Method for controlling breast pump, circuit control system, and method for controlling circuit

Abstract

Provided is a method for controlling a breast pump, comprising: providing a horn cover configured for forming a first cavity that fits and at least partially accommodates a breast without gaps to form a closed cavity; providing a flexible member provided with a first magnetic member, and communicating at least a part of the flexible member with the closed cavity to form a part of a cavity wall of the closed cavity; and providing a second magnetic member, and using the second magnetic member to control the movement of the first magnetic member, so as to drive the flexible member to deform and form a negative pressure in the closed cavity to extract milk from the breast.

Description

A breast pump control method, circuit control system and circuit control method

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese patent application No. 202411374263.9, filed on September 29, 2024, and entitled “A breast pump control method, circuit control system and circuit control method”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of breast pumps, and in particular to a breast pump control method, circuit control system and circuit control method. BACKGROUND

[0004] Postpartum mothers usually return to work a few weeks after giving birth. In order to provide breast milk to the baby in time, and to alleviate the discomfort such as swelling and pain caused by not being able to empty the breast in time in the case of excessive breast milk secretion, the mother can use a breast pump to extract breast milk and properly store the extracted breast milk.

[0005] In the prior art, a combination of a vacuum pump and a solenoid valve is commonly used for breast pumping. The breast pumping is achieved by controlling the vacuum pump. This method produces a lot of noise, which greatly affects the mood of the mother and has poor comfort. To solve this problem, the present application provides a breast pump control method, circuit control system and circuit control method.

[0006] SUMMARY

[0007] Therefore, in order to solve the problems in the prior art, the present application provides a breast pump control method in the first aspect, comprising:

[0008] A horn cover is provided, and the horn cover forms a first cavity, so that the first cavity can be closely attached to and at least partially contain the breast, forming a sealed cavity;

[0009] A flexible member is provided, and a first magnetic member is provided on the flexible member. The flexible member is at least partially communicated with the sealed cavity and forms a part of the cavity wall of the sealed cavity;

[0010] A second magnetic member is provided, and the second magnetic member is arranged opposite to the first magnetic member. The second magnetic member is used to control the movement of the first magnetic member, thereby driving the flexible member to deform, so that the sealed cavity forms a negative pressure to force the breast to secrete milk.

[0011] The second aspect provides a breast pump circuit control system for generating negative pressure by magnetic force, which is used for circuit control of the breast pump control method in any of the above aspects, comprising:

[0012] MCU control module, the MCU control module is used for receiving signals and sending signals;

[0013] Interactive control module, the interactive control module receives the key operation signal of the user, and sends the operation signal to the MCU control module;

[0014] Voltage and current control module, the voltage and current control module is used for receiving the control signal of the MCU control module, controlling the voltage and current size of the electromagnetic coil, reaching different suction force positions, and transmitting the suction force position signal back to the MCU control module.

[0015] The third aspect provides a circuit control method of a breast pump driven by magnetic force to generate negative pressure, which is used for controlling the circuit control system, and the method comprises the following steps:

[0016] The interactive control module judges whether there is a key operation instruction, if there is a key operation instruction, the operation instruction is sent to the MCU control module, and if there is no key operation instruction, the machine is automatically turned off;

[0017] The MCU control module receives the instruction sent by the interactive control module, judges the instruction and sends the instruction to the voltage and current control module;

[0018] After receiving the instruction, the voltage and current control module controls the voltage and current input into the electromagnetic coil, so that the size of the electromagnetic force is controlled to generate different sizes of suction force.

[0019] Beneficial effects: by using the second magnetic force piece to control the movement of the first magnetic force piece, the flexible piece is deformed, the closed cavity forms negative pressure to force the breast to secrete milk, compared with the traditional vacuum pump and electromagnetic valve, the noise generation source is eliminated, the noise is greatly reduced even to "zero" noise, the influence on the mood of the mother is eliminated, and the comfort is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0021] Fig. 1 is a schematic diagram of the overall structure of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0022] Fig. 2 is an exploded view of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0023] Fig. 3 is a schematic diagram of the assembly structure of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0024] Fig. 4 is a schematic diagram of the cross-sectional structure of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0025] Fig. 5 is an enlarged view of A in Fig. 4 according to the present application;

[0026] Fig. 6 is a schematic diagram of the connecting piece structure of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0027] Fig. 7 is a schematic diagram of the milk collection cover structure of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0028] Fig. 8 is a schematic diagram of the flexible piece structure of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0029] Fig. 9 is a schematic diagram of the internal structure of the flexible piece of the breast pump driven by magnetic force to generate negative pressure according to the present application;

[0030] Fig. 10 is a schematic diagram of the control system structure of the wearable breast pump driven by magnetic force to generate negative pressure according to the present application;

[0031] Fig. 11 is a flow chart of the control method of the wearable breast pump driven by magnetic force to generate negative pressure according to the present application;

[0032] In the figures: 1, first shell; 11, horn cover; 111, containing cavity; 112, milk collection cavity; 12, milk collection cover; 121, mounting portion; 122, protruding ring; 123, assembly groove; 124, through hole; 125, air groove; 126, first quick release structure; 127, liquid outlet; 2, second shell; 21, first half shell; 211, button; 212, charging port; 22, second half shell; 221, second quick release structure; 3, connecting piece; 31, mounting cylinder; 311, limiting piece; 32, first connecting pipe; 33, second connecting pipe; 34, flexible piece mounting structure; 341, first hook edge; 4, flexible piece; 4a, assembly portion; 4b, deformation portion; 41, first magnetic force piece; 42, second hook edge; 43, annular groove; 44, protrusion; 45, third magnetic force piece; 46, wave trough; 47, air hole; 5, second magnetic force piece; 6, control board; 7, power supply device; 8, one-way valve.

