Electric breast pump and control method thereof

Abstract

The invention relates to the technical field of breast pumps, and particularly discloses an electric breast pump and a control method of the electric breast pump, the electric breast pump comprises an upper cover and a support which are connected with each other, and a motor is arranged in a mounting cavity formed by the support and the upper cover; the sucker assembly and the leather cup are connected with the support, and the output end of the motor is connected with the leather cup and used for controlling the leather cup to move so that negative pressure can be formed in the sucker assembly. The motor is adopted to replace an air pump to control the leather cup to move, noise generated when the breast pump works can be reduced, and the breast pump can be conveniently used in a quiet environment. The size of the motor is small, a control box does not need to be independently arranged, and the overall size of the breast pump can be reduced; in addition, the situation of air leakage does not need to be worried about, and the use convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric breast pumps, and more specifically, to an electric breast pump and a control method for an electric breast pump. Background Art

[0002] An electric breast pump is a convenient tool to help lactating mothers extract milk, and its working principle is mainly based on the negative pressure principle.

[0003] Currently on the market, an air pump is used as a power source to drive a leather cup to reciprocate. During operation, the movement of the leather cup is controlled by the air pump to create a negative pressure in the breast milk suction cup, thereby sucking out the milk; however, such breast pumps will generate relatively large noise during operation, especially when used at night in a relatively quiet environment, which will affect the baby's rest; the air pumps of such breast pumps usually need to be connected to an air pipe and an air pump control box, which increases the volume and weight of the breast pump, making it inconvenient to carry and use. Moreover, when using it, it is also necessary to ensure the firmness of the connection of the air pipe, which also brings some trouble to the user.

[0004] Therefore, it is necessary to provide an electric breast pump and a control method for an electric breast pump to at least partially solve the problems existing in the prior art. Summary of the Invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further elaborated in detail in the Detailed Description section. The Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides an electric breast pump, including: an upper cover and a bracket connected to each other, and a motor is provided in the installation cavity formed by the bracket and the upper cover; a suction cup assembly and a leather cup connected to the bracket, and the output end of the motor is connected to the leather cup for controlling the movement of the leather cup to create a negative pressure in the suction cup assembly.

[0007] Preferably, it further includes: a control board and a battery provided in the installation cavity, and the battery is electrically connected to the control board and the motor respectively.

[0008] Preferably, the leather cup is hermetically connected between the suction cup assembly and the bracket.

[0009] Preferably, a connecting column is provided on the leather cup, and the connecting column is detachably connected to the output end of the motor.

[0010] Preferably, a fixing frame is provided at the top of the bracket, and the motor is connected to the fixing frame through a mounting plate provided thereon.

[0011] Preferably, a clamping joint is provided at the output end of the motor. An arc-shaped depression is provided on the side of the clamping joint. An installation hole is provided on the connecting column. A limiting cylinder is provided above the installation hole. A butting plate is provided below the limiting cylinder. The butting plate is connected to the bottom surface of the installation hole through an elastic member. A through hole through which the clamping joint can pass is provided on the butting plate. A pressing area is formed between the bottom of the limiting cylinder and the butting plate. A plurality of limiting blocks capable of forming a ring are provided in the pressing area. The inner side surface of the limiting block contacts the outer side surface of the clamping joint. The top end of the limiting block contacts the arc-shaped depression of the clamping joint.

[0012] Preferably, the inner side surface of the limiting block is a conical surface corresponding to the clamping joint. The upper outer side of the limiting block is a conical surface corresponding to the bottom of the limiting cylinder. The bottom end of the clamping joint is arc-shaped.

[0013] Preferably, a first sound collector for collecting internal noise in real time is provided in the installation cavity. The first sound collector is electrically connected to the control board. A loudspeaker electrically connected to the control board is also provided in the installation cavity. The loudspeaker is used to output reverse cancellation sound waves according to the internal noise.

[0014] Preferably, a second sound collector for collecting external noise in real time is provided on the outer side of the upper cover. The second sound collector is electrically connected to the control board. The control board identifies the current usage environment according to the externally collected noise in real time, and judges whether it is necessary to switch to the noise reduction mode according to the current usage environment.

