Breast pump

Abstract

The breast pump comprises a collecting assembly, a negative pressure assembly, a liquid blocking driving piece and a leakage detection unit, one side of the collecting assembly is used for being attached to the breast, and the other side of the collecting assembly is used for collecting milk; the negative pressure assembly is pneumatically or mechanically or electrically connected with the collecting assembly and indirectly applies negative pressure to the collecting assembly; the liquid blocking driving part is arranged between the collecting assembly and the negative pressure assembly, and the negative pressure assembly applies negative pressure to the collecting assembly through the liquid blocking driving part; the leakage detection unit is arranged between the negative pressure assembly and the liquid blocking driving part and used for detecting whether milk leaks to the negative pressure assembly or not. The technical scheme of the utility model provides a breast pump capable of finding milk leakage in time.

Description

Technical Field

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

[0002] A breast pump is a tool used to squeeze out breast milk accumulated in the mammary glands. It is generally used when the baby cannot directly suck breast milk, or when the mother leaves the baby but still wants to breastfeed. A breast pump usually applies negative pressure directly or indirectly to a breast shield or milk storage container that fits the breast through an electric or manual negative pressure system, so that the milk can be sucked into a milk storage container or other storage space for storage.

[0003] Current breast pumps apply negative pressure directly to the breast through a negative pressure air circuit, which may cause milk to be sucked into the air circuit at the same time, easily causing contamination of the milk or affecting the circuit or pump at the main end of the air circuit. Utility Model Content

[0004] The main purpose of the utility model is to provide a breast pump, which is intended to detect milk leakage in time.

[0005] To achieve the above-mentioned purpose, the breast pump proposed by the utility model includes a collecting component, a negative pressure component, a liquid barrier driving component and a leakage detection unit, one side of the collecting component is used to fit the breast, and the other side is used to collect milk; the negative pressure component is pneumatically, mechanically or electrically connected to the collecting component, and indirectly applies negative pressure to the collecting component; the liquid barrier driving component is arranged between the collecting component and the negative pressure component, and the negative pressure component applies negative pressure to the collecting component through the liquid barrier driving component; the leakage detection unit is arranged between the negative pressure component and the liquid barrier driving component, and is used to detect whether milk leaks into the negative pressure component.

[0006] In an embodiment of the present application, the breast pump further comprises a shell, and the negative pressure assembly is at least partially disposed within the shell.

[0007] In one embodiment of the present application, the leakage detection unit includes a detection electrode, and the detection electrode is arranged on a side of the liquid barrier driving component close to the negative pressure component.

[0008] In one embodiment of the present application, the negative pressure component is provided with an air outlet, the housing is sealedly connected to the liquid barrier driving component to form a sealing surface, and the detection electrode is arranged on a side of the sealing surface.

[0009] In an embodiment of the present application, the distal end of the detection electrode is lower than the gas outlet.

[0010] In one embodiment of the present application, the detection electrodes are disposed on all side surfaces of the sealing surface.

[0011] In one embodiment of the present application, the leakage detection unit further includes a capacitive sensor, and the capacitive sensor is disposed on a side of the liquid barrier driving component close to the negative pressure assembly.

[0012] In an embodiment of the present application, the leakage detection unit further comprises a pressure sensor, and the pressure sensor is arranged on a side of the liquid barrier driving component close to the negative pressure assembly or a side of the breast shield.

[0013] In one embodiment of the present application, the negative pressure component includes a pump component and an air pipe, one end of the air pipe is connected to the pump component, and the other end of the air pipe is connected to the collecting component, the air pipe has a liquid seepage limit position, and the leakage detection unit is a detection electrode, and the detection electrode is arranged at the liquid seepage limit position of the inner wall of the air pipe.

[0014] In one embodiment of the present application, the leakage detection unit further includes a liquid level detection sensor, and the liquid level detection sensor is disposed in the air pipe and is used to detect whether there is liquid in the air pipe.

[0015] In one embodiment of the present application, the middle position of the trachea is recessed inward to form a first cavity and a second cavity that are connected. The second cavity is connected to the negative pressure component, and the first cavity is connected to the collecting component. The cross-sectional area of ​​the second cavity gradually decreases away from the negative pressure component, and the liquid level detection sensor is arranged on the cavity wall of the first cavity.