[0033] The realization of the object, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0034] With reference to the drawings and embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0035] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0036] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" throughout the text includes three solutions, for example, A and / or B includes A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0037] As shown in FIGS. 1-9, the present application provides a breast pump driven by magnetic force to generate negative pressure, comprising a horn cover 11, the horn cover 11 forms a containing cavity 111, the containing cavity 111 can be gaplessly attached and at least partially contain the breast, forming a closed cavity;

[0038] A flexible member 4 is provided with a first magnetic member 41, the flexible member 4 at least partially communicates with the closed cavity and forms part of the cavity wall of the closed cavity;

[0039] A second magnetic member 5 is provided opposite to the first magnetic member 41, the second magnetic member 5 drives the first magnetic member 41 to move by magnetic force and drives the flexible member 4 to deform, so that the closed cavity generates negative pressure.

[0040] In the present embodiment, the inner wall of the horn cover 11 can be attached to the breast of the user, and when the breast of the user is attached to the inner wall of the horn cover 11, the closed cavity formed by the horn cover 11 and the flexible member 4 is in a sealed state;

[0041] The first magnetic force member 41 is arranged opposite to the second magnetic force member 5, and the positions of the first magnetic force member 41 and the second magnetic force member 5 can be exchanged. It should be noted that the magnetic force member herein not only refers to a component with magnetic force, but also refers to a material that can be guided to move by magnetic force.

[0042] In other embodiments, the first magnetic force member 41 includes but is not limited to a permanent magnet, and the shape of the first magnetic force member 41 can be annular, block-shaped or strip-shaped. The second magnetic force member 5 is an electromagnetic coil, and the shape of the second magnetic force member 5 is annular, block-shaped or strip-shaped.

[0043] In operation, first, the inner wall of the horn cover 11 is attached to the breast of the user, and then the second magnetic force member 5 is started to generate a magnetic force to drive the first magnetic force member 41 to move. That is, when the magnetic poles of the second magnetic force member 5 and the first magnetic force member 41 are different, the first magnetic force member 41 and the second magnetic force member 5 generate magnetic attraction force. Under the action of the magnetic attraction force, the flexible member 4 is deformed. At this time, a negative pressure is generated inside the sealed cavity. At this time, in cooperation with the horn cover 11, a pressure is generated on the breast of the user to squeeze out the breast milk. When the magnetic poles of the second magnetic force member 5 and the first magnetic force member 41 are the same, the first magnetic force member 41 and the second magnetic force member 5 generate repulsion force. At this time, the flexible member 4 is reset, and the negative pressure inside the sealed cavity disappears.

[0044] The application changes the traditional vacuum pump and electromagnetic valve breast pumping form to an electromagnetic breast pumping form. The weight of the breast pump is greatly reduced, and the breast pump is easy to carry. At the same time, the vacuum pump and the electromagnetic valve are cancelled, the source of noise is eliminated, the noise is greatly reduced or even reaches "zero" noise, the influence on the mood of the mother is eliminated, and the comfort is improved.

[0045] In addition, the application cancels the use of magnetic attraction of components such as vacuum pumps and electromagnetic valves, reduces the assembly components (vacuum pumps, electromagnetic valves, sealing rings and other parts), and effectively reduces the cost.

[0046] In one embodiment, at least one third magnetic force member 45 is further arranged inside the flexible member 4, and the third magnetic force member 45 surrounds the periphery of the first magnetic force member 41.

[0047] In this embodiment, the third magnetic force member 45 is embedded in the inside of the flexible member 4, which can further improve the magnetic property, thereby improving the efficiency and reducing the energy loss. The third magnetic force member 45 is a neodymium magnet.

[0048] The third magnetic force member 45 is arranged in a ring shape. When the number of the third magnetic force members 45 is two or more, the diameters of the third magnetic force members 45 increase from inside to outside along the radial direction of the flexible member 4.

[0049] In one embodiment, the closed cavity is communicated with a milk collection component for collecting and storing the breast milk.

[0050] In the present embodiment, any container that can collect and store the breast milk can be regarded as the milk collection component, such as a feeding bottle or a bowl-shaped container.

[0051] In one embodiment, the milk collection component comprises a milk collection cover 12, which forms a first shell 1 together with the horn cover 11, and the first shell 1 has a milk collection cavity 112 inside, and the closed end of the horn cover 11 extends into the milk collection cavity 112.

[0052] In the present embodiment, the connection between the horn cover 11 and the milk collection cover 12 is a sealed connection, the milk collection cover 12 is semi-spherical, and the opening edge of the milk collection cover 12 is further provided with a liquid outlet 127 for pouring out the breast milk after the milk pumping is completed.

[0053] In one embodiment, a second shell 2 is further included, and the second magnetic force member 5 is fixed to the second shell 2, and the second magnetic force member 5 can be alternately switched between the S pole and the N pole.

[0054] In the present embodiment, by alternately switching the second magnetic force member 5 between the S pole and the N pole, the flexible member 4 can be driven to realize the reciprocating motion of deformation and resetting, effectively forming the stable "sucking" and "releasing" functions, so that the breast pump can realize the continuous and stable milk pumping process.

[0055] Specifically, taking the first magnetic force member 41 as the S pole as an example, when the magnetic pole of the second magnetic force member 5 is the N pole, the first magnetic force member 41 and the second magnetic force member 5 generate magnetic attraction force, so that the flexible member 4 is deformed, and a negative pressure is generated inside the sealed cavity, realizing the milking operation, when the magnetic pole of the second magnetic force member 5 is the S pole, the first magnetic force member 41 and the second magnetic force member 5 generate repulsion force, which drives the flexible member 4 to reset, and the negative pressure inside the cavity disappears.

[0056] The vacuum pump has a delay in generating negative pressure, and the efficiency can only be improved by the original material resilience, and the air at the flexible member 4 needs to be pumped out to correspondingly generate negative pressure at the human body, while the magnetic attraction method can instantaneously change the direction and strength of the magnetic field, and the repulsion force can drive the flexible member 4 to quickly reset, which can reduce the delay and greatly improve the efficiency of milk pumping.

