Breast pump driven by magnetic force to generate negative pressure

Abstract

The utility model discloses a breast pump capable of generating negative pressure under magnetic drive, which comprises a horn cover, the horn cover forms an accommodating cavity, and the accommodating cavity can be attached to and at least partially accommodates a breast in a gapless manner to form a closed cavity; the flexible part is provided with a first magnetic part, and at least part of the flexible part is communicated with the closed cavity and forms part of the cavity wall of the closed cavity; the first magnetic part and the second magnetic part are oppositely arranged, and the second magnetic part drives the first magnetic part to move through magnetic force and drives the flexible part to deform, so that the closed cavity generates negative pressure. According to the breast pump, the second magnetic part drives the first magnetic part to move through magnetic force and drives the flexible part to deform, negative pressure is generated in the closed cavity, and therefore breast pumping is conducted, a vacuum pump and an electromagnetic valve are omitted, the generation root of noise is eliminated, noise is greatly reduced and even zero noise is achieved, the influence on mothers is eliminated, and comfort is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of breast pumps, and particularly relates to a breast pump driven by magnetic force to generate negative pressure. BACKGROUND

[0002] Postpartum mothers usually return to work several weeks after giving birth. In order to provide breast milk to the baby in time and relieve the discomfort such as swelling and pain caused by not emptying the breast in time when the breast milk secretion is more, the mother can use a breast pump to extract breast milk and properly store the extracted breast milk.

[0003] In the prior art, a combination of a vacuum pump and an electromagnetic valve is generally used for breast pumping of the breast pump. The combination not only makes the overall weight of the breast pump heavier, but also generates a large noise when the vacuum pump and the electromagnetic valve work, which greatly affects the mood of the mother and is poor in comfort. To solve such problems, the present application provides a breast pump driven by magnetic force to generate negative pressure. CONTENT OF THE UTILITY MODEL

[0004] Therefore, in order to solve the problems in the prior art, the present application provides a breast pump driven by magnetic force to generate negative pressure, which comprises a horn cover, the horn cover forms an accommodating cavity, the accommodating cavity can be closely attached to and at least partially accommodate the breast to form a sealed cavity;

[0005] A flexible member is provided with a first magnetic member, and the flexible member is at least partially communicated with the sealed cavity and forms a part of the cavity wall of the sealed cavity;

[0006] A second magnetic member is oppositely arranged with the first magnetic member, and the second magnetic member drives the first magnetic member to move and drives the flexible member to deform by magnetic force, so that the sealed cavity generates negative pressure.

[0007] Beneficial effects: The present application changes the traditional breast pumping form of the vacuum pump plus the electromagnetic valve to the electromagnetic breast pumping form, which not only greatly reduces the weight of the breast pump and makes it easier to carry, but also drives the first magnetic member to move and drives the flexible member to deform by magnetic force of the second magnetic member, so that the sealed cavity generates negative pressure to perform breast pumping. 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. BRIEF DESCRIPTION OF DRAWINGS

[0008] 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 below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the drawings shown.

[0009] Figure 1 The overall structure diagram of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0010] Figure 2 The exploded view of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0011] Figure 3 The assembly structure diagram of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0012] Figure 4 The cross-sectional structure diagram of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0013] Figure 5 The enlarged view of A in the present application Figure 4

[0014] Figure 6 The connecting piece structure diagram of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0015] Figure 7 The milk collection cover structure diagram of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0016] Figure 8 The flexible piece structure diagram of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0017] Figure 9 The internal structure diagram of the flexible piece of the breast pump driven by magnetic force to generate negative pressure of the present application;

[0018] Figure 10 The control system structure diagram of the wearable breast pump driven by magnetic force to generate negative pressure of the present application;

[0019] Figure 11 The control method flow chart of the wearable breast pump driven by magnetic force to generate negative pressure of the present application;

[0020] ​In the figure: 1, the first shell; 11, the horn cover; 111, the containing cavity; 112, the milk collection cavity; 12, the milk collection cover; 121, the mounting part; 122, the convex ring; 123, the assembly groove; 124, the through hole; 125, the air groove; 126, the first quick release structure; 127, the liquid outlet; 2, the second shell; 21, the first half shell; 211, the key; 212, the charging port; 22, the second half shell; 221, the second quick release structure; 3, the connecting piece; 31, the mounting cylinder; 311, the limiting piece; 32, the first connecting pipe; 33, the second connecting pipe; 34, the flexible piece mounting structure; 341, the first hook edge; 4, the flexible piece; 4a, the assembly part; 4b, the deformation part; 41, the first magnetic force piece; 42, the second hook edge; 43, the annular groove; 44, the protrusion; 45, the third magnetic force piece; 46, the wave trough; 47, the air hole; 5, the second magnetic force piece; 6, the control board; 7, the power supply device; 8, the one-way valve.

[0021] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0024] 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 limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" throughout the text includes three schemes, taking A and / or B as an example, including 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 those 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 protection scope required by the present application.

