Breast pump, milk pumping member of breast pump, and method for manufacturing milk pumping member of breast pump

Abstract

The present application discloses a milk pumping member of a breast pump and a method for manufacturing the milk pumping member of a breast pump. The milk pumping member of a breast pump comprises a soft silicone cover body and a heating member; the soft silicone cover body comprises a fluid channel; the heating member comprises a body portion and a connecting portion extending from the body portion; the outer wall of the soft silicone cover body away from the fluid channel is provided with a mounting hole; the body portion is arranged in the soft silicone cover body; the body portion is a platform; the body portion is matched with the soft silicone cover body; the connecting portion is arranged in the mounting hole; an electrical connection socket is exposed out of the soft silicone cover body by means of the mounting hole, so that the breast pump can be externally connected to a power supply, and the breast pump is continuously heated or kept warm by means of the heating member. The soft silicone cover body is integrally formed with the heating member in an injection molding, or hydraulic or silicone injection molding process, so that the heating member is more closely fitted to the entire soft silicone cover body, and heat of the heating member can be transferred to the position where the soft silicone cover body is in contact with the mother's body with small loss.

Description

Breast pump, breast pump part and manufacturing method of breast pump part

[0001] This application claims priority to Chinese patent application number 2023219942150 filed on July 26, 2023, entitled “A Breast Pumping Device” and Chinese patent application number 2023109549761 filed on July 28, 2023, entitled “Breast Pumping Component of Breast Pump and Method for Manufacturing Breast Pumping Component of Breast Pump”.

Technical field

[0002] The present application relates to the technical field of maternal and infant products, and in particular to a breast pump, a milk suction piece of a breast pump, and a method for manufacturing the milk suction piece of a breast pump. [Background Technology]

[0003] Currently, the suction parts of breast pumps on the market are generally made of pure soft rubber, hard rubber, or a combination of soft and hard rubber, and have no other functions besides sealing and sucking milk. As people's demand for more functions increases, breast pumps are no longer required to only suck milk, but also to add a series of functions such as hot compresses, cold compresses, and massage. These functions are basically operated separately from the breast pump.

[0004] However, with current existing technologies, multiple instruments are often required to be used in combination to achieve the desired effect, which makes the manufacturing structure of the breast pump more complex and heavier, and also brings a greater burden to the user during use.

[0005] [Summary of the invention]

[0006] The present application provides a breast pump, a breast pump part of the breast pump, and a method for manufacturing the breast pump part of the breast pump, so as to solve the problem that the breast pumps in the prior art cannot meet the heating requirements.

[0007] One aspect of the present application provides a milk suction part of a breast pump, comprising a soft rubber cover body, wherein the soft rubber cover body includes a fluid channel. A heating element, wherein the heating element includes a main body and a connecting part formed by extending from the main body, and the connecting part is provided with an electrical plug-in interface. Particularly, a mounting hole is provided on the outer wall of the soft rubber cover body away from the fluid channel. The main body is arranged in the soft rubber cover body, the main body is a table, and the main body is in a trumpet shape that matches the soft rubber cover body. The connecting part is arranged in the mounting hole, and the electrical plug-in interface is exposed to the soft rubber cover body through the mounting hole. The soft rubber cover body is integrally formed with the heating element during the injection molding, oil pressure or silicone injection molding process.

[0008] Specifically, the main body is formed by connecting the sides of a curved heating plate end to end. The main body and the connecting part are both provided with through holes, and the through holes are filled with injection molding, oil pressure or silicone injection sol; a fixing plate is provided at the interface of the heating plate.

[0009] Specifically, the main body is formed by pressing an annular heating plate. The heating plate and the connecting portion are both provided with through holes, and the through holes are filled with injection molding, oil pressure or silicone injection sol.

[0010] Specifically, the electrical interface includes a socket, which is arranged in the mounting hole. The connecting portion is provided with contacts and studs. The socket is sleeved on the studs, and the contacts are accommodated in the socket.

[0011] Specifically, the power interface further includes a plug cover plate, which covers the socket and is provided with a spring pin, the socket is accommodated in the mounting hole, the spring pin passes through the mounting hole, and the socket abuts against the contact.

[0012] Specifically, the soft rubber cover body includes a first sub-cover body and a second sub-cover body, the first sub-cover body and the second sub-cover body are fixedly connected, and the main body is arranged between the first sub-cover body and the second sub-cover body.

[0013] Another aspect of the present application provides a method for manufacturing a breast pump suction piece, comprising forming a first sub-shell and a second sub-shell by injection molding, hydraulic pressure molding, or silicone injection molding. After mold opening, the first sub-shell is retained within the first sub-shell mold, and the second sub-shell is retained within the second sub-shell mold. A heating element is obtained and placed at a predetermined position within the first sub-shell to obtain a pre-molding mold. The pre-molding mold and the second sub-shell mold are then molded together. The breast pump suction piece is then demolded to obtain the breast pump suction piece.

[0014] According to a third aspect of the present application, a breast pump is provided, comprising a milk suction piece, a main unit, and a milk silo assembly. The milk suction piece comprises a soft rubber cover body, a heater, and a plug-in cover. The heater is disposed within the soft rubber cover body. The plug-in cover is electrically connected to the heater and extends through the soft rubber cover body. The main unit comprises an electrical connection assembly, which is electrically connected to the plug-in cover to supply power to the heater. The main unit is provided with a first snap-fit ​​portion on the periphery of the electrical connection assembly. The milk silo assembly is disposed between the milk suction piece and the main unit. The milk silo assembly is provided with a connection hole corresponding to the plug-in cover, and the plug-in cover passes through the connection hole to connect to the electrical connection assembly. The milk silo assembly is provided with a second snap-fit ​​portion corresponding to the first snap-fit ​​portion on the periphery of the connection hole, and the second snap-fit ​​portion is snap-fitted to the first snap-fit ​​portion.

[0015] Compared to the prior art, the breast pump of the present application includes a breast pump body and a heater. The breast pump body includes a fluid channel, and the heater includes a main body portion and a connecting portion extending from the main body portion. The connecting portion is provided with an electrical interface for electrically heating the breast pump body with an external power source. The outer wall of the breast pump body, away from the fluid channel, is provided with a mounting hole. The main body portion is disposed within the breast pump body. The main body portion is a platform and is adapted to the breast pump body, ensuring that the heater can fully fit within the breast pump body. This enhances the heating capacity of the entire breast pump body while ensuring that heat can be promptly fed back to the mother. The connecting portion is disposed within the mounting hole, and the electrical interface is exposed to the breast pump body through the mounting hole, allowing the breast pump to be connected to an external power source and continuously heated or kept warm by the heater. The breast pump body is integrally formed with the heater during the injection molding, oil pressure molding, or silicone injection molding process, ensuring that the heater fits more closely to the entire breast pump body and that heat from the heater can be transferred to the location where the breast pump body fits with the mother with minimal loss.

Brief Description of the Drawings

[0016] FIG1 is a schematic structural diagram of an embodiment of a breast pump component of the present application, wherein the breast pump component includes a heating element;

[0017] FIG2 is a partial cross-sectional structural diagram of a milk suction component of the breast pump of FIG1 ;

[0018] FIG3 is an enlarged structural diagram of circle A1 of the breast pump of the breast pump in FIG2 ;

[0019] FIG4 is a schematic structural diagram of the heating element in FIG1 ;

[0020] FIG5 is a flow chart of an embodiment of a method for manufacturing a breast pump component of a breast pump provided by the present application, comprising steps S1, S2, S3, S4, and S5;

[0021] FIG6 is a schematic diagram of a flow chart of an embodiment of step S1 in FIG5 ;

[0022] FIG7 is a schematic flow chart of another embodiment of step S1 in FIG5 ;

[0023] FIG8 is a schematic diagram of a flow chart of an embodiment of step S2 in FIG5 ;

[0024] FIG9 is a schematic flow chart of another embodiment of step S2 in FIG5 ;

[0025] FIG10 is a schematic diagram of a flow chart of an embodiment of step S3 in FIG5 ;

[0026] FIG11 is a schematic diagram of a flow chart of an embodiment of step S4 in FIG5 ;

[0027] FIG12 is a schematic diagram of a flow chart of an embodiment of step S5 in FIG5 ;

[0028] FIG13 is a schematic diagram of the exploded structure of an embodiment of the breast pump of the present application;

[0029] FIG14 is a schematic structural diagram of the breast pump shown in FIG1 ;

[0030] FIG15 is a schematic structural diagram of part B shown in FIG1 ;

[0031] FIG16 is a schematic structural diagram of the main unit shown in FIG1 facing the breast pump;

[0032] FIG17 is a schematic structural diagram of part A shown in FIG1 ;

[0033] FIG18 is a schematic cross-sectional view of the breast pump shown in FIG1 ;

[0034] FIG19 is a schematic diagram of the three-dimensional structure of the plug cover shown in FIG1;

[0035] FIG20 is a schematic structural diagram of portion D shown in FIG18 ;

[0036] FIG21 is a schematic structural diagram of portion C shown in FIG18 ;

[0037] FIG22 is another schematic cross-sectional view of the breast pump shown in FIG1 . [Specific implementation method]

[0038] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0040] The terms "system," "unit," and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship. Furthermore, "multiple" in this context means two or more than two.

