Pressure relief container and box body for heating food

Abstract

The invention provides a pressure relief container for heating food and a box body. The container for heating food comprises a bottom surface, a side wall, a peripheral part, a raised line and a groove, the peripheral part is connected with the side wall and comprises a peripheral plane, an inner edge and an outer edge. The protruding strips protrude out of the peripheral plane, and the extending direction of the protruding strips is parallel to the extending direction of the peripheral plane. The raised line has a top surface parallel to the peripheral plane. The groove is located on the peripheral plane, the groove is in contact with the inner edge or the outer edge, and at least part of the groove is overlapped with the protruding strip. In addition, the invention also relates to a box body with the container.

Description

Technical Field

[0001] The present invention relates to a container for heating food, and more particularly to a container for heating food in a microwave. The present invention also relates to a box having the above container. Background Art

[0002] In response to the modern people's pursuit of convenience and fast-paced lifestyle, most convenience stores provide refrigerated / frozen meal boxes containing food. Such meal boxes can be quickly heated up by microwaves when needed, so that hot food can be enjoyed in a short time.

[0003] Such lunch boxes usually isolate the external environment from the food inside the lunch box by providing a sealing film on the lunch box, so as to reduce the influence of the external environment and preserve the food inside. Summary of the invention

[0004] However, since such lunch boxes need to be heated, when the lunch boxes are heated, the water contained in the food inside the container will be converted into steam, so the pressure inside the container will also increase. Generally speaking, in order to avoid excessive pressure accumulation inside the container during heating, it is necessary to tear off part of the sealing film before performing heating procedures such as microwaves, or use a sharp object to cut an opening on the sealing film to avoid pressure accumulation. However, if the sealing film is not opened / cut open in advance for the sake of convenience, or is forgotten, the lunch box may explode from the side, causing the food inside to splash onto the inner wall of the microwave oven, etc. In addition to causing food loss and subsequent cleaning problems, this situation will further raise safety concerns if the side explosion occurs when a person is holding it.

[0005] In order to solve the above problems, the present case provides a container that still has a pressure relief function in a sealed state to solve the aforementioned problems. More specifically, the present case provides a container for heating food, which includes a bottom surface, a side wall, a peripheral portion and a pressure relief protrusion. The side wall is in contact with the bottom surface, and the side wall and the bottom surface form a accommodating space connected to the outside of the container. The peripheral portion is connected to the side wall and surrounds the accommodating space, and the peripheral portion includes a peripheral plane, an inner edge, an outer edge and a pressure relief structural area. The inner edge and the outer edge are respectively connected to the peripheral plane, the inner edge is located on the side of the peripheral plane close to the accommodating space, the outer edge is located on the side of the peripheral plane away from the accommodating space, and the pressure relief structural area is located on the peripheral plane. The pressure relief protrusion is located in the pressure relief structural area, the pressure relief protrusion contacts the inner edge, the pressure relief protrusion includes a pressure relief curved surface, and the pressure relief curved surface is connected to the peripheral plane. When the peripheral plane contacts the sealing film to seal the accommodating space, the pressure relief curved surface also contacts the sealing film, so that a gap is formed between the pressure relief curved surface and the peripheral plane and the sealing film.

[0006] Accordingly, by making the peripheral plane of the container for contacting the sealing film protrude with a pressure relief protrusion, because the pressure relief protrusion has a pressure relief curved surface for contacting the sealing film, when the container is attached to the sealing film, since the adhesion effect of the sealing film on the curved surface is relatively worse than the adhesion effect of the sealing film on the peripheral plane, and the curved surface and the flat surface are not easy to adhere to each other, the sealing film will generate a pseudo-adhesion area (an area with relatively low adhesion of the sealing film) on the pressure relief protrusion and / or around the pressure relief protrusion, especially a gap will be formed between the pressure relief curved surface and the peripheral plane.

