Breast pump

Abstract

The utility model relates to the field of mother and baby products, and provides a breast pump. The utility model provides a breast pump. The breast pump comprises a milk storage container, a breast pumping shield, a negative pressure system, a milk flow path and an ultrasonic sensor, the milk flow path comprises at least one part of a milk flow path for milk to be discharged into the milk storage container from the milk sucking channel; the ultrasonic sensor is used for detecting the flow rate of the milk passing through the milk flow path in a non-contact manner. According to the breast pump, the ultrasonic sensor is arranged in a mode of being not in contact with the milk to detect the milk flow, so that the milk flow can be accurately measured, the service life of the ultrasonic sensor is prolonged, and the safety and sanitation of the measuring process of the breast pump are ensured.

Description

Technical Field

[0001] The utility model relates to the field of maternal and infant products, in particular to a breast pump. Background Art

[0002] A breast pump is a device used to express and store milk accumulated in the mammary glands. It is generally used when the baby is unable to suckle directly, or when the mother has nipple problems but still wishes to breastfeed.

[0003] In existing breast pumps, milk flow detection is usually achieved by installing optical sensors in the milk flow path of the breast pump, such as on the one-way valve, to achieve the flow detection function. However, since the related accessories need to be cleaned and disinfected, on the one hand, it is easy to damage the service life of the sensor. On the other hand, users can easily disinfect the cleaning parts in a microwave oven, but placing the parts with sensors in the microwave oven is prone to safety accidents. Therefore, the technology related to breast pump flow detection needs to be improved. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a breast pump that improves the flow detection requirements of the breast pump and is safe and hygienic.

[0005] To solve the above problems, the present invention provides the following technical solutions: a breast pump comprising: a milk storage container for storing milk; a breast shield comprising a flange that fits the breast and a milk suction channel for accommodating the nipple; a negative pressure system for directly or indirectly applying negative pressure to the nipple channel to suck out the milk and discharge it into the milk storage container; a milk flow path comprising at least a portion of the milk flow path through which milk is discharged from the milk suction channel into the milk storage container; and an ultrasonic sensor for detecting the flow rate of milk passing through the milk flow path in a non-contact manner.

[0006] In some embodiments, the ultrasonic sensor includes a transmitting end for transmitting signals and a receiving end for receiving signals.

[0007] In some embodiments, the transmitting end is a piezoelectric ultrasonic sensor assembly, which includes a piezoelectric ceramic substrate that vibrates to generate ultrasonic waves and an electrode that applies current to the piezoelectric ceramic substrate to cause the piezoelectric ceramic substrate to vibrate; the receiving end is used to receive ultrasonic waves reflected from the transmitting end and returned after encountering an obstacle, so as to convert the ultrasonic waves into electrical signals.

[0008] In some embodiments, the milk flow path has an outer wall that does not contact milk, and the ultrasonic sensor is disposed on or near the outer wall.

[0009] In some embodiments, the breast pump further comprises a one-way valve; the milk flow path is in communication with and between the breast pumping passage and the one-way valve; at least a portion of the outer wall of the milk flow path is exposed outside the milk storage container.

[0010] In some embodiments, the breast pumping shield is in liquid communication with the milk storage container; the breast pump further comprises a negative pressure chamber and a one-way valve in communication with the breast pumping passage; the milk flow path is in communication with and between the negative pressure chamber and the one-way valve; at least a portion of the one-way valve is located inside the milk storage container, and milk flows into the milk storage container through the one-way valve; at least a portion of the outer wall of the milk flow path is shared with the sidewall of the milk storage container.

[0011] In some embodiments, the ultrasonic sensor is disposed on the entire or a portion of the outer wall.

[0012] In some embodiments, the breast pump further comprises a one-way valve in communication with the breast pumping passage, and milk flows into the milk storage container through the one-way valve; the breast pump further comprises a main housing assembled with the milk storage container, and the negative pressure system is disposed inside the main housing; the ultrasonic sensor is mounted on the inner sidewall of the main housing at least in alignment with the one-way valve, and / or the ultrasonic sensor is mounted on the outer sidewall of the main housing at least in alignment with the one-way valve.

[0013] In some embodiments, the breast pump further comprises a one-way valve in communication with the breast pumping passage, and milk flows into the milk storage container through the one-way valve; the ultrasonic sensor is mounted on the outer sidewall of the milk storage container at least in alignment with the one-way valve.

