Steam fabric cleaning machine with intelligent protection design

Abstract

The invention discloses a steam fabric cleaning machine with intelligent protection design. The steam fabric cleaning machine comprises a main control module; the heating control module is electrically connected with the main control module and is used for receiving a control signal sent by the main control module so as to drive the heating module to work; the motor driving module is electrically connected with the main control module and is used for receiving a control signal sent by the main control module so as to drive the motor driving module to work; the power supply management module is used for providing a working power supply for the cleaning machine; and the multiple safety protection module is electrically connected with the main control module and is used for monitoring the working state of the cleaning machine in real time and sending a signal to the main control module to trigger a protection action when the working state is abnormal. The problems that an existing steam fabric cleaning machine electric control system is poor in control effect due to the fact that a traditional relay is adopted, a safety protection mechanism has potential safety hazards, and intelligence is insufficient can be solved.

Description

Technical Field

[0001] This invention relates to the field of cleaning appliance technology, and in particular to a steam fabric cleaning machine with intelligent protection design. Background Technology

[0002] Currently, the electrical control systems of steam fabric cleaning machines on the market mainly use traditional relay control methods, which have the following deep-seated technical problems:

[0003] 1. The safety protection mechanisms are severely inadequate; existing products are generally only equipped with simple fuse overcurrent protection, lacking a systematic safety design: Overvoltage protection is missing: when the mains voltage fluctuates by more than ±10%, it can easily lead to damage to circuit components or insulation breakdown; Undervoltage protection is inadequate: the equipment continues to operate even under excessively low voltage, causing difficulty in starting the motor and severe overheating; Overheat protection is limited: relying solely on thermal fuses results in slow response and low protection accuracy; Dry-burn protection is missing: heating continues even without water, posing a fire hazard; Leakage protection is insufficient: there is a lack of effective grounding fault detection and protection mechanisms; these safety hazards not only affect the service life of the equipment but may also threaten the personal safety of users.

[0004] 2. Outdated heating control technology: Traditional products use simple on / off control methods, which have obvious defects: poor temperature control accuracy: the control accuracy is usually above ±10℃, and it is impossible to achieve stable steam output; low heating efficiency: frequent start-stop leads to increased energy consumption and long heating time, usually requiring 8-10 minutes; large temperature fluctuation: the steam temperature fluctuates greatly, affecting the cleaning effect and user experience; serious heat loss: there is a lack of effective heat preservation and energy recovery design.

[0005] 3. Insufficient level of intelligence: Existing products have obvious shortcomings in terms of intelligence: lack of adaptive capability: unable to adjust working parameters according to different cleaning objects and environmental conditions; weak fault diagnosis capability: can only provide simple fault indications and cannot accurately locate the cause of the fault; no learning function: cannot remember user habits and preference settings; lack of remote control: does not support smart terminals or voice control, resulting in poor ease of use.

[0006] 4. Poor user interaction experience: The human-computer interaction design of existing products has many problems: complex operation: multiple button combinations need to be memorized, resulting in a high learning cost; unclear status indicators: usually only 1-2 indicator lights are provided, which cannot accurately reflect the working status; vague fault prompts: faults are indicated only by the number of flashing lights, which is difficult for users to understand; lack of feedback mechanism: there is no timely visual or auditory feedback after operation.

[0007] 5. Reliability and Durability Issues: Existing products have revealed numerous reliability issues during long-term use: unreasonable circuit design: chaotic component layout, poor heat dissipation, and susceptibility to environmental influences; insufficient protection measures: lack of effective surge protection and electromagnetic compatibility design; improper component selection: use of inferior components to reduce costs, resulting in short lifespan; difficult maintenance: low modularity, requiring professional technicians for repair. Summary of the Invention

[0008] The purpose of this invention is to address the problems of poor performance, safety hazards, and insufficient intelligence in the traditional relay control system of existing steam fabric cleaning machines, and to provide a steam fabric cleaning machine with intelligent protection design.

