Prefabricated dish heating packaging box

Abstract

The invention belongs to the field of food packaging, and particularly relates to a prefabricated vegetable heating packaging box. The invention provides a prefabricated vegetable heating packaging box which comprises a box body, an isolating membrane arranged on the box body and used for dividing the interior of the box body into a food material area and an operation area, and a turning piece arranged on the inner side wall of the box body, located in the food material area and used for turning food. Through the arrangement of the stirring piece, internal food can be effectively stirred through the stirring piece in the heating and rotating process, so that the food is evenly heated, and the good taste is achieved.

Description

Technical Field

[0001] The invention belongs to the field of food packaging, and in particular relates to a pre-prepared food heating packaging box. Background Art

[0002] With the popularity of modern fast-paced lifestyles, pre-prepared meals have gradually become an important choice for people's daily diet due to their convenience and efficiency. However, there are still many shortcomings in the heating method and packaging design of pre-prepared meals. Traditional pre-prepared meal packaging boxes often have the problem of uneven heating during the heating process. Existing packaging boxes are mostly made of ordinary plastic materials, which may release harmful substances when heated at high temperatures, posing food safety risks. At the same time, these materials have poor durability and environmental protection, and it is difficult to meet the needs of modern food packaging.

[0003] A Chinese invention patent with patent publication number CN109502193A and publication date 2019.3.22 discloses a heating package and a preparation method thereof, and a food heating method, wherein the heating package comprises: a container; and an electromagnetic induction heating body provided on the container, which is suitable for heating the food in the container.

[0004] The general usage and advantages of a heating package in this Chinese invention patent are as follows: by combining an electromagnetic induction heating body with food packaging, the ingredients can be placed in a container in advance or later, and a little seasoning can be added to heat it on an induction cooker. Users can enjoy healthy and hygienic food without much cooking experience.

[0005] However, in actual use, the heating package still has at least the following shortcomings, in other words, the technical problem to be solved by the present invention: it cannot ensure uniform heating of the dishes during the heating process, which easily causes local overheating and partial inedibility, greatly affecting the diner's experience.

[0006] Therefore, in summary, it is necessary to develop a pre-prepared meal packaging box with uniform heating and safe materials to solve the problems of this type. Summary of the invention

[0007] The present invention provides a pre-prepared food heating packaging box, comprising a box body, an isolation membrane arranged on the box body for dividing the interior of the box body into two areas, a food area and an operation area, and a turning piece arranged on the inner side wall of the box body and located in the food area for turning food, so that: the present invention can effectively stir the internal food through the turning piece during the heating and rotating process, so that the food is evenly heated and has a good taste.

[0008] Therefore, the present invention overcomes the shortcomings of the prior art and provides a pre-prepared food heating packaging box, including a box body, an isolation membrane arranged on the box body and used to divide the interior of the box body into two areas, a food area and an operation area, and a turning piece arranged on the inner side wall of the box body and located in the food area for turning food.

[0009] A further preferred technical solution is that the flap is configured as a protrusion extending toward the center of the box body.

[0010] A further preferred technical solution is that: there are multiple flaps, which are evenly distributed on the inner wall of the box body.

[0011] A further preferred technical solution is that the box body includes a magnetic induction heat-conducting layer, an anti-scalding layer arranged on the outside of the magnetic induction heat-conducting layer, and a safety layer arranged on the inside of the magnetic induction heat-conducting layer.

[0012] A further preferred technical solution is that it also includes a packaging film arranged on the top of the box body, and a piercing member arranged on a side of the packaging film close to the isolation film.

[0013] A further preferred technical solution is that: the diameter of the piercing member gradually decreases in the direction approaching the isolation membrane, and the height of the piercing member is smaller than the height of the operating area.

[0014] A further preferred technical solution is that a pre-indentation is provided at the connection between the packaging film and the box body.

[0015] A further preferred technical solution is that the flap is a cone with its tip facing the center of the box body.

