Driving assembly and milk sucking device

Abstract

The invention provides a driving assembly and a milk sucking device. The drive assembly includes a pump assembly and a cover. An air cavity is formed in the pump assembly, and the cover is connected with the pump assembly and comprises an air inlet structure and an air outlet structure. A gas distribution cavity is defined by the pump assembly and the cover, the gas inlet structure is communicated with the gas cavity, the gas outlet structure is communicated with the gas distribution cavity, and the gas distribution cavity is communicated with the gas cavity. The volume of the gas distribution cavity is greater than that of the gas outlet structure. By arranging the gas distribution cavity in the driving assembly, the speed of discharging the gas from the driving assembly can be reduced, the noise generated when the gas is discharged is reduced, and the user experience is improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of breast pumps, and in particular to a drive component and a breast pumping device. Background Technology

[0002] The breast pumps in the relevant technologies are noisy during use, which affects the user experience. Summary of the Invention

[0003] This disclosure provides a drive component and a milk suction device that reduces noise generated during gas expulsion.

[0004] According to a first aspect of this disclosure, a drive assembly is provided, including a pump assembly and a cover. A gas chamber is formed within the pump assembly, and the cover is connected to the pump assembly. The cover includes an inlet structure and an outlet structure. The pump assembly and the cover enclose a gas distribution chamber. The inlet structure communicates with the gas chamber to provide an inlet airflow path when the pump assembly draws in air. The outlet structure communicates with the gas distribution chamber, and the gas distribution chamber communicates with the gas chamber to provide a channel for gas to exit from the pump assembly. The volume of the gas distribution chamber is larger than the volume of the outlet structure.

[0005] According to the drive component disclosed herein, by providing a gas distribution chamber in the drive component, the speed at which gas is discharged from the drive component can be reduced, the noise generated during gas discharge can be decreased, and the user experience can be improved.

[0006] In some embodiments, the drive assembly further includes a gas guiding structure located within the gas distribution cavity. The gas guiding structure has a first through hole, through which the gas cavity and the gas distribution cavity communicate.

[0007] In some embodiments, the venting structure is formed on the wall of the cover and includes one or more second through holes.

[0008] In some embodiments, there are five first through holes, wherein the central first through hole is equidistant from the other three first through holes. There are also five second through holes, wherein the central second through hole is equidistant from the other three second through holes.

[0009] In some embodiments, the axial direction of the first through hole is perpendicular to the axial direction of the second through hole.

[0010] In some embodiments, five second through holes are formed on a first sidewall of the cover, and an air intake structure is formed on a second sidewall of the cover. The gas guiding structure includes a vertical section and an extension section, with the five first through holes located on the wall of the extension section away from the second through holes.

[0011] In some embodiments, there are two first through holes, arranged in a single row along a first direction. There are multiple second through holes, arranged in pairs on the sidewall of the cover. The line containing the axis of the second through hole is skew to the line containing the first direction. Alternatively, the line containing the axis of the second through hole intersects the line containing the first direction.

[0012] In some embodiments, a plurality of second through holes are arranged in pairs on the four side walls of the cover, an air intake structure is formed on one of the side walls of the cover, and a gas guiding structure includes a vertical section and an extension section, with the first through hole located on the vertical section.

[0013] In some embodiments, there are five first through holes, with the central first through hole being equidistant from the other first through holes. There are multiple second through holes, arranged in pairs on the sidewalls of the cover.

[0014] In some embodiments, the straight line containing the axis of the second through hole and the straight line containing the axis of the first through hole are skew lines.

[0015] In some embodiments, there are four pairs of second through holes, which are formed one-to-one on the four side walls of the cover, wherein the two pairs of second through holes that are arranged opposite each other are symmetrical.

[0016] In some embodiments, four pairs of second through holes are arranged in pairs on the four side walls of the cover, an air intake structure is formed on one of the side walls of the cover, and a gas guiding structure includes a vertical section and an extension section, with five first through holes located on the extension section.

[0017] According to a second aspect of this disclosure, a breast pumping device is provided, including a pumping assembly and a controller. The pumping assembly is used to conform to the breast to extract milk. The controller includes a drive assembly as described in any of the above embodiments, the air intake structure of which is connected to the pumping assembly to generate negative pressure in the pumping assembly for extracting milk.

