Breast pump

Abstract

The utility model relates to a breast pump. The breast pump comprises a floating assembly and a detection assembly. When milk is loaded in the milk storage assembly, at least part of the floating assembly floats on the liquid level of the milk in the milk storage assembly; the detection assembly is used for detecting position information of the floating assembly floating on the milk liquid surface. In the milk sucking process of the breast pump, the height of the milk liquid level in the milk storage assembly is increased along with increase of the amount of milk in the milk storage assembly, the height of the floating assembly floating on the milk liquid level changes, then the floating assembly gets close to or away from the detection assembly under guiding of the guiding piece, detection data of the detection assembly is changed, and the detection accuracy of the breast pump is improved. Therefore, the milk level height and the milk amount in the milk storage assembly are calculated according to data detected by the detection assembly.

Description

Technical Field

[0001] The present application relates to the technical field of breast pumps, and in particular to a breast pump. Background Art

[0002] As a portable and convenient breast pumping device, breast pumps are attracting more and more attention, and their functions and structures are constantly being improved.

[0003] During the use of the breast pump, it is usually difficult for the user to observe the amount of milk in the milk storage container of the breast pump, which makes it difficult for the user to judge the amount of milk in the milk storage container of the breast pump, and thus difficult to grasp the timing of stopping the breast pump. The inability to accurately detect the amount of milk in the milk storage container during the breast pumping process also makes it difficult for the breast pump to achieve effective automatic control.

[0004] It can be seen that how to monitor the amount of milk stored in the milk storage container is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The present application provides a breast pump, which aims to solve the technical problem of how to monitor the amount of milk stored in a milk storage container in the prior art.

[0006] The present application provides a breast pump, comprising:

[0007] A shield assembly, adapted to fit against a user's breast and at least accommodate a user's nipple;

[0008] a host assembly, including an air pump for providing negative pressure to the shield assembly;

[0009] A milk storage assembly, used for storing milk sucked from the shield assembly;

[0010] Characterized in that the breast pump also includes:

[0011] a floating component, when the milk storage component is loaded with milk, the floating component at least partially floats on the milk liquid surface in the milk storage component;

[0012] A detection component is used to detect the position information of the floating component floating on the surface of the milk liquid.

[0013] Furthermore, the detection component is arranged on the milk storage component or the host component or the shield component.

[0014] Furthermore, the breast pump also includes a guide member, and the guide member is used to guide the floating assembly.

[0015] Furthermore, the detection component includes a Hall sensor, the floating component includes a magnet component and a float component, and the float component is at least partially covered on the surface of the magnet component.

[0016] Further, the detection component includes an inductive sensor, the floating component includes an induction coil and a floating member, and at least part of the floating member is coated on the surface of the induction coil.

[0017] Further, the detection component includes a distance sensor.

[0018] Further, the milk storage component includes:

[0019] A milk storage container provided with an opening;

[0020] A container lid for covering the opening, and the container lid is provided with a milk inlet;

[0021] Wherein, the guiding member is connected to the container lid and extends towards the bottom of the milk storage container.

[0022] Further, the floating component is sleeved on the outer wall of the guiding member.

[0023] Further, the shape of the guiding member is cylindrical or columnar.

[0024] Further, the guiding member is provided with a limiting groove, and the floating component is provided with a limiting protrusion, and the limiting protrusion is embedded in the limiting groove to prevent the floating component from rotating relative to the guiding member.

[0025] Further, the guiding member is provided with a guiding groove, and at least part of the floating component is arranged in the guiding groove and can move along the guiding groove.

[0026] Further, a limiting portion is arranged at one end of the guiding member away from the milk inlet, and the limiting portion is used to prevent the floating component from detaching from the guiding member.

[0027] Further, the guiding member is close to or located at the central axis position of the milk storage component, and the central axis of the milk storage component extends along the up and down direction of the milk storage component.

