Drive device and method for operating drive device

Abstract

The invention relates to the technical field of electric breast pumps, and particularly discloses a driving device and a method for operating the driving device.The driving device comprises a driving main body and a moving main body connected with the driving main body, and the moving main body is connected with a leather cup and used for making the leather cup do linear reciprocating motion; and the driving control module is used for controlling the driving speed of the driving main body and the stroke distance of the moving main body according to the sucking control strategy. The leather cup is controlled to work through the driving main body and the moving main body, so that an air pump in the prior art is replaced, the overall working noise of the driving device can be reduced, the driving device can be used in a quiet environment, and the use experience is improved; the driving main body and the moving main body are controlled through a sucking control strategy, so that the sucking process of an infant can be better simulated, milk secretion is promoted, and the use comfort is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric breast pumps, and more specifically, to a driving device and a method for operating the driving device. Background Art

[0002] An electric breast pump is a convenient tool for helping lactating mothers extract breast milk, and its working principle is mainly based on the negative pressure principle.

[0003] Currently on the market, an air pump is used as a power source to drive a leather cup to reciprocate. During operation, the movement of the leather cup is controlled by the air pump to create a negative pressure in the breast milk suction cup, thereby sucking out the breast milk. However, such breast pumps generate relatively large noise during operation, especially when used at night in a relatively quiet environment, which can affect the baby's rest. In addition, when controlling the movement of the leather cup, it cannot well simulate the sucking of a baby, resulting in poor comfort during use.

[0004] Therefore, it is necessary to propose a driving device and a method for operating the driving device to at least partially solve the problems existing in the prior art. Summary of the Invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further elaborated in the Detailed Description section. The Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides a driving device, including: a driving main body and a moving main body connected to the driving main body, the moving main body is connected to a leather cup and is used to make the leather cup perform a linear reciprocating motion; a driving control module, which is used to control the driving speed of the driving main body and the stroke distance of the moving main body according to a sucking control strategy.

[0007] Preferably, the driving main body is a motor, and a limiting cylinder is arranged below the motor;

[0008] The moving main body includes: a screw rod connected to the output shaft of the motor, a nut is threadedly connected to the outside of the screw rod, the nut is slidably connected in the limiting cylinder, and a connecting rod A connected to the nut is also arranged in the limiting cylinder.

[0009] Preferably, the driving main body includes: a fixed cylinder, a magnetic block is slidably arranged inside it, two annular mounting grooves are arranged on the outside of the fixed cylinder and are arranged separately up and down, a coil A and a coil B are respectively arranged in the two annular mounting grooves, and an annular magnet A and an annular magnet B are respectively arranged at the top and bottom of the fixed cylinder.

[0010] Preferably, the moving body is a connecting rod B disposed on the magnetic block, and one end of the connecting rod B is used for connecting with the leather cup.

[0011] Preferably, the bottom surface of the annular magnet A has the same magnetic pole as the top surface of the magnetic block, and the top surface of the annular magnet B has the same magnetic pole as the bottom surface of the magnetic block.

[0012] Preferably, the drive control module includes:

[0013] A mode switching unit, configured to switch corresponding milk suction modes according to the fullness, surface temperature, and pressure of the breast during the milk suction process, and adjust the control parameters of the sucking control strategy;

[0014] A speed drive control unit, configured to control the drive body to work at a corresponding drive speed according to the adjusted sucking control strategy;

[0015] A stroke drive control unit, configured to control the moving body to move at a corresponding stroke distance according to the adjusted sucking control strategy, and compensate the stroke distance through the real-time pressure received by the breast;

[0016] Wherein, the milk suction modes include: a stimulation mode and a lactation mode.

