A milk warmer

Abstract

This invention relates to the field of baby product technology, specifically to a bottle warmer, comprising a body with a cavity for assembling a baby bottle. The cavity contains a first heating element and a second heating element. The baby bottle can be installed upright or upside down in the cavity. The first heating element heats the side walls of the bottle in either the upright or upside-down position. When the bottle is upright in the cavity, the second heating element heats the bottom wall of the bottle. When the bottle is upside down, the second heating element contacts the liquid inside the bottle for contact heating. This invention effectively solves the problems of uneven heating, low efficiency, and poor adaptability caused by a single heating method in existing technologies by using a first heating element to heat the side walls of the bottle and dynamically switching between bottom wall heating and liquid contact heating modes depending on the assembly direction.

Description

Technical Field

[0001] This invention relates to the field of baby product technology, specifically to a bottle warmer. Background Technology

[0002] Bottle warmers, as a key auxiliary device in infant feeding, are mainly used to precisely heat and maintain the temperature of the liquid inside the bottle, ensuring that the milk temperature meets feeding needs and improving ease of use. However, existing bottle warmers have significant shortcomings in their heating mechanisms, primarily manifested in their overly simplistic and inflexible heating methods. Specifically, some bottle warmers only use a side-wall heating structure, such as the product with publication number CN223232566U. Its design only arranges heating elements around the side wall of the bottle, resulting in ineffective heat transfer to the bottom of the bottle or the liquid inside. When the bottle is upright, the bottom area receives insufficient heating, the heating process is slow, and the temperature distribution is uneven, especially when the liquid volume is large, the central area heats up later. When the bottle is inverted, the side-wall heating is almost ineffective at reaching the liquid inside, causing a significant decrease in heating efficiency, impairing the user experience, and limiting the device's adaptability to different feeding scenarios. Another type of bottle warmer relies solely on bottom heating, as exemplified by CN223886707U. Its heating element is fixed to the bottom of the container, which quickly raises the bottom wall temperature, but the side walls receive only slight heating, easily leading to a coexistence of localized overheating and cold zones. When the bottle is inverted, the bottom heating element completely loses contact with the liquid, losing its heating function and further exacerbating temperature control instability. These single heating modes not only prolong the overall heating time and increase energy consumption, but also suffer from poor compatibility and cumbersome operation due to the inability to dynamically adjust the heat source distribution according to the bottle's orientation, failing to meet the needs of modern families for efficient and safe feeding tools.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a bottle warmer that can intelligently adapt to the upright or inverted position of the bottle, achieve multi-path coordinated heating of the side wall and liquid, significantly improve heating efficiency and temperature uniformity, shorten heating time, reduce energy consumption, and enhance the device's adaptability to different feeding scenarios.

[0005] This invention provides a bottle warmer, including a body with a cavity for assembling a baby bottle. The cavity contains a first heating component and a second heating component. The baby bottle can be installed upright or upside down in the cavity. The first heating component heats the side wall of the bottle in either the upright or upside-down position. When the bottle is installed upright in the cavity, the second heating component heats the bottom wall of the bottle. When the bottle is installed upside down in the cavity, the second heating component contacts the liquid inside the bottle and performs contact heating.

[0006] Furthermore, the accommodating cavity is provided with a sealing element; when the baby bottle is inverted and assembled in the accommodating cavity, the sealing element seals the opening end face of the baby bottle, so that the second heating component can contact the liquid inside the baby bottle for contact heating.

[0007] Furthermore, the second heating component includes a heating plate disposed on the bottom wall of the accommodating cavity; when the bottle is assembled upright, the heating plate is in contact with or has a gap fit with the bottom wall of the bottle to achieve heating; when the bottle is assembled upside down, the heating plate directly contacts the liquid inside the bottle for heating.

[0008] Furthermore, the heating plate is equipped with a second NTC component for detecting the temperature of the bottom wall of the bottle or the temperature of the liquid inside the bottle.

[0009] Furthermore, the first heating component includes multiple heating films, which are evenly distributed on the inner wall of the accommodating cavity; when the baby bottle is installed in the accommodating cavity upside down or upright, the multiple heating films adhere to the side wall of the baby bottle for heating.

[0010] Furthermore, the heating film is equipped with a first NTC component for detecting the temperature of the side wall of the baby bottle.

[0011] Furthermore, the present invention also includes a base on which an air pump assembly is mounted; a cylindrical deformable and repositionable elastic element is provided inside the body, a first heating assembly is fixed to the inner wall of the elastic element, and the inner wall of the body and the outer wall of the elastic element together form a sealed and expandable air cavity. The air pump assembly is used to inflate or draw air into the air cavity, so that the elastic element adheres tightly to or leaves the side wall of the bottle as the air pressure changes.

