Reciprocating magnetic force pump

Abstract

The utility model discloses a reciprocating magnetic force pump, including the casing, the one side of casing is provided with the air port, the flexible member is with the cavity that forms with casing, forms the air inlet one -way channel between air port and cavity, forms the air outlet one -way channel between casing side wall and cavity, the magnetic member, the magnetic member sets up in the flexible member, the driving part, the driving part sets up in the one side of flexible member away from casing, and the driving part is used for producing the magnetic force and drives the magnetic member movement to drive the flexible member deformation produces the negative pressure, through the driving part and the magnetic member, the magnetic force of driving part produces and drives the magnetic member movement to drive the flexible member deformation produces the negative pressure and reaches the effect of suction, changes the traditional vacuum pump or mechanical pump to the form of electromagnetic drive, eliminates the noise generation source, greatly reduces the noise, eliminates the influence to user emotion, improves the comfort.

Description

Technical Field

[0001] This utility model relates to the field of breast pump technology, and in particular to a reciprocating magnetic pump. Background Technology

[0002] A breast pump is a tool used to express breast milk accumulated in the mammary glands. A crucial component of a breast pump is the vacuum pump. In existing technologies, breast pumps typically use a vacuum pump to directly create a vacuum and generate negative pressure, or employ a mechanical structure to deform a flexible membrane and generate negative pressure (such as a cam-type vacuum pump), thus creating suction for milk extraction. However, both of these methods produce significant noise during operation, which can negatively impact the user's mood and comfort. Therefore, this application proposes a reciprocating magnetic pump to address these issues. Summary of the Invention

[0003] Based on this, in order to solve the problems existing in the prior art, this application provides a reciprocating magnetic pump, including a housing, and an air port is provided on one side of the housing;

[0004] A flexible component and a housing together form a cavity. An air inlet and a cavity form a one-way air inlet channel, and a housing sidewall and the cavity form a one-way air outlet channel.

[0005] Magnetic component, the magnetic component is disposed on the flexible component;

[0006] The driving component is located on the side of the flexible component away from the housing. The driving component is used to generate magnetic force to drive the magnetic component to move, thereby causing the flexible component to deform and generate negative pressure.

[0007] Furthermore, the flexible component includes a convex ring and a flexible membrane, with the edge of the flexible membrane connected to the edge of the convex ring to form a bowl shape, and a magnetic component embedded in the center of the flexible membrane.

[0008] Furthermore, the convex ring and the flexible membrane are integrally formed.

[0009] Furthermore, the flexible membrane has annular pleats at its edge, which are located around the magnetic component.

[0010] Furthermore, the driving component includes a coil and several stacked silicon steel sheets, with the silicon steel sheets fitted over a portion of the coil.

[0011] Furthermore, the silicon steel sheet has two notches in an "E" shape, and the coil is embedded in the notches of the silicon steel sheet.

[0012] Furthermore, a first check valve is provided at the air port of the housing, and a second check valve is provided on the side wall of the housing.

[0013] Furthermore, the first check valve and the second check valve are single-piece check valves or duckbill valves.

[0014] Furthermore, the flexible component and the housing are connected in a sealed manner.

[0015] Furthermore, the magnetic component is a permanent magnet or other metal material with magnetic properties.

[0016] Beneficial effects: This application uses a driving component and a magnetic component. The magnetic force generated by the driving component drives the magnetic component to move, thereby causing the flexible component to deform and generate negative pressure to achieve a suction effect. This changes the traditional vacuum pump or mechanical pump to an electromagnetic drive, eliminating the source of noise, greatly reducing noise, eliminating the impact on the user's mood, and improving comfort. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the reciprocating magnetic pump of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the reciprocating magnetic pump of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the flexible component structure of the reciprocating magnetic pump of this utility model;

[0022] In the figure: 1. Shell; 11. Cavity; 12. Air port; 13. Recess; 2. Flexible component; 21. Convex ring; 22. Magnetic component; 23. Flexible membrane; 231. Wrinkle; 24. Receiving groove; 3. Driving component; 31. Coil; 32. Silicon steel sheet; 4. First check valve; 5. Second check valve.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] like Figure 1-3 As shown, this application embodiment provides a reciprocating magnetic pump, including: a housing 1, and an air port 12 provided on one side of the housing 1;

[0028] Flexible component 2, flexible component 2 and shell 1 together form cavity 11, air inlet 12 and cavity 11 form one-way air inlet channel, and shell 1 sidewall and cavity 11 form one-way air outlet channel.