[0057] In one embodiment, a connecting member 3 is further included, and the horn cover 11 and the flexible member 4 form a closed cavity through the connecting member 3, the connecting member 3 is a hollow structure, one end of the connecting member 3 is provided with an opening, and the closed end of the horn cover 11 is connected to the opening end of the connecting member 3.

[0058] In this embodiment, the connecting piece 3 includes but is not limited to a three-way valve, and the connection between the flexible piece 4 and the connecting piece 3 is detachable and sealed.

[0059] In one embodiment, the connecting piece 3 is also in communication with the milk collection component, and a one-way valve 8 is arranged between the connecting piece 3 and the milk collection component.

[0060] In this embodiment, by arranging the one-way valve 8, when negative pressure is generated in the sealed cavity, the backflow of the inner breast milk of the milk collection component to the sealed cavity can be prevented, wherein the one-way valve 8 is a duckbill valve, specifically, when negative pressure is generated in the sealed cavity, the internal pressure of the sealed cavity is less than the external pressure, which causes the one-way valve 8 to deform, so that the one-way valve 8 is closed; at the same time, after the one-way valve 8 is closed, gas leakage can also be prevented, the air tightness is increased, and the breast pumping effect is improved; when the negative pressure disappears, the one-way valve 8 restores to open, and the expressed breast milk flows from the one-way valve 8 into the milk collection cover 12.

[0061] In one embodiment, the connecting piece 3 is provided with a flexible piece mounting structure 34, the inside of the flexible piece mounting structure 34 is in communication with the connecting piece 3, and the flexible piece 4 is arranged in the flexible piece mounting structure 34.

[0062] In this embodiment, the flexible piece mounting structure 34 is a suction bowl, and the flexible piece mounting structure 34 includes structures of different shapes, such as circular, square or planar structures, as long as the fixation of the flexible piece 4 can be achieved, which are included in the scope of the flexible piece mounting structure 34 in this case, and the edge of the flexible piece 4 and the edge of the flexible piece mounting structure 34 are sealed or interference connected, so that the inside of the flexible piece mounting structure 34 is in a relatively sealed state, and optionally, the shape of the flexible piece 4 matches the flexible piece mounting structure 34.

[0063] The bottom of the flexible piece mounting structure 34 is provided with an air hole 47, and the inside of the flexible piece mounting structure 34 is in communication with the connecting piece 3 through the air hole 47.

[0064] In one embodiment, the flexible piece mounting structure 34 and the flexible piece 4 are mutually attached.

[0065] In this embodiment, by the mutual attachment of the flexible piece mounting structure 34 and the flexible piece 4, there is no gap between the flexible piece mounting structure 34 and the flexible piece 4, and when the breast pumping operation is performed, if the breast milk is accidentally sucked into the flexible piece mounting structure 34, the breast milk sucked into the flexible piece mounting structure 34 can be discharged in time when the flexible piece 4 rebounds, so that the breast milk is not left in the flexible piece mounting structure 34.

[0066] In one embodiment, the inner wall of the milk collecting cover 12 is provided with a convex ring 122, the milk collecting cover 12 is connected with the flexible piece mounting structure 34 through the convex ring 122, the convex ring 122 extends from the opening of the flexible piece mounting structure 34 to the inside of the flexible piece mounting structure 34, and the convex ring 122 and the flexible piece mounting structure 34 clamp the flexible piece 4.

[0067] In this embodiment, the shape of the convex ring 122 is consistent with the bowl opening shape of the flexible piece mounting structure 34, one side of the convex ring 122 forms an assembly groove 123 with the inner wall of the milk collecting cover 12, when the flexible piece 4 is mounted on the flexible piece mounting structure 34, the flexible piece mounting structure 34 with the mounted flexible piece 4 is inserted into the assembly groove 123, at this time, the convex ring 122 is inserted into the flexible piece mounting structure 34, and the assembly is completed, and the convex ring 122 also has a positioning effect at this time.

[0068] In addition, when the distance between the outer side wall of the convex ring 122 and the inner wall of the flexible piece mounting structure 34 is greater than the thickness of the flexible piece 4, if the flexible piece 4 deforms, the convex ring 122 can improve the connection strength of the connection between the flexible piece 4 and the flexible piece mounting structure 34, and prevent the sealing performance of the connection from being reduced due to the deformation of the flexible piece 4, when the distance between the outer side wall of the convex ring 122 and the inner wall of the flexible piece mounting structure 34 is slightly smaller than the thickness of the flexible piece 4, in addition to increasing the connection strength of the connection between the flexible piece 4 and the flexible piece mounting structure 34, the convex ring 122 and the flexible piece mounting structure 34 can clamp the flexible piece 4, form an interference fit, and make the flexible piece 4 tightly fit with the inner wall of the flexible piece mounting structure 34, and further improve the sealing effect.

[0069] In one embodiment, the milk collecting cover 12 is provided with a mounting portion 121, the mounting portion 121 is provided as a clamping groove or a magnetic attraction structure, and the milk collecting cover 12 is detachably connected with the second shell 2 through the mounting portion 121.

[0070] In one embodiment, the surface of the milk collecting cover 12 is provided with a through hole 124, and the through hole 124 communicates with the cavity formed by the milk collecting cover 12 and the flexible piece 4.

[0071] In this embodiment, the through hole 124 can make the air pressure in the cavity formed by the milk collecting cover 12 and the flexible piece 4 consistent with the atmospheric pressure, so that the flexible piece 4 can reset.

[0072] In one embodiment, the surface of the milk collecting cover 12 is provided with an air groove 125, and the air groove 125 communicates with the through hole 124.

[0073] In this embodiment, when the through hole 124 is arranged on the mounting portion 121, the inside of the milk collecting cover 12 can still communicate with the outside through the air groove 125, so that the air pressure in the cavity formed by the milk collecting cover 12 and the flexible piece 4 is consistent with the atmospheric pressure and is not affected by the second shell 2.