[0015] The present invention also provides a control method for an electric breast pump, including:

[0016] Setting the current sucking frequency according to the usage requirements;

[0017] Driving the leather cup to reciprocate through the motor according to the current sucking frequency;

[0018] Obtaining the external environmental noise in real time, identifying the current usage environment, and judging whether it is necessary to switch to the noise reduction mode according to the current usage environment;

[0019] When it is necessary to switch to the noise reduction mode, noise generated during the operation of the motor is reduced in real time.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] For the electric breast pump and the control method of the electric breast pump of the present invention, a motor is used to replace the air pump to control the movement of the leather cup, which can reduce the noise during the operation of the breast pump and is convenient for use in a relatively quiet environment. The volume of the motor is small, and there is no need to separately set a control box, which can reduce the overall volume of the breast pump. In addition, there is no need to worry about air leakage at the connection of the air pipe, improving the convenience of use.

[0022] The electric breast pump and the control method thereof according to the present invention. Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0024] Figure 1 is a schematic exploded view of the electric breast pump according to the present invention;

[0025] Figure 2 is a schematic view of the structure inside the installation cavity of the electric breast pump according to the present invention;

[0026] Figure 3 is a schematic view of the installation structure of the motor and the bracket in the electric breast pump according to the present invention;

[0027] Figure 4 is a schematic view of the structure when the clamping joint in the electric breast pump is inserted into the limiting cylinder;

[0028] Figure 5 is a schematic view of the structure when the clamping joint in the electric breast pump continues to be inserted through the abutting plate;

[0029] Figure 6 is a schematic view of the structure when the clamping joint in the electric breast pump is inserted in place;

[0030] Figure 7 is a schematic view of the structure of the limiting block in the electric breast pump according to the present invention;

[0031] Figure 8 is a schematic view of the structure of the clamping joint in the electric breast pump according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following further describes the present invention in detail with reference to the drawings and embodiments, so that those skilled in the art can implement it according to the description in the specification.

[0033] It should be understood that the terms such as "having", "including" and "comprising" used herein do not exclude the existence or addition of one or more other elements or their combinations.

[0034] Such as Figure 1 - Figure 2As shown in the figure, the present invention provides an electric breast pump, comprising: an upper cover 1 and a bracket 2 which are connected to each other. An electric motor 4 is provided in an installation cavity 3 formed by the bracket 2 and the upper cover 1; a sucker assembly 5 and a leather cup 6 which are connected to the bracket 2. The output end of the electric motor 4 is connected to the leather cup 6 and is used to control the movement of the leather cup 6 so as to form a negative pressure in the sucker assembly 5.

[0035] The upper cover 1 and the bracket 2 can be detachably connected. The electric motor 4 is installed on the bracket 2. The top of the sucker assembly 5 is connected to the bracket 2, and the bottom is detachably connected to a milk bottle 16. A flared opening for fitting with the breast is provided on the side of the sucker assembly 5.

[0036] A sound-absorbing layer can be provided on the inner side of the upper cover 1.

[0037] The output end of the electric motor 4 refers to any component that can drive the movement of the leather cup 6; the electric motor 4 can be any one of the electric motors 4 in the prior art.

[0038] For example, the output end of the electric motor 4 is a shaft, and the shaft is connected to the leather cup 6 (specifically, the shaft is connected to the leather cup 6 through a transmission mechanism, which is the prior art and will not be elaborated here), so as to realize the reciprocating movement of the leather cup 6; or, the output end of the electric motor 4 is any one of its components that can output movement (such as the rotor of a frameless motor), and the shaft is arranged on the leather cup 6 (such as the shaft is integrally formed with the leather cup 6 or connected in any way), and the leather cup 6 is connected to the electric motor 4 through the shaft, so as to realize the reciprocating movement of the leather cup 6 (the shaft also needs to be connected to the electric motor 4 through a transmission mechanism, which is the prior art and will not be elaborated here).

[0039] During operation, when the electric motor 4 drives the leather cup 6 to move away from the sucker assembly 5, a negative pressure is formed in the sucker assembly 5, so as to suck the milk into the milk bottle 16. When the electric motor 4 drives the leather cup 6 to move towards the sucker assembly 5, the negative pressure in the sucker assembly 5 is released. By controlling the reciprocating movement of the leather cup 6 by the electric motor 4, the milk can be sucked out.

