Exhaust bag of microwave oven
By designing V-shaped weak parts in the microwave oven exhaust bag to achieve controllable pressure relief and airflow channels to increase injection resistance, the problem of water vapor explosion in bagged food is solved when heating in the microwave oven, and the safety and convenience of the heating process are improved.
Patent Information
- Application Number
- CN202421793612.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-26
AI Technical Summary
When heating food in a microwave oven, the sealed packaging bag is prone to bloating due to water vapor, causing food to splash and may damage the microwave oven. The user needs to open the packaging bag and seal it for heating, which affects rapid operation.
A microwave oven exhaust bag is designed, with one side of the bag body open and the remaining edge is a sealing edge. A weak part is provided near the open opening. The weak part is V-shaped and has a strength lower than other sealing edges. It is used to relieve pressure of water vapor and reduce the probability of bursting.
The controllable pressure relief of the weak part reduces the probability of the bag burst, and the water vapor injection resistance is increased through the V-shaped airflow channel, reducing the probability of food being sprayed, and improving the safety and convenience of the heating process.
Smart Images

Figure CN222922135U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of food packaging bags, and particularly to a microwave oven exhaust bag. Background Art
[0002] With the accelerating pace of life in big cities and the preference of young people for fast food, using a microwave oven to heat fully cooked food or semi-finished cooking products has become an important means in the catering industry. At the same time, young people also like to buy semi-finished food by themselves and quickly heat it at home for consumption.
[0003] Subsequently, higher requirements are put forward for the packaging of related foods. The sealed packaging bag is easily burst by water vapor during the microwave heating process of food. The burst packaging bag is likely to cause food to splash and may damage the microwave oven.
[0004] In view of the above related technologies, when heating packaged food, users need to first open the seal of the packaging bag before heating, which is not conducive to quick operation and reduces the customer experience. Utility Model Content
[0005] In order to improve the convenience of microwave heating of packaged food, the present application provides a microwave oven exhaust bag.
[0006] The microwave oven exhaust bag provided by the present application adopts the following technical solutions:
[0007] A microwave oven exhaust bag includes a bag body. One side of the bag body is open, and the remaining edges of the bag body are in a sealed state. At least one weak part is provided on the side of the bag body close to the open side. The sealing strength at the position of the weak part is lower than that at the other sealed positions. The weak part is V-shaped, and the opening direction of the V-shaped weak part faces the open direction of the bag body.
[0008] By adopting the above solution, after loading the content (such as food) into the bag body, the worker heat-seals the open side of the bag body with equipment. When the user needs to microwave-heat the content in the bag body, the user puts the bag body into the microwave oven for heating. As the temperature of the content rises, a large amount of water vapor is generated in the bag body, and the pressure in the bag body increases. The water vapor breaks through the bag body from the weak part, and the water vapor in the bag body realizes controllable pressure relief, reducing the probability of the bag body bursting. Further, after the V-shaped weak part is broken through, a V-shaped air flow channel is formed. The V-shaped air flow channel extends the ejection path of the high-pressure water vapor in the bag body, increases the ejection resistance of the water vapor, and reduces the probability of the water vapor carrying the content and spraying it out. At the same time, the V-shaped air flow channel makes the water vapor spray obliquely upward, reducing the probability of the bag body tipping over due to the horizontal spraying of the water vapor, and further reducing the flow of the content to the position of the weak part.
[0009] Preferably, a sealing zipper is provided on the open side of the bag body.
[0010] By adopting the above - mentioned solution, the reusable sealing zipper improves the reusability of the bag body. When the food is not finished, it can be temporarily sealed and stored.
[0011] Preferably, a relief angle is cut on the open side of the bag body, and the relief angle is arranged at the end of the open side of the bag body.
[0012] By adopting the above - mentioned solution, the relief angle facilitates the user to take and separate the bag body, and is convenient for the user to quickly separate the heat - sealed bag body or the bag body temporarily sealed by the sealing strip.
[0013] Preferably, the bottom of the bag body is hexagonal, and the two long sides of the hexagon are parallel to one side of the open mouth of the bag body.
[0014] By adopting the above - mentioned solution, the hexagonal bottom of the bag body improves the stability of the bag body's self - standing.
