Wearable breast pump with liquid level sensing function

Abstract

The utility model discloses a wearable breast pump with a liquid level sensing function. The wearable breast pump comprises a main machine, a liquid level sensing module and a milk bottle. The host is provided with a shell, a containing cavity is formed in the shell, a circuit board is arranged in the containing cavity, sensor grooves are formed in the two sides of the bottom face of the shell, and the liquid level sensing module comprises a first liquid level sensor, a second liquid level sensor and a fixing film. The first liquid level sensor and the second liquid level sensor are arranged in the sensor groove and are attached and fixed through the fixing film, the feeding bottle is connected to the lower portion of the main machine, a milk storage cavity is formed in the feeding bottle, and the upper end face of the feeding bottle abuts against and is tightly attached to the fixing film. Therefore, the first liquid level sensor and the second liquid level sensor can simultaneously detect whether the liquid in the milk storage cavity reaches the set height or not. According to the scheme, synchronous induction is achieved through the liquid level sensors at the two point positions, the problem of false triggering caused by shaking and inclining is avoided, and accurate induction of the liquid level is achieved.

Description

Technical Field

[0001] This utility model relates to a maternal and infant product, and more particularly to a wearable breast pump with a liquid level sensing function. Background Technology

[0002] A breast pump is a tool used to collect breast milk by absorbing it. Currently, for ease of use, wearable breast pumps are becoming more popular. These breast pumps can be worn directly on the user and automatically collect breast milk. However, due to their wearable nature, users cannot observe the amount of milk pumped in time, which can lead to breast milk spilling out of the bottle.

[0003] To address these issues, some manufacturers have introduced breast pumps with integrated liquid level sensors, such as the existing technology CN221600827U. This technology uses a liquid level sensor at the bottom of the main unit to monitor the bottle's liquid level. However, it still has some drawbacks, such as: ① There is only one liquid level sensor, located on one side. This means that even if the bottle is not filled to the preset level, a warning will still be triggered if the pump is tilted or shaken. ② The liquid level sensor's accuracy is insufficient. Generally, to avoid contact between the sensor and the breast milk, breast pumps use non-contact capacitive liquid level sensors. These sensors need to be attached to the container wall. Most existing breast pumps place the sensor inside the bottom shell of the main unit, requiring the sensor to detect the liquid level through the bottom shell and the top wall of the bottle, thus affecting the sensor's accuracy.

[0004] To address the aforementioned issues, this solution proposes a wearable breast pump with a liquid level sensor. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a wearable breast pump with a liquid level sensing function, comprising: a main unit, a liquid level sensing module, and a baby bottle.

[0006] The host has a housing, inside which a receiving cavity is formed, and a circuit board is provided inside the receiving cavity. Sensor grooves are provided on both sides of the bottom surface of the housing.

[0007] The liquid level sensing module includes: a first liquid level sensor, a second liquid level sensor, and a fixed membrane. The fixed membrane is adhered and sealed to the sensor groove. The first liquid level sensor and the second liquid level sensor are disposed in the space formed by the fixed membrane and the sensor groove.

[0008] The baby bottle is connected to the bottom of the main unit. The baby bottle has a milk storage chamber inside. The first liquid level sensor and the second liquid level sensor are in contact with the upper surface of the baby bottle through the fixing membrane. When the first liquid level sensor and the second liquid level sensor simultaneously detect that the liquid in the milk storage chamber has reached a preset height, the circuit board issues a prompt message.

[0009] The bottom surfaces on both sides of the shell are horizontal end faces, and the top end face of the bottle is also a horizontal end face, corresponding to the bottom surface of the shell.

[0010] The sensor groove has a wire through hole at the bottom, through which the connecting wires of the first liquid level sensor and the second liquid level sensor pass and form an electrical connection with the circuit board.

[0011] The first liquid level sensor and the second liquid level sensor are capacitive liquid level sensors.

[0012] The circuit board is equipped with a prompting device, which includes an LED light and a buzzer. When the first liquid level sensor and the second liquid level sensor detect that the liquid level in the milk storage chamber has reached a preset height, a prompting signal can be emitted through the LED light and the buzzer.

[0013] The cavity contains a battery.

[0014] Implementing this utility model embodiment has the following beneficial effects: ① By setting a first liquid level sensor and a second liquid level sensor on both sides of the bottom of the main unit, a prompt signal will only be issued through the prompt module when both liquid level sensors detect the liquid level simultaneously, avoiding the problem of triggering a prompt even when the liquid level in the bottle has not reached the set height due to tilting or shaking. ② The sensor is tightly fixed to the bottom of the housing by a fixing film, and also tightly attached to the upper wall of the bottle, which not only shortens the detection distance between the liquid level sensor and the bottle, but also makes it easier to encapsulate during production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] Figure 2 This is a breakdown diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the bottom of the casing of this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0019] like Figures 1-3 As shown, a wearable breast pump with liquid level sensing function includes: a main unit 1, a liquid level sensing module 2, and a baby bottle 3.