[0009] To achieve the above objectives, the present invention provides a steam fabric cleaning machine with intelligent protection design, comprising:

[0010] Main control module;

[0011] A heating control module, which is electrically connected to the main control module, is used to receive control signals from the main control module to drive the heating module to work;

[0012] A motor drive module, which is electrically connected to the main control module, is used to receive control signals from the main control module to drive the motor drive module to work.

[0013] A power management module, which provides operating power to the cleaning machine;

[0014] A multi-safety protection module is electrically connected to the main control module and is used to monitor the working status of the cleaning machine in real time and send a signal to the main control module to trigger protection actions when there is an abnormality.

[0015] The multiple security protection modules include:

[0016] Overcurrent protection unit, used to detect input current;

[0017] The overheat protection unit is used to detect the heating temperature;

[0018] A water level protection unit is installed in the water storage device to detect the water level status;

[0019] A misoperation prevention module is used to perform multiple confirmations on critical operation commands;

[0020] The human-machine interaction module is electrically connected to the main control module and is used to receive user commands and display the working status of the cleaning machine.

[0021] As a further description of the above technical solution:

[0022] The heating control module includes a PWM controller employing an adaptive PID algorithm, and the control frequency of the PWM controller is 10kHz.

[0023] As a further description of the above technical solution:

[0024] The overcurrent protection unit uses a reusable electronic fuse, and the protection threshold of the electronic fuse is 10A.

[0025] As a further description of the above technical solution:

[0026] The overheat protection unit includes a hardware temperature switch and a software monitoring circuit connected in series, with a protection temperature of 110°C.

[0027] As a further description of the above technical solution:

[0028] The water level protection unit is a high-precision water level sensor.

[0029] As a further description of the above technical solution:

[0030] The human-machine interaction module includes capacitive touch buttons, dual-color LED status indicators, and a voice prompt module; the voice prompt module is used to provide voice feedback when the device starts up, completes its work, or malfunctions.

[0031] As a further description of the above technical solution:

[0032] The main control module is also connected to a wireless communication module, which is a 433MHz wireless receiver module used to receive control commands issued by a remote controller.

[0033] As a further description of the above technical solution:

[0034] The main control module, power supply, and motor drive module are integrated with a power factor correction circuit to ensure that the power factor of the cleaning machine is not lower than 0.9 and the standby power consumption of the cleaning machine is not higher than 0.5W.

[0035] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0036] 1. In this invention, the cleaning machine's electrical control protection is achieved through a combination of hardware protection, such as mechanical temperature switches and electronic fuses, and software monitoring. Even if the main control chip (software) crashes, the hardware protection can still act as a last line of defense to independently cut off the circuit. Conversely, the software can provide more flexible and earlier warnings and interventions. This redundant design can minimize safety risks.

[0037] 2. In this invention, the electronic fuse responds faster than traditional fuses and can automatically reset without replacement. Real-time monitoring of temperature and current by the software allows for adjustments as soon as abnormal trends appear, preventing the situation from deteriorating to the point of hardware shutdown, thus improving user experience and equipment lifespan, protecting response speed, and significantly improving accuracy.

[0038] 3. This invention solves all known major safety risks such as overcurrent, overvoltage, dry burning, overheating, and misoperation, eliminating equipment damage or personal safety accidents caused by circuit problems from the source, and effectively reducing the failure rate. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a flowchart of the control process for a steam fabric cleaning machine with intelligent protection design.

[0041] Figure 2 This is a control circuit diagram for a steam fabric cleaning machine with intelligent protection design.

[0042] Figure 3 This is a control circuit diagram of the main control module in a steam fabric cleaning machine with intelligent protection design.

[0043] Figure 4 This is a control circuit diagram of the water pump in a steam fabric cleaning machine with intelligent protection design.

[0044] Figure 5 This is a control circuit diagram for a dual-color LED status indicator light in a steam fabric cleaning machine with intelligent protection design.

[0045] Figure 6 This is a circuit diagram of the steam control circuit in a steam fabric cleaning machine with intelligent protection design. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0050] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] Example 1:

[0052] Please see Figure 1-6 This invention provides a steam fabric cleaning machine with intelligent protection design, comprising:

[0053] Main control module;

[0054] A heating control module, which is electrically connected to the main control module, is used to receive control signals from the main control module to drive the heating module to work;

[0055] A motor drive module, which is electrically connected to the main control module, is used to receive control signals from the main control module to drive the motor drive module to work.