[0017] Preferably, the mode switching unit includes:

[0018] An acquisition subunit, configured to acquire the fullness, surface temperature, and pressure of the breast in real time during the milk suction process;

[0019] A prediction subunit, configured to predict the milk suction mode according to the fullness, surface temperature, and pressure of the breast acquired in real time, and obtain the drive speed and stroke distance corresponding to the milk suction mode prediction result;

[0020] An adjustment subunit, configured to adjust the control parameters of the sucking control strategy according to the milk suction mode prediction result;

[0021] A switching subunit, when it is necessary to switch between the stimulation mode and the lactation mode, first execute a transition mode.

[0022] The present invention also provides a method for operating a drive device, including:

[0023] Switching corresponding milk suction modes according to the fullness, surface temperature, and pressure of the breast during the milk suction process, and adjusting the control parameters of the sucking control strategy;

[0024] Controlling the drive body to work at a corresponding drive speed according to the adjusted sucking control strategy, controlling the moving body to move at a corresponding stroke distance, and compensating the stroke distance through the real-time pressure received by the breast;

[0025] Among them, the milk sucking modes include: a stimulation mode and a lactation mode.

[0026] Preferably, according to the fullness, surface temperature and pressure of the breast during milk sucking, the corresponding milk sucking mode is switched, including:

[0027] Obtain the fullness, surface temperature and pressure of the breast in real time during milk sucking;

[0028] Predict the milk sucking mode according to the fullness, surface temperature and pressure of the breast obtained in real time, and obtain the driving speed and stroke distance corresponding to the milk sucking mode prediction result;

[0029] Adjust the control parameters of the sucking control strategy according to the milk sucking mode prediction result;

[0030] Among them, when it is necessary to switch between the stimulation mode and the lactation mode, the transition mode is executed first.

[0031] Preferably, predicting the milk sucking mode according to the fullness, surface temperature and pressure of the breast obtained in real time includes:

[0032] If the real-time pressure of the breast is less than the first set pressure and the temperature of the breast rises, the milk sucking mode prediction result is the stimulation mode;

[0033] If the real-time pressure of the breast is maintained at the second set pressure and the fullness of the breast decreases, the milk sucking mode prediction result is the lactation mode.

[0034] Compared with the prior art, the present invention at least includes the following beneficial effects:

[0035] The driving device and the method for operating the driving device according to the present invention control the leather cup to work through the driving main body and the moving main body, so as to replace the air pump in the prior art, which can reduce the overall working noise of the driving device, can be used in a relatively quiet environment, and improve the use experience; by controlling the driving main body and the moving main body through the sucking control strategy, it can better simulate the baby sucking process, promote milk secretion, and improve the use comfort.

[0036] For the driving device and the method for operating the driving device according to the present invention, other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0038] Figure 1Schematic structural diagram of the driving device according to the present invention provided on an electric breast pump;

[0039] Figure 2 Exploded structural diagram of the electric breast pump to which the driving device according to the present invention is applied;

[0040] Figure 3 First schematic structural diagram of the driving device according to the present invention;

[0041] Figure 4 Second schematic structural diagram of the driving device according to the present invention;

[0042] Figure 5 Flow chart of the method for operating the driving device according to the present invention;

[0043] Figure 6 Flow chart of step S1 in the method for operating the driving device according to the present invention;

[0044] Figure 7 Flow chart of step S12 in the method for operating the driving device according to the present invention. Detailed implementation manners

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it according to the description in the specification.

[0046] It should be understood that terms such as "having", "comprising", and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0047] As Figure 1 shown, the present invention provides a driving device, including: a driving main body 1 and a moving main body 2 connected to the driving main body 1, the moving main body 2 is connected to a bellows 3, and is used to make the bellows 3 perform a linear reciprocating motion; a driving control module, which is used to control the driving speed of the driving main body 1 and the stroke distance of the moving main body 2 according to a sucking control strategy.