[0029] Magnetic component 22 is disposed on flexible component 2;

[0030] The driving component 3 is located on the side of the flexible component 2 away from the housing 1. The driving component 3 is used to generate magnetic force to drive the magnetic component 22 to move, so as to drive the flexible component 2 to deform and generate negative pressure.

[0031] In this embodiment, the middle part of the shell 1 is circular and the edge is provided with a flange. The connection between the flexible member 2 and the shell 1 is a sealed connection, such as a heat-melt connection or an adhesive, so that the cavity 11 formed by the flexible member 2 and the circular cover part of the shell 1 is relatively sealed. Gas outside the cavity 11 can only enter the cavity 11 through the air port 12. The cover part of the shell 1 is provided with a recessed part 13 that is recessed into the cavity 11. The cross-sectional shape of the recessed part 13 is circular. The air port 12 is provided at the bottom of the recessed part 13, and one end of the air port 12 extends to the outside of the recessed part 13.

[0032] The magnetic element 22 is a permanent magnet or other metal material with magnetism, and the magnetic element 22 is circular. Optionally, the magnetic element 22 can also be square or other shapes. In other embodiments, one or more magnetic elements 22 are arranged in a ring and are sequentially nested along the radial direction of the flexible element 2.

[0033] The driving component 3 is disposed opposite to the magnetic component 22, and the driving component 3 and the magnetic component 22 are spaced apart. When the magnetic component 22 is a permanent magnet, the driving component 3 can generate a magnetic force with the same magnetic pole as the permanent magnet or a magnetic force with the opposite magnetic pole, thereby generating a magnetic attraction or repulsion force with the permanent magnet, thereby causing the flexible component 2 to deform. When the magnetic component 22 is made of other metal materials with magnetism, the driving component 3 can generate a magnetic attraction force on the metal material, thereby causing the flexible component 2 to deform.

[0034] Specifically, during operation, the driving component 3 generates magnetic force, which drives the magnetic component 22 to move. The movement of the magnetic component 22 causes the flexible component 2 to deform. After the flexible component 2 deforms, the internal volume of the cavity 11 increases, creating a negative pressure inside the cavity 11. At this time, the external gas will enter the cavity 11 from the air port 12 under the action of pressure, thereby generating a suction force. When the flexible component 2 is reset, the gas inside the cavity 11 is squeezed out from the one-way air outlet channel on the outer edge of the shell 1.

[0035] This application uses a driving component 3 and a magnetic component 22. The magnetic force generated by the driving component 3 drives the magnetic component 22 to move, thereby causing the flexible component 2 to deform and generate negative pressure to achieve a suction effect. This changes the traditional vacuum pump or mechanical pump to an electromagnetic drive, which not only greatly reduces the weight of the breast pump and makes it easier to carry, but also eliminates the root cause of noise, greatly reduces noise or even achieves "zero" noise, eliminates the impact on the user's mood, and improves comfort.

[0036] In addition, compared with traditional vacuum pumps or mechanical structures that have a delay in negative pressure transmission and whose efficiency can only be improved by relying on the original material's resilience, the air in the housing 1 and the flexible part 2 needs to be evacuated before negative pressure can be generated at the human body. However, this application uses a magnetic attraction method that can instantly change the direction and strength of the magnetic field. The mutual repulsion force can drive the flexible part 2 to quickly reset, which can reduce the delay and greatly improve the efficiency of milk suction.

[0037] In one embodiment, the drive element 3 includes a coil 31 and a plurality of stacked silicon steel sheets 32, the silicon steel sheets 32 being partially sleeved on the coil 31.

[0038] In this embodiment, the silicon steel sheet 32 ​​has two notches in the shape of an "E". The coil 31 is embedded in the notches of the silicon steel sheet 32. By setting it in this way, the magnetic flux in the middle part is maximized, exhibiting a phenomenon of double magnetic flux, which can increase the magnetic force.

[0039] When coil 31 is energized, a magnetic field is generated, which in turn produces magnetic force. The magnetic force can be linearly changed by controlling the magnitude of the current, thus creating subtle variations that allow for micro-control of airflow and precise control of the attraction force. By controlling the direction of the current, magnetic forces with different magnetic poles can be generated.

[0040] By controlling the magnitude of the current, and with the ability to precisely control the current, the strength of the magnetic field and the suction force can be precisely controlled, ultimately achieving precise adjustment of the negative pressure and effectively improving comfort.