[0056] A power management module, which provides operating power to the cleaning machine;

[0057] A multi-safety protection module is electrically connected to the main control module and is used to monitor the working status of the cleaning machine in real time and send a signal to the main control module to trigger protection actions when there is an abnormality.

[0058] The multiple security protection modules include:

[0059] Overcurrent protection unit, used to detect input current;

[0060] The overheat protection unit is used to detect the heating temperature;

[0061] A water level protection unit is installed in the water storage device to detect the water level status;

[0062] A misoperation prevention module is used to perform multiple confirmations on critical operation commands;

[0063] The human-machine interaction module is electrically connected to the main control module and is used to receive user commands and display the working status of the cleaning machine.

[0064] Specifically, the water level protection unit is a high-precision water level sensor. Heating immediately stops when there is no water, ensuring good safety.

[0065] The human-machine interaction module includes capacitive touch buttons, dual-color LED status indicators, and a voice prompt module; the voice prompt module is used to provide voice feedback when the device starts up, completes its work, or malfunctions.

[0066] The main control module is also connected to a wireless communication module, which is a 433MHz wireless receiver module used to receive control commands issued by a remote controller.

[0067] Capacitive touch buttons have a long lifespan and are highly responsive. Combined with the "one-button operation" logic, they greatly reduce the learning cost for users. The red and white dual-color LED indicator and voice prompt function can accurately and multidimensionally inform users of the current working mode, completion status, or fault information, changing the vague prompting method of traditional products that only rely on a single flashing light.

[0068] The main control module, power supply, and motor drive module are integrated with a power factor correction circuit to ensure that the power factor of the cleaning machine is not lower than 0.9 and the standby power consumption of the cleaning machine is not higher than 0.5W.

[0069] Working Principle: Heating Control Steps: The main control module generates a 10kHz PWM signal based on an adaptive PID algorithm, controlling the heating device to reach the set temperature within 3-5 minutes and stabilizing the steam temperature fluctuation within ±1℃ of the set value; Comprehensive safety monitoring steps are executed in parallel with the heating control steps, including: real-time monitoring of the input current; if it exceeds the 10A threshold, the circuit is cut off via an electronic fuse; real-time monitoring of the heating device temperature; if the hardware temperature switch activates at 110℃ or the software detects overheating, heating is immediately stopped; real-time monitoring of the water level; if the water level sensor detects no water, dry-burn protection is immediately triggered, heating is stopped, and an alarm is triggered; upon receiving critical operation commands from the user, a confirmation process to prevent misoperation is initiated; Energy-Saving Operation Steps: After the system enters steady state, the main control module automatically adjusts the power output according to the real-time load; in standby mode, the overall power consumption is controlled to below 0.5W;

[0070] In the comprehensive safety monitoring process, the anti-misoperation confirmation process is as follows: when receiving the instruction to start heating or execute the cleaning program, the user is required to make a secondary confirmation through voice prompts and / or LED flashing. The operation is only executed after receiving the confirmation signal within a predetermined time.

[0071] When the equipment starts up, finishes working, needs water, or malfunctions, it provides status notifications and maintenance reminders to the user through the specific flashing pattern of the red and white dual-color LED array and the specific voice content of the voice prompt unit.

[0072] Example 2:

[0073] See Figure 1-6 The figure shows a steam fabric cleaning machine with intelligent protection design provided by Embodiment 2 of the present invention. This embodiment further improves upon the previous embodiments by making the following technical improvements: The heating control module includes a PWM controller employing an adaptive PID algorithm, with a control frequency of 10kHz. An incremental PID algorithm is used to adjust the boiler's operating time ratio according to the PID output, thereby controlling the temperature; the PWM regulates the water pump output, controlling the water flow rate according to different modes. This shortens the heating time to 3-5 minutes, increases efficiency by 60%, and provides constant temperature control: the steam temperature is stable within ±1℃ of the set value, ensuring consistent cleaning results; energy-saving design: intelligent power adjustment reduces energy consumption by more than 30%.

