Bubble device, cleaning machine, adjusting method, electronic equipment and readable storage medium

Abstract

The invention discloses a bubble device, a cleaning machine, an adjusting method, electronic equipment and a readable storage medium. A main control board of the bubble device determines the power adjustment amount needing to adjust the booster pump according to the current concentration value measured by the concentration detection element and a set target concentration value; and the main control board controls the reducing mechanism to adjust the aperture of the current limiting section and / or controls the pulse output by the pulse adjusting element to adjust the power of the booster pump according to the full power of the booster pump and the condition of the power adjustment amount. The bubble water flow can be adjusted, in the flow changing process, the stability of the bubble concentration is guaranteed, and the cleaning effect of a user is further not affected.

Description

Technical Field

[0001] This invention relates to bubble devices, cleaning machines, conditioning methods, electronic devices, and readable storage media. Background Technology

[0002] Bubble generators are currently used in cleaning machines and other equipment. They typically generate bubbles by employing a venturi element for gas introduction and mixing. For example, the venturi element shown in Chinese Patent Publication CN219397156U can introduce gas for mixing.

[0003] Currently, most common bubble cleaning devices achieve their flow rate by adding a separate, adjustable water branch to the main bubble water circuit. This branch is connected in parallel with the bubble water branch, and the combined flow is referred to as adjustable flow bubble water. In practice, this is achieved simply by adjusting the flow rate of the regular water circuit. The bubble water flow rate is fixed in this method. When a higher flow rate is needed, the adjustable flow rate water from the regular water branch is added to the bubble water circuit, ultimately achieving adjustable flow. However, while this method increases the flow rate of the bubble water, the amount of bubbles decreases with higher flow, affecting the cleaning effect for the user. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the bubble concentration is unstable when adjusting the flow rate of bubble water.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A bubble-generating device includes a water circuit, a venturi element, a booster pump, and a main control board. The main control board includes a pulse adjustment element, and the bubble-generating device further includes a diameter-changing mechanism for adjusting the orifice diameter of the flow-limiting section of the venturi element and a concentration detection element for detecting bubble concentration.

[0007] The main control board determines the amount of power adjustment required for the booster pump based on the current concentration value measured by the concentration detection element and the set target concentration value. The main control board then controls the variable diameter mechanism to adjust the orifice diameter of the flow-limiting section and / or controls the pulse output of the pulse adjustment element to adjust the power of the booster pump based on the full power of the booster pump and the power adjustment amount.

[0008] In this scheme, the flow rate is changed by the orifice diameter of the flow-limiting section, the bubble concentration is adjusted by the pulse regulating element, and the main control board coordinates and controls the flow rate and bubble concentration in a unified manner, thereby achieving a balance between the flow rate and bubble concentration and ensuring that a stable bubble concentration can be obtained under different flow rates.

[0009] Preferably, the main control board controls the variable diameter mechanism to pre-adjust the orifice diameter of the flow-limiting section. Pre-adjustment determines the initial flow rate, thereby allowing for subsequent adjustment timing.

[0010] Preferably, the bubble device further includes a flow detection element for detecting the flow rate in the water path and a flow velocity detection element for detecting the flow rate. The main control board controls the variable diameter mechanism to adjust based on the detected or preset initial flow rate and initial flow velocity. This allows for a more ideal initial flow rate value, thereby further reducing subsequent adjustment time.

[0011] Preferably, the main control board determines the power adjustment amount based on PID calculation of the concentration difference between the current concentration value and the target concentration value, or the main control board obtains the corresponding power adjustment amount based on the concentration difference between the current concentration value and the target concentration value and a preset calculation method or comparison relationship. By controlling power through PID, rapid power control can be achieved, shortening the control speed to reach the target concentration value and improving control accuracy.

[0012] Preferably, the main control board controls the variable diameter mechanism to adjust the orifice diameter of the flow-limiting section when the power adjustment exceeds the full power or is negative; the main control board controls the pulse output of the pulse regulating element when the power adjustment is less than the full power and is positive. This allows for a full-range flow adjustment strategy, ensuring that the flow rate and bubble concentration meet expectations within the full power capability range, and ensuring bubble concentration through flow strain outside the full power capability range. Thus, bubble concentration can be guaranteed under various conditions.

[0013] Preferably, the main control board performs PID calculations on the power adjustment amount to determine the orifice adjustment amount of the current limiting section. Through PID control, rapid control of the diameter-changing mechanism can be achieved, shortening the control speed to reach the target orifice diameter and improving control accuracy.

[0014] Preferably, the main control board controls the variable diameter mechanism to adjust the orifice diameter of the flow-limiting section based on the remaining unadjusted power after the pulse output by the pulse adjustment element. This compensates for the deviation caused by pulse adjustment, resulting in more precise control of the overall bubble concentration.

