Drive device and method for operating the drive device

Abstract

The application relates to the technical field of electric breast pumps, and particularly discloses a driving device and a method for operating the same, which comprises a driving body and a moving body connected with the driving body, the moving body is connected with a skin cup and is used for making the skin cup do linear reciprocating motion; and a driving control module is used for controlling the driving speed of the driving body and the stroke distance of the moving body according to a sucking control strategy. The skin cup is controlled through the driving body and the moving body to replace the air pump in the prior art, the working noise of the whole driving device can be reduced, the driving device can be used in a relatively quiet environment, and the use experience is improved; the driving body and the moving body are controlled through the sucking control strategy, the sucking process of a baby can be better simulated, the secretion of milk is promoted, and the use comfort is improved.

Description

Technical Field

[0001] This invention relates to the field of electric breast pump technology, and more specifically, to a drive device and a method for operating the drive device. Background Technology

[0002] An electric breast pump is a convenient tool to help breastfeeding mothers extract breast milk. Its working principle is mainly based on negative pressure.

[0003] Currently, most breast pumps on the market use an air pump as a power source to drive the breast cup to reciprocate. When working, the air pump controls the movement of the breast cup to create negative pressure inside the cup, thereby drawing out the milk. However, these types of breast pumps generate a lot of noise when running, especially when used at night when it is relatively quiet, which can affect the baby's rest. In addition, the movement of the breast cup cannot be well simulated to mimic the baby's sucking, resulting in poor comfort when using them.

[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] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides a driving device, comprising: a driving body and a moving body connected to the driving body, the moving body being connected to the diaphragm and used to cause the diaphragm to perform linear reciprocating motion; and a driving control module for controlling the driving speed of the driving body and the travel distance of the moving body according to a suction control strategy.

[0007] Preferably, the driving body is a motor, and a limiting cylinder is provided below the motor; The moving body includes: a screw connected to the output shaft of the motor, a nut threadedly connected to the outside of the screw, the nut being slidably connected inside a limiting cylinder, and a connecting rod A connected to the nut being provided inside the limiting cylinder.

[0008] Preferably, the driving body includes: a fixed cylinder with a magnetic block slidably disposed inside it, and two annular mounting grooves arranged vertically on the outer side of the fixed cylinder, with coil A and coil B respectively disposed in the two annular mounting grooves, and annular magnet A and annular magnet B respectively disposed at the top and bottom of the fixed cylinder.

[0009] Preferably, the moving body is a connecting rod B disposed on the magnetic block, and one end of the connecting rod B is used to connect to the leather cup.

[0010] Preferably, the bottom surface of the annular magnet A has the same magnetic poles as the top surface of the magnetic block, and the top surface of the annular magnet B has the same magnetic poles as the bottom surface of the magnetic block.

[0011] Preferably, the drive control module includes: The mode switching unit is used to switch the corresponding breast pumping mode and adjust the control parameters of the sucking control strategy based on the fullness, surface temperature and pressure of the breast during the breast pumping process. The speed drive control unit controls the drive body to work at the corresponding drive speed according to the adjusted suction control strategy; The stroke drive control unit controls the moving body to move at a corresponding stroke distance according to the adjusted sucking control strategy, and compensates for the stroke distance by the real-time pressure on the breast; Among them, the breast pumping modes include: stimulation mode and lactation mode.

[0012] Preferably, the mode switching unit includes: The acquisition subunit is used to acquire the breast fullness, surface temperature, and pressure in real time during the breast pumping process; The prediction subunit predicts the breast pumping mode based on the real-time acquired breast fullness, surface temperature, and pressure, and obtains the driving speed and travel distance corresponding to the predicted breast pumping mode. Adjust the sub-unit and adjust the control parameters of the sucking control strategy based on the prediction results of the breastfeeding pattern; When switching subunits, if it is necessary to switch between stimulation mode and lactation mode, a transition mode should be executed first.