[0007] In addition, the present case provides another container for heating food, which includes a bottom surface, a side wall, a peripheral portion, a convex strip and a groove. The side wall is connected to the bottom surface, and a storage space connected to the outside of the container is formed between the side wall and the bottom surface. The peripheral portion is connected to the side wall and surrounds the storage space, and the peripheral portion includes a peripheral plane, an inner edge, and an outer edge. The inner edge and the outer edge are respectively connected to the peripheral plane, the inner edge is located on the side of the peripheral plane close to the storage space, and the outer edge is located on the side of the peripheral plane away from the storage space. The convex strip protrudes from the peripheral plane, and the extension direction of the convex strip is parallel to the extension direction of the peripheral plane. The convex strip has a top surface parallel to the peripheral plane. The groove is located on the peripheral plane, the groove is in contact with the inner edge or the outer edge, and the groove at least partially overlaps with the convex strip.

[0008] When the container is attached to the sealing film, the protruding ridges on the peripheral plane can reduce the adhesion between the sealing film and the peripheral plane. In addition, since the peripheral portion has a groove overlapping with the ridges, the groove further reduces the area of ​​the top surface of the ridges, so the groove can further reduce the adhesion between the sealing film and the ridges, thereby forming a pseudo-adhesive area in the area with the grooves.

[0009] Since the adhesive force of the sealing film in the pseudo-adhesive area is relatively low, and the pressure relief protrusion contacts the inner edge of the peripheral portion and is close to the container's accommodating space, when the steam generated in the accommodating space squeezes the sealing film, the steam will enter the weak part of the structure and push the sealing film open. Accordingly, when the pressure increases due to the steam generated in the accommodating space inside the sealed container due to heating, the steam can be closer to the outside through the pseudo-adhesive area formed between the pressure relief protrusion and the sealing film, and can be discharged more easily, so that the container still has the pressure relief function in the sealed state.

[0010] Furthermore, the present invention also provides a box body, which includes the container mentioned above and a sealing film, which is adhered to the peripheral plane and the pressure relief curved surface of at least one pressure relief protrusion, or adhered to the peripheral plane and the top surface, so as to seal, for example, food in the accommodating space of the container.

[0011] The detailed features and advantages of the present invention will be described in detail in the following implementation modes, and a person having ordinary knowledge in the technical field to which the present invention belongs can understand the technical content of the present invention and implement it accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional diagram of a container according to an embodiment of the present case;

[0013] Figure 2 yes Figure 1 A partial enlarged view of the container;

[0014] Figure 3A It is Figure 2 When observing from the accommodation space toward the pressure relief protrusion (i.e. along the Figure 2 Side view of the pressure relief protrusion (viewed from the direction of arrow 3A);

[0015] Figure 3B It is Figure 2 Observe along the extension direction of the peripheral plane (i.e. along Figure 2 A side view of the pressure relief protrusion of the pressure relief protrusion (observed in the direction of arrow 3B);

[0016] Figure 4 yes Figure 2 A partial enlarged top view of the container in FIG.

[0017] Figure 5 In Figure 5 -(a-1) to Figure 5 - (a-4) is a partially enlarged top view of a container according to multiple embodiments; Figure 5 -(b-1) to Figure 5 - (b-4) is a partially enlarged stereoscopic view of the container corresponding to the aforementioned figures;

[0018] Figure 6 for Figure 1 A partial enlarged view of the container;

[0019] Figure 7 is a partially enlarged three-dimensional view of a container according to another embodiment of the present invention;

[0020] Figure 8 is a partially enlarged three-dimensional view of a container according to another embodiment of the present invention;

[0021] Fig. 9 In Fig. 9 - (1) is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention, Fig. 9 -(2) From the accommodation space to Fig. 9 - (1) A side view of the pressure relief protrusion observed from the pressure relief protrusion;