[0018] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0019] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of the first embodiment of the driver component disclosed herein;

[0021] Figure 2 This is a cross-sectional structural diagram of the driving component according to an embodiment of the present disclosure;

[0022] Figure 3 This is a schematic diagram of the structure of the first embodiment of this disclosure;

[0023] Figure 4 This is a schematic diagram of the structure of a second embodiment of the driver component disclosed herein;

[0024] Figure 5 This is a structural schematic diagram of the second embodiment of the present disclosure;

[0025] Figure 6 This is a structural schematic diagram of the third embodiment of the driver component disclosed herein;

[0026] Figure 7 This is a structural schematic diagram of the third embodiment of this disclosure;

[0027] Figure 8 This is a schematic diagram of an embodiment of the breast pumping device disclosed herein.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100: Driver components;

[0030] 101: Pump assembly;

[0031] 1011: Air cavity;

[0032] 102: Cover;

[0033] 103: Gas distribution chamber;

[0034] 104: Intake structure;

[0035] 105: Exhaust structure;

[0036] 1051: Second through hole;

[0037] 106: Gas guiding structure;

[0038] 1061: First through hole;

[0039] 200: Breast pumping device;

[0040] 201: Breast pumping component;

[0041] 202: Controller. Detailed Implementation

[0042] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0043] like Figures 1 to 6 As shown, this embodiment of the present disclosure provides a drive assembly 100, including a pump assembly 101 and a cover 102. An air chamber 1011 is formed inside the pump assembly 101. The cover 102 is connected to the pump assembly 101 and includes an air inlet structure 104 and an air outlet structure 105. The pump assembly 101 and the cover 102 form a gas distribution chamber 103. The air inlet structure 104 communicates with the air chamber 1011 to provide an airflow path when the pump assembly 101 draws in air. The air outlet structure 105 communicates with the gas distribution chamber 103, and the gas distribution chamber 103 communicates with the air chamber 1011 to provide a channel for gas to be discharged from the pump assembly 101. The volume of the gas distribution chamber 103 is larger than the volume of the air outlet structure 105.

[0044] The drive assembly 100 can be understood as a component of the controller in the breast pumping device, which provides the power to suck milk. The pump assembly 101 is the mechanical part of the drive assembly 100 used to suck in and expel gas. The pump assembly 101 may have an air chamber 1011. The pump assembly 101 changes the air pressure in the air chamber 1011 through mechanical movement. The change in air pressure in the air chamber 1011 affects the air pressure of the breast pumping assembly that is attached to the breast, so that a breast pumping environment similar to that of an infant's mouth is formed in the breast pumping assembly.

[0045] Cover 102 is used to connect to pump assembly 101. After cover 102 is connected to pump assembly 101, the two form an enclosure as follows: Figure 2 The gas distribution chamber 103 is shown. Figure 2 A portion of the gas distribution chamber 103 disclosed herein is located within the cover 102, and another portion is located at the upper end of the pump assembly 101. In some embodiments, the gas distribution chamber 103 may also be entirely located within the cover 102. The gas distribution chamber 103 is used to communicate with the gas chamber 1011, allowing gas in the gas chamber 1011 to be discharged into the gas distribution chamber 103.

[0046] like Figures 1 to 6As shown, the cover 102 is provided with an air inlet structure 104 and an air outlet structure 105. One end of the air inlet structure 104 is connected to the milk pumping assembly, and the other end is connected to the air chamber 1011 of the pump assembly 101. When the pump assembly 101 draws in gas, the gas in the milk pumping assembly enters the air chamber 1011 through the air inlet structure 104. The air outlet structure 105 is connected to the gas distribution chamber 103 and the external environment. For example, the air outlet structure 105 can be formed on the wall of the cover 102 and includes one or more second through holes 1051 for connecting the gas distribution chamber 103 and the external environment. When the pump assembly 101 discharges gas, the gas in the air chamber 1011 passes through the gas distribution chamber 103 and is discharged to the external environment through the second through holes 1051.