[0015] Preferably, the main control board determines the number of useful pulses and the number of useless pulses based on the power adjustment amount and the full power. This allows for simple and quick power adjustment, shortening the control cycle and increasing control speed, thereby achieving rapid response and improving the accuracy of bubble concentration control.

[0016] Preferably, after the current concentration value reaches the target concentration value, the main control board controls the variable diameter mechanism to increase the orifice diameter of the flow-limiting section until the current concentration value stably reaches the target concentration value. This allows for better control of concentration and flow rate, satisfying both the requirement of maximizing power and providing the best water output experience.

[0017] Preferably, when the current concentration value stably reaches the target concentration value, the main control board records the target concentration value, the pulse data output by the corresponding pulse regulating element, and the orifice data of the variable diameter mechanism. Upon the next startup with the corresponding target concentration value, the main control board sets the booster pump and the variable diameter mechanism according to the recorded pulse data output by the corresponding pulse regulating element and the orifice data of the variable diameter mechanism. This allows data to be directly recalled under the same flow conditions in subsequent operations, resulting in the fastest water output speed and rapid stabilization.

[0018] Preferably, the pulse adjustment element is a silicon controlled rectifier (SCR) element, and / or the diameter changing mechanism includes a motor and several moving elements driven by the motor.

[0019] A cleaning machine comprising the aforementioned bubble device.

[0020] An adjustment method, the adjustment method comprising:

[0021] Receive start signal;

[0022] Set the pulse adjustment element and the diameter adjustment mechanism according to the data recorded during previous operation, and / or adjust the pulse adjustment element and the diameter adjustment mechanism according to the current situation until the target concentration value is reached;

[0023] The step of adjusting the pulse adjustment element and the diameter changing mechanism according to the current situation until the target concentration value is reached includes:

[0024] The amount of power adjustment required for the booster pump is determined based on the detected current concentration value and the set target concentration value.

[0025] The power of the booster pump is adjusted by regulating the variable diameter mechanism and / or controlling the pulse output of the pulse regulating element based on the full power of the booster pump and the power adjustment amount.

[0026] In this scheme, the flow rate is changed by the orifice diameter of the flow-limiting section, the bubble concentration is adjusted by the pulse regulating element, and the main control board coordinates and controls the flow rate and bubble concentration in a unified manner, thereby achieving a balance between the flow rate and bubble concentration and ensuring that a stable bubble concentration can be obtained under different flow rates.

[0027] Preferably, after obtaining the start signal, the method further includes controlling the variable diameter mechanism to perform pre-adjustment based on the detected or preset initial flow rate and initial flow velocity, or pre-adjusting the variable diameter mechanism based on preset data. Pre-adjustment can determine the initial flow rate, thereby allowing for subsequent adjustment timing.

[0028] Preferably, the step of determining the amount of power adjustment required for the booster pump based on the detected current concentration value and the set target concentration value includes:

[0029] The power adjustment amount is determined by PID calculation based on the concentration difference between the current and target concentration values, or by comparing the concentration difference with a preset calculation method or correlation. PID control of power enables rapid power control, shortens the control time to reach the target concentration value, and improves control accuracy.

[0030] Preferably, the step of adjusting the power of the booster pump by adjusting the variable diameter mechanism and / or controlling the pulse output of the pulse regulating element according to the full power of the booster pump and the power adjustment amount includes:

[0031] When the power adjustment exceeds the full power or is negative, the diameter-changing mechanism is controlled to adjust the orifice diameter of the flow-limiting section. When the power adjustment is less than the full power and is positive, the pulse output of the pulse regulating element is controlled. This allows for a full-range flow adjustment strategy. Within the full power capability range, the flow rate and bubble concentration are ensured to meet expectations. Outside the full power capability range, bubble concentration is ensured through flow strain. This guarantees bubble concentration under various conditions.

[0032] Preferably, the step of adjusting the orifice diameter of the flow-limiting section by the control variable diameter mechanism specifically includes:

[0033] The orifice adjustment amount in the current-limiting section is determined by PID calculation of the power adjustment amount. PID control enables rapid control of the variable diameter mechanism, shortening the control speed to reach the target orifice diameter and improving control accuracy.

[0034] Preferably, the step of controlling the pulse output by the pulse adjustment element specifically includes:

[0035] The number of useful pulses and useless pulses are determined based on the power adjustment amount and the full power. This allows for simple and quick power adjustment, shortening the control cycle and increasing control speed, thereby achieving rapid response and improving the accuracy of bubble concentration control.