[0074] In one embodiment, the second magnetic force 5 is controlled by a control mechanism arranged in the second shell 2.

[0075] In this embodiment, the control mechanism can control the magnetic pole of the second magnetic force 5, thereby realizing the effect of continuously changing the second magnetic force 5 between the S pole and the N pole.

[0076] In one embodiment, the control mechanism includes a control board 6 and a power supply device 7, the control board 6 is electrically connected with the second magnetic force 5, and the power supply device 7 is electrically connected with the control board 6.

[0077] In this embodiment, the power supply device 7 is a battery, and the number of batteries is one, and in other embodiments, the number of batteries can be two or more, and the power supply device 7 can supply power to the second magnetic force 5 and the control board 6.

[0078] Specifically, when supplying power to the second magnetic force 5, the current will generate a magnetic field for the second magnetic force 5, thereby generating a magnetic pole, and the direction and size of the current can be controlled through the control board 6, thereby controlling the magnetic pole switching of the second magnetic force 5 and the strength of the magnetic field.

[0079] More specifically, taking the S pole of the first magnetic force 41 as an example, when the current direction makes the magnetic pole of the second magnetic force 5 an N pole, the first magnetic force 41 and the second magnetic force 5 generate magnetic attraction force, so that the inside of the sealed cavity generates negative pressure, realizing the milking operation, when the current direction makes the magnetic pole of the second magnetic force 5 an S pole, the first magnetic force 41 and the second magnetic force 5 generate repulsion force, and push the flexible piece 4 to reset in the direction away from the second shell 2, and the negative pressure inside the cavity disappears.

[0080] Among them, by controlling the size of the current, and the current can be accurately controlled, thereby achieving the effect of accurately controlling the size of the magnetic field strength and accurately controlling the size of the suction force, and finally realizing the adjustment of the negative pressure, effectively improving the comfort.

[0081] In one embodiment, the second shell 2 includes a first half shell 21 and a second half shell 22, the first half shell 21 is detachably connected with the second half shell 22, and the lower end of the second half shell 22 is provided with a second quick release structure 221, and the lower end of the second half shell 22 is detachably installed on the mounting portion 121 through the quick release structure.

[0082] In this embodiment, by detachably connecting the first half shell 21 with the second half shell 22 and detachably installing the lower end of the second half shell 22 at the mounting portion 121, the assembly and disassembly of the breast pump are convenient and fast.

[0083] The mounting portion 121 is provided with a first quick release structure 126 corresponding to a second quick release structure 221. When the first quick release structure 126 is a clamping hole, the second quick release structure 221 can be a buckle. Alternatively, the first quick release structure 126 and the second quick release structure 221 can both be magnetic pieces.

[0084] In one embodiment, the first half shell 21 is provided with a plurality of keys 211.

[0085] In this embodiment, different keys 211 can send different control instructions to the controller to achieve different functions.

[0086] Specifically, the keys 211 include a power key, a gear key, a pause key, and a mode switching key. The power key is used to control the start and stop of the breast pump. The gear key includes a "+" key for increasing the gear and a "-" key for decreasing the gear. The pause key is used to control the pause of the breast pump. The breast pump has a massage mode, a pumping mode, a stimulation mode, and an automatic mode. The mode switching key is used to switch between the four modes of the breast pump.

[0087] In one embodiment, the milk collection cover 12 is transparent, and the outer surface of the milk collection cover 12 is provided with a plurality of scale lines.

[0088] In this embodiment, the milk collection cover 12 is transparent, so that the collection of breast milk and the internal cleaning can be observed at any time, facilitating timely cleaning and preventing bacterial growth.

[0089] In addition, the outer surface of the milk collection cover 12 is provided with a plurality of scale lines and different markings, which can measure the amount of expressed breast milk.

[0090] In one embodiment, the first half shell 21 is provided with a display screen, and the display screen is electrically connected to the control panel 6.

[0091] In this embodiment, the display screen can display pressure, power, charging status, time, and gear information.

[0092] In one embodiment, the connecting piece 3 includes a mounting cylinder 31, a first connecting pipe 32, and a second connecting pipe 33. One end of the mounting cylinder 31 is provided with an opening, and the opening end of the mounting cylinder 31 is detachably connected to the closed end of the horn cover 11. The mounting cylinder 31 is provided with a gas hole 47 communicating with the flexible piece mounting structure 34 through the first connecting pipe 32 on one side, and is communicated with the milk collection cover 12 through the second connecting pipe 33 on the other side. The one-way valve 8 is sleeved on the end of the second connecting pipe 33 away from the mounting cylinder 31, and the first connecting pipe 32 is located above the second connecting pipe 33.

[0093] In this embodiment, the connection between the open end of the mounting cylinder 31 and the closed end of the horn cover 11 is sealed or interference fit, which realizes the relative sealing of the connection, and the cross-sectional shape of the mounting cylinder 31 is circular in this embodiment, and can be polygonal and other irregular shapes in other embodiments. The second connecting pipe 33 is provided, which can flow the breast milk in the mounting cylinder 31 to the milk collecting cover 12 through the second connecting pipe 33.

[0094] In one embodiment, the connecting piece 3 is provided with a limiting piece 311, and the connecting piece 3 is limited from moving relative to the milk collecting part by the limiting piece 311.

[0095] In this embodiment, the limiting piece 311 is in the shape of a semicircular sheet, and the number is at least two, which are respectively located on both sides of the connecting piece 3. When the connecting piece 3 is assembled with the milk collecting cover 12, the limiting piece 311 can limit and position the connecting piece 3.

[0096] In one embodiment, the outer edge of the opening of the flexible piece mounting structure 34 is provided with a first hook edge 341, and the bowl wall of the flexible piece mounting structure 34 and the first hook edge 341 form a hook structure, and the upper end of the hook structure is inclined toward the bottom of the milk collecting cover 12. The outer edge of the flexible piece 4 is bent downward to form a ring groove 43, and the edge of the flexible piece 4 is provided with a second hook edge 42 extending into the ring groove 43. When the first hook edge 341 is inserted into the ring groove 43, the first hook edge 341 and the second hook edge 42 are buckled.