[0047] like Figure 3 , Figure 5 , Figure 7 As shown, the gas chamber 1011 and the gas distribution chamber 103 can be connected through the gas guiding structure 106. For example, in some embodiments, the drive assembly 100 further includes the gas guiding structure 106, which is located within the gas distribution chamber 103. The gas guiding structure 106 has a first through hole 1061, through which the gas chamber 1011 and the gas distribution chamber 103 are connected. This allows gas to smoothly flow from the gas chamber 1011 into the gas distribution chamber 103.

[0048] The volume of the gas distribution chamber 103 can be set to be relatively large. For example, the remaining portion of the cover 102, excluding the inlet structure 104 and the outlet structure 105, can be set as part of the gas distribution chamber 103. Alternatively, the remaining portion of the top of the pump assembly 101, excluding the gas chamber 1011, can be set as part of the gas distribution chamber 103. In some embodiments, the volume of the gas distribution chamber 103 is larger than the volume of the outlet structure 105. Alternatively, the volume of the gas distribution chamber 103 can be larger than the amount of gas discharged when the pump assembly 101 depressurizes once. With this configuration, when the gas chamber 1011 depressurizes, the gas flow rate decreases after being discharged from the gas chamber 1011 to the larger volume of the gas distribution chamber 103. The noise generated when the gas with reduced flow rate is discharged to the external environment through the outlet structure 105 is reduced.

[0049] The gas guiding structure 106 may also have a channel for gas flow inside, through which a first through hole 1061 passes, so that the channel is connected to the gas distribution chamber 103 via the first through hole 1061. The gas in the gas chamber 1011 is first discharged into the channel, and then discharged into the gas distribution chamber 103 through the first through hole 1061. The gas flow channel can have a large volume; for example, the volume of the channel can be greater than the amount of gas discharged when the pump assembly 101 depressurizes once. With this configuration, when the gas chamber 1011 is depressurized, the gas flow rate will decrease after the gas is discharged from the gas chamber 1011 into the channel with a larger volume. The noise generated when the gas with a reduced flow rate is discharged into the gas distribution chamber 103 through the first through hole 1061 will be reduced.

[0050] According to embodiments of this disclosure, when a gas distribution chamber 103 is provided in the drive assembly 100, the gas in the gas chamber 1011 first enters the gas distribution chamber 103, thus buffering the gas entering the gas distribution chamber 103. Subsequently, the gas in the gas distribution chamber 103 enters the external environment through the gas outlet structure 105. This reduces the speed at which the gas is discharged from the drive assembly 100, decreases the noise generated during gas discharge, and improves the user experience. Furthermore, the volume of the gas distribution chamber 103 is larger than the volume of the gas outlet structure 105, which allows for a better buffering effect on the gas entering the gas distribution chamber 103, thereby further reducing the noise generated during gas discharge.

[0051] Based on the above embodiments, this disclosure also provides different embodiments of the drive component 100 and the cover 102.

[0052] One embodiment of this disclosure discloses a driving component 100, such as... Figure 1 and Figure 3 As shown, Figure 3 The cover 102 of the drive assembly 100 is disclosed. The cover 102 may have five first through holes 1061, wherein the central first through hole 1061 is spaced equidistant from each of the other first through holes 1061. The cover 102 may also have five second through holes 1051, wherein the central second through hole 1051 is spaced equidistant from each of the other second through holes 1051.

[0053] The arrangement of the five first through holes 1061 can be Figure 3 As shown, four first through holes 1061 form a square, and the fifth first through hole 1061 is located at the center of the square. This arrangement reduces the mutual interference of the gas discharged from the first through holes 1061, thus reducing the noise of gas discharge. The arrangement of the five second through holes 1051 can refer to the arrangement of the five first through holes 1061, and will not be described again.

[0054] The relative positions between the first through hole 1061 and the second through hole 1051 can be adjusted to maximize the path of gas flowing from the first through hole 1061 to the second through hole 1051. This allows the gas to enter the gas distribution chamber 103 from the first through hole 1061, reduce its flow velocity in the gas distribution chamber 103, and then exit through the second through hole 1051. Figure 3 As shown, the relative position between the first through hole 1061 and the second through hole 1051 can have the following characteristics: the axial direction of the first through hole 1061 is perpendicular to the axial direction of the second through hole 1051. Of course, the relative positional relationship between the first through hole 1061 and the second through hole 1051 can also be other ways, which are not limited here.