[0015] Preferably, a support layer is arranged at the position of the bag body close to the weak part. The hardness of the support layer is greater than that of the bag body, and the length direction of the support layer is perpendicular to the sealing edge where the weak part is located.
[0016] By adopting the above - mentioned solution, when the bag body expands under the influence of the air pressure of water vapor, the harder support layer reduces the probability of the bag body being torn near the weak part.
[0017] Preferably, a flexible guiding part is arranged at one end of the support layer close to the weak part. The guiding part is folded and abuts against the weak part.
[0018] By adopting the above - mentioned solution, when the weak part is broken through, the guiding part is ejected from the weak part by the airflow. The guiding part facilitates the outflow of the condensed water near the weak part and reduces the probability of the condensed water sticking to the weak part.
[0019] Preferably, a partition strip is arranged on the guiding part, and the partition strip is arranged along the length direction of the guiding part.
[0020] By adopting the above - mentioned solution, after the partition strip is ejected from the weak part along with the guiding part, the partition strip increases the gap of the opening at the position of the weak part and reduces the probability of the weak part being blocked by the guiding part, condensed water, etc.
[0021] In summary, the present application has the following beneficial effects:
[0022] 1. When the user needs to microwave - heat the contents in the bag body, the user puts the bag body into the microwave oven for heating. As the temperature of the contents rises, a large amount of water vapor is generated in the bag body, the pressure in the bag body increases, and the water vapor breaks through the bag body from the weak part. The water vapor in the bag body realizes controllable pressure relief, reducing the probability of the bag body bursting;
[0023] 2. After the V-shaped weak part is breached, a V-shaped air flow channel is formed. The V-shaped air flow channel extends the injection path of the high-pressure water vapor in the bag body, increases the injection resistance of the water vapor, and reduces the probability of the water vapor carrying and ejecting the content;
[0024] 3. The V-shaped air flow channel makes the water vapor inject obliquely upward, reducing the probability of the bag body tipping over due to the horizontal injection of the water vapor, and further reducing the flow of the content to the position of the weak part. Description of the Drawings
[0025] Figure 1 is a schematic structural diagram of a microwave oven exhaust bag according to Embodiment 1 of the present application;
[0026] Figure 2 is a plane expansion diagram of a microwave oven exhaust bag according to Embodiment 1 of the present application;
[0027] Figure 3 is a schematic structural diagram of a microwave oven exhaust bag according to Embodiment 2 of the present application;
[0028] Figure 4 is a schematic structural diagram of the prominent guiding part according to Embodiment 2 of the present application.
[0029] Description of the Reference Numerals: 1. Bag body; 11. Weak part; 12. Yielding angle; 13. Support layer; 14. Sealing zipper; 2. Guiding part; 21. Partition strip. Detailed Description of the Embodiment
[0030] The following is a further detailed description of the present application in conjunction with the attached Figures 1-4 drawings.
[0031] In the present application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0033] An embodiment of this application discloses a microwave oven exhaust bag, which is mainly used to improve the convenience of microwave heating of bagged food. For this purpose, the following main ideas are adopted in this application:
[0034] Embodiment 1
[0035] Referring to Figure 1 and Figure 2 , a microwave oven exhaust bag includes a bag body 1 with one open side, and the remaining edges of the bag body 1 are in a sealed state. After the contents are loaded, the open side of the bag body 1 is heat-sealed. Both sides of the bag body 1 near the open side are provided with weak parts 11, and the sealing strength at the position of the weak parts 11 is lower than that at the other sealing positions. The weak parts 11 are still obtained after the heat-sealing treatment of the bag body 1, but by using an interface agent or reducing the heat-sealing temperature or reducing the heat-sealing pressure and other methods, the strength of the weak parts 11 is lower than that at other sealing positions. The weak parts 11 are V-shaped, and the opening direction of the V-shaped of the weak parts 11 faces the open direction of the bag body 1. In addition, the weak parts 11 can also be set in various shapes such as circular, linear, concave-shaped, wavy, etc., and other shapes proposed by those skilled in the art through equivalent changes inspired by this application also belong to the protection scope of this application.