[0028] The beneficial effects achieved by the present application are as follows: During the milk suction process of the breast pump, the height of the milk liquid level in the milk storage component increases as the amount of milk in the milk storage component increases. The height of the floating component floating on the milk liquid level changes, and then the floating component approaches or moves away from the detection component under the guidance of the guiding member, and further the detection data of the detection component changes. Thus, the height of the milk liquid level and the amount of milk in the milk storage component are calculated according to the data detected by the detection component. In this way, the milk storage amount in the milk storage component is monitored. Description of the Drawings

[0029] Figure 1It is a schematic three-dimensional structure diagram of the first embodiment of the breast pump of the present utility model;

[0030] Figure 2 It is an exploded structure diagram of the first embodiment of the breast pump of the present utility model;

[0031] Figure 3 It is Figure 2 a cross-sectional view taken at A-A in

[0032] Figure 4 It is a schematic three-dimensional structure diagram of the container cover in the first embodiment of the breast pump of the present utility model;

[0033] Figure 5 It is Figure 4 an exploded structure diagram of

[0034] Figure 6 It is a cross-sectional view of the floating assembly in some embodiments of the present utility model;

[0035] Figure 7 It is a cross-sectional view of the second embodiment of the breast pump of the present utility model;

[0036] Figure 8 It is a cross-sectional view of the third embodiment of the breast pump of the present utility model;

[0037] Figure 9 It is a schematic three-dimensional structure diagram of the container cover in the fourth embodiment of the present utility model;

[0038] Figure 10 It is a cross-sectional view of the floating assembly in some embodiments;

[0039] Figure 11 It is a schematic three-dimensional structure diagram of the container cover in the fifth embodiment of the present utility model;

[0040] Figure 12 It is a cross-sectional view of the floating assembly in some embodiments.

[0041] Main unit symbol description:

[0042] 10. Breast pump; 11. Shield assembly; 12. Main unit assembly; 20. Milk storage assembly; 21. Milk storage container; 211. Opening; 22. Container cover; 221. Milk inlet; (30, 30b, 30c). Detection assembly; 31. Hall sensor; 32. Inductive sensor; 33. Distance sensor; (40, 40b, 40c). Floating assembly; 41. Magnet part; (42a, 42b). Float part; 43. Induction coil; 44. Limit protrusion; (50, 50b, 50c). Guide part; 51. Limit groove; 52. Guide groove; 53. Limit part. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar units or units with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0044] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0046] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two units or the interaction relationship between two units. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0048] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0049] Embodiment 1

[0050] Please refer to Figures 1 to 6 , in an embodiment of the present application, a breast pump 10 proposed in the present application includes: a shield assembly 11, a main body assembly 12, a milk storage assembly 20, a floating assembly 40, and a detection assembly 30.

[0051] The shield assembly 11 is used to fit with the user's breast and at least accommodate the user's nipple. The main body assembly 12 includes an air pump for providing negative pressure to the shield assembly 11. The milk storage assembly 20 is used to store the milk sucked out from the shield assembly 11. The floating assembly 40 is disposed in the milk storage assembly 20. When the milk storage assembly 20 is loaded with milk, at least a part of the floating assembly 40 floats on the milk liquid level in the milk storage assembly 20. The detection assembly 30 is used to detect the position information of the floating assembly 40 floating on the milk liquid level.

[0052] During the milk sucking process of the breast pump 10, the shield assembly 11 covers and fits with the user's breast. The shield assembly 11 is provided with a milk sucking channel, and the user's nipple is accommodated in the milk sucking channel. The negative pressure pump of the main body assembly 12 provides negative pressure to the shield assembly 11, and then the milk in the user's breast is sucked out through the negative pressure. The sucked milk is stored through the milk storage assembly 20.

[0053] As the amount of milk in the milk storage assembly 20 increases, the height of the milk liquid level in the milk storage assembly 20 rises. As a result, the height of the floating assembly 40 floating on the milk liquid level changes, causing the floating assembly 40 to approach or move away from the detection assembly 30. Consequently, the position information of the floating assembly 40 detected by the detection assembly 30 floating on the milk liquid level changes. Thus, the height of the milk liquid level and the amount of milk in the milk storage assembly 20 are calculated based on the data detected by the detection assembly 30, and in this way, the milk storage amount in the milk storage assembly 20 is monitored.