[0055] In one feasible embodiment, the axial direction of the first through hole 1061 is perpendicular to the axial direction of the second through hole 1051, specifically: the axis at the outlet of the first through hole 1061 is parallel to the height direction of the pump assembly 101, while the axis of the first through hole 1061 is perpendicular to the height direction of the pump assembly 101.

[0056] In some embodiments, such as Figure 3 As shown, five second through holes 1051 are formed on the first side wall of the cover 102, and an air intake structure 104 is formed on the second side wall of the cover 102. The gas guiding structure 106 includes a vertical section and an extension section. The five first through holes 1061 are located on the wall of the extension section away from the second through holes 1051. After the gas enters the air chamber 1011 through the air intake structure 104 on the second side wall, it is discharged sequentially through the five first through holes 1061 in the vertical section and the extension section, the gas distribution chamber 103, and the five second through holes 1051 on the first side wall.

[0057] The air intake structure 104 and the second through hole 1051 are respectively provided on two different side walls of the cover 102, which can reduce the volume of the cover 102.

[0058] like Figure 3 As shown, the structure arranged parallel to the partial air inlet structure 104 in the gas distribution cavity 103 is a vertical section, and the structure with the first through hole 1061 is an extension section. Placing the first through hole 1061 in the extension section increases the path length of the gas flow channel in the gas guiding structure 106, increases the channel's capacity, and reduces the gas flow velocity when gas enters the channel from the gas cavity 1011. The position of the first through hole 1061 in the extension section can be adjusted. For example, placing the first through hole 1061 on the wall of the extension section away from the second through hole 1051 (e.g., the wall opposite to the gas cavity 1011 in the figure) allows gas to exit through the first through hole 1061 and enter the gas distribution cavity 103, and then exit from the gas distribution cavity 103 through the second through hole 1051.

[0059] In other embodiments, a portion of the air intake structure 104 may protrude from the second sidewall of the cover 102 to facilitate connection with the milk pumping assembly. Another portion of the air intake structure 104 may be arranged side-by-side with the vertical section to facilitate communication with the air chamber 1011.

[0060] Another embodiment of the present disclosure discloses a driving component 100, such as... Figure 4 and Figure 5 As shown, Figure 5 The cover 102 of the drive assembly 100 is disclosed. The cover 102 has two first through holes 1061, arranged in a single row along a first direction. There are multiple second through holes 1051, arranged in pairs on the sidewall of the cover 102. The line containing the axis of the second through hole 1051 is either skew to the line containing the first direction, or the line containing the axis of the second through hole 1051 intersects the line containing the first direction.

[0061] The first direction can be understood as... Figure 4 The height direction within. The shape of the second through hole 1051 can be... Figure 4 , Figure 5 The notch shape shown can also be the shape of the through hole in the above embodiment. By using the second through holes 1051 arranged in pairs on the side wall of the cover 102, the gas pressure in the gas distribution chamber 103 can be quickly reduced, the speed at which gas is discharged from the gas distribution chamber 103 can be reduced, thereby better reducing the noise generated when the gas is discharged.

[0062] The number of multiple second through holes 1051 and their positional relationship can be adjusted according to the number of side walls of the cover 102, for example... Figure 5 As shown, there are four pairs of second through holes 1051, which are formed one-to-one on the four side walls of the cover 102. In one embodiment, the two pairs of second through holes 1051 that are opposite to each other can be arranged symmetrically.

[0063] In some implementations, such as Figure 5 As shown, multiple second through holes 1051 are arranged in pairs on the four side walls of the cover 102. An air intake structure 104 is formed on one of the side walls of the cover 102. The gas guiding structure 106 includes a vertical section. A first through hole 1061 is located on the vertical section. Gas enters the air chamber 1011 through the air intake structure 104 on one of the side walls of the cover 102, and is discharged sequentially through the two first through holes 1061 in the vertical section, the gas distribution chamber 103, and the two second through holes 1051 arranged in pairs on the four side walls of the cover 102.