[0013] The present invention also provides a method for operating a drive device, comprising: Based on the fullness, surface temperature, and pressure of the breast during the pumping process, switch to the corresponding pumping mode and adjust the control parameters of the sucking control strategy; Based on the adjusted sucking control strategy, the driving body is controlled to work at the corresponding driving speed, the moving body is controlled to move at the corresponding stroke distance, and the stroke distance is compensated by the real-time pressure on the breast; Among them, the breast pumping modes include: stimulation mode and lactation mode.

[0014] Preferably, the corresponding breast pumping mode is switched based on the breast fullness, surface temperature, and pressure during the pumping process, including: Real-time monitoring of breast fullness, surface temperature, and pressure during breast pumping; Based on the real-time acquired breast fullness, surface temperature, and pressure, the breast pumping mode is predicted, and the driving speed and travel distance corresponding to the predicted breast pumping mode are obtained. Based on the prediction results of breastfeeding patterns, adjust the control parameters of the sucking control strategy; When switching between stimulation mode and lactation mode, a transition mode should be executed first.

[0015] Preferably, the prediction of the breast pumping pattern based on real-time acquired breast fullness, surface temperature, and pressure includes: If the real-time pressure of the breast is less 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 real-time pressure of the breast remains at the second set pressure and the fullness of the breast decreases, the predicted result of the breast pumping mode is the lactation mode.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: The driving device and method for operating the driving device described in this invention control the operation of the milk cup through the driving body and the moving body, replacing the air pump in the prior art. This reduces the overall operating noise of the driving device, allowing it to be used in a quieter environment and improving the user experience. By controlling the driving body and the moving body through a sucking control strategy, the sucking process of an infant can be better simulated, promoting milk secretion and improving user comfort.

[0017] Other advantages, objectives and features of the present invention will be apparent in part from the following description, and in part from the study and practice of the invention, and will be understood by those skilled in the art. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the drive device described in this invention installed on an electric breast pump; Figure 2 This is an exploded structural diagram of an electric breast pump using the drive device described in this invention. Figure 3 This is a schematic diagram of the first structure of the driving device described in this invention; Figure 4 This is a schematic diagram of a second structure of the driving device described in this invention; Figure 5 This is a flowchart of the method for operating the drive device according to the present invention; Figure 6 This is a flowchart of step S1 in the method for operating the drive device according to the present invention; Figure 7 This is a flowchart of step S12 in the method for operating the drive device according to the present invention. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0020] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0021] like Figure 1 As shown, the present invention provides a driving device, including: a driving body 1 and a moving body 2 connected to the driving body 1, the moving body 2 being connected to a leather cup 3 for causing the leather cup 3 to perform linear reciprocating motion; and a driving control module for controlling the driving speed of the driving body 1 and the travel distance of the moving body 2 according to a sucking control strategy.

[0022] like Figure 2 As shown, the driving device of the present invention is applied to an electric breast pump. The electric breast pump includes an upper cover 5 and a bracket 6 connected to each other. A driving body 1 is provided in the mounting cavity formed between the upper cover 5 and the bracket 6. A suction cup assembly 7 and a leather cup 3 are provided below the bracket 6 and connected thereto. The leather cup 3 is sealed between the top of the suction cup assembly 7 and the bottom of the bracket 6. One end of the moving body 2 passes through the bracket 6 and is connected to the connecting post 8 provided on the leather cup 3. A control board 10 and a battery 9 are also provided in the mounting cavity. The battery 9 provides power to the control board 10 and the driving body 1. The driving control module can be set on the control board 10. The suction cup assembly 7 is connected to the bracket 6 at the top and detachably connected to the bottle at the bottom, with a flared opening on the side for contact with the breast.

[0023] When the electric breast pump is in use, the suction cup assembly 7 is in a sealed state. By controlling the up-and-down reciprocating movement of the leather cup 3, the pressure inside the suction cup assembly 7 can be changed. When negative pressure is formed, it generates a suction force on the breast.