[0054] Specifically, when the amount of milk in the milk storage assembly 20 changes, the height of the milk liquid level in the milk storage assembly 20 changes, causing the floating assembly 40 to rise or fall with the change in the height of the milk liquid level under the action of the buoyancy of the milk. During the process of the floating assembly 40 rising or falling in the milk storage assembly 20, the position information of the floating assembly 40 detected by the detection assembly 30 changes. Then, the height of the milk liquid level in the milk storage assembly 20 and the amount of milk in the milk storage assembly 20 are calculated based on the data detected by the detection assembly 30. By installing the detection assembly 30 on the milk storage assembly 20, the main machine assembly 12 or the shield assembly 11, the position of the detection assembly 30 relative to the milk storage assembly 20 is kept relatively fixed. During the process of the floating assembly 40 rising or falling in the milk storage assembly 20, it will approach or move away from the detection assembly 30, so that the position information of the floating assembly 40 can be detected by the detection assembly 30.

[0055] Specifically, during the process of the milk liquid level rising in the milk storage assembly 20, the floating assembly 40 will approach the detection assembly 30, so that the position information of the floating assembly 40 is detected by the detection assembly 30, causing the detection data of the detection assembly 30 to change. Thus, the height of the milk liquid level and the amount of milk in the milk storage assembly 20 are calculated based on the data detected by the detection assembly 30, and in this way, the milk storage amount in the milk storage assembly 20 is monitored.

[0056] In this embodiment, the detection assembly 30 is arranged on the main machine assembly 12, that is, fixed at a certain position inside the main machine assembly. However, in this application, the detection assembly 30 is not limited to being arranged on the main machine assembly 12. In other embodiments of the application, the detection assembly 30 can also be arranged on the milk storage assembly 20 or the shield assembly 11. For example: the detection assembly 30 can be arranged at the top of the milk storage assembly 20 or at a position higher than the top of the detection assembly 30; or, the detection assembly 30 can be arranged at the bottom of the milk storage assembly 20 or at a position lower than the bottom of the milk storage assembly 20.

[0057] In some embodiments of this application, the breast pump 10 further includes a guiding member 50, and the guiding member 50 is used to guide the floating assembly 40.

[0058] The floating component 40 is guided by the guiding member 50, thereby restricting the movement range of the floating component 40, so that the floating component 40 is always within the effective detection range of the detection component 30, ensuring the effectiveness and reliability of the detection result of the detection component 30.

[0059] In some embodiments of the present application, the guiding direction of the guiding member 50 is along the direction close to or away from the detection component 30.

[0060] When the milk liquid level height in the milk storage component 30 changes, the floating component 40 rises and falls with the change of the milk liquid level height. Under the guidance of the guiding member 50, the floating component 40 approaches or moves away from the detection component 30, thereby changing the detection value of the detection component 30, so that the detection component 30 can detect the position information of the floating component 40, and then calculate the height and milk volume of the milk liquid surface in the milk storage component 20 according to the position information of the floating component 40.

[0061] In some embodiments of the present application, the guiding member 50 makes the floating component 40 move in the vertical direction.

[0062] The milk liquid surface in the milk storage component 20 is in a horizontal state under the action of gravity. As the amount of milk in the milk storage component 20 changes, the height of the milk liquid surface in the milk storage component 20 will change in the vertical direction. The floating component 40 is guided in the vertical direction by the guiding component, so that the floating component 40 approaches or moves away from the detection component 30 in the vertical direction, avoiding the deviation of the floating component 40 in the horizontal direction due to the shaking of the breast pump 10 or other reasons, so that the change amount of the distance between the floating component 40 and the detection component 30 is equal to the change amount of the milk liquid level height, so that the position information data detected by the detection component 30 is more reliable and effective.