[0016] A further preferred technical solution is that the flap is a hemispherical body.

[0017] A further preferred technical solution is that the flap is a cuboid.

[0018] The beneficial effects of the present invention are at least that: the food is heated evenly during the heating process, local overheating or incomplete heating is avoided, the method of use is simple, quick, safe, and has a good user experience, and further, a suitable packaging box structure can be selected according to different foods, which has a better heating uniformity effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0021] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0022] In the figure, the meanings of the reference numerals are as follows:

[0023] Food area a, operation area b;

[0024] Box body 1, isolation film 2, flipping piece 3, packaging film 4, piercing piece 5;

[0025] A magnetic induction heat-conducting layer 11, an anti-scalding layer 12, and a safety layer 13. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. The following descriptions are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention.

[0027] Directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" respectively refer to the direction toward or away from the geometric center of a specific component. They are relative concepts and may change accordingly according to their different positions and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0028] Embodiment 1

[0029] As attached Figures 1-2 As shown, a pre-prepared food heating packaging box includes a box body 1, an isolation membrane 2 arranged on the box body 1 and used to divide the interior of the box body 1 into two areas, a food area a and an operation area b, and a turning piece 3 arranged on the inner side wall of the box body 1 and located in the food area a for turning food.

[0030] In this embodiment, the box body is preferably a cylinder, so that the packaging box has a more uniform effect during the rotational heating process. The isolation film 2 is preferably an aluminum film. Heat sealing or bonding technology is used to ensure that the food area a remains sealed during transportation and storage, blocking the outside air and ensuring the freshness of the food. The existence of the operation area b ensures that the isolation film 2 will not be damaged by external forces under the protection of the surrounding side of the box body 1, thereby increasing the safety of the packaging and the convenience of transportation; the flipping piece 3 is arranged on the inner wall of the box body 1 for stirring and stir-frying the food during the rotational heating process. It is preferably an integrally formed arrangement with the inner wall of the box body, and an arc transition is used at the connection. In order to enhance the structural strength, when the packaging box is placed on any rotatable heating device, or the two ends of the box body are rotated only under manual action, due to the presence of the flipping member 3, the food will slide and roll along the rotation direction during the rotation of the box body. The flipping member 3 hinders the sliding of some ingredients along the box body, so that under the same rotational external force, the internal food has different movement trajectories and speeds. Under the action of gravity, the ingredients are continuously "lifted and dropped" to achieve stir-frying, so that the ingredients are fully stirred. The flipping member 3 can be a movable part with its own driving force, or it can be a fixed part that passively produces a flipping effect on the ingredients during rotation.

[0031] As a preferred embodiment of the present invention, the box body 1 includes a magnetic induction heat-conducting layer 11 , an anti-scalding layer 12 arranged on the outside of the magnetic induction heat-conducting layer 11 , and a safety layer 13 arranged on the inside of the magnetic induction heat-conducting layer 11 .

[0032] In this embodiment, in order to avoid the release of harmful substances from materials during high-temperature heating, the packaging box meets the food contact safety standards, and the box body 1 is designed as a three-layer structure, in which the magnetic induction heat-conducting layer 11 is the main structure for transferring heat to the food and realizing the heating function, and is preferably a magnetic conductive foil. Under the action of any electromagnetic heating device that can provide a sudden magnetic field, it can quickly transfer heat to the food to achieve efficient heating; the anti-scalding layer 12 is in direct contact with the human body, and is preferably an anti-scalding and heat-insulating layer made of Teflon material, which has good temperature resistance, non-stick properties, wear resistance and corrosion resistance; the safety layer 13 is the part that is in direct contact with the food, and is preferably food-grade silicone oil paper that is resistant to high temperatures and can directly contact food, to ensure food safety while preventing food from adhering to the inner wall of the packaging box.