[0012] Furthermore, the air pump assembly includes an air pump, an inlet solenoid valve, an outlet solenoid valve, and an air passage; the inlet solenoid valve connects the air pump inlet to the air passage's inlet branch; the outlet solenoid valve connects the air pump outlet to the air passage's outlet branch; and the main outlet of the air passage is connected to the air chamber via an air pipe.

[0013] Furthermore, the elastic element is provided with multiple deformable and repositionable folds, and the first heating component is fixed between two adjacent folds. The folds expand and contract synchronously with the change of air pressure in the air chamber.

[0014] Furthermore, the elastic element has an upper flange at its upper end and a lower flange at its lower end; the machine body is provided with an upper pressure plate for pressing and fixing the upper flange, and a lower pressure plate for pressing and fixing the lower flange.

[0015] Furthermore, the base has a built-in battery and control board that are electrically connected to each other; the control board is electrically connected to the first heating component, the second heating component, and the air pump component, respectively, for unified control of heating power and air pump charging and pumping operation.

[0016] As can be seen from the above, the present invention provides a bottle warmer, which includes a body and a receiving cavity for assembling a bottle. The receiving cavity contains a first heating component and a second heating component. The bottle can be installed upright or upside down in the receiving cavity. The first heating component heats the side wall of the bottle in either the upright or upside-down position. When the bottle is installed upright in the receiving cavity, the second heating component heats the bottom wall of the bottle. When the bottle is installed upside down in the receiving cavity, the second heating component contacts the liquid inside the bottle for contact heating. By using the first heating component to heat the side wall of the bottle and dynamically switching between bottom wall heating and liquid contact heating modes according to the assembly direction, the invention effectively solves the problems of uneven heating, low efficiency, and poor adaptability caused by a single heating method in the prior art. It can adapt to both upright and upside-down bottle positions, achieving multi-path coordinated heating of the side wall and liquid, significantly improving heating efficiency and temperature uniformity, shortening heating time, reducing energy consumption, and enhancing the device's adaptability to different feeding scenarios. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the bottle warmer of the present invention; Figure 2 This is an assembly diagram of the first heating component and the elastic element of the present invention; Figure 3 This is a cross-sectional view of the elastic element of the present invention; Figure 4 This is a schematic diagram of the first heating component of the present invention; Figure 5 This is an assembly diagram of the air pump assembly and air chamber of the present invention; Figure 6 This is a schematic diagram of the air pump assembly of the present invention; Figure 7 This is a schematic diagram of the heating process when the baby bottle is assembled upside down according to the present invention; Figure 8 This is a schematic diagram of the waterless heating process when the baby bottle is assembled upright according to the present invention; Figure 9 This is a schematic diagram of water heating when the baby bottle of the present invention is assembled upright.

[0018] In the picture: 1. Baby bottle; 2. Body; 21. Upper pressure plate; 22. Lower pressure plate; 3. Elastic component; 31. Deformable and repositionable pleat; 32. Upper flange; 33. Lower flange; 4. Sealing component; 5. First heating assembly; 51. Heating film; 52. First NTC assembly; 6. Second heating assembly; 61. Heating plate; 62. Second NTC assembly; 7. Base; 8. Air pump assembly; 81. Air pump; 82. Inlet solenoid valve; 83. Outlet solenoid valve; 84. Air passage; 9. Battery; 10. Control board. Detailed Implementation

[0019] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0020] Traditional bottle warmers typically use a single heating method when heating bottles, such as heating only the side or bottom of the bottle. This limited heating method restricts the comprehensiveness of heat transfer, resulting in relatively low heating efficiency. It cannot meet the diverse heating needs of different parts of the bottle or the liquid inside, thus affecting the user experience and limiting the applicability of the bottle warmer.

[0021] In this regard, such as Figure 1-9 As shown, this invention proposes a bottle warmer, which includes a body 2. The body 2 has a receiving cavity for assembling a baby bottle 1. The receiving cavity contains a first heating component 5 and a second heating component 6. The baby bottle 1 can be installed upright or upside down in the receiving cavity. The first heating component 5 heats the side walls of the baby bottle 1 in either the upright or upside-down position. When the baby bottle 1 is installed upright in the receiving cavity, the second heating component 6 heats the bottom wall of the baby bottle 1; when the baby bottle 1 is installed upside down in the receiving cavity, the second heating component 6 contacts the liquid inside the baby bottle 1 for contact heating.