[0036] Preferably, after the step of controlling the pulse output by the pulse adjustment element, the method further includes:

[0037] The remaining unadjusted power is used to control the orifice diameter of the flow-limiting section by adjusting the variable diameter mechanism. This compensates for deviations caused by pulse adjustment, resulting in more precise control of the overall bubble concentration.

[0038] Preferably, after the step of adjusting the pulse adjustment element and the diameter changing mechanism according to the current situation until the target concentration value is reached, the method further includes:

[0039] Once the current concentration reaches the target concentration, the orifice diameter of the flow-limiting section is increased by controlling the variable diameter mechanism until the current concentration stabilizes at the target concentration. This allows for better control of both concentration and flow rate, achieving both maximum power and optimal water output experience.

[0040] Preferably, after the step of adjusting the orifice diameter of the flow-limiting section by the control diameter adjustment mechanism until the current concentration value stably reaches the target concentration value, the method further includes:

[0041] The system records the target concentration value, the pulse data output by the corresponding pulse regulating element, and the orifice data of the variable diameter mechanism. This allows for direct data retrieval under the same flow rate conditions in subsequent operations, maximizing the water output speed and enabling rapid stabilization.

[0042] An electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor performing the regulation method.

[0043] A readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the regulation method.

[0044] The positive and progressive effects of this invention are as follows: This invention can achieve adjustable bubble water flow rate, and ensures stable bubble concentration during flow rate changes, thus not affecting the user's cleaning effect. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the water circuit structure of the bubble device according to a preferred embodiment of the present invention.

[0046] Figure 2 This is a schematic diagram of the structure of a Venturi element according to a preferred embodiment of the present invention.

[0047] Figure 3 This is a schematic diagram of the overall structure of the variable diameter mechanism according to a preferred embodiment of the present invention.

[0048] Figure 4 This is an exploded view of the variable diameter mechanism in one direction, according to a preferred embodiment of the present invention.

[0049] Figure 5 This is an exploded view of the variable diameter mechanism of a preferred embodiment of the present invention from another direction.

[0050] Figure 6 This is a schematic diagram of the control of the bubble device according to a preferred embodiment of the present invention.

[0051] Figure 7 This is a flowchart of the adjustment method according to a preferred embodiment of the present invention.

[0052] Figure 8 This is a schematic diagram of the control logic of the processor according to a preferred embodiment of the present invention.

[0053] Explanation of reference numerals in the attached figures

[0054] Variable diameter mechanism 100

[0055] Motor 110

[0056] Linkage 120

[0057] Fixed housing 130

[0058] Pin hole 131

[0059] Rotating housing 140

[0060] Limiting groove 141

[0061] Active component 150

[0062] First pin 151

[0063] Second pin 152

[0064] Booster pump 200

[0065] Venturi element 300

[0066] Inlet end 301

[0067] Water outlet 302

[0068] 303 intake end

[0069] Convergence segment 310

[0070] Traffic restriction section 320

[0071] Expansion section 330

[0072] Concentration detection element 400

[0073] Flow detection element 500

[0074] Flow rate detection element 600 Detailed Implementation

[0075] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0076] like Figures 1-6 As shown, this embodiment includes a bubble device, comprising a water circuit, a Venturi element 300, a booster pump 200, and a main control board. The main control board includes a pulse adjustment element. The bubble device also includes a diameter-changing mechanism 100 for adjusting the orifice diameter of the flow-limiting section 320 of the Venturi element 300, and a concentration detection element 400 for detecting bubble concentration. The main control board determines the required power adjustment amount for the booster pump 200 based on the current concentration value measured by the concentration detection element 400 and a set target concentration value. Furthermore, the main control board controls the diameter-changing mechanism 100 to adjust the orifice diameter of the flow-limiting section 320 and / or controls the pulse output of the pulse adjustment element to adjust the power of the booster pump 200 based on the full power of the booster pump 200 and the power adjustment amount.

[0077] In this embodiment, adjusting the orifice diameter of the flow-limiting section 320 includes adjusting the area within the flow-limiting section 320 that allows flow. The diameter-changing mechanism 100 can uniformly change the orifice diameter of the flow-limiting section 320 in all directions (e.g., narrowing the central orifice from a larger circle to a smaller circle), or it can reduce the orifice area in one or more directions. The pulse adjustment element can be a known element capable of adjusting the power of a pulse, such as a silicon controlled rectifier (SCR), thereby controlling the output power of the booster pump. The concentration detection element can be a turbidity sensor, which can be positioned downstream of the venturi element in the water path, or it can be positioned near the outlet.

[0078] In this embodiment, the flow rate is changed by the aperture of the flow limiting section 320, the bubble concentration is adjusted by the pulse regulating element, and the main control board coordinates and controls the flow rate and bubble concentration in a unified manner, thereby achieving a balance between the flow rate and bubble concentration and ensuring that a stable bubble concentration can be obtained under different flow rates.

