Food packaging bag for microwave oven heating
By designing a front bag, a bottom bag, and a pressure relief unit on a microwave-safe food packaging bag, and utilizing an inclined venting and sealing design, the problem of the packaging bag being blown away during venting is solved, thus achieving a safe and reliable food heating process.
Patent Information
- Application Number
- CN202520167723.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing microwave oven food packaging bags are prone to being ejected during venting, leading to safety hazards and food spillage.
Design a food packaging bag for microwave heating, comprising a top bag body, a bottom bag body, and a pressure relief unit. The pressure relief unit has a collection hole, an upper antenna hole, and a lower antenna hole at the left and right ends of the top bag body. A third seal separates the storage cavity from the antenna holes. The width of the third seal perpendicular to the extension direction is smaller than that of the first seal. An inclined exhaust design is used to balance the force.
It effectively reduces the probability of the packaging bag being blown away during exhaust, keeps the packaging bag stationary, prevents food from spilling, and improves safety.
Smart Images
Figure CN223703602U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to food packaging technical field, especially microwave oven heating food packaging bag for. BACKGROUND
[0002] The food packaging bag for microwave oven heating can seal the packaged food during transportation and storage, and can be directly put into the microwave oven for heating without easy explosion.
[0003] At present, although this kind of food packaging bag can basically solve the problem of explosion-proof bag, for relatively light food and its packaging bag, after the single-side weak point on the packaging bag is broken, the gas in the storage cavity is instantaneously horizontally discharged, the packaging bag is subjected to the reaction force and is easily bounced, if the bounced packaging bag deviates from the turntable of the microwave oven, various accidents may occur, if the bounced packaging bag hits the furnace wall, it may be knocked over, after being overturned, the liquid in the packaging bag is easily spilled, which not only affects the taste of food, but also pollutes the microwave oven. SUMMARY
[0004] The utility model aims at at least solving one of the technical problems existing in the prior art.
[0005] The utility model discloses a food packaging bag for microwave oven heating, including: face bag body, the left and right two ends and upper end all are equipped with first edge, the face bag body includes front face bag and rear face bag, the front face bag with the rear face bag is connected through the first edge, bottom bag body, inserts the lower end of face bag body with the face bag body is connected through second edge, and the bottom bag body and face bag body surround and form storage cavity, pressure relief unit is arranged in the left and right two ends of face bag body, the pressure relief unit includes collection hole, upper antenna hole, lower antenna hole and third edge, the collection hole interrupts the first edge and one end extends outside the face bag body, the upper antenna hole is inclined and extends upwards from the other end of collection hole and surpasses the inner edge of first edge in the left and right direction, the lower antenna hole is inclined and extends downwards from the other end of collection hole and surpasses the inner edge of first edge in the left and right direction, the upper antenna hole with the lower antenna hole is symmetrically arranged along the center line of collection hole, the third edge extends along the upper antenna hole and the lower antenna hole and the edge of storage cavity is directed to and links together the first edge of interrupted transition, and the third edge blocks storage cavity with upper antenna hole and blocks storage cavity with lower antenna hole, the width of third edge in the direction of vertical to extension is less than the width of first edge in the left and right direction, and the area of third edge on near the upper antenna hole and the lower antenna hole intersection is at least partially not surpassing the inner edge of first edge in the left and right direction.
[0006] The package bag has at least the following beneficial effects: the pressure relief unit is ingeniously designed, the upper antenna hole extends obliquely upward and beyond the inner edge of the first sealing edge in the left-right direction, the lower antenna hole extends obliquely downward and beyond the inner edge of the first sealing edge in the left-right direction, the third sealing edge is closer to the center of the storage cavity relative to the first sealing edge, when the storage cavity expands, the included angle of the front bag and the rear bag at the third sealing edge is larger than the included angle at the first sealing edge, the third sealing edge is more prone to being peeled off first, and the width of the third sealing edge in the direction perpendicular to the extension direction is smaller than the width of the first sealing edge in the left-right direction, the third sealing edge constitutes a weak point, and is exposed after being broken, and the upper antenna hole and the lower antenna hole are used for exhaust and pressure relief; the package bag solves the problem of being bounced away during exhaust from multiple dimensions, first, the pressure relief unit is arranged at both ends of the face bag body to realize exhaust and pressure relief at both ends, maintain the force balance of the package bag, and ensure that the package bag is stationary; even if only one end of the pressure relief unit is used for exhaust and pressure relief, the third sealing edge is usually peeled off from inside to outside, and since the area of the third sealing edge near the intersection of the upper antenna hole and the lower antenna hole at least partially does not exceed the inner edge of the first sealing edge in the left-right direction, the area of the third sealing edge that does not exceed the inner edge of the first sealing edge in the left-right direction is protected by the first sealing edge and is difficult to be peeled off, and further, the upper antenna hole and the lower antenna hole can be kept from being blocked, so that the upper antenna hole is used for obliquely downward exhaust and the lower antenna hole is used for obliquely upward exhaust, and the two directions of gas flow collide at the convergence hole, the speed of the two directions of gas flow in the up-down direction can be offset, the speed of the exhaust of the convergence hole to the outside is reduced, and the probability of the package bag being bounced away is effectively reduced.