[0040] Through the above design, using the electric motor 4 instead of an air pump to control the movement of the leather cup 6 can reduce the noise during the operation of the breast pump and is convenient to use in a relatively quiet environment; the volume of the electric motor 4 is small, and there is no need to separately set a control box, which can reduce the overall volume of the breast pump; in addition, there is no need to worry about air leakage at the connection of the air pipe, improving the convenience of use.

[0041] As Figure 2 shown, further, it further comprises: a control board 7 and a battery 10 provided in the installation cavity 3. The battery 10 is electrically connected to the control board 7 and the electric motor 4 respectively.

[0042] The control board 7 is used to control the operation of the breast pump. The battery 10 provides electrical energy for the operation of the entire breast pump. A charging hole can be provided on the upper cover 1 or the bracket 2 for charging the battery 10.

[0043] As Figure 2 shown, in one embodiment, the leather cup 6 is sealingly connected between the suction cup assembly 5 and the bracket 2.

[0044] The bottom of the bracket 2 is provided with a mounting ring 21, the suction cup assembly 5 is provided with a connecting portion 51 corresponding to the mounting ring 21, the connecting portion 51 is snap-connected or threadedly connected to the mounting ring 21, and the outer periphery of the leather cup 6 is press-connected between the connecting portion 51 and the bracket 2.

[0045] A stepped surface is formed at the top of the mounting ring 21. During installation, the leather cup 6 is placed on the top of the suction cup assembly 5, so that the outer periphery of the leather cup 6 overlaps the top of the connecting portion 51, and then the connecting portion 51 is connected to the mounting ring 21, and the outer periphery of the leather cup 6 is press-connected between the top surface of the connecting portion 51 and the stepped surface, so that the leather cup 6 is sealingly connected between the suction cup assembly 5 and the bracket 2; the connecting portion 51 and the mounting ring 21 can be snap-connected or threadedly connected, or any detachable connection method that can sealingly connect the outer periphery of the leather cup 6 between the top surface of the connecting portion 51 and the stepped surface.

[0046] As Figure 2 shown, in one embodiment, the leather cup 6 is provided with a connecting column 9, and the connecting column 9 can be detachably connected to the output end of the motor 4.

[0047] The bottom of the connecting column 9 is connected to the middle of the leather cup 6 through a connecting plate, and the top of the connecting column 9 is threadedly connected or snap-connected to the motor 4, which is convenient for the installation and disassembly of the leather cup 6 and the motor 4.

[0048] As Figure 3 shown, in one embodiment, the top of the bracket 2 is provided with a fixing frame 22, and the motor 4 is connected to the fixing frame 22 through a mounting plate 41 provided thereon.

[0049] There are at least two fixing frames 22. An elastic pad is provided at the connection between the mounting plate 41 and the fixing frame 22, and then the mounting plate 41 and the fixing frame 22 are connected and fixed by screws. The elastic pad can prevent the mounting plate 41 from making hard contact with the fixing frame 22, thereby preventing vibration noise from being generated at the connection between the mounting plate 41 and the fixing frame 22 when the motor 4 is working.

[0050] Further, a support cylinder is also provided at the top of the bracket 2. The output end of the motor 4 is connected to the connecting column 9 of the leather cup 6 through a transmission mechanism. The transmission mechanism is a mechanism that converts the rotational motion of the output end of the motor 4 into a linear reciprocating motion (such as a nut and a lead screw). This is the prior art and will not be described in detail. A part of the transmission mechanism can pass through the support cylinder and then be connected to the connecting column 9; an elastic layer can be provided on the inner wall of the support cylinder so that the transmission mechanism is in elastic contact with the support cylinder, further reducing vibration noise.

[0051] As Figure 4 - Figure 6 shown, in one embodiment, a clamping joint 8 is provided at the output end of the motor 4. An arc-shaped recess 81 is provided on the side of the clamping joint 8. An installation hole 91 is provided on the connecting column 9. A limiting cylinder 11 is provided above the installation hole 91. A butting plate 12 is provided below the limiting cylinder 11. The butting plate 12 is connected to the bottom surface of the installation hole 91 through an elastic member 13. A through hole through which the clamping joint 8 can pass is provided on the butting plate 12. A pressing area 14 is formed between the bottom of the limiting cylinder 11 and the butting plate 12. A plurality of limiting blocks 15 capable of forming a ring are provided in the pressing area 14. The inner side surface of the limiting block 15 is in contact with the outer side surface of the clamping joint 8. The top end of the limiting block 15 is in contact with the arc-shaped recess 81 of the clamping joint 8.