[0014] In some embodiments, the ultrasonic sensor is aligned with the one-way valve away from the narrow end of the breast pumping passage.

[0015] In some embodiments, the milk storage container and the breast pumping shield are assembled in connection, and a gap space is provided between the milk storage container and the breast pumping shield, the ultrasonic sensor is mounted on the gap space, and the gap space is at least in alignment with the milk flow path.

[0016] In some embodiments, the breast pump further comprises a one-way valve, and the gap space is at least in alignment with the one-way valve.

[0017] In some embodiments, the breast pumping passage comprises an inner sidewall facing the nipple and an outer sidewall facing away from the nipple, and the ultrasonic sensor is mounted on the outer sidewall of the breast pumping passage.

[0018] In some embodiments, the breast pump further includes a main body housing assembled with the breast shield, the negative pressure system is disposed within the main body housing; the main body housing includes an outer side surface corresponding to the milk suction channel; the ultrasonic sensor is installed on the outer side surface of the main body housing at least aligned with the position of the milk suction channel.

[0019] The beneficial effects of the present invention are as follows: the ultrasonic sensor of the breast pump of the present invention detects the flow rate of milk passing through the milk flow path in a non-contact manner, so that the ultrasonic sensor and other related electronic components will not contaminate the milk, thereby ensuring the safety and hygiene of the milk; at the same time, when the related accessories of the breast pump need to be cleaned or placed in a microwave for disinfection, damage to the ultrasonic sensor or safety accidents can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of a first embodiment of a breast pump according to the present invention.

[0021] Figure 2 This is a cross-sectional schematic diagram of a first embodiment of a breast pump according to the present invention.

[0022] Figure 3 This is a cross-sectional schematic diagram of a second embodiment of a breast pump according to the present invention.

[0023] Figure 4 This is a cross-sectional schematic diagram of a third embodiment of a breast pump according to the present invention.

[0024] Figure 5 This is a cross-sectional schematic diagram of a fourth embodiment of a breast pump according to the present invention.

[0025] Figure 6 for Figure 5 A simple expression diagram of .

[0026] Figure 7 This is a cross-sectional schematic diagram of an embodiment of the milk flow path of the present invention.

[0027] Figure 8 This is a cross-sectional schematic diagram of another embodiment of the milk flow path of the present invention.

[0028] Figure 9 This is a cross-sectional view of a fifth embodiment of a breast pump according to the present invention.

[0029] Figure 10 for Figure 9 A simple expression diagram of .

[0030] Figure 11 This is a schematic diagram of a sixth embodiment of a breast pump according to the present invention.

[0031] Figure 12It is a schematic view of the breast pump embodiment seven of the utility model.

[0032] Figure 13 It is a schematic view of the breast pump embodiment eight of the utility model.

[0033] Reference signs:

[0034] 100, breast pump, 101, main machine, 110, milk storage container, 111, breast shield, 121, flange, 12a, breast passage, 12b, milk outlet, 112, negative pressure system, 11a, milk flow path, 113, ultrasonic sensor, 114, diaphragm, 115, one-way valve, 12c, milk inlet, 11b, outer wall, 116, negative pressure bin, 117, main machine shell, 122, air pump, 13a, narrow end, 141, main machine shell inner side wall, 142, main machine shell outer side wall, 143, milk storage container outer side wall, 144, milk storage container inner side wall, 132a, ultrasonic sensor transmitting end, 132b, ultrasonic sensor receiving end, 161, detection section side wall, 12d, gap vacancy, 12f, breast passage outer side wall, 117a, main machine shell outer side. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. The examples of the examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar units or units with the same or similar functions throughout. The examples described below by reference to the drawings are exemplary and are used to explain the utility model only, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific examples described herein are only used to explain the utility model and cannot be used to limit the utility model.

[0036] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or units referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0037] In addition, the terms "first", "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the description of the utility model, it needs to explain, unless another explicit stipulation and limit, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electric connection or can communicate with each other;It can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication or the interaction of two units of two units inside.For ordinary skilled in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0039] In the utility model, unless another explicit stipulation and limit, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature is higher than the second feature in horizontal height.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature is less than the second feature in horizontal height.