[0079] like Figures 3-6 As shown, in a preferred embodiment, the variable diameter mechanism 100 may include a motor 110, a connecting rod 120, a fixed housing 130, a rotating housing 140, and movable elements 150. Multiple movable elements 150 are arranged in the form of blades and flow out of the orifice. A first pin 151 of the movable element 150 is rotatably connected to a pin hole 130 in the fixed housing, and a second pin 152 of the movable element 150 slides in a limiting groove 141. The first pin 151 and the second pin 152 are eccentrically positioned relative to each other. When the motor 110 rotates, it drives the connecting rod 120 and causes the rotating housing 140 to rotate relative to each other. The fixed housing 130 is fixed in the flow-limiting section of the venturi element 300. Therefore, the rotating limiting groove 141 applies a circumferential force to the second pin 152, causing the movable element 150 to rotate relative to its first pin 151. The rotation of the movable element 150 changes the size of the orifice formed in the middle, thereby achieving a variable diameter. Of course, in other alternative implementations, known variable diameter structures can also be used.

[0080] In a preferred embodiment, the main control board controls the variable diameter mechanism 100 to pre-adjust the orifice diameter of the flow-limiting section 320. This pre-adjustment determines the initial flow rate, thereby allowing for subsequent adjustment timing.

[0081] In a preferred embodiment, the bubble device further includes a flow detection element 500 for detecting the flow rate in the water path and a flow velocity detection element 600 for detecting the flow rate. The main control board controls the variable diameter mechanism 100 to adjust based on the detected or preset initial flow rate and initial flow velocity. This allows for a more ideal initial flow rate value, thereby further reducing subsequent adjustment time.

[0082] In a preferred embodiment, the main control board determines the power adjustment amount based on PID calculations of the concentration difference between the current and target concentration values, or the main control board obtains the corresponding power adjustment amount based on the concentration difference between the current and target concentration values ​​and a preset calculation method or correlation. By controlling power through PID, rapid power control can be achieved, shortening the control speed to reach the target concentration value and improving control accuracy.

[0083] In a preferred embodiment, the main control board controls the diameter adjustment mechanism 100 to adjust the orifice diameter of the flow-limiting section 320 when the power adjustment exceeds the full power or is negative. Conversely, the main control board controls the pulse output of the pulse adjustment element when the power adjustment is less than the full power and is positive. This enables a full-range flow adjustment strategy, ensuring that the flow rate and bubble concentration meet expectations within the full power range, and ensuring bubble concentration through flow strain outside the full power range. Thus, bubble concentration can be guaranteed under various conditions.

[0084] In a preferred embodiment, the main control board performs PID calculations on the power adjustment amount to determine the orifice adjustment amount of the current limiting section 320. Through PID control, rapid control of the variable diameter mechanism 100 can be achieved, shortening the control speed to reach the target orifice diameter and improving control accuracy.

[0085] In a preferred embodiment, the main control board controls the diameter-changing mechanism 100 to adjust the orifice diameter of the flow-limiting section 320 based on the remaining unadjusted power after the pulse is output by the pulse adjustment element. This compensates for the deviation caused by pulse adjustment, resulting in more precise control of the overall bubble concentration.

[0086] In a preferred embodiment, the main control board determines the number of useful pulses and the number of useless pulses based on the power adjustment amount and the full power. This allows for simple and quick power adjustment, shortening the control cycle and increasing control speed, thereby achieving rapid response and improving the accuracy of bubble concentration control.

[0087] In a preferred embodiment, after the current concentration value reaches the target concentration value, the main control board controls the variable diameter mechanism 100 to increase the orifice diameter of the flow limiting section 320 until the current concentration value stably reaches the target concentration value. This allows for better control of concentration and flow rate, satisfying both the requirement to achieve maximum power and providing the best water output experience.

[0088] In a preferred embodiment, when the current concentration value stably reaches the target concentration value, the main control board records the target concentration value, the pulse data output by the corresponding pulse regulating element, and the orifice data of the variable diameter mechanism 100. Upon the next startup with the corresponding target concentration value, the main control board sets the booster pump 200 and the variable diameter mechanism 100 according to the recorded pulse data output by the corresponding pulse regulating element and the orifice data of the variable diameter mechanism 100. This allows the data to be directly recalled under the same flow conditions in subsequent operations, resulting in the fastest water output speed and rapid stabilization.

[0089] In a preferred embodiment, the pulse adjustment element is a silicon controlled rectifier (SCR). The bubble device of this embodiment can be used in a washing machine or other equipment that requires bubbles.