[0025] As Figures 1-9As shown, the embodiment of the present application provides a breast pump driven by magnetic force to generate negative pressure, which comprises a horn cover 11, the horn cover 11 forms a containing cavity 111, the containing cavity 111 can be closely attached to and at least partially contain the breast to form a closed cavity;

[0026] A flexible member 4 is provided with a first magnetic member 41, the flexible member 4 is at least partially communicated with the closed cavity and forms part of the cavity wall of the closed cavity;

[0027] A second magnetic member 5 is oppositely arranged with 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.

[0028] In the 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;

[0029] The first magnetic member 41 is oppositely arranged with the second magnetic member 5, and the positions of the first magnetic member 41 and the second magnetic member 5 can be exchanged, it should be noted that the magnetic member here not only refers to the component with magnetic force, but also the material that can be guided to move by magnetic force;

[0030] In other embodiments, the first magnetic member 41 includes but is not limited to a permanent magnet, the shape of the first magnetic member 41 can be annular or blocky or strip-shaped, the second magnetic member 5 is an electromagnetic coil, and the shape of the second magnetic member 5 is annular or blocky or strip-shaped;

[0031] In operation, first, the inner wall of the horn cover 11 is attached to the breast of the user, and then the second magnetic member 5 is started to generate magnetic force to drive the first magnetic member 41 to move, that is, when the magnetic poles of the second magnetic member 5 and the first magnetic member 41 are different, the first magnetic member 41 and the second magnetic member 5 generate magnetic attraction force, which drives the flexible member 4 to deform under the action of the magnetic attraction force, at this time, negative pressure is generated inside the closed cavity, and at this time, the horn cover 11 is matched to generate pressure on the breast of the user to express the breast milk; when the magnetic poles of the second magnetic member 5 and the first magnetic member 41 are the same, the first magnetic member 41 and the second magnetic member 5 generate repulsion force, which drives the flexible member 4 to reset at this time, and the negative pressure inside the sealed cavity disappears;

[0032] The present application changes the traditional vacuum pump and electromagnetic valve breast pumping form to electromagnetic breast pumping form, which not only greatly reduces the weight of the breast pump and is easy to carry, but also eliminates the noise source by canceling the vacuum pump and electromagnetic valve, greatly reduces the noise to even achieve "zero" noise, eliminates the influence on the mood of the mother, and improves the comfort;

[0033] 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.

[0034] In one embodiment, the flexible member 4 further comprises at least one third magnetic member 45, and the third magnetic member 45 surrounds the periphery of the first magnetic member 41.

[0035] In this embodiment, by adding a pre-buried third magnetic member 45 inside the flexible member 4, the magnetic property can be further improved, thereby achieving the effects of improving efficiency and reducing energy loss. The third magnetic member 45 is a neodymium magnet.

[0036] The third magnetic member 45 is arranged in a ring shape. When the number of third magnetic members 45 is two or more, the diameters of the third magnetic members 45 increase from inside to outside along the radial direction of the flexible member 4.

[0037] In one embodiment, the closed cavity is connected to a milk collection component for collecting and storing breast milk.

[0038] In this embodiment, any container that can collect and store breast milk can be considered as a milk collection component, such as a feeding bottle or a bowl-shaped container.

[0039] In one embodiment, the milk collection component comprises a milk collection cover 12, and the milk collection cover 12 and the horn cover 11 form a first shell 1, 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.

[0040] In this embodiment, the connection between the horn cover 11 and the milk collection cover 12 is a sealed connection, and the milk collection cover 12 is semi-spherical, and the opening edge of the milk collection cover 12 is provided with a liquid outlet 127, which is used to pour out the breast milk after the milk pumping is completed.

[0041] In one embodiment, the second shell 2 is further provided, and the second magnetic member 5 is fixed to the second shell 2, and the second magnetic member 5 can be alternately switched between S and N poles.

[0042] In this embodiment, by alternately switching the second magnetic member 5 between S and N poles, the flexible member 4 can be driven to realize reciprocating motion of deformation and resetting, effectively forming stable "sucking" and "releasing" functions, so that the breast pump can realize continuous and stable milk pumping process.

[0043] Specifically, taking the first magnetic force piece 41 as an S pole as an example, when the magnetic pole of the second magnetic force piece 5 is an N pole, the first magnetic force piece 41 and the second magnetic force piece 5 generate magnetic attraction force, so that the flexible piece 4 is deformed, and negative pressure is generated inside the sealing cavity, realizing the milking operation; when the magnetic pole of the second magnetic force piece 5 is an S pole, the first magnetic force piece 41 and the second magnetic force piece 5 generate repulsion force, which pushes the flexible piece 4 to reset, and the negative pressure inside the cavity disappears.

[0044] The vacuum pump has a delay in generating negative pressure conduction, and the efficiency can only be improved by the original material resilience. The air at the flexible piece 4 needs to be pumped out to generate negative pressure on the human body. The magnetic attraction method can instantaneously change the direction and strength of the magnetic field, and the repulsion force can drive the flexible piece 4 to quickly reset, thereby reducing the delay and greatly improving the milking efficiency.