[0007] According to some embodiments of the present application, the upper antenna hole and the lower antenna hole converge at the convergence hole and form a transverse "Y" shape, and the intersection point of the extension line of the center line of the upper antenna hole and the outer edge of the corresponding end of the face bag body is within the coverage range of the convergence hole, and the intersection point of the extension line of the center line of the lower antenna hole and the outer edge of the corresponding end of the face bag body is within the coverage range of the convergence hole.
[0008] According to some embodiments of the present application, the included angle between the center line of the upper antenna hole and the center line of the lower antenna hole is 60°-120°.
[0009] According to some embodiments of the present application, the third sealing edge has a "3" shape or a reverse "3" shape.
[0010] According to some embodiments of the present application, the width of the third sealing edge in the direction perpendicular to the extension direction is 1 / 6-1 / 2 of the width of the first sealing edge in the left-right direction.
[0011] According to some embodiments of the present application, the bottom bag body is folded in the up-down direction to form a front folded bottom bag and a rear folded bottom bag, the front side of the front folded bottom bag is connected with the rear side of the front face bag through the second sealing edge, the rear side of the rear folded bottom bag is connected with the front side of the rear face bag through the second sealing edge, and the second sealing edge is distributed on the bottom bag body in the circumferential direction of the bottom bag body in the unfolded state.
[0012] According to some embodiments of the present application, the left and right ends of the bottom bag body are each provided with a fourth sealing edge, and the rear side of the front folded bottom bag and the front side of the rear folded bottom bag are connected through the fourth sealing edge.
[0013] According to some embodiments of the present application, the fourth sealing edge has a preset distance from the lower end of the bottom bag body.
[0014] According to some embodiments of the present application, at least one of the left and right ends of the face bag body is provided with a tearable opening.
[0015] According to some embodiments of the present application, the tearable opening is located between the pressure relief unit and the first sealing edge of the upper end of the face bag body in the up-down direction.
[0016] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0017] The present application will be further described below in combination with the drawings and embodiments, wherein:
[0018] Figure 1 is a structural schematic view of an embodiment of the present application;
[0019] Figure 2 is an A-A sectional view of Figure 1 ; is a B-B sectional view of
[0020] Figure 3 is a complete schematic view of an embodiment of the present application in a sealed state along the B-B direction after being cut; Figure 2
[0021] Figure 4 is a partial enlarged view of C in Figure 3 ; is a complete schematic view of an embodiment of the present application in a pressure relief state along the B-B direction after being cut;
[0022] Figure 5 Figure 2
[0023] Figure 6 Figure 5 is a partial enlarged view of D in .
[0024] Reference numerals: 1. Outer bag body, 11. Front bag, 12. Back bag, 13. First seal, 2. Bottom bag body, 21. Front fold bottom bag, 22. Back fold bottom bag, 23. Fourth seal, 23. Second seal, 3. Storage cavity, 4. Pressure relief unit, 5. Collection hole, 51. Upper antenna hole, 52. Lower antenna hole, 53. Third seal, 54. Easy-tear opening, 6. Detailed Implementation
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, the use of terms such as first, second, third, and fourth is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.
[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0028] Reference Figures 1 to 6 This utility model discloses a food packaging bag for microwave heating, including a front bag body 1, a bottom bag body 2, a second sealing edge 3, a storage cavity 4, and a pressure relief unit 5.
[0029] Among them, reference Figure 1 and Figure 2 The bag body 1 has a first sealing edge 13 at both ends and the top. The bag body 1 includes a front bag 11 and a back bag 12, which are connected by the first sealing edge 13. The bottom bag body 2 is inserted into the lower end of the bag body 1 and connected to the bag body 1 by the second sealing edge 3. The bottom bag body 2 and the bag body 1 enclose a storage cavity 4. The storage cavity 4 is a sealed chamber, and the shape of the storage cavity 4 can be changed. By changing the shape of the bottom bag body 2, the packaging bag can stand up on its own to form a stand-up pouch.