[0016] In one embodiment of the present application, the leakage detection unit is a photoelectric sensor assembly, which includes a transmitter and a receiver, which are respectively arranged on opposite sides of the inner wall of the trachea, the transmitter is used to emit detection light, and the receiver is used to receive the detection light to detect whether there are milk droplets entering the negative pressure assembly.

[0017] In one embodiment of the present application, the leakage detection unit is a temperature sensor assembly, and the temperature sensor assembly is disposed on the inner wall of the trachea to detect temperature changes inside the trachea.

[0018] In one embodiment of the present application, the collecting assembly includes a breast shield, a milk storage container and a three-way assembly, the three-way assembly has three openings that are interconnected, the first opening is connected to the breast shield, the second opening is connected to the negative pressure assembly, and the third opening is connected to the milk storage container, and the temperature sensor assembly is arranged at the second opening.

[0019] In one embodiment of the present application, the breast pump further comprises a controller, which is electrically or communicatively connected to the negative pressure assembly and the leakage detection unit, respectively, so as to receive a leakage signal from the leakage detection unit and control the negative pressure assembly to stop operating.

[0020] In an embodiment of the present application, the breast pump further comprises an alarm, and the controller is electrically connected or communicatively connected to the alarm to control the alarm to sound an alarm.

[0021] In an embodiment of the present application, the breast pump further includes an indicator light, and the controller is electrically or communicatively connected to the indicator light.

[0022] The utility model also proposes a breast pump, comprising a collecting component, a negative pressure component, a liquid barrier driving component and a leakage detection unit, wherein one side of the collecting component is used to fit onto a breast, and the other side is used to collect milk; the negative pressure component is connected to the collecting component and indirectly applies negative pressure to the collecting component; the liquid barrier driving component is arranged between the collecting component and the negative pressure component, and the negative pressure component applies negative pressure to the collecting component through the liquid barrier driving component; the leakage detection unit is arranged in a sealed negative pressure cavity formed between the liquid barrier driving component and the negative pressure component to detect whether the sealed negative pressure cavity is leaking or liquid has penetrated.

[0023] The technical solution of the utility model includes a collection component, a negative pressure component, a liquid barrier driver and a leakage detection unit. The negative pressure component indirectly applies negative pressure to the collection component through a liquid barrier driver disposed between the collection component and the negative pressure component. One side of the collection component is attached to the breast, and the negative pressure applied by the negative pressure component is transmitted to the breast of the user, so that the milk is sucked out of the mammary gland and temporarily stored in the collection component. The leakage detection unit is arranged on the negative pressure component, which can detect whether the milk leaks into the negative pressure component, and timely save the circuit components in the negative pressure component to prevent the problem of circuit short circuit caused by liquid ingress. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 It is a cross-sectional view of an embodiment of the breast pump of the utility model;

[0026] Figure 2 is a cross-sectional view of another embodiment of the breast pump of the present utility model;

[0027] Figure 3 This is a cross-sectional view of another embodiment of the breast pump of the present invention.

[0028] Description of Figure Numbers:

[0029]

[0030]

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] The utility model provides a breast pump 100 .

[0036] In the embodiment of the present utility model, in combination with reference Figures 1 to 3The breast pump 100 includes a collecting component 1, a negative pressure component 3, a liquid barrier driving component 2 and a leakage detection unit 6. One side of the collecting component 1 is used to fit the breast, and the other side is used to collect milk. The negative pressure component 3 is pneumatically, mechanically or electrically connected to the collecting component 1, and indirectly applies negative pressure to the collecting component 1. The liquid barrier driving component 2 is arranged between the collecting component 1 and the negative pressure component 3, and the negative pressure component 3 applies negative pressure to the collecting component 1 through the liquid barrier driving component 2. The leakage detection unit 6 is arranged between the negative pressure component 3 and the liquid barrier driving component 2, and is used to detect whether milk leaks into the negative pressure component 3.