[0045] In one embodiment, the connecting piece 3 is further provided, and the horn cover 11 and the flexible piece 4 form a sealed cavity through the connecting piece 3. The connecting piece 3 is a hollow structure, and one end of the connecting piece 3 is provided with an opening. The closed end of the horn cover 11 is connected to the opening end of the connecting piece 3.

[0046] In this embodiment, the connecting piece 3 includes but is not limited to a three-way valve. The connection between the horn cover 11, the flexible piece 4 and the connecting piece 3 is detachable and sealed.

[0047] In one embodiment, the connecting piece 3 is further 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.

[0048] In this embodiment, the one-way valve 8 is arranged to prevent the backflow of the breast milk in the milk collection component to the sealed cavity when the negative pressure is generated in the sealed cavity. The one-way valve 8 is a duckbill valve. Specifically, when the 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 and close. After the one-way valve 8 is closed, the gas leakage is prevented, the air tightness is improved, and the milking effect is improved. When the negative pressure disappears, the one-way valve 8 restores to open, and the expressed breast milk flows into the milk collection cover 12 from the one-way valve 8.

[0049] In one embodiment, the connecting piece 3 is provided with a flexible piece mounting structure 34. 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.

[0050] In the embodiment, the flexible member mounting structure 34 is a suction bowl, and the flexible member mounting structure 34 includes structures of different shapes, such as a circular shape, a square shape, or a planar structure, as long as the flexible member 4 can be fixed, and the flexible member mounting structure 34 is within the scope of the flexible member mounting structure 34. The edge of the flexible member 4 is connected to the edge of the flexible member mounting structure 34 in a sealed or interference manner, so that the inside of the flexible member mounting structure 34 is in a relatively sealed state. Optionally, the shape of the flexible member 4 matches the flexible member mounting structure 34.

[0051] The bottom of the flexible member mounting structure 34 is provided with an air hole 47, and the inside of the flexible member mounting structure 34 is communicated with the connecting member 3 through the air hole 47.

[0052] In one embodiment, the flexible member mounting structure 34 and the flexible member 4 are mutually attached.

[0053] In the embodiment, the flexible member mounting structure 34 and the flexible member 4 are mutually attached, so that there is no gap between the flexible member mounting structure 34 assembly part 4a and the flexible member 4 assembly part 4a. When performing breast pumping, if the mother's milk is accidentally sucked into the flexible member mounting structure 34 assembly part 4a, the mother's milk in the flexible member mounting structure 34 assembly part 4a will be discharged in time when the flexible member 4 assembly part 4a rebounds, so that the mother's milk will not be left in the flexible member mounting structure 34 assembly part 4a.

[0054] In one embodiment, the inner wall of the milk collection cover 12 is provided with a convex ring 122, and the milk collection cover 12 is connected to the flexible member mounting structure 34 through the convex ring 122. The convex ring 122 extends from the opening of the flexible member mounting structure 34 to the inside of the flexible member mounting structure 34, and the convex ring 122 and the flexible member mounting structure 34 clamp the flexible member 4.

[0055] In the embodiment, the shape of the convex ring 122 is consistent with the bowl opening shape of the flexible member mounting structure 34, and one side of the convex ring 122 forms an assembly groove 123 with the inner wall of the milk collection cover 12. When the flexible member 4 is installed with the flexible member mounting structure 34, the flexible member mounting structure 34 with the installed flexible member 4 is inserted into the assembly groove 123. At this time, the convex ring 122 is inserted into the flexible member mounting structure 34, and the assembly is completed. The convex ring 122 also has a positioning function at this time.

[0056] 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 is deformed, the convex ring 122 can improve the connection strength of the connection between the flexible piece 4 and the flexible piece mounting structure 34, preventing the connection from being weakened 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 being able to increase 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, forming an interference fit, so that the flexible piece 4 is tightly attached to the inner wall of the flexible piece mounting structure 34, further improving the sealing effect.

[0057] In one embodiment, the milk collection cover 12 is provided with a mounting portion 121, which is provided as a clamping groove or a magnetic attraction structure. The milk collection cover 12 is detachably connected to the second shell 2 through the mounting portion 121.

[0058] In one embodiment, a through hole 124 is formed on the surface of the milk collection cover 12, which communicates with the cavity formed by the milk collection cover 12 and the flexible piece 4.

[0059] In this embodiment, the through hole 124 can make the air pressure in the cavity formed by the milk collection cover 12 and the flexible piece 4 consistent with the atmospheric pressure, so that the flexible piece 4 can reset.

[0060] In one embodiment, an air groove 125 is formed on the surface of the milk collection cover 12, which communicates with the through hole 124.