[0041] In one embodiment, a first one-way valve 4 is provided at the air port 12 of the housing 1, and a second one-way valve 5 is provided on the side wall of the housing 1. The first one-way valve 4 is used to form an air intake one-way channel between the air port 12 and the cavity 11, and the second one-way valve 5 is used to form an air outlet one-way channel between the side wall of the housing 1 and the cavity 11.

[0042] In this embodiment, the one-way valve 4 is a single-piece one-way valve or a duckbill valve; by setting the one-way valve 4, when a negative pressure is generated in the cavity 11, the air pressure inside the cavity 11 is less than the external air pressure, and the gas outside the cavity 11 can enter the cavity 11 through the one-way valve 4, thereby realizing the air intake function.

[0043] like Figure 4 As shown, in one embodiment, the flexible member 2 includes a convex ring 21 and a flexible membrane 23. The edge of the flexible membrane 23 is connected to the edge of the convex ring 21 to form a bowl shape, and the magnetic member 22 is disposed in the middle of the flexible membrane 23.

[0044] In this embodiment, the magnetic component 22 is a neodymium alloy, the cross-section of the convex ring 21 is rectangular, the ring wall of the convex ring 21 is perpendicular to the flexible membrane 23, and the edge of the flexible membrane 23 is connected to the edge of the convex ring 21 to form a receiving groove 24. The convex ring 21 and the flexible membrane 23 are integrally formed by injection molding, and the drive component 3 is partially placed in the receiving groove 24 of the flexible component 2.

[0045] Controlling the internal silica, silicone oil, thickness, and processing conditions of the flexible component 2 can all cause changes in the hardness of the flexible component 2. The harder the component, the greater the force required for deformation. Furthermore, the shape of the flexible component 2 can be changed according to different application scenarios.

[0046] The magnetic component 22 is formed in the middle of the flexible film 23 by means of die-cutting. At this time, the magnetic component 22 at the flexible film 23 does not generate magnetism. After the die-cutting is completed, the flexible film 23 (with the built-in magnetic component 22) is placed in a fixture and fixed in a fixed position so that it does not move freely. Then it is put into a magnetization machine for magnetization.

[0047] In one embodiment, the flexible membrane 23 has an annular pleated portion 231 at its edge, and the pleated portion 231 is located around the magnetic element 22.

[0048] In this embodiment, the pleats 231 are wavy. By providing the pleats 231, the resilience of the flexible membrane 23 can be increased. The more pleats there are, the greater the deformation space, and the smaller the stress and force required for the deformation.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A reciprocating magnetic pump, characterized in that, include: A housing, wherein an air vent is provided on one side of the housing; A flexible component, wherein the flexible component and the housing enclose a cavity, an air inlet forms a one-way air inlet channel between the air inlet and the cavity, and an air outlet forms a one-way air outlet channel between the side wall of the housing and the cavity; A magnetic component, wherein the magnetic component is disposed on the flexible component; A driving component is disposed on the side of the flexible component away from the housing. The driving component is used to generate magnetic force to drive the magnetic component to move, thereby causing the flexible component to deform and generate negative pressure.

2. The reciprocating magnetic pump according to claim 1, characterized in that, The flexible component includes a convex ring and a flexible membrane. The edge of the flexible membrane is connected to the edge of the convex ring to form a bowl shape. The magnetic component is embedded in the middle of the flexible membrane.

3. The reciprocating magnetic pump according to claim 2, characterized in that, The convex ring and the flexible membrane are integrally formed.

4. The reciprocating magnetic pump according to claim 2, characterized in that, The flexible membrane has an annular pleated portion at its edge, and the pleated portion is located around the magnetic component.

5. The reciprocating magnetic pump according to claim 1, characterized in that, The driving element includes a coil and a plurality of stacked silicon steel sheets, the silicon steel sheets being fitted over a portion of the coil.

6. The reciprocating magnetic pump according to claim 5, characterized in that, The silicon steel sheet has two notches in an "E" shape, and the coil is embedded in the notches of the silicon steel sheet.

7. The reciprocating magnetic pump according to claim 1, characterized in that, A first one-way valve is provided at the air port of the housing, and a second one-way valve is provided on the side wall of the housing.

8. The reciprocating magnetic pump according to claim 7, characterized in that, The first check valve and the second check valve are single-piece check valves or duckbill valves.

9. The reciprocating magnetic pump according to claim 1, characterized in that, The flexible component and the housing are connected in a sealed manner.

10. The reciprocating magnetic pump according to claim 1, characterized in that, The magnetic component is a permanent magnet or other metal material with magnetic properties.

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