[0063] In some embodiments of the present application, the milk storage component 20 includes: a milk storage container 21 and a container cover 22. The milk storage container 21 is provided with an opening 211. The container cover 22 is used to seal the opening 211, and the container cover 22 is provided with a milk inlet 221. Among them, the guiding member 50 is connected to the container cover 22 and extends towards the bottom of the milk storage container 21.

[0064] During the milk extraction process of the breast pump 10, the liquid level height of the milk in the milk storage container 21 gradually rises from the bottom of the milk storage container 21 and gradually approaches the opening 211 of the milk storage container 21. By extending the guiding member 50 towards the bottom of the milk storage container 21, the moving direction of the floating assembly 40 is made to be towards or away from the bottom of the milk storage container 21, so that the floating assembly 40 can rise and fall under the guidance of the guiding member 50 with the change of the liquid level height of the milk, and the height change of the floating assembly 40 is equal to the change of the liquid level height of the milk. When the detection assembly 30 detects a change in the height of the floating assembly 40, the change amount of the liquid level height of the milk can be calculated, thereby improving the reliability and effectiveness of the position information data of the floating assembly 40 detected by the detection assembly 30.

[0065] The guiding member 50 is arranged on the container cover 22. When the container cover 22 is removed from the milk storage assembly 20, the guiding member 50 and the floating assembly 40 can be removed together with the container cover 22 to facilitate the cleaning of the milk storage container 21.

[0066] As Figures 4 - 5 shown, in this embodiment, the shape of the guiding member 50 is cylindrical, and the floating assembly 40 is sleeved on the outer wall of the guiding member 50.

[0067] The shape of the floating assembly 40 is annular. The floating assembly 40 is sleeved on the outer wall of the guiding member 50, and then the guiding member 50 guides the floating assembly 40, so that the displacement of the floating assembly 40 only changes along the rising and falling direction of the milk liquid level, that is, the change amount of the distance between the floating assembly 40 and the detection assembly 30 is equal to the change amount of the liquid level height of the milk, thereby improving the reliability and effectiveness of the measured data of the liquid level height of the milk in the milk storage assembly 20 and the milk volume data.

[0068] In some embodiments of the present application, the milk inlet 221 is within the inner wall range of the guiding member 50.

[0069] Make the central axis of the milk storage assembly 20 pass through the milk inlet 221, and make the central axis of the milk storage assembly 20 within the cylindrical range of the guiding member 50, so that the floating assembly 40 moves at a position close to the center of the milk storage assembly 20, thereby reducing the influence of inclination on the detection result and further improving the reliability and effectiveness of the measured data of the liquid level height of the milk in the milk storage assembly 20 and the milk volume data.

[0070] In some embodiments of the present application, the guiding member 50 is provided with a limiting groove 51, and the floating assembly 40 is provided with a limiting protrusion 44. The limiting protrusion 44 is embedded in the limiting groove 51 to prevent the floating assembly 40 from rotating relative to the guiding member 50.

[0071] The cooperation between the limiting groove 51 and the limiting protrusion 44 prevents the floating component 40 from rotating relative to the guiding member 50, thereby avoiding the displacement of the magnet member 41 or the induction coil 43 in the horizontal direction, ensuring that the detection component 30 can effectively detect the magnet member 41 or the induction coil 43, and thus improving the reliability and effectiveness of the detection structure of the detection component 30.

[0072] In some embodiments of the present application, a limiting portion 53 is provided at one end of the guiding member 50 away from the milk inlet 221, and the limiting portion 53 is used to prevent the floating component 40 from detaching from the guiding member 50.

[0073] When the milk liquid level height in the milk storage component 20 is lower than the lowest point of the guiding member 50, the floating component 40 is limited by the limiting portion 53, thereby avoiding the floating component 40 from detaching from the guiding member 50, and thus ensuring that the guiding member 50 can always guide the floating component 40, and improving the reliability of the guiding function of the guiding member 50.