[0061] In this embodiment, when the through hole 124 is arranged on the mounting portion 121, the interior of the milk collection 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 collection cover 12 and the flexible piece 4 is consistent with the atmospheric pressure and is not affected by the second shell 2.

[0062] In one embodiment, the second magnetic force piece 5 is controlled by a control mechanism arranged in the second shell 2.

[0063] In this embodiment, the control mechanism can control the magnetic poles of the second magnetic force piece 5, so as to realize the effect of continuously changing between the S pole and the N pole of the second magnetic force piece 5.

[0064] In one embodiment, the control mechanism includes a control board 6 and a power supply device 7. The control board 6 is electrically connected to the second magnetic force piece 5, and the power supply device 7 is electrically connected to the control board 6.

[0065] In this embodiment, the power supply device 7 is a storage battery, and the number of storage batteries is one. In other embodiments, the number of storage batteries can be two or more. The power supply device 7 can supply power to the second magnetic force piece 5 and the control board 6.

[0066] Specifically, when the second magnetic force piece 5 is powered, the current will make the second magnetic force piece 5 generate a magnetic field, thereby generating a magnetic pole, and the direction and size of the current can be controlled through the control panel 6, thereby controlling the magnetic pole conversion of the second magnetic force piece 5 and the strength of the magnetic field;

[0067] More specifically, taking the first magnetic force piece 41 as an S pole as an example, when the current direction makes the magnetic pole of the second magnetic force piece 5 an N pole, the first magnetic force piece 41 and the second magnetic force piece 5 generate magnetic attraction, so that a negative pressure is generated inside the sealed cavity, realizing the milking operation, when the current direction makes the magnetic pole of the second magnetic force piece 5 an S pole, the first magnetic force piece 41 and the second magnetic force piece 5 generate repulsion, pushing the flexible piece 4 to reset in the direction away from the second shell 2, and the negative pressure inside the cavity disappears.

[0068] 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.

[0069] In one embodiment, the second shell 2 includes a first half shell 21 and a second half shell 22, the first half shell 21 and the second half shell 22 are detachably connected, 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.

[0070] In this embodiment, the first half shell 21 and the second half shell 22 are detachably connected, and the lower end of the second half shell 22 is detachably installed at the mounting portion 121, so that the assembly and disassembly of the breast pump are convenient and fast.

[0071] Among them, the mounting portion 121 is provided with a first quick release structure 126 corresponding to the 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, in addition, the first quick release structure 126 and the second quick release structure 221 can be magnetic attraction pieces.

[0072] In one embodiment, the first half shell 21 is provided with a plurality of keys 211.

[0073] In this embodiment, different keys 211 can send different control instructions to the controller to achieve different functions.

[0074] Specifically, the keys 211 include a power on / off key, a gear key, a pause key and a mode switching key, wherein the power on / off 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 breast pumping mode, a stimulation mode and an automatic mode, and the mode switching key is used to switch the four modes of the breast pump.

[0075] 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.

[0076] In the 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.

[0077] In addition, the outer surface of the milk collection cover 12 is provided with a plurality of scale lines and different markings, so that the amount of expressed breast milk can be measured.

[0078] In one embodiment, the first half shell 21 is provided with a display screen, and the display screen is electrically connected with the control panel 6.

[0079] In the embodiment, the display screen can display pressure, power, charging status, time and gear information.

[0080] 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, the opening end of the mounting cylinder 31 is detachably connected with the closed end of the horn cover 11, one side of 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, the other side is communicated with the milk collection cover 12 through the second connecting pipe 33, 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.

[0081] In the embodiment, the connection between the opening end of the mounting cylinder 31 and the closed end of the horn cover 11 is sealed or interference fit, realizing the relative sealing of the connection, the cross-sectional shape of the mounting cylinder 31 is circular in the embodiment, and can be polygonal and other irregular shapes in other embodiments, the second connecting pipe 33 is provided, so that the breast milk in the mounting cylinder 31 can flow to the milk collection cover 12 through the second connecting pipe 33 for storage.

[0082] 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 collection part by the limiting piece 311.

[0083] In the embodiment, the limiting member 311 is in a semicircular sheet shape, and at least two in number, and is respectively located at two sides of the connecting member 3. When the connecting member 3 is assembled with the milk collecting cover 12, the limiting member 311 can limit and position the connecting member 3.

[0084] In one embodiment, the outer edge of the opening of the flexible member mounting structure 34 is provided with a first hook edge 341, the bowl wall of the flexible member mounting structure 34 and the first hook edge 341 form a hook structure, and the upper end of the hook structure is inclined towards the bottom of the milk collecting cover 12. The outer edge of the flexible member 4 is bent downward to form a ring-shaped groove 43, and the edge of the flexible member 4 is provided with a second hook edge 42 extending into the ring-shaped groove 43. When the first hook edge 341 is inserted into the ring-shaped groove 43, the first hook edge 341 and the second hook edge 42 are buckled.