[0041] In one aspect of the present application, a breast pump assembly is provided. Please refer to FIG1 , which is a schematic structural diagram of an embodiment of the breast pump assembly provided by the present application. The breast pump assembly includes a soft rubber cover body 110 and a heating element 120. The soft rubber cover body 110 includes a fluid channel 111. The soft rubber cover body 110 has a smoother texture, good hydrophilicity, and is more easily adhered to the skin. The heating element 120 includes a main body a21 and a connecting portion a22 extending from the main body a21. The connecting portion a22 is provided with an electrical interface a221 for electrically heating the breast pump assembly via an external power source (not shown). The outer wall of the soft rubber cover body 110, away from the fluid channel 111, is provided with a mounting hole a13. The main body a21 is disposed within the soft rubber cover body 110. The main body a21 is a platform and is adapted to the soft rubber cover body 110, i.e., a 3D conical structure. This ensures that the heating element 120 can completely fit within the soft rubber cover body 110, enhancing the heating capacity of the entire breast pump while ensuring that heat can be promptly fed back to the mother body. It is understood that the main body a21 can also be configured as a prism. As long as the main body a21 can adapt to the soft rubber cover body 110 and achieve a fit between the heating element 120 and the soft rubber cover body 110, without affecting the overall heating effect of the breast pump, the main body a21 can be configured into a desired shape according to the actual needs of the breast pump. The connection portion a22 is disposed within the mounting hole a13, and the power connector a221 is exposed to the soft rubber cover body 110 through the mounting hole a13. This allows the breast pump's suction element to be connected to an external power source and continuously heated or kept warm by the heater 120. The heater 120 is integrally formed with the soft rubber cover body 110 during the injection molding, hydraulic, or silicone injection molding process, ensuring a more consistent fit between the heater 120 and the entire soft rubber cover body 110. Heat from the heater 120 can be transferred to the point where the soft rubber cover body 110 meets the breast tissue with minimal heat loss.

[0042] Further, please refer to Figure 4, which is a schematic diagram of the structure of the heating element described in Figure 1. In some embodiments, the main body a21 is formed by connecting the side edges of a curved heating plate (not shown) end to end. In order to ensure its stable fixation, through holes a210 are provided on the main body a21 and the connecting portion a22. When the soft rubber cover body 110 and the heating element 120 are jointly injection molded, hydraulically or silicone injection molded, the through holes a210 are filled with injection molding, hydraulically or silicone injection sol, further ensuring the tightness of the fixation between the soft rubber cover body 110 and the heating element 120. A fixing plate a20 is provided at the interface of the heating plate to fix the shape of the heating element 120, ensuring the stability of the three-dimensional structure of the heating element 120 while also ensuring the use effect of the breast pump part of the breast pump.

[0043] In other embodiments, the main body a21 is formed by pressing an annular heating plate, and the conical structure is directly pressed and formed. The conical structure has the same curvature as the soft rubber cover body 110. In this case, there is no need to process the heating element 120 separately. The heating element 120 is directly connected to the soft rubber cover body 110, and the breast pump part of the breast pump can be formed by tightly connecting them through injection molding, oil pressure or silicone injection.

[0044] Continuing with Figure 1 , in some embodiments, the soft rubber cover body 110 includes a first sub-cover body 117 and a second sub-cover body 116, which are fixedly connected via injection molding, hydraulic pressure, or silicone injection. This allows the heater 120 to be housed within the soft rubber cover body 110 without affecting the overall airtightness of the soft rubber cover body 110. The main body a21 is disposed between the first sub-cover body 117 and the second sub-cover body 116, enabling uniform heating of the soft rubber cover body 110 and further enhancing the heating experience of the breast pump's suction element.

[0045] Specifically, to ensure that the breast pump reaches the appropriate temperature during heating and can be powered off or kept warm in a timely manner, referring to Figures 1 and 4, in some embodiments, either the soft rubber cover body 110 or the main body a21 is provided with a temperature sensor a15 for detecting the temperature of the entire heating element 120, ensuring effective heating while preventing overheating. A fixing member (not shown) is provided at the end of the temperature sensor a15 away from the heating element 120 to ensure that the temperature sensor a15 remains stably fixed in its original position when the heating element 120 is bent.

[0046] Furthermore, a protective ring (not shown) is provided at the other end of the temperature sensor a15. The protective ring and the fixing part work together at both ends of the temperature sensor a15 to further stabilize the position of the temperature sensor a15, ensure the stability of the heating temperature of the breast pump's suction part, and avoid burns to the mother during use due to excessive temperature.

[0047] Please refer to Figures 2 and 3 . Figure 2 is a partial cross-sectional structural diagram of the breast pump of the breast pump of Figure 1 ; Figure 3 is an enlarged structural diagram of circle A1 in the breast pump of the breast pump of Figure 2 . In some embodiments, the power interface a221 includes a socket 118 disposed within the mounting hole a13 to connect the heater 120 through the soft rubber cover body 110 to an external power source for heating. The connecting portion a22 is provided with a contact a220 and a stud a222. The stud a222 is used to accommodate a fixing screw. The socket 118 is mounted on the stud a222. The contact a220 is accommodated within the socket 118 to prevent the contact a220 from contacting the injection molding, oil pressure, or silicone injection sol during injection molding, oil pressure, or silicone injection, thereby affecting its sensitivity and, in turn, the degree of heating of the breast pump. The contacts a220 are respectively the positive and negative electrodes of the heating element 120 and the positive and negative electrodes of the temperature sensor a15.

[0048] It can be understood that a glue groove (not shown) is provided at the contact position between the power plug interface a221 and the soft rubber cover body 110. When the soft rubber cover body 110 is injection molded, oil pressure or silicone injection, the glue groove on the power plug interface a221 also contains injection molding, oil pressure or silicone injection sol, thereby increasing the contact area between the soft rubber cover body 110 and the power plug interface a221, and further ensuring the structural stability of the milk suction part of the entire breast pump.

[0049] Furthermore, the power interface a221 includes a plug cover 130, which serves as a medium for connecting to an external power source. The plug cover 130 covers the socket 118 and is provided with a fixing hole. A fixing screw passes through the fixing hole and then through the stud a222 to secure the plug cover 130 to the power interface a221. This prevents disconnection or short circuits caused by an unstable connection between the power interface a221 and the plug cover 130, further preventing dangerous situations when connecting to an external power source through the plug cover 130. A spring pin 22120 is also provided on the plug-in cover 130, and the plug-in seat 118 is accommodated in the mounting hole a13. The spring pin 22120 passes through the mounting hole a13 and the plug-in seat 118 and abuts against the contact a220, thereby realizing the connection between the plug-in cover 130 and the heating element 120, ensuring the stability of the current and heating conditions of the heating element 120 when an external power supply is connected, further enhancing the user experience of the heating mode of the breast pump's breast pumping part.

[0050] It can be understood that a contact reinforcement plate (not shown) is also provided around contact a220. When the spring needle 22120 is fixed to the contact a220, it abuts against the contact reinforcement plate to prevent the contact area between the contact a220 and the spring needle 22120 from being too small. When the breast pump shakes or moves, the spring needle 22120 is separated from the contact position of the contact a220, resulting in poor contact.

[0051] The plug cover 130 and the socket 118 can also be fixed by a series of methods such as gluing, snapping, ultrasound, etc. A sealing member a23 can also be provided at the connection between the plug cover 130 and the socket 118 to prevent water from entering the interior of the breast pump through the connection gap when the breast pump is cleaned, thereby affecting its normal operation.

[0052] Another aspect of the present application provides a method for manufacturing a breast pump sucking member. Referring to FIG5 , FIG5 is a flow chart illustrating an embodiment of a method for manufacturing a breast pump sucking member provided by the present application. The manufacturing method specifically includes:

[0053] Step S1: The first sub-cover 117 is formed by injection molding, hydraulic pressure molding, or silicone injection molding. After the mold is opened, the first sub-cover 117 remains in the first sub-cover mold. When the entire breast pump suction part is formed by injection molding, hydraulic pressure molding, or silicone injection molding, a sol is injected into the first sub-cover mold and the mold is processed. When the first sub-cover 117 reaches the desired state, the first sub-cover 117 is demolded and ready for use.

[0054] The first sub-cover mold can be divided into an upper operating position and a lower operating position. When the first sub-cover mold is subjected to injection molding, hydraulic pressure molding, or silicone injection, the upper and lower operating positions are combined and injection molding, hydraulic pressure molding, or silicone injection molding is performed therein. When the first sub-cover 117 reaches the desired state, the first sub-cover 117 is demolded from the upper operating position, and a portion of the first sub-cover 117 remains in the lower operating position for standby use.