[0022] Fig.10 is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0023] Fig.11is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0024] Fig.12 is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0025] Fig.13 is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0026] Fig.14 In Fig.14 -(1) to Fig.14 - (3) are partial enlarged stereoscopic views of containers according to another embodiment of the present invention;

[0027] Fig.15 In Fig.15 - (1) is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention, Fig.15 -(2) Yes Fig.15 - a partial enlarged top view of the container shown in (1);

[0028] Fig.16 In Fig.16 - (1) is a partially enlarged top view of a container according to another embodiment of the present invention, Fig.16 -(2) Yes Fig.16 - an enlarged perspective view of a portion of the container shown in (1);

[0029] Fig.17 is a partially enlarged top view of a container according to another embodiment of the present case;

[0030] Fig.18 is a partially enlarged top view of a container according to another embodiment of the present case;

[0031] Fig.19 is a partially enlarged top view of a container according to another embodiment of the present case;

[0032] Fig. 20 is a partially enlarged top view of a container according to another embodiment of the present case;

[0033] Fig.21 is a partially enlarged top view of a container according to another embodiment of the present case;

[0034] Fig. 22 is a partially enlarged top view of a container according to another embodiment of the present case;

[0035] Fig.23 is a partially enlarged top view of a container according to another embodiment of the present case;

[0036] Fig.24 is a partially enlarged top view of a container according to another embodiment of the present case;

[0037] Fig.25 is a three-dimensional diagram of a container according to an embodiment of the present case;

[0038] Fig.26 yes Fig.25 A partial enlarged stereoscopic view of the container;

[0039] Fig. 27 yes Fig.25 A partial enlarged top view of the container;

[0040] Fig.28 is a three-dimensional diagram of a container according to an embodiment of the present case;

[0041] Fig.29 yes Fig.28 A partial enlarged stereoscopic view of the container;

[0042] Fig.30 yes Fig.28 A partial enlarged top view of the container.

[0043]

Explanation of symbols

[0044] 1: Container

[0045] 101: Bottom

[0046] 102: Side wall

[0047] 103: Accommodation space

[0048] 104: Peripheral part

[0049] 1041: Peripheral plane

[0050] 1041a: Extension direction

[0051] 1042: Inner Edge

[0052] 1043: Outer Edge

[0053] 1044: Pressure relief structure area

[0054] 105: Pressure relief bump

[0055] 105a: Pressure relief channel

[0056] 1051: Pressure relief surface

[0057] 1052: Top

[0058] 1053: Additional Surface

[0059] 106,106': Auxiliary pressure relief bump

[0060] 106a: Auxiliary pressure relief channel

[0061] 1061: Auxiliary pressure relief surface

[0062] 107: convex strip

[0063] 1071: Top

[0064] 108: Groove

[0065] 108a: first groove

[0066] 108a1: protrusion

[0067] 108b: second groove

[0068] 109: Depression

[0069] A, B, C: dotted box

[0070] I1, I2, I3, I4: intersection points

[0071] L: Straight line

[0072] L1, L3: Maximum width

[0073] L2: Distance

[0074] L4: Shortest distance

[0075] W1: Width

[0076] W2: Shortest distance

[0077] W3,W4: Width

[0078] P: Symmetry plane DETAILED DESCRIPTION

[0079] Various embodiments are provided below to explain the present invention in detail. However, the embodiments are only used as examples for illustration and are not intended to limit the scope of the present invention. The same reference numerals in the drawings will be used to represent the same or similar elements.

[0080] In this document, unless the context specifically limits the use of an article, "a", "an" and "the" may refer to a single or multiple items. It should be further understood that "including", "having" and similar words used in this document refer to the features, regions, integers, steps, operations, elements and / or components described herein, but do not exclude the described or additional features, regions, integers, steps, operations, elements, components, and / or groups thereof.