[0085] In the embodiment, the second hook edge 42 is provided at the opening of the ring-shaped groove 43 and forms a closed shape. When installing, only after the first hook edge 341 is inserted into the ring-shaped groove 43, the second hook edge 42 can be buckled with the first hook edge 341 and is not easy to be separated. Under the action of the self elastic force of the flexible member 4 and the inclined hook structure, the flexible member 4 is pulled tight. In this way, the connection between the flexible member mounting structure 34 and the flexible member 4 is tightly connected, so that a better sealing effect is achieved.

[0086] The embodiment of the present application provides a flexible film for generating negative pressure by magnetic driving, which is the flexible member 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.

[0087] In the embodiment, the shape of the deformation part 4b is a circular sheet shape. Alternatively, the shape of the deformation part 4b can also be a polygonal shape and other irregular shapes. The assembly part 4a is annular and the shape matches 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 member is in a block shape and is 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 edge of the assembly part 4a is provided with a groove structure, which is the ring-shaped groove 43. The film body is installed on the flexible member mounting structure 34 through the groove structure, so that the flexible film and the suction bowl can be quickly buckled, 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.

[0088] The second hook edge 42 is provided on the inner wall of the opening of the ring-shaped groove 43 and protrudes towards the deformation part 4b, and the second hook edge 42 is located on the side wall of the ring-shaped groove 43 away from the deformation part 4b.

[0089] By inlaying the first magnetic member in the deformation portion 4b, the deformation portion 4b can be driven by magnetic force to achieve the effect of deformation, without using a vacuum pump or mechanical structure for driving, thus preventing noise from being generated at the source and affecting the user's mood.

[0090] In one embodiment, the third magnetic member is inlaid in the deformation portion 4b and located at the periphery of the first magnetic member.

[0091] In the embodiment, when there are multiple third magnetic members, the diameters of the third magnetic members increase in turn from inside to outside along the radial direction of the deformation portion 4b.

[0092] In one embodiment, the cross-sectional shape of the deformation portion 4b is wavy.

[0093] In the embodiment, by arranging the deformation portion 4b to be wavy, the resilience of the deformation portion 4b can be increased, and the third magnetic member is arranged in the wave trough 46 of the deformation portion 4b. Optionally, the cross-section of the third magnetic member is arranged to be arc-shaped, so that the third magnetic member is adapted to the wave trough 46 of the deformation portion 4b.

[0094] The forming process of the flexible film assembly portion 4a (i.e., the flexible member 4) is as follows:

[0095] First, the flexible film assembly portion 4a is integrally formed by injection molding;

[0096] Then, the first magnetic member assembly portion 4a and the third magnetic member assembly portion 4a are inlaid in the deformation portion 4b assembly portion 4a: the first magnetic member assembly portion 4a and the third magnetic member assembly portion 4a are formed at the suction cup diaphragm by sleeving, at this time the neodymium alloy at the flexible film assembly portion 4a does not have magnetism, after the sleeving forming is completed, the flexible film assembly portion 4a (with the first magnetic member assembly portion 4a and the third magnetic member assembly portion 4a built-in) is placed in a fixed position in a jig to be not free to move, the suction cup diaphragm assembly (with the first magnetic member assembly portion 4a and the third magnetic member assembly portion 4a built-in) placed in the jig is placed into a magnetizing machine for magnetizing, and then the flexible film assembly portion 4a of the application is obtained.

[0097] The specific steps are as follows,

[0098] S1, clean the surface of the neodymium alloy (not magnetized) of oil stains and dust;

[0099] S2, apply a treatment agent that can bond metal and silica gel to the surface of the neodymium alloy, and then dry treatment needs to be performed according to the instructions of the treatment agent;

[0100] S3, after the treatment is completed, place the neodymium alloy into a mold for sleeving to form a silica gel base;

[0101] S4, clean the base assembly after the sleeving is completed to remove the oil stains and dust on the surface.

[0102] S5, brushing the treating agent, and drying according to the treating agent instruction;

[0103] S6, putting the base assembly after the treatment into the mold to re-suit the flexible film, forming the semi-finished flexible film (with neodymium alloy);

[0104] S7, putting the obtained semi-finished flexible film (with neodymium alloy) into the magnetizing jig in sequence, so that the semi-finished flexible film (with neodymium alloy) will not move randomly during the magnetizing process, and then putting it into the magnetizing machine for magnetizing, so that the flexible film with magnetism is obtained.

[0105] 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 close to the deformation part 4b away from the annular groove 43.

[0106] 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, improving the sealing of the connection.

[0107] In one embodiment, the first magnetic member and the third magnetic member are both neodymium magnets.

[0108] In this embodiment, the neodymium magnet is obtained after the neodymium alloy is magnetized.