[0024] The drive control module controls the drive body 1 and the motion body 2 to work according to the sucking control strategy, so that the drive body 1 drives the motion body 2 to make linear reciprocating motion. The sucking control strategy can simulate the sucking process of an infant, better promote milk secretion, and improve user comfort. The drive unit 1 can be any existing motor capable of driving the moving unit 2 to reciprocate, in order to replace the air pump, thereby reducing the overall operating noise of the drive device and further improving the user experience.

[0025] like Figure 3 The diagram shows a first structure of the drive device. In one embodiment, the drive body 1 is a motor 17, and a limiting cylinder 4 is provided below the motor 17. The moving body 2 includes: a screw 21 connected to the output shaft of the motor 17, a nut 22 threadedly connected to the outside of the screw 21, the nut 22 being slidably connected inside the limiting cylinder 4, and a connecting rod A23 connected to the nut 22 being provided inside the limiting cylinder 4.

[0026] One end of the connecting rod A23 is used to connect to the leather cup 3.

[0027] When the driving body 1 is a motor 17, the driving speed corresponds to the rotational speed of the motor 17, and the travel distance of the moving body 2 corresponds to the travel distance of the connecting rod A23. When the drive body 1 is working, it drives the screw 21 to rotate, while 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 21 rotates, it can drive the nut 22 to slide axially in the limiting cylinder 4, thereby driving the connecting rod A23 to reciprocate linearly and realize the drive of the cup 3.

[0028] like Figure 4 The diagram shows a second structure of the driving device. In one embodiment, the driving body 1 includes: a fixed cylinder 11, inside which a magnetic block 12 is slidably disposed. The outer side of the fixed cylinder 11 is provided with two annular mounting grooves arranged vertically and vertically. The two annular mounting grooves are respectively provided with coil A13 and coil B14. The top and bottom of the fixed cylinder 11 are respectively provided with annular magnet A15 and annular magnet B16.

[0029] Furthermore, the moving body 2 is a connecting rod B24 disposed on the magnetic block 12, and one end of the connecting rod B24 is used to connect with the leather cup 3.

[0030] In this embodiment, the driving speed corresponds to the sliding speed of the magnetic block 12, and the travel distance of the moving body 2 corresponds to the movement distance of the connecting rod B24; When the drive body 1 is working, when coil A13 is energized and coil B14 is de-energized, coil A13 generates a magnetic field that repels the magnetic block 12, causing the magnetic block 12 to move downward. When coil A13 is de-energized and coil B14 is energized, coil B14 generates a magnetic field that repels the magnetic block 12, causing the magnetic block 12 to move upward. This controls the up-and-down reciprocating motion of the magnetic block 12, which in turn drives the connecting rod B24 to reciprocate up and down, thereby driving the leather cup 3.

[0031] Furthermore, the bottom surface of the annular magnet A15 has the same magnetic poles as the top surface of the magnetic block 12, and the top surface of the annular magnet B16 has the same magnetic poles as the bottom surface of the magnetic block 12.

[0032] To prevent the magnetic block 12 from colliding with the top and bottom surfaces of the fixed cylinder 11, the annular magnets A15 and B16 respectively generate a repulsive force on the top and bottom surfaces of the magnetic block 12, so that the magnetic block 12 can be suspended inside the fixed cylinder 11, reducing the noise when the magnetic block 12 moves.

[0033] In one embodiment, the drive control module includes: The mode switching unit is used to switch the corresponding breast pumping mode and adjust the control parameters of the sucking control strategy based on the fullness, surface temperature and pressure of the breast during the breast pumping process. The speed drive control unit controls the drive body 1 to work at the corresponding drive speed according to the adjusted suction control strategy; The 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 by the real-time pressure on the breast; Among them, the breast pumping modes include: stimulation mode and lactation mode.