[0033] The usage process in this embodiment is as follows: the manufacturer pre-loads the pre-prepared dishes into the food area and seals it with an isolation film. When the user uses it, the packaging box is placed on a rotatable magnetic induction heating device, and the heating device is started. The magnetic induction heat conductive layer quickly absorbs heat and transfers it to the food. At the same time, the packaging box rotates around the center line as the axis, and the flipping part stir-fryes the food so that it is heated evenly. After the heating is completed, the user tears off the isolation film and can eat it.

[0034] As a preference of this embodiment, the flap member 3 is configured as a protrusion extending toward the center of the box body 1 , and there are multiple flap members 3 equidistantly distributed on the inner wall of the box body 1 .

[0035] In this embodiment, the flipping member 3 is a protrusion fixedly arranged on the inner wall of the box body 1, and the protrusions all point to the center of the box body. The height is preferably 1 / 6 to 1 / 4 of the inner diameter of the box body to ensure that the protrusion can fully contact the food. Furthermore, multiple protrusions are arranged and evenly distributed on the inner wall of the box body to form a regular stir-frying of the food and improve the stir-frying efficiency.

[0036] As a preferred embodiment of the present invention, the flap 3 is a cone with its tip facing the center of the box body 1 .

[0037] Different forms of the flipping piece 3 are suitable for different foods and have different effects. In the present embodiment, the flipping piece is a conical protrusion extending toward the center, which can produce a strong cutting effect when rotating, and can effectively break up clumping foods, especially thicker and larger foods, such as beans, potatoes, meat, etc. The sharp top can be used to cut the foods during heating, thereby improving the heating efficiency and heating effect.

[0038] As a preferred embodiment of this embodiment, the flap 3 is a hemispherical body.

[0039] In this embodiment, the hemispherical flipping member has a smooth contact surface, and the contact surface is relatively uniform. The curved surface structure can reduce damage and destruction to food, and is suitable for fragile and soft food, such as tofu, vegetables, etc.

[0040] As a preferred embodiment of this embodiment, the flap 3 is a cuboid.

[0041] In this embodiment, since the rectangular parallelepiped has an extended linear structure, it can prevent the ingredients from getting entangled with each other, and the large contact area with the inner wall of the box body can produce a continuous pushing effect, allowing the ingredients to form a good tumbling flow. It is suitable for strip-shaped ingredients, such as noodles, shredded meat, etc., and is also suitable for fluid-like ingredients with a thinner texture.

[0042] Compared with the prior art, the technical solution described in the present application has the advantages of being able to effectively solve the problem of uneven heating during the heating process of the existing pre-prepared food packaging boxes through a simple structure, and further setting different packaging box structures according to different types of pre-prepared dishes, which is more targeted and greatly improves the heating effect.

[0043] Embodiment 2

[0044] Based on the first embodiment, this embodiment discloses a packaging box which is easy to operate and more convenient to heat.

[0045] The box body 1 further comprises a packaging film 4 disposed on the top of the box body 1 , and a piercing member 5 disposed on a side of the packaging film 4 close to the isolation film 2 .

[0046] In this embodiment, the problem that the internal pressure may be too high and cause the packaging box to rupture due to the vacuum packaging of the food area by the isolation film is solved. A packaging film 4 is provided at the end of the operation area b. The packaging film 4 effectively avoids the problem of the isolation film being damaged by external force and causing food spoilage during transportation. In addition, the packaging film 4 makes the operation area b a closed space, which can be used to place tableware, which is convenient for users to take and improves the user experience. The packaging film 4 is preferably an easy-to-tear aluminum film, which is tightly combined with the edge of the packaging box through high-strength heat sealing technology, has a certain ductility and toughness, and is convenient for users to complete heating. After that, it can be quickly opened; a piercing piece 5 is arranged on the surface of the packaging film 4 located in the operation area b, and preferably there are multiple piercing pieces 5. The piercing pieces 5 are used to squeeze the packaging film 4 downward before heating so that the piercing pieces 5 exert multiple forces on the surface of the isolation film 2, and multiple heating holes are formed on the surface of the isolation film 2. The heating holes can discharge excess steam during the subsequent heating process to avoid excessive pressure in the box body, and ensure pressure balance through natural vacuum release. The operation is simple and convenient; a mark for the position of the piercing piece is arranged on the surface of the packaging film 4 located on the outside, and the mark can be in the form of a downward depression or a text mark, etc., to guide the user to apply force.