[0081] [Category 1 Implementation Aspects]

[0082] See also Figure 1 , Figure 1It is a three-dimensional diagram of a container 1 according to an embodiment of the present case. In this embodiment, the container 1 for heating food includes a bottom surface 101, a side wall 102 in contact with the bottom surface 101, and a peripheral portion 104. The side wall 102 and the bottom surface 101 together form a containing space 103 for containing, for example, food, and the peripheral portion 104 surrounds the containing space 103. The container 1 has an opening on the opposite side of the bottom surface 101, and when the container 1 has not yet been sealed, the containing space 103 is connected to the outside of the container 1 through the opening. The peripheral portion 104 has a peripheral plane 1041 for contacting the sealing film when the container 1 is sealed. Since the peripheral portion 104 is mainly to provide the peripheral plane 1041, the peripheral portion 104 can completely surround the containing space 103, or it can be discontinuously surrounding the containing space 103, as long as the required peripheral plane 1041 is provided. In the case Figure 1 In the illustrated embodiment, the peripheral portion 104 completely and continuously surrounds the accommodating space 103 . Since it has a relatively large peripheral plane 1041 , it can provide a better adhesion effect between the container 1 and the sealing film.

[0083] although Figure 1 The container 1 in the top view is roughly a rounded rectangle, but the present invention does not limit the shape of the container 1. The container 1 can be roughly circular, rectangular or other polygonal in the top view according to actual needs. Figure 1 In the illustrated embodiment, although the area of ​​the bottom surface 101 of the container 1 is approximately equal to the opening area of ​​the accommodating space 103 , the area of ​​the bottom surface 101 may be smaller or larger than the opening area of ​​the accommodating space 103 according to actual implementation requirements.

[0084] Please continue reading Figure 1 Also see Figure 2 , Figure 2 yes Figure 1 Heating a portion of the food container 1 (i.e. Figure 1 In this embodiment, the peripheral plane 1041 of the peripheral portion 104 has an inner edge 1042 close to the accommodating space 103 and an outer edge 1043 away from the accommodating space 103, and the peripheral plane 1041 has a pressure relief protrusion 105 away from the bottom surface 101 and protruding from the peripheral plane 1041, and the pressure relief protrusion 105 contacts the inner edge 1042 of the peripheral portion 104. In addition, the pressure relief protrusion 105 has a pressure relief curved surface 1051 for contacting the sealing film, and the pressure relief curved surface 1051 is connected to the peripheral plane 1041.

[0085] To further explain the shape of the pressure relief protrusion 105 in this embodiment, please refer to Figure 3A , Figure 3B as well as Figure 4 .in, Figure 3A It is Figure 2A side view of the pressure relief protrusion 105 viewed from the accommodating space 103 toward the pressure relief protrusion 105; Figure 3B It is Figure 2 A side view of the pressure relief protrusion 105 in which the pressure relief protrusion 105 is observed along the extension direction 1041a of the peripheral plane 1041; Figure 4 is Figure 2 1 is a partial enlarged top view of the container 1. In this embodiment, as Figure 3A , Figure 3B As shown, the pressure relief protrusion 105 is a hemispherical body protruding from the peripheral plane 1041 and has a curved surface connected to the peripheral plane 1041; Figure 4 As shown, the pressure relief protrusion 105 is in contact with the inner edge 1042 of the peripheral portion 104 .

[0086] Please continue reading Figure 3A , Figure 3B In some embodiments, Figure 3A As shown in FIG. 1 , the shape of the pressure relief protrusion 105 can also be regarded as that when the pressure relief protrusion 105 is observed from the accommodation space 103, the left and right contours defined by the highest point of the pressure relief protrusion 105 to its leftmost end and the highest point of the pressure relief protrusion 105 to its rightmost end both have at least a portion of convex curves connected to the peripheral plane 1041. When the pressure relief protrusion 105 is observed from the side along the extension direction 1041a of the peripheral plane 1041, as shown in FIG. Figure 3B As shown, the contour formed from the highest point of the pressure relief protrusion 105 toward the outer edge 1043 to the lowest point of the pressure relief protrusion 105 also at least partially has a convex curve connected to the peripheral plane 1041 .

