Power supply system of cleaning equipment and cleaning system

Abstract

The utility model provides a power supply system of cleaning equipment and a cleaning system, which relate to the technical field of cleaning equipment and comprise a constant-voltage constant-current module, a feedback module, a transformer module and a gallium nitride module, the constant-voltage constant-current module is electrically connected with a battery device on the cleaning equipment; the signal input end of the feedback module is in communication connection with the constant-voltage constant-current module; the signal output end of the feedback module is in communication connection with the signal input end of the gallium nitride module; through cooperative work of the above modules, the power supply system can realize efficient electric energy management, effectively improve the conversion rate of electric energy and reduce energy loss, and the modular design enables the power supply system to be easier to maintain and upgrade. And due to the application of the gallium nitride module, the circuit design is further simplified, the integration degree of the power supply system is improved, and the size and the weight are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning equipment technical field especially, it relates to a power system and cleaning system of cleaning equipment. BACKGROUND

[0002] When the cleaning equipment is charging or self-cleaning on the cleaning base station, the cleaning base station will convert the mains into direct current so that the cleaning base station can power any device, however, when the cleaning equipment is in the drying mode, if the direct current is used to power the high-power driven devices such as the drying device and the blowing device, it needs to be realized based on the additional components, thereby leading to the increase of cost.

[0003] In the related art, the alternating current flowing from the plug of the cleaning base station can be converted into direct current, and the converted direct current can be used to power the first target device unit including the first target component on the cleaning base station and the second target component of the cleaning equipment connected with the cleaning base station through the direct current branch.

[0004] The above-mentioned method realizes the conversion and distribution of alternating current (AC) and direct current (DC), but the structure of the direct current branch and the alternating current branch is added in the cleaning base station, which increases the complexity of the circuit design, leads to low integration degree, and the existing cleaning equipment, such as the scrubber, usually relies on the traditional silicon-based power management chip to convert and manage the electric energy, and the traditional silicon-based power management chip is easy to cause high energy loss when converting the alternating current into the direct current, and the electric energy conversion rate is also low. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of power system and cleaning system of cleaning equipment, by in power system, design the combination use of gallium nitride module and constant voltage constant current module, can effectively improve the conversion rate of electric energy, save electric energy, and since electric energy conversion rate is high, the heat generated in conversion is small, then can avoid setting heat sink component, to further save the occupied volume of circuit board.

[0006] In the first aspect, the utility model provides a kind of power system of cleaning equipment, including constant voltage constant current module, feedback module, transformer module and gallium nitride module;

[0007] Constant voltage constant current module is electrically connected with battery device on cleaning equipment;

[0008] The signal input end of feedback module is in communication connection with constant voltage constant current module;

[0009] The signal output end of feedback module is in communication connection with the signal input end of gallium nitride module;

[0010] The signal output end of the gallium nitride module is in communication connection with the transformer module.

[0011] In the utility model, through setting gallium nitride module in power supply system, and based on the setting relation between gallium nitride module and transformer module and feedback module and constant voltage constant current module, can effectively improve the energy conversion efficiency of power supply system, reduced energy loss;And can improve the energy conversion efficiency of power supply system under the premise of guaranteeing the stable power supply of power supply system.

[0012] Further, the gallium nitride module and constant voltage constant current module etc. set in the power supply system can adapt to different working requirements, improve the overall performance of the power supply system;And the power supply system adopts modular design, so that each module focuses on specific function, simplifies the circuit design, is convenient for maintenance and upgrading, therefore, due to the high power density of gallium nitride device and modular design, the integration degree of the whole system is high, and the volume and weight are reduced, and the conversion rate of electric energy is also improved, and the electric energy is saved.

[0013] Optionally, the constant voltage constant current module comprises an operational amplifier constant voltage ring and an operational amplifier constant current ring;The inverting input end of the operational amplifier constant current ring is in communication connection with the output end of the battery device;The noninverting input end of the operational amplifier constant current ring is in communication connection with the noninverting input end of the operational amplifier constant voltage ring, the output end of the operational amplifier constant current ring is in communication connection with the inverting input end of the operational amplifier constant current ring, and the output end of the operational amplifier constant current ring is also in communication connection with the feedback module, for adjusting the output current of the feedback module;

[0014] The inverting input end of the operational amplifier constant voltage ring is in communication connection with the output end of the power supply system, the output end of the operational amplifier constant voltage ring is in communication connection with the inverting input end of the operational amplifier constant voltage ring, and the output end of the operational amplifier constant voltage ring is also in communication connection with the feedback module, for adjusting the output voltage of the feedback module after the load current at both ends of the power supply system is constant.

[0015] In the utility model, the design of the constant voltage and constant current module allows dynamic adjustment of voltage and current according to changes in load, and this flexibility ensures that the power supply system can provide appropriate power supply under various working conditions to meet different load requirements, and since the constant voltage and constant current module includes an operational amplifier constant voltage ring and an operational amplifier constant current ring, through the negative feedback mechanism of the operational amplifier, the constant voltage and constant current module can realize accurate voltage and current control, and through the negative feedback loop of the operational amplifier, the output is continuously adjusted to offset errors, which can also ensure the stability of the output of the power supply system, and in particular, through constant voltage and constant current control, the power supply system can maintain efficient energy management under different load conditions, reducing energy loss, and the negative feedback loop plays a stabilizing role in the circuit, therefore, through the use of the negative feedback loop, fluctuations caused by load changes or other external factors can be reduced, thereby improving the stability of the power supply system, and by integrating the operational amplifier constant voltage ring and the operational amplifier constant current ring in one module, not only is the circuit design simplified, the number of components required and the space are reduced, but also the design complexity and manufacturing cost are reduced.

[0016] Optionally, the gallium nitride module includes a gallium nitride chip; the gallium nitride chip includes a controller and a switching circuit;

[0017] The input end of the switching circuit is in communication connection with the feedback module, and the output end of the switching circuit is in communication connection with the transformer module, for controlling the turn-on and turn-off of the transformer module based on the feedback signal of the feedback module;

[0018] The controller is in communication connection with the input end of the transformer module, for receiving the voltage value of the input end of the transformer module, and controlling the gallium nitride chip to switch between the continuous conduction mode and the quasi-resonant mode according to the voltage value of the input end of the transformer module.

[0019] In this way, the controller can dynamically adjust the working mode according to the load condition by switching between the continuous conduction mode and the quasi-resonant mode, thereby adapting to different load conditions and efficiency requirements, and the switching circuit realizes accurate control of the transformer module through the feedback signal, ensuring the stability of the output voltage and current, and this accurate control and stable output reduces fluctuations in voltage and current, improves the reliability and performance of the power supply system, and integrating the controller and the switching circuit in the gallium nitride chip enables the gallium nitride chip to have high switching speed and low conduction loss, so that the power supply system can convert electrical energy more efficiently, reducing heat generation and energy loss, thereby realizing efficient and flexible control of the power supply system, and the high power density of the gallium nitride chip allows smaller component sizes, which helps to reduce the volume and weight of the entire power supply system, therefore, through the above integrated design and the characteristics of the gallium nitride chip, the overall efficiency of the power supply system can be significantly improved.

[0020] Optionally, the feedback module is an optical coupling unit; and the transformer module is a high-frequency transformer.

[0021] The optical coupling unit can realize electrical isolation between the input and the output due to the transmission of the optical signal, which can protect the low-voltage circuit from the high-voltage circuit, thereby improving the safety and reliability of the power supply system. Since the optical signal is not affected by electromagnetic interference and radio frequency interference, the optical coupling unit can work stably in a complex electromagnetic environment, thereby improving the anti-interference ability of the power supply system. In addition, the optical coupling unit usually has a simple input and output interface, which is easy to integrate into the power supply system, thereby simplifying the design and manufacturing process of the feedback module.