[0052] Further, an external thread is provided on the outer side of the limiting cylinder 11, and an internal thread is provided on the upper part of the installation hole 91 of the connecting column 9, and the two are threadedly connected.

[0053] Further, the inner side surface of the limiting block 15 is a conical surface corresponding to the clamping joint 8, the upper outer side of the limiting block 15 is a conical surface corresponding to the bottom of the limiting cylinder 11, and the bottom end of the clamping joint 8 is arc-shaped.

[0054] Further, the clamping joint 8 includes a first section, a second section, and a third section arranged in sequence from top to bottom. An arc-shaped recess 81 is provided between the first section and the second section; the second section is conical, and the size of its upper end is smaller than the size of its lower end; the outer side surface of the third section is arc-shaped.

[0055] A transmission mechanism is provided at the output end of the motor 4. A clamping joint 8 is provided at the end of the transmission mechanism. The clamping joint 8 is limitedly connected to the connecting column 9 through the limiting cylinder 11, the butting plate 12, and the limiting block 15;

[0056] During installation, as Figure 4 shown, first place a plurality of limiting blocks 15 capable of forming a ring on the butting plate 12, threadedly connect the limiting cylinder 11 with the installation hole 91, and then insert the clamping joint 8 into the limiting cylinder 11;

[0057] As Figure 5 shown, when the clamping joint 8 continues to be inserted, the side surface of the third section of the clamping joint 8 will form a downward and outward acting force on the plurality of limiting blocks 15, the limiting blocks 15 will form a downward acting force on the butting plate 12, and the butting plate 12 will also receive an upward elastic acting force from the elastic member 13. When the clamping joint 8 passes through the butting plate 12 and the side surface of the second section of the clamping joint 8 contacts the limiting blocks 15, under the elastic action of the elastic member 13, the butting plate 12 will push the limiting blocks 15 upward, and the limiting blocks 15 will be pressed between the butting plate 12 and the limiting cylinder 11;

[0058] As Figure 6As shown, when the card connector 8 is further inserted into place, under the action of the elastic member 13, the limit block 15 is pressed tightly within the crimping area 14. The top of the limit block 15 is snap-fitted into the arc-shaped recess 81. The outer tapered surface of the limit block 15 abuts against the limit cylinder 11, the inner tapered surface abuts against the card connector 8, and the bottom surface abuts against the abutting plate 12;

[0059] Preferably, the upward elastic force formed by the elastic member 13 on the abutting plate 12 can be set to be always greater than the force when driving the leather cup 6 downward. Thus, when the motor 4 drives the leather cup 6 downward, the elastic force of the elastic member 13 can support the limit block 15, thereby supporting the card connector 8 and keeping the position of the card connector 8 unchanged. When the motor 4 drives the leather cup 6 upward, the second section of the card connector 8 is limited by the side surface of the limit block 15, thereby keeping the position of the card connector 8 unchanged;

[0060] The limit block 15 can be made of an elastic material, so that the snap-fitting part of the card connector 8 is in elastic contact, thereby further reducing the noise generated when the motor 4 operates.

[0061] In order to further ensure the snap-fitting stability of the position of the card connector 8, the upper part inside the limit cylinder 11 is a tapered hole, the top size of the tapered hole is larger than its bottom size, the outer side of the card connector 8 located at the upper part of the arc-shaped recess 81 is a tapered surface corresponding to the tapered hole, and an elastic layer 17 is provided on the side wall of the tapered hole.

[0062] When the motor 4 drives the leather cup 6 downward, the card connector 8 can be limited by the limit cylinder 11, and the two can be in elastic contact. While ensuring the snap-fitting position of the card connector 8, it reduces the vibration noise caused by the hard contact between the card connector 8 and the limit cylinder 11 when the motor 4 operates.

