A feeding bottle with heating function

The bottle design, which uses a refrigerant heating cycle and sensor control, solves the problems of uneven heating and safety, achieving uniform and safe heating of breast milk, thus improving nursing efficiency and the comfort of newborns.

CN224307587UActive Publication Date: 2026-06-02THE 910TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 910TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Filing Date
2025-01-21
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing heated baby bottles suffer from uneven heating, low efficiency, and inconvenience in carrying them. In particular, heating breast milk in the NICU can easily cause burns and loss of nutrients, affecting nursing efficiency and the health of newborns.

Method used

The system employs a refrigerant heating method, where a heating wire heats the refrigerant, causing it to vaporize and flow along the cup wall. After liquefaction, the refrigerant flows back for heating, forming a circulating heating system. Combined with a liquid level sensor and a temperature sensor, the heating process is controlled to ensure uniform heating and safety.

Benefits of technology

It achieves uniform heating of breast milk in the bottle, improves heating efficiency and safety, reduces the risk of burns, and enhances nursing efficiency and newborn comfort.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224307587U_ABST
    Figure CN224307587U_ABST
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Abstract

This utility model discloses a baby bottle with a heating function, including a nipple, a handle, a cup body, and a heating base. The handle is movably fitted onto the upper part of the cup body, and the nipple, with a movable cap, is positioned at the opening of the cup body. The cup body consists of an inner liner, a heat insulation layer, and an outer liner, which are welded together using polymer diffusion welding. The interior of the inner liner forms a liquid storage cavity for storing milk. The heat insulation layer is located below the bottom of the inner liner and has a vacuum cavity structure. A refrigerant cavity for storing refrigerant is formed between the inner and outer liner. The heating base is fitted onto the bottom of the cup body and is used to heat the refrigerant in the refrigerant cavity. This utility model achieves a uniform temperature increase across the entire cup wall, uniformly heating the breast milk inside the cup body, avoiding excessively high local heating temperatures, and improving the heating effect of the baby bottle.
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Description

Technical Field

[0001] This utility model relates to the design and application of heated baby bottles, and more specifically to a baby bottle with a heating function. Background Technology

[0002] In clinical nursing, newborns cannot be fed directly after being admitted to the NICU. The breast milk is refrigerated and stored. When needed, it is warmed using a water bath method before feeding. When warming breast milk in a water bath, the refrigerated breast milk is first inverted into a bottle, which is then placed in warm water at 50-60 degrees Celsius for a water bath. The bottle is shaken frequently to ensure even heating. It is also necessary to check periodically to ensure the heating is complete, avoiding prolonged heating which could cause the loss of antibodies and nutrients in the breast milk.

[0003] Water bath heating requires a lot of equipment and items, which is inconvenient to carry. The water temperature is also difficult to control precisely, which can easily cause burns or damage the antibodies and nutrients in breast milk due to excessively high water temperature. At the same time, the water bath heats up slowly, requiring manual temperature testing and stirring, which increases the workload of nursing care and affects the efficiency of nursing care. In addition, newborns have frequent needs, and long waiting times for feeding can easily lead to crying, affecting the development of the newborn's vocal cords and the rest of other newborns in the NICU.

[0004] Chinese Patent: A Baby Bottle with Heating Function, Authorization Announcement No.: CN213723647U. This patent document discloses the specific structure and usage of existing heated baby bottles. As can be seen from the disclosed patent content, the heated baby bottle of this solution can transfer heat to the milk in the bottle by setting a heating plate to heat the milk, thereby realizing the heating function of the baby bottle itself, which is convenient for heating the milk and also convenient for carrying the baby bottle.

[0005] However, existing baby bottles are heated directly through a heating element at the bottom of the bottle. This heating method can easily cause the bottom of the bottle to heat up too much, resulting in uneven heating and low heating efficiency, which affects the heating of breast milk.

[0006] This technical solution further improves and perfects the structure of existing heated baby bottles by changing its heating method. It uses a heating wire to heat the refrigerant. After the refrigerant absorbs heat and vaporizes, the airflow flows upward along the cup wall channel to the cooler part of the cup body, where it releases heat and liquefies. After liquefaction, it flows back to the bottom of the cup and is heated by the heating wire again. This cycle is repeated to ensure that the temperature of the entire cup wall rises evenly, so as to heat the breast milk in the cup body evenly and avoid excessive local heating temperature, thereby improving the heating effect of the baby bottle. Utility Model Content

[0007] The present invention discloses a baby bottle with a heating function, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the prior art.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A baby bottle with a heating function includes a nipple, a handle, a cup body, and a heating base. The handle is movably fitted onto the upper part of the cup body, and the nipple is movably fitted onto the opening of the cup body. The cup body is composed of an inner liner, a heat insulation layer, and an outer liner, which are respectively welded by polymer diffusion welding. The interior of the inner liner forms a liquid storage cavity for storing milk. The heat insulation layer is located below the bottom of the inner liner and has a vacuum cavity structure. A refrigerant cavity for storing refrigerant is formed between the inner liner and the outer liner. The heating base is fitted onto the bottom of the cup body and is used to heat the refrigerant in the refrigerant cavity.