[0047] As a preference of this embodiment, the diameter of the piercing member 5 gradually decreases in the direction approaching the isolation membrane 2, and the height of the piercing member 5 is smaller than the height of the operating area b.

[0048] In this embodiment, the end of the piercing member 5 is set to be a pointed part, which can effectively form a heating hole and avoid the situation where stress concentration damages the entire isolation membrane. The height of the piercing member 5 is less than the height of the operating area b to avoid affecting the isolation membrane during transportation.

[0049] As a preferred embodiment of the present invention, a pre-indentation is provided at the connection between the packaging film 4 and the box body 1 .

[0050] In this embodiment, the packaging film 4 is provided with a pre-indentation designed along the circumference of the box body as a tearing path at a position close to the outer anti-scalding layer of the box body. The pre-indentation can be a shallow closed-loop notch or a dot-shaped cutting line. A tiny incision is preset on the edge as the starting point for tearing, which facilitates operation and improves the overall user experience.

[0051] Compared with the prior art, the technical solution described in the present application has the following advantages: compared with a fully enclosed heating space, the heating method with heating holes is more conducive to safety during the heating process, and the user does not need to find a device to punch holes before heating. The double-layer film design built into the heating box not only effectively realizes partitioning and protection, but also makes it convenient for the operator to punch holes before heating, which greatly improves the user experience and the safety of the packaging box.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the present invention.

Claims

1. A pre-prepared food heating packaging box, characterized in that: The invention comprises a box body (1), an isolation membrane (2) arranged on the box body (1) and used for dividing the interior of the box body (1) into two areas, namely a food area (a) and an operation area (b), and a turning piece (3) arranged on the inner side wall of the box body (1) and located in the food area (a) and used for turning food.

2. The pre-prepared food heating packaging box according to claim 1, characterized in that: The flipping piece (3) is configured as a protrusion extending towards the center of the box body (1).

3. The pre-prepared food heating packaging box according to claim 2, characterized in that: There are multiple flaps (3) which are evenly distributed on the inner wall of the box body (1).

4. The pre-prepared food heating packaging box according to claim 1, characterized in that: The box body (1) comprises a magnetic induction heat-conducting layer (11), an anti-scalding layer (12) arranged on the outside of the magnetic induction heat-conducting layer (11), and a safety layer (13) arranged on the inside of the magnetic induction heat-conducting layer (11).

5. The pre-prepared food heating packaging box according to claim 4, characterized in that: It also comprises a packaging film (4) arranged on the top of the box body (1), and a piercing member (5) arranged on a side of the packaging film (4) close to the isolation film (2).

6. The pre-prepared food heating packaging box according to claim 5, characterized in that: The diameter of the piercing member (5) gradually decreases in a direction approaching the isolation membrane (2), and the height of the piercing member (5) is smaller than the height of the operating area (b).

7. The pre-prepared food heating packaging box according to claim 5, characterized in that: A pre-press is provided at the connection between the packaging film (4) and the box body (1).

8. The pre-prepared food heating packaging box according to claim 2, characterized in that: The flipping piece (3) is a cone with the tip facing the center of the box body (1).

9. The pre-prepared food heating packaging box according to claim 2, characterized in that: The flap (3) is a hemispherical body.

10. The pre-prepared food heating packaging box according to claim 2, characterized in that: The flap (3) is a rectangular parallelepiped.

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