CN114099813A

CN114099813A - Variable frequency control mode of variable frequency breast pump

Info

Publication number: CN114099813A
Application number: CN202111353263.7A
Authority: CN
Inventors: 朱天翔; 许壮; 钱旭峰; 陈高翔; 余浩晨; 翁晨斌; 励蕾
Original assignee: Ningbo Rushan Intelligent Technology Co ltd
Current assignee: Ningbo Rushan Intelligent Technology Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-03-01

Abstract

The utility model provides a frequency conversion control mode of frequency conversion formula breast pump, its is including inhaling milk unit, suction unit and the control unit, and wherein suction unit is including suction pump and solenoid valve, and the control unit is connected with suction pump and solenoid valve, controls the work of suction pump and solenoid valve, its characterized in that: under the same suction gear, the working time of the suction pump in each suction period is controlled to realize variable frequency work; the problem that the body irritation is weakened due to the fact that the fixed frequency is used for a long time is solved; the milk gust is triggered by the constantly changing frequency, which simulates the natural sucking of a baby.

Description

Variable frequency control mode of variable frequency breast pump

Technical Field

The invention relates to a control mode of a breast pump, in particular to a variable frequency control mode of a variable frequency breast pump.

Background

With the development and progress of the modern society, the breast pump is produced according to the principle in order to better help the breastfeeding mothers to suck and collect breast milk efficiently and quickly. The breast pump can solve the problem of the bloated milk of the vast mothers, and can help the mothers to get through the mammary gland when the mammary gland is blocked, so that the breast pump is deeply loved by the vast mothers.

At present, in the traditional breast pumps in the market, the frequency is different at different gears instead of realizing the frequency change at the same gear, although the purpose of sucking breast milk to feed babies can be achieved, the traditional breast pumps have the concentrated problems that the breast milk is sucked at a fixed frequency for a long time, the stimulation is weakened after the body of the baby mother adapts, the breast milk sucking efficiency is greatly reduced, the real breast milk sucking environment of the baby cannot be simulated, and the like.

1. The frequency conversion of the breast pumps on the market is different in frequency at different gears, but not in the same gear;

2. the fixed frequency is used for a long time, the stimulation is weakened due to the body adaptation, and the milk sucking efficiency is reduced;

3. the fixed frequency of milk pumping does not simulate the real milk pumping environment of a baby.

Therefore, it is urgently needed to design a variable frequency breast pump which can work in an up-conversion mode at the same gear.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a frequency conversion control mode of the frequency conversion type breast pump aiming at the technical current situation, so as to realize the change of different frequencies of the same gear.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a frequency conversion control mode of frequency conversion formula breast pump, its is including inhaling milk unit, suction unit and the control unit, and wherein suction unit is including suction pump and solenoid valve, and the control unit is connected with suction pump and solenoid valve, controls the work of suction pump and solenoid valve, its characterized in that: and under the same suction gear, the working time of the suction pump in each suction period is controlled, so that the variable-frequency work is realized.

Furthermore, the same suction gear is realized by applying different voltages to the motor of the suction pump in a mode of adjusting pwm duty ratio of an execution signal output by the control unit.

Preferably, the frequency conversion is performed at a random frequency.

As a second preference, the frequency of the variable frequency operation is arranged in sequence and repeated in a cycle.

Preferably, the frequency of the variable frequency operation is repeated in a round-trip arrangement.

Further, the frequencies adjacent to the arrangement are gradually increased, and the period time difference of the frequencies is controlled to be between 40 and 200 ms.

Still further, the arrangement selects 5 frequencies ABCDE.

Finally, the frequency conversion mode is as follows: (ii) A-B-C-D-E-D-C-B, wherein T is ≦ 60ms_A-T_B≦150ms，50ms≦T_B-T_C≦150ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦ 150 ms; in the alternative, the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the second,

(ii) A-B-C-D-E, wherein T is ≦ 60ms_A-T_B≦150ms，50ms≦T_B-T_C≦150ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦ 150 ms; in the alternative, the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the second,

③ A-C-D-D-C-E-D-E, wherein T is less than or equal to 100ms_A-T_C≦250ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦150ms，80ms≦T_C-T_E≦200ms。

Compared with the prior art, the invention has the advantages that:

1. the aim of changing frequency change is achieved by continuously changing the working time and the working voltage of the pump in the same gear;

2. the problem that the body irritation is weakened due to the fact that the fixed frequency is used for a long time is solved;

3. the milk gust is triggered by simulating the natural sucking of the baby through the constantly changing frequency;

4. a new working mode can be realized only by installing new control software on the traditional variable-frequency breast pump; increase new varieties.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a circuit block diagram of the present embodiment;

FIG. 3 is a schematic view of the suction cycle in the present embodiment;

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in figures 1 to 3, a variable frequency breast pump comprises:

the milk sucking unit comprises a cup and a three-way connector, the three-way connector comprises a first connector, a second connector and a third connector, the first connector is connected with the cup, and the second connector is used for being connected with a milk bottle for receiving milk;

the suction unit comprises a suction pump and an electromagnetic valve, and the suction pump and the electromagnetic valve are respectively connected with the third phase joint through air pipes;

the control unit is connected with the suction pump and the electromagnetic valve, and is used for setting the output power of the suction pump and the opening and closing time of the electromagnetic valve and controlling the work of the suction pump and the electromagnetic valve according to the set parameters;

the control unit comprises a single chip microcomputer control module, a motor control circuit, a power supply IC module, a display module, a key module, a voltage stabilizing module, a charging module and the like, and the control unit is a basic component of the traditional breast pump.