[0030] Reference Figure 1 , Figure 3 and Figure 4The pressure relief unit 5 is arranged at the left and right ends of the face bag body 1, and comprises a collection hole 51, an upper antenna hole 52, a lower antenna hole 53, and a third sealing edge 54. The collection hole 51 interrupts the first sealing edge 13 and extends to the outside of the face bag body 1 at one end. The upper antenna hole 52 extends obliquely upward from the other end of the collection hole 51 and beyond the inner edge of the first sealing edge 13 in the left-right direction. The lower antenna hole 53 extends obliquely downward from the other end of the collection hole 51 and beyond the inner edge of the first sealing edge 13 in the left-right direction. The upper antenna hole 52 and the lower antenna hole 53 are symmetrically arranged above and below the center line of the collection hole 51.
[0031] It can be understood that the upper antenna hole 52 and the lower antenna hole 53 both beyond the inner edge of the first sealing edge 13 means that the area of the upper antenna hole 52 and the lower antenna hole 53 beyond the inner edge of the first sealing edge 13 in the left-right direction is farther away from the outer edge of the first sealing edge 13 than the inner edge of the first sealing edge 13. The first sealing edge 13 and the third sealing edge 54 can be obtained by hot pressing and sealing the front bag 11 and the rear bag 12. The second sealing edge 3 can be obtained by hot pressing and sealing the face bag body 1 and the bottom bag body 2.
[0032] Referring to Figure 4 The third sealing edge 54 extends along the edges of the upper antenna hole 52 and the lower antenna hole 53 towards the storage cavity 4 and connects the interrupted first sealing edge 13 together. The third sealing edge 54 blocks the storage cavity 4 from the upper antenna hole 52 and the lower antenna hole 53. The width of the third sealing edge 54 in the direction perpendicular to the extension direction is smaller than the width of the first sealing edge 13 in the left-right direction. The area of the third sealing edge 54 near the intersection of the upper antenna hole 52 and the lower antenna hole 53 is at least partially not beyond the inner edge of the first sealing edge 13 in the left-right direction.
[0033] It can be understood that the area of the third sealing edge 54 near the intersection of the upper antenna hole 52 and the lower antenna hole 53 is at least partially not beyond the inner edge of the first sealing edge 13 in the left-right direction means that the area of the third sealing edge 54 not beyond the inner edge of the first sealing edge 13 in the left-right direction is closer to the outer edge of the first sealing edge 13 than the inner edge of the first sealing edge 13.
[0034] The clever design of the pressure relief unit of the packaging bag, the oblique upward extension of the upper antenna hole 52 beyond the inner edge of the first sealing edge 13 in the left-right direction, and the oblique downward extension of the lower antenna hole 53 beyond the inner edge of the first sealing edge 13 in the left-right direction make the third sealing edge 54 relatively closer to the center of the storage cavity 4 than the first sealing edge 13. Referring to Figure 4 and Figure 6, when the storage cavity 4 is inflated, the included angle of the front bag 11 and the rear bag 12 at the third sealing edge 54 is larger than the included angle at the first sealing edge 13, the third sealing edge 54 is more prone to being peeled off first, and the width of the third sealing edge 54 in the direction perpendicular to the extension direction is smaller than the width of the first sealing edge 13 in the left-right direction, so that the third sealing edge 54 forms a weak point and is broken to expose the upper antenna hole 52 and the lower antenna hole 53 for exhaust and pressure relief.
[0035] The packaging bag solves the problem of being bounced away during exhaust from multiple dimensions:
[0036] Firstly, referring to Figure 1 , the pressure relief unit 5 is arranged at both left and right ends of the face bag body 1, exhaust and pressure relief are realized at both ends, the packaging bag is balanced under force, and the packaging bag is guaranteed to be stationary;
[0037] Secondly, even if only one end of the pressure relief unit 5 is in exhaust and pressure relief, the third sealing edge 54 is usually peeled off gradually from inside to outside, referring to Figure 6 , since the area of the third sealing edge 54 close to the intersection of the upper antenna hole 52 and the lower antenna hole 53 at least partially does not exceed the inner edge of the first sealing edge 13 in the left-right direction, the area of the third sealing edge 54 that does not exceed the inner edge of the first sealing edge 13 in the left-right direction is protected by the first sealing edge 13 and is difficult to be peeled off and keep the front bag 11 and the rear bag 12 sealed, and further capable of keeping the upper antenna hole 52 and the lower antenna hole 53 blocked, which forms a situation that the upper antenna hole 52 exhausts obliquely downward and the lower antenna hole 53 exhausts obliquely upward, and the two directions of gas meet and collide at the convergence hole 51, capable of canceling the velocity in the up-down direction of each other, reducing the velocity of the convergence hole 51 finally exhausting to the outside, and effectively reducing the probability of the packaging bag being bounced away.