[0037] In this embodiment, one side of the collecting component 1 is used to fit the breast, and should be made of skin-friendly and soft materials, such as silicone or latex, which are more comfortable and not easy to cause skin allergies and other problems of the user. The other side is used to collect breast milk, and can be a milk bowl, a milk bag or a milk bottle, etc., which is not further limited here. The liquid barrier driver 2 can be a diaphragm or an air bag, etc., and is integrally formed with the collecting component 1, and cannot be disassembled, which can prevent the user from disassembling and installing it in a wrong position, causing milk leakage or backflow. The collecting component 1 includes a breast shield 11 and a milk storage container 12. The milk storage container 12 can be a milk bag, a milk bottle or a milk bowl, etc. The milk storage container 12 can be directly connected to the breast shield 11, or it can be connected through a shorter pipe, or the milk bowl can surround the breast shield 11 to form an independent wearing unit; the two can be a whole, or a detachable structure, or the milk bowl or milk bottle can be connected to a shell respectively, but the channel between the two is connected, so that breast milk can flow from the breast shield 11 into the milk storage container 12. The breast shield 11 is used to fit the breast of the user, and is in the shape of a funnel or hemisphere that can fit the breast. In order to improve the user experience, the breast shield 11 is made of a skin-friendly and soft material, such as silicone or latex, which is more comfortable and not likely to cause skin allergies and other problems in the user. The negative pressure component 3 indirectly applies negative pressure to the collection component 1 through the liquid barrier driver 2, so that the collection component 1 squeezes the breast, which can help the user discharge milk from the breast and flow into the collection component 1 for temporary storage. The power structure used to generate negative pressure in the negative pressure component 3 includes but is not limited to a piezoelectric pump, a diaphragm pump, a hydraulic pump, a mechanical pump, etc., which can indirectly cause negative pressure inside the breast shield 11 by transmitting negative pressure to a liquid barrier such as a diaphragm or an air bag, and through the negative pressure, breast milk is introduced into the collection component 1 for storage. A leakage detection component is provided on the negative pressure component 3 to detect whether milk leaks into the negative pressure component 3 to prevent the circuit inside the negative pressure component 3 from short-circuiting and failing. The leakage detection component can be a detection electrode, a temperature sensor, a liquid level sensor, etc.

[0038] The liquid barrier drive member 2 and the negative pressure assembly 3 or the collecting assembly 1 are integrally formed and sealed, which means that the liquid barrier drive member 2 and the negative pressure assembly 3 or the collecting assembly 1 are an inseparable whole, and there is no gap between the two, and there is no need to seal the two by installation, extrusion or other clamping structures. The purpose of such a setting is to effectively overcome the problem that the independent and detachable elastic diaphragm structure used in the breast pump 100 in the prior art may fail to seal the liquid due to problems such as installation misalignment or edge wrinkles during use, thereby causing major accidents such as milk contamination or damage to the electronic components of the breast pump 100. It can also overcome the problem that the independent and detachable elastic diaphragm structure used in the breast pump 100 in the prior art needs to be cleaned separately, which is troublesome to clean, and the elastic diaphragm structure may be disassembled and installed again after cleaning, which may cause liquid sealing failure, thereby causing major accidents such as milk contamination or damage to the electronic components of the breast pump 100.

[0039] The connection between the negative pressure component 3 and the collecting component 1 refers to the negative pressure component 3 used to cause negative pressure in at least part of the space inside the collecting component 1. It can be a diaphragm pump, a piezoelectric ceramic pump or other air pump that transmits air pressure to the liquid barrier driver 2 for deformation movement, thereby causing a change in the negative pressure inside the collecting component 1; it can also be a mechanical driving structure that mechanically drives the liquid barrier driver 2 to deform or reciprocate, thereby causing a change in the negative pressure inside the collecting component 1; or the liquid barrier driver 2 itself may be a piezoelectric material, and after power is turned on, the liquid barrier driver 2 can self-vibrate or deform, thereby causing a change in the negative pressure inside the collecting component 1.

[0040] The technical solution of the utility model includes a collection component 1, a negative pressure component 3, a liquid barrier driver 2 and a leakage detection unit 6. The negative pressure component 3 indirectly applies negative pressure to the collection component 1 through the liquid barrier driver 2 disposed between the collection component 1 and the negative pressure component 3. One side of the collection component 1 is attached to the breast, and the negative pressure applied by the negative pressure component 3 is transmitted to the breast of the user, so that the milk is sucked out of the mammary gland and temporarily stored in the collection component 1. The leakage detection unit 6 is disposed on the negative pressure component 3, which can detect whether the milk leaks into the negative pressure component 3, and timely save the circuit components in the negative pressure component 3 to prevent the problem of circuit short circuit caused by liquid ingress.