[0087] Please continue reading Figure 2 , Figure 3A and Figure 3B In some embodiments, when the container 1 is to be sealed to seal the accommodating space 103, the plastic sealing film can be hot-pressed from top to bottom onto the peripheral plane 1041 of the peripheral portion 104 of the container 1 by a sealing machine or other device. Since the pressure relief protrusion 105 protrudes from the peripheral plane 1041 in a direction away from the bottom surface 101, the sealing film will also contact the pressure relief curved surface 1051 on the pressure relief protrusion 105 when the film is sealed; however, since the adhesion effect of the sealing film on the curved surface is relatively worse than the adhesion effect of the sealing film on the peripheral plane 1041, and the sealing film is not easy to adhere to the connection between the curved surface and the peripheral plane 1041, when the container 1 is to be sealed to seal the accommodating space 103, the sealing film will generate a pseudo-adhesion area (i.e., an area with relatively low adhesion of the sealing film) on and / or around the pressure relief protrusion 105.

[0088] Since the adhesion of the sealing film in the pseudo-adhesive area is relatively low (for example, a gap is formed between the pressure relief curved surface 1051 and the peripheral plane 1041 and the sealing film), and since the pressure relief protrusion 105 contacts the inner edge 1042 of the peripheral portion 104 and is close to the accommodating space 103 of the container 1, when the steam generated by heating in the accommodating space 103 squeezes the sealing film, the steam will enter the weak part of the structure and push the sealing film open. In other words, a pressure relief path will be formed around the pressure relief protrusion 105. Accordingly, when the internal pressure of the sealed container 1 increases due to the steam generated by heating, the steam can move toward the outside of the container 1 through the pseudo-adhesive area formed between the pressure relief protrusion 105 and the sealing film and can be discharged more easily, so that the container 1 still has a pressure relief function in the sealed state.

[0089] In the aforementioned embodiment, the shape of the projection of the pressure relief protrusion 105 on the peripheral plane 1041 is circular. However, as long as the pressure relief protrusion 105 contacts the inner edge 1042 of the peripheral portion 104 and has a pressure relief curved surface 1051 for contacting the sealing film, the shape of the projection of the pressure relief protrusion 105 on the peripheral plane 1041 is not particularly limited. For example, refer to Figure 5 , among which the top Figure 5 -(a-1) to Figure 5 - (a-4) is a partial enlarged top view of the container 1 in different embodiments, and the lower row Figure 5 -(b-1) to Figure 5 - (b-4) is a partially enlarged stereoscopic view of the container 1 corresponding to the above-mentioned figures, which is used to assist understanding Figure 5 -(a-1) to Figure 5 -(a-4) The three-dimensional shape of each pressure relief protrusion 105. Figure 5 In Figure 5 -(a-1) to Figure 5 -(a-4) As shown, the shape of the projection of the pressure relief protrusion 105 on the peripheral plane 1041 can also be a semicircular shape. Figure 5 -(a-1)〕, semi-elliptical〔as shown Figure 5 -(a-2), Figure 5 -(a-3)〕or oval〔as shown Figure 5 -(a-4)〕.

[0090] As mentioned above, please refer to Figure 1Since the pressure relief protrusion 105 can be used to help the container 1 release pressure, the area on the peripheral plane 1041 with the pressure relief protrusion 105 can be regarded as a pressure relief structural area 1044 with a pressure relief structure; in other words, the pressure relief structural area 1044 is a custom area, which is convenient for describing the subsequent overall structure, and its range can be any size on the peripheral plane 1041, as long as there is a pressure relief protrusion 105 in the area. More than one pressure relief structural area 1044 can be set on the peripheral plane 1041 according to needs. For example, if Figure 1 As shown, in this embodiment, the peripheral plane 1041 can be regarded as having two pressure relief structural areas 1044, which are respectively arranged on the peripheral plane 1041 at the diagonal positions of the container 1. It should be noted that, although in this embodiment, the structures between the two pressure relief structural areas 1044 are the same, because the pressure relief structure provided in this case can have a variety of forms, the structures between the multiple pressure relief structural areas 1044 on the peripheral plane 1041 of this case can also be different from each other.