The key points of the invention are as follows:

the single-chip microcomputer control module controls the display module to achieve the function of lighting the corresponding nixie tube in real time, the control key module achieves different modes and the switching function of gears, different working states of the pump valve are achieved through the motor control circuit, and therefore changes of different frequencies of the same gear are achieved.

After the variable-frequency breast pump enters a variable-frequency breast pumping mode, the variable-frequency breast pump can automatically enter a variable-frequency working state.

In the whole frequency conversion breast-pumping process, the suction force of the same gear is kept unchanged, the working time of the pump and the working voltage of the pump are changed, and therefore the frequency conversion purpose is achieved.

The suction control is not changed by giving different voltages to the motor by adjusting pwm duty ratio, for example, the voltage is given low when the pump works for a long time, and the voltage is given high when the pump works for a short time.

The frequency of the frequency conversion is determined by adjusting the working time of each suction period of the suction pump, and the frequency refers to the working times of the pump within 1 minute, namely the working time of the suction pump is continuously adjusted, so that the frequency conversion can be continuously changed.

The frequency conversion mode has three main modes, namely frequency conversion work, wherein the frequency is arranged in a reciprocating repeated cycle, a sequential repeated cycle or a random arrangement. The frequencies arranged adjacently are increased gradually, and the period time difference of the frequencies is controlled to be between 40 and 200 ms.

Examples are: there are 5 ABCDE frequencies, which can be understood as a times of 1 minute operation, i.e. frequency a, and there are 3 frequency conversion modes that can be selected or combined as follows:

1) A-B-C-D-E-D-C-B, wherein T is ≦ 60ms_A-T_B≦150ms，50ms≦T_B-T_C≦150ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦ 150 ms; t represents a cycle time;

FIG. 3 illustrates that A has a pump on time of 1600ms, valve on time of 400ms, and a complete suction cycle time of 2000 ms;

the working time of one pump of the B is 1500ms, the valve works for 400ms, and the time of a complete suction cycle is 1900 ms; and so on.

After the first suction cycle is over, the first suction curve is also over. The time of the second suction cycle is shorter than that of the first suction cycle, namely the working cycle duration of the pump is changed, and the like, namely the time of the next suction cycle is changed every complete suction cycle, which is the working principle of frequency conversion.

In the alternative, the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the second,

2) A-B-C-D-E, wherein T is ≦ 60ms_A-T_B≦150ms，50ms≦T_B-T_C≦150ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦ 150 ms; in the alternative, the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the second,

3) A-C-D-D-C-E-D-E, wherein T is ≦ 100ms_A-T_C≦250ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦150ms，80ms≦T_C-T_E≦200ms。

Here, a cycle time at a certain frequency is represented.

The frequency of the breast pump is changed by continuously changing the working time of the pump and the working voltage of the pump, so that the frequency conversion function is realized;

under the same gear, the change of frequency does not influence the suction force, and the suction force is unchangeable.

This can be achieved by tuning the voltage of the suction pump and the time, frequency relationship of each suction cycle.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a frequency conversion control mode of frequency conversion formula breast pump, its is including inhaling milk unit, suction unit and the control unit, and wherein suction unit is including suction pump and solenoid valve, and the control unit is connected with suction pump and solenoid valve, controls the work of suction pump and solenoid valve, its characterized in that: and under the same suction gear, the working time of the suction pump in each suction period is controlled, so that the variable-frequency work is realized.

2. The frequency conversion control method of the frequency conversion type breast pump according to claim 1, characterized in that: the same suction gear is realized by applying different voltages to a motor of the suction pump in a mode of adjusting pwm duty ratio of an execution signal output by the control unit.

3. The frequency conversion control method of the frequency conversion type breast pump according to claim 1, characterized in that: the frequency conversion works with a random frequency.

4. The frequency conversion control method of the frequency conversion type breast pump according to claim 1, characterized in that: the frequency of the frequency conversion work is arranged in sequence and repeated circulation.

5. The frequency conversion control method of the frequency conversion type breast pump according to claim 1, characterized in that: the frequency of the frequency conversion work is arranged and repeatedly circulated back and forth in sequence.

6. The frequency conversion control method of the frequency conversion type breast pump according to claim 1, characterized in that: the frequencies adjacent to the array are gradually increased, and the period time difference of the adjacent frequencies is controlled to be between 40 and 200 ms.

7. The frequency conversion control method of the variable frequency breast pump according to claim 6, characterized in that: the arrangement selects 5 ABCDE frequencies.

8. The frequency conversion control method of the frequency conversion type breast pump according to claim 7, characterized in that: the frequency conversion mode is as follows: (ii) A-B-C-D-E-D-C-B, wherein T is ≦ 60ms_A-T_B≦150ms，50ms≦T_B-T_C≦150ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦ 150 ms; in the alternative, the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the first and second sets of the second,

③A-C-D-D-C-E-D-E, wherein T is ≦ 100ms_A-T_C≦250ms，45ms≦T_C-T_D≦150ms，40ms≦T_D-T_E≦150ms，80ms≦T_C-T_E≦200ms。