[0074] In this embodiment, the number of guiding members 50 is one, and the guiding member 50 guides the floating component 40. In other embodiments of the present application, the number of guiding members 50 is two or more, the number of detection components 30 is equal to the number of floating components 40, and each detection component 30 detects the position information of one floating component 40.

[0075] In some embodiments of the present application, the guiding member 50 is close to or located at the central axis position of the milk storage component 20, and the central axis of the milk storage component 20 is along the up and down direction of the milk storage component 20.

[0076] When the milk storage component 20 is tilted, the change in the milk liquid level height at the inner edge position of the milk storage component 20 is relatively large, and the change in the milk liquid level height at the middle position of the milk storage component 20 is relatively small. By setting the central axis of the guiding member 50 at the central axis position of the milk storage component 20, the floating component 40 is located on the central axis of the milk storage component 20, thereby reducing the influence on the height of the floating component 40 due to the tilt of the milk storage component 20, and thus improving the accuracy and reliability of the data information detected by the detection component 30.

[0077] In this embodiment, the detection component 30 is a Hall sensor 31, and the floating component 40 includes a magnet member 41 and a float member 42a. Of course, in other embodiments of the present application, the detection component 30 can be configured as an inductive sensor or a distance sensor, and the detection component 30 of the present application is not limited to the three types of sensors described herein.

[0078] During the rising process of the milk level in the milk storage assembly 20, the float member 42a will rise with the rising of the milk level under the buoyancy of the milk, and then drive the magnet member 41 to rise through the float member 42a. The Hall sensor 31 is installed in the main machine assembly 12 and is located directly above the magnet member 41. Since in the Hall sensor 31, the magnitude of the Hall voltage is proportional to the magnetic field strength and the current, therefore, by measuring the magnitude of the Hall voltage, the magnitude of the magnetic field strength can be calculated, and then the distance can be calculated. When the magnet member 41 rises, the magnet member 41 will approach the Hall sensor 31, thereby increasing the magnetic field strength at the Hall sensor 31, further increasing the Hall voltage in the Hall sensor 31, and then calculating the position information of the magnet member 41 according to the Hall voltage, so as to measure the milk level height data and milk volume data in the milk storage assembly 20.

[0079] The floating assembly 40 is guided by the guiding member 50, so that the displacement of the magnet member 41 only changes along the rising and falling direction of the milk level, that is, the change amount of the distance between the magnet member 41 and the Hall sensor 31 is equal to the change amount of the milk level height, thereby improving the reliability and effectiveness of the measured milk level height data and milk volume data in the milk storage assembly 20.

[0080] By arranging the guiding member 50 along the central axis of the milk storage assembly 20, the influence of inclination on the detection result is reduced, and the reliability and effectiveness of the measured milk level height data and milk volume data in the milk storage assembly 20 are further improved.

[0081] In some embodiments of the present application, the number of Hall sensors 31 is at least two, and the number of magnet members 41 is equal to the number of Hall sensors 31.

[0082] Each Hall sensor 31 detects the position information of a magnet member 41, and then the fitting value of the position data of multiple magnet members 41 is fitted through the data detected by multiple Hall sensors 31. Thus, the milk level height data and milk volume data in the milk storage assembly 20 are measured according to the fitting value of the position data of multiple magnet members 41, improving the detection accuracy.

[0083] In some embodiments of the present application, the float member 42a is coated on the surface of the magnet member 41.

[0084] By wrapping the magnet member 41 with the float member 42a, the magnet member 41 is prevented from contacting the milk, and the magnet member 41 is prevented from contaminating the milk.

[0085] In some embodiments of the present application, the material of the float member 42a includes food-grade materials such as silica gel and polypropylene (PP), thereby preventing the floating assembly 40 from contaminating the milk.

[0086] In some embodiments of the present application, the float member 42a can be hollow or solid.

[0087] Embodiment II

[0088] Please refer to Figure 7 , in some embodiments of the present application, the detection component 30b includes an inductive sensor 32, and the floating component 40b includes an induction coil 43 and a float member 42b.