[0055] Step S2: Obtain the heater 120 and place it in a predetermined position on the first sub-shell 117 to form a pre-molded mold. Placing the pre-molded heater 120 in the predetermined position on the first sub-shell 117 facilitates its alignment with the soft rubber shell body 110, ensuring more uniform heating of the breast pump's suction element and enhancing user experience. By placing the heater 120 on the first sub-shell 117, the heater 120 is also housed in the lower operating position of the first sub-shell mold, forming a pre-molded mold.

[0056] Step S3: The second sub-cover 116 is formed by injection molding, hydraulic pressure molding, or silicone injection molding. After the mold is opened, the second sub-cover 116 is retained in the second sub-cover mold. While the entire breast pump suction part is being formed by injection molding, hydraulic pressure molding, or silicone injection molding, a sol is injected into the second sub-cover mold and the mold is processed. When the second sub-cover 116 reaches the desired state, it is demolded and ready for use.

[0057] The second sub-cover mold can also be divided into an upper operating position and a lower operating position. When the second sub-cover mold is subjected to injection molding, hydraulic pressure molding, or silicone injection, the upper and lower operating positions are combined and the injection molding, hydraulic pressure molding, or silicone injection molding is performed therein. When the second sub-cover 116 reaches the desired state, the second sub-cover 116 is demolded from the lower operating position, and a portion of the second sub-cover 116 remains in the upper operating position for standby use.

[0058] Furthermore, in some implementation scenarios, while the first sub-cover 117 is being injection molded, hydraulically or silicone-injected, the second sub-cover 116 is also being injection molded, hydraulically or silicone-injected, thereby reducing processing time and cost.

[0059] It is understandable that there is no particular order for the above steps S1 and S3 . The first sub-cover 117 and the second sub-cover 116 can be formed simultaneously, or step S1 or step S3 can be performed first as needed.

[0060] Step S4: Clamping the pre-closing mold and the second sub-cover mold. In some implementations, after the first sub-cover 117 and the second sub-cover 116 are formed, the lower operating position of the first sub-cover mold and the upper operating position of the second sub-cover mold are clamped, and the process continues until the breast pump structure is fully formed, cooled, and demolded.

[0061] Step S5: demoulding to obtain the breast pumping part of the breast pump. The breast pumping part of the breast pump after demoulding is made of soft rubber material with a heater, which needs to be assembled with other structures of the breast pump to form a complete breast pump.

[0062] In order to ensure that the heating element 120 does not shift when placed at the preset position of the first sub-cover 117, it is necessary to keep the first sub-cover 117 in a semi-cooked state when performing injection molding, hydraulic molding or silicone injection molding. Please refer to Figure 6, which is a flow chart of an embodiment of step S1 described in Figure 5. The above-mentioned step S1 specifically includes:

[0063] Step S11: Injecting a plastic injection, hydraulic, or silicone injection sol into the first sub-cover mold. In some specific implementations, a plastic injection, hydraulic, or silicone injection sol made of a soft rubber material is injected into the first sub-cover mold. The soft rubber material has a certain elasticity, better fluidity, and better skin fit.

[0064] Step S12: Obtain socket 1181 and place it in a pre-set position. In some implementations, before forming the first sub-enclosure 117, a connection point between the heating element 120 and the external power supply, namely socket 118, is reserved. The mold for socket 118 is placed in a suitable position within the mold for the first sub-enclosure and secured.

[0065] In addition, in other implementation scenarios, the first sub-cover body mold can also be directly set to have the shape of the socket 118 mold, and the socket 118 and the first sub-cover body 117 can be integrally molded by injection molding, oil pressure or silicone injection of a separate first sub-cover body mold, reducing the molding steps of the first sub-cover body 117 and simplifying manual operations, thereby reducing labor costs.

[0066] Step S13: Heat the first sub-cover mold to 170-200 degrees and maintain it for 3-7 seconds. In this implementation scenario, the first sub-cover 117 is in a semi-cooked state of injection molding, oil pressure or silicone injection sol. The first sub-cover mold can be heated to 170 degrees, 180 degrees, 190 degrees, 200 degrees, and maintained for a suitable time accordingly, for example, 3 seconds, 5 seconds, 7 seconds, etc. At this time, the first sub-cover 117 has a certain hardness while still having a certain fluidity, which can ensure that the heating element 120 can still be centered between the first sub-cover 117 and the second sub-cover 116 to avoid deviation.

[0067] Most preferably, the first sub-cover body mold is heated to 190 degrees and maintained for 5 seconds, so that the first sub-cover body 117 can be maintained in a semi-cooked state.

[0068] In some other implementation scenarios, please refer to Figure 7, which is a flow chart of another embodiment of step S1 in Figure 5. Other steps can also be used for injection molding, oil pressure molding or silicone injection molding of the first sub-cover body 117:

[0069] Step S130: Heat the first sub-cover mold to 170-200 degrees and maintain it for 350-450 seconds. In this implementation scenario, when a structure that can fix the heating element 120 is provided in the first sub-cover mold, the first sub-cover 117 can be directly heated to a fully cooked state to stabilize its state. Specifically, the first sub-cover mold can be heated to 170 degrees, 180 degrees, 190 degrees, 200 degrees, and maintained for a suitable time accordingly, for example, 350 seconds, 370 seconds, 390 seconds, 400 seconds, 420 seconds, 440 seconds or 450 seconds, etc. The stability of the heating element 120 is ensured by the fixed structure when the first sub-cover mold and the second sub-cover mold are clamped.

[0070] Most preferably, the first sub-cover body mold is heated to 190 degrees and maintained for 400 seconds, so as to maintain the first sub-cover body 117 in a stable state.

[0071] Step S14: Open the mold to form the first sub-cover 117. In this implementation scenario, after the first sub-cover 117 is formed or reaches the desired state, the upper operating position of the first sub-cover mold is moved away from the first sub-cover mold, and the first sub-cover 117 is accommodated in the lower operating position.

[0072] In order to better ensure that the heating element 120 can fit tightly with the soft rubber cover body 110, the heating element 120 can be bent or pre-set. Please refer to Figure 8, which is a flow chart of an embodiment of step S2 in Figure 5. The above step S2 specifically includes:

[0073] Step S21: Obtain a heating plate with a curved through hole and connect the heating plates end to end to form a trumpet shape. In this implementation scenario, the heating plate is fan-shaped. By connecting the busbars of the heating plate end to end, a trumpet-shaped conical surface is formed. The trumpet-shaped heating plate is then placed on the first sub-cover 117. It is understood that to further ensure the fit between the heating element 120 and the first sub-cover 117, the central angle of the heating plate should be the same as the central angle of the soft rubber cover body 110.

[0074] It is understandable that in some embodiments, the heating plate can be made of metal or non-metal. The appropriate heating plate material can be selected according to the temperature design requirements and actual design structure of different breast shields to meet various different usage requirements.

[0075] Step S22: A fixing plate a20 is fixedly installed at the end-to-end connection of the heating plate, forming the heating element 120. In this implementation scenario, the required temperature is relatively high and maintained for a long time when the first sub-enclosure 117 and the second sub-enclosure 116 are molded together. Whether the heating plate is welded end to end or connected via other fixings, it may melt under prolonged high-temperature conditions. Therefore, a fixing plate a20 is installed at the end-to-end connection. The fixing plate a20 is fixed to the heating element 120 via fastening bolts, further enhancing the stability of the heating element 120.

[0076] In some other implementation scenarios, please refer to FIG9 , which is a flow chart of another embodiment of step S2 in FIG5 . Other steps may also be used to obtain the heating element 120 :

[0077] Step S21': Obtain a pressed annular heating plate with a through hole to form a heating element. The heating element 120 can be directly pressed into a conical structure with the same curvature as the soft rubber cover body 110, further saving installation steps and improving installation efficiency.

[0078] Step S23: Place the heating element 120 at a preset position of the first sub-cover body 117 to form a preset mold. The heating element 120, which is bent and has the same curvature as the first sub-cover body 117, is fitted with the first sub-cover body 117 to form a preset mold for standby use. Similarly, when the second sub-cover body 116 is formed by injection molding, oil pressure or silicone injection, in order to ensure that the first sub-cover body 117 and the second sub-cover body 116 can be completely fitted in the mold, the second sub-cover body 116 is usually also formed in a semi-cooked state. Please refer to Figure 10, which is a flow chart of an embodiment of step S3 described in Figure 5. Among them, step S3 specifically includes:

[0079] Step S31: Injecting an injection molding, hydraulic, or silicone injection sol into the second sub-cover mold. In some specific implementation scenarios, the injection molding, hydraulic, or silicone injection sol made of a soft rubber material is injected into the second sub-cover mold. To ensure that the first sub-cover 117 and the second sub-cover 116 can be completely fused and bonded, the first sub-cover 117 and the second sub-cover 116 should be made of the same material.