[0091] In addition, the pressure relief structure area 1044 may be located at any position on the peripheral plane 1041. However, in some embodiments, such as Figure 1 As shown, the pressure relief structure area 1044 can be staggered with the gripping portion of the container 1 that is preset for the user to grasp to assist in tearing off the sealing film (for example, the pressure relief protrusion 105 is arranged on the peripheral plane 1041 on the outside without the gripping portion) to prevent the user's hand from contacting the steam discharged through the pressure relief structure area 1044, thereby reducing the possibility of interference to the user or causing burns.

[0092] The following will further illustrate the details or other aspects of the pressure relief protrusion 105 serving as the pressure relief structure in the pressure relief structure area 1044 by way of example.

[0093] Please continue reading Figure 2 See also Figure 6 . Figure 6 as Figure 2 Also Figure 1 The enlarged partial view of the container 1 can also be regarded as a three-dimensional view of the pressure relief protrusion 105. In this embodiment, the pressure relief protrusion 105 is bilaterally symmetrical. That is, the pressure relief protrusion 105 has a symmetry plane P, and the symmetry plane P is perpendicular to the peripheral plane 1041 and the extension direction 1041a of the peripheral plane 1041. By making the pressure relief protrusion 105 bilaterally symmetrical, the pseudo-adhesion area (or pressure relief path) formed by the sealing film around the pressure relief protrusion 105 can also be roughly bilaterally symmetrical, thereby making the left and right sides of the pressure relief protrusion 105 have similar pressure relief rates, thereby reducing the uneven expansion of the two sides of the pressure relief protrusion 105 when the container 1 is in the sealed state.

[0094] Next, please refer to Figure 7, which is a partially enlarged stereoscopic view of a container 1 according to another embodiment of the present invention. Figure 2 In the embodiment shown, the pressure relief protrusion 105 is a hemisphere as a whole, so its top has only a vertex; in other embodiments, it can be as follows Figure 7 As shown, the pressure relief protrusion 105 has a top surface 1052 farthest from the peripheral plane 1041, and the top surface 1052 is parallel to the peripheral plane 1041. By making the pressure relief protrusion 105 have a top surface 1052 parallel to the peripheral plane 1041, the fit between the sealing film and the pressure relief protrusion 105 can be increased, and the adhesion between the sealing film and the pressure relief protrusion 105 can be adjusted.

[0095] Please refer to Figure 4 In the above-mentioned embodiment, the pressure relief protrusion 105 only contacts the inner edge 1042 of the peripheral plane 1041, but does not contact the outer edge 1043 of the peripheral plane 1041. At this time, part of the peripheral plane 1041 will still remain between the pressure relief protrusion 105 and the outer edge 1043 of the peripheral plane 1041. Accordingly, when the container 1 is to be sealed, since the outer side of the pressure relief protrusion 105 still has a flat portion, the sealing film can have better adhesion with this part, so that the container 1 can maintain a certain adhesion effect between the pressure relief structure area 1044 and the sealing film while having a pressure relief structure, and will not be easily separated, so that the container 1 can be used to accommodate foods that are rich in water, soup, etc. that require better sealing. In other embodiments, the peripheral plane 1041 between the pressure relief protrusion 105 and the outer edge 1043 of the peripheral plane 1041 does not have any depressions or holes below the peripheral plane 1041 or protrusions above the peripheral plane 1041, so that the outer side of the pressure relief protrusion 105 has a complete plane.