[0048] As Figure 2 shown, the driving device according to the present invention is applied to an electric breast pump, and the electric breast pump includes an upper cover 5 and a bracket 6 connected to each other. A driving main body 1 is provided in an installation cavity formed between the upper cover 5 and the bracket 6. A suction cup assembly 7 and a bellows 3 connected to it are provided below the bracket 6. The bellows 3 is hermetically connected between the top of the suction cup assembly 7 and the bottom of the bracket 6. After one end of the moving main body 2 passes through the bracket 6, it is connected to a connecting column 8 provided on the bellows 3; a control board 10 and a battery 9 are also provided in the installation cavity. The battery 9 provides electrical energy for the control board 10 and the driving main body 1, and the driving control module can be arranged on the control board 10;

[0049] Among them, the top of the suction cup assembly 7 is connected to the bracket 6, the bottom is detachably connected to the milk bottle, and a flared mouth for contacting the breast is provided on the side.

[0050] When the electric breast pump is in use, the inside of the suction cup assembly 7 is in a sealed state. By controlling the reciprocating movement of the leather cup 3 up and down, the pressure inside the suction cup assembly 7 can be changed. When a negative pressure is formed, a sucking force is generated on the breast.

[0051] The drive control module controls the drive main body 1 and the moving main body 2 to work according to the sucking control strategy, so that the drive main body 1 drives the moving main body 2 to perform a linear reciprocating motion. The sucking control strategy can simulate the sucking process of a baby, better promote milk secretion, and improve the use comfort;

[0052] The drive main body 1 can adopt any motor in the prior art that can drive the moving main body 2 to perform a reciprocating motion to replace the air pump, thereby reducing the overall working noise of the drive device and further improving the use experience.

[0053] As Figure 3 shown in the first structure of the drive device. In one embodiment, the drive main body 1 is a motor 17, and a limiting cylinder 4 is provided below the motor 17;

[0054] The moving main body 2 includes: a screw rod 21 connected to the output shaft of the motor 17. A nut 22 is threadedly connected to the outside of the screw rod 21. The nut 22 is slidably connected inside the limiting cylinder 4. A connecting rod A23 connected to the nut 22 is also provided inside the limiting cylinder 4.

[0055] One end of the connecting rod A23 is used to connect to the leather cup 3.

[0056] When the drive main body 1 is the motor 17, the drive speed corresponds to the rotation speed of the motor 17, and the stroke distance of the moving main body 2 corresponds to the moving distance of the connecting rod A23;

[0057] When the drive main body 1 works, it drives the screw rod 21 to rotate. The nut 22 is radially limited by the limiting cylinder 4, that is, the nut 22 can only move axially along the limiting cylinder 4. Therefore, when the screw rod 21 rotates, it can drive the nut 22 to slide axially inside the limiting cylinder 4, thereby driving the connecting rod A23 to perform a linear reciprocating motion and realizing the drive of the leather cup 3.

[0058] As Figure 4 shown in the second structure of the drive device. In one embodiment, the drive main body 1 includes: a fixed cylinder 11, inside which a magnetic block 12 is slidably provided. Two annular mounting grooves are arranged up and down and separated on the outside of the fixed cylinder 11. A coil A13 and a coil B14 are respectively provided in the two annular mounting grooves. Annular magnets A15 and annular magnets B16 are respectively provided at the top and bottom of the fixed cylinder 11.

[0059] Further, the moving body 2 is a connecting rod B24 provided on the magnetic block 12, and one end of the connecting rod B24 is used to connect with the leather cup 3.

[0060] In this embodiment, the driving speed corresponds to the sliding speed of the magnetic block 12, and the stroke distance of the moving body 2 corresponds to the moving distance of the connecting rod B24;

[0061] When the driving body 1 works, when the coil A13 is energized and the coil B14 is de-energized, the coil A13 generates a magnetic field repulsive to the magnetic block 12, causing the magnetic block 12 to move downward. When the coil A13 is de-energized and the coil B14 is energized, the coil B14 generates a magnetic field repulsive to the magnetic block 12, causing the magnetic block 12 to move upward. Thus, the reciprocating up and down movement of the magnetic block 12 is controlled, and then the connecting rod B24 is driven to make a reciprocating up and down movement to realize the driving of the leather cup 3.