[0080] Step S32: Heat the second sub-cover mold to 170-200 degrees and maintain it for 3-7 seconds. In this implementation scenario, the second sub-cover 116 is in a semi-cooked state of injection molding, oil pressure or silicone injection sol. At this time, the second sub-cover 116 has a certain hardness and still has a certain fluidity. Specifically, the first sub-cover mold can be heated to 170 degrees, 180 degrees, 190 degrees, 200 degrees, and maintained for a suitable time accordingly, for example, 3 seconds, 5 seconds, 7 seconds, etc. When the lower operating position of the second sub-cover mold is moved away, the second sub-cover 116 can still remain on the upper operating position of the second sub-cover mold and has a certain stability.

[0081] Most preferably, the second sub-cover body mold is heated to 190 degrees and maintained at this temperature for 5 seconds, so as to maintain the second sub-cover body 116 in a stable state.

[0082] Step S33: Open the mold to form the second sub-cover body 116. At this time, the second sub-cover body 116 is located at the upper operating position of the second sub-cover body mold, waiting to be molded with the first sub-cover body 117 to form the entire breast pump structure.

[0083] Please refer to Figure 11, which is a flow chart of an embodiment of step S4 in Figure 5. The above step S4 specifically includes:

[0084] Step S41: The pre-molding mold and the second sub-shell mold are molded together to form a breast pump forming mold. In this implementation scenario, the pre-molding mold for the first sub-shell 117 and the second sub-shell mold for the second sub-shell 116 are placed on the same workstation. After the two are molded together, the first sub-shell 117 and the second sub-shell 116 are fixed together.

[0085] Step S42: Raise the temperature of the breast pump forming mold to 170-200 degrees and maintain it for 350-450 seconds until the injection molding, oil pressure or silicone injection sol is fully matured. When the first sub-cover body 117 and the second sub-cover body 116 are molded together, they need to be fused and connected. Specifically, the first sub-cover body mold and the second sub-cover body mold can be heated to 170 degrees, 180 degrees, 190 degrees, or 200 degrees and maintained for a suitable time, such as 350 seconds, 370 seconds, 390 seconds, 400 seconds, 420 seconds, 440 seconds, or 450 seconds. At least the edge areas of the first sub-cover body 117 and the second sub-cover body 116 need to be melted to connect them together, so that the entire soft rubber cover body 110 is formed as a whole.

[0086] Most preferably, the first sub-cover mold and the second sub-cover mold are heated to 190 degrees and maintained for 400 seconds, so that the formed soft rubber cover body 110 can be maintained in a stable state.

[0087] In some implementation scenarios, after the injection molding, hydraulic molding, or silicone injection molding of the breast pump is completed, a medium connected to an external power source needs to be assembled on the breast pump. Please refer to FIG12 , which is a flowchart of an embodiment of step S5 in FIG5 . The above step S5 specifically includes:

[0088] Step S51: After the breast pump mold has cooled and set, demoulding is performed. After the first sub-shell 117 and the second sub-shell 116 are molded together and the soft rubber shell body 110 formed by the first sub-shell 117 and the second sub-shell 116 is completely cooled and set, demoulding is performed to obtain the breast pump structure formed by injection molding, hydraulic molding, or silicone injection molding.

[0089] Step S52: Obtain the plug cover 130 and install it on the socket 118 to obtain the breast pump's suction element. In this implementation scenario, the plug cover 130 covers the socket 118 and is secured to it with screws. This prevents poor contact between the plug cover 130 and the socket 118, which could lead to an unstable connection between the breast pump element and the external power supply and affect user experience.

[0090] After extensive research, the inventors discovered that the advent of breast pumps makes breastfeeding more convenient. Breast pumps are used to extract breast milk and store it in a milk reservoir, making it readily available for infants to consume when needed. Breast pumps can be equipped with a heating element for heating. Currently, existing designs of breast pumps pose a risk of short-circuiting due to water ingress. Furthermore, the connection between the heating element and the power supply is unstable, affecting the stability of the breast pump's heating function. To address this technical problem, the present application provides the following embodiments.

[0091] As shown in Figures 13 to 16 , the breast pump 1a described in the embodiment of the present application includes a breast pump 100, a main unit 300, and a milk silo assembly 200. The breast pump 100 includes a soft rubber cover body 110, a heater 120, and a plug-in cover 130. The heater 120 is disposed within the soft rubber cover body 110. The plug-in cover 130 is electrically connected to the heater 120 and extends through the soft rubber cover body 110. The main unit 300 includes an electrical connection assembly 310, which is electrically connected to the plug-in cover 130 to supply power to the heater 120. The main unit 300 is provided with a first latch portion 304 on the periphery of the electrical connection assembly 310. The milk silo assembly 200 is disposed between the breast pump 100 and the main unit 300. The milk bin assembly 200 has a connection hole 211 corresponding to the plug-in cover 130. The plug-in cover 130 passes through the connection hole 211 and connects to the electrical connection assembly 310. The milk bin assembly 200 has a second snap-fit ​​portion 201 corresponding to the first snap-fit ​​portion 304, which is disposed around the connection hole 211. The second snap-fit ​​portion 201 snaps into contact with the first snap-fit ​​portion 304.

[0092] The breast pump 1a is used to extract breast milk and store the extracted breast milk in the milk bin assembly 200, so that the baby can eat it when needed. The soft rubber cover body 110 is provided with a fluid channel 111. During the use of the breast pump 1a, one side of the soft rubber cover body 110 can be in contact with human skin, so that breast milk enters the fluid channel 111 through the end of the fluid channel 111 close to the human body, and then the breast milk can enter the milk bin assembly 200. Furthermore, the fluid channel 111 has a trumpet-shaped opening at the end facing the human body to better fit the human body. In some embodiments, a suction device 316 is provided on the main unit 300. When the suction device 316 is working, a negative pressure is generated in the fluid channel 111, thereby sucking breast milk into the fluid channel 111.

[0093] The heating element 120 is used to heat the soft rubber cover body 110, thereby promoting milk discharge from the human body and improving the comfort of the user wearing the breast pump 1a. The host 300 can power the heating element 120. For example, the host 300 can be provided with an energy storage component, and the energy storage component is used to power the heating element 120. Specifically, the energy storage component can be electrically connected to the electrical connection component 310, and electrically connected to the heating element 120 through the electrical connection component 310 and the plug-in cover 130 that are electrically connected to each other, thereby powering the heating element 120. The host 300 can also be connected to a power socket to power the heating element 120.

[0094] As shown in Figures 15, 16 and 20, by providing the second snap-fit ​​portion 201 and the first snap-fit ​​portion 304, the milk bin assembly 200 and the host 300 can be kept relatively fixed around the connection hole 211, which is conducive to maintaining a stable connection between the electrical connection assembly 310 and the plug-in cover 130.

[0095] Optionally, as shown in FIG13 , the mounting portion 112 may be provided with one, two, or more. The number of connection holes 211, plug cover plates 130, and electrical connection components 310 is the same as the number of mounting portions 112 and corresponds one-to-one. A second latching portion 201 is provided on the periphery of each connection hole 211, thereby facilitating a stable connection between each plug cover plate 130 and the corresponding electrical connection component 310.

[0096] Optionally, as shown in FIG. 18 and FIG. 20 , the locking directions of the second locking portion 201 and the first locking portion 304 and the penetration direction of the connecting hole 211 intersect with each other.

[0097] With such arrangement, the second snap-fitting portion 201 and the first snap-fitting portion 304 are snap-fitted to each other, thereby limiting the relative movement of the milk bin assembly 200 and the host 300 in the direction of the connection hole 211 , thereby limiting the milk bin assembly 200 and the host 300 from moving away from each other.

[0098] When assembling the breast pump 1a, the milk suction piece 100 can be assembled to the milk bin assembly 200 along the penetration direction of the connecting hole 211, and the main unit 300 can be assembled to the milk bin assembly 200 along the buckling direction of the second buckle portion 201 and the first buckle portion 304.

[0099] Optionally, as shown in Figures 13, 15, and 16, the milk bin assembly 200 is provided with a first supporting edge surface 202 spaced apart from the connecting hole 211 in the insertion direction, and the main body 300 is provided with a second supporting edge surface 320 positioned corresponding to the first supporting edge surface 202. The first supporting edge surface 202 and the second supporting edge surface 320 arch toward the top of the breast pump 1a, with the top direction and the insertion direction intersecting each other. The second latch portion 201 is provided on the first supporting edge surface 202 and spaced apart from the connecting hole 211 in the insertion direction, and the first latch portion 304 is provided on the second supporting edge surface 320. One of the second latch portion 201 and the first latch portion 304 is a protrusion with a protrusion direction intersecting the insertion direction, and the other is a groove with a depth direction intersecting the insertion direction.