[0022] It should be noted that "orthodox assembly" means that bottle 1 is placed in the receiving cavity with its opening facing upwards and its bottom facing downwards (i.e., the conventional placement posture). "Inverted assembly" means that bottle 1 is placed in the receiving cavity with its opening facing downwards and its bottom facing upwards (i.e., the unconventional placement posture).

[0023] More specifically, such as Figure 1 As shown, in this embodiment, the body 2 can be integrally molded from plastic or metal, forming a hollow accommodating cavity inside. The size and shape of the accommodating cavity are designed to accommodate commonly available baby bottles 1. The baby bottle 1 is placed inside the accommodating cavity by gravity or a simple snap-fit ​​structure.

[0024] The accommodating cavity is provided with a first heating component 5 and a second heating component 6. The first heating component 5 can be configured as a heating wire or heating plate surrounding the inner wall of the accommodating cavity, and fixed by thermally conductive adhesive or other means. The second heating component 6 can be configured as a heating plate located at the bottom of the accommodating cavity, and fixed by screws or other means.

[0025] The bottle 1 can be installed upright or upside down in the receiving cavity. The internal structure of the receiving cavity is designed to have enough space so that the bottle 1 can be placed stably whether the opening is upward (upright) or downward (upside down).

[0026] The first heating element 5 is used to heat the side wall of the bottle 1 in its upright or inverted state. The first heating element 5 can be designed as a flexible heating band that is attached to the inner wall of the accommodating cavity. When the bottle 1 is placed in the accommodating cavity, whether it is upright or inverted, the heating band can heat the side wall of the bottle 1 through heat radiation or heat conduction.

[0027] The second heating component 6 is configured as follows: When the bottle 1 is installed upright in the receiving cavity, the second heating component 6 is used to heat the bottom wall of the bottle 1. The second heating component 6 can be a heating element located at the bottom of the receiving cavity. When the bottle 1 is placed upright, its bottom wall is in close contact with the surface of the heating element or maintains a very small gap, transferring heat to the bottom wall of the bottle 1 through heat conduction. When the bottle 1 is installed upside down in the receiving cavity, the second heating component 6 is used to contact the liquid inside the bottle 1 and perform contact heating. The second heating component 6 can be a metal heating block with good thermal conductivity and corrosion resistance, and its surface is designed to extend into the opening of the bottle 1 or other forms that facilitate the achievement of the invention's purpose. When the bottle 1 is installed upside down, the heating block can be directly immersed in the liquid inside the bottle 1, transferring heat through direct contact.

[0028] Therefore, the bottle warmer of the present invention, by setting up a first heating component 5 and a second heating component 6, and supporting the upright or inverted assembly of the bottle 1, achieves multi-dimensional and flexible heating of the side wall, bottom wall, and internal liquid of the bottle 1. This design overcomes the limitation of the single heating method of traditional bottle warmers, significantly improving the efficiency and uniformity of heat transfer. Thus, the bottle warmer can adapt to different heating needs and the posture of the bottle 1, broadening the application scenarios of the device and providing users with a more efficient and convenient bottle warming experience.

[0029] like Figure 1 As shown, the present invention further proposes that the accommodating cavity is provided with a sealing member 4; when the baby bottle 1 is inverted and assembled in the accommodating cavity, the sealing member 4 seals the open end face of the baby bottle 1, so that the second heating component 6 can contact the liquid in the baby bottle 1 for contact heating.

[0030] Specifically, the seal 4 is a device or material used to prevent fluid leakage. It is typically made of an elastic material, capable of deforming under external force to fill gaps and returning to its original shape after the force is removed, thus achieving a sealing function. In this invention, the main function of the seal 4 is to seal the open end face of the bottle 1 when it is inverted during assembly, preventing liquid from overflowing and ensuring that the second heating component 6 can stably contact the liquid for heating. The seal 4 can be implemented in various forms; for example, it can be an O-ring or a lip seal, made of elastic materials such as silicone or rubber, achieving a seal through a tight fit with the open end face of the bottle 1.

[0031] When the bottle 1 is inverted and installed in the receiving cavity, the sealing member 4 can tightly seal the open end face of the bottle 1. This not only prevents leakage of liquid inside the bottle 1, but also creates a stable environment for direct contact between the second heating component 6 and the liquid. For example, the sealing member 4 can be fixed at a specific position in the receiving cavity. When the bottle 1 is inserted inverted, the open end face of the bottle 1 is pressed into or fitted into the sealing member 4, and the seal is achieved through the elastic deformation of the sealing member 4.