[0034] Specifically, at the beginning of use, the drive control module controls the drive body 1 and the motion body 2 using a pre-set suction control strategy. Then, it monitors the fullness, surface temperature, and pressure of the breast in real time during the milk expression process. If the fullness, surface temperature, and pressure of the breast meet the current milk expression mode, there is no need to adjust the suction control strategy; the drive body 1 and the motion body 2 can continue to be controlled using the pre-set suction control strategy. If the fullness, surface temperature, and pressure of the breast do not meet the current milk expression mode, it is necessary to switch the milk expression mode. This requires adjusting the control parameters of the pre-set suction control strategy to complete the switch. The above scheme can dynamically adjust the suction control strategy and improve the usage effect.

[0035] The pressure of the breast is obtained by monitoring the pressure change inside the suction cup assembly 7 through a pressure sensor. The part of the suction cup assembly 7 that contacts the breast is equipped with a temperature sensor and a bioimpedance sensor. The temperature sensor detects the change in the surface temperature of the breast, and the bioimpedance sensor assesses the breast fullness. The change in the impedance value is used to evaluate the breast fullness.

[0036] The sucking control strategy is a pre-established control model, and its expression is as follows: ; in, In time The pressure parameter value at time, that is, the function of the negative pressure generated in the suction cup assembly 7 changing with time; The initial amplitude parameter at high frequency (i.e., sucking intensity) is used to control the peak sucking force (pressure peak) during stimulation, for example... This indicates that the peak initial suction force corresponding to the high frequency is -200 mmHg; It is an exponentially decaying function. It is a natural constant. For example, the attenuation coefficient (e.g.) When the pressure amplitude decreases by 50% per second, it is used to adjust the duration of the stimulation mode; For high frequencies (e.g.) , which means 2 oscillations per second, is used to simulate the rapid sucking rhythm of a baby; For frequency A sine wave to simulate high-frequency oscillation. sine function, It is pi; A low-frequency, constant amplitude parameter (i.e., intensity) is used to maintain stable sucking force during lactation, for example... This indicates that the peak suction force corresponding to low frequency is -100 mmHg; The frequency corresponding to low frequency (e.g.) (This indicates that a complete oscillation is completed every 2 seconds), used to simulate the rapid sucking rhythm of an infant; For frequency A sine wave is used to simulate low-frequency oscillations; This indicates a rapid fluctuation (rapid sucking) corresponding to the stimulation pattern. The sucking intensity is high, but it gradually weakens over time to simulate the physiological process of a baby sucking rapidly to stimulate milk secretion. This indicates a slow fluctuation corresponding to the lactation pattern, with a constant sucking intensity, to simulate the rhythm of a baby's steady sucking to maintain milk flow.

[0037] By superimposing high and low frequencies, a pressure curve can be formed that mimics the combination of fast and slow sucking motions of a baby's natural sucking. Furthermore, by adjusting... , , , and It can meet the needs of different breastfeeding stages. For example, in the early stages of breastfeeding, when stronger stimulation is needed, the stimulation can be increased and gradually decreased. For example, it can be set to... , During the lactation maturation period, a stable sucking force is needed, which can be moderately stimulated and then rapidly diminished, for example, by setting... , If the user reports that the suction force is too strong, it can be reduced. or increase If lactation efficiency decreases, it can be increased. Or extend the period of low frequencies (reduce) ).

[0038] The pre-set sucking control strategy allows users to preset various parameters of the control model according to their needs. Then, during actual use, the control parameters of the sucking control strategy are adaptively adjusted based on the fullness, surface temperature, and pressure of the breast during the actual breast pumping process to achieve better results.

[0039] In one embodiment, the mode switching unit includes: The acquisition subunit is used to acquire the breast fullness, surface temperature, and pressure in real time during the breast pumping process; The prediction subunit predicts the breast pumping mode based on the real-time acquired breast fullness, surface temperature, and pressure, and obtains the driving speed and travel distance corresponding to the predicted breast pumping mode. Adjust the sub-unit and adjust the control parameters of the sucking control strategy based on the prediction results of the breastfeeding pattern; When switching subunits, if it is necessary to switch between stimulation mode and lactation mode, a transition mode should be executed first.