[0010] Furthermore, the refrigerant cavity includes a refrigerant cavity in the cup wall and a refrigerant cavity in the cup bottom, and the refrigerant cavity in the cup wall and the refrigerant cavity in the cup bottom are connected.

[0011] Furthermore, the outer liner is provided with a welding area, an arched area, and a storage area. The welding area is tightly fitted to the inner liner and is welded by polymer diffusion welding. The arched area and the surface of the inner liner form a refrigerant cavity in the cup wall for refrigerant movement. The storage area and the insulation layer form a refrigerant cavity at the bottom of the cup for refrigerant storage.

[0012] Furthermore, the heating base is equipped with a heating wire, a temperature sensor, a liquid level sensor, a control circuit board, and a base. The heating wire is used to heat the refrigerant in the refrigerant chamber. The temperature sensor is used to provide feedback on the temperature of the milk stored in the inner tank's liquid storage chamber. The liquid level sensor is used to detect the liquid level of the refrigerant in the refrigerant chamber. The control circuit board is connected to the heating wire, the temperature sensor, and the liquid level sensor respectively. A control switch is provided on the base.

[0013] Furthermore, the insulation layer is filled with a layer of insulation material.

[0014] As can be seen from the above description and explanation of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0015] Advantage 1: This utility model utilizes the refrigerant to vaporize upon heating and the airflow to liquefy upon cooling, so that the bottle cup wall is heated evenly, achieving uniform heating of the breast milk inside the cup, preventing uneven heating and achieving better heating effect.

[0016] Advantage 2: By setting up a liquid level sensor, this utility model can monitor the refrigerant level in a timely manner, preventing abnormal situations from causing the breast milk heating temperature to be too high, thus improving the safety of heating.

[0017] Advantage 3: By setting up a heat insulation layer, this utility model can prevent the liquid refrigerant from directly heating the bottom of the cup after it is heated and vaporized, and at the same time prevent the liquid refrigerant from directly heating the milk at the bottom of the cup, which would cause uneven heating of the breast milk in the cup. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of each part of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the cup body of this utility model.

[0021] Figure 4 This is a schematic diagram showing the unfolded structure of each part of the cup body of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the outer liner of this utility model.

[0023] Figure 6 This is a front structural diagram of the present invention.

[0024] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure along the AA direction.

[0025] Figure 8 This is a side view of the structure of this utility model.

[0026] Figure 9 yes Figure 8 A schematic diagram of the cross-sectional structure along the BB direction.

[0027] Figure 10 This is a schematic diagram of the front structure of the cup body of this utility model.

[0028] Figure 11 yes Figure 10 A schematic diagram of the cross-sectional structure along the CC direction.

[0029] Figure 12 This is a schematic diagram of the structure of the heating base of this utility model.

[0030] Figure 13 This is a schematic diagram showing the unfolded structure of the heating base of this utility model.

[0031] Figure 14 This is a front view structural diagram of the heating base of this utility model.

[0032] Figure 15 This is a bottom view of the heating base of this utility model.

[0033] Figure 16 This is a top view of the heating base of this utility model.

[0034] Among them, nipple 1, gripper 2, cup body 3, inner liner 31, heat insulation layer 32, outer liner 33, storage area 331, arched area 332, welding area 333, heating base 4, heating wire 41, temperature sensor 42, liquid level sensor 43, control circuit board 44, base 45, liquid storage chamber 5, vacuum chamber 6, refrigerant chamber 7, cup wall refrigerant chamber 71, and cup bottom refrigerant chamber 72. Detailed Implementation

[0035] The specific embodiments of this utility model will be further described and illustrated below with reference to the accompanying drawings.

[0036] like Figures 1 to 16 As shown, a baby bottle with a heating function includes a nipple 1, a handle 2, a cup body 3, and a heating base 4. The handle 2 is movably fitted onto the upper part of the cup body 3. The nipple 1 is movably covered at the opening of the cup body 3. The cup body 3 is composed of an inner liner 31, a heat insulation layer 32, and an outer liner 33. The inner liner 31, heat insulation layer 32, and outer liner 33 are respectively welded by polymer diffusion welding. The interior of the inner liner 31 forms a liquid storage cavity 5 for storing milk. The heat insulation layer 32 is located below the bottom of the inner liner 31. The heat insulation layer 32 has a vacuum cavity 6 structure and is filled with a heat insulation material layer. A refrigerant cavity 7 for storing refrigerant is formed between the inner liner 31 and the outer liner 33. The refrigerant cavity 7 includes a cup wall refrigerant cavity 71 and a cup bottom refrigerant cavity 72, which are connected.