[0032] By sealing the opening of the bottle 1, the second heating element 6 can come into contact with the liquid inside the bottle 1 for contact heating. This is a direct result and purpose of the seal 4 fulfilling its core function. By sealing the opening of the bottle 1, it is ensured that the liquid inside the bottle 1 will not overflow, thus allowing the second heating element 6 to be directly immersed in or in close contact with the liquid inside the bottle 1 for efficient contact heating. For example, after the seal 4 seals the opening of the bottle 1, the second heating element 6 (e.g., heating plate 61) is located below the seal 4, directly contacting the sealed liquid inside the bottle 1.

[0033] like Figure 1 , Figure 7-9 As shown, the present invention further proposes a second heating component 6 including a heating plate 61 disposed on the bottom wall of the accommodating cavity; when the baby bottle 1 is assembled upright, the heating plate 61 is in contact with or has a gap fit with the bottom wall of the baby bottle 1 to achieve heating; when the baby bottle 1 is assembled upside down, the heating plate 61 directly contacts the liquid inside the baby bottle 1 for heating.

[0034] Specifically, the heating plate 61 included in the second heating assembly 6 is a heating element capable of converting electrical energy into heat energy. It typically has a flat, disc-shaped structure for easy installation on the bottom wall of the receiving cavity. The heating plate 61 is positioned on the bottom wall of the receiving cavity, allowing it to be located at the bottom when the bottle 1 is upright and at the position in contact with the liquid when the bottle 1 is inverted, thus providing the physical basis for the two subsequent heating modes. When the bottle 1 is upright in the receiving cavity, its bottom wall will be in close contact or with a gap between it and the heating plate 61 on the bottom wall of the receiving cavity. In close contact, the heating plate 61 transfers heat to the bottom wall of the bottle 1 through thermal conduction, thereby heating the liquid inside the bottle 1. This close-fitting heating method ensures that heat can be efficiently and evenly transferred from the heating plate 61 to the bottom of the bottle 1, avoiding heat loss and improving heating efficiency. In a gap-fitting mode, the gap can be for a waterless heating mode (such as...). Figure 8 (as shown) or has a water heating mode (such as) Figure 9(As shown). When the bottle 1 is inverted and assembled in the receiving cavity, its open end face is sealed by the sealing member 4, and the liquid inside the bottle 1 will directly contact the heating plate 61 on the bottom wall of the receiving cavity. The heating plate 61 transfers heat to the liquid through direct contact, realizing contact heating. This direct contact heating method can transfer heat to the liquid more quickly, shortening the heating time, and is especially suitable for scenarios that require rapid heating.

[0035] like Figure 1 , Figure 7-9 As shown, the present invention further proposes that the heating plate 61 is equipped with a second NTC component 62 for detecting the temperature of the bottom wall of the baby bottle 1 or the temperature of the liquid inside the baby bottle 1.

[0036] The heating plate 61 is the core component of the second heating assembly 6, and its main function is to provide heat to heat the bottom wall of the bottle 1 or the liquid inside the bottle 1. The second NTC component 62 is a negative temperature coefficient thermistor, whose resistance decreases as the temperature increases, thereby converting temperature changes into an electrical signal that can be recognized by the control system. The second NTC component 62 can be implemented in various ways. For example, surface mount technology can be used to directly fix the second NTC component 62 to the heating surface of the heating plate 61, and thermally conductive adhesive or welding can be used to ensure close contact between it and the heating plate 61, thereby achieving accurate sensing of the surface temperature of the heating plate 61. Alternatively, the second NTC component 62 can be encapsulated in a high-temperature resistant, thermally conductive protective sleeve and embedded inside the heating plate 61, allowing it to more directly sense the overall temperature changes of the heating plate 61 while avoiding corrosion or damage from direct contact with liquid. In addition, the second NTC component 62 can also be in the form of a flexible circuit board, tightly attached to a specific area of ​​the heating plate 61 to adapt to heating plates 61 of different shapes or sizes, and to provide flexible temperature detection points.

[0037] like Figure 2 and Figure 4 As shown, the present invention further proposes that the first heating component 5 includes a plurality of heating films 51, which are evenly distributed on the inner wall of the accommodating cavity; when the baby bottle 1 is inverted or upright and assembled in the accommodating cavity, the plurality of heating films 51 are attached to the side wall of the baby bottle 1 for heating.

