Electrically powered liquid food booster

Abstract

The utility model belongs to the field of liquid food booster, specifically disclose a kind of electric liquid food booster, including shell, the pump for conveying liquid food is equipped in shell, control circuit for controlling pump start-stop, further include temperature sensor for monitoring liquid food temperature, fluid sensor for monitoring whether there is liquid food in the liquid food conveying pipe at pump outlet, speed regulating knob for adjusting the DC motor rotating speed of pump to realize liquid food conveying speed adjustment, time regulating knob for adjusting the single work length of the DC motor of pump to realize single liquid food conveying length adjustment, the control circuit is connected with temperature sensor, fluid sensor, time regulating knob, speed regulating knob and the DC motor of pump respectively.The utility model has solved the problem that existing liquid food booster is more dependent on nursing staff due to the imperfect function, and has the advantages of perfect function, easy operation, low degree of dependence on nursing staff during use.

Description

Technical Field

[0001] This utility model belongs to the field of liquid food boosters, specifically an electric liquid food booster that can adjust and automatically monitor the delivery of liquid food. Background Technology

[0002] A liquid food delivery device is a device used to help deliver liquid foods, especially suitable for people who are unable to feed themselves, such as bedridden patients, the elderly, or those with swallowing difficulties. This device uses mechanical or hydraulic means to deliver liquid foods from a storage container to an outlet, making it easier for users to ingest nutrients and food.

[0003] With an aging population and advancements in medical technology, the market demand for assisted feeding devices is increasing. Traditional methods, such as manual feeding, suffer from inefficiency and inconvenience, prompting the development of liquid feeding aids.

[0004] Chinese utility model patent (CN 214859361 U) discloses an electric liquid food pusher with heat preservation and disinfection functions. The device uses a fan to drive airflow, allowing the heat generated by the internal components to be blown out of the casing. A dustproof block prevents external dust from entering the device. This design keeps the temperature of the internal components within a controllable range, preventing overheating and extending the device's lifespan. A disinfection lamp sterilizes the nasogastric tube, ensuring its safety after each use. After sterilization, the tube is removed and connected to a syringe. The user pre-sets the feeding rate and temperature setting on the LCD screen using operation buttons, and then pours the liquid food into the feeding cylinder. The user-set temperature is monitored in real-time by a temperature sensor. If the temperature does not meet the set range, a signal is sent back to the LCD screen, and the user can use operation buttons to heat or cool the thermoelectric cooler, maintaining its temperature within a specific range. Although the above-mentioned electric liquid feeding booster can monitor the temperature of the liquid food in the feeding cylinder and can also set or adjust the feeding rate and liquid food heat preservation temperature through the operation button, it has the following shortcomings: (1) It cannot directly set or adjust the feeding time each time, and its adaptability is poor; (2) It cannot automatically monitor whether there is liquid food in the nasogastric tube at the syringe outlet, and it is easy to introduce air into the patient's body due to the manual shutdown operation not being timely after the liquid food is delivered; (3) It cannot provide an alarm reminder when the liquid food temperature does not meet the set temperature range or when there is no liquid food in the nasogastric tube at the syringe outlet, and it cannot make the syringe stop working automatically, which can easily affect the patient's health due to liquid food or air entering the patient's body at excessively high or low temperatures.

[0005] Most existing electric liquid feeding aids use a brushed / brushless motor with a peristaltic pump head. Their functionality is limited to adjusting the liquid feeding speed, but they lack functions such as adjusting the duration of each liquid feeding session, monitoring the liquid feeding temperature, monitoring the presence of liquid feeding in the feeding tube, and automatically stopping or alarming when the liquid feeding temperature exceeds the appropriate range or when there is no liquid feeding in the feeding tube. During liquid feeding, excessively long feeding sessions can easily lead to patients consuming too much at once, causing food reflux, or the entry of excessively hot or cold liquid feeding or air into the patient's body, affecting the patient's health. Therefore, existing electric liquid feeding aids are highly dependent on caregivers when in use. Utility Model Content

[0006] In order to overcome the shortcomings of existing liquid food delivery devices, which are prone to affecting the patient's health during liquid food delivery due to imperfect functions and are more dependent on caregivers, this utility model provides an adjustable and automatically monitored electric liquid food delivery device.