[0036] When the user needs to microwave-heat the contents in the bag body 1, the user puts the bag body 1 into the microwave oven for heating. As the temperature of the contents rises, a large amount of water vapor is generated in the bag body 1, the pressure in the bag body 1 increases, and the water vapor breaks through the bag body 1 from the weak parts 11. The water vapor in the bag body 1 realizes controllable pressure relief, reducing the probability of the bag body 1 bursting. Further, after the V-shaped weak parts 11 are broken through, a V-shaped air flow channel is formed. The V-shaped air flow channel extends the ejection path of the high-pressure water vapor in the bag body 1, increases the ejection resistance of the water vapor, and reduces the probability of the water vapor carrying the contents out. At the same time, the V-shaped air flow channel makes the water vapor eject obliquely upward, reducing the probability of the bag body 1 tipping over due to the horizontal ejection of the water vapor, and further reducing the probability of the contents flowing to the position of the weak parts 11.
[0037] Referring toFigure 1 and Figure 2 , two relief corners 12 are cut on the open side of the bag body 1, and the two relief corners 12 are respectively located at both ends of the open side of the bag body 1. A sealing zipper 14 is also fixedly connected to the open side of the bag body 1. The bottom of the bag body 1 is hexagonal, and the two long sides of the hexagon are parallel to the open side of the bag body 1.
[0038] Embodiment 2
[0039] Refer to Figure 3 and Figure 4 , a support layer 13 is fixedly connected to the inner wall of the bag body 1 near the weak part 11. The hardness of the support layer 13 is greater than that of the bag body 1, and the length direction of the support layer 13 is perpendicular to the sealing edge where the weak part 11 is located. When the bag body 1 expands under the influence of the water vapor pressure, the harder support layer 13 reduces the probability of the bag body 1 near the weak part 11 being torn. One end of the support layer 13 close to the weak part 11 is fixedly connected with a flexible guiding part 2, and the guiding part 2 is folded and abuts against the weak part 11. When the weak part 11 is broken through, the guiding part 2 is ejected from the weak part 11 by the airflow. The guiding part 2 facilitates the outflow of the condensed water near the weak part 11 and reduces the probability of the condensed water sticking to the weak part 11. A partition strip 21 is fixedly connected to the guiding part 2, and the partition strip 21 is arranged along the length direction of the guiding part 2. After the partition strip 21 is ejected from the weak part 11 along with the guiding part 2, the partition strip 21 increases the gap of the opening at the position of the weak part 11 and reduces the probability of the weak part 11 being blocked by the guiding part 2, the condensed water, etc.
[0040] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.
Claims
1. A microwave exhaust bag, comprising a bag body (1), characterized in that: The bag body (1) is open at one side, and the other edges of the bag body (1) are in a sealed state. The bag body (1) is provided with at least one weak portion (11) at the edge close to the open side, and the edge sealing strength at the position of the weak portion (11) is lower than that at the other edge sealing positions. The weak portion (11) is V-shaped, and the V-shaped opening direction of the weak portion (11) faces the open direction of the bag body (1).
2. A microwave exhaust bag according to claim 1, characterized in that: The open side of the bag body (1) is provided with a sealing zipper (14).
3. A microwave exhaust bag according to claim 1, characterized in that: The open side of the bag body (1) is cut with a relief corner (12), and the relief corner (12) is arranged at the end of the open side of the bag body (1).
4. A microwave exhaust bag according to claim 1, characterized in that: The bottom of the bag body (1) is a hexagon, and two long sides of the hexagon are parallel to an open side of the bag body (1).
5. A microwave exhaust bag according to claim 1, characterized in that: A support layer (13) is provided at a position of the bag body (1) close to the weak portion (11); the hardness of the support layer (13) is greater than the hardness of the bag body (1); and the length direction of the support layer (13) is perpendicular to the edge sealing where the weak portion (11) is located.
6. A microwave exhaust bag according to claim 5, characterized in that: A flexible guide portion (2) is provided at one end of the support layer (13) close to the weak portion (11); the guide portion (2) is folded and abuts against the weak portion (11).
7. A microwave exhaust bag according to claim 6, characterized in that: The guide portion (2) is provided with a dividing strip (21), and the dividing strip (21) is arranged along the length direction of the guide portion (2).