A self-heating corn cup

Abstract

This invention relates to the field of self-heating food container technology and discloses a self-heating corn cup. An outer cup has a detachable lid on its top outer side, with a vent at the top of the lid. A third limiting ring is fixed to the top of the inner wall of the outer cup, and two protrusions are integrally formed on the top of the outer cup, with a vent between the protrusions and the third limiting ring. An inner cup is located inside the outer cup, with an aluminum foil sealing film at its top, and corn kernels are inside the inner cup. A heating chamber is located below the inner cup on the inner side of the outer cup, and an edible water bag, a self-heating pack, and a heated water bag are located inside the heating chamber. A baffle-type exhaust channel is formed by the symmetrical vents at the edge of the cup mouth and the vent at the top of the lid, changing the high-temperature steam generated during heating from vertical upward discharge to first gathering and then directional discharge. This prevents the lid from bursting due to excessive internal pressure and avoids steam directly spraying vertically onto the face and hands, minimizing the risk of burns during use.

Description

Technical Field

[0001] This invention relates to the field of self-heating food container technology, specifically a self-heating corn cup. Background Technology

[0002] The core principle of self-heating food is based on the heating pack reacting chemically with water to generate heat, thereby heating the food. Currently, self-heating food containers on the market usually adopt a double-walled structure. The heating pack is placed at the bottom of the outer cup, and the food to be heated is contained in the inner cup. When in use, water is added to the heating pack to trigger the heating reaction.

[0003] Current self-heating cups typically have only a simple vent on the lid for releasing steam. When the heating element reacts with water, the resulting steam can reach temperatures exceeding 100°C. This high-temperature steam shoots vertically upwards from the vent on the top of the lid, easily hitting the user's face and hands, causing severe burns. Furthermore, if the vent is blocked, the steam pressure inside the cup continues to increase, potentially triggering a small explosion, causing the lid to burst open and scalding hot liquid to splash and injure people. Current self-heating food containers typically only come with food and a heating pack, without any utensils. When consumers eat self-heating food while out on a picnic, at the office, or traveling, they need to find or carry extra utensils such as spoons and forks; otherwise, they can only use whatever they can find or eat with their hands, which is neither hygienic nor convenient. Traditional self-heating cups typically trigger heating by manually tearing open the water bag or by puncturing a single point to release water into the heating element. With the single-point puncture method, the water flow is concentrated in one place, which can easily lead to water accumulation in the heating element while other areas are not adequately wetted, resulting in insufficient heating and low heating efficiency. To address this, a self-heating corn cup is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a self-heating corn cup to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a self-heating corn cup, comprising an outer cup, wherein a cup lid is detachably covered on the outer side of the top of the outer cup, and a vent hole is provided on the top of the cup lid; A third limiting ring is fixed to the top of the inner wall of the outer cup. Two protrusions are integrally formed on the top of the outer cup, and an exhaust hole is provided between the protrusions and the third limiting ring. An inner cup is provided inside the outer cup, and an aluminum foil sealing film is sealed to the top of the inner cup. Corn kernels are placed inside the inner cup. The outer cup has a heating chamber located on the inner side below the inner cup, and the heating chamber is equipped with an edible water bag, a self-heating pack, and a heated water bag. The inner side of the outer cup is provided with a compression component, which is used to puncture the heated water bag; The compression assembly includes a support frame, a horizontal plate fixed to one side of the support frame, a plurality of drainage holes being provided on the horizontal plate, and a plurality of spikes located outside the drainage holes being fixed to one side of the horizontal plate.

[0006] Preferably, the two protrusions are arranged opposite each other along the rim of the outer cup, and the plurality of spikes are distributed in a ring array.

[0007] Preferably, a second limiting ring is fixed to the bottom of the inner wall of the outer cup, and a first limiting ring is fixed to the outer side of the bottom of the support frame.

[0008] Preferably, the support frame is located inside the heating chamber, so that when the inner cup is pressed down, the heated water bag can deform downwards and be punctured by the spikes.

[0009] Preferably, a protective sleeve is adhered to the top of the aluminum foil sealing film, and a spoon is placed inside the protective sleeve.

[0010] Preferably, one end of the vent is connected to the heating chamber and the other end is connected to the air outlet, which is located on the cup lid and connected to the outside.

[0011] Preferably, the top of the outer wall of the inner cup is fitted with a third limiting ring, and the edge of the aluminum foil sealing film is provided with a tear strip.