[0007] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0008] An electric liquid food booster includes a housing containing a pump for delivering liquid food, a control circuit for controlling the pump's start and stop, a temperature sensor for monitoring the liquid food temperature, a fluid sensor for monitoring the presence of liquid food in the liquid food delivery pipe at the pump outlet, a speed control knob for adjusting the speed of the pump's DC motor to regulate the liquid food delivery speed, and a time control knob for adjusting the single operating time of the pump's DC motor to regulate the single liquid food delivery time. The control circuit is connected to the temperature sensor, the fluid sensor, the time control knob, the speed control knob, and the pump's DC motor. In use, the temperature sensor probe can be placed at any suitable position that accurately measures the liquid food temperature and ensures that liquid food exceeding the temperature range set by the control circuit will not flow out of the liquid food delivery pipe at the pump outlet. This invention monitors the temperature of the liquid food using a temperature sensor. When the temperature exceeds the temperature range set by the control circuit, the control circuit stops or prevents the DC motor of the pump from starting, thus preventing burns or other discomfort to the patient due to excessively high or low temperatures. During the liquid food delivery process, when the fluid sensor detects no liquid food in the delivery tube at the pump outlet, the control circuit stops the DC motor of the pump, preventing air from entering the patient's body and affecting their health. Furthermore, the feeding rate can be adjusted at any time using a speed control knob and the duration of each feeding session can be adjusted using a time control knob, making this electric liquid food pusher highly adaptable and flexible in use.

[0009] Furthermore, it also includes a display screen for human-computer interaction and a buzzer for alarm. The control circuit is an integrated control board, which includes a main control module and a display screen driver circuit, a speed control knob circuit, a time control knob circuit, a DC motor driver circuit, a power supply circuit, a buzzer driver circuit, a temperature sensing signal acquisition circuit, and a liquid sensing signal acquisition circuit, all connected to the main control module. The display screen driver circuit is connected to the display screen, the speed control knob circuit is connected to the speed control knob, the time control knob circuit is connected to the time control knob, the DC motor driver circuit is connected to the DC motor of the pump, the buzzer driver circuit is connected to the buzzer, the temperature sensing signal acquisition circuit is connected to the temperature sensor, and the liquid sensing signal acquisition circuit is connected to the fluid sensor. This utility model is equipped with a display screen to display the specific values ​​of parameters such as liquid food temperature, motor speed gear, remaining working time of a single operation, and battery voltage in real time; when the main control module determines that the liquid food temperature detected by the temperature sensor exceeds the temperature range set by its program, when there is no liquid food in the liquid food delivery pipe at the pump outlet, or when a single liquid food delivery is completed, an alarm will be triggered by a buzzer to promptly remind the caregiver.

[0010] Furthermore, the main control module is a microcontroller, the display screen is an OLED screen, and the display screen driving circuit is an OLED screen driving circuit.

[0011] Preferably, the microcontroller is an STM32F103C8T6 microcontroller. Pins PB12 and PB13 of the STM32F103C8T6 microcontroller are connected to the OLED screen driving circuit, pin PB15 is connected to the buzzer driving circuit, pin PA2 is connected to the power supply circuit, pin PA8 is connected to the temperature sensing signal acquisition circuit, pin PB14 is connected to the liquid sensing signal acquisition circuit, pins PA0 and PA1 are connected to the speed control knob circuit and the time control knob circuit, respectively, and pin PA7 is connected to the DC motor driving circuit.

[0012] Furthermore, the power supply circuit includes a DC5V step-down regulator module U2, a power switch U4, a charging module U5, and a connector CN1 for connecting the battery pack. The DC5V step-down regulator module U2 is model DM02-28050016DS, and the charging module U5 is model GXHF0139. Pins 6 and 7 of the charging module U5 are connected to the charging interface, pin 3 of the charging module U5 is connected to the charging balance line, and pins 2 and 4 of the charging module U5 are connected to the power switch U4 and the DC5V step-down regulator module U2 respectively through connector CN1. Pin 8 of the DC5V step-down regulator module U2 is connected to pin PA2 of the STM32F103C8T6 microcontroller.

[0013] Furthermore, the battery pack includes batteries and a series-connected battery bracket, which is connected to the connector CN1.