[0090] like Figure 7 As shown, this embodiment discloses an adjustment method, which includes:

[0091] Step S100: Obtain the start signal;

[0092] Step A: Set the pulse adjustment element and diameter adjustment mechanism according to the data recorded during previous operation, and / or Step B: Adjust the pulse adjustment element and diameter adjustment mechanism according to the current situation until the target concentration value is reached;

[0093] Step B includes:

[0094] Step S200: Determine the amount of power adjustment required for the booster pump based on the detected current concentration value and the set target concentration value;

[0095] Step S300: Adjust the power of the booster pump by adjusting the output pulse of the variable diameter mechanism and / or the control pulse regulating element according to the full power of the booster pump and the power adjustment amount.

[0096] In this embodiment, steps A and B can coexist and be selected selectively during implementation, or only step A can be retained, or only step B can be executed after a certain period of time. For example, before obtaining the initial number of runs for storing data, such as in step S500, only step A can be used. After running a certain number of times and accumulating data, some of the data can be processed using step A, and some can be processed using step B. After all the data has been stored, step B can be used exclusively.

[0097] For example, the pulse regulation element of a thyristor avoids the limitation of only slow switching control while still enabling a certain degree of power regulation. Generally, a fixed number of cycles is used, and the power is adjusted by the number of effective pulses within each cycle. For instance, with an AC frequency of 50Hz, there are two and a half cycles (positive and negative), resulting in 100 waveforms per second. Using 100 pulses per second as a cycle, energizing 50 pulses and de-energizing the other 50 pulses, half the power is regulated within one second.

[0098] In this embodiment, the flow rate is changed by the aperture of the flow-limiting section, the bubble concentration is adjusted by the pulse regulating element, and the main control board coordinates and controls the flow rate and bubble concentration in a unified manner, thereby achieving a balance between the flow rate and bubble concentration and ensuring that a stable bubble concentration can be obtained under different flow rates.

[0099] In a preferred embodiment, step S100 may be followed by step S150: controlling the variable diameter mechanism to perform pre-adjustment based on the detected or preset initial flow rate and initial flow velocity, or pre-adjusting the variable diameter mechanism based on preset data. Pre-adjustment determines the initial flow rate, thereby allowing for subsequent adjustment timing.

[0100] In a preferred embodiment, step S200 includes: determining the power adjustment amount based on PID calculation of the concentration difference between the current concentration value and the target concentration value, or obtaining the corresponding power adjustment amount based on the concentration difference between the current concentration value and the target concentration value and a preset calculation method or comparison relationship. By controlling power through PID, rapid power control can be achieved, shortening the control speed to reach the target concentration value and improving control accuracy.

[0101] In a preferred embodiment, step S300 includes:

[0102] When the power adjustment exceeds the full power or is negative, the diameter-changing mechanism is controlled to adjust the orifice diameter of the flow-limiting section. When the power adjustment is less than the full power and is positive, the pulse output of the pulse regulating element is controlled. This allows for a full-range flow adjustment strategy. Within the full power capability range, the flow rate and bubble concentration are ensured to meet expectations. Outside the full power capability range, bubble concentration is ensured through flow strain. This guarantees bubble concentration under various conditions.

[0103] In a preferred embodiment, the step of controlling the orifice adjustment of the flow-limiting section by the variable diameter mechanism specifically includes: determining the orifice adjustment amount of the flow-limiting section by performing PID calculation on the power adjustment amount. PID control enables rapid control of the variable diameter mechanism, shortening the control speed to reach the target orifice size and improving control accuracy. While power adjustment is achieved through pulse adjustment elements, the control cycle is long. For example, with a 50Hz AC frequency, there are two and a half cycles (positive and negative), resulting in 100 waveforms per second. Using a cycle of 100 pulses per second, energizing 50 pulses and de-energizing 50 pulses takes one second. This long control cycle leads to unstable and fluctuating water bubble effects. If a shorter time, such as 0.5 seconds, is used, there are 50 pulses. Although the time is faster, each pulse corresponds to a larger power. For example, for a 96W booster pump, each pulse corresponds to 96 / 50 = 1.92W, meaning the adjustment granularity is relatively large. By using PID data to discretize the pulse ratio of irregular pulses, rapid power control is achieved, reducing control speed and improving control accuracy.

[0104] In a preferred embodiment, the step of controlling the pulse output by the pulse adjustment element specifically includes:

[0105] The number of useful pulses and useless pulses are determined based on the power adjustment amount and the full power. This allows for simple and quick power adjustment, shortening the control cycle and increasing control speed, thereby achieving rapid response and improving the accuracy of bubble concentration control.

[0106] In a preferred embodiment, after the step of controlling the pulse output by the pulse conditioning element, the method further includes:

[0107] The remaining unadjusted power is used to control the orifice diameter of the flow-limiting section by adjusting the variable diameter mechanism. This compensates for deviations caused by pulse adjustment, resulting in more precise control of the overall bubble concentration.