[0089] During the rising process of the milk liquid level in the milk storage component 20, the float member 42b will rise with the rising of the milk liquid level under the action of the buoyancy of the milk, and then drive the induction coil 43 to rise through the float member 42b. The inductive sensor 32 is installed in the host component 12 and is located directly above the induction coil 43. Since in the inductive sensor 32, when the induction coil 43 approaches the inductive sensor 32 and current passes through them, the magnetic field will change, thereby inducing an electromotive force in the inductive sensor 32. The magnitude of this induced electromotive force depends on the distance between the induction coil 43 and the inductive sensor 32. Therefore, by measuring the changing inductance value, the position change of the induction coil 43 relative to the inductive sensor 32 can be determined. When the induction coil 43 rises, the induction coil 43 will approach the inductive sensor 32, thereby increasing the inductance value at the inductive sensor 32. Then, the position information of the induction coil 43 is calculated based on the inductance value, so as to calculate the milk liquid level height data and milk volume data in the milk storage component 20.

[0090] The floating component 40b is guided by the guiding member 50, so that the displacement of the induction coil 43 only changes along the rising and falling direction of the milk liquid level, that is, the change amount of the distance between the induction coil 43 and the inductive sensor 32 is equal to the change amount of the milk liquid level height, thereby improving the reliability and effectiveness of the calculated milk liquid level height data and milk volume data in the milk storage component 20.

[0091] In some embodiments of the present application, the number of inductive sensors 32 is at least two, and the number of induction coils 43 is equal to the number of inductive sensors 32.

[0092] Each inductive sensor 32 detects the position information of an induction coil 43, and then the fitting value of the position data of multiple induction coils 43 is obtained by fitting the data detected by multiple inductive sensors 32. Thus, the milk liquid level height data and milk volume data in the milk storage component 20 are calculated based on the fitting value of the position data of multiple induction coils 43, improving the detection accuracy.

[0093] In some embodiments of the present application, as Figure 6 shown, the float member 42b is coated on the surface of the induction coil 43.

[0094] The induction coil 43 is wrapped by the float member 42b, thereby preventing the induction coil 43 from contacting the milk and preventing the induction coil 43 from contaminating the milk.

[0095] In some embodiments of the present application, the material of the float member 42b includes food-grade materials such as silica gel and polypropylene (PP), thereby preventing the floating assembly 40b from contaminating the milk.

[0096] In some embodiments of the present application, the float member 42b can be hollow or solid.

[0097] Embodiment Three

[0098] Please refer to FIG. 8. In some embodiments of the present application, the detection assembly 30c includes a distance sensor 33.

[0099] During the rising process of the milk liquid level in the milk storage assembly 20, the floating assembly 40c will rise with the rising of the milk liquid level under the action of the buoyancy of the milk. The distance sensor 33 is installed in the host assembly 12 and is located directly above the floating assembly 40c. When the floating assembly 40c rises, it will approach the distance sensor 33, thereby causing the detection data of the distance sensor 33 to change, and then calculating the position information of the floating assembly 40c according to the detection data, so as to calculate the milk liquid level height data and the milk volume data in the milk storage assembly 20.

[0100] The floating assembly 40c is guided by the guiding member 50, so that the displacement of the floating assembly 40c only changes along the rising and falling direction of the milk liquid level, that is, the change amount of the distance between the floating assembly 40c and the distance sensor 33 is equal to the change amount of the milk liquid level height, thereby improving the reliability and effectiveness of the calculated milk liquid level height data and milk volume data in the milk storage assembly 20.

[0101] It can be understood that the milk liquid level in the milk storage assembly 20 will generate oscillating ripples due to shaking or tilting, resulting in an uneven milk liquid level, and further reducing the accuracy of the detection result. Since the floating assembly 40c is a regular solid structure, it has a stable plane. The floating assembly 40c rises and falls with the change of the milk liquid level height. By detecting the change of the height of the floating assembly 40c by the distance sensor 33, the influence of factors such as milk liquid level ripples on the detection result is reduced, and the reliability and effectiveness of the detection result are improved.