[0109] The application provides a magnetic driving system, which is composed of the components in the above-mentioned embodiment of the breast pump driven by magnetic force to generate negative pressure, and includes:

[0110] The flexible member 4;

[0111] The flexible member installation structure 34;

[0112] The flexible member 4 is arranged on the flexible member installation structure 34, and the connection between the flexible member 4 and the flexible member installation structure 34 is sealed; and the flexible member installation structure 34 is provided with an air hole 47;

[0113] The first magnetic member 41 is arranged in the flexible member 4;

[0114] The second magnetic member 5 is arranged opposite to the first magnetic member 41, and the second magnetic member 5 can be alternately changed between S pole and N pole.

[0115] The application changes the traditional breast pump with a vacuum pump and a solenoid valve into an electromagnetic breast pump, which not only greatly reduces the weight of the breast pump and is easier to carry, but also eliminates the source of noise by canceling the vacuum pump and the solenoid valve, greatly reduces the noise to even "zero" noise, eliminates the influence on the mood of the mother, and improves the comfort.

[0116] 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 requirements, and the specific method is as follows:

[0117] The pressure is the force per unit area, i.e. P=F / S, F=P*S;

[0118] From the conversion between air pressure and force, it can be known that 1 pa=1 N / m2, in addition, 1 mmHg=133.3223684 Pa;

[0119] Therefore, after the area of the flexible member mounting structure 34 is calculated, the force required for the flexible member 4 to be pulled upward can be obtained by substituting the formula.

[0120] From the Maxwell electromagnetic attraction calculation formula, it can be obtained that,

[0121] Formula one: electromagnetic attraction F=B 2 *S / 2*μ 0 =φ 2 / 2*μ 0 *S

[0122] 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 passing through the cross section (Wb), and μ 0 is the vacuum permeability (4π*10^-7 Wb / A·m).

[0123] Without considering the magnetic leakage loss and the connection air gap loss, only considering the deformation travel of the flexible member mounting structure 34 as the main air gap, at this time the magnetic induction intensity B at the built-in magnetic component of the flexible member mounting structure 34 is:

[0124] Formula two: B=N*U*μ 0 / R*g=N*I*μ 0 / g

[0125] In the formula, N is the number of turns; I is the current intensity (A); U is the power supply 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 member mounting structure 34 to the coil cross section).

[0126] Substituting formula two into formula one can obtain:

[0127] Formula three: electromagnetic attraction F=(N*I) 2 *μ 0 *S / 2*g 2

[0128] The area of the first magnetic force piece 41 can be determined through the above design, and is the same as the cross-sectional area S of the magnetic circuit of the coil, and the distance g of the cross section of the first magnetic force piece 41 to the second magnetic force piece 5 can also be calculated, wherein the number of turns N and the coil current I can be used as debugging values, N*I is proportional to F, and F is greater than the upward force of the flexible piece 4, so that the required negative pressure requirement can be met.

[0129] The control method of the breast pump driven by the magnetic force to generate the negative pressure in the above embodiment provided by the embodiment of the application comprises the following steps.

[0130] S1, a horn cover 11 is arranged, the horn cover 11 forms a first cavity, and the first cavity can be closely attached to and at least partially accommodate the breast to form a sealed cavity;

[0131] 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;

[0132] 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 drives the flexible piece 4 to deform, so that the sealed cavity forms a negative pressure to force the breast to lactate.

[0133] In the embodiment, the traditional vacuum pump and solenoid valve are changed into the electromagnetic type of breast pump, which greatly reduces the weight of the breast pump and is easy to carry. Meanwhile, the vacuum pump and the solenoid valve are cancelled, the second magnetic force piece 5 is used to control the movement of the first magnetic force piece 41, and then drives the flexible piece 4 to deform, so that the sealed cavity forms a negative pressure to force the breast to lactate, which eliminates the source of noise, greatly reduces the noise, even to “zero” noise, eliminates the influence on the mood of the mother, and improves the comfort.

[0134] In one embodiment, in the step of arranging the second magnetic force piece 5 opposite to the first magnetic force piece 41, using the second magnetic force piece 5 to control the movement of the first magnetic force piece 41, and then driving the flexible piece 4 to deform, the step further comprises the following steps:

[0135] The second magnetic force piece 5 is controlled to alternately change between the S pole and the N pole, so that the first magnetic force piece 41 drives the flexible piece 4 to reciprocate.

[0136] In one embodiment, in the step of arranging a horn cover 11, the horn cover 11 forms a first cavity, and the first cavity can accommodate and closely attach to the breast to form a sealed cavity, the step further comprises the following steps:

[0137] 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.

[0138] The connecting piece 3 is provided with a suction bowl, the inside of the suction bowl is communicated with the connecting piece 3;

[0139] 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.

[0140] In one embodiment, the second magnetic force piece 5 is arranged opposite to the first magnetic force piece 41, the movement of the first magnetic force piece 41 is controlled by the second magnetic force piece 5, and then the flexible piece 4 is deformed, so that in the step of making the horn cover 11 adhere to the breast, the closed cavity forms negative pressure by the deformation of the flexible piece 4 to force the breast to lactate,

[0141] Further comprising the following steps:

[0142] The second magnetic force piece 5 is fixed in the second shell 2, so that the second magnetic force piece 5 is connected to the control mechanism, and the control mechanism is arranged in the second shell 2.