[0022] The high-frequency transformer can work at a high frequency, thereby realizing higher energy conversion efficiency. This is because high-frequency operation reduces core loss and copper loss, thereby reducing energy loss. In addition, since the high-frequency transformer works in a high-frequency range, a smaller magnetic core and winding can be used, thereby reducing the size and weight of the transformer. Moreover, since the high-frequency transformer has fast dynamic response capability, the use of the high-frequency transformer can make the power supply system adapt to load changes more quickly, thereby improving the dynamic performance of the power supply system and enabling the power supply system to stabilize the output quickly when the load changes.

[0023] Optionally, the power supply system further comprises a primary rectification and filtering module and a secondary rectification and filtering module; the output end of the primary rectification and filtering module is electrically connected with the signal input end of the gallium nitride module, for providing direct current for the gallium nitride module;

[0024] The output end of the secondary rectification and filtering module is connected with the gallium nitride module through the feedback module; the input end of the secondary rectification and filtering module is electrically connected with the output end of the transformer module, for converting alternating current into direct current.

[0025] In the utility model, the primary rectification and filtering module converts alternating current into pulsating direct current, which is the first step of power conversion, and ensures that the subsequent circuit can use direct current. Therefore, the primary rectification and filtering module can reduce the pulsating component after rectification, thereby reducing voltage ripple and making the output voltage smoother and more stable. Further, the secondary rectification and filtering module further smoothes the voltage after primary rectification, thereby ensuring that the final output direct voltage has extremely low ripple and noise. Low-ripple and low-noise direct current output helps to improve the performance and reliability of the power supply system. Therefore, through the joint action of the primary rectification and filtering module and the secondary rectification and filtering module, the power supply system can provide high-quality direct current output. Such high-quality output can ensure that the power supply system remains stable under various load conditions.

[0026] Optionally, the power supply system further comprises a heating module; the heating module comprises a first switch module, a second switch module and a heating assembly; the zero line power supply end of the power supply system, the first switch module, the heating assembly, the second switch module and the live line power supply end of the power supply system are sequentially electrically connected.

[0027] Therefore, the first switch module and the second switch module are combined for use, accurate switch control of the heating module is allowed, the switch module can quickly disconnect the current when heating is not needed, unnecessary energy consumption is prevented, the instant-off capability reduces standby power consumption, improves the overall energy efficiency of the power supply system, realizes energy-saving effect, and the risk of long-time power-on of the heating module is reduced through accurate switch control, and the safety of the power supply system is improved.

[0028] Optionally, the first switch module includes a thyristor or a relay module; and the second switch module includes a thyristor or a relay module.

[0029] In this way, the thyristor or the relay module can be selected and used according to specific needs. For example, in the case of fast response and high frequency operation, the thyristor can be selected as the switch module; and in the case of high current processing and electrical isolation, the relay module can be selected as the switch module, or in some critical applications, the thyristor and the relay can be used simultaneously to meet different needs. Therefore, the thyristor or the relay is selected as the switch module, which improves the flexibility and diversity of the heating module design, so that the power supply system can meet the needs of different application occasions, and thus improves the performance and reliability of the entire power supply system.

[0030] Optionally, the heating module further includes a heating wire; and the power supply system further includes a power connector; the power connector directly provides alternating current for the heating assembly and the heating wire.

[0031] Therefore, in the utility model, the heating assembly and the heating wire can be powered directly by using alternating current, which reduces the conversion steps in the circuit, simplifies the power supply system design, and reduces the energy loss in the energy conversion process, thereby improving the overall efficiency of the power supply system.

[0032] Optionally, the power supply system further includes a control module and a DC load device; the output end of the power supply system is electrically connected with the control module and the DC load device respectively, and is used for providing direct current for the control module and the DC load device.

[0033] In this way, by adding the control module and the DC load device in the power supply system, the need for external control circuit is reduced, the power supply system design and subsequent maintenance are simplified, and the power supply system can adapt to different DC load requirements. This flexibility enables the power supply system to support power supply for multiple types of DC devices. By supporting multiple load types, the power supply system can be used in a wider range of application scenarios, thereby increasing the application range of the power supply system.

[0034] Optionally, the power supply system further comprises a DC-DC converter; the DC-DC converter is electrically connected with the control module, and is used to provide the DC power after voltage reduction to the control module.

[0035] Since the DC-DC converter usually has built-in protection functions such as overcurrent protection, overtemperature protection and short-circuit protection, these protection functions can automatically disconnect or adjust the output under abnormal conditions to prevent damage to the device, therefore, by using the DC-DC converter, the safety of the power supply system is further improved, the DC-DC converter can adjust the output voltage of the power supply system to the voltage level required by the control module, ensuring the normal operation of the control module and other load devices, such precise adjustment improves the stability and performance of the power supply system, and by optimizing voltage conversion, the DC-DC converter can improve conversion efficiency, reduce energy loss, reduce operating cost and heat dissipation demand of the power supply system, and by using the DC-DC converter, the use of multiple power supplies with different voltages can also be avoided, simplifying the power supply design, since multiple voltage sources are not required, the wiring of the power supply system is also simplified, thereby reducing design complexity and potential connection problems, and improving the reliability of the power supply system.

[0036] In a second aspect, the utility model provides a kind of cleaning system, and cleaning system includes cleaning equipment and the power supply system as any one in the first aspect.

[0037] Wherein, the efficient design of power supply system ensures that cleaning equipment obtains stable power supply during operation, reduces energy loss, improves overall efficiency, and thereby through efficient power management, energy waste and heat dissipation demand can be reduced, thereby reducing operating costs, especially for long-term use cleaning equipment, operating expenses can be significantly reduced, in the utility model, through the control of constant voltage constant current module and feedback module, power supply system can provide stable voltage and current, this stability ensures that cleaning equipment can reliably operate under various working conditions;By using gallium nitride module and transformer module, not only the energy conversion efficiency of power supply system is improved, energy loss is reduced, but also power supply system miniaturization and lightweight design can be realized, so that it is suitable for portable or space-limited cleaning equipment.

[0038] Therefore, the design of such power supply system allows to adapt to different types of cleaning equipment and load requirements, increases the flexibility of the cleaning system, and the cleaning equipment can realize more complex functions such as intelligent control and automatic operation by integrating advanced power supply system, and by supporting more complex functions and operations, the cleaning equipment can provide better user experience and higher cleaning efficiency.

[0039] It should be noted that the beneficial effects achieved by the feasible implementation modes of the power supply system applied in the cleaning system can be referred to the related description of the first aspect, which will not be described in detail here.

[0040] In summary, the utility model provides a kind of power supply system of cleaning equipment and cleaning system, by introducing the connection between gallium nitride module and other optimization module, to simplify circuit design and improve the degree of integration, other optimization module includes constant voltage constant current module, feedback module and transformer module, wherein, constant voltage constant current module is electrically connected with the battery device of cleaning equipment, for real-time detection voltage signal of battery device, and according to voltage signal switches into constant voltage mode or constant current mode, to ensure that battery device works in safe and efficient voltage range, prevent overcharge or overdischarge, feedback module input and constant voltage constant current module communication connection, to receive voltage signal from constant voltage constant current module, and voltage signal is analyzed and handled, generate appropriate feedback signal, the feedback signal is used to adjust and optimize the working state of transformer module, since the output end of gallium nitride module is connected to transformer module, after feedback module transmits feedback signal to gallium nitride module, the gallium nitride module can adjust the turn-on and turn-off of transformer module according to feedback signal, by controlling the turn-on and turn-off of transformer module, input electric energy can be converted into voltage and current suitable for cleaning equipment, in this way, through the cooperative work of the above module, power supply system realizes efficient electric energy management, and this modular design makes power supply system more easily maintained and upgraded, and the application of gallium nitride module further simplifies circuit design, improves the degree of integration of power supply system, reduces volume and weight. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale. The drawings are:

[0042] Figure 1 The application scenario diagram of the power supply system of the cleaning equipment provided by the utility model;