[0108] In a preferred embodiment, step S400 is included after step S300: controlling the variable diameter mechanism to increase the orifice diameter of the flow-limiting section until the current concentration value stabilizes at the target concentration value. This allows for better control of concentration and flow rate, satisfying both the requirement to achieve maximum power and providing the best effluent experience.

[0109] In a further preferred embodiment, step S400 is followed by step S500: recording the target concentration value, the pulse data output by the corresponding pulse regulating element, and the orifice data of the variable diameter mechanism. Specifically, the data recorded in step S500 will be used in step A. This allows the data to be directly retrieved under the same flow rate conditions in subsequent operations, resulting in the fastest water output speed and rapid stabilization.

[0110] The present invention also discloses an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor performs a regulation method.

[0111] like Figure 8 The diagram illustrates the process of implementing specific logical judgments using the methods and steps described above. The specific sequence can be summarized as follows:

[0112] 1. Detect the current concentration value (which can be detected using a turbidity sensor). ΔN is the difference between the set target concentration value and the current concentration value, i.e., ΔN = Tset (set target concentration value) - N1 (current concentration value). When the intake air volume is not a limiting factor, the bubble concentration can be calculated as N = k*f / Qr (not calculated in control, but determined in the design selection parameters), where k is a coefficient affected by factors such as the number of pump chambers and chamber size, f is the operating frequency of the diaphragm pump (i.e., the number of working cycles completed per minute), r is the radius of the minimum orifice of the Venturi element, and Q is the flow rate. It can be seen that the concentration is directly proportional to the booster pump frequency and inversely proportional to the orifice diameter and flow rate of the Venturi element.

[0113] 2. The flow rate Q is affected by the minimum venturi orifice and the booster pump, so Q = V * πr^2, where V is the flow velocity and r is the radius of the minimum venturi orifice. At the same time, Q = D * f, where D is the displacement of the diaphragm pump (i.e., the amount of liquid pumped per unit time) and f is the operating frequency of the diaphragm pump (i.e., the number of working cycles completed per minute, usually cycles / minute or times / minute).

[0114] 3. Booster pump power P=(Q*H) / η, where Q is flow rate, H is pressure, and η is efficiency.

[0115] 4. When the user turns on the sparkling water, the flow rate requirement is fixed at Q1 (detected by the flow meter, which can be set precisely or fuzzily). The approximate Venturi orifice size can be calculated from Q (flow rate) = V (flow velocity) * πr (minimum orifice size of the Venturi element)^2, and will be gradually adjusted during the concentration control process.

[0116] 5. PID Calculation of Control Power: The PID positional formula is P1 (power value at current concentration) = U(t) = Kp1*e(t) + Ki1*Σe(t) + Kd1*(e(t) - e(t-1)), where e(t) is the current error, e(t) = Tset – N1 (target value - actual value), and e(t-1) is the previous error. Kp1, Ki1, and Kd1 are the system parameters of the PID, which can be set empirically according to the situation. The output data is the power.

[0117] 6. The orifice diameter of the variable-diameter structure is controlled by a motor, which is the Venturi orifice diameter. The input power of the booster pump is controlled by PID calculation. The pulse ratio process is as follows: (where P is the full power data of the booster pump).

[0118] If P1 > P (current bubble concentration is low), then pulse ratio adjustment calculation is not required. The total pulse power is used, and the adjustment is made through the aperture as follows: Step 11.

[0119] If P1 < 0 (current bubble concentration is too high), then pulse ratio adjustment calculation is not required, and all pulses will have no power, thus reducing the power.

[0120] If 0 < P1 < P, then calculate the pulse ratio. The initial default value is 50 pulses. The calculation method is: Puse1 = (50 * P1) / P; where Puse1 is the number of useful pulses, and Puse2 = 50 - Puse1; where Puse2 is the number of pulses not used. After the initial value calculation, a common factor is applied to the values ​​2, 3, 5, and 7 to minimize the values ​​of Puse1 and Puse2 in the same proportion.

[0121] For example: Total power P = 96W, PID calculation shows the used power P1 = 67W; therefore, Pulse1 = 50 * 68 / 96 = 35; and Pulse2 = 50 - 35 = 15. Then, P1 and P2 are simplified by common divisor 5, resulting in Pulse1 = 7 and Pulse2 = 3. The pulse ratio period is now 7 + 3 = 10 cycles, or 0.1 seconds per control cycle. Of these, 7 are useful pulses and 3 are useless pulses. This shortens the control cycle, resulting in faster control speed and improved concentration control accuracy.