[0041] In an embodiment of the present application, the breast pump 100 further comprises a shell, and the negative pressure assembly 3 is at least partially disposed in the shell.

[0042] In this embodiment, the breast pump 100 further includes a shell, which should be made of a hard material to protect the internal negative pressure component 3 and power supply components, such as hard plastic or metal materials such as aluminum alloy or titanium alloy. The shape of the shell can be selected according to actual needs and is not further limited here. The negative pressure component 3 can be completely arranged in the shell, connected with the collection component 1 through the negative pressure air hole opened in the shell, so as to apply negative pressure to the collection component 1, or it can be partially exposed to the shell through the negative pressure air pipe, connected with the collection component 1 through the negative pressure air pipe exposed outside, and then negative pressure is applied to the collection component 1.

[0043] In one embodiment of the present application, the leakage detection unit 6 includes a detection electrode, which is disposed on a side of the liquid barrier driving component 2 close to the negative pressure component 3 .

[0044] In this embodiment, whether the breast pump 100 is leaking is detected by a detection electrode, and the detection electrode is arranged on a side of the liquid barrier driving member 2 close to the negative pressure component 3. If the detection electrode is connected, it means that the sealing of the liquid barrier driving member 2 has failed and leakage has occurred. At this time, it is necessary to stop the operation of the negative pressure component 3, check and replace the liquid barrier driving member 2 with better sealing performance to prevent the negative pressure component 3 from sucking in more lotion and causing a short circuit of the negative pressure component 3.

[0045] In one embodiment of the present application, the negative pressure component 3 is provided with an air outlet, the housing is sealed and connected to the liquid barrier driving component 2 to form a sealing surface, and the detection electrode is arranged on the side of the sealing surface.

[0046] In this embodiment, the negative pressure component 3 is provided with an air suction port 33, the liquid barrier driving component 2 is sealed and connected to the shell, and the breast pump 100 is divided into two parts separated by gas and liquid. A sealing surface is formed between the liquid barrier driving component 2 and the shell, and the detection electrode is arranged on the side of the sealing surface, which can more timely detect whether the liquid barrier driving component 2 is leaking, thereby reducing the negative pressure component 3 from sucking in more lotion and causing a short circuit of the negative pressure component 3.

[0047] In an embodiment of the present application, the distal end of the detection electrode is lower than the gas outlet.

[0048] In this embodiment, in order to detect milk leakage earlier, the far end of the detection electrode is set lower than the air outlet, so that the leakage can be sensed before the liquid enters the air path. This can reserve more time for the machine or the user to shut down the machine and avoid the liquid inertia causing the liquid to enter the machine, causing milk contamination and machine damage.

[0049] In one embodiment of the present application, the detection electrodes are disposed on all side surfaces of the sealing surface.

[0050] In this embodiment, the detection electrodes are arranged on all sides of the sealing surface, and leakage detection can be performed on all sides of the sealing surface at the same time to prevent leakage from occurring at a certain place of the sealing surface. However, if no detection electrodes are arranged here, a certain amount of milk needs to accumulate before it can be detected by the nearby detection electrodes, causing liquid to enter the interior of the machine, resulting in milk contamination and machine damage.

[0051] In one embodiment of the present application, the leakage detection unit 6 further includes a capacitive sensor, which is disposed on a side of the liquid barrier driving component 2 close to the negative pressure component 3 .

[0052] In this embodiment, since the capacitance of milk and air is different, the capacitive sensor can determine whether the liquid barrier driver 2 is leaking by detecting the capacitance change in the space on the side of the liquid barrier driver 2 close to the negative pressure component 3.

[0053] In an embodiment of the present application, the leakage detection unit 6 further comprises a pressure sensor, and the pressure sensor is arranged on a side of the liquid barrier driving member 2 close to the negative pressure assembly 3 or a side close to the breast shield 11 .

[0054] In this embodiment, due to the different masses of milk and air, the pressure sensor can determine whether the liquid barrier driver 2 is leaking by detecting the weight change of the space on one side of the liquid barrier driver 2 close to the negative pressure component 3.

[0055] In one embodiment of the present application, the negative pressure component 3 includes a pump component and an trachea, one end of the trachea is connected to the pump component, and the other end of the trachea is connected to the collecting component 1. The trachea has a liquid seepage limit position, and the leakage detection unit 6 is a detection electrode, which is arranged at the liquid seepage limit position of the inner wall of the trachea.