[0040] The prediction subunit can use a trained neural network model, taking the real-time breast fullness, surface temperature and pressure as input to the neural network model to predict the breast pumping mode, and obtain the driving speed and travel distance corresponding to the predicted breast pumping mode. When mode switching is required, the control parameters of the pre-set suction control strategy are adjusted to control the driving body 1 and the moving body 2 to work. When mode switching is not required, the current breast pumping mode is maintained and the driving body 1 and the moving body 2 are controlled according to the pre-set suction control strategy. In addition, when switching between stimulation mode and lactation mode, a transition mode can be executed first, such as gradually adjusting the driving speed and travel distance of the drive unit 1 to prevent user discomfort. For example, when switching from stimulation mode to lactation mode, the adjustment time for reducing the speed of motor 17 and increasing the travel distance can be set to make the mode switch smoother.

[0041] like Figure 5 As shown, the present invention also provides a method for operating a drive device, for operating the drive device described in the present invention, comprising: S1. Based on the fullness, surface temperature, and pressure of the breast during the breast pumping process, switch to the corresponding breast pumping mode and adjust the control parameters of the sucking control strategy. S2. Based on the adjusted sucking control strategy, control the drive body 1 to work at the corresponding drive speed, control the motion body 2 to move at the corresponding stroke distance, and compensate for the stroke distance by the real-time pressure on the breast. Among them, the breast pumping modes include: stimulation mode and lactation mode.

[0042] Specifically, at the beginning of use, the driving body 1 and the moving body 2 are controlled by a pre-set suction control strategy. Then, the fullness, surface temperature, and pressure of the breast are monitored in real time during the milk expression process. If the fullness, surface temperature, and pressure of the breast meet the requirements of the current milk expression mode, there is no need to adjust the suction control strategy. The driving body 1 and the moving body 2 can continue to be controlled by the pre-set suction control strategy. If the fullness, surface temperature, and pressure of the breast do not meet the requirements of the current milk expression mode, it is necessary to switch the milk expression mode. This requires adjusting the control parameters of the pre-set suction control strategy to complete the switch. The above method can dynamically adjust the suction control strategy and improve the usage effect.

[0043] The sucking control strategy is a pre-established control model, and its expression is as follows: ; in, In time The pressure parameter value at time, that is, the function of the negative pressure generated in the suction cup assembly 7 changing with time; The initial amplitude parameter at high frequency (i.e., sucking intensity) is used to control the peak sucking force (pressure peak) during stimulation, for example... This indicates that the peak initial suction force corresponding to the high frequency is -200 mmHg; It is an exponentially decaying function. It is a natural constant. For example, the attenuation coefficient (e.g.) When the pressure amplitude decreases by 50% per second, it is used to adjust the duration of the stimulation mode; For high frequencies (e.g.) , which means 2 oscillations per second, is used to simulate the rapid sucking rhythm of a baby; For frequency A sine wave to simulate high-frequency oscillation. sine function, It is pi; A low-frequency, constant amplitude parameter (i.e., intensity) is used to maintain stable sucking force during lactation, for example... This indicates that the peak suction force corresponding to low frequency is -100 mmHg; The frequency corresponding to low frequency (e.g.) (This indicates that a complete oscillation is completed every 2 seconds), used to simulate the rapid sucking rhythm of an infant; For frequency A sine wave is used to simulate low-frequency oscillations; This indicates a rapid fluctuation (rapid sucking) corresponding to the stimulation pattern. The sucking intensity is high, but it gradually weakens over time to simulate the physiological process of a baby sucking rapidly to stimulate milk secretion. This indicates a slow fluctuation corresponding to the lactation pattern, with a constant sucking intensity, to simulate the rhythm of a baby's steady sucking to maintain milk flow.