[0097] In this embodiment, the second hook edge 42 is provided at the opening of the ring groove 43, which forms a closed end. When installing, only the first hook edge 341 is inserted into the ring groove 43, and the second hook edge 42 can be buckled with the first hook edge 341 and not easy to be separated. Under the action of the self elastic force of the flexible piece 4 and the inclined hook structure, the flexible piece 4 is tensioned, so that the connection between the flexible piece mounting structure 34 and the flexible piece 4 is tightly connected, thereby achieving a better sealing effect.

[0098] The embodiment of the application provides a flexible film for generating negative pressure by magnetic driving, which is the flexible piece 4 in the breast pump driven by magnetic force to generate negative pressure, comprising: an assembly part 4a for positioning and fixing the film body; a deformation part 4b integrally formed with the assembly part 4a, and the connection between the deformation part 4b and the assembly part 4a is a sealed connection, and the assembly part 4a is arranged at the edge of the deformation part 4b.

[0099] In the embodiment, the shape of the deformation part 4b is a circular sheet shape, and the shape of the deformation part 4b can also be a polygonal shape and other irregular shapes. The assembly part 4a is annular and has a shape matching the deformation part 4b. The deformation part 4b and the assembly part 4a are integrally formed by injection molding. The deformation part 4b and the assembly part 4a form a bowl-shaped structure. The first magnetic force piece 41 is block-shaped and located at the center of the deformation part 4b. The material of the assembly part 4a and the deformation part 4b is latex material. The assembly part 4a is provided with a groove structure, which is an annular groove 43. The membrane is installed on the flexible member mounting structure 34 through the groove structure, so that the flexible membrane and the suction bowl can be quickly buckled and connected, and the assembly is convenient. The groove structure is located on the outside of the deformation part 4b, and the opening of the groove is downward.

[0100] The second hooking edge 42 is provided on the inner wall of the opening of the annular groove 43 and protrudes towards the deformation part 4b. The second hooking edge 42 is located on the side wall of the annular groove 43 away from the deformation part 4b.

[0101] By embedding the first magnetic force piece 41 in the deformation part 4b, the deformation part 4b can be driven by magnetic force to achieve the effect of deformation, without using a vacuum pump or mechanical structure for driving, so as to prevent noise from being generated from the source and affecting the user's mood.

[0102] In one embodiment, the third magnetic force piece 45 is embedded in the deformation part 4b and located at the periphery of the first magnetic force piece 41.

[0103] In the embodiment, when there are multiple third magnetic force pieces 45, the diameters of the third magnetic force pieces 45 increase from inside to outside along the radial direction of the deformation part 4b.

[0104] In one embodiment, the cross-sectional shape of the deformation part 4b is wavy.

[0105] In the embodiment, by providing the deformation part 4b in a wavy shape, the resilience of the deformation part 4b can be increased. The third magnetic force piece 45 is arranged in the wave trough 46 of the deformation part 4b. Optionally, the cross section of the third magnetic force piece 45 is arranged in an arc shape, so that the third magnetic force piece 45 is adapted to the wave trough 46 of the deformation part 4b.

[0106] The forming process of the assembly part 4a of the flexible membrane (i.e., the flexible member 4) is as follows:

[0107] First, an integrally formed flexible membrane assembly part 4a is obtained by injection molding.

[0108] Then, the first magnetic force piece 41 assembly part 4a and the third magnetic force piece 45 assembly part 4a are inlaid in the deformation part 4b assembly part 4a: the first magnetic force piece 41 assembly part 4a and the third magnetic force piece 45 assembly part 4a are formed in the suction cup diaphragm by cupping, at this time the neodymium alloy at the flexible film assembly part 4a does not produce magnetism, after cupping forming, the flexible film assembly part 4a (with the first magnetic force piece 41 assembly part 4a and the third magnetic force piece 45 assembly part 4a inside) is placed in the fixture fixed position and is not free to move, the suction cup diaphragm assembly (with the first magnetic force piece 41 assembly part 4a and the third magnetic force piece 45 assembly part 4a inside) placed in the fixture is placed into the magnetizing machine for magnetizing, then the flexible film assembly part 4a of the application is obtained.

[0109] The specific steps are as follows,

[0110] S1, clean the surface of the neodymium alloy (not magnetized) of oil and dust;

[0111] S2, the surface of the neodymium alloy is coated with a treatment agent that can adhere to silica gel, and subsequent drying treatment needs to be carried out according to the instructions of the treatment agent;

[0112] S3, after the treatment is completed, the silica gel base is placed in the mold for cupping;

[0113] S4, the base assembly after cupping is cleaned to remove the oil and dust on the surface;

[0114] S5, the treatment agent is coated and dried according to the instructions of the treatment agent;

[0115] S6, the treated base assembly is placed in the mold again for cupping with the flexible film to form a semi-finished flexible film (with neodymium alloy inside);

[0116] S7, the obtained semi-finished flexible film (with neodymium alloy inside) is placed in the magnetizing jig in order, so that the semi-finished suction cup (with neodymium alloy inside) does not move randomly during magnetizing, and then it is placed in the magnetizing machine for magnetizing, so that the flexible film with magnetism is obtained.

[0117] In one embodiment, the flexible member 4 is provided with a protrusion 44, and the protrusion 44 is located on the side wall of the assembly part 4a away from the annular groove 43.

[0118] In this embodiment, after the convex ring 122 is assembled with the suction cup, the protrusion 44 and the side wall of the convex ring 122 can also form an interference fit to improve the sealing performance of the connection.

[0119] In one embodiment, the first magnetic force piece 41 and the third magnetic force piece 45 are both neodymium magnets.

[0120] In this embodiment, the neodymium magnet is obtained after the neodymium alloy is magnetized.