[0038] Specifically, the heating film 51 is a thin heating element characterized by rapid heating, high thermal efficiency, and a certain degree of flexibility. As a specific heating unit of the first heating component 5, these heating films 51 can effectively convert electrical energy into heat energy and directly transfer it to the side wall of the bottle 1.

[0039] To ensure even heat transfer across the entire sidewall surface of the bottle 1, this invention distributes multiple heating films 51 uniformly on the inner wall of the receiving cavity. This uniform distribution can be achieved by arranging the heating films 51 at certain intervals or coverage points along the circumferential and / or axial positions of the inner wall of the receiving cavity. For example, multiple independent heating films 51 can be fixed to the inner wall of the receiving cavity in a ring array, ensuring that each heating film 51 maintains the same spacing; alternatively, a one-piece molded flexible heating film can be used, with its internal heating units arranged in a grid or strip pattern and attached integrally to the inner wall of the receiving cavity. This uniform distribution effectively avoids localized overheating or heating blind spots, thereby significantly improving the uniformity of sidewall heating.

[0040] Furthermore, to maximize heat conduction efficiency and reduce heat loss, multiple heating films 51 are designed to fit against the side wall of the bottle 1 for heating when the bottle 1 is inverted or upright and assembled in the receiving cavity. This fitting heating can be achieved in various ways. For example, the heating films 51 can be fixed to the inner wall of the receiving cavity using an elastic material (such as silicone or rubber), utilizing the deformation capability of the elastic material to ensure the heating films 51 fit tightly against the side wall when the bottle 1 is placed in; alternatively, the inner wall of the receiving cavity itself can be designed to match the shape of the side wall of the bottle 1, with the heating films 51 directly fixed to the inner wall, naturally fitting when the bottle 1 is placed in; or, a mechanical structure, such as a spring-loaded mechanism, can be used to push the heating films 51 closer to the side wall of the bottle 1 after assembly, achieving a tight fit.

[0041] The present invention further proposes that a first NTC component 52 for detecting the temperature of the side wall of the baby bottle 1 is assembled on the heating film 51.

[0042] Specifically, the first NTC component 52 is a negative temperature coefficient thermistor, whose resistance decreases as temperature increases. It features high sensitivity, fast response, and small size, making it ideal for precise temperature measurement. The first NTC component 52 can be mounted on the heating film 51 in various ways. For example, it can be directly and tightly attached to the surface or interior of the heating film 51 using thermally conductive adhesive or welding to ensure direct and accurate sensing of heat transfer between the heating film 51 and the side wall of the bottle 1. Regardless of the mounting method, the primary function of the first NTC component 52 is to acquire real-time temperature data of the side wall of the bottle 1. During operation, the first NTC component 52 converts the sensed temperature changes into electrical signals and transmits these signals to the bottle warmer's control system, such as the control board 10, for subsequent temperature analysis and control.

[0043] like Figure 1As shown, the present invention proposes a bottle warmer, which further includes a base 7 on which an air pump assembly 8 is mounted; the body 2 is provided with a cylindrical deformable and repositionable elastic element 3, the first heating element 5 is fixed to the inner wall of the elastic element 3, and the inner wall of the body 2 and the outer wall of the elastic element 3 together form a sealed and expandable air cavity. The air pump assembly 8 is used to inflate or draw air into the air cavity, so that the elastic element 3 adheres tightly to or moves away from the side wall of the bottle 1 as the air pressure changes.

[0044] Specifically, the base 7 is the overall support structure of the bottle warmer, usually located at the bottom of the bottle warmer, used to support the main components and provide a stable foundation. The base 7 can be made of injection-molded plastic or stamped and bent metal sheet, and its interior usually has reserved space for installing the power module, control circuit board, and other auxiliary functional components. The air pump assembly 8 is a device that can generate air pressure or negative pressure to inflate or depress the air chamber, thereby driving the elastic element 3 to deform. The elastic element 3 is a cylindrical structure with elasticity and deformability, which can deform under external air pressure and return to its original shape after the air pressure is released. The elastic element 3 can be integrally molded from highly elastic materials such as silicone or rubber, or formed into a multi-layer structure by heat sealing or bonding of a plastic film with a certain degree of flexibility. The first heating component 5 can be fixed to the inner wall of the elastic element 3 by means of bonding, snapping, riveting, etc., to ensure that the first heating component 5 can move synchronously with the elastic element 3 when it deforms, and maintain close contact with the side wall of the bottle 1. The sealed, expandable air chamber is a closed space formed by the inner wall of the body 2 and the outer wall of the elastic element 3. The air pressure within this space can be adjusted by the air pump assembly 8, thereby controlling the deformation of the elastic element 3. The volume of the air chamber changes with the deformation of the elastic element 3, thus achieving the expandable function. The air pump assembly 8, by controlling its own operating mode or in conjunction with air circuit control components such as solenoid valves, can deliver gas into the air chamber (inflation) or extract gas from the air chamber (absorption). By changing the air pressure within the air chamber, the elastic element 3 can actively contract inward to fit tightly against the side wall of the bottle 1, or expand outward to move away from the side wall of the bottle 1, thereby adapting to different sizes of bottles 1 and facilitating the handling of the bottles 1. When the air pump assembly 8 inflates the air chamber, the pressure inside the air chamber increases, and the elastic element 3 expands inward under pressure, thus tightly fitting the side wall of the bottle 1; when the air pump assembly 8 draws air from the air chamber, the pressure inside the air chamber decreases, and the elastic element 3 contracts outward under its own elastic restoring force or the action of external atmospheric pressure, thus separating from the side wall of the bottle 1.

