Portable milk self-heating jacket

Abstract

The utility model relates to the field of portable daily products, in particular to a portable milk self-heating sleeve, which comprises a sleeve body, a placing layer arranged inside the sleeve body, a tearing-containing layer arranged on the front side of the sleeve body, a limiting piece arranged on the left side of the upper portion of the sleeve body, a separating layer arranged on the sleeve body, a plurality of air vents arranged on the separating layer, and air entering the placing layer through the air vents. A heating layer is arranged in the sleeve body, and a handheld area is arranged on the sleeve body. The heating layer is made of food-grade isolation materials, contact between iron powder and milk is thoroughly blocked, meanwhile, the surface temperature is controlled within a safety threshold value through the outer layer heat insulation design, and the scalding risk is avoided through double protection. The whole structure is light in weight, foldable and suitable for multi-scene portable use, and a reaction product is environment-friendly ferric oxide which is free of pollution and easy to recycle.

Description

Technical Field

[0001] This utility model relates to the field of portable daily necessities, and in particular to a portable self-heating milk sleeve. Background Technology

[0002] In today's fast-paced life, the need for hot milk is widespread in scenarios such as morning commutes, outdoor camping, and late-night overtime work. However, traditional heating methods face many inconveniences. For example, office workers are often forced to drink cold milk because they cannot find a microwave oven, which can cause gastrointestinal discomfort. Outdoor enthusiasts need to carry bulky insulated equipment or gas stoves, which increases the burden on their luggage. When students heat milk during breaks in winter, queuing to use public hot water is time-consuming and can easily cause burns. At the same time, the surface temperature of the packaging can easily become too high during the conventional heating process, posing a risk of burns.

[0003] Therefore, a portable self-heating milk sleeve is being developed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of existing products, this utility model provides a portable self-heating milk jacket.

[0005] The technical solution of this utility model is: a portable self-heating milk sleeve, comprising a sleeve body, an inner placement layer provided inside the sleeve body, the top of the placement layer having an flared structure for easy milk delivery, a tear-resistant layer provided on the front side of the sleeve body, a limiting member provided on the upper left side of the sleeve body for locking the tear-resistant layer, a partition layer provided on the sleeve body with multiple vents, air entering the placement layer through the vents, and releasing heat energy by reacting iron powder with air to undergo an oxidation-reduction reaction, a heating layer provided inside the sleeve body for placing iron powder, and a handheld area provided on the sleeve body.

[0006] As an improvement to the above solution, the tear-resistant layer is equipped with a support tab to facilitate the user in quickly tearing the tear-resistant layer.

[0007] As an improvement to the above solution, the packaging material of the heating layer has an insulating effect, separating the heat-releasing substance from the placement layer.

[0008] As an improvement to the above solution, an anti-slip pad is provided on the handheld area to facilitate user handling.

[0009] As an improvement to the above solution, a heat insulation layer is provided at the bottom of the sleeve.

[0010] By adopting the above technical solution, the advantages of this utility model are as follows:

[0011] 1. This utility model significantly improves heating efficiency and safety through the synergistic effect of iron powder oxidation reaction and multi-layer functional structure. The flared placement layer enables quick and accurate positioning of the milk carton. Combined with the tear-resistant layer with auxiliary sheet and limiting component, it ensures smooth one-time tearing operation and avoids oxygen leakage caused by repeated opening and closing. The microporous breathable membrane separation layer precisely regulates oxygen flow, so that iron powder is continuously and stably oxidized.

[0012] 2. The heating layer of this invention uses food-grade insulating material to completely prevent iron powder from contacting the milk. Simultaneously, the outer heat-insulating design controls the surface temperature within a safe threshold, providing double protection against the risk of burns. The overall structure is lightweight and foldable, suitable for portable use in various scenarios. The reaction product is environmentally friendly iron oxide, which is pollution-free and easily recyclable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0015] Figure 3 This is a partial three-dimensional structural diagram of the present invention.

[0016] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0017] The labels in the diagram are as follows: 1. Sleeve body, 2. Placement layer, 3. Tear-resistant layer, 4. Limiting element, 5. Separator layer, 6. Vent, 7. Insulation layer, 8. Heating layer, 9. Handheld area. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] A portable self-heating milk jacket, such as Figures 1-4As shown, the device includes a sleeve 1, an inner storage layer 2, and a flared top for easy milk delivery. A tear-resistant layer 3 is located on the front of the sleeve 1, with a support tab for quick tearing. A limiting element 4 is located on the upper left side of the sleeve 1 to secure the tear-resistant layer 3. A partition layer 5 with multiple ventilation holes 6 allows air to enter the storage layer 2 through the ventilation holes 6, where iron powder reacts with the air to produce an oxidation-reduction reaction, releasing heat. A heat insulation layer 7 is located at the bottom of the sleeve 1, and a heating layer 8 is located inside the sleeve 1 for storing iron powder. The packaging material of the heating layer 8 provides an insulating effect, separating the heat-releasing material from the storage layer 2. A handheld area 9 with an anti-slip pad is located on the sleeve 1 for easy handling.