[0037] By setting the heat insulation layer 32, it is possible to prevent the liquid refrigerant from vaporizing and directly heating the bottom of the cup, and at the same time, to prevent the liquid refrigerant from heating the milk at the bottom of the cup, which would cause uneven heating of the breast milk in the cup.

[0038] The outer liner 33 is provided with a welding area 333, an arched area 332 and a storage area 331. The welding area 333 is closely attached to the inner liner 31 and is set by polymer diffusion welding. The arched area 332 and the surface of the inner liner 31 form a refrigerant cavity 71 for refrigerant movement in the cup wall. The storage area 331 and the heat insulation layer 32 form a refrigerant cavity 72 for refrigerant storage in the bottom of the cup.

[0039] like Figures 1 to 16As shown, the heating base 4 is fitted and installed at the bottom of the cup body 3. The heating base 4 is used to heat the refrigerant in the refrigerant chamber 7. The heating base 4 is provided with a heating wire 41, a temperature sensor 42, a liquid level sensor 43, a control circuit board 44, and a base 45. The heating wire 41 is used to heat the refrigerant in the refrigerant chamber 7. The temperature sensor 42 is used to provide feedback on the temperature of the milk stored in the liquid storage chamber 5 of the inner liner 31. The liquid level sensor 43 is used to detect the liquid level of the refrigerant in the refrigerant chamber 7. The control circuit board 44 is connected to the heating wire 41, the temperature sensor 42, and the liquid level sensor 43 respectively. The base 45 is provided with a control switch.

[0040] By setting up a liquid level sensor 43, the liquid level of the refrigerant can be monitored in a timely manner to prevent abnormal situations from causing the breast milk heating temperature to be too high, thereby improving the safety of heating.

[0041] How to use this utility model:

[0042] First, breast milk is placed in the liquid storage chamber 5 of the inner liner 31 of the cup body 3. Then, the control switch on the base 45 is turned on. When the temperature sensor 42 senses that the temperature of the breast milk in the liquid storage chamber 5 is low, the control circuit board 44 controls the heating wire 41 to start working. The heating wire 41 starts heating and heats the refrigerant in the refrigerant chamber 72 at the bottom of the cup. The liquid refrigerant vaporizes after being heated. The hot air flows along the refrigerant chamber 71 on the cup wall and liquefies after contacting the inner liner 31. The liquefied liquid flows back along the refrigerant chamber 71 on the cup wall to the refrigerant chamber 72 at the bottom of the cup, and is then heated again by the heating wire. This cycle repeats until the temperature sensor 42 reports that the breast milk temperature has reached the standard, at which point the heating wire 41 stops working.

[0043] This invention utilizes the refrigerant to vaporize upon heating and the airflow to liquefy upon cooling, thereby evenly heating the bottle cup wall and achieving uniform heating of the breast milk inside the cup. This prevents uneven heating and achieves better heating results.

[0044] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A baby bottle with a heating function, characterized in that: The device includes a nipple, a handle, a cup body, and a heating base. The handle is movably fitted onto the upper part of the cup body. The nipple is movably fitted onto the opening of the cup body. The cup body consists of an inner liner, a heat insulation layer, and an outer liner, which are welded together by polymer diffusion welding. The interior of the inner liner forms a liquid storage cavity for storing milk. The heat insulation layer is located below the bottom of the inner liner and has a vacuum cavity structure. A refrigerant cavity for storing refrigerant is formed between the inner and outer liner. The heating base is fitted onto the bottom of the cup body and is used to heat the refrigerant in the refrigerant cavity.

2. A baby bottle with a heating function according to claim 1, characterized in that: The refrigerant chamber includes a refrigerant chamber in the cup wall and a refrigerant chamber in the cup bottom, and the refrigerant chamber in the cup wall and the refrigerant chamber in the cup bottom are connected.

3. A baby bottle with a heating function according to claim 2, characterized in that: The outer liner is provided with a welding area, an arched area and a storage area. The welding area is closely fitted to the inner liner and is set by polymer diffusion welding. The arched area and the surface of the inner liner form a refrigerant cavity in the cup wall for refrigerant movement. The storage area and the insulation layer form a refrigerant cavity at the bottom of the cup for refrigerant storage.

4. A baby bottle with a heating function according to claim 1, characterized in that: The heating base is equipped with a heating wire, a temperature sensor, a liquid level sensor, a control circuit board, and a base. The heating wire is used to heat the refrigerant in the refrigerant chamber. The temperature sensor is used to provide feedback on the temperature of the milk stored in the inner tank's liquid storage chamber. The liquid level sensor is used to detect the liquid level of the refrigerant in the refrigerant chamber. The control circuit board is connected to the heating wire, the temperature sensor, and the liquid level sensor respectively. A control switch is provided on the base.

5. A baby bottle with a heating function according to claim 1, characterized in that: The insulation layer is filled with a layer of insulation material.