[0045] As shown in Figure 6, the present invention further optimizes the air pump assembly 8, which includes an air pump 81, an inlet solenoid valve 82, an outlet solenoid valve 83, and an air passage 84; the inlet solenoid valve 82 connects the air inlet of the air pump 81 with the air inlet branch of the air passage 84, the outlet solenoid valve 83 connects the air outlet of the air pump 81 with the air outlet branch of the air passage 84, and the main outlet end of the air passage 84 is connected to the air chamber via an air pipe.

[0046] The air pump 81 can be a miniature diaphragm pump, which relies on the reciprocating motion of the diaphragm to create a pressure difference to complete gas intake and exhaust; or a miniature piston pump, which uses the reciprocating motion of the piston to change the chamber volume to achieve gas compression and delivery. The intake solenoid valve 82 is an electrically controlled valve responsible for controlling the intake flow. When open, the airflow can be sent into the air passage 84 to complete the inflation of the air chamber; it can be a normally closed valve, closing when not energized and opening when energized, or a two-position three-way solenoid valve, which uses a control signal to switch the airflow and precisely regulate the intake volume. The exhaust solenoid valve 83 is also an electrically controlled valve, used to release gas from the air chamber to complete depressurization and evacuation operations; it can be a normally closed valve, opening when energized during exhaust, or a normally open valve, which maintains rapid depressurization under normal conditions. The air passage 84 is the airflow delivery channel, which can use one-piece molded plastic or rubber tubing, balancing airtightness and flexibility; or a pre-formed flow channel can be directly reserved inside the body 2, reducing the overall assembly space and simplifying the component structure. The intake solenoid valve 82, connected to the air pump inlet and intake branch, forms an inflation path, ensuring stable airflow to the air chamber. For assembly, a flexible hose can be used to accommodate component assembly errors, or a direct-connection structure with an integrated valve body can be adopted to improve sealing reliability. The exhaust solenoid valve 83, in conjunction with the air pump outlet and exhaust branch, forms an exhaust path, smoothly discharging gas from the air chamber. Both connection and assembly methods are compatible with the intake end. The air passage 84 connects to the air chamber via an air tube, forming the core connection structure for air pressure regulation. The air tube is preferably made of flexible material to accommodate positional changes caused by the deformation of the elastic element 3, but it can also be assembled with rigid pipes and sealing joints to improve the stability of the pipeline structure.

[0047] like Figure 2 and Figure 3 As shown, the present invention further proposes that the elastic member 3 is provided with multiple deformable and repositionable pleats 31, and the first heating component 5 is fixed between two adjacent pleats 31. The pleats 31 expand and contract synchronously with the change of air pressure in the air chamber.

[0048] Specifically, the folds 31 refer to the periodic and regular uneven structures on the surface or structure of the elastic element 3. Their design purpose is to allow for deformation in a predetermined manner when subjected to external pressure (such as changes in air pressure within the air chamber), and to return to their original state after the pressure is released. This structure gives the elastic element 3 a larger range of expansion and contraction and a more uniform deformation capability. For example, the folds 31 can adopt a corrugated structure, meaning the wall thickness of the elastic element 3 exhibits continuous wavy undulations in the radial direction, achieving expansion and contraction through the elastic deformation of the material; alternatively, the folds 31 can also be an annular folded structure, meaning the elastic element 3 has multiple annular folded layers along the axial direction. These folded layers can move closer or further apart when compressed, thereby achieving axial expansion and contraction.