[0100] When assembling the breast pump 1a, the protrusion is inserted into the groove along the snap-fitting direction, thereby achieving snap-fit ​​connection between the second snap-fitting portion 201 and the first snap-fitting portion 304. Furthermore, the top direction of the breast pump 1a is the snap-fitting direction of the second snap-fitting portion 201 and the first snap-fitting portion 304.

[0101] The milk sucking piece 100 includes a soft rubber cover body 110, a heating piece 120 and a plug-in cover 130. The heating piece 120 is arranged inside the soft rubber cover body 110. The plug-in cover 130 is electrically connected to the heating piece 120 and is passed through the soft rubber cover body 110. The host 300 includes an electrical connection component 310. The electrical connection component 310 is conductively connected to the plug-in cover 130 to supply power to the heating piece 120. The host 300 is provided with a first buckle portion 304 on the periphery of the electrical connection component 310. The milk bin component 200 is arranged between the milk sucking piece 100 and the host 300. The milk bin component 200 is provided with a connection hole 211 corresponding to the position of the plug-in cover 130. The plug-in cover 130 passes through the milk sucking piece 100. It is connected to the electrical connection component 310 through the connection hole 211. The milk silo component 200 is provided with a second snap portion 201 corresponding to the first snap portion 304 on the periphery of the connection hole 211. The second snap portion 201 is snap-connected to the first snap portion 304. The heating element 120 has a heating effect. The main unit 300 and the milk silo component 200 are snap-connected through the first snap portion 304 and the second snap portion 201, so that the main unit 300 can remain relatively fixed with the milk silo component 200, which is conducive to keeping the milk suction piece 100 and the milk silo component 200 relatively fixed, and can keep the electrical connection component 310 and the plug-in cover 130 stably connected, so that the heating element 120 has a stable heating effect.

[0102] Optionally, the soft rubber cover body 110 is provided with a protruding mounting portion 112 corresponding to the connecting hole 211, and the plug-in cover plate 130 is electrically connected to the heating element 120 and is inserted through the mounting portion 112. A third snap-fit ​​portion 114 is provided on the periphery of the mounting portion 112. The milk bin assembly 200 is provided with a fourth snap-fit ​​portion 212 within the connecting hole 211. The milk bin assembly 200 is connected to the soft rubber cover body 110, the mounting portion 112 is inserted into the connecting hole 211, and the third snap-fit ​​portion 114 and the fourth snap-fit ​​portion 212 are snap-fitted to limit the relative movement of the milk bin assembly 200 and the soft rubber cover body 110 in the direction of separation from each other.

[0103] After operation, the breast pump 1a can be disassembled into the milking element 100, the milk chamber assembly 200, and the main unit 300, making it easy to clean the milking element 100 and the milk chamber assembly 200. When cleaning the milking element 100, the soft rubber cover body 110 and the plug-in cover 130 seal the heater 120, preventing it from coming into contact with water and ensuring stable operation. In some embodiments, the plug-in cover 130 can be screwed to the mounting portion 112, tightly contacting the mounting portion 112. This prevents water from entering the soft rubber cover body 110 and affecting the operation of the heater 120 when cleaning the milking element 100.

[0104] Optionally, as shown in Figures 19 and 20, the plug-in cover 130 includes a fixing portion 133, a shell 134, and a first elastic movable portion 135. The shell 134 is fixed to the mounting portion 112, the fixing portion 133 is fixedly connected to the shell 134, and the first elastic movable portion 135 is electrically connected to the heating element 120. One end of the fixing portion 133 is exposed relative to the electrical connection component 310 and is electrically connected to the electrical connection component 310, and the other end of the fixing portion 133 is electrically connected to the first elastic movable portion 135. Since the shell 134, the mounting portion 112, and the fixing portion 133 are all relatively fixed, it is beneficial to seal between the shell 134 and the mounting portion 112, and between the shell 134 and the fixing portion 133, thereby achieving waterproof protection for the heating element 120.

[0105] Optionally, the fixing portion 133 is a copper column.

[0106] Optionally, as shown in Figure 20, the electrical connection assembly 310 may include a second elastic movable portion 313. The second elastic movable portion 313 elastically abuts against the plug-in cover 130, ensuring a stable connection between the electrical connection assembly 310 and the plug-in cover 130. During assembly of the breast pump 100 and the milk silo assembly 200, the second elastic movable portion 313 is compressed by the pressure of the plug-in cover 130, thereby facilitating assembly of the breast pump 100 and the milk silo assembly 200.

[0107] The milking device 100 and the main unit 300 are respectively mounted on either side of the milk bin assembly 200. A connection hole 211 is provided in the milk bin assembly 200, allowing the electrical connection assembly 310 and the plug cover 130 to pass through and connect to the milk bin assembly 200. By providing a snap-fit ​​connection between the third and fourth snap-fit ​​portions 114 and 212, the mounting portion 112 can be relatively fixed to the milk bin assembly 200, facilitating a stable connection between the electrical connection assembly 310 and the plug cover 130.

[0108] In some embodiments, the electrical connection assembly 310 and the plug cover 130 are elastically abutted, and this elastic action can cause the electrical connection assembly 310 and the plug cover 130 to tend to move away from each other. By providing a snap connection between the third snap portion 114 and the fourth snap portion 212, the electrical connection assembly 310 and the plug cover 130 can be prevented from moving away from each other.

[0109] Optionally, as shown in Figures 13 and 17, the third snap-fit ​​portion 114 is annular and protrudes from the outer peripheral wall of the mounting portion 112. The connecting hole 211 includes a first hole segment 2111 and a second hole segment 2112 connected along the direction of penetration of the mounting portion 112. The first hole segment 2111 and the second hole segment 2112 form an annular step surface 2121 at the connection point, which serves as the fourth snap-fit ​​portion 212. The annular step surface 2121 faces away from the soft rubber cover body 110. The third snap-fit ​​portion 114 is located in the second hole segment 2112 and abuts against the annular step surface 2121.

[0110] Specifically, in a cross-section perpendicular to the direction of penetration of the mounting portion 112, the dimensions of the second hole segment 2112 are larger than those of the first hole segment 2111, thereby forming an annular step surface 2121. During assembly of the milking piece 100 and the milk silo assembly 200, the third latch portion 114 elastically deforms through the first hole segment 2111 and into the second hole segment 2112. After entering the second hole segment 2112, the third latch portion 114 deforms back and abuts against the annular step surface 2121. This step surface 2121 secures the third latch portion 114 within the second hole segment 2112, thereby securing the mounting portion 112 within the connection hole 211. This facilitates a stable connection between the electrical connection assembly 310 and the plug cover 130.

[0111] Of course, when the milking piece 100 and the main unit 300 are disassembled, the third buckle portion 114 can be released from the restriction of the annular step surface 2121 through elastic deformation, so that the mounting portion 112 can be released from the connecting hole 211 .

[0112] Optionally, as shown in Figures 13 and 17, the outer peripheral wall of the mounting portion 112 is provided with an elastic support protrusion 115 spaced apart from the third snap portion 114 along the penetration direction of the mounting portion 112, and the elastic support protrusion 115 elastically abuts against the hole wall of the connecting hole 211, so that the mounting portion 112 and the connecting hole 211 are tightly fitted.

[0113] This arrangement, on the one hand, increases the friction between the mounting portion 112 and the wall of the connecting hole 211, preventing the mounting portion 112 from dislodging from the connecting hole 211 during use of the breast pump 1a, thereby facilitating stable operation of the breast pump 1a. On the other hand, the elastic support protrusion 115 acts as a limiter, restricting movement of the mounting portion 112 perpendicular to its insertion direction, thereby facilitating a stable connection between the electrical connection assembly 310 and the plug cover 130.

[0114] Optionally, as shown in FIG. 13 and FIG. 17 , the elastic support protrusion 115 is provided in a ring shape along the circumference of the mounting portion 112 , and the elastic support protrusion 115 abuts against the hole wall of the connecting hole 211 along the circumference.

[0115] By setting the elastic support protrusion 115 to be annular, the contact area between the elastic support protrusion 115 and the hole wall of the connecting hole 211 can be increased, thereby increasing the friction between the mounting portion 112 and the hole wall of the connecting hole 211, thereby preventing the mounting portion 112 from detaching from the connecting hole 211 during use of the breast pump 1a.

[0116] In some embodiments, as shown in Figure 18, the milk suction piece 100 and the milk bin assembly 200 abut against each other to form a milk storage cavity 213 for storing breast milk. The elastic support protrusion 115 at the mounting portion 112 can seal the milk storage cavity 213.

[0117] 17 , the number of the elastic support protrusions 115 is at least two, and the at least two elastic support protrusions 115 are spaced apart along the penetrating direction of the mounting portion 112. For example, the number of the elastic support protrusions 115 is two, three, or four.

[0118] By setting the number of elastic support protrusions 115 to at least two, the contact area between the elastic support protrusion 115 and the hole wall of the connecting hole 211 can be increased, thereby increasing the friction between the mounting portion 112 and the hole wall of the connecting hole 211, and also enhancing the limiting effect of the elastic support protrusion 115.

