit, making system management and maintenance difficult. Once a fault occurs, troubleshooting and repair are time-consuming and labor-intensive. In addition, in terms of safety, due to the involvement of multiple electrical devices and complex power conversion processes, the lack of effective protection and monitoring measures can easily lead to electrical safety accidents, threatening personnel safety and normal equipment operation. At present, a mobile modular shelter electrical control box is needed. Utility Model Content
[0004] To address the problems of inflexible power supply and lack of integrated control units in the electrical systems of mobile shelters, this utility model provides an electrical control box for mobile shelters.
[0005] Firstly, the electrical control box for a mobile shelter provided by this utility model adopts the following technical solution:
[0006] A mobile shelter electrical control box, comprising:
[0007] The system includes a power supply module, a motor drive module, a control module, and a connection module. The power supply module is connected to the motor drive module and the control module via the connection module.
[0008] The power supply module includes a battery pack, an AC power input interface, an inverter, and a switching power supply. The connection module includes a power interlock switch, a grounding terminal block, and an air conditioner. The AC power input interface is connected to the inverter. One output of the inverter is connected to the base station equipment, and the other output of the inverter is connected to the battery pack via the power interlock switch. The motor drive module includes a lifting motor, a DC push rod, a motor driver, and a DC contactor. The control module includes a remote control receiver box, a relay, a solenoid valve, a regulating valve sensor, a pressure control valve, and an air pump.
[0009] Furthermore, the power interlocking transfer switch includes a first interlocking transfer switch and a second interlocking transfer switch. The input terminal of the first interlocking transfer switch is connected to the mains power input interface, one output terminal of the first interlocking transfer switch is connected to the air conditioner and the socket, and the other output terminal of the first interlocking transfer switch is connected to the input terminal of the inverter.
[0010] Furthermore, the contacts of the DC contactor are connected in series to the power lines of the lifting motor and the DC push rod to control the on / off state of the motor power supply.
[0011] Furthermore, the DC contactor includes a first DC contactor, a second DC contactor, a third DC contactor, and a fourth DC contactor, and the control terminals of the DC contactors are all connected to the output terminals of the relays.
[0012] Furthermore, the EN signal terminal of the motor driver is connected to the third and fourth DC contactors, the F / R signal terminal of the motor driver is connected to a relay for realizing forward and reverse control of the motor, the COM terminal of the motor driver is connected to the second DC contactor, and the BRK terminal of the motor driver is connected to the first DC contactor for motor braking and speed regulation functions.
[0013] Furthermore, the input terminal of the relay is connected to the signal output terminal of the remote control receiver box, and the output terminal of the relay is connected to the motor driver, the solenoid valve, and the air pump, respectively.
[0014] Furthermore, the solenoid valve is controlled by a relay and is used to control the valve switching in the pneumatic pipeline.
[0015] Furthermore, the grounding terminal block is connected to the PE terminal of the mains power access interface to provide grounding protection.
[0016] Furthermore, the power supply terminal of the motor driver is connected to a switching power supply, and the output terminal of the motor driver is connected to a lifting motor and a DC push rod, respectively.
[0017] Furthermore, the regulating valve sensor and pressure control valve are installed in the pneumatic pipeline to monitor the parameters in the pneumatic pipeline, and the regulating valve sensor and pressure control valve feed back signals to the control circuit of the relay to realize automatic adjustment.
[0018] In summary, this utility model has the following beneficial technical effects:
[0019] 1. This utility model achieves flexible switching between mains power and battery power supply through a first interlocking switch and a second interlocking switch. When the mains power is normal, the first interlocking switch introduces mains power into the inverter, one path to power the base station equipment and the other path to charge the battery pack, while also providing mains power for air conditioners and sockets. Once the mains power fails, it can quickly switch to battery power supply to ensure uninterrupted operation of the equipment in the mobile cabin, effectively avoiding equipment downtime caused by power outages, improving the continuity of operation of the mobile cabin in various environments, and enhancing overall work efficiency.
[0020] 2. This utility model uses an inverter to convert mains power into a voltage suitable for charging base station equipment and battery packs, while the switching power supply provides a stable operating voltage for control circuit components such as motor drivers. Different devices have different requirements for power supply voltage and characteristics. This power conversion and distribution method ensures that each device receives a suitable power supply, enabling it to operate stably under rated operating conditions and reducing the risk of equipment failure due to power mismatch.
[0021] 3. The contacts of the DC contactor of this utility model are connected in series in the motor power supply line, and its control terminal is controlled by the relay output signal. This connection method can effectively control the power supply during motor start-up, stop and operation, avoiding excessive current impact on the motor during start-up and damage caused by abnormal conditions during operation.
[0022] 4. The regulating valve sensor and pressure control valve of this utility model are installed in the pneumatic pipeline to monitor the parameters in the pneumatic pipeline in real time and feed the signal back to the control circuit of the relay to realize automatic adjustment. When the pressure, flow rate and other parameters in the pneumatic system change, the control circuit automatically adjusts the working state of the solenoid valve or air pump according to the feedback signal to keep the system in the best working state at all times.