[0143] As shown in Figure 10 The embodiment of the application provides a kind of negative pressure of the breast pumping circuit control system driven by magnetic force, 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, comprising:

[0144] MCU control module, MCU control module is used to receive signal and send signal;

[0145] Interactive control module, the interactive control module receives the key 211 operation signal of user, and sends the operation signal to MCU control module;

[0146] Voltage current control module, voltage current control module is used to receive the control signal of MCU control module, controls the voltage and current size of electromagnet coil, reaches different suction force position, and sends suction force position signal back to MCU control module.

[0147] In the embodiment, after user carries out key 211 operation, interactive control module will send corresponding key 211 signal to MCU control module, MCU control module is used to receive the signal of interactive control module, and sends control signal to voltage current control module, after voltage current control module receives the control signal of MCU control module, according to the instruction of signal, the voltage and current size of electromagnet coil is controlled, so that the size of electromagnetic force is controlled, so that the deformation degree of flexible piece 4 is controlled, and then different suction force is controlled.

[0148] In one embodiment, it further includes an electric quantity detection module, which is used to monitor the electric quantity of the power supply device 7 in real time and send data information to the MCU control module.

[0149] In the embodiment, the power detection module can monitor the power of the battery inside the breast pump in real time and transmit the monitoring data to the MCU control module.

[0150] In one embodiment, a charging detection module is further included, which is configured to detect the external charger and feed back to the MCU control module.

[0151] In the embodiment, when the battery of the breast pump is out of power, the charging detection module detects the charger and monitors the charging state in real time if the breast pump is charged.

[0152] In one embodiment, a display module is further included, which is configured to receive the signals sent by the voltage and current control module, the power detection module and the charging detection module to the MCU control module.

[0153] In the embodiment, the voltage and current control module, the power detection module and the charging detection module send signals to the MCU control module, and then the MCU control module sends the signals to the display module, and the display module displays the data information on the display screen.

[0154] As shown in Figure 11 The present application provides a kind of circuit control method of breast milk of magnetic force drive generation negative pressure, for controlling the circuit control system of any one of the above, method includes:

[0155] S1: boot, system initialization;

[0156] S2: charging detection module detects whether external charger is connected, if external charger is connected, charging state signal is transmitted to display module and is displayed;

[0157] 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, if there is no key 211 operation instruction, automatic shutdown;

[0158] S4: MCU control module receives the instruction sent by interactive control module, judges the instruction and sends to voltage and current control module;

[0159] S5: voltage and current control module receives instruction, controls the voltage and current of electromagnetic coil, thereby controls the size of electromagnetic force to generate different size suction.

[0160] In the embodiment, before operation, the system of the breast pump needs to be initialized first, after the initialization is completed, the user performs the key 211 operation, after the interactive control module judges that there is a key 211 operation instruction, the power button is pressed to turn on the system, through such setting, the breast pump can be prevented from starting due to accidental touch, after the system is turned on, the key 211 control can be performed, the instruction corresponding to the key 211 of the interactive control module is sent to the MCU control module, and then the MCU control module sends the instruction to the voltage and current control module, the voltage and current of the electromagnetic coil are adjusted according to the instruction, the electromagnetic force is controlled, the deformation degree of the flexible part 4 is controlled, different suction forces are controlled to be generated, and different suction force gears are fed back to the display module for display.

[0161] After the system is turned on, if the power button is pressed again, the breast pump is turned off.

[0162] In one embodiment, the key 211 operation instruction includes a mode switching key instruction, an increase gear instruction, a decrease gear instruction and a pause instruction.

[0163] In the embodiment, the mode switching instruction, the increase gear instruction, the decrease gear instruction and the pause instruction correspond to the mode switching key, the "+" key for increasing the gear, the "-" key for decreasing the gear and the pause key on the breast pump, and the corresponding instruction can be issued by pressing the corresponding key.

[0164] In one embodiment, after the breast pump starts to work, the method further includes that the power detection module judges whether the voltage is lower than the minimum working voltage, if the voltage is lower than the minimum working voltage, the breast pump is automatically turned off, and if the voltage is higher than the minimum working voltage, the breast pump continues to work.

[0165] In the embodiment, the minimum working voltage is 3.3V, if the voltage is lower than 3.3V, the breast pump is automatically turned off, and if the voltage is higher than 3.3V, the breast pump continues to work.

[0166] In one embodiment, after the breast pump starts to work, the method further includes that the MCU control module judges whether the set continuous working time length is reached, if the set continuous working time length is reached, the breast pump is automatically turned off, and if the set continuous working time length is not reached, the breast pump continues to work.

[0167] In the embodiment, the set continuous working time length is 20 minutes, if the continuous working time reaches 20 minutes, the breast pump is automatically turned off, and if the continuous working time does not reach 20 minutes, the breast pump continues to work.