[0012] Preferably, the air outlet is circular in shape and has a diameter of 3mm-8mm.

[0013] Preferably, when the self-heating pack and the heating water bag are located on both sides of the horizontal plate, after the heating water bag is punctured, water flows through the drain hole to the self-heating pack, causing it to heat up.

[0014] Preferably, the spoon is placed in the gap between the outer cup and the inner cup.

[0015] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: First, the baffle-type exhaust channel formed by the symmetrical exhaust holes on the edge of the cup and the exhaust hole on the top of the cup lid changes the high-temperature steam generated by heating from vertical upward discharge to first gathering and then directional discharge, which prevents the cup lid from bursting open due to excessive internal air pressure, and avoids steam spraying directly vertically onto the face and hands, minimizing the risk of burns during use.

[0016] Second, by setting a protective sleeve with a serrated tear opening in the gap between the outer and inner cups, and pre-installing a food-grade plastic spoon inside, the redundant space of the cup is fully utilized, ensuring that users do not need to find or carry extra tableware when going out for a picnic, working, or traveling. It is ready to eat immediately after opening, clean and hygienic, greatly improving the convenience of a single consumption.

[0017] Third, by using separate sealed packaging for drinking water and heating water, the purity of the water used to soak the corn kernels is ensured, and the amount of water used to activate the heating pack is controllable. Combined with the spikes and drainage holes arranged in a ring on the pressing component, multiple points can be punctured simultaneously when pressed down, ensuring that the water flows quickly and evenly through the drainage holes to wet the self-heating pack, avoiding problems such as local water accumulation or insufficient reaction, and making the heating start up faster and more violent.

[0018] Fourth, the inner cup is sealed with aluminum foil at the top and features a tear-off tab, ensuring a completely airtight seal during transportation and storage to prevent the corn kernels from getting damp or oxidizing. During heating, the inner cup is suspended inside the outer cup, and the heat generated by the self-heating pack is evenly conducted through the bottom and outer walls, creating a three-dimensional heating environment similar to "double-boiling," resulting in more even heating of the corn kernels, a soft, sweet, and fragrant texture, and a freshly cooked flavor in just 5-8 minutes.

[0019] Fifth, by pre-installing two independent sealed water bags with the words "heating water" and "drinking water" printed inside the heating chamber, it achieves "self-contained water source". Users do not need to find an additional water source in any scenario. The operation is simple and convenient, and the water can be consumed immediately after opening the bag. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a schematic diagram of the structure of the cup lid of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the outer cup of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the heating water bag extrusion structure of the present invention; Figure 7 This is a schematic diagram of the structure of the heated water bag of the present invention before it is removed; Figure 8 This is a schematic diagram of the structure at the exhaust port of the present invention; Figure 9 This is a schematic diagram of the spike distribution structure of the present invention; Figure 10 This is a schematic diagram of the aluminum foil sealing film structure of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Outer cup; 2. Cup lid; 3. Vent hole; 4. Protrusion; 5. Protective sleeve; 6. Inner cup; 61. Aluminum foil sealing film; 7. Compression assembly; 71. Support frame; 72. Drain hole; 73. Spike; 74. First limiting ring; 75. Second limiting ring; 76. Horizontal plate; 8. Edible water bag; 9. Self-heating pack; 10. Heated water bag; 11. Third limiting ring; 12. Vent hole. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example Please see Figure 1-10This invention provides a technical solution: a self-heating corn cup, comprising an outer cup 1, with a lid 2 detachably covering the top outer side of the outer cup 1, and a vent 3 on the top of the lid 2; the outer cup 1, lid 2, and inner cup 6 are preferably made of food-grade heat-resistant plastic or pulp molding material; preferably, the lid 2 is connected to the outer cup 1 via a snap-fit ​​structure; a third limiting ring 11 is fixed to the top of the inner wall of the outer cup 1, and two protrusions 4 are integrally formed on the top of the outer cup 1, the two protrusions 4 being arranged opposite each other along the cup opening of the outer cup 1, and a vent 12 is provided between the protrusions 4 and the third limiting ring 11; the vent 12 is a through hole penetrating the side wall of the outer cup 1, it is opened on the cup wall of the protrusions 4, and is located in the heating area of ​​the third limiting ring 11, when the lid 2 is closed on the cup opening of the outer cup 1. The top surfaces of the two protrusions 4 abut against the inner top surface of the cup lid 2, so that the inner top surface of the cup lid 2 and the cup mouth end face form a laterally penetrating steam collection chamber on both sides of the protrusions 4. The water vapor generated during the heating process rises continuously through the annular gap between the outer wall of the inner cup 6 and the inner wall of the outer cup 1. After reaching the cup mouth, it first enters the collection chamber between the protrusions 4 and the cup lid 2 through the exhaust hole 12, and then is directionally discharged through the top exhaust hole 3 under the guidance of the cup lid 2. Since the exhaust hole 12 is opened on the side of the cup mouth, and the exhaust hole 3 is located at the eccentric position of the top of the cup lid, the two do not overlap in the vertical direction. The steam discharge path presents a "side in and top out" bent shape, which truly realizes double-layer exhaust, which can not only smoothly release pressure, but also effectively prevent high temperature steam from spraying vertically upwards onto the user's face. The symmetrical vent holes 12 on the edge of the outer cup 1 cooperate with the vent holes 3 on the cup lid 2 to form a "double-layer venting" path. This ensures smooth steam discharge while preventing steam from being sprayed directly vertically at the user. One end of the vent hole 12 is connected to the heating chamber, and the other end is connected to the vent hole 3. The vent hole 3 is located on the cup lid 2 and is connected to the outside. The vent hole 3 is circular in shape and has a diameter of 3mm-8mm. The water vapor generated during heating gathers upward. The steam rises through the vent holes 12 between the protrusion 4 and the third limiting ring 11 on the outer cup 1, and finally gathers below the cup lid 2. It is then directionally discharged through the vent hole 3 on the top of the cup lid 2 to prevent safety hazards caused by excessive air pressure.