[0119] In some embodiments, by setting the number of the elastic support protrusions 115 to at least two, the sealing effect on the milk storage chamber 213 can be increased.

[0120] Optionally, as shown in FIG. 17 , the third locking portion 114 is an elastic soft rubber portion protruding from the outer peripheral wall of the mounting portion 112 .

[0121] This arrangement allows the third buckle portion 114 to elastically deform and recover, thereby facilitating assembly of the breast pump 100 and the milk bin assembly 200. Furthermore, the third buckle portion 114 is integrally formed with the outer peripheral wall of the mounting portion 112, thereby simplifying the manufacturing process of the breast pump 100.

[0122] Optionally, as shown in Figures 14 and 18, the soft rubber cover body 110 includes a second sub-cover 116, a first sub-cover 117 and a socket 118. The socket 118 is fixed to the second sub-cover 116, the plug cover 130 is passed through the socket 118, and the first sub-cover 117 is connected to the second sub-cover 116 by injection molding, oil pressure or silicone injection, and is further wrapped around the outer periphery of the socket 118. The socket 118 and the portion of the first sub-cover 117 wrapped around its outer periphery form a mounting portion 112. The heating element 120 is arranged between the second sub-cover 116 and the first sub-cover 117, and the fluid channel 111 runs through the second sub-cover 116 and the first sub-cover 117.

[0123] Furthermore, the socket 118 defines an inner mounting hole 113, through which the plug cover 130 is inserted. The inner mounting hole 113 allows the plug cover 130 to pass through the soft rubber cover body 110 and connect to the heating element 120. The plug cover 130 effectively blocks the inner mounting hole 113.

[0124] The plug cover 130 is fixedly connected to the soft rubber cover body 110 via the plug socket 118. The first sub-cover 117 is wrapped around the outer periphery of the plug socket 118, thereby achieving a connection between the first sub-cover 117 and the plug socket 118 and achieving a seal between the first sub-cover 117 and the plug socket 118, thereby providing waterproof protection for the heating element 120.

[0125] During the preparation of the soft rubber cover body 110, the second sub-cover 116 can be firstly injection molded, hydraulically molded, or silicone-injected. Then, the heater 120 and the connector 118 can be assembled on one side of the second sub-cover 116. Finally, the first sub-cover 117 can be molded on the side of the second sub-cover 116 where the heater 120 and the connector 118 are assembled, by injection molding, hydraulically molded, or silicone-injected. While the first sub-cover 117 is being molded, the first sub-cover 117 can be connected to the second sub-cover 116, so that the heater 120 is located between the second sub-cover 116 and the first sub-cover 117. At the same time, the first sub-cover 117 also covers the outer periphery of the connector 118.

[0126] Optionally, as shown in Figure 20, the outer peripheral wall of the socket 118 is provided with a tooth-shaped protrusion 1181, and the first sub-cover 117 can wrap the tooth-shaped protrusion 1181 during injection molding, oil pressure or silicone injection molding, so that the first sub-cover 117 and the outer peripheral wall of the socket 118 are interlocked to improve the connection stability and sealing of the first sub-cover 117 and the socket 118.

[0127] Optionally, the plug cover 130 can be fixed to the plug socket 118 by screws. The plug socket 118 is made of hard plastic or metal, so it has good supporting performance.

[0128] Optionally, as shown in FIG. 14 and FIG. 18 , the heating area of ​​the heating element 120 is arranged around the fluid channel 111 .

[0129] For example, the heating element 120 can be configured in a ring shape and sleeved on the second sub-cover body 116. Such a configuration can improve the uniformity of heating of the soft rubber cover body 110.

[0130] Optionally, the heating element 120 includes an FPC, ie, a flexible printed circuit board.

[0131] Optionally, as shown in Figures 13 and 18, the milk bin assembly 200 is provided with a milk storage chamber 213, or the milk bin assembly 200 and the soft rubber cover body 110 are surrounded by a milk storage chamber 213, and the lowest position of the heating area of ​​the heating element 120 in the height direction of the breast pump 1a is higher than or coincides with the preset capacity threshold position of the milk storage chamber 213 in the height direction.

[0132] Specifically, as shown in FIG14 , a heating circuit is distributed on the heating area of ​​the heating element 120 , while no heating circuit is provided on the non-heating area of ​​the heating element 120 .

[0133] The preset capacity threshold position is the breast milk level position corresponding to the upper limit of the reasonable milk storage capacity of the milk storage chamber 213. This setting can separate the breast milk from the heating area of ​​the heater 120, preventing the breast milk from being heated for a long time by the heater 120, resulting in nutritional loss and bacterial growth.

[0134] For example, if the preset capacity threshold position of the milk storage chamber 213 in the height direction is the 1 / 2 capacity position, the breast milk level in the milk storage chamber 213 is often lower than the 1 / 2 capacity position in the height direction. Furthermore, if the preset capacity threshold position of the milk storage chamber 213 in the height direction is the 3 / 4 capacity position, the breast milk level in the milk storage chamber 213 is often lower than the 3 / 4 capacity position in the height direction. Furthermore, if the preset capacity threshold position of the milk storage chamber 213 in the height direction is the 4 / 5 capacity position, the breast milk level in the milk storage chamber 213 is often lower than the 4 / 5 capacity position in the height direction.

[0135] The milk storage chamber 213 is formed by enclosing the milk bin assembly 200 and the soft rubber cover body 110 , so that the milk storage chamber 213 can be easily cleaned when the milk bin assembly 200 and the milk suction piece 100 are disassembled.

[0136] Optionally, as shown in Figures 13 and 18 , the milk bin assembly 200 includes a bin body 210 and an elastic member 220. A connection hole 211 is provided in the bin body 210, which is connected to the soft rubber cover body 110. The bin body 210 defines a milk storage chamber 213, or the bin body 210 and the soft rubber cover body 110 enclose a milk storage chamber 213. The milk storage chamber 213 is used to store breast milk extracted by the breast pump 1a.

[0137] The connecting hole 211 is spaced apart from the milk storage cavity 213. Furthermore, when the user uses the breast pump 1a in a sitting or lying position, the connecting hole 211 is located above at least a portion of the milk storage cavity 213.

[0138] As shown in Figures 13 and 18, the housing 210 defines a transition chamber 214 having a first opening 215, a second opening 216, and a third opening 217. The transition chamber 214 communicates with the fluid channel 111 via the first opening 215 and with the milk storage chamber 213 via the second opening 216. An elastic member 220 is disposed within the transition chamber 214 and has an expanded state and a contracted state. The main unit 300 covers the third opening 217 and, through the third opening 217, drives the elastic member 220 to switch between the expanded and contracted states, thereby varying the air pressure within the transition chamber 214.

[0139] The transition chamber 214 is exposed relative to the main unit 300 through the third opening 217. The elastic member 220 can block the third opening 217, isolating the transition chamber 214 from the main unit 300. The first opening 215 is always open. When the main unit 300 is pumping, the second opening 216 is closed, and the elastic member 220 elastically deforms and enters a contracted state. The space occupied by the elastic member 220 in the transition chamber 214 is reduced, reducing the air pressure in the transition chamber 214 and the air inlet passage, thereby generating suction to enable the extraction of breast milk. When the main unit 300 completes pumping, the second opening 216 is opened, and the elastic member 220 deforms and returns to an expanded state, increasing the air pressure in the transition chamber 214. Breast milk can flow into the milk storage chamber 213 through the second opening 216.

[0140] Furthermore, when the breast pump 1 a is working, the transition chamber 214 is located above at least a portion of the milk storage chamber 213 , thereby facilitating the flow of breast milk into the milk storage chamber 213 .

[0141] Optionally, as shown in Figures 18 and 21, the main unit 300 is provided with a suction chamber 314, or the main unit 300 and the milk bin assembly 200 enclose a suction chamber 314, and the elastic member 220 separates the suction chamber 314 from the transition chamber 214. The main unit 300 can extract gas from the suction chamber 314 through a suction device 316, causing the elastic member 220 to elastically deform and enter a contracted state. The suction chamber 314 can have an air inlet to communicate with the outside world. The air inlet is blocked when the suction device 316 is operating. When the suction device 316 completes extraction, the air inlet is opened to allow air to enter the suction chamber 314, thereby restoring the air pressure in the suction chamber 314 and causing the elastic member 220 to deform and return to an expanded state.

[0142] The elastic member 220 separating the suction chamber 314 from the transition chamber 214 prevents the main unit 300 from contaminating the milk in the milk storage chamber 213. When the main unit 300 is pumping, closing the second opening 216 prevents gas in the milk storage chamber 213 from being drawn into the transition chamber 214, thereby rapidly reducing the air pressure in the transition chamber 214 and the fluid passage 111.