[0102] In some embodiments of the present application, the number of the distance sensors 33 is at least two, and the number of the floating assemblies 40c is equal to the number of the distance sensors 33.

[0103] Each distance sensor 33 detects the position information of a floating component 40c. Then, based on the data detected by multiple distance sensors 33, the fitted values of the position data of multiple floating components 40c are obtained through fitting. Thereby, the milk liquid level height data and the milk volume data in the milk storage component 20 are calculated according to the fitted values of the position data of multiple floating components 40c, improving the detection accuracy.

[0104] In some embodiments of the present application, the distance sensor 33 includes at least one of a laser ranging sensor, an infrared ranging sensor, an ultrasonic ranging sensor, or a camera ranging sensor.

[0105] Embodiment IV

[0106] Please refer to Figure 9 , in some embodiments of the present application, the guiding member 50b is columnar in shape, and each guiding member 50b is sleeved with at least one floating component 40.

[0107] As Figure 10 shown, the floating component 40 is annular in shape. The floating component 40 is sleeved on the outer wall of the guiding member 50b. Then, the guiding member 50b guides the floating component 40, so that the displacement of the floating component 40 only changes along the rising and falling direction of the milk liquid level, that is, the change amount of the distance between the floating component 40 and the detection component 30 is equal to the change amount of the milk liquid level height. Thereby, the reliability and effectiveness of the milk liquid level height data and the milk volume data in the milk storage component 20 measured are improved.

[0108] In this embodiment, the number of guiding members 50b is at least two. The guiding members 50b are arranged in a circumferential array along the central axis of the milk storage component 20, and the guiding members 50b are located outside the inner wall of the milk inlet 221.

[0109] Multiple guiding members 50b respectively guide multiple floating components 40. Multiple detection components 30 respectively detect the position information of multiple floating components 40, and through data analysis and calculation, the position information of multiple floating components 40 is comprehensively analyzed. Then, the milk liquid level height data and the milk volume data in the milk storage component 20 are fitted, improving the detection accuracy and reliability of the milk liquid level height data and the milk volume data.

[0110] Make the central axis of the milk storage component 20 pass through the milk inlet 221, and make the central axis of the milk storage component 20 be at the center of the array of the guiding members 50b. Then, the floating component 40 moves at a position close to the center of the milk storage component 20, reducing the influence of inclination on the detection result, and further improving the reliability and effectiveness of the milk liquid level height data and the milk volume data in the milk storage component 20 measured.

[0111] In some embodiments of the present application, a limiting portion 53 is provided at one end of the guiding member 50b away from the milk inlet 221, and the limiting portion 53 is used to prevent the floating assembly 40 from detaching from the guiding member 50b.

[0112] Embodiment Five

[0113] Please refer to Figures 11 to 12 , in some embodiments of the present application, the guiding member 50c is provided with a guiding groove 52, and at least a part of the floating assembly 40 is disposed in the guiding groove 52 and can move along the guiding groove 52. When the milk liquid level rises to the height of the guiding groove 52, the milk enters the guiding groove 52, so that the floating assembly 40 in the guiding groove 52 can float on the milk liquid level.

[0114] The floating assembly 40 is disposed in the guiding groove 52, and then the side wall of the guiding groove 52 is used to guide the floating assembly 40, so that the displacement of the floating assembly 40 only changes along the rising and falling direction of the milk liquid level, that is, the change amount of the distance between the floating assembly 40 and the detection assembly 30 is equal to the change amount of the milk liquid level height in the milk storage assembly 20, thereby improving the reliability and effectiveness of the measured milk liquid level height data and milk volume data in the milk storage assembly 20.

[0115] In this embodiment, the number of the guiding members 50c is at least two, the guiding members 50c are arranged in a circumferential array along the central axis of the milk storage assembly 20, and the guiding members 50c are located outside the inner wall of the milk inlet 221.