[0062] Further, the bottom surface of the annular magnet A15 has the same magnetic pole as the top surface of the magnetic block 12, and the top surface of the annular magnet B16 has the same magnetic pole as the bottom surface of the magnetic block 12.

[0063] In order to prevent the magnetic block 12 from hitting the top and bottom surfaces of the fixed cylinder 11, the annular magnet A15 and the annular magnet B16 respectively generate repulsive forces on the top and bottom surfaces of the magnetic block 12, so that the magnetic block 12 can be suspended in the fixed cylinder 11, reducing the noise when the magnetic block 12 moves.

[0064] In one embodiment, the drive control module includes:

[0065] A mode switching unit, configured to switch corresponding milk suction modes according to the fullness, surface temperature, and pressure of the breast during the milk suction process, and adjust the control parameters of the sucking control strategy;

[0066] A speed drive control unit, which controls the driving body 1 to work at a corresponding driving speed according to the adjusted sucking control strategy;

[0067] A stroke drive control unit, which controls the moving body 2 to move at a corresponding stroke distance according to the adjusted sucking control strategy, and compensates the stroke distance according to the real-time pressure received by the breast;

[0068] Among them, the milk suction modes include: a stimulation mode and a lactation mode.

[0069] Specifically, at the beginning of use, the drive control module controls the drive main body 1 and the motion main body 2 according to a preset sucking control strategy, and then monitors the breast fullness, surface temperature, and pressure in real time during the milk sucking process. If the breast fullness, surface temperature, and pressure meet the current milk sucking mode, there is no need to adjust the sucking control strategy, and it is only necessary to continue to control the drive main body 1 and the motion main body 2 according to the preset sucking control strategy. If the breast fullness, surface temperature, and pressure do not meet the current milk sucking mode, it is necessary to switch the milk sucking mode, and it is necessary to adjust the control parameters of the preset sucking control strategy to complete the switching of the milk sucking mode. The above solution can dynamically adjust the sucking control strategy and improve the use effect.

[0070] The pressure of the breast is obtained by monitoring the pressure change in the sucker assembly 7 through a pressure sensor. A temperature sensor and a bioimpedance sensor are provided at the part of the sucker assembly 7 in contact with the breast. The surface temperature change of the breast is detected by the temperature sensor, and the breast fullness is evaluated by the bioimpedance sensor. The breast fullness is evaluated through the change of the impedance value.

[0071] Among them, the sucking control strategy is a pre-established control model, and its expression is as follows:

[0072] P(t) = A 1 e -αt sin(2πf 1 t) + A 2 sin(2πf 2 t)

[0073] Among them, P(t) is the pressure parameter value at time t, that is, the function of the negative pressure generated in the sucker assembly 7 changing with time;

[0074] A 1 is the initial amplitude parameter of the high frequency (i.e., the sucking intensity), which is used to control the peak sucking force (pressure peak) in the stimulation mode. For example, A 1 = 200, indicating that the initial sucking force peak corresponding to the high frequency is -200 mmHg;

[0075] e -αt is the exponential decay function. e is the natural constant, and α is the decay coefficient (for example, when α = 0.5, it means that the pressure amplitude decays by 50% per second), which is used to adjust the duration of the stimulation mode;

[0076] f 1 is the frequency corresponding to the high frequency (for example, f 1 = 2 Hz, indicating that it oscillates 2 times per second), which is used to simulate the rapid sucking rhythm of the baby;

[0077] sin(2πf 1 t) is the frequency of f 1A sine wave is used to simulate high-frequency oscillation, where sin() is the sine function and π is the ratio of a circle's circumference to its diameter;