[0049] By setting multiple deformable and repositionable pleats 31 on the elastic element 3, sufficient and uniform deformation space is provided for the elastic element 3. When the air pump assembly 8 inflates or inhales the air chamber, these pleats 31 can expand and contract synchronously with the air pressure change in the air chamber, thereby driving the first heating component 5 fixed between two adjacent pleats 31 to move synchronously. This design enables the elastic element 3 to achieve more uniform, controllable and stable deformation during the process of adhering to or leaving the side wall of the bottle 1, effectively avoiding the problems of fatigue damage, uneven deformation or ineffective repositioning caused by unreasonable structural design of traditional elastic elements. Since the first heating component 5 can always maintain a tight fit with the side wall of the bottle 1 with the deformation of the elastic element 3, the contact tightness between the heating component and the side wall of the bottle 1 is ensured, significantly improving the stability and reliability of heating efficiency. In addition, the distribution of pleats 31 also helps to achieve a uniform layout of the first heating component 5 on the side wall of the bottle 1, avoiding local heating blind spots caused by uneven deformation, and further optimizing the overall heating effect.

[0050] The present invention further proposes that the elastic element 3 has an upper flange 32 at its upper end and a lower flange 33 at its lower end; the machine body 2 is provided with an upper pressure plate 21 for pressing and fixing the upper flange 32 and a lower pressure plate 22 for pressing and fixing the lower flange 33.

[0051] Specifically, the upper flange 32 and lower flange 33 refer to structures formed by folding the upper and lower edges of the elastic element 3 outwards or inwards. Their main function is to serve as a mechanical fixation structure between the elastic element 3 and the body 2, while also contributing to a more reliable sealing interface. In one implementation, the flange can be integrally formed from the material of the elastic element 3 body, for example, by injection molding or pressing, ensuring a seamless connection between the flange and the body of the elastic element 3, thereby improving overall strength and sealing performance. In another implementation, the flange can also be achieved by additionally bonding or welding a ring structure to the edge of the elastic element 3, for example, fixing independent rubber or silicone rings to the upper and lower edges of the elastic element 3 to form a flange structure. Furthermore, the flange can also be designed with a specific cross-sectional shape, such as L-shaped, U-shaped, or T-shaped, to optimize its fit with the pressure plate and sealing effect.

[0052] The upper pressure plate 21 and lower pressure plate 22 are structural components located inside the body 2, used to apply pressure to the flanges of the elastic element 3 for fixation and sealing. These pressure plates mechanically clamp the upper flange 32 and lower flange 33 of the elastic element 3 to the inside of the body 2, thereby preventing displacement or detachment of the elastic element 3 during operation and ensuring the airtightness of the air chamber. In one implementation, the upper pressure plate 21 and lower pressure plate 22 can be designed as a ring structure, connected to the internal structure of the body 2 by screws, clips, or other fasteners, thereby uniformly clamping the flanges of the elastic element 3 circumferentially. In another implementation, the pressure plates can also be integrally formed protrusions inside the body 2, and the flanges of the elastic element 3 are fixed by snapping or embedding into these protrusions and supplemented by other fixing methods (such as bonding or heat fusion). In another implementation, the pressure plate can be designed in segments, consisting of multiple arc-shaped or straight segments, which are fixed to the inner wall of the body 2 by screws or other means, and together press the flange of the elastic element 3.

[0053] like Figure 1 As shown, the present invention further proposes that the base 7 has a battery 9 and a control board 10 that are electrically connected to each other; the control board 10 is electrically connected to the first heating component 5, the second heating component 6, and the air pump component 8 respectively, for unified control of heating power and air pump charging and pumping action.

[0054] Specifically, battery 9 serves as the independent power source for the bottle warmer, providing the electrical energy required for its operation. It can take various forms, such as a rechargeable lithium-ion battery pack to support portable use and wireless operation, or a disposable alkaline battery pack for easy replacement and maintenance. The inclusion of battery 9 allows the bottle warmer to operate normally without an external power source, enhancing its flexibility. The control board 10 is the core control unit of the bottle warmer, responsible for receiving user commands, monitoring operating status, and issuing control signals. The electrical connection between battery 9 and control board 10 ensures that control board 10 can stably obtain operating power and monitor the charging and discharging status of battery 9 through a power management circuit. This connection is typically achieved through wires, connectors, and necessary power management chips to ensure the stability and safety of current transmission.