[0116] Multiple guiding members 50c are respectively used to guide multiple floating assemblies 40. Multiple detection assemblies 30 respectively detect the position information of the multiple floating assemblies 40, and the position information of the multiple floating assemblies 40 is comprehensively analyzed through data analysis and calculation, and then the milk liquid level height data and milk volume data in the milk storage assembly 20 are fitted, so as to improve the detection accuracy and reliability of the milk liquid level height data and milk volume data.

[0117] The central axis of the milk storage assembly 20 passes through the milk inlet 221, and the central axis of the milk storage assembly 20 is located at the center of the array of the guiding members 50c, so that the floating assembly 40 moves at a position close to the center of the milk storage assembly 20, thereby reducing the influence of inclination on the detection result and further improving the reliability and effectiveness of the measured milk liquid level height data and milk volume data in the milk storage assembly 20.

[0118] In some embodiments of the present application, a limiting portion 53 is provided at one end of the guiding member 50c away from the milk inlet 221, and the limiting portion 53 is used to prevent the floating assembly 40 from detaching from the guiding member 50c.

[0119] When the milk level in the milk storage assembly 20 is lower than the lowest point of the guiding member 50c, the floating assembly 40 is limited by the limiting portion 53, thereby preventing the floating assembly 40 from disengaging from the guiding member 50c, and ensuring that the guiding member 50c can always guide the floating assembly 40, thus improving the reliability of the guiding function of the guiding member 50c.

[0120] In the description of this specification, the descriptions with reference to the terms "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0121] In addition, the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A breast pump, comprising: A shield assembly, adapted to fit against a user's breast and at least accommodate a user's nipple; a host assembly, including an air pump for providing negative pressure to the shield assembly; A milk storage assembly, used for storing milk sucked from the shield assembly; Characterized in that the breast pump also includes: a floating component, when the milk storage component is loaded with milk, the floating component at least partially floats on the milk liquid surface in the milk storage component; A detection component is used to detect the position information of the floating component floating on the surface of the milk liquid.

2. The breast pump according to claim 1, characterized in that: The detection component is arranged on the milk storage component, the host component or the shield component.

3. The breast pump according to claim 1, characterized in that: The breast pump also includes a guide member, which is used to guide the floating assembly.

4. The breast pump according to claim 1, characterized in that: The detection component includes a Hall sensor, and the floating component includes a magnet component and a float component, wherein the float component is at least partially covered on the surface of the magnet component.

5. The breast pump according to claim 1, characterized in that: The detection component includes an inductive sensor, and the floating component includes an induction coil and a float member, wherein the float member is at least partially covered on the surface of the induction coil.

6. The breast pump according to claim 1, characterized in that: The detection component includes a distance sensor.

7. The breast pump according to claim 3, characterized in that: The milk storage assembly comprises: A milk storage container, wherein the milk storage container is provided with an opening; A container cover, the container cover is used to cover the opening, and the container cover is provided with a milk inlet; Wherein, the guide member is connected to the container cover and extends toward the bottom of the milk storage container.

8. The breast pump according to claim 3, characterized in that: The floating assembly is sleeved on the outer wall of the guide member.

9. The breast pump according to claim 8, characterized in that The guide member is in the shape of a cylinder or a column.

10. The breast pump according to claim 8, characterized in that The guide member is provided with a limiting groove, and the floating component is provided with a limiting protrusion, and the limiting protrusion is embedded in the limiting groove to prevent the floating component from rotating relative to the guide member.

11. The breast pump according to claim 3, characterized in that: The guide member is provided with a guide groove, and the floating assembly is at least partially arranged in the guide groove and can move along the guide groove.

12. The breast pump according to claim 7, characterized in that A limiting portion is arranged at one end of the guide member away from the milk inlet, and the limiting portion is used to prevent the floating assembly from being separated from the guide member.

13. The breast pump according to any one of claims 3, 7-11, characterized in that: The guide member is close to or located at the center axis of the milk storage assembly, and the center axis of the milk storage assembly extends along the up-and-down direction of the milk storage assembly.

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