[0040] The following disclosure provides many different embodiments or examples for implementing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can refer to the same reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0041] As Figures 1-13 As shown in the drawings, the breast pump 100 of the present application comprises a breast shield 111, a milk storage container 110 and a main machine 101. The breast shield 111, the milk storage container 110 and the main machine 101 can be detachably assembled into an integrated structure, or can be a split structure, and the present application does not limit whether it is an integrated structure or a split structure.

[0042] The breast shield 111 is used to cover the human breast and fit the breast. The breast shield comprises a flared flange 121 for fitting the breast, and a breast pumping passage 12a for accommodating the nipple. The breast pumping passage is provided with a milk outlet 12b, through which milk can flow into the milk storage container 110.

[0043] The milk storage container 110 is used to receive and store the milk collected by the breast shield 111, and the milk storage container 110 is in liquid communication with the breast shield 111.

[0044] Optionally, the milk storage container includes a milk cover, a milk bowl, a milk bottle, etc., which are not limited in the present application.

[0045] The host 101 is also provided with a negative pressure mechanism 112, which can directly or indirectly apply negative pressure to the breast shield to suck the breast milk into the milk storage container. Directly applying negative pressure to the breast shield is that the negative pressure mechanism 112 for generating negative pressure directly communicates with the breast shield through the air pipe to generate negative pressure and suck the breast milk into the milk storage container; indirectly applying negative pressure to the breast shield is that the negative pressure mechanism 112 for generating negative pressure first transmits negative pressure to a deformable gas-liquid separation component, such as a diaphragm 114 or an air bag, and then indirectly applies negative pressure to the breast shield through the vibration or deformation of the diaphragm or air bag to suck the breast milk into the milk storage container.

[0046] The negative pressure mechanism includes but is not limited to an air pump, a piezoelectric pump, a diaphragm pump, a hydraulic pump, a mechanical pump, etc., which are not limited in the present application.

[0047] Optionally, the host 101 can also include one or more of the following components: an energy supply module, a negative pressure gas circuit, a control circuit board, and an electromagnetic valve.

[0048] In the present application, in order to make the milk collected from the breast shield flow into the milk storage container, the breast pump of the present application also includes a milk flow path 11a, which includes at least a part of the milk flow path from the breast shield to the milk storage container.

[0049] The breast pump of the present application also includes an ultrasonic sensor 113 for detecting the flow rate of the milk passing through the milk flow path in a non-contact manner. In the present application, the ultrasonic sensor includes a transmitting end for transmitting signals and a receiving end for receiving signals. The transmitting end is a piezoelectric ultrasonic sensor assembly, which includes a piezoelectric ceramic substrate that vibrates to generate ultrasonic waves and electrodes that apply current to the piezoelectric ceramic substrate to make it vibrate; the receiving end is used to receive the ultrasonic waves reflected by the transmitting end and returned by encountering an obstacle, so as to convert the ultrasonic waves into electrical signals.

[0050] According to the above scheme, the ultrasonic sensor generally utilizes the propagation characteristics of sound to detect the flow of milk in the milk flow path, and infers the milk flow in the milk flow path according to the change of the sound characteristics. When the milk passes through the milk flow path, the noise spectrum generated by the milk flow can be analyzed by analyzing the sound generated by the ultrasonic sensor when the milk passes through, so as to further obtain the milk flow. Since the ultrasonic sensor is easily affected by external noise such as environmental noise or other mechanical vibration, a plurality of groups can be arranged around the whole circumference of the milk flow path during actual installation, and the parameters obtained by the plurality of acoustic sensors are integrated to obtain a more accurate milk flow.

[0051] The present application will be described in detail below according to specific embodiments.

[0052] Embodiment one:

[0053] Please refer to Figures 1-2 The first embodiment provided by the present application is shown in FIG. 1, which includes a milk storage container 110, a breast shield 111, a main machine 101, a milk flow path 11a and an ultrasonic sensor 113. The milk storage container is used to store the milk sucked from the human breast. The breast shield 111 includes a flange 121 fitted with the breast and a breast passage 12a accommodating the nipple. The breast passage is provided with a milk outlet 12b through which the milk can flow into the milk storage container.