[0026] A protective sleeve 5 is attached to the top of the aluminum foil sealing film 61. A spoon, preferably made of plastic, is placed inside the protective sleeve 5. The edge of the protective sleeve 5 has a serrated tear opening. The spoon is placed in the gap between the outer cup 1 and the inner cup 6. The protective sleeve 5 integrates a plastic-sealed spoon, eliminating the need for additional cutlery and ensuring cleanliness and hygiene. The protective sleeve 5 is made of transparent food-grade plastic film, and a portion of its lower surface is firmly adhered to the central area of ​​the upper surface of the aluminum foil sealing film 61 using food-grade adhesive. The spoon handle and spoon head are completely encapsulated within this cavity. The entire protective sleeve 5, along with the spoon, is bent and pressed into the annular gap between the inner wall of the outer cup 1 and the outer wall of the inner cup 6, utilizing the assembly allowance for concealed storage. The edge of the protective sleeve 5 has a pre-set serrated tear opening. Before eating, the user simply pulls the tear opening and gently tears open the protective film to remove the spoon. The entire process does not require contact with the aluminum foil sealing film 61 or the contents of the inner cup, ensuring hygienic cutlery.

[0027] An inner cup 6 is provided inside the outer cup 1. The top of the inner cup 6 is sealed with an aluminum foil sealing film 61. The top of the outer wall of the inner cup 6 is engaged with the third limiting ring 11. The top outer wall of the inner cup 6 is provided with a positioning flange that protrudes radially outward. The lower surface of the positioning flange rests on the upper surface of the third limiting ring 11 when not in use, so that the inner cup 6 is suspended above the heating chamber. At this time, a safe distance of 3mm-10mm is maintained between the bottom of the inner cup 6 and the upper surface of the lower support frame 71. When the user needs to start heating, press the upper edge of the inner cup 6 or the cup lid 2 with one hand to apply downward axial pressure. The inner cup 6 slides down and its bottom directly presses against the heating water bag 10 and makes it stick to the spike 73. The aluminum foil sealing film 61 has tear-off tabs at its edges; the inner cup 6 uses the aluminum foil sealing film 61, which provides good sealing and facilitates transportation and storage; the inner cup 6 contains corn kernels. Figure 7 The heating water bag 10 and the drinking water bag 8 are in the unremoved state, such as... Figure 6 In preparation for heating after the support frame 71 is flipped over, the support frame 71 is located inside the heating chamber. When the inner cup 6 is pressed down, the heating water bag 10 can be deformed downwards and punctured by the spike 73.