[0063] As Figure 7 and Figure 8 shown, further, a first tooth 151 is provided inside the limit block 15, and a second tooth 82 corresponding to the first tooth 151 is provided on the outer side of the card connector 8.

[0064] The first tooth 151 and the second tooth 82 are correspondingly arranged, which can further limit the position of the card connector 8 and ensure the stability of the snap-fitting position.

[0065] In one embodiment, a first sound collector for real-time collecting internal noise is provided in the installation cavity 3, and the first sound collector is electrically connected to the control board 7; a speaker electrically connected to the control board 7 is also provided in the installation cavity 3, and the speaker is used to output reverse cancellation sound waves according to the internal noise.

[0066] The number of the first microphones is at least set to two. The control board 7 can control the speaker to output reverse cancellation sound waves according to the internal noise, so as to reduce the probability that the noise generated when the motor 4 works is transmitted to the outside of the breast pump, further reduce the working noise of the breast pump, and ensure the use experience of the electric breast pump.

[0067] In one embodiment, a second microphone for collecting external noise in real time is provided on the outer side of the upper cover 1. The second microphone is electrically connected to the control board 7. The control board 7 can identify the current use environment according to the externally collected noise in real time, and determine whether to switch to the noise reduction mode according to the current use environment.

[0068] Among them, the external noise includes the external environmental noise and the working noise generated when the internal motor 4 works. The control board 7 can remove the working noise, extract the external environmental noise, and identify the current use environment by comparing the volume (or decibel) of the external environmental noise with the set volume (or set decibel);

[0069] If the volume (or decibel) of the external environmental noise is greater than the set volume (or set decibel), it indicates that the volume (or decibel) of the noise in the current use environment is higher than the maximum volume (or maximum decibel) of the working noise generated when the motor 4 works, then there is no need to switch to the noise reduction mode. If the volume (or decibel) of the external environmental noise is less than or equal to the set volume (or set decibel), it indicates that the volume (or decibel) of the noise in the current use environment is less than the maximum volume (or maximum decibel) of the working noise generated when the motor 4 works, then it is necessary to switch to the noise reduction mode;

[0070] The noise reduction mode is to output reverse cancellation sound waves through the speaker according to the internal noise to reduce the noise generated when the motor 4 works.

[0071] The specific working process of the noise reduction mode is as follows:

[0072] The internal noise is obtained in real time through the first microphone. Among them, the internal noise includes: the working noise generated when the motor 4 works and the external environmental noise;

[0073] The working sound wave is obtained according to the working noise, and noise reduction processing is performed on the working sound wave;

[0074] Specifically, the phase data of the corresponding sound wave is extracted from the working noise data as the working sound wave, and a reverse cancellation sound wave opposite to the working sound wave is output through a noise reduction algorithm (any noise reduction algorithm in the prior art can be used).

[0075] Obtaining the working sound wave according to the working noise and performing noise reduction processing on the working sound wave includes:

[0076] According to the current sucking frequency and the set working time of the motor 4, the predicted noise change data within the set working time is obtained;

[0077] Among them, the predicted noise change data is the noise change data corresponding to the operation of the motor 4 at the previous corresponding sucking frequency.

[0078] It should be noted that since the operating states of the motor 4 are different at different sucking frequencies, for example, there are differences in the frequencies of controlling the up-and-down reciprocating movement of the leather cup 6, therefore, the operating noises generated by the motor 4 are also different; and at the same sucking frequency, when the motor 4 controls the leather cup 6 to move upward and downward, the generated operating noises are also different and show a certain pattern. Therefore, the predicted noise change data corresponding to different sucking frequencies is stored in the control board 7, and the predicted noise change data is noise data that changes with time; since the noise change data generated when the motor 4 operates at a certain sucking frequency may be different during long-term use, it is more accurate to set the noise change data corresponding to the operation of the breast pump at the previous corresponding sucking frequency as the predicted noise change data.

[0079] Perform noise reduction processing on the working sound wave according to the working sound wave and the predicted noise change data.

[0080] Specifically, it includes:

[0081] Obtain a preset sound wave noise reduction algorithm, and obtain a preset coefficient according to the preset sound wave noise reduction algorithm and the working sound wave.