[0078] A 2 is a constant amplitude parameter (i.e., intensity) for the low frequency, which is used to maintain a stable sucking force in the lactation mode. For example, A 2 = 100, indicating that the peak sucking force corresponding to the low frequency is -100 mmHg;

[0079] f 2 is the frequency corresponding to the low frequency (e.g., f 1 = 0.5 Hz, indicating that a complete oscillation is completed every 2 seconds), which is used to simulate the rapid sucking rhythm of an infant;

[0080] sin(2πf 2 t) is a sine wave with a frequency of f 2 to simulate low-frequency oscillation;

[0081] A 1 e -αt sin(2πf 1 t) represents the rapid fluctuations (rapid sucking) corresponding to the stimulation pattern. The sucking intensity is high but gradually weakens over time to simulate the physiological process of an infant's rapid sucking to stimulate milk secretion;

[0082] A 2 sin(2πf 2 t) represents the slow fluctuations corresponding to the lactation mode, with a constant sucking intensity, to simulate the rhythm of an infant's stable sucking to maintain milk flow.

[0083] By superimposing the high frequency and the low frequency, a pressure curve similar to the rapid and slow combination of an infant's natural sucking can be formed. Moreover, by adjusting A 1 、A 2 、α、f 1 and f 2 , the needs of different lactation stages can be met. For example, at the beginning of lactation, stronger stimulation is required, so the stimulation can be enhanced and slowly attenuated. For example, A 1 = 200, = 0.3. While at the mature stage of lactation, a stable sucking force is required, so moderate stimulation and rapid attenuation can be carried out. For example, A 1 = 150, = 0.6; If the user feedbacks that the sucking force is too large, A 1 can be reduced or α can be increased. If the lactation efficiency decreases, A 2 can be increased or the period of the low frequency can be extended (f 2 is reduced).

[0084] A preset sucking control strategy, that is, the user can preset each parameter of the control model according to the usage requirements, and then during actual use, adjust the control parameters of the sucking control strategy adaptively according to the fullness, surface temperature and pressure of the breast during the actual milk sucking process, so as to achieve a better usage effect.

[0085] In one embodiment, the mode switching unit includes:

[0086] An acquisition subunit, configured to acquire the fullness, surface temperature and pressure of the breast during the milk sucking process in real time;

[0087] A prediction subunit, which predicts the milk sucking mode according to the fullness, surface temperature and pressure of the breast acquired in real time, and obtains the driving speed and stroke distance corresponding to the milk sucking mode prediction result;

[0088] An adjustment subunit, which adjusts the control parameters of the sucking control strategy according to the milk sucking mode prediction result;

[0089] A switching subunit, when it is necessary to switch between the stimulation mode and the lactation mode, first execute the transition mode.

[0090] Among them, the prediction subunit can adopt a trained neural network model, use the fullness, surface temperature and pressure of the breast acquired in real time as the input of the neural network model to predict the milk sucking mode, obtain the driving speed and stroke distance corresponding to the milk sucking mode prediction result, and when it is necessary to perform mode switching, adjust the control parameters of the preset sucking control strategy to control the driving main body 1 and the moving main body 2 to work. When mode switching is not required, only maintain the current milk sucking mode and control the driving main body 1 and the moving main body 2 according to the preset sucking control strategy;

[0091] In addition, when switching between the stimulation mode and the lactation mode, the transition mode can be executed first. For example, gradually adjust the driving speed and stroke distance of the driving main body 1 to prevent the user from feeling uncomfortable. For example, when switching from the stimulation mode to the lactation mode, set the adjustment time for the rotation speed of the motor 17 to decrease and the stroke distance to increase, so that the mode switching is smoother.