[0056] In this embodiment, the pump assembly is connected to one end of the trachea, and the other end is connected to the collecting assembly 1 to apply negative pressure to the collecting assembly 1. The detection electrode is arranged on the trachea, and a liquid leakage limit position, that is, a dangerous position, is arranged on the trachea. When the milk exceeds this position, it will pose a threat to the circuit components inside the negative pressure assembly 3. When the milk reaches the position of the detection electrode, the milk acts as a conductor and can connect the detection electrode to form a loop, thereby sending an alarm or indicator light to the user to remind the user that the milk leakage has reached the limit position.

[0057] In one embodiment of the present application, the leakage detection unit 6 further includes a liquid level detection sensor, which is disposed in the trachea and is used to detect whether there is liquid in the trachea.

[0058] In this embodiment, a liquid level detection sensor is provided in the trachea. By detecting whether there is liquid in the trachea and further detecting whether milk has been sucked into the trachea, it is possible to find earlier that milk has leaked into the trachea, thereby preventing milk from being sucked into the negative pressure component 3, causing a short circuit in the negative pressure component 3, and causing the breast pump 100 to fail.

[0059] In one embodiment of the present application, the middle position of the trachea is recessed inward to form a first cavity and a second cavity that are connected. The second cavity is connected to the negative pressure component 3, and the first cavity is connected to the collecting component 1. The cross-sectional area of ​​the second cavity gradually decreases away from the negative pressure component 3, and the liquid level detection sensor is arranged on the cavity wall of the first cavity.

[0060] In this embodiment, the middle position of the trachea is recessed inward to form two connected cavities, the first cavity is connected to the collecting component 1, and the second cavity is connected to the negative pressure component 3. The cross-sectional area of ​​the second cavity gradually decreases away from the negative pressure component 3. In the case of the same volume of leaked milk, the amplitude of the liquid level change in the second cavity is larger, which indirectly improves the detection sensitivity of the liquid level detection sensor, and can more promptly detect that the milk has leaked into the air pipe, preventing the milk from being sucked into the negative pressure component 3, causing a short circuit in the negative pressure component 3, resulting in milk contamination or failure of the breast pump 100.

[0061] In one embodiment of the present application, the leakage detection unit 6 is a photoelectric sensor assembly, which includes a transmitter and a receiver, which are respectively arranged on opposite sides of the inner wall of the trachea. The transmitter is used to emit detection light, and the receiver is used to receive the detection light to detect whether there are milk droplets entering the negative pressure assembly 3.

[0062] In this embodiment, the transmitter and receiver of the photoelectric sensor assembly are arranged on opposite sides of the inner wall of the trachea. When milk droplets are sucked into the negative pressure assembly 3, they will block the transmitter of the photoelectric sensor assembly when moving in the trachea, so that the receiver cannot receive the light from the transmitter, indicating that milk droplets have entered the negative pressure assembly 3 through the trachea. Timely discovery can prevent more milk from being sucked into the negative pressure assembly 3, causing short circuit failure.

[0063] In one embodiment of the present application, the leakage detection unit 6 is a temperature sensor component, which is disposed on the inner wall of the trachea and is used to detect temperature changes inside the trachea.

[0064] In this embodiment, since the temperature of milk is higher than room temperature, a temperature sensor assembly is provided on the inner wall of the trachea. By detecting the temperature change inside the trachea, it is determined whether milk has entered the trachea. Timely detection can prevent more milk from being sucked into the negative pressure assembly 3, causing short circuit failure or milk contamination.

[0065] In one embodiment of the present application, the collecting component 1 includes a breast shield 11, a milk storage container 12 and a three-way component 13. The three-way component 13 has three openings that are interconnected. The first opening is connected to the breast shield 11, the second opening is connected to the negative pressure component 3, and the third opening is connected to the milk storage container 12. The temperature sensor component is arranged at the second opening.

[0066] In this embodiment, the collecting component 1 also includes a three-way component 13, and the three-way component 13 includes a first opening, a second opening and a third opening that are interconnected. The first opening is used to communicate with the breast shield 11, the second opening is used to communicate with the negative pressure component 3, and the third opening is used to communicate with the milk storage container 12. The temperature sensor component arranged in the three-way component 13 can detect that milk is entering the air pipe earlier, thereby preventing milk contamination or circuit short circuit of the negative pressure component 3.