[0054] The main machine 101 includes a main machine shell 117, and a negative pressure system 112 is arranged in the main machine shell. The negative pressure system directly or indirectly applies negative pressure to the breast passage to suck the milk out and discharge it into the milk storage container. The milk flow path at least includes a part of the milk flow path from the breast passage to the milk storage container.

[0055] Optionally, in the first embodiment, the milk storage container, the main machine and the breast shield of the breast pump are an integrated detachable assembly structure.

[0056] According to the above scheme, it can be understood that the milk flow path 11a at least includes a part of the milk flow path in which the milk self-suction channel is discharged into the milk storage container. It can be understood that, in some embodiments, the milk flow path 11a includes all the milk flow paths required to be passed through by the milk self-suction channel to be discharged into the milk storage container, for example, after the milk is sucked from the human breast, it needs to pass through the breast pump channel 12a, and / or the one-way valve 115, and / or the negative pressure chamber 116, and / or the milk inlet 12c of the milk storage container, and the above-mentioned components passed by the milk are all included in the milk flow path; and in other embodiments, the milk flow path includes part of the milk flow path required to be passed through by the milk self-suction channel to be discharged into the milk storage container, for example, after the milk is sucked from the human breast, it passes through the breast pump channel 12a and the one-way valve 115 to be discharged into the milk storage container, and the above-mentioned milk flow path includes the breast pump channel or the one-way valve 115.

[0057] According to the above scheme, it can be understood that, as shown in Figures 1-2 The breast pump further includes a one-way valve 115 connected to the breast pump channel, and the milk flows into the milk storage container through the one-way valve, and the outer wall of the one-way valve contacts the inner wall of the milk storage container.

[0058] It can be understood that, in the first embodiment, the milk flow path passes through the one-way valve, and it can be understood that the one-way valve 115 is part of the milk flow path, and the ultrasonic sensor 113 is used to detect the flow of the milk passing through the milk flow path in a non-contact manner with the milk, that is, in the first embodiment, the ultrasonic sensor is used to detect the flow of the milk passing through the one-way valve 115 in a non-contact manner with the milk.

[0059] In the present application, the main machine shell 117 includes an inner wall 141 and an outer wall 142, and the inner wall 141 forms an inner cavity for accommodating internal electronic components such as a negative pressure system or other electronic components. The outer wall 142 of the main machine shell 117 faces the milk storage container 110.

[0060] In the first embodiment, the ultrasonic sensor 113 is mounted on the inner wall 141 of the main machine shell and is aligned with the position of the one-way valve 115. It can be understood that the ultrasonic sensor is mounted on the inner wall 141 of the main machine shell and is aligned with the position of the one-way valve 115, and when the milk flows from the one-way valve 115, the ultrasonic sensor can detect the flow of the milk passing through the one-way valve, that is, the ultrasonic sensor 113 detects the flow of the milk passing through the one-way valve 115 in a non-contact manner with the milk, ensuring the safety and hygiene of the milk. When the breast pump is not needed, the milk storage container and the breast pump cover are detached from the main machine shell, so that the ultrasonic sensor is separated from the milk storage container and the breast pump cover, so that the milk storage container and the breast pump cover can be cleaned, milked, disinfected and other operations, and the ultrasonic sensor 113 will not affect any of the above operation processes, so as to realize complete non-contact between the ultrasonic sensor and the milk.

[0061] In this embodiment, the ultrasonic sensor 113 is preferably aligned with the narrow end 13a of the one-way valve 115, which is away from the milk extraction passage. This narrow end 13a is the end of the one-way valve 115 that is away from the milk extraction passage 12a. Milk flowing through this narrow end is more concentrated, stable, and uniform, resulting in better measurement data. Furthermore, because milk undergoes a certain degree of rectification as it passes through the one-way valve, this narrow end 13a reduces turbulence, enabling the ultrasonic sensor to obtain more accurate data. Furthermore, because this location is relatively far from the direct extraction point, it is subject to less pressure fluctuations, providing a more stable measurement environment.

[0062] Example 2

[0063] like Figure 3 As shown, in the second embodiment, the ultrasonic sensor can be installed on the outer side wall 142 of the main body housing at least aligned with the position of the one-way valve.