[0082] Among them, input the phase data corresponding to the obtained working sound wave into the preset sound wave noise reduction algorithm to obtain a working sound wave noise reduction algorithm; obtain a preset coefficient according to the working sound wave noise reduction algorithm. The preset coefficient is used to perform real-time noise reduction processing on the change of the working noise after the current moment based on the current working noise. And this working sound wave noise reduction algorithm is an algorithm for reducing the current working noise, so the preset coefficient can be set to 1.

[0083] Obtain the change amount of the preset coefficient according to the predicted noise change data and the preset coefficient, and perform noise reduction processing on the working sound wave through the working sound wave noise reduction algorithm according to the change amount.

[0084] Among them, adjust the preset coefficient correspondingly according to the difference between multiple predicted working noises in the predicted noise change data and the current working noise to obtain the change amount of the preset coefficient corresponding to each predicted working noise, and then adjust the working sound wave noise reduction algorithm according to the change amount of the preset coefficient, and perform real-time noise reduction processing on the working noise over time to improve the response speed and noise reduction effect of noise reduction.

[0085] The present invention also provides a control method for an electric breast pump, which is used to control the electric breast pump described in the present invention, including:

[0086] Set the current sucking frequency according to the usage requirements;

[0087] The user can select a suitable sucking frequency according to the usage requirements. For example, the user can choose from slow to fast to better promote milk extraction;

[0088] Drive the leather cup 6 to reciprocate through the motor 4 according to the current sucking frequency;

[0089] The selection of the sucking frequency can improve the usage comfort and promote milk extraction;

[0090] Obtain the external environmental noise in real time, identify the current usage environment, and determine whether to switch to the noise reduction mode according to the current usage environment;

[0091] When switching to the noise reduction mode, reduce the noise generated by the operation of the motor 4 in real time.

[0092] Among them, when switching to the noise reduction mode, reducing the noise generated by the operation of the motor 4 in real time includes:

[0093] Obtain the internal noise in real time through the first microphone. Among them, the internal noise includes: the working noise generated when the motor 4 operates and the external environmental noise;

[0094] Obtain the working sound wave according to the working noise and perform noise reduction processing on the working sound wave;

[0095] Specifically, extract the phase data of the corresponding sound wave from the working noise data as the working sound wave, and output the reverse cancellation sound wave opposite to the working sound wave through a noise reduction algorithm (any noise reduction algorithm in the existing technology can be used).

[0096] Obtain the working sound wave according to the working noise and perform noise reduction processing on the working sound wave, including:

[0097] Obtain the predicted noise change data within the set working time according to the current sucking frequency and the set working time of the motor 4;

[0098] Among them, the predicted noise change data is the noise change data corresponding to the operation of the motor 4 at the previous corresponding sucking frequency;

[0099] It should be noted that since the operating state of the motor 4 is different at different sucking frequencies, for example, the frequency of controlling the up-and-down reciprocating movement of the leather cup 6 is different, therefore, the operating noise generated by the motor 4 is also different; and at the same sucking frequency, when the motor 4 controls the leather cup 6 to move upward and downward, the operating noise generated is also different and shows a certain pattern. Therefore, prediction noise change data corresponding to different sucking frequencies is stored in the control board 7, and the prediction noise change data is noise data that changes with time; since the noise change data generated when the motor 4 operates at a certain sucking frequency may be different during long-term use, it is more accurate to set the noise change data corresponding to the last operation of the breast pump at the corresponding sucking frequency as the prediction noise change data.

[0100] Perform noise reduction processing on the working sound wave based on the working sound wave and the prediction noise change data.

[0101] Specifically, it includes:

[0102] Obtain a preset sound wave noise reduction algorithm, and obtain a preset coefficient based on the preset sound wave noise reduction algorithm and the working sound wave.

[0103] Among them, input the phase data corresponding to the obtained working sound wave into the preset sound wave noise reduction algorithm to obtain a working sound wave noise reduction algorithm; obtain a preset coefficient based on the working sound wave noise reduction algorithm. The preset coefficient is used to perform real-time noise reduction processing on the change of the working noise after the current moment based on the current working noise. And this working sound wave noise reduction algorithm is an algorithm for reducing the current working noise, so the preset coefficient can be set to 1.