[0092] As Figure 5 shown, the present invention also provides a method for operating a driving device, which is used to operate the driving device of the present invention, including:

[0093] S1. Switch the corresponding milk sucking mode according to the fullness, surface temperature and pressure of the breast during the milk sucking process, and adjust the control parameters of the sucking control strategy;

[0094] S2. According to the adjusted sucking control strategy, control the driving body 1 to work at the corresponding driving speed, control the moving body 2 to move at the corresponding stroke distance, and compensate the stroke distance through the real-time pressure received by the breast;

[0095] Among them, the milk sucking modes include: stimulation mode and lactation mode.

[0096] Specifically, at the beginning of use, control the driving body 1 and the moving body 2 according to the preset sucking control strategy, and then monitor the breast fullness, surface temperature and pressure in real time during milk sucking. If the breast fullness, surface temperature and pressure meet the current milk sucking mode, there is no need to adjust the sucking control strategy, and continue to control the driving body 1 and the moving body 2 according to the preset sucking control strategy. If the breast fullness, surface temperature and pressure do not meet the current milk sucking mode, it is necessary to switch the milk sucking mode, and it is necessary to adjust the control parameters of the preset sucking control strategy to complete the switching of the milk sucking mode. The above method can dynamically adjust the sucking control strategy and improve the use effect.

[0097] Among them, the sucking control strategy is a pre-established control model, and its expression is as follows:

[0098] P(t) = A 1 e -αt sin(2πf 1 t) + A 2 sin(2πf 2 t)

[0099] Among them, P(t) is the pressure parameter value at time t, that is, the function of the negative pressure generated in the suction cup assembly 7 changing with time;

[0100] A 1 is the initial amplitude parameter of the high frequency (i.e., the sucking intensity), which is used to control the peak sucking force (pressure peak) in the stimulation mode. For example, A 1 = 200, indicating that the initial peak sucking force corresponding to the high frequency is -200 mmHg;

[0101] e -αt is the exponential decay function, e is the natural constant, and α is the decay coefficient (for example, when α = 0.5, it means that the pressure amplitude decays by 50% per second), which is used to adjust the duration of the stimulation mode;

[0102] f 1 is the frequency corresponding to the high frequency (for example, f 1 = 2 Hz, indicating that it oscillates 2 times per second), which is used to simulate the rapid sucking rhythm of the baby;

[0103] sin(2πf 1 t) is the sine function with a frequency of f1 The sine wave of sin( ), where π is the ratio of a circle's circumference to its diameter, is used to simulate high-frequency oscillation.

[0104] A 2 is a low-frequency constant amplitude parameter (i.e., intensity) used to maintain a stable sucking force in the lactation mode. For example, A 2 = 100, indicating that the peak sucking force corresponding to the low frequency is -100 mmHg.

[0105] f 2 is the frequency corresponding to the low frequency (e.g., f 1 = 0.5 Hz, indicating that a complete oscillation is completed every 2 seconds), which is used to simulate the rapid sucking rhythm of an infant.

[0106] sin(2πft 2 is a sine wave with a frequency of f 2 used to simulate low-frequency oscillation.

[0107] A 1 e -αt sin(2πft 1 represents the rapid fluctuations (rapid sucking) corresponding to the stimulation pattern. The sucking intensity is high but gradually weakens over time, simulating the physiological process of an infant's rapid sucking to stimulate milk secretion.

[0108] A 2 sin(2πft 2 represents the slow fluctuations corresponding to the lactation mode, with a constant sucking intensity, simulating the rhythm of an infant's stable sucking to maintain milk flow.

[0109] By superimposing high and low frequencies, a pressure curve similar to the rapid and slow combination of an infant's natural sucking can be formed. Moreover, by adjusting A 1 , A 2 , α, f 1 and f 2 , the needs of different lactation stages can be met. For example, in the early stage of lactation, stronger stimulation is required, so the stimulation can be enhanced and slowly attenuated. For example, A 1 = 200, = 0.3. While in the mature stage of lactation, a stable sucking force is needed, so moderate stimulation can be applied and rapidly attenuated. For example, A 1 = 150, = 0.6. If the user feedbacks that the sucking force is too large, A 1 can be reduced or α can be increased. If the lactation efficiency decreases, A 2 can be increased or the period of the low frequency can be extended (by reducing f 2 ).