[0020] It should be noted that the working principle of this portable milk self-heating sleeve is based on the exothermic characteristics of the iron powder oxidation-reduction reaction. Through the synergistic effect of structural design and functional partitioning, a safe and efficient self-heating function is achieved. The user first vertically places the milk into the flared placement layer 2 at the top of the sleeve 1. Its gradually expanding structure facilitates precise positioning. Then, the user tears open the support piece of the front tear-resistant layer 3, releasing the retaining piece 4 from its latch, allowing the tear-resistant layer 3 to be torn open directly. At this time, external air enters the heating layer 8 through the porous vent 6 on the partition layer 5. The high-purity iron powder (purity ≥99.5%, particle size 80-120μm) encapsulated inside the heating layer 8 comes into contact with oxygen in the air through the vent. First, trace amounts of moisture from the environment are adsorbed on the surface of the iron powder, forming a thin electrolyte film, which promotes the oxidation-reduction reaction between iron and oxygen. The specific process is as follows: iron atoms lose electrons in the humid microenvironment to generate Fe²⁺ (Fe → Fe²⁺ + 2e⁻), and oxygen molecules accept electrons on the iron surface and are reduced to O²⁻ (O₂ + 2e⁻). The reaction proceeds from 4e⁻ to 2O²⁻, followed by the combination of Fe²⁺ and O²⁻ to form ferrous oxide, which is further oxidized to Fe₃O₄ or Fe₂O₃. The current generated by electron transfer during the reaction forms a micro-current loop through the contact between iron powder particles, continuously accelerating the reaction process and releasing a large amount of heat energy. To regulate the reaction rate, 3%-5% activated carbon is premixed into the iron powder as a catalyst to promote oxygen diffusion by increasing the specific surface area. Simultaneously, 1%-2% sodium chloride is added as an electrolyte to lower the activation energy of water molecules, allowing the reaction to be triggered at room temperature. This exothermic process forms a self-sustaining cycle within the sealed heating layer, with oxygen continuously replenished through the gradient pressure difference at the vents until the iron powder is completely oxidized, ensuring that the heat is generated at a constant level. A stable temperature rise rate of 50-60℃ / min ensures uniform heating of milk. The heat generated by the reaction is transferred to the milk carton in layer 2 via a heat-conducting material, heating 250mL of liquid to 55-60℃ in approximately 3-5 minutes. Layer 5 uses a microporous breathable membrane for selective gas permeation, ensuring oxygen supply while preventing iron powder from contacting the milk packaging. The silicone anti-slip pad in the handheld area 9 increases the coefficient of friction to improve grip stability. Throughout the heating process, the multi-layered composite structure of the various functional areas within the sleeve 1 forms a physical isolation barrier. The outer insulation material uses a food-grade silicone foam composite aluminized film to control the surface temperature below 45℃, preventing burns. Once the reaction is complete, the oxidation products are stable and free of contamination.

[0021] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A portable self-heating milk jacket, characterized in that: The device includes a sleeve (1), inside which is a placement layer (2), the top of which is flared to facilitate the feeding of milk. A tear-resistant layer (3) is provided on the front side of the sleeve (1), and a limiting member (4) is provided on the upper left side of the sleeve (1). The limiting member (4) is used to snap the tear-resistant layer (3). A partition layer (5) is provided on the sleeve (1), and multiple vents (6) are opened on the partition layer (5). Air enters the placement layer (2) through the vents (6), and the iron powder reacts with the air to produce an oxidation-reduction reaction, releasing heat energy. A heating layer (8) is provided inside the sleeve (1) for placing iron powder. A handheld area (9) is provided on the sleeve (1).

2. A portable self-heating milk jacket according to claim 1, characterized in that: The tear-resistant layer (3) has a support piece to facilitate the user to quickly tear the tear-resistant layer (3).

3. A portable self-heating milk jacket according to claim 1, characterized in that: The packaging material of the heating layer (8) has an insulating effect, separating the heat-releasing substance from the placement layer (2).

4. A portable self-heating milk jacket according to claim 1, characterized in that: The handheld area (9) is provided with an anti-slip pad for easy handling by the user.

5. A portable self-heating milk jacket according to claim 1, characterized in that: The bottom of the sleeve (1) is provided with a heat insulation layer (7).

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