[0038] In some embodiments of the utility model, referring to Figure 4 , Figure 5 and Figure 6 , the upper antenna hole 52 and the lower antenna hole 53 converge at the convergence hole 51 and form a horizontally placed "Y" shape, the intersection point of the extension line of the center line of the upper antenna hole 52 and the outer edge of the corresponding end of the face bag body 1 is within the coverage range of the convergence hole 51, and the intersection point of the extension line of the center line of the lower antenna hole 53 and the outer edge of the corresponding end of the face bag body 1 is within the coverage range of the convergence hole 51.
[0039] The above-mentioned packaging bag solves the problem of being bounced away during exhaust from multiple dimensions, which is a further extension of solving the problem:
[0040] Even if one of the upper and lower horn holes 52 and 53 of the pressure relief unit 5 with only one end is in the extreme case of exhaust pressure relief, that is, the other of the upper and lower horn holes 52 and 53 is in a closed state, and the corresponding third sealing edge 54 area is not peeled off, the gas discharged from one of the upper and lower horn holes 52 and 53 can be inclined through the collection hole 51 and discharged outward, so that the gas in the storage cavity 4 is instantaneously discharged relatively horizontally, the reaction force in the horizontal direction of the packaging bag is weakened, and the probability of the packaging bag being bounced away is also effectively reduced.
[0041] With reference to Figure 4 and Figure 6 , in some embodiments, the included angle between the center line of the upper horn hole 52 and the center line of the lower horn hole 53 is 60°-120°, then the included angle of the center line of the upper horn hole 52 relative to the horizontal direction is 30°-60°, and the included angle of the center line of the lower horn hole 53 relative to the horizontal direction is 30°-60°, which is conducive to the mutual cancellation of a large part of the speed of the two directions of gas.
[0042] With reference to Figure 4 and Figure 6 , the third sealing edge 54 can specifically be in the shape of a "3" or an inverted "3", and the width of the third sealing edge 54 in the direction perpendicular to the extension direction is 1 / 6-1 / 2 of the width of the first sealing edge 13 in the left-right direction, which is conducive to the inner end of the third sealing edge 54 being peeled off and the outer end being kept sealed with the front bag 11 and the rear bag 12.
[0043] In some embodiments, with reference to Figure 2 , the bottom bag body 2 is folded along the up-down direction to form a front folded bottom bag 21 and a rear folded bottom bag 22, the front side of the front folded bottom bag 21 is connected to the rear side of the front bag 11 through the second sealing edge 3, and the rear side of the rear folded bottom bag 22 is connected to the front side of the rear bag 12 through the second sealing edge 3, with reference to Figure 1 , Figure 3 and Figure 5 , the second sealing edge 3 is distributed on the bottom bag body 2 along the outer circumferential direction of the bottom bag body 2 in the unfolded state, the central area of the bottom bag body 2 is not connected to the face bag body 1, and constitutes the bottom of the storage cavity 4.
[0044] After the bottom bag body 2 is unfolded by a certain angle, the lower end of the front folded bottom bag 21 and the lower end of the rear folded bottom bag 22 are separated, so that the packaging bag can stand by itself.
[0045] With reference to Figure 1 and Figure 3The left and right ends of the bottom bag body 2 can be provided with fourth sealing edges 23, the rear side of the front folded bottom bag 21 and the front side of the rear folded bottom bag 22 are connected through the fourth sealing edges 23, after the bottom bag body 2 is unfolded to a certain angle, the lower end of the front folded bottom bag 21 and the lower end of the rear folded bottom bag 22 are separated and form a nearly spindle-shaped structure, which is beneficial to the self-standing of the packaging bag and is not easy to be tilted.