[0028] The outer cup 1 has a heating chamber located on the inner side of the inner cup 6. Inside the heating chamber are a water bag 8, a self-heating pack 9, and a heated water bag 10. The self-heating pack 9 is a sheet-like packaging structure and contains conventional self-heating materials, preferably iron powder, activated carbon, vermiculite, sodium chloride, etc. The water bag 8 and the heated water bag 10 are individually sealed plastic packages. The water bag 8 and the heated water bag 10 are respectively printed with the words "heating water" and "drinking water". Users do not need to prepare their own water source and can be used to activate the self-heating pack 9 and soak corn kernels, respectively. The operation is convenient. Preferably, the water bag 8 has a serrated tear opening on the edge.

[0029] The self-heating pack 9 is a flat sheet that lies at the bottom of the outer cup 1, and its size is slightly smaller than the inner diameter of the cup bottom. The support frame 71 is suspended above the self-heating pack 9 by the cooperation of the first limiting ring 74 and the second limiting ring 75. The surface of each bag is printed with the words "Heating Water" and "Drinking Water" in a conspicuous manner to prevent confusion. The inner side of the outer cup 1 is provided with a compression component 7, which is used to puncture the heating water bag 10. The compression component 7 includes a support frame 71, a horizontal plate 76 is fixed on one side of the support frame 71, the support frame 71 is in the form of a ring, the aforementioned first limiting ring 74 is fixed on the outer bottom, and a second limiting ring 75 is fixed on the bottom of the inner wall of the outer cup 1. In the factory packaging state, the support frame 71 is placed upside down, that is, the horizontal plate 76 is close to the bottom of the outer cup 1, and the spikes 73 face down and extend into the reserved gap between the bottom of the cup and the self-heating pack 9. In this state, the spikes 73 are completely separated from the water bags, preventing accidental punctures caused by transportation vibrations from the outset. When in use, the consumer first removes the inner cup 6, then lifts the support frame 71 entirely from the outer cup 1 and flips it 180° so that the spikes 73 are vertically upward. The support frame 71 is then reinserted into the bottom of the cup, where it is firmly positioned axially. Next, the heated water bag 10 is laid flat on the side of the horizontal plate 76 with the spikes 73, ensuring that each spike 73 is in contact with the bag body. Simultaneously, the self-heating pack 9 is located below the horizontal plate 76, separated from it by the legs or surrounding wall of the support frame 71. This flipping design ensures absolute safety when not in use and reliability of the puncture action during use. The horizontal plate 76 has several drainage holes 72. Several spikes 73 are fixed on one side of the horizontal plate 76, located outside the drainage holes 72. The height of the spikes 73 is greater than the thickness of the heating water bag 10. The spikes 73 are arranged in a ring array. As the inner cup 6 is pressed down, the ring array of spikes 73 on the horizontal plate 76 punctures the heating water bag 10. The water in the bag flows quickly through the drainage holes 72 to the self-heating pack 9 at the bottom. The iron powder, activated carbon, vermiculite and salt in the self-heating pack 9 undergo an oxidation-reduction reaction when they come into contact with water. The preferred ratio of its contents is: 45-55 parts iron powder, 8-12 parts activated carbon, 6-10 parts vermiculite and 2-4 parts sodium chloride. When the heating water bag 10 is punctured, the water flows through the drainage holes 72 and is evenly sprayed onto the self-heating pack 9. The iron powder undergoes a galvanic cell oxidation reaction with oxygen and water in the air under the catalysis of activated carbon and salt.

[0030] It instantly releases a large amount of heat energy, which directly acts on the bottom and outer wall of the inner cup 6. Because the inner cup 6 and the outer cup 1 are made of food-grade heat-resistant materials, the heat is efficiently conducted to the water and corn kernels in the inner cup 6, achieving a physical heating effect similar to double-boiling, and heating can usually be completed within 5-8 minutes.

[0031] A second limiting ring 75 is fixed to the bottom of the inner wall of the outer cup 1, and a first limiting ring 74 is fixed to the outer side of the bottom of the support frame 71. The second limiting ring 75 restricts the position of the first limiting ring 74 to prevent the spike 73 from piercing the bottom of the outer cup 1. When the self-heating pack 9 and the heating water bag 10 are located on both sides of the horizontal plate 76, the heating water bag 10 is pierced and the water flows through the drain hole 72 to the self-heating pack 9 to generate heat.