[0067] In one embodiment of the present application, the breast pump 100 further includes a controller, which is electrically or communicatively connected to the negative pressure assembly 3 and the leakage detection unit 6, respectively, to receive a leakage signal from the leakage detection unit 6 and control the negative pressure assembly 3 to stop operating.

[0068] In this embodiment, the breast pump 100 also includes a controller, which is electrically connected or communicatively connected to the negative pressure component 3 and the leakage detection unit 6. When the leakage detection unit 6 detects milk leakage, it transmits a leakage signal to the controller. The controller receives the leakage signal and judges the leakage signal. If the leakage signal indicates that a leakage has occurred, the controller controls the negative pressure component 3 to stop running to prevent the circuit board in the negative pressure component 3 from being burned, causing the entire breast pump 100 to fail.

[0069] In one embodiment of the present application, the breast pump 100 further includes an alarm, and the controller is electrically connected or communicatively connected to the alarm to control the alarm to sound an alarm.

[0070] In this embodiment, the breast pump 100 also includes an alarm. When the leakage detection unit 6 detects milk leakage, it will transmit a leakage signal to the controller. The controller receives the leakage signal and judges the leakage signal. If the leakage signal indicates that a leakage has occurred, the controller controls the alarm to sound an alarm to remind the user to pay attention to the leakage problem of the breast pump 100, manually cut off the power supply in time, and open the negative pressure component 3 for processing to prevent further damage to the negative pressure component 3.

[0071] In one embodiment of the present application, the breast pump 100 further includes an indicator light, and the controller is electrically or communicatively connected to the indicator light.

[0072] In this embodiment, the breast pump 100 also includes an indicator light. When the leakage detection unit 6 detects milk leakage, it will transmit a leakage signal to the controller. The controller receives the leakage signal and judges the leakage signal. If the leakage signal indicates that a leakage has occurred, the controller controls the indicator light to emit an indicator light for warning, so as to remind the user to pay attention to the leakage problem of the breast pump 100, manually cut off the power supply in time, and open the negative pressure component 3 for processing to prevent further damage to the negative pressure component 3.

[0073] The utility model also proposes a breast pump 100, comprising a collecting component 1, a negative pressure component 3, a liquid barrier driving component 2 and a leakage detection unit 6, wherein one side of the collecting component 1 is used to fit the breast, and the other side is used to collect milk; the negative pressure component 3 is connected to the collecting component 1, and indirectly applies negative pressure to the collecting component 1; the liquid barrier driving component 2 is arranged between the collecting component 1 and the negative pressure component 3, and the negative pressure component 3 applies negative pressure to the collecting component 1 through the liquid barrier driving component 2; the leakage detection unit 6 is arranged in a sealed negative pressure cavity formed between the liquid barrier driving component 2 and the negative pressure component 3 to detect whether the sealed negative pressure cavity is leaking or liquid has penetrated.

[0074] In this embodiment, the sealed negative pressure chamber formed between the liquid barrier driving member 2 and the negative pressure assembly 3 can be used to detect whether there is air leakage or liquid infiltration in the sealed negative pressure chamber, thereby detecting whether the breast pump 100 is leaking.