[0044] By superimposing high and low frequencies, a pressure curve can be formed that mimics the combination of fast and slow sucking motions of a baby's natural sucking. Furthermore, by adjusting... , , , and It can meet the needs of different breastfeeding stages. For example, in the early stages of breastfeeding, when stronger stimulation is needed, the stimulation can be increased and gradually decreased. For example, it can be set to... , During the lactation maturation period, a stable sucking force is needed, which can be moderately stimulated and then rapidly diminished, for example, by setting... , If the user reports that the suction force is too strong, it can be reduced. or increase If lactation efficiency decreases, it can be increased. Or extend the period of low frequencies (reduce) ).

[0045] The pre-set sucking control strategy allows users to preset various parameters of the control model according to their needs. Then, during actual use, the control parameters of the sucking control strategy are adaptively adjusted based on the fullness, surface temperature, and pressure of the breast during the actual breast pumping process to achieve better results.

[0046] like Figure 6 As shown, in one embodiment, the corresponding breast pumping mode is switched based on the breast fullness, surface temperature, and pressure during the pumping process, including: S11. Real-time acquisition of breast fullness, surface temperature, and pressure during breast pumping; S12. Based on the real-time acquired breast fullness, surface temperature and pressure, predict the breast pumping mode and obtain the driving speed and stroke distance corresponding to the breast pumping mode prediction result. S13. Adjust the control parameters of the sucking control strategy based on the prediction results of the breastfeeding pattern; When switching between stimulation mode and lactation mode, a transition mode should be executed first.

[0047] To predict the breast pumping mode, a trained neural network model can be used. The real-time breast fullness, surface temperature, and pressure are used as inputs to the neural network model to predict the breast pumping mode. The driving speed and travel distance corresponding to the predicted breast pumping mode are obtained. When a mode switch is required, the control parameters of the pre-set suction control strategy are adjusted to control the operation of the driving body 1 and the moving body 2. When a mode switch is not required, the current breast pumping mode is maintained and the driving body 1 and the moving body 2 are controlled according to the pre-set suction control strategy. In addition, when switching between stimulation mode and lactation mode, a transition mode can be executed first, such as gradually adjusting the driving speed and travel distance of the drive unit 1 to prevent user discomfort. For example, when switching from stimulation mode to lactation mode, the adjustment time for reducing the speed of motor 17 and increasing the travel distance can be set to make the mode switch smoother.

[0048] like Figure 7 As shown, further, based on real-time acquired breast fullness, surface temperature, and pressure, the breast pumping pattern is predicted, including: S121. If the maximum real-time pressure on the breast is greater than the first set pressure and the breast temperature rises, the predicted result of the breast pumping mode is the stimulation mode. S122. If the maximum real-time pressure on the breast is maintained at the second set pressure and the breast fullness decreases, the predicted result of the breast pumping mode is the lactation mode.

[0049] The second set pressure is less than the first set pressure.

[0050] The real-time pressure on the breast is obtained by monitoring the pressure inside the suction cup assembly 7, or by monitoring the pressure of the suction cup assembly 7 against the breast.