[0014] Furthermore, the DC motor drive circuit includes a motor drive module U3, which is an A4950 motor drive module. Pins 6 and 7 of the motor drive module U3 are connected to the DC motor via connector CN4, and pins 13 and 14 of the motor drive module U3 are connected to the DC motor via connector CN2. Pins 5 and 12 of the motor drive module U3 are connected to pin PA7 of the STM32F103C8T6 microcontroller. The DC motor drive circuit drives the DC motor to drive the pump head for liquid food delivery.

[0015] Furthermore, the housing includes a front housing and a rear housing; the front housing has an integrated control board mounting platform and a pump mounting slot, the front of the front housing has a display screen opening, a time adjustment knob opening, a speed adjustment knob opening and a buzzer opening, and the side of the front housing has a power switch opening, a TYPE-C charging interface opening, a charging indicator light opening, a fluid sensor interface opening and a temperature sensor interface opening; the rear housing has a battery pack mounting platform and a pump mounting slot.

[0016] Furthermore, the pump is a silent pump, which includes a DC motor and a diaphragm silent pump head, the diaphragm silent pump head being connected to the DC motor.

[0017] Preferably, the speed control knob has at least 5 positions, with position 0 being the stop position.

[0018] Preferably, both the front and rear shells are integrally formed by 3D printing.

[0019] This invention solves the problem that existing liquid food delivery aids are prone to affecting patients' health and are highly dependent on caregivers due to imperfect functions. It has the advantages of complete functions, simple operation, and low dependence on caregivers during use. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the electric liquid food booster according to an embodiment of the present utility model;

[0021] Figure 2 This is a second-view structural schematic diagram of the electric liquid food booster according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the electric liquid food booster according to an embodiment of the present invention after removing the front outer shell.

[0023] Figure 4 This is a schematic diagram of the structure of the electric liquid food booster according to an embodiment of the present utility model after removing the rear outer shell;

[0024] Figure 5This is a schematic diagram of the control circuit of the electric liquid food booster according to an embodiment of the present invention;

[0025] Figure 6 for Figure 5 The schematic diagram of the main control module circuit shown is shown below;

[0026] Figure 7 for Figure 5 The power supply circuit schematic shown is shown below;

[0027] Figure 8 for Figure 5 The schematic diagram of the DC motor drive circuit shown in the figure;

[0028] Figure 9 for Figure 5 The schematic diagram of the speed control circuit shown in the figure;

[0029] Figure 10 for Figure 5 The schematic diagram of the time adjustment circuit shown in the figure;

[0030] Figure 11 for Figure 5 The schematic diagram of the buzzer circuit shown is shown below.

[0031] Figure 12 for Figure 5 The schematic diagram of the temperature sensing signal acquisition circuit is shown below;

[0032] Figure 13 for Figure 5 The schematic diagram of the liquid sensor signal acquisition circuit shown is shown below;

[0033] Figure 14 for Figure 5 The schematic diagram of the display screen driver circuit is shown below.

[0034] Explanation of reference numerals in the attached diagram: 1. Front housing; 2. Speed ​​control knob; 3. Time control knob; 4. Power switch; 5. Charging indicator light; 6. TYPE-C charging port; 7. Display screen opening; 8. Buzzer port; 9. Fluid sensor interface opening; 10. Temperature sensor interface opening; 11. Pump; 12. Integrated control board; 13. Power supply circuit; 14. Display screen; 15. Buzzer; 16. Rear housing; 17. Battery; 18. Series battery bracket. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1 to 14 As shown, the electric liquid food booster of this embodiment includes a housing, within which is a pump 11 for conveying liquid food, a control circuit for controlling the pump's start and stop, a temperature sensor for monitoring the liquid food temperature, a fluid sensor for monitoring the presence of liquid food in the liquid food delivery tube at the pump outlet, a speed control knob 2 for adjusting the speed of the pump's DC motor to regulate the liquid food delivery speed, and a time control knob 3 for adjusting the single working time of the pump's DC motor to regulate the single liquid food delivery time. The control circuit is connected to the temperature sensor, the fluid sensor, the time control knob 2, the speed control knob 3, and the pump's DC motor, respectively. In use, the probe of the temperature sensor can be placed at any suitable position that can accurately measure the temperature of the liquid food and ensure that liquid food exceeding the temperature range set by the control circuit will not flow out of the liquid food delivery tube at the pump outlet. For example, the probe of the temperature sensor can be placed inside the liquid food in the liquid food container; or the probe of the temperature sensor can be placed on the surface of a specially designed food-grade or medical-grade stainless steel pipe joint on the liquid food delivery tube with good thermal conductivity. This invention monitors the temperature of the liquid food using a temperature sensor. When the temperature of the liquid food exceeds the temperature range set by the control circuit, the control circuit controls the DC motor of the pump to not start or stop working, thereby preventing the liquid food from being too hot or too cold, which could cause burns or other discomfort to the patient after eating. During the liquid food delivery process, when the fluid sensor detects that there is no liquid food in the liquid food delivery tube at the pump outlet, the control circuit controls the DC motor of pump 11 to stop running. During the liquid food delivery process, the feeding rate can also be adjusted by the speed control knob 2 and the duration of a single feeding can be adjusted by the time control knob 3 according to the patient's eating situation. Therefore, the electric liquid food booster of this embodiment has good adaptability and flexibility of use.