[0064] The relative position of the vertical section and the air intake structure 104 can be adjusted. For example, in some embodiments, a portion of the air intake structure 104 protrudes from the second sidewall of the cover 102 to facilitate connection with the milk pumping assembly. Another portion of the air intake structure 104 can be arranged side-by-side with the vertical section. This arrangement facilitates communication between the air chamber 1011 and the gas distribution chamber 103, and also increases the volume of the gas distribution chamber 103 within the cover 102, further improving the noise reduction effect.

[0065] Another embodiment of this disclosure discloses a driving component 100, such as... Figure 6 and Figure 7 As shown, Figure 7 The cover 102 of the drive assembly 100 is disclosed. The cover 102 has five first through holes 1061, wherein the central first through hole 1061 is spaced equidistant from each of the other first through holes 1061. There are multiple second through holes 1051, and the multiple second through holes 1051 are arranged in pairs on the side wall of the cover 102.

[0066] The arrangement of the five first through holes 1061 can be Figure 7 As shown, the four first through holes 1061 form a square, and the fifth first through hole 1061 is located at the center of the square. This arrangement can reduce the mutual interference of gas discharged between adjacent first through holes 1061, and reduce the noise of gas discharge. The shape of the second through hole 1051 can be... Figure 6 , Figure 7 The notch shape shown can also be the shape of the through hole in the above embodiment. By means of the second through holes 1051 arranged in pairs on the side wall of the cover 102, the gas pressure in the gas distribution chamber 103 can be quickly reduced, and the flow rate of gas discharged from the gas distribution chamber 103 can be reduced.

[0067] The relative positions between the first through hole 1061 and the second through hole 1051 can be adjusted, for example... Figure 7 As shown, the straight line containing the axis of the second through hole 1051 and the straight line containing the axis of the first through hole 1061 are skew lines, or the straight line containing the axis of the second through hole 1051 intersects the straight line containing the axis of the first through hole 1061. This arrangement allows gas to enter the gas distribution chamber 103 after exiting through the first through hole 1061, avoiding direct exit through the second through hole 1051.

[0068] The number of multiple second through holes 1051 and their positional relationship can be adjusted according to the number of sidewalls, for example... Figure 7 As shown, there are four pairs of second through holes 1051, which are formed one-to-one on the four side walls of the cover 102, with the two pairs of second through holes 1051 arranged opposite each other being symmetrically arranged.

[0069] In some embodiments, such as Figure 7 As shown, four pairs of second through holes 1051 are arranged in pairs on the four side walls of the cover 102. An air intake structure 104 is formed on one of the side walls of the cover 102. The gas guiding structure 106 includes a vertical section and an extension section. Five first through holes 1061 are located on the extension section. Gas enters the air chamber 1011 through the air intake structure 104 on one of the side walls of the cover 102, and is discharged sequentially through the five first through holes 1061 in the vertical section and the extension section, the gas distribution chamber 103, and the pairs of second through holes 1051 arranged on the four side walls of the cover 102.

[0070] like Figure 7 As shown, a portion of the air intake structure 104 can protrude from the second sidewall of the cover 102 to facilitate connection with the milk pumping assembly. The structure arranged parallel to another portion of the air intake structure 104 is a vertical section; this arrangement reduces the volume of the cover 102 and facilitates communication with the air chamber 1011. The structure providing the first through hole 1061 is an extension section. Providing the first through hole 1061 in the extension section increases the path length of the gas flow channel in the gas guiding structure 106, increases the channel's capacity, and reduces the gas flow velocity as it enters the channel from the air chamber 1011. Figure 7 The first through hole 1061 is located on the bottom wall of the extension section (i.e., on the side opposite to the pump assembly 101), which allows the gas to be discharged from the first through hole 1061 and then enter the gas distribution chamber 103, and then be discharged from the gas distribution chamber 103 through the second through hole 1051.

[0071] like Figure 8 As shown, this disclosure also provides a breast pumping device 200, including a breast pumping assembly 201 and a controller 202. The breast pumping assembly 201 is used to conform to the breast to extract milk. The controller 202 includes a drive assembly 100 as described in any of the above embodiments, and the air intake structure 104 of the drive assembly 100 is connected to the breast pumping assembly 201 to generate negative pressure in the breast pumping assembly 201 for extracting milk.