[0064] In the second embodiment, the outer wall of the one-way valve 115 contacts the inner wall 144 of the milk storage container, and the outer wall 142 of the main body housing 117 contacts the outer wall 143 of the milk storage container at least at the position corresponding to the one-way valve 115; preferably, the outer wall of the one-way valve is in close contact with the inner wall of the milk storage container, and the position where the inner wall 144 of the milk storage container contacts the outer wall of the one-way valve 115 is inclined, and the inclination direction is inclined toward the inside of the milk storage container. The inclined design improves the continuity and smoothness of liquid flow, so that the flow rate of milk is reduced when passing through, the occurrence of turbulence is reduced, and a more stable measurement environment is provided to the ultrasonic sensor, thereby obtaining more reliable flow data. The outer wall of the main body housing is in close contact with the milk storage container at least at the position corresponding to the one-way valve.

[0065] Example 3

[0066] like Figure 4 As shown, in this third embodiment, an ultrasonic sensor 113 is mounted on the outer wall 143 of the milk storage container, aligned at least with the one-way valve 115. This means that the ultrasonic sensor 113 detects the flow of milk passing through the one-way valve 115 without contacting the milk, ensuring milk safety and hygiene. The ultrasonic sensor 113 is also detachably mounted on the outer wall of the milk storage container. When the breast pump is not in use, the milk storage container can be removed from the main body housing and the ultrasonic sensor can be separated from the milk storage container. This allows for cleaning, emptying, and sterilizing the milk storage container. This ensures complete contact and contamination-free operation between the ultrasonic sensor and the milk, further ensuring easy cleaning of the breast pump.

[0067] In the third embodiment, the ultrasonic sensor 113 includes a transmitting end 132a for transmitting signals and a receiving end 132b for receiving signals. The transmitting end of the ultrasonic sensor is a piezoelectric ultrasonic sensor assembly, which includes a piezoelectric ceramic substrate that vibrates to generate ultrasonic waves and electrodes that apply an electric current to the piezoelectric ceramic substrate to make the piezoelectric ceramic substrate vibrate; and the receiving end is configured to receive the ultrasonic waves reflected by the transmitting end and returned after encountering an obstacle, so as to convert the ultrasonic waves into electric signals. In the present application, the ultrasonic sensor is not limited to the structure described above.

[0068] The ultrasonic sensor measures the flow rate by using the change in the frequency of the ultrasonic waves, and when the ultrasonic waves encounter the flowing particles, the reflected frequency changes due to the Doppler effect, which can be detected according to the flowing particles that feed back to the ultrasonic sensor when the milk flows through the milk flow path. When the milk passes through the milk flow path, the ultrasonic waves emitted by the ultrasonic sensor contact the milk and feed back different frequencies, so that the flow rate of the milk can be obtained more accurately.

[0069] Embodiment Four:

[0070] As Figures 5-8 In the fourth embodiment, the milk storage container 110 of the breast pump is detachably assembled below the main machine 101, and the breast shield is detachably assembled to the milk storage container 110. The breast pump further includes a one-way valve 115 located partially or entirely in the milk storage container, and a milk flow path 11a that is in communication with and located between the breast passage 12a and the one-way valve 115, and has an outer wall 11b that does not contact the milk. At least a portion of the outer wall 11b of the milk flow path 11a is exposed outside the milk storage container 110. It can be understood that the portion of the outer wall of the milk flow path exposed outside the milk storage container in the present embodiment does not contact the milk. The ultrasonic sensor 113 is arranged on or close to the portion of the outer wall 11b of the milk flow path exposed outside the milk storage container, so that the ultrasonic sensor 113 detects the flow rate of the milk passing through the milk flow path 11a in a non-contact manner with the milk, thereby ensuring the safety and hygiene of the milk.

[0071] Please refer to Figure 7 and Figure 8 It can be seen that in different embodiments, the ultrasonic sensor 113 is distributed on the entire or partial circumference of the outer wall 11b of the milk flow path 11a. The ultrasonic sensor can be arranged in a matching manner according to the structure of different models of breast pumps, so as to maximize the detection accuracy of the ultrasonic sensor on different signal breast pumps.

[0072] Embodiment Five:

[0073] As Figures 9-10As shown in the fifth embodiment, the breast shield 111 of the breast pump 100 is in liquid communication with the milk storage container 110, and the breast pump further comprises a negative pressure chamber 116 and a one-way valve 115 in communication with the milk passage 12a; the milk flow path 11a is in communication between the negative pressure chamber 116 and the one-way valve 115, and at least part of the one-way valve 115 is located in the milk storage container 110, and the milk flows into the milk storage container 110 through the one-way valve.