[0020] The host 1 has a housing 11, an accommodating cavity is formed inside the housing 11, a circuit board 12 is provided inside the accommodating cavity, and sensor grooves 13 are provided on both sides of the bottom surface of the housing 11.

[0021] The liquid level sensing module 2 includes: a first liquid level sensor 21, a second liquid level sensor 22, and a fixed membrane 23. The fixed membrane 23 is attached and sealed to the sensor groove 13. The first liquid level sensor 21 and the second liquid level sensor 22 are disposed in the space formed by the fixed membrane 23 and the sensor groove 13.

[0022] The baby bottle 3 is connected to the bottom of the main unit 1. The baby bottle 3 has a milk storage chamber inside. The first liquid level sensor 21 and the second liquid level sensor 22 are in contact with the upper surface of the baby bottle 3 through the fixing film 23. When the first liquid level sensor 21 and the second liquid level sensor 22 simultaneously detect that the liquid in the milk storage chamber reaches a preset height, the circuit board 12 issues a prompt message.

[0023] like Figure 2 As shown, the bottom surfaces on both sides of the housing 11 and the top surface of the bottle 3 are both horizontal, thus the bottom surface of the housing 11 and the top surface of the bottle 3 fit together and correspond to each other.

[0024] like Figure 3 As shown, the bottom of the sensor groove 13 is provided with a wire through hole 131. The connecting wires of the first liquid level sensor 21 and the second liquid level sensor 22 pass through the wire through hole 131 and form an electrical connection with the circuit board 12.

[0025] More preferably, the circuit board 12 has a prompting device, which includes an LED light and a buzzer. When the first liquid level sensor 21 and the second liquid level sensor 22 detect that the liquid level in the milk storage chamber has reached a preset height, a prompting signal can be emitted through the LED light and the buzzer.

[0026] More preferably, the first liquid level sensor 21 and the second liquid level sensor 22 are non-contact capacitive liquid level sensors, which can detect the liquid level without contacting the liquid. Since they are commonly used accessories by those skilled in the art, they will not be described again.

[0027] It should be noted that the breast pump in this solution also includes a negative pressure module, airbag, duckbill valve, and other structures of a conventional breast pump, used to extract breast milk. The negative pressure module is connected and controlled via the circuit board, which also has button switches for controlling the negative pressure module and the indicator module. However, since the above structures are not the focus of this solution, and such solutions are mature and existing technologies in the breast pump product, those skilled in the art can directly apply existing mature technologies to this solution, so they will not be described again.

[0028] Operating principle: The user wears a breast pump to express breast milk, which enters the bottle 3. When the breast milk in the storage chamber reaches a preset height, the first liquid level sensor 21 and the second liquid level sensor 22 simultaneously send out trigger signals. After the control unit on the circuit board 12 receives the two trigger signals simultaneously, it controls the prompt module to issue a prompt message. When one liquid level sensor sends a trigger signal alone, but the other liquid level sensor does not trigger, the prompt module does not operate.

[0029] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A wearable breast pump with a liquid level sensing function, characterized in that, include: The main unit (1), the liquid level sensing module (2), and the baby bottle (3); The host (1) has a housing (11), and a receiving cavity is formed inside the housing (11). A circuit board (12) is provided inside the receiving cavity. Sensor grooves (13) are provided on both sides of the bottom surface of the housing (11). The liquid level sensing module (2) includes: a first liquid level sensor (21), a second liquid level sensor (22) and a fixed membrane (23). The fixed membrane (23) is attached and sealed to the sensor groove (13). The first liquid level sensor (21) and the second liquid level sensor (22) are arranged in the space formed by the fixed membrane (23) and the sensor groove (13). The baby bottle (3) is connected to the bottom of the host (1). The baby bottle (3) has a milk storage chamber inside. The first liquid level sensor (21) and the second liquid level sensor (22) are connected to the upper surface of the baby bottle (3) through the fixing membrane (23). When the first liquid level sensor (21) and the second liquid level sensor (22) simultaneously detect that the liquid in the milk storage chamber reaches a preset height, the circuit board (12) issues a prompt message.

2. A wearable breast pump with liquid level sensing function according to claim 1, characterized in that, The bottom surfaces on both sides of the shell (11) and the top surface of the bottle (3) are both horizontal, and thus the bottom surface of the shell (11) and the top surface of the bottle (3) fit together and correspond to each other.

3. A wearable breast pump with liquid level sensing function according to claim 1, characterized in that, The bottom of the sensor groove (13) is provided with a wire through hole (131), and the connecting wires of the first liquid level sensor (21) and the second liquid level sensor (22) pass through the wire through hole (131) and form an electrical connection with the circuit board (12).

4. A wearable breast pump with liquid level sensing function according to claim 1, characterized in that, The first liquid level sensor (21) and the second liquid level sensor (22) are non-contact capacitive liquid level sensors.

5. A wearable breast pump with liquid level sensing function according to claim 1, characterized in that, The circuit board (12) has a prompting device, which includes an LED light and a buzzer. When the first liquid level sensor (21) and the second liquid level sensor (22) sense that the liquid level in the milk storage chamber has reached a preset height, a prompting signal can be emitted through the LED light and the buzzer.

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