[0032] Working principle or structural principle: When not in use, all components are in their initial state. The lid 2 on the top of the outer cup 1 is tightly closed by a snap-fit ​​structure. The inner cup 6 is securely suspended inside the outer cup 1 by the cooperation of its top outer wall with the third limiting ring 11. The inner cup 6 contains corn kernels to be heated and is sealed by the aluminum foil sealing film 61 on top. A protective sleeve 5 containing a spoon is placed in the gap between the outer cup 1 and the inner cup 6. In the heating chamber at the bottom inner side of the outer cup 1, below the inner cup 6, a water bag 8, a self-heating pack 9, and a heating water bag 10 are placed. The pressure component 7 is limited within the heating chamber by the cooperation of the first limiting ring 74 at the bottom of its support frame 71 and the second limiting ring 75 at the bottom of the inner wall of the outer cup 1. When the user is ready to eat, first open the lid 2 to separate it from the outer cup 1. Then, pinch the tear strip on the edge of the aluminum foil sealing film 61 of the inner cup 6 and pull it upwards to completely remove the aluminum foil sealing film 61, opening the top opening of the inner cup 6. At this point, the protective sleeve 5 placed in the gap can be removed and its serrated tear opening can be torn open. The spoon can be taken out for later use. Then, the water bag 8 and the heating water bag 10 under the inner cup 6 can be removed in sequence. Next, the user tears open the water bag 8, which is printed with the words "water," and pours all the water into the inner cup 6 to mix with the corn kernels. At this point, the food preparation is complete. The user first reaches into the bottom of the outer cup 1, removes the entire compression component 7, flips it over, and puts it back. At this time, the horizontal plate 76 of the support frame 71 faces upward, and the self-heating pack 9 is directly located at the bottom of the outer cup 1. The user then places the previously removed heating water bag 10 on top of the horizontal plate 76. Then, the user puts the inner cup 6 back into the outer cup 1 and presses the inner cup 6 down. The bottom outer wall of the inner cup 6 will press the heating water bag 10 below, causing it to deform downward and squeeze the spikes 73 on the horizontal plate 76. Since several spikes 73 are arranged in a ring array, they can simultaneously pierce the sealed packaging of the heating water bag 10 from multiple directions and puncture it. After puncturing, the water in the heating water bag 10 will flow out from the puncture and immediately flow down to the bottom of the outer cup 1 through several drainage holes 72 opened on the horizontal plate 76, making full contact with the self-heating pack 9 that has already been placed there. The iron powder, activated carbon and other conventional self-heating materials in the self-heating pack 9 react chemically with water and quickly generate a large amount of heat, thus forming a heat source in the heating chamber.

[0033] While generating heat, the user must immediately replace the previously removed lid 2 back onto the top of the outer cup 1. The heat generated by the self-heating pack 9 in the heating chamber directly acts on the bottom and outer side of the inner cup 6, heating and stewing the corn kernels mixed with drinking water in the inner cup 6. As heating proceeds, the liquid in the inner cup 6 is boiled, generating a large amount of high-temperature steam. The steam rises and enters the cavity between the lid 2 and the outer cup 1 through the vent 12 opened between the top of the inner wall of the outer cup 1, the third limiting ring 11, and the protrusion 4. Finally, all the steam is concentrated and discharged upward from the vent 3 opened at the top of the lid 2, thereby balancing the internal and external air pressure and preventing the pressure inside the cup from being too high.

[0034] Heat for 5-8 minutes until the corn kernels are fully cooked. Then, open the lid 2 again and remove the inner cup 6 from the outer cup 1. You can then easily scoop out the heated corn kernels from the inner cup 6 to complete the self-heating process.

[0035] In summary, the baffle-type exhaust channel formed by the symmetrical exhaust holes 12 on the edge of the cup and the exhaust hole 3 on the top of the cup lid 2 changes the high-temperature steam generated by heating from being discharged vertically upward to being first concentrated and then discharged in a direction. This prevents the cup lid 2 from bursting open due to excessive internal air pressure and avoids steam being sprayed directly vertically onto the face and hands, minimizing the risk of burns during use.

[0036] By setting a protective sleeve 5 with a serrated tear opening in the gap between the outer cup 1 and the inner cup 6, and pre-installing a food-grade plastic spoon inside, the redundant space of the cup body is fully utilized, ensuring that users do not need to find or carry extra tableware when going out for a picnic, working or traveling. It is ready to eat immediately after opening, clean and hygienic, greatly improving the convenience of a single consumption.