[0074] At least part of the side wall of the milk flow path 11a shares the flow detection section side wall 161 with the side wall of the milk storage container, and the flow detection section side wall 161 comprises an inner side wall in contact with the milk and an outer side wall not in contact with the milk.

[0075] In the embodiment, the flow detection section side wall 161 can be the side wall of the milk flow path 11a, and the outer side wall of the flow detection section side wall 161 is the outer wall 11b of the milk flow path. In other embodiments, the flow detection section side wall 161 can also be the side wall of the milk storage container 110.

[0076] In the fifth embodiment, the ultrasonic sensor 113 is mounted on or near the outer side wall of the flow detection section 161. The outer side wall of the flow detection section 161 is not in contact with the milk, so that the ultrasonic sensor 113 detects the flow of the milk through the milk flow path 11a in a non-contact manner with the milk, ensuring the safety and hygiene of the milk.

[0077] In the fifth embodiment, the main body 101 of the breast pump is detachably assembled with the milk storage container 110, the negative pressure system 112 is arranged in the main body housing 117, the diaphragm 114 is mounted on the negative pressure chamber 116 of the milk storage container, and the negative pressure chamber 116 is in communication with the milk passage 12a and the one-way valve 115.

[0078] In the fifth embodiment, the ultrasonic sensor 113 is mounted on or near the outer side wall of the flow detection section 161 in a detachable manner, and when the breast pump is not needed, the ultrasonic sensor is detached, so that the ultrasonic sensor is separated from the milk storage container and the breast shield, so that the milk storage container and the breast shield can be cleaned, milked, disinfected and other operations, and the ultrasonic sensor will not affect the above-mentioned any operation process. Therefore, in the case of complete non-contact and no pollution between the ultrasonic sensor and the milk, the cleaning of the breast pump is further facilitated.

[0079] Embodiment six,

[0080] As Figure 11As shown, in this sixth embodiment, a milk storage container 110 and a breast shield 111 are assembled and connected, and a gap 12d is provided between the milk storage container and the breast shield. An ultrasonic sensor 113 is installed in the gap 12d, and the gap 12d is at least aligned with the milk flow path 11a. Furthermore, the breast pump further includes a one-way valve 115, and the gap 12d is at least aligned with the one-way valve 115, so that the ultrasonic sensor 113 installed in the gap can detect the flow rate of milk passing through the one-way valve 115.

[0081] In the sixth embodiment, the gap 12d does not come into contact with milk, so that the ultrasonic sensor 113 can detect the flow rate of milk passing through the milk flow path 11a in a non-contact manner, thereby ensuring the safety and hygiene of the milk.

[0082] Example 7

[0083] like Figure 12 As shown, the main unit 101, milk storage container 110, and breast shield 111 of the breast pump are all detachable and assembled. The negative pressure system 112 is housed within the main unit housing 117. The breast shield 111 includes a flange 121 that fits against the breast and a milk extraction channel 12a that accommodates the nipple. The milk extraction channel 12a has a milk outlet. The milk extraction channel 12a includes an inner wall facing the nipple and an outer wall 12f facing away from the nipple. An ultrasonic sensor 113 is mounted on the outer wall 12f of the milk extraction channel to detect milk passing through the milk extraction channel 12a without contacting the milk, ensuring milk safety and hygiene. It will be appreciated that in this embodiment, the ultrasonic sensor mounted on the milk extraction channel 12a is detachable, allowing it to be removed from the milk extraction channel when the breast pump is not in use, allowing it to be cleaned and disinfected.

[0084] Example 8

[0085] like Figure 13 As shown, the main unit 101, milk storage container 110, and breast shield 111 of the breast pump are all removable and reassembleable. The negative pressure system 112 is disposed within the main unit housing 117. The main unit housing 117 includes an outer side surface 117a corresponding to the milk extraction passage 12a. An ultrasonic sensor 113 is mounted on the outer side surface 117a of the main unit housing, at least aligned with the milk extraction passage 12a, for detecting milk passing through the milk extraction passage 12a in a non-contact manner, thereby ensuring milk safety and hygiene.