[0122] 7. After calculating the pulse ratio, the weekly pulse time is filled by first scheduling one useful pulse, reducing the total number of useful pulses by one, and then immediately scheduling one useless pulse, reducing the total number of useless pulses by one. This maintains a uniform reduction in the total number of pulses, ensuring even power distribution. It avoids situations where useful and useless pulses occur simultaneously, resulting in periods of full power followed by periods of no power, causing concentration fluctuations. Once the number of useful or useless pulses is depleted, the pulse is stopped until all pulses have been counted, at which point the PID power data is re-imported and the pulse ratio is recalculated.

[0123] 8. Since the pulse ratio is always not an integer ratio during calculation, it will inevitably lead to power deviation. For example, in the above example, the actual power is: 96 * 7 / 10 = 67.2W, which is different from the power calculated by PID. Therefore, the power deviation is compensated by fine-tuning the flow rate. The power deviation is △P = 67.2 - 67 = 0.2W; the fine-tuning amount of the Venturi aperture is calculated by the formula △P * η / H = V * π(△r)^2, and the aperture is fine-tuned by the motor.

[0124] 9. By controlling the power through the discretization of the pulse ratio irregularly like this, a fast power control is formed. The remaining power is coordinated with the step-by-step fine-tuning of the aperture, so that the concentration and flow rate are better controlled. After the concentration is stable, confirm again whether the power is the maximum value, that is, meet the requirement of reaching the maximum power to make the best water outlet experience. Once the power is not the maximum, fine-tune the motor to make the aperture slowly become larger, and the concentration detection and the power feedback of PID will inevitably make the power gradually increase. Vice versa.

[0125] 10. Once the maximum power is reached and the concentration is also stable, record the pulse ratio and flow rate data at this time, so that the data can be directly called under the same flow rate condition, making the water outlet speed the fastest and also being able to reach it quickly. The preservation can be in the following form for example: bubble concentration - data pulse ratio data - flow rate.

[0126] 11. Aperture adjustment: The adjustment also uses incremental PID to calculate again, △U(t) = Kp2 * (e(t) - e(t - 1)) + Ki2 * e(t) + Kd2 * (e(t) – 2 * e(t - 1) + e(t - 2)). The basic Kp2 is related to the calculation formula of △P * η / H = V * π(△r)^2, where △P is the deviation power, △r is the aperture adjustment amount, and the calculation data of △r is used as the reference of Kp2, generally 0.3 * △r < Kp2 < 2 * △r, and Ki2 and Kd2 are set according to experience respectively.

[0127] [[ID=1,2]]

[0128] The present invention can achieve the adjustability of the bubble water flow rate, and during the flow rate change process, ensure the stability of the bubble concentration, and further will not affect the cleaning effect of the user.

[0129] Although the specific implementation manners of the present invention are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these implementation manners without departing from the principles and essences of the present invention, but these changes and modifications all fall within the protection scope of the present invention.​

Claims

1. A bubble-generating device, comprising a water circuit, a venturi element, a booster pump, and a main control board, characterized in that, The main control board includes a pulse adjustment element, and the bubble device further includes a diameter adjustment mechanism for adjusting the orifice diameter of the flow-limiting section of the Venturi element and a concentration detection element for detecting the bubble concentration. The main control board determines the amount of power adjustment required for the booster pump based on the current concentration value measured by the concentration detection element and the set target concentration value. The main control board then controls the variable diameter mechanism to adjust the orifice diameter of the flow-limiting section and / or controls the pulse output of the pulse adjustment element to adjust the power of the booster pump based on the full power of the booster pump and the power adjustment amount.

2. The bubble apparatus as described in claim 1, characterized in that, The main control board controls the variable diameter mechanism to pre-adjust the orifice diameter of the flow-limiting section.

3. The bubble apparatus as described in claim 2, characterized in that, The bubble device also includes a flow detection element for detecting the flow rate in the water path and a flow velocity detection element. The main control board controls the variable diameter mechanism to adjust according to the detected or preset initial flow rate and initial flow velocity.

4. The bubble apparatus as described in claim 1, characterized in that, The main control board determines the power adjustment amount based on the PID calculation of the concentration difference between the current concentration value and the target concentration value, or the main control board obtains the corresponding power adjustment amount based on the concentration difference between the current concentration value and the target concentration value and a preset calculation method or comparison relationship.

5. The bubble apparatus as described in claim 1, characterized in that, When the power adjustment exceeds the full power or is negative, the main control board controls the diameter changing mechanism to adjust the aperture of the current limiting section. When the power adjustment is less than the full power and is positive, the main control board controls the pulse output by the pulse adjustment element.

6. The bubble apparatus as described in claim 5, characterized in that, The main control board performs PID calculations on the power adjustment amount to determine the aperture adjustment amount of the current limiting section.