[0037] By sealing the drinking water and heating water separately, the purity of the water used to soak the corn kernels is ensured, and the amount of water used to activate the heating pack is controllable. Combined with the spikes 73 and drain holes 72 arranged in a ring on the pressing component 7, multiple points can be punctured simultaneously when pressed down, ensuring that the water flows quickly and evenly through the drain holes 72 to wet the self-heating pack 9, avoiding the problems of local water accumulation or insufficient reaction, and making the heating start up faster and more violent.

[0038] The inner cup 6 is sealed with an aluminum foil film 61 and a tear-off strip at the top, achieving a fully sealed seal to lock in freshness during transportation and storage, effectively preventing the corn kernels from getting damp or oxidizing. When heated, the inner cup 6 is suspended inside the outer cup 1, and the heat generated by the self-heating pack 9 is evenly conducted through the bottom and outer wall, forming a three-dimensional heating environment similar to "double-boiling," making the corn kernels heat more evenly, resulting in a soft, sweet, and fragrant taste. You can enjoy the freshly cooked flavor in 5-8 minutes.

[0039] By pre-sealing two separate water bags inside the heating chamber, each labeled "Heating Water" and "Drinking Water," the system achieves "self-contained water supply." Users no longer need to search for additional water sources in any situation; the operation is simple and convenient, allowing for immediate consumption upon opening the bag.

[0040] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A self-heating corn cup, comprising an outer cup (1), characterized in that, The outer cup (1) is detachably covered with a cup lid (2) on the outer side of the top, and the cup lid (2) has an air vent (3) on the top. The top of the inner wall of the outer cup (1) is fixed with a third limiting ring (11). The top of the outer cup (1) has two protrusions (4) integrally formed. An exhaust hole (12) is provided between the protrusions (4) and the third limiting ring (11). The outer cup (1) has an inner cup (6) inside, and the top of the inner cup (6) is sealed with an aluminum foil sealing film (61). The inner cup (6) contains corn kernels. The outer cup (1) has a heating chamber located on the inner side of the inner cup (6), and the heating chamber has an edible water bag (8), a self-heating pack (9), and a heated water bag (10). The outer cup (1) is provided with a compression component (7) on the inner side, which is used to puncture the heated water bag (10). The compression assembly (7) includes a support frame (71), a horizontal plate (76) is fixed on one side of the support frame (71), a plurality of drainage holes (72) are provided on the horizontal plate (76), and a plurality of spikes (73) located outside the drainage holes (72) are fixed on one side of the horizontal plate (76).

2. The self-heating corn cup according to claim 1, characterized in that, The two protrusions (4) are arranged opposite each other along the mouth of the outer cup (1), and the several spikes (73) are arranged in a ring array.

3. A self-heating corn cup according to claim 1, characterized in that, The bottom of the inner wall of the outer cup (1) is fixed with a second limiting ring (75), and the bottom outer side of the support frame (71) is fixed with a first limiting ring (74).

4. A self-heating corn cup according to claim 1, characterized in that, The support frame (71) is located inside the heating chamber. When the inner cup (6) is pressed down, it can cause the heating water bag (10) to deform downward and be pierced by the spike (73).

5. A self-heating corn cup according to claim 1, characterized in that, A protective sleeve (5) is attached to the top of the aluminum foil sealing film (61), and a spoon is placed inside the protective sleeve (5).

6. A self-heating corn cup according to claim 1, characterized in that, One end of the exhaust port (12) is connected to the heating chamber, and the other end is connected to the air outlet (3). The air outlet (3) is located on the cup lid (2) and is connected to the outside.

7. A self-heating corn cup according to claim 1, characterized in that, The top of the outer wall of the inner cup (6) is fitted with the third limiting ring (11), and the edge of the aluminum foil sealing film (61) is provided with a tear strip.

8. A self-heating corn cup according to claim 1, characterized in that, The air outlet (3) is circular in shape and has a diameter of 3mm-8mm.

9. A self-heating corn cup according to claim 1, characterized in that, When the self-heating pack (9) and the heating water bag (10) are located on both sides of the horizontal plate (76), the heating water bag (10) is punctured and water flows through the drain hole (72) to the self-heating pack (9) to generate heat.

10. A self-heating corn cup according to claim 5, characterized in that, The spoon is placed in the gap between the outer cup (1) and the inner cup (6).

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