[0043] Figure 2 The structural schematic diagram of the power supply system of the cleaning equipment provided by the utility model;

[0044] Figure 3 The comparative effect schematic diagram of the power supply system occupying space in printed circuit board provided by the utility model;

[0045] Figure 4 The structural schematic diagram of another power supply system of the cleaning equipment provided by the utility model;

[0046] Figure 5 The structural schematic diagram of the constant voltage constant current module provided by the utility model;

[0047] Figure 6 Another power supply system structure diagram of the cleaning equipment is provided in the utility model;

[0048] Figure 7 The voltage waveform diagram of the modulated gallium nitride chip is provided in the utility model;

[0049] Figure 8 Another power supply system structure diagram of the cleaning equipment is provided in the utility model;

[0050] Figure 9 Part structure diagram of the optional power supply system is provided in the utility model;

[0051] Figure 10 Structure diagram of the heating module is provided in the utility model;

[0052] Figure 11 Structure comparison diagram of the heating module is provided in the utility model;

[0053] Figure 12 The overall structure diagram of the power supply system is provided in the utility model;

[0054] Figure 13 Structure diagram of the power supply system applied to the scrubber is provided in the utility model;

[0055] Figure 14 Flow diagram of the control logic of the scrubber is provided in the utility model.

[0056] The specific embodiments of the utility model have been shown through the above-mentioned drawings, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the utility model concept by any means, but to illustrate the concept of the utility model to the person skilled in the art by referring to specific embodiments.

[0057] Reference signs:

[0058] 100 - cleaning base station, 200 - cleaning equipment, 110 - power supply system, 111 - constant voltage and constant current module, 112 - feedback module, 113 - gallium nitride module, 114 - transformer module, 210 - battery device, 101 - operational amplifier constant voltage ring, 102 - operational amplifier constant current ring, 103 - switch circuit, 104 - controller, 115 - primary rectification filter module, 116 - secondary rectification filter module, 117 - control module, 130 - heating module, 131 - first switch module, 132 - heating assembly, 133 - second switch module. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the utility model will be described clearly and completely in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0060] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0061] The technical scheme of the utility model and how the technical scheme of the utility model solves the above-mentioned technical problems will be described in detail in the following specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The utility model will be described in combination with the drawings.

[0062] The professional terms involved in the utility model will be explained below.

[0063] Rectifier bridge: refers to a circuit configuration, usually composed of four diodes, arranged in a bridge structure, used for full-wave rectification.

[0064] Secondary winding: refers to the process of transferring energy from the primary winding of the transformer to the secondary winding through electromagnetic induction, wherein when the alternating current passes through the primary winding of the transformer, an alternating magnetic field is generated around the winding.

[0065] Schottky diode: a special type of semiconductor diode, using Schottky diode rectification refers to the process of converting alternating current (AC) to direct current (DC).

[0066] Bulk capacitor: refers to a large-capacity capacitor used in power supply circuits, which mainly functions to stabilize voltage, filter and store energy.

[0067] Soft start: refers to the process of gradually increasing the voltage or current to a device to smoothly start it up.

[0068] Primary pulse phase: refers to the phase of applying a switching pulse to the primary winding of a transformer.

[0069] Constant current loop: refers to a feedback control loop in a power supply system that maintains the output current constant by monitoring the output current and comparing it with the set reference current, adjusting the output of the power supply to keep the current constant.

[0070] Constant voltage loop: refers to a feedback control loop in a power supply system that maintains the output voltage constant by monitoring the output voltage and comparing it with the set reference voltage, adjusting the output of the power supply to keep the voltage constant.

[0071] Silicon controlled rectifier (SCR): also known as silicon controlled rectifier (Silicon Controlled Rectifier, SCR), is an important semiconductor device, which is a three-terminal bipolar device with anode (A), cathode (K) and gate (G) three electrodes.

[0072] Continuous conduction mode (CCM): refers to a working mode in power supply circuit (such as switching power supply, etc.), in which the inductor current does not drop to zero throughout the switching period.

[0073] Quasi-resonant (QR) mode: refers to a working mode for switching power converter, aiming to improve efficiency and reduce electromagnetic interference (Electromagnetic Interference, EMI), in which the switching operation of the switching converter is coordinated with the natural frequency of the resonant circuit to switch under certain voltage or current conditions, so as to realize more efficient energy conversion.

[0074] In one possible implementation, the alternating current from the plug-in of the cleaning base station can be converted into direct current, and the converted direct current can be supplied to the first target device unit through the direct current branch, the first target device unit including the first target device on the cleaning base station and the second target device of the cleaning equipment connected with the cleaning base station; at the same time, the alternating current from the plug-in of the cleaning base station can also be directly supplied to the second target device unit on the cleaning base station through the alternating current branch.

[0075] The above mode realizes conversion and distribution of alternating current and direct current, but the structure of adding the direct current branch and the alternating current branch in the cleaning base station increases the complexity of circuit design, and the board material carrying the power supply system is low in integration degree and occupies a large volume.

[0076] It should be further explained that the existing cleaning equipment, such as a floor cleaning machine, usually relies on a traditional silicon-based power management chip to perform power conversion and management. When converting alternating current into direct current, the traditional silicon-based power management chip is prone to cause high energy loss and low power conversion efficiency. Therefore, in order to meet market demand and overcome the limitations of traditional technology, it is necessary to introduce new materials and technologies such as a gallium nitride chip.

[0077] In view of the above problems and considerations, the utility model provides a power supply system of cleaning equipment, through the introduction of the connection between the gallium nitride (GaN) module and other optimization modules, aiming to simplify the circuit design and improve the integration degree, other optimization modules include constant voltage and constant current module, feedback module and transformer module, wherein the constant voltage and constant current module is electrically connected with the battery device of the cleaning equipment, for real-time detection of the voltage signal of the battery device, and switching to constant voltage mode or constant current mode according to the voltage signal, to ensure that the battery device works in a safe and efficient voltage range, prevent overcharging or overdischarging, the feedback module input end is in communication connection with the constant voltage and constant current module, to receive the voltage signal from the constant voltage and constant current module, and analyze and process the voltage signal to generate appropriate feedback signal, the feedback signal is used to adjust and optimize the working state of the transformer module, since the output end of the gallium nitride module is connected to the transformer module, after the feedback module transmits the feedback signal to the gallium nitride module, the gallium nitride module can adjust the conduction and disconnection of the transformer module according to the feedback signal, by controlling the conduction and disconnection of the transformer module, the input power can be converted into voltage and current suitable for the use of the cleaning equipment, in this way, through the cooperative work of the above modules, the power supply system realizes efficient power management, and such modular design makes the power supply system more easy to maintain and upgrade, and the application of the gallium nitride module further simplifies the circuit design, improves the integration degree of the power supply system, and reduces the volume and weight.

[0078] It should be noted that the use of the gallium nitride module in combination with the constant voltage and constant current module and other modules can effectively improve the power conversion efficiency and save power, and since the power conversion efficiency is high, the heat generated during conversion is small, so it is possible to avoid setting a heat sink and other components, thereby saving the occupied volume of the circuit board.

[0079] Exemplarily, Figure 1 The application scenario diagram of the power supply system of the cleaning equipment provided by the utility model is as follows, Figure 1As shown, the application scenario is a scenario in which the cleaning device is charging at the cleaning base station, and the application scenario comprises the cleaning device 200 and the cleaning base station 100, the cleaning base station 100 being connected with the socket, and the socket being connected with the mains to provide 220V alternating current.

[0080] In the process that the cleaning device 200 is located at the cleaning base station 100 to charge, the power supply system provided by the utility model can charge the battery device of the cleaning device 200, and since the power supply system provided by the utility model integrates the constant-voltage constant-current module and the gallium nitride module, the power supply system is improved in the power conversion rate, and the board material carrying the power supply system is high in the degree of integration and small in size, so that the design cost of the cleaning base station 100 is greatly saved.