[0110] A preset sucking control strategy, that is, the user can preset each parameter of the control model according to the usage requirements, and then, during actual use, adaptively adjust the control parameters of the sucking control strategy according to the fullness, surface temperature, and pressure of the breast during the actual milk sucking process to achieve a better usage effect.

[0111] As Figure 6 shown, in one embodiment, according to the fullness, surface temperature, and pressure of the breast during the milk sucking process, switch the corresponding milk sucking mode, including:

[0112] S11. Obtain the fullness, surface temperature, and pressure of the breast during the milk sucking process in real time;

[0113] S12. Predict the milk sucking mode according to the fullness, surface temperature, and pressure of the breast obtained in real time, and obtain the driving speed and stroke distance corresponding to the milk sucking mode prediction result;

[0114] S13. Adjust the control parameters of the sucking control strategy according to the milk sucking mode prediction result;

[0115] Among them, when it is necessary to switch between the stimulation mode and the lactation mode, the transition mode is executed first.

[0116] To predict the milk sucking mode, a trained neural network model can be used. Take the fullness, surface temperature, and pressure of the breast obtained in real time as the input of the neural network model to predict the milk sucking mode, and obtain the driving speed and stroke distance corresponding to the milk sucking mode prediction result. When it is necessary to switch modes, adjust the control parameters of the preset sucking control strategy to control the driving main body 1 and the moving main body 2 to work. When it is not necessary to switch modes, just keep the current milk sucking mode and control the driving main body 1 and the moving main body 2 according to the preset sucking control strategy;

[0117] In addition, when switching between the stimulation mode and the lactation mode, the transition mode can be executed first. For example, gradually adjust the driving speed and stroke distance of the driving main body 1 to prevent discomfort to the user. For example, when switching from the stimulation mode to the lactation mode, set the adjustment time for the motor 17 speed to decrease and the stroke distance to increase to make the mode switch smoother.

[0118] As Figure 7 shown, further, predicting the milk sucking mode according to the fullness, surface temperature, and pressure of the breast obtained in real time includes:

[0119] S121. If the maximum real-time pressure received by the breast is greater than the first set pressure and the temperature of the breast rises, the milk sucking mode prediction result is the stimulation mode;

[0120] S122. If the maximum real-time pressure on the breast is maintained at the second set pressure and the fullness of the breast decreases, the predicted result of the milk suction mode is the lactation mode.

[0121] Among them, the second set pressure is less than the first set pressure.

[0122] The real-time pressure on the breast is obtained by monitoring the pressure inside the suction cup assembly 7 or by monitoring the fitting pressure between the suction cup assembly 7 and the breast.

[0123] By monitoring the fullness, surface temperature, and pressure of the breast during milk suction, the situation of the breast during milk suction can be obtained, so as to realize the switching of the milk suction mode and the adaptive adjustment of the sucking control strategy, ensuring the milk suction efficiency while making the sucking force rhythm more natural, closer to the baby's sucking process, and improving the user experience.

[0124] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0125] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0126] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, other modifications can be easily realized. Therefore, without departing from the general concept defined by the present invention, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A driving device, characterized in that: include: A driving body (1) and a moving body (2) connected to the driving body (1), wherein the moving body (2) is connected to a leather cup (3) and is used to make the leather cup (3) perform linear reciprocating motion; The drive control module is used to control the drive speed of the drive body (1) and the travel distance of the motion body (2) according to the sucking control strategy.

2. The driving device according to claim 1, characterized in that: The driving body (1) is a motor (17), and a limiting cylinder (4) is provided below the motor (17); The moving body (2) comprises: a screw (21) connected to the output shaft of the motor (17); a nut (22) is threadedly connected to the outer side of the screw (21); the nut (22) is slidably connected in a limiting cylinder (4); and a connecting rod A (23) connected to the nut (22) is also provided in the limiting cylinder (4).