[0023] 5. The grounding terminal block of this utility model is connected to the PE terminal of the mains power access interface, providing reliable grounding protection for the entire system. Attached Figure Description
[0024] Figure 1 This is a power supply main circuit diagram of an electrical control box for a mobile cabin according to an embodiment of this utility model.
[0025] Figure 2This is a circuit diagram of the motor driver in the control box of a mobile cabin electrical control box according to an embodiment of this utility model.
[0026] Figure 3 This is a circuit diagram of the control box relay control circuit of a mobile cabin electrical control box according to an embodiment of this utility model.
[0027] Figure 4 This is a circuit diagram of the relay control circuit of another control box of the electrical control box of a mobile cabin according to an embodiment of this utility model.
[0028] Figure 5 This is a control circuit diagram of the relay coil of the electrical control box of a mobile cabin according to an embodiment of this utility model.
[0029] Figure 6 This is a circuit diagram of the air pump drive circuit of the electrical control box of a mobile cabin according to an embodiment of this utility model. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings.
[0031] Example 1
[0032] Reference Figure 1 An electrical control box for a mobile shelter according to this embodiment includes:
[0033] The system includes a power supply module, a motor drive module, a control module, and a connection module. The power supply module is connected to the motor drive module and the control module via the connection module.
[0034] The power supply module includes a battery pack, an AC power input interface, an inverter, and a switching power supply. The connection module includes a power interlock switch, a grounding terminal block, and an air conditioner. The AC power input interface is connected to the inverter. One output of the inverter is connected to the base station equipment, and the other output of the inverter is connected to the battery pack via the power interlock switch. The motor drive module includes a lifting motor, a DC push rod, a motor driver, and a DC contactor. The control module includes a remote control receiver box, a relay, a solenoid valve, a regulating valve sensor, a pressure control valve, and an air pump.
[0035] Specifically,
[0036] like Figure 1As shown, when the mains power is in normal supply condition, the mains voltages L, N, and PE enter the system through the first interlocked transfer switch. This switch directly distributes one path of mains power to the air conditioner and sockets, ensuring their normal operation; the other path is sent to the inverter input. The inverter starts, converting the mains power into a stable DC voltage of 48V. One 48V output directly powers the base station equipment, while the other path connects to the battery pack via the power interlocked transfer switch, initiating battery charging. At this time, the battery pack is either charging or on standby as a backup power source. The switching power supply then converts the 48V to 24V to provide the appropriate operating voltage for components in the control circuit (such as relay coils). The entire system enters mains power supply mode. In this mode, the battery pack is connected to the inverter via the interlocked transfer switch, either charging or on standby as a backup power source, ensuring continuous power supply capability in the event of mains power failure.
[0037] In the event of a mains power outage or when base stations such as transport, loading / unloading, and mast lifting are not operational, the dual-power interlock switch automatically switches to battery power supply mode. The first interlock switch detects the lack of mains power and triggers the power interlock switch to switch the battery pack to power supply mode. Power from the battery pack is then supplied through the second interlock switch or directly to the motor drive module and other equipment requiring power, ensuring continued system operation. At this time, the battery pack provides power to equipment such as the lifting motor and DC push rod, and the system enters battery power supply mode, maintaining the normal operation of basic functions within the shelter. The battery pack's L and N output lines provide power support to platform-type electrical equipment such as the lifting mast, self-loading motor, and forward push rod, ensuring the basic operation of the shelter in the absence of mains power.
[0038] Motor drive control connection
[0039] like Figure 2 , Figure 3 As shown, the key control signal terminals (EN, F / R, COM, BRK, etc.) of the motor driver (BLD-750) are tightly connected to the DC contactor and relay control circuits. Specifically, the motor driver enable signal EN is connected to DC contactors 3 and 4 (the third and fourth direct contactors) and related relays to jointly control the start and stop of the motor; the motor driver forward and reverse control signal F / R is connected to the relays that control forward and backward movement to achieve precise control of the motor's direction; the motor driver common terminal signal COM is connected to components such as DC contactor 2 (the second DC contactor), and the motor driver brake signal BRK is connected to components such as DC contactor 1 to jointly realize the motor's braking and speed regulation functions.
[0040] The contacts of DC contactors 1-4 are connected in series in the motor power supply line. Their control terminals receive signals from relay control circuits or other control logic, and achieve precise on / off control of the motor power supply based on the control signals. At the same time, the power lines of the lifting motor and the DC push rod are connected to the output terminals of the DC contactors. The operating status of the motor (such as speed, direction, start / stop, etc.) is precisely regulated by the motor driver according to the received comprehensive control signals.
[0041] Control signal transmission and equipment action control
[0042] like Figure 4 , Figure 5 As shown, the remote control receiver box receives various control signals from the remote control and transmits them to the relay control circuit of the control box via a dedicated line. Specifically, the POWER signal controls the power supply to the entire system; the MAIN signal controls the start and stop of the main functional modules; the UP, DOWN, EAST, WEST, SOUTH, and NORTH signals correspond to the lifting, moving in various directions, and other actions of the equipment, respectively; and the RO / START signal controls the operation or start-up sequence of the equipment.