[0081] It should be noted that the application scenario of the power supply system of the cleaning device provided by the utility model is not specifically limited, and the power supply system can also be applied to the scenario in which the cleaning device 200 and / or the cleaning base station 100 consume electricity.

[0082] Optionally, in the process that the cleaning device 200 is located at the cleaning base station 100 to self-clean, the power supply system provided by the utility model can also provide direct current or alternating current for the cleaning base station 100, such as alternating current for the heating wire, so that the heating wire works, the heating wire generates very high heat, direct current is provided for the fan, and then the heat is blown out through the fan, and the cleaning parts of the cleaning device 200 are dried.

[0083] The cleaning device 200 comprises any cleaning device with a cleaning function, such as a sweeping machine, a mopping machine, a washing machine, a sweeping and mopping machine, and the cleaning parts can be a roller brush assembly, a scraping strip assembly, and the like, and the type of the cleaning device 200 is not specifically limited.

[0084] Based on the above application scenario, the cleaning device 200 can realize stable power consumption, and the specific structure of the power supply system is as shown in Figure 2 , Figure 2 The utility model provides a kind of structure diagram of the power supply system of cleaning device, as shown in Figure 2 The power supply system 110 comprises a constant-voltage constant-current module 111, a feedback module 112, a transformer module 114 and a gallium nitride module 113.

[0085] The constant-voltage constant-current module 111 is electrically connected with the battery device 210 on the cleaning device, for detecting the voltage signal of the battery device 210.

[0086] The signal input end of the feedback module 112 is in communication connection with the constant-voltage constant-current module 111.

[0087] The signal output end of the feedback module 112 is in communication connection with the signal input end of the gallium nitride module 113.

[0088] The signal output end of the gallium nitride module 113 is in communication connection with the transformer module 114, and is used to control the conduction and disconnection of the transformer module 114.

[0089] In the utility model, the constant voltage and constant current module 111 can be switched to a constant voltage mode or a constant current mode according to the detected voltage signal, wherein in the constant voltage mode, the power supply system 110 keeps the output voltage as a constant value, and the output current changes according to the demand of the load, and in the constant current mode, the power supply system 110 keeps the output current as a constant value, and the output voltage changes according to the demand of the load.

[0090] The gallium nitride module 113 has good thermal conductivity, which helps to dissipate heat more effectively, thereby improving the reliability and life of the power supply system 110.

[0091] It should be noted that the gallium nitride module 113 can include a gallium nitride chip, which has a lower on-resistance and a higher switching speed, which makes the power supply system 110 have less loss in the energy conversion process, thereby improving the overall system efficiency, and the gallium nitride chip can work at a higher frequency, which helps to reduce the size of inductors and capacitors, thereby reducing the overall size and weight of the circuit.

[0092] Although the gallium nitride chip itself may be more expensive than traditional silicon devices, due to its high efficiency and high frequency characteristics, the need for other components such as heat sinks, inductors and capacitors can be reduced, thereby reducing the overall system cost.

[0093] Optionally, during the charging of the battery device 210, the constant voltage and constant current module 111 can be switched to the constant current mode first, and then switched to the constant voltage mode after the current of the power supply system 110 is constant, to ensure the constant voltage across the power supply system 110.

[0094] Optionally, in the case that the battery device 210 is fully charged, the constant voltage and constant current module 111 can be switched from the constant voltage mode to the constant current mode.

[0095] It should be noted that in the utility model, for each module in the power supply system 110, the optimal parameters of each module can be adjusted through instrument debugging, simulation, testing, aging, etc. to achieve the ideal performance of the power supply board, which is reflected in higher efficiency than traditional cleaning equipment power supply systems, energy saving (such as high power utilization rate), small printed circuit board (PCB) space occupation (such as small heat sink), reduced design cost (such as factory processing cost), etc.

[0096] Exemplarily, Figure 3 A comparison effect schematic diagram of the space occupied by the power supply system in the printed circuit board is provided in the utility model, as shown in Figure 3As shown in Figure A, this is the power system of a traditional cleaning device, such as... Figure 3 As shown in Figure B, this is the power system of the cleaning equipment provided by this utility model. The filled portion of the line segment in the figure represents the volume occupied by the power system on the PCB. Figure 3 It can be seen that the power supply system provided by this utility model occupies a significantly smaller volume on the PCB.

[0097] Optionally, the feedback module 112 is an optocoupler unit; the transformer module 114 is a high-frequency transformer.

[0098] The optocoupler unit, by transmitting optical signals, can achieve electrical isolation between input and output. This isolation can protect low-voltage circuits from the influence of high-voltage circuits, thereby improving the safety and reliability of the power supply system 110. Since optical signals are not affected by electromagnetic interference and radio frequency interference, the optocoupler unit can work stably in complex electromagnetic environments, thereby improving the anti-interference capability of the power supply system 110. Furthermore, the optocoupler unit usually has simple input and output interfaces, making it easy to integrate into the power supply system 110 and simplifying the design and manufacturing process of the feedback module 112.

[0099] High-frequency transformers achieve higher energy conversion efficiency when operating at high frequencies. This is because high-frequency operation reduces core and copper losses, thereby reducing energy loss. Furthermore, since high-frequency transformers operate in the high-frequency range, smaller magnetic cores and windings can be used, reducing the size and weight of the transformer. Moreover, due to their rapid dynamic response capability, high-frequency transformers enable the power supply system 110 to adapt to load changes more quickly, improving the dynamic performance of the power supply system 110 and enabling it to rapidly stabilize its output when the load changes.

[0100] The high-frequency switching reduces switching losses and generates less heat, which helps improve the thermal efficiency of the power supply system 110 and reduces heat dissipation requirements. As the heat is reduced, the power supply system 110 can operate stably at higher power levels, thus having higher transmission power.

[0101] It should be noted that although the materials for high-frequency transformers may be expensive, their small size and high efficiency can reduce the need for other components, such as heat sinks, thereby reducing the overall system cost.

[0102] In some embodiments, the constant voltage and constant current module 111 can adjust the light emission intensity of the optocoupler unit according to the constant voltage mode or the constant current mode, thereby enabling the gallium nitride module 113 to adjust the conduction or disconnection duration of the transformer module 114 based on the light emission intensity detected by the gallium nitride module 113. When the transformer module 114 is in the conduction state, the transformer module 114 stores electrical energy. When the transformer module 114 is in the disconnection state, the transformer module 114 is used to convert the stored electrical energy into alternating current.

[0103] In the utility model, through setting gallium nitride module 113 in power supply system 110, and based on the setting relation between gallium nitride module 113 and transformer module 114 and feedback module 112 and constant voltage constant current module 111, the energy conversion efficiency of power supply system 110 can be effectively improved, and energy loss is reduced;And the constant voltage constant current module 111 arranged can accurately detect the voltage signal of battery device 210 on cleaning equipment 200, and real-time adjust the constant voltage mode or constant current mode of power supply system 110 based on the detected voltage signal;And constant voltage constant current module 111 can also send the detected voltage signal to feedback module 112, so that feedback module 112 adjusts the display state based on the received voltage signal, and transmits the feedback signal to gallium nitride module 113;Further, gallium nitride module 113 controls the conduction and disconnection of transformer module 114 according to the feedback signal of feedback module 112, to improve the energy conversion efficiency of power supply system 110 under the premise of ensuring the stable power supply of power supply system 110.

[0104] Further, the gallium nitride module and constant voltage constant current module arranged in power supply system 110 can dynamically adjust the output of electric energy according to the state of battery device, to adapt to different working requirements, and improve the overall performance of power supply system 110;And power supply system 110 adopts modular design, so that each module focuses on specific function, simplifies circuit design, and is convenient for maintenance and upgrading, therefore, due to the high power density and modular design of gallium nitride module 113, the integration degree of the whole system is high, and the volume and weight are reduced, and the energy conversion rate is also improved, and energy is saved.