[0051] By monitoring the fullness, surface temperature, and pressure of the breast during the pumping process, the condition of the breast can be obtained, enabling the switching of pumping modes and adaptive adjustments to the sucking control strategy. This ensures pumping efficiency while making the sucking rhythm more natural and closer to the baby's sucking process, thus improving the user experience.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the present invention, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A driving device for an electric breast pump, the electric breast pump comprising an upper cover and a support connected to each other, forming a mounting cavity between the upper cover and the support, wherein a suction cup assembly and a leather cup are disposed below the support and connected thereto, the leather cup being sealed between the top of the suction cup assembly and the bottom of the support, characterized in that, include: A driving body and a moving body connected to the driving body; The driving body includes a fixed cylinder, a magnetic block is slidably disposed inside the fixed cylinder, and two annular mounting grooves are arranged vertically on the outside of the fixed cylinder. Coil A and coil B are respectively disposed in the two annular mounting grooves, and annular magnet A and annular magnet B are respectively disposed at the top and bottom of the fixed cylinder. The moving body is a connecting rod B set on the magnetic block, and one end of the connecting rod B passes through the bracket and is connected to the connecting post set on the leather cup; The bottom surface of the annular magnet A has the same magnetic poles as the top surface of the magnetic block, and the top surface of the annular magnet B has the same magnetic poles as the bottom surface of the magnetic block. When coil A is energized and coil B is de-energized, coil A generates a magnetic field that repels the magnetic block, causing the magnetic block to move downwards; when coil A is de-energized and coil B is energized, coil B generates a magnetic field that repels the magnetic block, causing the magnetic block to move upwards, so that the magnetic block drives the connecting rod B to reciprocate up and down, and the connecting rod B drives the diaphragm to reciprocate, causing the pressure inside the suction cup assembly in the sealed state to change and form a negative pressure; The driving device also includes a driving control module, a pressure sensor, a temperature sensor, and a bioimpedance sensor. The pressure sensor is used to monitor pressure changes within the suction cup assembly. The temperature sensor and the bioimpedance sensor are located at the portion of the suction cup assembly that contacts the breast. The temperature sensor is used to detect changes in breast surface temperature, and the bioimpedance sensor is used to assess breast fullness through changes in impedance values. The drive control module includes: The mode switching unit is used to switch the corresponding breast pumping mode and adjust the control parameters of the sucking control strategy based on the fullness, surface temperature and pressure of the breast during the breast pumping process. The speed drive control unit is used to control the drive body to work at a corresponding drive speed according to the adjusted suction control strategy; The stroke drive control unit is used to control the moving body to move at a corresponding stroke distance according to the adjusted sucking control strategy, and to compensate for the stroke distance by the real-time pressure on the breast; The milk extraction modes include a stimulation mode and a lactation mode.

2. The driving device according to claim 1, characterized in that, The mode switching unit includes: The acquisition subunit is used to acquire the breast fullness, surface temperature, and pressure in real time during the breast pumping process; The prediction subunit is used to predict the breast pumping mode based on the real-time acquired breast fullness, surface temperature and pressure, and obtain the driving speed and stroke distance corresponding to the breast pumping mode prediction result. An adjustment subunit is used to adjust the control parameters of the sucking control strategy based on the prediction results of the breastfeeding mode. The switching subunit is used to execute a transition mode first when switching between stimulation mode and lactation mode.

3. The driving device according to claim 2, characterized in that, The prediction subunit is configured as follows: If the maximum real-time pressure on the breast is greater than the first set pressure and the breast temperature rises, the predicted breast pumping mode will be the stimulation mode. If the maximum real-time pressure on the breast remains at the second set pressure and the breast fullness decreases, the predicted breast pumping mode is lactation mode. The second set pressure is less than the first set pressure.

4. The driving device according to claim 2, characterized in that, When switching between stimulation mode and lactation mode, the transition mode switches the milk pumping mode by gradually adjusting the driving speed of the driving body and the travel distance of the moving body.

5. The driving device according to claim 1, characterized in that, The sucking control strategy is a pre-established control model, and the expression of the control model is: ; Wherein, P(t) is the pressure parameter value of the negative pressure generated in the suction cup assembly at time t as a function of time; These are the initial amplitude parameters for high frequencies; It is an exponentially decaying function. The attenuation coefficient; The frequency corresponding to the high frequency; For low-frequency constant amplitude parameters; This refers to the frequency corresponding to low frequencies.

6. The driving device according to claim 2, characterized in that, The prediction subunit uses a trained neural network model, taking the real-time breast fullness, surface temperature, and pressure as inputs to the neural network model to predict the breast pumping mode and obtain the driving speed and travel distance corresponding to the predicted breast pumping mode.

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