[0168] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made according to the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A breast pump that generates negative pressure by magnetic drive, characterized in that: include: A horn cover, wherein the horn cover forms a receiving cavity, and the receiving cavity can fit closely to and at least partially receive the breast without any gap, forming a closed cavity; A flexible member, on which a first magnetic member is provided, wherein the flexible member is at least partially connected to the sealed cavity and forms a portion of the cavity wall of the sealed cavity; The second magnetic member, the first magnetic member and the second magnetic member are arranged opposite to each other, and the second magnetic member drives the first magnetic member to move and the flexible member to deform through magnetic force, so that the closed cavity generates negative pressure.

2. The magnetically driven breast pump for generating negative pressure according to claim 1, wherein: The sealed cavity is connected to a milk collecting component, and the milk collecting component is used for collecting and storing breast milk.

3. The breast pump that generates negative pressure by magnetic drive according to claim 2, characterized in that: It also includes a second shell, the second magnetic member is fixed to the second shell, and the second magnetic member can alternately switch between the S pole and the N pole.

4. The breast pump that generates negative pressure by magnetic drive according to claim 3, characterized in that: It also includes a connecting piece, through which the speaker cover and the flexible piece form the closed cavity. The interior of the connecting piece is a hollow structure, one end of the connecting piece is provided with an opening, and the closing end of the speaker cover is connected to the opening end of the connecting piece.

5. The breast pump that generates negative pressure by magnetic drive according to claim 4, characterized in that: The connecting piece is also communicated with the milk collecting component, and a one-way valve is provided between the connecting piece and the milk collecting component.

6. The breast pump that generates negative pressure by magnetic drive according to claim 4, characterized in that: The connecting member is provided with a flexible member installation structure, the interior of the flexible member installation structure is communicated with the connecting member, and the flexible member is arranged in the flexible member installation structure.

7. The breast pump that generates negative pressure by magnetic drive according to claim 6, characterized in that: The milk collecting component comprises a milk collecting shield, and the milk collecting shield and the horn shield together form a milk collecting cavity.

8. The breast pump that generates negative pressure by magnetic drive according to claim 7, characterized in that: The inner wall of the breast collecting shield is provided with a convex ring, and the breast collecting shield is connected to the flexible component mounting structure through the convex ring. The convex ring extends from the opening of the flexible component mounting structure into the flexible component mounting structure, and the convex ring and the flexible component mounting structure clamp the flexible component.

9. The breast pump that generates negative pressure by magnetic drive according to claim 7, characterized in that: The breast collecting shield is provided with a mounting portion, which is configured as a card slot or a magnetic structure, and the breast collecting shield is detachably connected to the second shell through the mounting portion.

10. The breast pump that generates negative pressure by magnetic drive according to claim 9, characterized in that: A through hole is provided on the surface of the breast collecting shield, and the through hole communicates with the breast collecting shield and the cavity formed by the flexible component.

11. The breast pump that generates negative pressure by magnetic drive according to claim 3, characterized in that: The second magnetic member is an electromagnetic coil, and the second magnetic member is controlled by a control mechanism, which is disposed in the second shell.

12. The breast pump that generates negative pressure by magnetic drive according to claim 11, characterized in that: The control mechanism includes a control board and a power supply device. The control board is electrically connected to the second magnetic member, and the power supply device is electrically connected to the control board.

13. The magnetically driven breast pump for generating negative pressure according to claim 7, characterized in that: The connecting member includes a mounting tube, a first connecting tube and a second connecting tube. An opening is provided at one end of the mounting tube. The open end of the mounting tube is detachably connected to the closed end of the horn cover. One side of the mounting tube is connected to the flexible member mounting structure through the first connecting tube, and the other side is connected to the breast collecting shield through the second connecting tube, and the first connecting tube is located above the second connecting tube.

14. The breast pump that generates negative pressure by magnetic drive according to claim 5, characterized in that: A limiting member is provided on the connecting member, and the connecting member is restricted from relative movement with the milk collecting component by the limiting member.

15. The breast pump that generates negative pressure by magnetic drive according to claim 7, characterized in that: A first hook is provided on the outer edge of the opening of the flexible component mounting structure, and the bowl wall of the flexible component mounting structure and the first hook form a hook structure, and the upper end of the hook structure is inclined toward the bottom of the breast shield, and the outer edge of the flexible component is bent downward to form an annular groove, and a second hook is provided on the edge of the flexible component to extend to the inside of the annular groove. When the first hook is inserted into the annular groove, the first hook is buckled with the second hook.

16. The breast pump that generates negative pressure by magnetic drive according to claim 10, characterized in that: The second shell includes a first half shell and a second half shell, the first half shell is detachably connected to the second half shell, the lower end of the second half shell is provided with a quick release structure, and the lower end of the second half shell is detachably mounted on the mounting portion through the quick release structure.

17. The breast pump that generates negative pressure by magnetic drive according to claim 16, characterized in that: The first half shell is provided with a plurality of buttons.

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