[0105] Optionally, Figure 4 Another structure diagram of the power supply system of the cleaning equipment provided by the utility model is shown as Figure 4 As shown, power supply system 110 includes constant voltage constant current module 111, feedback module 112, transformer module 114 and gallium nitride module 113;The constant voltage constant current module 111 includes op amp constant voltage ring 101 and op amp constant current ring 102;The inverting input end of op amp constant current ring 102 is communicatively connected with the output end of battery device 210;The noninverting input end of op amp constant current ring 102 is communicatively connected with the noninverting input end of op amp constant voltage ring 101, the output end of op amp constant current ring 102 is communicatively connected with the inverting input end of op amp constant current ring 102, and the output end of op amp constant current ring 102 is also communicatively connected with feedback module 112, for adjusting the output current of feedback module 112;

[0106] The inverting input terminal of the operational amplifier constant voltage ring 101 is communicatively connected to the output terminal of the power supply system 110. The output terminal of the operational amplifier constant voltage ring 101 is communicatively connected to the inverting input terminal of the operational amplifier constant voltage ring 101. The output terminal of the operational amplifier constant voltage ring 101 is also communicatively connected to the feedback module 112, which is used to adjust the output voltage of the feedback module 112 after the load current across the power supply system 110 is constant.

[0107] The inverting input of the operational amplifier constant current ring 102 is connected to the output of the battery device 210 to detect the battery current; the non-inverting input of the operational amplifier constant current ring 102 is communicatively connected to the non-inverting input of the operational amplifier constant voltage ring 101 to receive the reference voltage signal; the output of the operational amplifier constant current ring 102 is connected to its inverting input to form a negative feedback loop to ensure stable output current, and the output of the operational amplifier constant current ring 102 is also connected to the feedback module 112 to adjust the output current of the feedback module.

[0108] In this way, the operational amplifier constant current ring 102 can ensure that the current of the battery device 210 remains constant by adjusting the output current.

[0109] The inverting input of the operational amplifier constant voltage ring 101 is connected to the output of the power supply system 110 to detect the output voltage of the power supply system 110. The output of the operational amplifier constant voltage ring 101 is connected to its inverting input to form a negative feedback loop to ensure stable output voltage. The output of the operational amplifier constant voltage ring 101 is also connected to the feedback module 112 to adjust the output voltage of the feedback module 112 after the load current becomes constant.

[0110] In this way, the op-amp constant voltage ring 101 can ensure that the output voltage of the power supply system 110 remains constant by adjusting the output voltage.

[0111] For example, Figure 5 A schematic diagram of a constant voltage and constant current module provided by this utility model is shown below. Figure 5 As shown, the constant voltage and constant current module has a chip (shown in the dashed box). The chip integrates two operational amplifier circuits: a constant voltage loop OP1 and a constant current loop OP2. Only one operational amplifier is working at any given time in the power supply system 110.

[0112] When the voltage signal of the resistance RSS is sent to the inverting input terminal 1 of the operational amplifier constant current loop OP2, the operational amplifier constant current loop OP2 compares the voltage signal of the 1 terminal with the internal reference voltage signal of the 4 terminal. When the voltage signal is greater than the reference voltage signal of the 4 terminal, the operational amplifier constant current loop OP2 starts to work, outputs low level through the 5 terminal to start adjusting the optocoupler unit M1 to control the pulse width modulation (PWM), and at the same time, the output terminal 5 feeds back to the input terminal 1 through the operational amplifier constant current loop OP2, the capacitor C3 and the resistance R5, so as to ensure the constant load current of the VOUT+ and VOUT- terminals, thereby achieving the constant current effect.

[0113] After the load current between the VOUT+ and VOUT- terminals of the power supply system 110 is constant, the voltage signal on the resistance R1 is sent to the inverting input terminal 3 of the operational amplifier constant voltage loop OP1. The VOUT+ and VOUT- terminals are connected with the resistance R2 and the resistance R1. Further, the voltage signal of the 3 terminal is compared with the internal reference voltage signal (2.5V). When the voltage signal is greater than the reference voltage signal (2.5V), the operational amplifier constant voltage loop OP1 starts to work, outputs low level through the 5 terminal, and starts to adjust the optocoupler unit to control the PWM. At the same time, the output terminal 5 feeds back to the input terminal 3 through the operational amplifier constant voltage loop OP1, the resistance R3 and the capacitor C1, so as to ensure the constant voltage of the VOUT+ and VOUT- terminals, thereby achieving the constant voltage effect.

[0114] Optionally, taking the cleaning equipment as the scrubber as an example, considering the battery pack voltage drop and line loss of the scrubber, the entire base of the scrubber is ≤27V, and the single power terminal is ≤27.5V. When the battery pack voltage of the entire scrubber system is ≤25.2V, the charging current is 1.6A±5%. When the battery voltage is greater than 25.2V, the constant current mode can be ended and converted into the constant voltage mode. In the conversion process, the voltage remains unchanged, and the current slowly decreases.

[0115] In the utility model, the design of the constant voltage and constant current module 111 allows dynamic adjustment of voltage and current according to changes in load, and this flexibility ensures that the power supply system 110 can provide appropriate power supply under various working conditions to meet different load requirements, and since the constant voltage and constant current module 111 includes an operational amplifier constant voltage loop and an operational amplifier constant current loop, through the negative feedback mechanism of the operational amplifier, the constant voltage and constant current module 111 can realize accurate voltage and current control, and through the negative feedback loop of the operational amplifier, the output is continuously adjusted to offset errors, which can also ensure the stability of the output of the power supply system 110, and especially through constant voltage and constant current control, the power supply system 110 can maintain efficient energy management under different load conditions and reduce energy loss, the negative feedback loop plays a stabilizing role in the circuit, therefore, through the use of the negative feedback loop, fluctuations caused by load changes or other external factors can be reduced, thereby improving the stability of the power supply system 110, and by integrating the operational amplifier constant voltage loop 101 and the operational amplifier constant current loop 102 in one module, not only is the circuit design simplified, the number of components required and the space are reduced, but also the design complexity and manufacturing cost are reduced.

[0116] Optionally, Figure 6 A structure diagram of a power supply system of another cleaning equipment provided by the utility model is shown in the figure, Figure 6 The power supply system 110 includes a constant voltage and constant current module 111, a feedback module 112, a transformer module 114 and a gallium nitride module 113; the gallium nitride module 113 includes a gallium nitride chip; the gallium nitride chip includes a controller 104 and a switching circuit 103;

[0117] The input end of the switching circuit 103 is in communication connection with the feedback module 112, and the output end of the switching circuit 103 is in communication connection with the transformer module 114, for controlling the conduction and disconnection of the transformer module 114 based on the feedback signal of the feedback module 112;

[0118] The controller 104 is in communication connection with the input end of the transformer module 114, for receiving the voltage value of the input end of the transformer module 114, and controlling the gallium nitride chip to switch between the continuous conduction mode and the quasi-resonant mode according to the voltage value of the input end of the transformer module 114.

[0119] Wherein, the gallium nitride chip has defined the high voltage as 180-264V and the low voltage as 90-130V in advance when it is factory-finished, and then switches to the quasi-resonant mode when the high voltage is detected and switches to the continuous conduction mode when the low voltage is detected, and the trigger condition of the switching depends on whether the transformer module 114 is in a high level state or a low level state.

[0120] Optionally, the switch circuit 103 can be a metal oxide semiconductor (MOS) tube switch circuit, the MOS tube switch circuit is a circuit using a metal oxide semiconductor field effect transistor (MOSFET) as a switching element, the MOSFET can realize conduction or turn-off by controlling the gate voltage in the circuit, thereby controlling the flow of current, the MOSFET can be switched from the on state to the off state in a very short time, suitable for high-frequency applications, and in the on state, the on-resistance of the MOSFET is low, which can effectively reduce the power consumption.