[0143] Optionally, as shown in Figure 22, the host 300 may be provided with a solenoid valve 315. When the suction device 316 is pumping air, the solenoid valve 315 blocks the air inlet. When the suction device 316 completes pumping air, the solenoid valve 315 opens the air inlet.

[0144] Optionally, as shown in Figures 13 and 18, the milk bin assembly 200 includes a duckbill valve 230, which is disposed in the second opening 216 and is configured to be opened or closed by pressure changes in the transition chamber 214. The duckbill valve 230 closes the second opening 216 when the elastic member 220 is in a contracted state, and opens the second opening 216 when the elastic member 220 is in an expanded state.

[0145] The normally open end of the duckbill valve 230 is positioned toward the transition chamber 214. The other end of the duckbill valve 230 is flexible and selectively opens in response to changes in air pressure within the transition chamber 214. Specifically, a decrease in pressure within the transition chamber 214 causes the other end of the duckbill valve 230 to close, thereby closing the second opening 216. When pressure within the transition chamber 214 recovers, the other end of the duckbill valve 230 opens, thereby opening the second opening 216. By providing the duckbill valve 230, the open and close states of the second opening 216 can be automatically adjusted to suit the suction action of the main unit 300.

[0146] Optionally, as shown in Figures 13 and 22, the soft rubber cover body 110 is provided with a channel portion 119 extending toward one side of the milk bin assembly 200. The soft rubber cover body 110 also defines a fluid channel 111 that extends through the channel portion 119. The milk bin assembly 200 includes an annular wall 218 that surrounds at least a portion of the outer periphery of the channel portion 119. The milk bin assembly 200 is provided with an elastic engagement groove 219 on the outer periphery of the annular wall 218. The main unit 300 is provided with an elastic bump 301 positioned corresponding to the elastic engagement groove 219. The elastic bump 301 is embedded in the elastic engagement groove 219.

[0147] Furthermore, as shown in Figures 13 and 22, the soft rubber cover body 110 is provided with a channel portion 119 extending and protruding toward one side of the chamber body 210, and the fluid channel 111 runs through the channel portion 119. The chamber body 210 includes an annular wall 218 surrounding at least part of the outer periphery of the channel portion 119. The transition chamber 214 is spaced apart from the annular wall 218, and the first opening 215 communicates with the space enclosed by the annular wall 218. The chamber body 210 is provided with an elastic snap-fit ​​groove 219 on the outer periphery of the annular wall 218, and the main unit 300 is provided with an elastic bump bead 301 whose position corresponds to the elastic snap-fit ​​groove 219. The elastic bump bead 301 is embedded in the elastic snap-fit ​​groove 219.

[0148] During assembly of the breast pump 100 and the milk silo assembly 200, the channel portion 119 can be inserted into the space enclosed by the annular wall 218, thereby connecting the first opening 215 with the fluid channel 111. The annular wall 218 facilitates insertion of the channel portion 119 into the milk silo assembly 200, thereby facilitating assembly of the breast pump 100 and the milk silo assembly 200.

[0149] Optionally, the elastic bump bead 301 includes a bump bead and a spring connected to each other, and the elastic bump bead 301 has elasticity through the deformation of the spring.

[0150] By embedding the elastic bead 301 within the elastic engagement groove 219, loosening of the connection between the main unit 300 and the milk bin assembly 200 can be prevented, thereby improving the suction efficiency of the main unit 300. During assembly, the embedding of the elastic bead 301 within the elastic engagement groove 219 also facilitates proper assembly of the milking piece 100 and the milk bin assembly 200, and serves as a reminder to the assembler. Furthermore, the elastic engagement groove 219 can be located at one end of the annular wall 218 near the transition chamber 214. This arrangement improves the stability of the connection between the main unit 300 and the milk bin assembly 200 at the third opening 217, reducing the adverse effects of deformation of the elastic member 220 on the stability and sealing of the connection between the main unit 300 and the milk bin assembly 200.

[0151] Optionally, the number of the elastic beads 301 can be set to one, two or more.

[0152] Optionally, as shown in Figures 13 and 21 , the elastic member 220 defines a cavity 222 with an open end 221, and the outer peripheral wall of the elastic member 220 abuts against the housing 210. The main unit 300 includes a sealing insert 302, which defines a through hole 303. The sealing insert 302 is inserted into the cavity 222 through the open end 221 and seals against the wall of the cavity 222. The main unit 300 is configured to draw air from the cavity 222 through the through hole 303, thereby switching the elastic member 220 between an expanded state and a contracted state.

[0153] The peripheral wall of the elastic member 220 abuts between the housing 210 and the sealing insert 302, effectively sealing the third opening 217 and the through hole 303. This allows the air pressure within the transition chamber 214 to promptly and quickly respond to the suction action of the main unit 300. When the main unit 300 is pumping air, the air pressure within the concave cavity 222 decreases, causing the elastic member 220 to contract. When the main unit 300 is completely pumped, the air pressure within the concave cavity 222 returns, causing the elastic member 220 to expand.

[0154] Furthermore, the main unit 300 is provided with a suction chamber 314 , which is communicated with the concave cavity 222 through the through hole 303 .

[0155] 21 , the sealing insert portion 302 is arranged in an oblique frustum shape in its extending direction, wherein the dimension of the sealing insert portion 302 in a direction perpendicular to the extending direction gradually increases in a direction away from the bottom surface of the cavity 222 .

[0156] Such a configuration can, on the one hand, guide the sealing insert portion 302 when inserted into the concave cavity 222, thereby facilitating the assembly of the main unit 300 and the milk bin assembly 200; on the other hand, when the main unit 300 and the milk bin assembly 200 are disassembled, the pulling force when pulling the sealing insert portion 302 out of the concave cavity 222 can be reduced, thereby reducing the risk of the elastic member 220 being pulled out of the transition cavity 214 along with the sealing insert portion 302.

[0157] Optionally, as shown in Figures 13 and 21, an annular support wall 225 is provided on the periphery of the warehouse body 210 surrounding the third opening 217, and the elastic member 220 includes an annular hanging portion 223 folded outward from the opening end 221, and the hanging portion 223 is supported and hung on the support wall 225.

[0158] By providing the annular hanging portion 223 and the supporting wall 225 , it is convenient to assemble the elastic member 220 on the bin body 210 , and it is also beneficial to maintain the connection stability between the elastic member 220 and the bin body 210 .

[0159] Optionally, as shown in FIG. 13 and FIG. 21 , an annular sealing rib 224 is provided on the inner peripheral wall of the concave cavity 222 , and the annular sealing rib 224 surrounds and abuts against the sealing insertion portion 302 .

[0160] By providing the annular sealing rib 224 , the sealing effect between the elastic member 220 and the sealing insert portion 302 can be improved, thereby improving the working performance of the breast pump 1 a.

[0161] Optionally, as shown in Figures 16 to 18, the plug cover 130 includes two first power supply contacts 131 and two first temperature measurement contacts 132, and the electrical connection assembly 310 includes two second power supply contacts 311 and two second temperature measurement contacts 312. The two first power supply contacts 131 and the two second power supply contacts 311 are electrically connected in a one-to-one correspondence, allowing the host 300 to supply power to the heating element 120, and the two first temperature measurement contacts 132 and the two second temperature measurement contacts 312 are electrically connected in a one-to-one correspondence, allowing the host 300 to obtain the temperature of the plug cover 130.

[0162] The two first power supply contacts 131 can be connected to the positive and negative terminals of a power source, respectively, to power the heater 120. A temperature measuring component can be disposed within the soft rubber cover body 110. For example, the temperature measuring component can include a thermistor. The temperature measuring component can output an electrical signal to the host 300 via the two first temperature measuring contacts 132, allowing the host 300 to obtain the temperature within the soft rubber cover body 110 based on the electrical signal.

[0163] Furthermore, as shown in Figures 13 and 17 , the breast pump 100 may include two plug-in covers 130, each of which has a first power supply contact 131 and a first temperature measurement contact 132. The plug-in covers 130 may include two fixing portions 133, with the surfaces of the fixing portions 133 facing the electrical connection assembly 310 serving as the first power supply contact 131 and the first temperature measurement contact 132, respectively.

[0164] The host 300 may include two electrical connection components 310, each of which has a second power supply contact 311 and a second temperature measurement contact 312. The electrical connection components 310 may include two second elastic movable portions 313, and the surfaces of the two second elastic movable portions 313 facing the plug cover 130 may serve as the second power supply contact 311 and the second temperature measurement contact 312, respectively.

[0165] To sum up, this embodiment can realize the snap connection between the milk suction piece 100 and the milk bin assembly 200 through the third snap portion 114 and the fourth snap portion 212. The milk suction piece 100 can remain relatively fixed with the milk bin assembly 200, which is conducive to maintaining a stable connection between the electrical connection assembly 310 and the plug-in cover 130, so that the breast pump 1a has a stable heating effect.