[0046] In some embodiments, with reference to Figure 3 The fourth sealing edge 23 has a preset distance from the lower end of the bottom bag body 2, so that the lower end of the front folded bottom bag 21 and the lower end of the rear folded bottom bag 22 are separated and form a small parenthesis shape, the spacing in the front-rear direction is enlarged, which is more beneficial to the self-standing of the packaging bag and is not easy to be tilted.
[0047] It can be understood that the fourth sealing edge 23 can be obtained by hot pressing and sealing the front folded bottom bag 21 and the rear folded bottom bag 22.
[0048] With reference to Figure 1 In some embodiments, at least one of the left and right ends of the face bag body 1 is provided with a tearable opening 6, the tearable opening 6 is located between the pressure relief unit 5 and the first sealing edge 13 of the upper end of the face bag body 1 in the up-down direction, the user can tear the face bag body 1 along the left-right direction from the tearable opening 6 to enjoy the food.
[0049] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.
[0050] Of course, the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.
Claims
1. A food packaging bag for microwave heating, characterized in that, include: The bag body has a first sealing edge at both the left and right ends and the top. The bag body includes a front bag and a back bag, which are connected by the first sealing edge. A bottom bag body is inserted into the lower end of the face bag body and connected to the face bag body through a second sealing edge. The bottom bag body and the face bag body enclose each other to form a storage cavity. A pressure relief unit is disposed at both ends of the bag body. The pressure relief unit includes a collection hole, an upper antenna hole, a lower antenna hole, and a third sealing edge. The collection hole interrupts the first sealing edge and extends out of the bag body at one end. The upper antenna hole extends obliquely upward from the other end of the collection hole and extends beyond the inner edge of the first sealing edge in the left-right direction. The lower antenna hole extends obliquely downward from the other end of the collection hole and extends beyond the inner edge of the first sealing edge in the left-right direction. The upper and lower antenna holes are located vertically along the center line of the collection hole. The third sealing edge is symmetrically arranged, extending along the upper and lower tentacle holes toward the edge of the storage cavity and transitioning to connect the interrupted first sealing edge. The third sealing edge separates the storage cavity from the upper tentacle hole and from the lower tentacle hole. The width of the third sealing edge perpendicular to the extension direction is smaller than the width of the first sealing edge in the left-right direction. At least part of the area on the third sealing edge near the intersection of the upper and lower tentacle holes does not extend beyond the inner edge of the first sealing edge in the left-right direction.
2. The microwave oven heating food packaging bag according to claim 1, characterized in that, The upper and lower antennae holes converge at the collecting hole and form a horizontal "Y" shape. The intersection of the extension of the center line of the upper antennae hole and the outer edge of the corresponding end of the bag body is within the coverage of the collecting hole. The intersection of the extension of the center line of the lower antennae hole and the outer edge of the corresponding end of the bag body is within the coverage of the collecting hole.
3. The microwave oven heating food packaging bag according to claim 2, characterized in that, The angle between the centerline of the upper antennal hole and the centerline of the lower antennal hole is 60°~120°.
4. The microwave oven heating food packaging bag according to claim 3, characterized in that, The third edge is in the shape of a "3" or a reversed "3".
5. The microwave oven heating food packaging bag according to claim 4, characterized in that, The width of the third sealing edge perpendicular to the extension direction is 1 / 6 to 1 / 2 of the width of the first sealing edge in the left-right direction.
6. The microwave oven heating food packaging bag according to claim 1, characterized in that, The bottom bag body is folded in the vertical direction to form a front fold bottom bag and a back fold bottom bag. The front side of the front fold bottom bag is connected to the back side of the front front bag by a second sealing edge, and the back side of the back fold bottom bag is connected to the front side of the back rear bag by a second sealing edge. The second sealing edge is distributed on the bottom bag body along the outer periphery of the bottom bag body when it is in the unfolded state.
7. The microwave oven heating food packaging bag according to claim 6, characterized in that, The bottom bag body has a fourth sealing edge at both the left and right ends, and the rear side of the front fold bottom bag and the front side of the rear fold bottom bag are connected by the fourth sealing edge.
8. The microwave oven heating food packaging bag according to claim 7, characterized in that, The fourth edge seal is at a predetermined distance from the lower end of the bottom bag body.
9. The microwave oven heating food packaging bag according to claim 1, characterized in that, At least one of the left and right ends of the bag body has an easy-tear opening.
10. The microwave oven heating food packaging bag according to claim 9, characterized in that, The tear opening is located in the vertical direction between the pressure relief unit and the first sealing edge at the upper end of the bag body.