[0121] It should be noted that, under the same working parameters, due to the smaller size of the MOS tube switch circuit relative to other switch tubes, the gallium nitride chip has a very prominent advantage in the application of the scrubber.

[0122] Among them, the gallium nitride chip is a technology that combines a controller with a MOS tube, by sealing them together, and then integrating an oscillation circuit, a driving circuit, a MOS switch circuit, a current feedback circuit, etc., higher power conversion efficiency, smaller size, lower power consumption, lower cost, etc. Advantages.

[0123] The gallium nitride chip has a soft start stage, in which the voltage and time of the gallium nitride chip (Vcs end) can be modulated, for example, Figure 7 The voltage waveform of the gallium nitride chip provided by the utility model is shown in the figure, Figure 7 As shown in the figure, taking the soft start time of 4ms as an example, the Vcs end voltage is initially adjusted to 0.2V and lasts for 1.5ms, and then the voltage rises to 0.3V, 0.4V, 0.5V and 0.6V, and the duration is 0.5ms, 0.5ms, 0.5ms and 1.0ms respectively.

[0124] Among them, due to the influence of the output capacitor, the output voltage will rise very slowly, so the voltage of the gallium nitride chip (FB end) will be very high, therefore, the working frequency of the gallium nitride chip is limited to 1 / 8 of the maximum frequency at the beginning, to avoid working in CCM mode, once the demagnetization signal is detected, the gallium nitride chip will switch to QR mode, and the maximum frequency is limited, then the Vcs end voltage gradually increases, and the gallium nitride chip always works in QR mode. Once the FB end voltage is lower than the expected Vcs end voltage, the soft start stage ends, and then the gallium nitride chip adjusts the working frequency and state according to the load state.

[0125] In this way, the controller 104 can dynamically adjust the operating mode according to the load conditions by switching between the continuous conduction mode and the quasi-resonant mode, thereby adapting to different load conditions and efficiency requirements. The switching circuit 103 realizes precise control of the transformer module 114 through the feedback signal, ensuring the stability of the output voltage and current. This precise control and stable output reduces voltage and current fluctuations, improving the reliability and performance of the power supply system 110. Integrating the controller 104 and the switching circuit 103 in a gallium nitride chip allows the gallium nitride chip to have high switching speed and low conduction loss characteristics, enabling the power supply system 110 to convert electrical energy more efficiently and reduce heat generation and energy loss. This results in efficient and flexible control of the power supply system 110. Additionally, the high power density of the gallium nitride chip allows for smaller component sizes, which helps reduce the overall size and weight of the power supply system 110. Therefore, through the above integrated design and the characteristics of the gallium nitride chip, the overall efficiency of the power supply system 110 can be significantly improved.

[0126] Optionally, Figure 8 Another structure diagram of a power supply system of a cleaning device is provided by the utility model, as shown in Figure 8 The power supply system 110 includes a constant voltage and constant current module 111, a feedback module 112, a transformer module 114, a gallium nitride module 113, a primary rectification and filtering module 115, and a secondary rectification and filtering module 116. The output end of the primary rectification and filtering module 115 is electrically connected to the signal input end of the gallium nitride module 113, which is used to provide direct current for the gallium nitride module 113.

[0127] The output end of the secondary rectification and filtering module 116 is connected to the gallium nitride module 113 through the feedback module 112. The input end of the secondary rectification and filtering module 116 is electrically connected to the output end of the transformer module 114, which is used to convert alternating current into direct current.

[0128] The primary rectification and filtering module 115 is used to provide power for the gallium nitride module 113 and store energy for the transformer module 114 after converting alternating current into direct current. The secondary rectification and filtering module 116 is used to convert alternating current into direct current after storing energy in the transformer module 114, thereby providing power for the battery device 210 and the feedback module 112.

[0129] The primary rectification and filtering module 115 can include rectifier bridges, capacitors, resistors, and other devices. The secondary rectification and filtering module 116 can include Schottky diodes, capacitors, and other devices. The utility model does not specifically limit the types and quantities of devices included in the primary rectification and filtering module 115 and the secondary rectification and filtering module 116. The primary rectification and filtering module 115 can provide direct current for the gallium nitride module 113. The secondary rectification and filtering module 116 can convert alternating current into direct current.

[0130] Exemplary, Figure 9 A partial structure diagram of an optional power supply system provided by the utility model is shown in the figure, which comprises a device A1, a rectifier bridge B1, a capacitor C6, a starting resistor R7, a gallium nitride chip IC, a high-frequency transformer T1, a Schottky diode D1, a capacitor C4, a capacitor C5 and an optocoupler unit M1, etc. Figure 9

[0131] The 220V alternating current is added to the device A1 of the switching power supply through the input line, is rectified by the rectifier bridge B1, is filtered by the high-voltage large capacitor C6 to become 310V direct current, and is further given to the high-frequency transformer T1 to store energy and to the starting resistor R7, and reaches the gallium nitride chip IC to make the gallium nitride chip IC start to work, and the gallium nitride chip IC can output an excitation pulse to drive the switching tube circuit, and the switching tube circuit further drives the high-frequency transformer T1 to oscillate, so that the high-frequency transformer T1 outputs a low-voltage pulse to be coupled to the secondary winding to obtain alternating current, and the alternating current is rectified by the Schottky diode D1 and filtered by the output capacitor C4 to obtain direct current, which can supply power to the battery device 210 and the optocoupler unit M1.

[0132] Optionally, the starting process of the gallium nitride chip comprises: first, the power supply system is powered on, is rectified by the rectifier bridge B1 and is processed by the Bulk capacitor, so that the Bulk capacitor has a voltage, the voltage is charged to the gallium nitride module (Vcc end) through the starting resistor R7, when the voltage charged at the Vcc end reaches the threshold value Vcc_on, the gallium nitride chip attempts to fire three pulses, it should be noted that during the pulse firing stage in the primary side, the voltage on the transformer auxiliary winding is negative, at this time, an electric current flows out from the gallium nitride module (VMS end), the size of the current has a certain relationship with the auxiliary winding voltage, and the approximate calculation is as follows: I_VMS=Vuax / Rup;Vaux=Vbulk / Np*Naux.

[0133] Wherein, I_VMS is the current flowing out from the VMS end, Vaux is the voltage of the transformer auxiliary winding, Rup is the voltage on the VMS end; Vbulk is the voltage on the Bulk capacitor, Np is the number of turns of the primary winding, and Naux is the number of turns of the auxiliary winding.

[0134] Further, whether the gallium nitride chip can be started is judged according to the size of the I_VMS current, if the I_VMS current cannot reach the threshold value IBRW_REF, the gallium nitride chip will not start normally, and if the I_VMS current can reach the threshold value IBRW_REF, the gallium nitride chip can start normally.

[0135] ​In the utility model, the primary rectification filter module 115 converts alternating current into pulsating direct current, this process is the first step of power conversion, ensures that the subsequent circuit can use direct current, therefore, the primary rectification filter module 115 can reduce the pulsating component after rectification, and further reduce voltage ripple, make output voltage more smooth and stable, further, the secondary rectification filter module 116 carries out further smoothing treatment to the voltage after primary rectification, ensures that the direct current voltage of final output has very low ripple and noise, and the direct current output of low ripple and noise helps to improve the performance and reliability of the power supply system 110, therefore, through the combined action of the primary rectification filter module 115 and the secondary rectification filter module 116, the power supply system 110 can provide high-quality direct current output, and this high-quality output can ensure that the power supply system 110 remains stable under various load conditions.

[0136] Optionally, Figure 10 The utility model provides a kind of structure schematic diagram of heating module, as Figure 10 It is shown that the power supply system 110 further includes a heating module 130;The heating module 130 includes a first switch module 131, a second switch module 133 and a heating component 132;The zero line power supply end of the power supply system 110, the first switch module 131, the heating component 132, the second switch module 133 and the fire line power supply end of the power supply system 110 are sequentially electrically connected.