[0166] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0167] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A breast pumping piece of a breast pump, characterized in that: include: A soft rubber cover body, wherein the soft rubber cover body comprises a fluid channel; A heating element, the heating element comprising a main body and a connecting portion extending from the main body, the connecting portion being provided with an electrical plug-in interface; wherein, The outer wall of the soft rubber cover body away from the fluid channel is provided with a mounting hole; The main body is arranged in the body of the soft rubber cover, the main body is a platform, and the main body is adapted to the body of the soft rubber cover; The connecting portion is arranged in the mounting hole, and the electrical plug interface is exposed to the soft rubber cover body through the mounting hole; The soft rubber cover body is integrally formed with the heating element during the process of injection molding, oil pressure or silicone injection molding.

2. The breast pump according to claim 1, characterized in that: The main body is formed by connecting the sides of a curved heating plate end to end. The main body and the connecting part are both provided with through holes, and the through holes are filled with injection molding, oil pressure or silicone injection sol; a fixing plate is provided at the interface of the heating plate.

3. The breast pump according to claim 1, characterized in that: The main body is formed by pressing an annular heating plate. The heating plate and the connecting part are both provided with through holes, and the through holes are filled with injection molding, oil pressure or silicone injection sol.

4. The breast pump according to claim 2 or 3, characterized in that: The electrical plug interface comprises a socket, which is arranged in the mounting hole. The connecting portion is provided with contacts and studs. The socket is sleeved on the studs, and the contacts are accommodated in the socket.

5. The breast pump according to claim 4, characterized in that The plug interface also includes a plug cover plate, and the plug cover plate covers the plug socket; The plug cover is also provided with a spring pin, the plug socket is accommodated in the mounting hole, the spring pin passes through the mounting hole and the plug socket abuts against the contact.

6. The breast pump according to claim 1, characterized in that: The soft rubber cover body comprises a first sub-cover body and a second sub-cover body, and the first sub-cover body and the second sub-cover body are fixedly connected; The main body is disposed between the first sub-cover body and the second sub-cover body.

7. A method for manufacturing a breast pumping part of a breast pump, characterized in that: Injection molding, oil pressure or silicone injection to form the first sub-cover body and / or the second sub-cover body, after the mold is opened, the first sub-cover body is retained in the first sub-cover body mold, and the second sub-cover body is retained in the second sub-cover body mold; Obtaining a heating element, and placing the heating element at a preset position of the first sub-cover body to obtain a pre-molding mold; The pre-molding mold and the second sub-cover body mold are molded together; The milk suction part of the breast pump is obtained by demoulding.

8. A breast pump, characterized in that: include: The breast pump according to claim 1, wherein the breast pump comprises a plug-in cover plate; the plug-in cover plate is electrically connected to the heating element and is disposed through the soft rubber cover body; The host comprises an electrical connection component, wherein the electrical connection component is electrically connected to the plug cover plate to supply power to the heating element; the host is provided with a first buckle portion on the periphery of the electrical connection component; A milk bin assembly is arranged between the milk suction piece and the main unit; the milk bin assembly is provided with a connection hole corresponding to the position of the plug-in cover plate, and the plug-in cover plate passes through the connection hole to be connected with the electrical connection assembly; the milk bin assembly is provided with a second buckle portion corresponding to the first buckle portion on the periphery of the connection hole, and the second buckle portion is buckled and connected with the first buckle portion.

9. The breast pump according to claim 8, characterized in that The buckling directions of the second buckling portion and the first buckling portion intersect with the penetration direction of the connecting hole.

10. The breast pump according to claim 9, characterized in that The milk bin assembly is provided with a first supporting edge surface which is spaced apart from the connecting hole in the penetration direction, and the main unit is provided with a second supporting edge surface which is located corresponding to the first supporting edge surface, the first supporting edge surface and the second supporting edge surface are arched toward the top direction of the breast pump, and the top direction and the penetration direction intersect with each other; the second buckle portion is provided on the first supporting edge surface and is spaced apart from the connecting hole along the penetration direction, and the first buckle portion is provided on the second supporting edge surface; one of the second buckle portion and the first buckle portion is a protrusion whose protrusion direction intersects with the penetration direction, and the other is a groove whose depth direction intersects with the penetration direction.

11. The breast pump according to any one of claims 8 to 10, characterized in that: The soft rubber cover body is protrudingly provided with a mounting portion corresponding to the connecting hole, the plug-in cover is electrically connected to the heating element and is inserted through the mounting portion; a third buckle portion is provided on the periphery of the mounting portion; The milk bin assembly is provided with a fourth buckle portion in the connecting hole; the milk bin assembly is connected to the soft rubber cover body, and the mounting portion is passed through the connecting hole. The third buckle portion and the fourth buckle portion are buckled and connected to limit the relative movement of the milk bin assembly and the soft rubber cover body in the direction of separation from each other.

12. The breast pump according to claim 11, characterized in that The third snap-on portion is arranged in an annular shape and protrudes from the outer peripheral wall of the mounting portion; the connecting hole includes a first hole segment and a second hole segment connected along the penetration direction of the mounting portion, and the first hole segment and the second hole segment form an annular step surface serving as the fourth snap-on portion at the connection, and the annular step surface faces away from the soft rubber cover body; the third snap-on portion is located in the second hole segment and abuts against the annular step surface.

13. The breast pump according to claim 11, characterized in that The outer peripheral wall of the mounting portion is provided with an elastic support protrusion spaced apart from the third buckle portion along the penetration direction of the mounting portion, and the elastic support protrusion elastically abuts against the hole wall of the connecting hole, so that the mounting portion and the connecting hole are tightly fitted.

14. The breast pump according to claim 13, characterized in that The elastic support protrusion is arranged in a ring shape along the circumference of the mounting portion, and the elastic support protrusion abuts against the hole wall of the connecting hole along the circumference; and / or the number of the elastic support protrusions is at least two, and at least two of the elastic support protrusions are arranged at intervals along the penetration direction of the mounting portion; and / or the third snap-fit ​​portion is an elastic soft rubber portion protruding from the outer peripheral wall of the mounting portion.

15. The breast pump according to claim 8, characterized in that The soft rubber cover body is provided with a channel portion extending and protruding toward one side of the milk bin assembly, and the soft rubber cover body is also provided with a fluid channel, and the fluid channel runs through the channel portion; the milk bin assembly includes an annular wall surrounding at least part of the outer circumference of the channel portion, and the milk bin assembly is provided with an elastic snap-fit ​​groove on the outer circumference of the annular wall, and the main unit is provided with an elastic bump bead whose position corresponds to the elastic snap-fit ​​groove; the elastic bump bead is embedded in the elastic snap-fit ​​groove.

16. The breast pump according to claim 15, characterized in that The milk bin assembly comprises a bin body and an elastic member; the connection hole is provided in the bin body, the bin body is connected to the soft rubber cover body, the bin body is provided with a milk storage cavity or the bin body and the soft rubber cover body are surrounded to form a milk storage cavity; The warehouse body is provided with a transition chamber, and the transition chamber has a first opening, a second opening and a third opening; the transition chamber is communicated with the fluid channel through the first opening, and the transition chamber is communicated with the milk storage chamber through the second opening; the elastic member is arranged in the transition chamber, and has an expanded state and a contracted state; the host covers the third opening, and drives the elastic member to switch between the expanded state and the contracted state through the third opening to change the air pressure in the transition chamber; the transition chamber is spaced apart from the annular surrounding wall, and the first opening is communicated with the space surrounded by the annular surrounding wall.

17. The breast pump according to claim 16, characterized in that The milk bin assembly includes a duckbill valve, which is arranged in the second opening and is used to be opened or closed by the pressure change in the transition chamber. The second opening is closed when the elastic member is in the contracted state, and the second opening is opened when the elastic member is in the expanded state.

18. The breast pump according to claim 16, characterized in that The elastic member is provided with a concave cavity with an open end, and the outer peripheral wall of the elastic member is in contact with the warehouse body; the main unit has a sealing insertion portion, the sealing insertion portion is provided with a through hole, the sealing insertion portion is inserted into the concave cavity through the open end, and is sealingly in contact with the cavity wall of the concave cavity; the main unit is used to suck the air in the concave cavity through the through hole, so that the elastic member switches between the expanded state and the contracted state.

19. The breast pump according to claim 18, characterized in that The sealing insertion portion is arranged in an oblique frustum shape in its extension direction; wherein the dimension of the sealing insertion portion in a direction perpendicular to the extension direction gradually increases in a direction away from the bottom surface of the cavity.

20. The breast pump according to claim 8, characterized in that The soft rubber cover body is provided with a fluid channel, and the heating area of ​​the heater is arranged around the fluid channel; and / or the milk bin assembly is provided with a milk storage cavity or the milk bin assembly and the soft rubber cover body are arranged to form a milk storage cavity, and the lowest position of the heating area of ​​the heater in the height direction of the breast pump is higher than or overlaps with the preset capacity threshold position of the milk storage cavity in the height direction.

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