[0121] The application provides a magnetic driving system, which is composed of components in the above-mentioned embodiment of the breast pump driven by magnetic force to generate negative pressure, and comprises:

[0122] A flexible member 4;

[0123] A flexible member mounting structure 34;

[0124] The flexible member 4 is arranged on the flexible member mounting structure 34, and the connection between the flexible member 4 and the flexible member mounting structure 34 is sealed connection; and the flexible member mounting structure 34 is provided with an air hole 47;

[0125] A first magnetic force member 41 arranged in the flexible member 4;

[0126] A second magnetic force member 5 arranged opposite to the first magnetic force member 41, and the second magnetic force member 5 can be alternately switched between S pole and N pole.

[0127] The application changes the traditional breast pump with a vacuum pump and a solenoid valve into an electromagnetic breast pump, and drives the flexible member to deform by alternately switching the second magnetic force member between S pole and N pole, so that negative pressure is generated to perform breast pumping. The vacuum pump and the solenoid valve are cancelled, the source of noise is eliminated, the noise is greatly reduced or even reaches "zero" noise, the influence on the mood of the mother is eliminated, and the comfort is improved.

[0128] In one embodiment, the magnetic force of the first magnetic force member 41 and the second magnetic force member 5 (i.e. the electromagnetic coil) can be calculated according to the design requirement, and the specific method is as follows:

[0129] The pressure is equal to the force area, i.e. P=F / S, F=P*S;

[0130] It can be known from the conversion between air pressure and force that 1 pa=1 N / m2, and in addition, 1 mmHg=133.3223684 Pa;

[0131] Therefore, the force required for the flexible member 4 of the flexible member mounting structure 34 to be pulled upward can be obtained by substituting the area of the flexible member mounting structure 34 into the formula.

[0132] The electromagnetic attraction force F can be obtained from the Maxwell electromagnetic attraction force calculation formula,

[0133] Formula one: electromagnetic attraction force F=B 2 *S / 2*μ 0 =φ2 / 2*μ 0 *S

[0134] In the formula, B is the magnetic induction intensity (T), S is the magnetic path cross-sectional area (m 2), φ is the magnetic flux (Wb) through the cross section, μ 0 is the vacuum permeability (4π*10^-7 Wb / A·m).

[0135] Without considering the leakage loss and the loss of the connecting air gap, only considering the stroke of the flexible piece mounting structure 34 deformed and active as the main air gap, the magnetic induction intensity B at the built-in magnetic component of the flexible piece mounting structure 34 is:

[0136] Formula two: B=N*U*μ 0 / R*g=N*I*μ 0 / g

[0137] In the formula, N is the number of turns; I is the current intensity (A); U is the power voltage (V); R is the winding coil resistance (Ω); and g is the air gap width (m) (i.e., the distance from the built-in magnetic component of the flexible piece mounting structure 34 to the cross section of the coil).

[0138] Formula two is substituted into formula one to obtain:

[0139] Formula three: Electromagnetic attraction F=(N*I)2*μ 0 *S / 2*g2

[0140] Through the above design, the area of the first magnetic force piece 41 can be determined, which is the same as the cross-sectional area S of the coil magnetic circuit, and the distance g from the first magnetic force piece 41 to the cross section of the second magnetic force piece 5 can also be calculated. The number of turns N and the coil current I can be used as debugging values, N*I is proportional to F, so that F is greater than the upward force of the flexible piece 4, that is, the required negative pressure demand can be met.

[0141] The embodiment of the application provides a control method of the breast pump driven by the magnetic force to generate the negative pressure in the above-mentioned embodiment, which comprises the following steps:

[0142] S1, a horn cover 11 is arranged, so that the horn cover 11 forms a first cavity, so that the first cavity can be closely attached to and at least partially accommodate the breast to form a sealed cavity;

[0143] S2, a flexible piece 4 is arranged, the flexible piece 4 is provided with a first magnetic force piece 41, and the flexible piece 4 is at least partially communicated with the part of the cavity wall of the sealed cavity;

[0144] S3, a second magnetic force piece 5 is arranged, the second magnetic force piece 5 is arranged opposite to the first magnetic force piece 41, the second magnetic force piece 5 is used to control the movement of the first magnetic force piece 41, and then the flexible piece 4 is deformed, so that the sealed cavity forms the negative pressure to force the breast to lactate.

[0145] In this embodiment, by changing the traditional vacuum pump and electromagnetic valve breast pumping form to electromagnetic breast pumping form, not only the weight of the breast pump is greatly reduced, it is easier to carry, at the same time, the vacuum pump and electromagnetic valve are cancelled, the second magnetic piece 5 is used to control the movement of the first magnetic piece 41, and then the flexible piece 4 is deformed, so that the closed cavity forms negative pressure to force the breast to lactate, eliminating the source of noise, greatly reducing the noise even to "zero" noise, eliminating the influence on the mother's emotion, and improving the comfort.

[0146] In one embodiment, in the step of arranging the second magnetic piece 5 opposite to the first magnetic piece 41, using the second magnetic piece 5 to control the movement of the first magnetic piece 41, and then driving the flexible piece 4 to deform, the following steps are further included:

[0147] The second magnetic piece 5 is controlled to alternate between S pole and N pole, so that the first magnetic piece 41 drives the flexible piece 4 to reciprocate.

[0148] In one embodiment, in the step of arranging a horn cover 11 to form a first cavity, so that the first cavity can accommodate and fit the breast without gap, forming a closed cavity, the following steps are further included:

[0149] The horn cover 11 is connected to a connecting piece 3, the connecting piece 3 is hollow inside, one end of the connecting piece 3 is provided with an opening, and the closed end of the horn cover 11 is connected to the opening end of the connecting piece 3;

[0150] A suction bowl is arranged in the connecting piece 3, and the inside of the suction bowl is communicated with the connecting piece 3;

[0151] The flexible piece 4 is arranged in the suction bowl, and the horn cover 11 and the flexible piece 4 form a closed cavity through the connecting piece 3.