[0137] Among them, the heating component 132 is a positive temperature coefficient (Positive Temperature Coefficien, PTC) thermistor, which can convert electrical energy into heat energy for heating a specific resistor or maintaining the temperature of the system.

[0138] The first switch module 131 is connected between the zero line power supply end of the power supply system 110 and the heating component 132, for controlling the current flowing into the heating component 132;The second switch module 133 is connected between the heating component 132 and the fire line power supply end of the power supply system 110, for further controlling the current flowing out, to ensure that the heating component 132 can be safely powered off when needed.

[0139] Optionally, the first switch module 131 includes a thyristor or a relay module;The second switch module 133 includes a thyristor or a relay module.

[0140] Among them, the thyristor can quickly respond to control signal, realize accurate current control, and the thyristor is a solid-state device without mechanical components, so it has a long service life and high reliability, and the thyristor can work at high frequency, especially suitable for applications requiring fast switching.

[0141] Relay modules provide excellent electrical isolation, effectively isolating control circuits from load circuits and improving the safety of the power system 110. Relays are also easy to control, requiring only a simple voltage signal to achieve switching operation. Furthermore, relay modules can handle high current and voltage, making them suitable for applications requiring high-power switching.

[0142] It should be noted that due to their solid-state characteristics, thyristors are typically smaller than relays, making them suitable for space-constrained applications.

[0143] In this way, either a thyristor or a relay module can be selected based on specific needs. For example, in applications requiring fast response and high-frequency operation, a thyristor can be chosen as the switching module; while in applications requiring high current handling and electrical isolation, a relay module can be chosen as the switching module. Alternatively, in some critical applications, both thyristors and relays can be used simultaneously to meet different requirements. Therefore, selecting either a thyristor or a relay as the switching module improves the flexibility and versatility of the heating module 130 design, enabling the power system 110 to meet the needs of different applications, thereby improving the overall performance and reliability of the power system 110.

[0144] For example, Figure 11 A structural comparison diagram of a heating module provided by this utility model, such as... Figure 11 As shown in Figure A, the structure of an existing heating module is as follows: the neutral power supply terminal, heating component 132, switch module, and live power supply terminal are connected in sequence. At this time, AC high voltage can connect the heating component 132. Although the above structure does not form a circuit with the live power supply terminal when the switch module is disconnected, it still induces a voltage to the ground, posing a certain safety hazard. The heating module provided by this utility model has a different structure. Figure 11 As shown in Figure B, the neutral power supply terminal, the first switch module 131, the heating component 132, the second switch module 133, and the live power supply terminal are connected in sequence. In this way, when the first switch module 131 and the second switch module 133 are disconnected, the high voltage at both ends of the heating component 132 can be cut off, preventing the high voltage from connecting to the heating component 132 and improving the safety of the power system of the cleaning equipment during use.

[0145] Therefore, by combining the first switch module 131 and the second switch module 133, this utility model allows for precise switching control of the heating module 130. When heating is not required, the switch module can quickly disconnect the current to prevent unnecessary energy consumption. This instant disconnection capability reduces standby power consumption, improves the overall energy efficiency of the power system 110, achieves energy saving, and reduces the risk of the heating module 130 being powered on for a long time through precise switching control, thereby reducing related safety hazards and improving the safety of the power system 110.

[0146] Optionally, the heating module 130 further comprises a heating wire; the power supply system 110 further comprises a power connector; the power connector directly provides alternating current for the heating assembly 132 and the heating wire (not shown in the figure).

[0147] The power connector is connected to the alternating current power input end of the power supply system 110, ensuring that the heating module 130 can obtain stable power supply, and the power connector directly obtains alternating current from the power supply system 110 and distributes it to the heating assembly 132 and the heating wire.

[0148] The heating wire is a special resistance wire used for direct heating application, which generates heat by passing current through the heating wire.

[0149] It can be understood that the power connector directly provides alternating current for the heating assembly 132 and the heating wire, simplifying the circuit design and reducing the need for additional rectification and filtering circuit.

[0150] Therefore, in the utility model, the heating assembly 132 and the heating wire can be powered by directly using alternating current, reducing the conversion steps in the circuit, simplifying the design of the power supply system 110, and directly powering reduces the loss in the energy conversion process, improving the overall efficiency of the power supply system 110.

[0151] Optionally, Figure 12 The overall structure diagram of the power supply system provided by the utility model is shown in Figure 12 The power supply system 110 comprises a constant voltage and constant current module 111, a feedback module 112, a transformer module 114, a gallium nitride module 113, a primary rectification and filtering module 115, a secondary rectification and filtering module 116, a control module 117, a heating module 130 and a direct current load device (not shown in the figure); the output end of the power supply system 110 is electrically connected with the control module 117 and the direct current load device respectively, for providing direct current for the control module 117 and the direct current load device.

[0152] The direct current load device can be a microcontroller (Microcontroller Unit, MCU), a single bus, a fan, a silicon controlled rectifier, a relay module, an optical coupling unit, etc., and the type and quantity of the direct current load device are not specifically limited in the utility model.

[0153] The control module 117 can comprise a single bus control module, a fan control module, a temperature control module, etc., and the heating module 130 can comprise a heating device used in a drying module and a self-cleaning module, etc., and the type and quantity of the devices or modules that the control module 117 and the heating module 130 can comprise are not specifically limited in the utility model, which are only examples.

[0154] In this way, by adding the control module 117 and the DC load device in the power supply system 110, the need for an external control circuit is reduced, the design and subsequent maintenance of the power supply system 110 are simplified, and the power supply system 110 can adapt to different DC load requirements, which makes the power supply system 110 able to support the power supply for multiple types of DC devices, by supporting multiple load types, the power supply system 110 can be used in a wider range of application scenarios, thereby increasing the application range of the power supply system 110.

[0155] Optionally, the power supply system 110 further comprises a DC-DC converter; the DC-DC converter is electrically connected with the control module 117, and is used to provide the DC power after voltage reduction to the control module 117.

[0156] Among them, the power supply system 110 can output DC power, one output is used to supply power to the DC load device and the fan, and the other output is used to supply power to the DC-DC device for voltage reduction, so as to output the DC power after voltage reduction, such as reducing the voltage of the DC power to 5V, and then supplying power to the MCU, the single bus, the optocoupler unit, the thyristor, the relay module, and the temperature control module based on the 5V DC power.

[0157] It can be understood that the DC-DC converter is connected between the output end of the power supply system 110 and the control module, so as to ensure that the control module 117 obtains appropriate voltage supply, so that the control module 117 can work stably within its rated voltage range through the DC power after voltage reduction provided by the DC-DC converter.

[0158] Exemplarily, Figure 13 The power supply system applied to the scrubber provided by the utility model has the advantages that the power supply system is provided with the EMC circuit, the primary rectification and filtering module, the high-frequency transformer, the secondary rectification and filtering module, the DC-DC converter, the fan, the MCU, the optocoupler unit, the thyristor, the temperature control module, and the signal interface, and the power supply system is connected with the main machine of the scrubber through the signal interface, so that the main machine of the scrubber can send signals to the power supply system through the signal interface, the signals are switched through the single bus communication module, and the signals are transmitted to the MCU, and then the MCU analyzes the signal commands according to the communication protocol to execute corresponding functions. Figure 13

[0159] Among them, the power supply system 110 can output DC power, one output is used to supply power to the DC load device and the fan, and the other output is used to supply power to the DC-DC device for voltage reduction, so as to output the DC power after voltage reduction, such as reducing the voltage of the DC power to 5V, and then supplying power to the MCU, the single bus, the optocoupler unit, the thyristor, the relay module, and the temperature control module based on the 5V DC power.