[0104] Obtain the change amount of the preset coefficient according to the prediction noise change data and the preset coefficient, and perform noise reduction processing on the working sound wave through the working sound wave noise reduction algorithm according to the change amount.

[0105] Among them, adjust the preset coefficient correspondingly according to the difference between multiple predicted working noises in the prediction noise change data and the current working noise to obtain the change amount of the preset coefficient corresponding to each predicted working noise, and then adjust the working sound wave noise reduction algorithm according to the change amount of the preset coefficient to perform real-time noise reduction processing on the working noise over time, improving the response speed and noise reduction effect of noise reduction.

[0106] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0107] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the present invention, the present invention is not limited to the specific details and the examples shown and described herein.

Claims

1. An electric breast pump, characterized in that: include: An upper cover (1) and a bracket (2) are connected to each other, and a motor (4) is arranged in a mounting cavity (3) formed by the bracket (2) and the upper cover (1); a suction cup assembly (5) and a leather cup (6) are connected to the bracket (2), and an output end of the motor (4) is connected to the leather cup (6) for controlling the movement of the leather cup (6) so that negative pressure is formed in the suction cup assembly (5).

2. The electric breast pump according to claim 1, characterized in that: Also includes: A control board (7) and a battery (10) are arranged in the installation cavity (3), and the battery (10) is electrically connected to the control board (7) and the motor (4) respectively.

3. The electric breast pump according to claim 1, characterized in that: The leather cup (6) is sealingly connected between the suction cup assembly (5) and the bracket (2).

4. The electric breast pump according to claim 1, characterized in that: The leather cup (6) is provided with a connecting column (9), and the connecting column (9) is detachably connected to the output end of the motor (4).

5. The electric breast pump according to claim 1, characterized in that: A fixing frame (22) is provided on the top of the bracket (2), and the motor (4) is connected to the fixing frame (22) via a mounting plate (41) provided thereon.

6. The electric breast pump according to claim 4, characterized in that: The output end of the motor (4) is provided with a clamping joint (8), the side of the clamping joint (8) is provided with an arc-shaped recess (81), the connecting column (9) is provided with a mounting hole (91), a limiting cylinder (11) is provided above the mounting hole (91), an abutment plate (12) is provided below the limiting cylinder (11), the abutment plate (12) is connected to the bottom surface of the mounting hole (91) through an elastic member (13), the abutment plate (12) is provided with a through hole through which the clamping joint (8) can pass, a crimping area (14) is formed between the bottom of the limiting cylinder (11) and the abutment plate (12), a plurality of limiting blocks (15) that can form a ring are provided in the crimping area (14), the inner side surface of the limiting block (15) contacts the outer side surface of the clamping joint (8), and the top end of the limiting block (15) contacts the arc-shaped recess (81) of the clamping joint (8).

7. The electric breast pump according to claim 6, characterized in that: The inner side surface of the limit block (15) is a conical surface corresponding to the clamping joint (8), the upper outer side of the limit block (15) is a conical surface corresponding to the bottom of the limit tube (11), and the bottom end of the clamping joint (8) is arc-shaped.

8. The electric breast pump according to claim 2, characterized in that: A first microphone for collecting internal noise in real time is arranged in the installation cavity (3), and the first microphone is electrically connected to the control board (7); a speaker electrically connected to the control board (7) is also arranged in the installation cavity (3), and the speaker is used to reversely cancel sound waves according to the internal noise output.

9. The electric breast pump according to claim 8, characterized in that: A second microphone for collecting external noise in real time is provided on the outer side of the upper cover (1); the second microphone is electrically connected to the control board (7); the control board (7) identifies the current use environment based on the external noise collected in real time, and determines whether it is necessary to switch to the noise reduction mode based on the current use environment.

10. A control method for an electric breast pump, used for controlling the electric breast pump according to any one of claims 1 to 9, characterized in that: include: Set the current sucking frequency according to usage needs; According to the current sucking frequency, the leather cup (6) is driven to reciprocate by the motor (4); Acquire external environmental noise in real time, identify the current usage environment, and determine whether to switch to noise reduction mode based on the current usage environment; When the noise reduction mode is switched, the noise generated by the operation of the motor (4) is reduced in real time.

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