[0074] Example 3:

[0075] See Figure 1-6The figure shows a steam fabric cleaning machine with intelligent protection design provided by Embodiment 3 of the present invention. This embodiment further improves upon the previous embodiments by making the following technical improvements: The overcurrent protection unit uses a reusable electronic fuse with a protection threshold of 10A. By rapidly detecting the current and comparing it with the preset threshold of 10A, it directly controls the turn-off of solid-state switching devices such as MOSFETs. Its response speed can reach the microsecond level, which is tens or even hundreds of times faster than traditional fuses. This proactive protection can greatly suppress current surges and effectively protect core components. After eliminating overcurrent faults, for example, by removing foreign objects that cause motor jamming, the system can usually be reset through automatic recovery or manual restart without replacing any parts. This achieves "zero spare parts cost" maintenance; it can be tightly integrated with the main control module (MCU) to achieve intelligence, resulting in a systematic upgrade of the entire electrical control system in terms of intelligence, reliability, and user experience.

[0076] Example 4:

[0077] See Figure 1-6 The figure shows a steam fabric cleaning machine with intelligent protection design provided by Embodiment 4 of the present invention. This embodiment further improves upon the above embodiments by making the following technical improvements: The overheat protection unit includes a hardware temperature switch and a software monitoring circuit connected in series, with a protection temperature of 110°C. The cleaning machine's electrical control is protected by a combination of hardware protection (such as a mechanical temperature switch and an electronic fuse) and software monitoring. Even if the main control chip (software) crashes, the hardware protection can still act as a last line of defense to independently cut off the circuit; conversely, the software can provide more flexible and earlier warnings and interventions. This redundant design minimizes safety risks.

[0078] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A steam fabric cleaning machine with intelligent protection design, characterized in that... ,include: Main control module; A heating control module, which is electrically connected to the main control module, is used to receive control signals from the main control module to drive the heating module to work; A motor drive module, which is electrically connected to the main control module, is used to receive control signals from the main control module to drive the motor drive module to work. A power management module, which provides operating power to the cleaning machine; A multi-safety protection module is electrically connected to the main control module and is used to monitor the working status of the cleaning machine in real time and send a signal to the main control module to trigger protection actions when there is an abnormality. The multiple security protection modules include: Overcurrent protection unit, used to detect input current; The overheat protection unit is used to detect the heating temperature; A water level protection unit is installed in the water storage device to detect the water level status; A misoperation prevention module is used to perform multiple confirmations on critical operation commands; The human-machine interaction module is electrically connected to the main control module and is used to receive user commands and display the working status of the cleaning machine.

2. A steam fabric cleaning machine with intelligent protection design according to claim 1, characterized in that... The heating control module includes a PWM controller employing an adaptive PID algorithm, and the control frequency of the PWM controller is 10kHz.

3. A steam fabric cleaning machine with intelligent protection design according to claim 1, characterized in that... The overcurrent protection unit uses a reusable electronic fuse, and the protection threshold of the electronic fuse is 10A.

4. A steam fabric cleaning machine with intelligent protection design according to claim 1, characterized in that... The overheat protection unit includes a hardware temperature switch and a software monitoring circuit connected in series, and the protection temperature is 110℃.

5. A steam fabric cleaning machine with intelligent protection design according to claim 1, characterized in that... The water level protection unit is a high-precision water level sensor.

6. A steam fabric cleaning machine with intelligent protection design according to claim 1, characterized in that... The human-computer interaction module includes capacitive touch buttons, dual-color LED status indicators, and a voice prompt module; the voice prompt module is used to provide voice feedback when the device starts up, completes its work, or malfunctions.

7. A steam fabric cleaning machine with intelligent protection design according to claim 1, characterized in that... The main control module is also connected to a wireless communication module, which is a 433MHz wireless receiver module used to receive control commands issued by a remote controller.

8. A steam fabric cleaning machine with intelligent protection design according to claim 1, characterized in that... The main control module, power supply, and motor drive module are integrated with a power factor correction circuit to ensure that the power factor of the cleaning machine is not lower than 0.9 and the standby power consumption of the cleaning machine is not higher than 0.5W.

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