[0152] In one embodiment, in the step of arranging the second magnetic piece 5 opposite to the first magnetic piece 41, using the second magnetic piece 5 to control the movement of the first magnetic piece 41, and then driving the flexible piece 4 to deform, so that when the horn cover 11 fits the breast, the closed cavity forms negative pressure to force the breast to lactate through the deformation of the flexible piece 4,

[0153] Further including the following steps:

[0154] The second magnetic piece 5 is fixed in the second shell 2, so that the second magnetic piece 5 is connected to the control mechanism, and the control mechanism is arranged in the second shell 2.

[0155] As shown in FIG. 10, the application provides a kind of breast pumping circuit control system driven by magnetic force to generate negative pressure, which is used for the circuit control of the breast pumping control method driven by magnetic force to generate negative pressure in any of the above, including:

[0156] The MCU control module is configured to receive signals and send signals.

[0157] The interactive control module receives a key 211 operation signal of a user and sends the operation signal to the MCU control module.

[0158] The voltage and current control module is configured to receive a control signal of the MCU control module, control the voltage and current of the electromagnetic coil, achieve different suction force levels, and send a suction force level signal back to the MCU control module.

[0159] In the embodiment, after the user performs the key 211 operation, the interactive control module sends a corresponding key 211 signal to the MCU control module. The MCU control module is configured to receive a signal of the interactive control module and send a control signal to the voltage and current control module. After receiving the control signal of the MCU control module, the voltage and current control module controls the voltage and current of the electromagnetic coil according to an instruction of the signal, thereby controlling the electromagnetic force and the deformation degree of the flexible member 4, and further controlling different suction forces.

[0160] In an embodiment, the power detection module is further configured to monitor the power of the power supply device 7 in real time and send data information to the MCU control module.

[0161] In the embodiment, the power detection module can monitor the power of the battery in the breast pump in real time and transmit the monitoring data to the MCU control module.

[0162] In an embodiment, the charging detection module is further configured to detect an external charger and feed back to the MCU control module.

[0163] In the embodiment, when the battery of the breast pump is out of power, if the battery is charged, the charging detection module detects the charger and monitors the charging state in real time.

[0164] In an embodiment, the display module is further configured to receive a signal sent by the voltage and current control module, the power detection module, and the charging detection module to the MCU control module.

[0165] In the embodiment, after the voltage and current control module, the power detection module, and the charging detection module send the signal to the MCU control module, the MCU control module sends the signal to the display module. The display module displays the data information on the display screen.

[0166] As shown in FIG. 11, the embodiment of the present application provides a kind of circuit control method of negative pressure generation of breast pump driven by magnetic force, for controlling the circuit control system of any one of the above, method includes:

[0167] S1: boot, system initialization;

[0168] S2: whether access external charger is detected by charging detection module, if access external charger, charging state signal is transmitted to display module display;

[0169] S3: interactive control module judges whether there is key 211 operation instruction, if there is key 211 operation instruction, operation instruction is sent to MCU control module, if there is no key 211 operation instruction, automatic shutdown;

[0170] S4: MCU control module receives the instruction issued by interactive control module, judges the instruction and sends to voltage and current control module;

[0171] S5: voltage and current control module receives instruction, controls the voltage and current of electromagnetic coil, thereby the size of electromagnetic force is controlled to produce different size suction.

[0172] In the embodiment, before operation, the system of breast pump needs to be initialized first, after initialization, user carries out key 211 operation, after interactive control module judges that there is key 211 operation instruction, power button is pressed, system is opened, by such setting, it can prevent that breast pump starts due to false touch, after system is opened, key 211 control can be carried out, the instruction corresponding to interactive control module key 211 is sent to MCU control module, then the instruction is sent to voltage and current control module by MCU control module, voltage and current control module adjusts the voltage and current of electromagnetic coil according to instruction, controls the size of electromagnetic force, thereby the deformation degree of flexible piece 4 is controlled, different suction is generated, and different suction gear is fed back to display module and is displayed;

[0173] Wherein, after system is opened, if power key is pressed again, breast pump is shut down.

[0174] In one embodiment, key 211 operation instruction includes mode switching key instruction, gear increasing instruction, gear reducing instruction and pause instruction.

[0175] In the embodiment, mode switching press instruction, gear increasing instruction, gear reducing instruction and pause instruction correspond to mode switching key, " +" key of improving gear, "-" key of reducing gear and pause key on breast pump, corresponding key is pressed, and corresponding instruction can be issued.

[0176] In one embodiment, after the breast pump starts to work, the method further comprises that the power detection module judges whether the voltage is lower than the minimum working voltage, if lower than the minimum working voltage, the breast pump automatically shuts down, if higher than the minimum working voltage, the breast pump continues to work.

[0177] In this embodiment, the minimum working voltage is 3.3V, if lower than 3.3V, the breast pump automatically shuts down, if higher than 3.3V, the breast pump continues to work.

[0178] In one embodiment, after the breast pump starts to work, the method further comprises that the MCU control module judges whether the set continuous working time is reached, if reached, the breast pump automatically shuts down, if not reached, the breast pump continues to work.

[0179] In this embodiment, the set continuous working time is 20 minutes, if the continuous working reaches 20 minutes, the breast pump automatically shuts down, if the continuous working does not reach 20 minutes, the breast pump continues to work.

[0180] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made under the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A breast pump control method, characterized by, The method comprises the following steps: a horn cover is arranged to form a first cavity, so that the first cavity can be closely fitted and at least partially accommodated with the breast, forming a closed cavity; a flexible member is arranged, and a first magnetic member is arranged on the flexible member, and the flexible member is at least partially communicated with the closed cavity and forms a part of the cavity wall of the closed cavity; a second magnetic member is arranged opposite to the first magnetic member, and the second magnetic member is used to control the movement of the first magnetic member, so that the flexible member is deformed, and the closed cavity forms a negative pressure to force the breast to lactate.