3. The driving device according to claim 1, characterized in that: The driving body (1) comprises: a fixed cylinder (11), inside which a magnetic block (12) is slidably arranged, the outer side of the fixed cylinder (11) is provided with two annular mounting grooves which are separated and arranged up and down, the two annular mounting grooves are respectively provided with a coil A (13) and a coil B (14), and the top and bottom of the fixed cylinder (11) are respectively provided with an annular magnet A (15) and an annular magnet B (16).

4. The driving device according to claim 3, characterized in that: The moving body (2) is a connecting rod B (24) arranged on the magnetic block (12), and one end of the connecting rod B (24) is used to be connected to the leather cup (3).

5. The driving device according to claim 3, characterized in that: The bottom surface of the annular magnet A (15) has the same magnetic pole as the top surface of the magnetic block (12), and the top surface of the annular magnet B (16) has the same magnetic pole as the bottom surface of the magnetic block (12).

6. The driving device according to claim 1, characterized in that: The drive control module comprises: A mode switching unit, used to switch the corresponding breast pumping mode according to the fullness, surface temperature and pressure of the breast during breast pumping, and adjust the control parameters of the sucking control strategy; A speed driving control unit controls the driving body (1) to operate at a corresponding driving speed according to the adjusted sucking control strategy; A stroke drive control unit controls the moving body (2) to move at a corresponding stroke distance according to the adjusted sucking control strategy, and compensates for the stroke distance through the real-time pressure exerted on the breast; Among them, the breast pumping mode includes: stimulation mode and lactation mode.

7. The driving device according to claim 6, characterized in that: The mode switching unit comprises: An acquisition subunit, used to obtain the fullness, surface temperature and pressure of the breast in real time during breast pumping; The prediction subunit predicts the breast pumping mode according to the breast fullness, surface temperature and pressure acquired in real time, and obtains the driving speed and travel distance corresponding to the predicted result of the breast pumping mode; The adjustment subunit adjusts the control parameters of the sucking control strategy according to the prediction result of the sucking mode; When switching subunits, when switching between stimulation mode and lactation mode, first execute the transition mode.

8. A method for operating a driving device, for operating the driving device according to any one of claims 1 to 7, characterized in that: include: According to the fullness, surface temperature and pressure of the breast during breast pumping, the corresponding breast pumping mode is switched and the control parameters of the sucking control strategy are adjusted; According to the adjusted sucking control strategy, the driving body (1) is controlled to work at a corresponding driving speed, and the moving body (2) is controlled to move at a corresponding travel distance; Among them, the breast pumping mode includes: stimulation mode and lactation mode.

9. The method for operating a drive device according to claim 8, characterized in that: According to the fullness, surface temperature and pressure of the breast during breast pumping, switch to the corresponding breast pumping mode, including: Obtain breast fullness, surface temperature and pressure in real time during breast pumping; According to the fullness, surface temperature and pressure of the breast acquired in real time, the breast pumping mode is predicted, and the driving speed and travel distance corresponding to the predicted result of the breast pumping mode are obtained; Adjust the control parameters of the sucking control strategy according to the predicted results of the sucking pattern; Among them, when it is necessary to switch between the stimulation mode and the lactation mode, the transition mode is executed first.

10. The method for operating a drive device according to claim 9, characterized in that Based on the real-time breast fullness, surface temperature and pressure, the prediction of breast pumping mode includes: If the maximum real-time pressure on the breast is greater than the first set pressure and the temperature of the breast rises, the predicted result of the breast pumping mode is the stimulation mode; If the maximum real-time pressure on the breast is maintained at the second set pressure and the fullness of the breast decreases, the predicted result of the breast pumping mode is the lactation mode; The second set pressure is lower than the first set pressure.

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