[0075] In one embodiment, the collection component 1 includes a breast shield 11 and a milk storage container 12. The breast shield 11 includes a flange 111 end that fits the breast and receives breast milk and an outflow end that flows breast milk into the milk storage container 12. The milk storage container 12 can store breast milk alone or the containing cavity formed with the breast shield 11 can store breast milk. The collection component 1 is provided with a negative pressure air port, through which the internal pressure of the breast pump component can be changed under the action of the liquid barrier driving member 2 (elastic deformation member such as a suction diaphragm or a bag) to guide the breast milk to be sucked out into the milk storage container 12. The negative pressure component 3 includes a negative pressure pump 31, a negative pressure air path 32 and a negative pressure deformation chamber 5. The negative pressure deformation chamber 5 is provided with a suction port 33, through which the liquid barrier driving member 2 can reciprocate, causing negative pressure to be generated inside the breast shield 11, and guiding the breast milk to flow into the milk storage container 12. The negative pressure deformation chamber 5 at least includes a chamber body formed by sealing a part of the suction diaphragm and the deformation chamber suction port 33 of the negative pressure air circuit 32; when the negative pressure air pump intermittently sucks air, the negative pressure deformation chamber 5 will be deformed, thereby causing negative pressure to be generated inside the breast shield 11 to guide breast milk to be introduced into the milk storage container 12. The leakage detection component is at least partially arranged in the negative pressure deformation chamber 5, and can detect the occurrence of gas leakage or liquid leakage in the negative pressure deformation chamber 5, and transmit the signal to the control circuit of the host. The leakage detection component can be one or more of a detection electrode, a detection capacitor, an optical sensor or a pressure sensor. The leakage detection unit 6 can also be integrated in the liquid barrier driver 2 on one side close to the negative pressure deformation chamber 5, such as an electrode or capacitor coating. The liquid barrier driver 2 is sealed between the diaphragm bracket 21 and the milk bowl, and the suction port 33 of the negative pressure deformation chamber 5 is connected to the negative pressure deformation chamber 5 through the negative pressure air port on the milk bowl.

[0076] In another embodiment, the leakage detection unit 6 is arranged in the sealed cavity formed by the liquid barrier driving member 2 and the main body, or can remotely detect the leakage of gas or liquid in the sealed cavity formed by the liquid barrier driving member 2 and the main body, and the leakage detection component can be one or more of a detection electrode, a detection capacitor, an optical sensor or a pressure sensor. The leakage detection unit 6 is electrically connected to the main body control circuit board through a circuit to feedback a signal to the control circuit board. When the leakage detection unit 6 is a detection electrode, the lowest end of the detection electrode is lower than the air inlet 33 of the negative pressure deformation chamber 5, so that before the leaked liquid enters the negative pressure air path 32, it is detected in advance whether there is leakage. When the leakage detection unit 6 is a pressure sensor, it can sense the pressure change in the negative pressure deformation chamber 5; when there is a gas leakage or liquid leakage state, the pressure sensor can sense the difference between the pressure change in the negative pressure deformation chamber 5 and the non-gas leakage or liquid leakage state, thereby judging whether the current breast pump 100 is in a liquid leakage or gas leakage state.

[0077] In another embodiment, the negative pressure deformation chamber 5 can be formed by the main body housing 4 and the diaphragm bracket 21 of the flange 111 to seal the liquid barrier driving member 2; the negative pressure deformation chamber 5 can also be formed by a separate liquid barrier driving member 2 and the diaphragm bracket 21 of the flange 111 to seal the liquid barrier driving member 2;

[0078] Preferably, the negative pressure air inlet hole is arranged at the upper part of the negative pressure deformation chamber 5, the detection electrode is at least partially arranged in the negative pressure deformation chamber 5, and the lowest position of the detection electrode is located at the lower part of the negative pressure air inlet hole.

[0079] When air or liquid leakage is detected in the negative pressure deformation chamber 5, the control circuit sends out an alarm or a shutdown signal to minimize the possibility of milk infiltrating into the pump to contaminate the milk or damage the host circuit.

[0080] The leakage detection unit 6 can also be a non-contact sensor, such as an optical sensor, a camera or an infrared sensor, which can identify when milk leaks out of the negative pressure deformation chamber 5 and immediately feedback a shutdown or alarm signal to the host control circuit.

[0081] The leakage detection unit 6 can also be a non-contact capacitive sensor, which can be arranged outside the negative pressure deformation chamber 5, for example, on the side of the main machine side wall close to the negative pressure deformation chamber 5. When seepage enters the negative pressure deformation chamber 5, it will cause the sensed capacitance to change suddenly. When the control circuit recognizes and determines the seepage state, it will feedback a shutdown or alarm signal to the control circuit.

[0082] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A breast pump, characterized in that: include: A collecting component, one side of which is adapted to fit the breast and the other side of which is adapted to collect breast milk; A negative pressure component, which is pneumatically, mechanically or electrically connected to the collecting component and indirectly applies negative pressure to the collecting component; A liquid barrier driving member, wherein the liquid barrier driving member is disposed between the collecting assembly and the negative pressure assembly, and the negative pressure assembly applies negative pressure to the collecting assembly through the liquid barrier driving member; as well as A leakage detection unit is provided between the negative pressure component and the liquid barrier driving member, and is used to detect whether milk leaks toward the negative pressure component.