[0043] like Figure 3 , Figure 4 , Figure 5 As shown, in the relay control circuit of the control box, the remote control signal or other control signal (such as the input signal of the control panel) is decoded and logically processed, and then drives the corresponding relays (KA1-KA7, etc.) to perform the action of engaging or disengaging. For example, when the UP signal is received, the relays that control the lifting motor to rise (such as KA1 and KA4, etc.) are engaged, and the motor driver controls the lifting motor to rotate in the forward direction according to this signal, so as to realize the lifting action of the equipment; when the EAST signal is received, the relays that control the east-west direction to move (such as KA2 and KA5, etc.) are activated, which in turn drive the DC push rod or other actuators to realize the eastward movement of the equipment.
[0044] like Figure 3 , Figure 4 As shown, the control terminals of solenoid valves 1 and 2 are connected to relays. The relays output signals according to the control logic to control the on / off state of the solenoid valves, thereby achieving precise control of the valves in the hydraulic or pneumatic system. For example, when a hydraulic device needs to be started, the relevant relays are activated, driving the solenoid valves to open, allowing hydraulic oil to flow and pushing the hydraulic device to perform the corresponding action.
[0045] like Figure 4 , Figure 5 , Figure 6As shown, the regulating valve sensor and pressure control valve monitor key parameters such as pressure and flow rate in the system in real time and feed the monitoring data back to the control circuit. Based on the feedback signal, the control circuit adjusts the output states of components such as relays and motor drivers in a timely manner to achieve automated regulation and precise control of the equipment. For example, when the pressure control valve detects that the system pressure is too high, it feeds a signal back to the control circuit. The control circuit immediately controls the relay corresponding to the air pump to disconnect, stopping the air pump from working. Simultaneously, it adjusts the operating state of the solenoid valve to restore the system pressure to the normal range.
[0046] Through the above-mentioned reasonable component design and precise connection relationship, the electrical control unit of this mobile cabin can achieve stable power supply, precise control and safe operation under different working conditions, and fully meet the diverse functional requirements of the mobile cabin.
[0047] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A mobile modular cabin electrical control box, characterized in that, include: The system includes a power supply module, a motor drive module, a control module, and a connection module. The power supply module is connected to the motor drive module and the control module via the connection module. The power supply module includes a battery pack, an AC power input interface, an inverter, and a switching power supply. The connection module includes a power interlock switch, a grounding terminal block, and an air conditioner. The AC power input interface is connected to the inverter. One output of the inverter is connected to the base station equipment, and the other output of the inverter is connected to the battery pack via the power interlock switch. The motor drive module includes a lifting motor, a DC push rod, a motor driver, and a DC contactor. The control module includes a remote control receiver box, a relay, a solenoid valve, a regulating valve sensor, a pressure control valve, and an air pump.
2. The mobile cabin electrical control box according to claim 1, characterized in that, The power interlocking transfer switch includes a first interlocking transfer switch and a second interlocking transfer switch. The input terminal of the first interlocking transfer switch is connected to the mains power input interface, one output terminal of the first interlocking transfer switch is connected to the air conditioner and the socket, and the other output terminal of the first interlocking transfer switch is connected to the input terminal of the inverter.
3. The mobile cabin electrical control box according to claim 2, characterized in that, The contacts of the DC contactor are connected in series to the power lines of the lifting motor and the DC push rod to control the on / off state of the motor power.
4. The mobile cabin electrical control box according to claim 3, characterized in that, The DC contactor includes a first DC contactor, a second DC contactor, a third DC contactor, and a fourth DC contactor, and the control terminals of the DC contactors are all connected to the output terminals of the relays.
5. The mobile cabin electrical control box according to claim 4, characterized in that, The EN signal terminal of the motor driver is connected to the third and fourth DC contactors, and the F / R signal terminal of the motor driver is connected to a relay for realizing forward and reverse control of the motor. The COM terminal of the motor driver is connected to the second DC contactor, and the BRK terminal of the motor driver is connected to the first DC contactor for motor braking and speed regulation functions.
6. The mobile cabin electrical control box according to claim 5, characterized in that, The input terminal of the relay is connected to the signal output terminal of the remote control receiver box, and the output terminal of the relay is connected to the motor driver, the solenoid valve and the air pump respectively.
7. The mobile cabin electrical control box according to claim 6, characterized in that, The solenoid valve is controlled by a relay and is used to control the opening and closing of valves in the pneumatic pipeline.
8. The mobile cabin electrical control box according to claim 7, characterized in that, The grounding terminal block is connected to the PE terminal of the mains power access interface to provide grounding protection.
9. The mobile cabin electrical control box according to claim 8, characterized in that, The power supply terminal of the motor driver is connected to a switching power supply, and the output terminal of the motor driver is connected to a lifting motor and a DC push rod, respectively.
10. The electrical control box for a mobile shelter according to claim 9, characterized in that, The regulating valve sensor and pressure control valve are installed in the pneumatic pipeline to monitor the parameters in the pneumatic pipeline. The regulating valve sensor and pressure control valve feed back signals to the control circuit of the relay to realize automatic adjustment.