7. The bubble apparatus as described in claim 5, characterized in that, The main control board controls the variable diameter mechanism to adjust the orifice diameter of the flow-limiting section based on the remaining unadjusted power after the pulse is output by the pulse adjustment element.

8. The bubble apparatus as described in claim 5, characterized in that, The main control board determines the number of useful pulses and the number of useless pulses based on the power adjustment amount and the full power.

9. The bubble apparatus as claimed in claim 1, characterized in that, After the current concentration value reaches the target concentration value, the main control board controls the variable diameter mechanism to increase the orifice diameter of the flow-limiting section until the current concentration value stably reaches the target concentration value.

10. The bubble apparatus as claimed in claim 9, characterized in that, When the current concentration value stably reaches the target concentration value, the main control board records the target concentration value, the pulse data output by the corresponding pulse adjustment element, and the orifice data of the variable diameter mechanism. After starting the next time with the corresponding target concentration value, the main control board sets the booster pump and the variable diameter mechanism according to the recorded pulse data output by the corresponding pulse adjustment element and the orifice data of the variable diameter mechanism.

11. The bubble apparatus according to any one of claims 1-10, characterized in that, The pulse adjustment element is a silicon controlled rectifier (SCR) element, and / or the diameter changing mechanism includes a motor and several moving elements driven by the motor.

12. A cleaning machine, characterized in that, It includes the bubble device as described in any one of claims 1-11.

13. An adjustment method, characterized in that, The adjustment method includes: Receive start signal; Set the pulse adjustment element and the diameter adjustment mechanism according to the data recorded during previous operation, and / or adjust the pulse adjustment element and the diameter adjustment mechanism according to the current situation until the target concentration value is reached; The step of adjusting the pulse adjustment element and the diameter changing mechanism according to the current situation until the target concentration value is reached includes: The amount of power adjustment required for the booster pump is determined based on the detected current concentration value and the set target concentration value. The power of the booster pump is adjusted by regulating the variable diameter mechanism and / or controlling the pulse output of the pulse regulating element based on the full power of the booster pump and the power adjustment amount.

14. The adjustment method as described in claim 13, characterized in that, After obtaining the start signal, the method further includes controlling the diameter-changing mechanism to perform pre-adjustment based on the detected or preset initial flow rate and initial flow velocity, or pre-adjusting the diameter-changing mechanism based on preset data.

15. The adjustment method as described in claim 13, characterized in that, The step of determining the required power adjustment amount for the booster pump based on the detected current concentration value and the set target concentration value includes: The power adjustment amount is determined by PID calculation based on the concentration difference between the current concentration value and the target concentration value, or the corresponding power adjustment amount is obtained by comparing the concentration difference between the current concentration value and the target concentration value with a preset calculation method or comparison relationship.

16. The adjustment method as described in claim 13, characterized in that, The step of adjusting the power of the booster pump by adjusting the variable diameter mechanism and / or controlling the pulse output of the pulse regulating element according to the full power of the booster pump and the power adjustment amount includes: When the power adjustment exceeds the full power or is negative, the variable diameter mechanism is controlled to adjust the orifice diameter of the flow limiting section. When the power adjustment is less than the full power and is positive, the pulse output of the pulse adjustment element is controlled.

17. The adjustment method as described in claim 16, characterized in that, The steps of adjusting the orifice diameter of the flow-limiting section by the control variable diameter mechanism specifically include: The orifice adjustment amount in the current-limiting section is determined by performing PID calculations on the power adjustment amount.

18. The adjustment method as described in claim 16, characterized in that, The steps for controlling the pulse output of the pulse adjustment element specifically include: The number of useful pulses and the number of useless pulses are determined based on the power adjustment amount and the full power.

19. The adjustment method as described in claim 16, characterized in that, The step of controlling the pulse output of the pulse adjustment element is followed by: The diameter of the flow-limiting section is adjusted by controlling the variable diameter mechanism based on the remaining unadjusted power.

20. The adjustment method as described in claim 13, characterized in that, The step of adjusting the pulse adjustment element and the diameter changing mechanism according to the current situation until the target concentration value is reached also includes: After the current concentration value reaches the target concentration value, the diameter-changing mechanism is controlled to increase the orifice diameter of the flow-limiting section until the current concentration value stably reaches the target concentration value.

21. The adjustment method as described in claim 20, characterized in that, After the step of adjusting the orifice diameter of the flow-limiting section by the control diameter-changing mechanism until the current concentration value stabilizes at the target concentration value, the method further includes: Record the target concentration value, the pulse data output by the corresponding pulse adjustment element, and the aperture data of the variable diameter mechanism.

22. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The processor performs the adjustment method as described in any one of claims 13-21.

23. A readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the adjustment method as described in any one of claims 13-21.

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