[0037] Furthermore, it also includes a display screen 14 for human-computer interaction and a buzzer 15 for alarm. The control circuit is an integrated control board 12, which includes a main control module and a display screen driving circuit, a speed control knob circuit, a time control knob circuit, a DC motor driving circuit, a power supply circuit 13, a buzzer driving circuit, a temperature sensing signal acquisition circuit, and a liquid sensing signal acquisition circuit, all of which are connected to the main control module. The display screen driving circuit is connected to the display screen 14, the speed control knob circuit is connected to the speed control knob 2, the time control knob circuit is connected to the time control knob 3, the DC motor driving circuit is connected to the DC motor of the pump, the buzzer driving circuit is connected to the buzzer 15, the temperature sensing signal acquisition circuit is connected to the temperature sensor, and the liquid sensing signal acquisition circuit is connected to the fluid sensor. This utility model is equipped with a display screen 14 to display specific parameters such as liquid food temperature, motor speed gear, remaining working time and battery voltage in real time; when the main control module determines that the liquid food temperature detected by the temperature sensor exceeds the temperature range set by its program, when there is no liquid food in the liquid food delivery pipe at the pump outlet, or when a single liquid food delivery is completed, an alarm is triggered by a buzzer 15 to promptly remind the caregiver.

[0038] Furthermore, the main control module is a microcontroller, the display screen 14 is an OLED screen, and the display screen driving circuit is an OLED screen driving circuit.

[0039] Preferably, the microcontroller is an STM32F103C8T6 microcontroller. Pins PB12 and PB13 of the STM32F103C8T6 microcontroller are connected to the OLED screen driving circuit, pin PB15 is connected to the buzzer driving circuit, pin PA2 is connected to the power supply circuit, pin PA8 is connected to the temperature sensing signal acquisition circuit, pin PB14 is connected to the liquid sensing signal acquisition circuit, pins PA0 and PA1 are connected to the speed control knob circuit and the time control knob circuit, respectively, and pin PA7 is connected to the DC motor driving circuit.

[0040] Furthermore, the power supply circuit 13 includes a DC5V step-down regulator module U2, a power switch U4, a charging module U5, and a connector CN1 for connecting the battery pack. The DC5V step-down regulator module U2 is model DM02-28050016DS, and the charging module U5 is model GXHF0139. Pins 6 and 7 of the charging module U5 are connected to the charging interface, pin 3 of the charging module U5 is connected to the charging balance line, and pins 2 and 4 of the charging module U5 are connected to the power switch U4 and the DC5V step-down regulator module U2 respectively through connector CN1. Pin 8 of the DC5V step-down regulator module U2 is connected to pin PA2 of the STM32F103C8T6 microcontroller.

[0041] Furthermore, the battery pack includes a battery 17 and a series-connected battery bracket 18, which is connected to the connector CN1. The battery 17 consists of two 18650 batteries connected in series to provide a 7.4V, 2000mAh power output, and features balanced charging functionality. A DC 5V step-down regulator circuit steps down the total 7.4V power supply to a stable 5V voltage to power various circuits.

[0042] Furthermore, the DC motor drive circuit includes a motor drive module U3, which is an A4950 motor drive module. Pins 6 and 7 of the motor drive module U3 are connected to the DC motor via connector CN4, and pins 13 and 14 of the motor drive module U3 are connected to the DC motor via connector CN2. Pins 5 and 12 of the motor drive module U3 are connected to pin PA7 of the STM32F103C8T6 microcontroller. The DC motor drive circuit drives the DC motor to drive the pump head for liquid food delivery.