[0086] In summary, the present invention provides a breast pump that further upgrades breast pumps and other related products by configuring an ultrasonic sensor to detect milk flow without contacting the milk, thereby enabling accurate measurement of milk flow and extending the service life of the ultrasonic sensor, thereby ensuring safety and hygiene during the breast pump measurement process.

[0087] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art will understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent replacements for some of the technical features therein. Such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A breast pump, characterized in that: include: Milk storage container for storing breast milk; A breast shield comprising a flange that fits against the breast and a milk channel that accommodates the nipple; A vacuum system that directly or indirectly applies negative pressure to the nipple channel to extract the milk and drain it into a milk storage container; a milk flow path, comprising at least a portion of the milk flow path for milk to be discharged from the milk suction channel into the milk storage container; The ultrasonic sensor is used to detect the flow rate of milk passing through the milk flow path in a non-contact manner.

2. The breast pump according to claim 1, wherein: The ultrasonic sensor includes a transmitting end for transmitting signals and a receiving end for receiving signals.

3. The breast pump according to claim 2, characterized in that: The transmitting end is a piezoelectric ultrasonic sensor assembly, which includes a piezoelectric ceramic substrate that vibrates to generate ultrasonic waves and an electrode that applies current to the piezoelectric ceramic substrate to cause the piezoelectric ceramic substrate to vibrate; The receiving end is used to receive the ultrasonic wave reflected from the transmitting end and returned after encountering an obstacle, so as to convert the ultrasonic wave into an electrical signal.

4. The breast pump according to claim 1 or 2, characterized in that: The milk flow path has an outer wall that does not contact milk, and the ultrasonic sensor is arranged on the outer wall or close to the outer wall.

5. The breast pump according to claim 4, characterized in that: The breast pump further includes a one-way valve; the milk flow path communicates with the milk suction channel and the one-way valve and is located between the two; At least a portion of the outer wall of the milk flow path is exposed outside the milk storage container.

6. The breast pump according to claim 4, wherein: The breast shield is in liquid communication with the milk storage container; the breast pump further comprises a negative pressure chamber and a one-way valve connected to the milk suction channel; the milk flow path is connected to the negative pressure chamber and the one-way valve and is located between the two; At least a portion of the one-way valve is located in the milk storage container, and milk flows into the milk storage container through the one-way valve; At least part of the outer wall of the milk flow path is shared with the side wall of the milk storage container.

7. The breast pump according to claim 5 or 6, characterized in that: The ultrasonic sensor is arranged on the entire circumference or a part of the outer wall.

8. The breast pump according to claim 2, wherein: The breast pump further comprises a one-way valve connected to the milk suction channel, and milk flows into the milk storage container through the one-way valve; The breast pump further comprises a main body shell assembled with the milk storage container, and the negative pressure system is arranged in the main body shell; The ultrasonic sensor is installed on the inner wall of the host housing and is at least aligned with the position of the one-way valve, and / or the ultrasonic sensor is installed on the outer wall of the host housing and is at least aligned with the position of the one-way valve.

9. The breast pump according to claim 2, wherein: The breast pump further comprises a one-way valve connected to the milk suction channel, and milk flows into the milk storage container through the one-way valve; The ultrasonic sensor is mounted on the outer side wall of the milk storage container and is aligned at least with the one-way valve.

10. The breast pump according to claim 8 or 9, characterized in that: The ultrasonic sensor is aligned with a narrow end of the one-way valve away from the milk extraction channel.

11. The breast pump according to claim 2, wherein: The milk storage container and the breast shield are assembled and connected, and a gap is provided between the milk storage container and the breast shield. The ultrasonic sensor is installed in the gap, and the gap is at least aligned with the milk flow path.

12. The breast pump according to claim 11, characterized in that: The breast pump further comprises a one-way valve, and the gap space is at least aligned with the one-way valve.

13. The breast pump according to claim 2, wherein: The milk suction channel comprises an inner wall facing the nipple and an outer wall facing away from the nipple, and the ultrasonic sensor is mounted on the outer wall of the milk suction channel.

14. The breast pump according to claim 2, wherein: The breast pump further comprises a main body shell assembled with the breast shield, and the negative pressure system is arranged in the main body shell; The main body housing includes an outer side surface corresponding to the milk suction channel; The ultrasonic sensor is mounted on the outer side of the main unit housing and is aligned with at least the position of the milk suction channel.

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