[0072] The milk pumping assembly 201 and controller 202 can refer to the milk pumping assembly and controller in any of the above embodiments, and will not be described again. The drive assembly 100 and its configured cover 102 can refer to the above three different specifications of drive assembly 100 and its configured cover 102, or other drive assembly 100 or cover 102 configured with gas distribution chamber 103 and capable of realizing the corresponding known functions and their alternative solutions.

[0073] In the description of this specification, it should be understood that, unless otherwise expressly specified and limited, the terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0075] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0076] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this disclosure. To simplify the disclosure, specific examples of components and arrangements have been described above. Of course, these are merely examples and are not intended to limit the scope of this disclosure. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0078] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A driving component, characterized in that, include: The pump assembly has an internal air chamber. A cover, connected to the pump assembly, the cover including an air inlet structure and an air outlet structure; The pump assembly and the cover together form a gas distribution chamber; The air intake structure communicates with the air chamber to provide an air intake path when the pump assembly draws air; and The gas outlet structure is connected to the gas distribution chamber, and the gas distribution chamber is connected to the gas chamber to provide a channel for gas to be discharged from the pump assembly; wherein the volume of the gas distribution chamber is larger than the volume of the gas outlet structure.

2. The driving component according to claim 1, characterized in that, It also includes a gas guiding structure, which is located within the gas distribution cavity; The gas guiding structure is provided with a first through hole, and the gas cavity and the gas distribution cavity are connected through the first through hole.

3. The driving component according to claim 2, characterized in that, The venting structure is formed on the wall of the cover and includes one or more second through holes.

4. The driving component according to claim 3, characterized in that, The number of first through holes is five, wherein the first through hole located in the center is spaced at the same distance from each of the other first through holes; There are five second through holes, with the central second through hole being spaced equidistant from each of the other second through holes.

5. The driving component according to claim 4, characterized in that, The axial direction of the first through hole is perpendicular to the axial direction of the second through hole.

6. The driving component according to claim 5, characterized in that, Five second through holes are formed on the first sidewall of the cover, and the air intake structure is formed on the second sidewall of the cover; The gas guiding structure includes a vertical section and an extension section, with five first through holes located on the wall of the extension section away from the second through holes.

7. The driving component according to claim 3, characterized in that, There are two first through holes, and the two first through holes are arranged in a single row along the first direction; The number of second through holes is multiple, and the multiple second through holes are arranged in pairs on the side wall of the cover; Wherein, the straight line containing the axis of the second through hole and the straight line containing the first direction are skew lines; or, The straight line containing the axis of the second through hole intersects the straight line containing the first direction.

8. The driving component according to claim 7, characterized in that, Multiple second through holes are arranged in pairs on the four side walls of the cover, the air intake structure is formed on one of the side walls of the cover, the gas guiding structure includes a vertical section, and the first through hole is located on the vertical section.

9. The driving component according to claim 3, characterized in that, The number of first through holes is five, wherein the first through hole located in the center is spaced at the same distance from each of the other first through holes; There are multiple second through holes, and the multiple second through holes are arranged in pairs on the side wall of the cover.

10. The driving component according to claim 9, characterized in that, The straight line containing the axis of the second through hole and the straight line containing the axis of the first through hole are skew lines.

11. The driving component according to claim 9, characterized in that, The second through hole is in four pairs, and is formed one-to-one on the four side walls of the cover, wherein the two pairs of second through holes that are arranged opposite each other are symmetrical.

12. The driving component according to claim 11, characterized in that, Four pairs of second through holes are arranged in pairs on the four side walls of the cover, the air intake structure is formed on one of the side walls of the cover, the gas guiding structure includes a vertical section and an extension section, and five first through holes are located on the extension section.

13. A breast pumping device, characterized in that, include: Breast pump assembly, designed to fit the breast to draw out milk; and A controller comprising a drive assembly according to any one of claims 1 to 12, the air intake structure of the drive assembly being connected to the milk suction assembly to generate negative pressure in the milk suction assembly for sucking milk.

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