[0043] Furthermore, the housing includes a front housing 1 and a rear housing 16; the front housing 1 is provided with an integrated control board mounting platform and a pump mounting slot, the front of the front housing 1 is provided with a display screen opening 7, a time adjustment knob opening, a speed adjustment knob opening and a buzzer opening 8, the side of the front housing is provided with a power switch opening 4, a TYPE-C charging interface opening 6 and a charging indicator light opening 5, a fluid sensor interface opening 9 and a temperature sensor interface opening 10; the rear housing 16 is provided with a battery pack mounting platform and a pump mounting slot.

[0044] Furthermore, pump 11 is a silent pump, which includes a DC motor and a diaphragm silent pump head, the diaphragm silent pump head being connected to the DC motor.

[0045] Preferably, the speed control knob 2 has at least 5 positions, with position 0 being the stop position; the time control knob sets the duration of a single DC motor operation (accumulated in 10-second increments, up to a maximum of 100 seconds).

[0046] Preferably, both the front shell 1 and the rear shell 16 are integrally formed by 3D printing.

[0047] The microcontroller, DC5V step-down regulator module U2, charging module U5, and motor drive module U3 in this utility model can be replaced with other models with the same functions. The fluid sensor, temperature sensor, time adjustment knob, speed adjustment knob, and OLED screen are all of the same general type.

[0048] Preferably, the OLED screen interface displays: liquid food temperature (°C), battery voltage (V), motor speed level (0-3, 0 is stop), and remaining time for a single operation (S).

[0049] The working principle and process of the electric liquid food booster in this embodiment are as follows:

[0050] (1) Power switch 4 is turned on, the system is initialized, the DC motor starts at the default speed of 1, the pump starts initialization, when the fluid sensor detects liquid in the delivery pipe at the pump outlet, the liquid sensing signal acquisition circuit feeds back the corresponding signal to the main control module, the main control module controls the DC motor to stop working through the DC motor drive circuit, then the main control module detects and judges whether the speed control knob 2 is at speed 0 (speed 0 is the stop position), if not, the main control module controls the buzzer 15 to emit a "beep" sound through the buzzer drive circuit and continuously prompts at 500ms interval, if so, the main control module receives the signal obtained by the temperature sensor detecting the liquid temperature and transmitted by the temperature sensing signal acquisition circuit and judges whether the temperature is within 10-40℃, if not, controls the buzzer 15 to emit a "beep" sound and continuously prompts at 500ms interval, if so, controls the buzzer to emit a "beep" sound and continuously prompts for 2 seconds, the initialization is completed;

[0051] (2) Rotate the time adjustment knob 3 to set the single DC motor working time (i.e., the single liquid food delivery time), which is accumulated in 10-second increments, with a maximum support of 100 seconds. The countdown is displayed on the OLED screen. Then, rotate the speed adjustment knob 2 to start the liquid food delivery and adjust the liquid food delivery speed as needed. The DC motor speed corresponding to the 0-4 gears of the speed adjustment knob 2 increases sequentially, and the liquid food delivery speed increases sequentially. At this time, the remaining time of the single motor operation on the OLED screen interface starts counting down (decreasing by 1 second). When the countdown ends, the main control module controls the DC motor to stop working through the DC motor drive circuit. The timer bar on the OLED screen interface re-displays the single DC motor working time set by the time adjustment knob 3 at this time, and the buzzer 15 emits a "beep" sound and continues for 2 seconds to indicate that the single operation is completed.

[0052] (3) During the operation of the DC motor, if the fluid sensor detects that there is no liquid in the delivery pipe at the pump outlet, the liquid sensor signal acquisition circuit will feed back the corresponding signal to the main control module. The main control module will control the DC motor to stop working through the DC motor drive circuit, and the buzzer 15 will emit a "beep" sound and continuously prompt at 500ms intervals. If the main control module determines that the liquid temperature exceeds the range of 10-40℃, it will control the DC motor to stop working through the DC motor drive circuit and control the buzzer to emit a "beep beep" sound through the buzzer drive circuit and continuously prompt at 500ms intervals.