2. The breast pump according to claim 1, characterized in that The breast pump further comprises a shell, wherein the negative pressure assembly is at least partially disposed within the shell.

3. The breast pump according to claim 2, characterized in that The leakage detection unit comprises a detection electrode, and the detection electrode is arranged on a side of the liquid barrier driving component close to the negative pressure component.

4. The breast pump according to claim 3, characterized in that The negative pressure component is provided with an air outlet, the housing is sealed and connected to the liquid barrier driving component to form a sealing surface, and the detection electrode is arranged on the side of the sealing surface.

5. The breast pump according to claim 4, characterized in that The distal end of the detection electrode is lower than the gas outlet.

6. The breast pump according to claim 4, characterized in that The detection electrodes are arranged on all side surfaces of the sealing surface.

7. The breast pump according to claim 1, characterized in that The leakage detection unit further includes a capacitive sensor, which is disposed on a side of the liquid barrier driving component close to the negative pressure assembly.

8. The breast pump according to claim 1, characterized in that The collecting assembly includes a breast shield, and the leakage detection unit also includes a pressure sensor, which is arranged on a side of the liquid barrier driving component close to the negative pressure assembly or close to the breast shield.

9. The breast pump according to claim 1, characterized in that: The negative pressure component includes a pump component and an air pipe, one end of the air pipe is connected to the pump component, and the other end of the air pipe is connected to the collecting component. The air pipe has a liquid seepage limit position, and the leakage detection unit is a detection electrode, which is arranged at the liquid seepage limit position of the inner wall of the air pipe.

10. The breast pump according to claim 9, characterized in that The leakage detection unit further includes a liquid level detection sensor, which is disposed on the air pipe and is used to detect whether there is liquid in the air pipe.

11. The breast pump according to claim 10, characterized in that The middle position of the air pipe is recessed inward to form a first cavity and a second cavity that are connected. The second cavity is connected to the negative pressure component, and the first cavity is connected to the collecting component. The cross-sectional area of ​​the second cavity gradually decreases away from the negative pressure component, and the liquid level detection sensor is arranged on the cavity wall of the first cavity.

12. The breast pump according to claim 9, characterized in that The leakage detection unit is a photoelectric sensor assembly, which includes a transmitter and a receiver, which are respectively arranged on two opposite sides of the inner wall of the trachea. The transmitter is used to emit detection light, and the receiver is used to receive the detection light to detect whether there are milk droplets entering the negative pressure assembly.

13. The breast pump according to claim 9, characterized in that The leakage detection unit is a temperature sensor component, which is arranged on the inner wall of the trachea and is used to detect the temperature change inside the trachea.

14. The breast pump according to claim 13, characterized in that The collecting component comprises a breast shield, a milk storage container and a three-way component, wherein the three-way component has three openings that are interconnected, wherein the first opening is connected to the breast shield, the second opening is connected to the negative pressure component, and the third opening is connected to the milk storage container, and the temperature sensor component is arranged at the second opening.

15. A breast pump according to any one of claims 1 to 14, characterized in that The breast pump further comprises a controller, which is electrically or communicatively connected to the negative pressure assembly and the leakage detection unit respectively, so as to receive a leakage signal from the leakage detection unit and control the negative pressure assembly to stop operating.

16. The breast pump according to claim 15, characterized in that The breast pump further comprises an alarm, and the controller is electrically connected or communicatively connected with the alarm to control the alarm to sound an alarm.

17. The breast pump according to claim 16, characterized in that The breast pump further comprises an indicator light, and the controller is electrically or communicatively connected to the indicator light.

18. A breast pump, characterized in that: include: A collecting component, one side of which is adapted to fit the breast and the other side of which is adapted to collect breast milk; A negative pressure component, which is connected to the collecting component and indirectly applies negative pressure to the collecting component; A liquid barrier driving member, wherein the liquid barrier driving member is disposed between the collecting assembly and the negative pressure assembly, and the negative pressure assembly applies negative pressure to the collecting assembly through the liquid barrier driving member; as well as A leakage detection unit is provided in a sealed negative pressure cavity formed between the liquid barrier driving member and the negative pressure assembly to detect whether the sealed negative pressure cavity is leaking or liquid has penetrated.

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