[0055] Furthermore, the electrical connection between the control board 10 and each functional component is the foundation for unified control. This connection can include power lines, signal lines, and data buses. Based on this, the control board 10 can act as a central coordinator, coordinating the management of multiple actuators within the bottle warmer according to preset heating modes, the assembly status of the bottle 1, and real-time temperature feedback. This control mechanism can be based on time-series logic; for example, first activating the air pump assembly 8 to press the elastic element 3 tightly against the bottle 1, then activating the first heating assembly 5 and the second heating assembly 6 for heating. Heating power regulation refers to the control board 10's ability to precisely adjust the output heat of the first heating assembly 5 and the second heating assembly 6 according to actual needs. This can be achieved by changing the on-time ratio of the heating elements (e.g., PWM control), adjusting the supply voltage or current.

[0056] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these modifications are within the scope of protection of the present invention.

Claims

1. A bottle warmer, comprising a body (2), wherein the body (2) has a cavity for assembling a baby bottle (1), characterized in that: The accommodating cavity is provided with a first heating component (5) and a second heating component (6); The baby bottle (1) can be installed upright or upside down in the receiving cavity; The first heating component (5) is used to heat the side wall of the bottle (1) in the upright or inverted state; When the bottle (1) is installed upright in the accommodating cavity, the second heating component (6) is used to heat the bottom wall of the bottle (1); when the bottle (1) is installed upside down in the accommodating cavity, the second heating component (6) is used to contact the liquid inside the bottle (1) and perform contact heating.

2. A bottle warmer according to claim 1, characterized in that: The cavity is provided with a sealing element (4); when the bottle (1) is inverted and assembled in the cavity, the sealing element (4) seals the opening end face of the bottle (1), so that the second heating component (6) can contact the liquid in the bottle (1) for contact heating.

3. A bottle warmer according to claim 2, characterized in that: The second heating component (6) includes a heating plate (61) disposed on the bottom wall of the accommodating cavity; when the bottle (1) is installed upright, the heating plate (61) is in contact with or gapped with the bottom wall of the bottle (1) to achieve heating; when the bottle (1) is installed upside down, the heating plate (61) directly contacts the liquid inside the bottle (1) for heating.

4. A bottle warmer according to claim 3, characterized in that: The heating plate (61) is equipped with a second NTC component (62) for detecting the temperature of the bottom wall of the bottle (1) or the temperature of the liquid inside the bottle (1).

5. A bottle warmer according to claim 1, characterized in that: The first heating component (5) includes multiple heating films (51), which are evenly distributed on the inner wall of the accommodating cavity. When the bottle (1) is installed in the accommodating cavity upside down or upright, the multiple heating films (51) are attached to the side wall of the bottle (1) for heating.

6. A bottle warmer according to claim 5, characterized in that: The heating film (51) is equipped with a first NTC component (52) for detecting the side wall temperature of the baby bottle (1).

7. A bottle warmer according to claim 1, characterized in that: It also includes a base (7), on which an air pump assembly (8) is mounted; the body (2) is provided with a cylindrical deformable and repositionable elastic element (3), the first heating assembly (5) is fixed to the inner wall of the elastic element (3), the inner wall of the body (2) and the outer wall of the elastic element (3) form a sealed and expandable air chamber, and the air pump assembly (8) is used to inflate or draw air into the air chamber, so that the elastic element (3) is in close contact with or away from the side wall of the bottle (1) as the air pressure changes.

8. A bottle warmer according to claim 7, characterized in that: The air pump assembly (8) includes an air pump (81), an inlet solenoid valve (82), an outlet solenoid valve (83), and an air passage (84); the inlet solenoid valve (82) connects the air inlet of the air pump (81) to the inlet branch of the air passage (84); the outlet solenoid valve (83) connects the air outlet of the air pump (81) to the outlet branch of the air passage (84); the main outlet of the air passage (84) is connected to the air chamber through an air pipe.

9. A bottle warmer according to claim 7, characterized in that: The elastic element (3) is provided with multiple deformable and repositionable folds (31). The first heating component (5) is fixed between two adjacent folds (31). The folds (31) expand and contract synchronously with the change of air pressure in the air chamber.

10. A bottle warmer according to claim 7, characterized in that: The elastic element (3) has an upper flange (32) at the upper end and a lower flange (33) at the lower end; the body (2) has an upper pressure plate (21) for pressing and fixing the upper flange (32) and a lower pressure plate (22) for pressing and fixing the lower flange (33).

11. A bottle warmer according to claim 7, characterized in that: The base (7) has a battery (9) and a control board (10) that are electrically connected to each other. The control board (10) is electrically connected to the first heating component (5), the second heating component (6), and the air pump component (8) respectively, and is used to uniformly regulate the heating power and the air pump charging and pumping action.

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