[0053] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An electric liquid food delivery device, comprising a housing, wherein the housing contains a pump for delivering liquid food and a control circuit for controlling the pump's start and stop, characterized in that: It also includes a temperature sensor for monitoring the temperature of the liquid food, a fluid sensor for monitoring whether there is liquid food in the liquid food delivery pipe at the pump outlet, a speed control knob for adjusting the speed of the pump's DC motor to adjust the liquid food delivery speed, and a time control knob for adjusting the single working time of the pump's DC motor to adjust the single liquid food delivery time. The control circuit is connected to the temperature sensor, the fluid sensor, the time control knob, the speed control knob, and the pump's DC motor, respectively.

2. The electric liquid food booster according to claim 1, characterized in that: It also includes a display screen for human-computer interaction and a buzzer for alarm. The control circuit is an integrated control board, which includes a main control module and a display screen driver circuit, a speed control knob circuit, a time control knob circuit, a DC motor driver circuit, a power supply circuit, a buzzer driver circuit, a temperature sensing signal acquisition circuit, and a liquid sensing signal acquisition circuit, all connected to the main control module. The display screen driver circuit is connected to the display screen, the speed control knob circuit is connected to the speed control knob, the time control knob circuit is connected to the time control knob, the DC motor driver circuit is connected to the DC motor of the pump, the buzzer driver circuit is connected to the buzzer, the temperature sensing signal acquisition circuit is connected to the temperature sensor, and the liquid sensing signal acquisition circuit is connected to the fluid sensor.

3. The electric liquid food booster according to claim 2, characterized in that: The main control module is a microcontroller, the display screen is an OLED screen, and the display screen driving circuit is an OLED screen driving circuit.

4. The electric liquid food booster according to claim 3, characterized in that: The microcontroller is an STM32F103C8T6 microcontroller. Pins PB12 and PB13 of the STM32F103C8T6 microcontroller are connected to the OLED screen driving circuit, pin PB15 is connected to the buzzer driving circuit, pin PA2 is connected to the power supply circuit, pin PA8 is connected to the temperature sensing signal acquisition circuit, pin PB14 is connected to the liquid sensing signal acquisition circuit, pins PA0 and PA1 are connected to the speed control knob circuit and the time control knob circuit respectively, and pin PA7 is connected to the DC motor driving circuit.

5. The electric liquid food booster according to claim 4, characterized in that: The power supply circuit includes a DC5V step-down regulator module U2, a power switch U4, a charging module U5, and a connector CN1 for connecting the battery pack. The DC5V step-down regulator module U2 is model DM02-28050016DS, and the charging module U5 is model GXHF0139. Pins 6 and 7 of the charging module U5 are connected to the charging interface, pin 3 of the charging module U5 is connected to the charging balance line, and pins 2 and 4 of the charging module U5 are connected to the power switch U4 and the DC5V step-down regulator module U2 respectively through connector CN1. Pin 8 of the DC5V step-down regulator module U2 is connected to pin PA2 of the STM32F103C8T6 microcontroller.

6. The electric liquid food booster according to claim 5, characterized in that: The battery pack includes batteries and a series-connected battery bracket, which is connected to the connector CN1.

7. The electric liquid food booster according to claim 4, characterized in that: The DC motor drive circuit includes a motor drive module U3, which is an A4950 motor drive module. Pins 6 and 7 of the motor drive module U3 are connected to the DC motor via connector CN4, and pins 13 and 14 of the motor drive module U3 are connected to the DC motor via connector CN2. Pins 5 and 12 of the motor drive module U3 are connected to pin PA7 of the STM32F103C8T6 microcontroller.

8. The electric liquid food booster according to claim 2, characterized in that: The housing includes a front housing and a rear housing; the front housing has an integrated control board mounting platform and a pump mounting slot, and the front of the front housing has a display screen opening, a time adjustment knob opening, a speed adjustment knob opening and a buzzer opening, and the side of the front housing has a power switch opening, a TYPE-C charging interface opening, a charging indicator light opening, a fluid sensor interface opening and a temperature sensor interface opening; the rear housing has a battery pack mounting platform and a pump mounting slot.

9. The electric liquid food booster according to claim 6, characterized in that: The pump is a silent pump, which includes a DC motor and a diaphragm silent pump head, and the diaphragm silent pump head is connected to the DC motor.

10. The electric liquid food booster according to claim 1, characterized in that: The speed control knob has at least 5 positions, with position 0 being the stop position.

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