2. The breast pump control method according to claim 1, wherein in the step of arranging the second magnetic member opposite to the first magnetic member, and using the second magnetic member to control the movement of the first magnetic member, so that the flexible member is deformed, the method further comprises the following steps: controlling the second magnetic member to alternately change between S pole and N pole, so that the first magnetic member drives the flexible member to reciprocate.

3. The breast pump control method according to claim 1, wherein in the step of arranging a horn cover to form a first cavity, so that the first cavity can accommodate and closely fit the breast, forming a closed cavity, the method further comprises the following steps: a connecting member is connected to the horn cover, the connecting member is hollow inside, one end of the connecting member is provided with an opening, and the closed end of the horn cover is connected to the opening end of the connecting member; a flexible member mounting structure is arranged in the connecting member, and the inside of the flexible member mounting structure is communicated with the connecting member; the flexible member is arranged in the flexible member mounting structure, and the horn cover and the flexible member form the closed cavity through the connecting member.

4. The breast pump control method according to claim 3, wherein in the step of arranging the second magnetic member opposite to the first magnetic member, and using the second magnetic member to control the movement of the first magnetic member, so that the flexible member is deformed, and when the horn cover closely fits the breast, the closed cavity forms a negative pressure through the deformation of the flexible member to force the breast to lactate, the method further comprises the following steps: the second magnetic member is fixed in a second housing, and the second magnetic member is connected to a control mechanism arranged in the second housing. The connecting member is connected with a milk collecting part.

6. The breast pump control method according to claim 5, wherein the milk collecting part comprises a milk collecting cover, and the milk collecting cover and the horn cover jointly form a milk collecting cavity; the connecting member comprises a mounting cylinder, a first connecting pipe and a second connecting pipe, and an opening is formed in one end of the mounting cylinder; 5. The breast pump control method of claim 4, wherein, the opening end of the mounting cylinder is detachably connected to the closed end of the horn cover, one side of the mounting cylinder is provided with the first connecting pipe to communicate with the flexible member mounting structure, and the other side is provided with the second connecting pipe to communicate with the milk collecting cover. a one-way valve is sleeved on the other end of the second connecting pipe. The outer edge of the flexible member is folded along the edge of the flexible member mounting structure to form a sealed connection. ​ ​ 7. The breast pump control method of claim 6, wherein, ​ 8. The breast pump control method of claim 6, wherein, ​ 9. The breast pump control method of claim 8, wherein, an outer edge of the opening of the flexible member mounting structure is provided with a first hook edge, the bowl wall of the flexible member mounting structure and the first hook edge form a hook structure, and an upper end of the hook structure is inclined toward the bottom of the breast shield, an outer edge of the flexible member is bent downward to form a ring-shaped groove, and the outer edge of the flexible member is provided with a second hook edge extending into the ring-shaped groove, and the first hook edge is buckled with the second hook edge when the first hook edge is inserted into the ring-shaped groove.

10. The breast pump control method of claim 6, wherein, The inner wall of the breast shield is provided with a convex ring for abutting against the flexible member.

11. The breast pump control method of claim 10, wherein, The breast shield is connected with the flexible member mounting structure through the convex ring, the convex ring extends from the opening of the flexible member mounting structure into the flexible member mounting structure, and the convex ring and the flexible member mounting structure clamp the flexible member.

12. The breast pump control method of claim 6, wherein, The outer wall of the breast shield is provided with a mounting portion, and the second shell is detachably mounted on the mounting portion.

13. The breast pump control method of claim 6, wherein, A plurality of keys are arranged on the second shell, and the keys are used at least to control the deformation of the flexible member under the action of the magnetic force.

14. A breast pump circuit control system, comprising: A circuit for controlling the breast pump control method of any one of claims 1-13, comprising: an MCU control module for receiving signals and sending signals; an interactive control module for receiving a key operation signal of a user and sending the operation signal to the MCU control module; a voltage and current control module for receiving a control signal of the MCU control module, controlling the voltage and current of the electromagnetic coil, achieving different suction force levels, and sending a suction force level signal back to the MCU control module.

15. The control system of claim 14, wherein, Further comprising an electric quantity detection module for real-time monitoring of the electric quantity of a power supply device and sending data information to the MCU control module; a charging detection module for detecting an external charger and feeding back to the MCU control module; a display module for receiving signals sent by the voltage and current control module, the electric quantity detection module, and the charging detection module to the MCU control module.

16. A breast pump circuit control method, characterized by, A method for controlling the control system of claim 14, comprising: the interactive control module determines whether there is a key operation instruction, if there is a key operation instruction, the operation instruction is sent to the MCU control module, and if there is no key operation instruction, the system is automatically turned off; the MCU control module receives the instruction sent by the interactive control module, judges the instruction, and sends it to the voltage and current control module; after the voltage and current control module receives the instruction, it controls the voltage and current input into the electromagnetic coil, thereby controlling the size of the electromagnetic force, and the second magnetic force member generates different sizes of suction force.

17. The control method according to claim 16, characterized by The key operation instruction includes mode switching key instruction, gear increasing instruction, gear decreasing instruction, and pause instruction.

18. The control method according to claim 16, wherein Before the interaction control module judges whether there is a key operation instruction, the method further comprises: a charging detection module detects whether an external charger is connected, and if the external charger is connected, a charging state signal is transmitted to a display module for display.

19. The control method according to claim 16, wherein The method further comprises: An electric quantity detection module judges whether the voltage is lower than a minimum working voltage, and if the voltage is lower than the minimum working voltage, the breast pump is automatically powered off, and if the voltage is higher than the minimum working voltage, the breast pump continues to work; An MCU control module judges whether a set continuous working time length is reached, and if the set continuous working time length is reached, the breast pump is automatically powered off, and if the set continuous working time length is not reached, the breast pump continues to work; After the interaction control module judges that there is a key operation instruction, the control method further comprises: pressing a power button to turn on the system; After the system is turned on, the control method further comprises: pressing the power button again to power off the breast pump.

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