[0160] ​The MCU sends signals to the thyristor through the optical coupling unit, and after the heating wire receives the alternating current, the heating wire works, and the heating wire generates high heat, which is blown out by the fan to dry the roller brush assembly of the scrubber; correspondingly, the MCU sends signals to the relay module through the optical coupling unit, and after the PTC thermistor receives the alternating current, the PTC thermistor works, and the PTC thermistor surface generates high heat to heat the water used for cleaning the roller brush assembly to clean the dirt of the roller brush assembly.

[0161] The MCU can also collect temperature feedback signals in real time to adjust the power of the heating wire in the scrubber, so as to maintain the constant drying temperature of the roller brush assembly.

[0162] Since the DC-DC converter usually has built-in protection functions such as overcurrent protection, overtemperature protection, and short-circuit protection, these protection functions can automatically disconnect or adjust the output under abnormal conditions to prevent damage to the device, therefore, by using the DC-DC converter, the safety of the power supply system 110 is further improved, which can adjust the output voltage of the power supply system 110 to the voltage level required by the control module 117, ensuring the normal work of the control module 117 and other load devices, such precise adjustment improves the stability and performance of the power supply system 110, and by optimizing voltage conversion, the DC-DC converter can improve conversion efficiency, reduce energy loss, reduce operation cost and heat dissipation demand of the power supply system 110, and by using the DC-DC converter, the use of multiple power supplies with different voltages can also be avoided, simplifying the power supply design, since multiple voltage sources are not required, the wiring of the power supply system 110 is also simplified, thereby reducing design complexity and potential connection problems, and improving the reliability of the power supply system 110.

[0163] In combination with the above embodiments, Figure 14 A flowchart of the control logic of the scrubber is provided, for example, the power supply system provided by the utility model is applied, as shown in the figure, the control logic of the scrubber comprises the following flow: Figure 14

[0164] The scrubber receives a control command, if the control command indicates to start the self-cleaning mode, the PTC thermistor works to heat the liquid in the cleaning cavity to clean the dirt of the roller brush assembly; if the control command indicates to start the drying mode, the heating wire and the fan work, and the heat of the heating wire is blown out by the fan to dry the roller brush assembly of the scrubber; if the control command indicates to start the charging mode, the external device is closed to charge the battery device by the power supply system; if the control command indicates to start the low-power consumption mode, the MCU is controlled to be in a low-power consumption state.

[0165] ​It should be noted that the power supply system integrated with the gallium nitride module can achieve ultra-low power consumption, such as less than 0.2W.

[0166] Optionally, the utility model provides a kind of cleaning system, and cleaning system includes cleaning equipment and power supply system 110 as described in any of the above embodiments.

[0167] In the utility model, cleaning system combines cleaning equipment 200 and the power supply system 110 described above, and the integrated design can provide stable and efficient power support for cleaning equipment 200, so as to improve the overall performance of cleaning system.

[0168] Wherein, the efficient design of power supply system 110 ensures that cleaning equipment 200 obtains stable power supply during operation, reduces energy loss, improves overall efficiency, and further reduces energy waste and heat dissipation demand through efficient power management, thereby reducing operating costs, especially for long-term use cleaning equipment 200, can significantly reduce operating expenses, in the utility model, through the control of constant voltage constant current module 111 and feedback module 112, power supply system 110 can provide stable voltage and current, and the stability ensures that cleaning equipment 200 can reliably operate under various working conditions;By using gallium nitride module 113 and transformer module 114, not only the energy conversion efficiency of power supply system 110 is improved, energy loss is reduced, but also power supply system 110 miniaturization and lightweight design can be realized, so that it is suitable for portable or space-limited cleaning equipment.

[0169] Therefore, the design of such power supply system 110 allows to adapt to different types of cleaning equipment 200 and load requirements, increases the flexibility of cleaning system, and the cleaning equipment 200 can realize more complex functions, such as intelligent control, automation operation, etc., by integrating advanced power supply system 110, and by supporting more complex functions and operations, cleaning equipment 200 can provide better user experience and higher cleaning efficiency.

[0170] It should be noted that the specific implementation principle and effect of power supply system applied in cleaning system can refer to the related description and effect of the above embodiments, and will not be described in detail here.

[0171] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without deviating from the principles of the present application, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical solutions after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A power supply system for a cleaning apparatus, characterized by, The constant-voltage constant-current module, the feedback module, the transformer module and the gallium nitride module are included. The constant-voltage constant-current module is electrically connected with a battery device on the cleaning equipment. The signal input end of the feedback module is in communication connection with the constant-voltage constant-current module. The signal output end of the feedback module is in communication connection with the signal input end of the gallium nitride module. The signal output end of the gallium nitride module is in communication connection with the transformer module.

2. The power supply system according to claim 1, characterized by The constant-voltage constant-current module includes an operational amplifier constant-voltage ring and an operational amplifier constant-current ring; the inverting input end of the operational amplifier constant-current ring is in communication connection with the output end of the battery device; the non-inverting input end of the operational amplifier constant-current ring is in communication connection with the non-inverting input end of the operational amplifier constant-voltage ring; the output end of the operational amplifier constant-current ring is in communication connection with the inverting input end of the operational amplifier constant-current ring; and the output end of the operational amplifier constant-current ring is also in communication connection with the feedback module, for adjusting the output current of the feedback module. The non-inverting input end of the operational amplifier constant-voltage ring is in communication connection with the output end of the power supply system; the output end of the operational amplifier constant-voltage ring is in communication connection with the non-inverting input end of the operational amplifier constant-voltage ring; and the output end of the operational amplifier constant-voltage ring is also in communication connection with the feedback module, for adjusting the output voltage of the feedback module after the load current between the power supply system is constant.

3. The power supply system of claim 1, wherein The gallium nitride module includes a gallium nitride chip; the gallium nitride chip includes a controller and a switching circuit. The input end of the switching circuit is in communication connection with the feedback module; the output end of the switching circuit is in communication connection with the transformer module, for controlling the on and off of the transformer module based on the feedback signal of the feedback module; The controller is in communication connection with the input end of the transformer module, for receiving the voltage value of the input end of the transformer module, and controlling the gallium nitride chip to switch between the continuous conduction mode and the quasi-resonant mode according to the voltage value of the input end of the transformer module.

4. The power supply system of claim 1, wherein The feedback module is an optical coupling unit; and the transformer module is a high-frequency transformer.

5. The power supply system of claim 1, wherein The power supply system further includes a primary rectification filtering module and a secondary rectification filtering module; the output end of the primary rectification filtering module is electrically connected with the signal input end of the gallium nitride module, for providing direct current for the gallium nitride module; The output end of the secondary rectification filtering module is connected with the gallium nitride module through the feedback module; and the input end of the secondary rectification filtering module is electrically connected with the output end of the transformer module, for converting alternating current into direct current.

6. The power supply system of claim 1, wherein The power supply system further includes a heating module; the heating module includes a first switch module, a second switch module and a heating assembly; the zero line power supply end of the power supply system, the first switch module, the heating assembly, the second switch module and the live wire power supply end of the power supply system are electrically connected in sequence.

7. The power supply system of claim 6, wherein The first switch module includes a thyristor or a relay module; and the second switch module includes a thyristor or a relay module.

8. The power supply system of claim 6, wherein The heating module further includes a heating wire; the power supply system further includes a power supply connector; and the power supply connector directly provides alternating current for the heating assembly and the heating wire.

9. The power supply system of claim 1, wherein, The power supply system further comprises a control module and a DC load device; an output end of the power supply system is electrically connected with the control module and the DC load device respectively, for providing DC power for the control module and the DC load device.

10. The power supply system of claim 9, wherein The power supply system further comprises a DC-DC converter; the DC-DC converter is electrically connected with the control module, for providing the control module with the DC power after voltage reduction.

11. A cleaning system characterized by, The cleaning system comprises a cleaning device and the power supply system according to any one of claims 1-10.

Images