[0096] Please continue reading Figure 4 In some embodiments, the peripheral plane 1041 has a width W1 at the pressure relief protrusion 105, and there is a shortest distance W2 between the pressure relief protrusion 105 and the outer edge 1043 of the peripheral plane 1041, and the shortest distance W2 is equal to or less than half of the width W1 of the peripheral plane 1041. With the above structure, since there is no excessive peripheral plane 1041 outside the pressure relief protrusion 105, the sealing film will not be too tightly attached to the outer side of the pressure relief protrusion 105, and it can be ensured that the steam passing through the pressure relief path formed by the pressure relief protrusion 105 can be discharged more smoothly.

[0097] In other embodiments, Figure 8As shown, the pressure relief protrusion 105 not only contacts the inner edge 1042 of the peripheral plane 1041, but also contacts the outer edge 1043 of the peripheral plane 1041. Since there is almost no flat portion between the pressure relief protrusion 105 and the outer edge 1043 of the peripheral plane 1041, the structure will minimize the adhesion between the pressure relief structure area 1044 and the sealing film. When, for example, there is only food with less soup in the accommodating space 103 and high sealing is not required, the structure can make it easier to tear off the sealing film here to avoid the sealing film remaining on the container 1.

[0098] Next, please refer to Fig. 9 ,in Fig. 9 - (1) is a partially enlarged stereoscopic view of a container 1 according to another embodiment of the present invention, Fig. 9 - (2) from the accommodation space 103 to Fig. 9 -(1) is a side view of the pressure relief protrusion 105 observed. In some embodiments, the pressure relief protrusion 105 may have other curved surfaces in addition to the pressure relief curved surface 1051 connected to the peripheral plane 1041. For example, Fig. 9 As shown, in this embodiment, the pressure relief protrusion 105 has, in addition to the pressure relief curved surface 1051, an additional curved surface 1053 that is not connected to the peripheral plane 1041. The additional curved surface 1053 can be used to further reduce the adhesion between the sealing film and the pressure relief protrusion 105, thereby adjusting and obtaining a desired attachment effect.

[0099] Next, please refer to Fig.10 , which is a partially enlarged stereoscopic view of a container 1 according to another embodiment of the present invention. In some embodiments, a plurality of pressure relief protrusions 105 may be provided in the pressure relief structural area 1044. For example, Fig.10 As shown, the pressure relief structure area 1044 may have two adjacent pressure relief protrusions 105. It should be noted that the "adjacent" mentioned here is used to indicate that there is no other pressure relief protrusion 105 between the two pressure relief protrusions 105 in the extension direction 1041a of the peripheral plane 1041. Since there is a space between the two adjacent pressure relief protrusions 105, and the steam will also pass through this space when passing through the pseudo-adhesion area formed between the pressure relief protrusion 105 and the sealing film, the two adjacent pressure relief protrusions 105 can be regarded as forming a channel for steam to pass through. In other words, there is a pressure relief channel 105a between the pressure relief curved surfaces 1051 of the two pressure relief protrusions 105.

[0100] For further information, see Fig.11, which is a partially enlarged stereoscopic view of a container 1 according to another embodiment of the present invention. In some embodiments, two adjacent pressure relief protrusions 105 are also connected to each other, and when the two adjacent pressure relief protrusions 105 are connected to each other, the narrowest pressure relief channel 105a that can be formed by the two pressure relief protrusions 105 can be formed, so that the steam passing through the pressure relief channel 105a is more concentrated, so that the discharge direction of the steam can be better predicted, which is helpful for the design of the container 1, for example, to make the steam outlet direction away from the user's operation / holding area, etc.

[0101] It should be noted that if there are multiple pressure relief bumps 105 in the pressure relief structural area 1044, the shapes of the pressure relief bumps 105 may be different. For example, when there are multiple pressure relief bumps 105 in the pressure relief structural area 1044, the pressure relief bumps 105 may have different heights (the shortest distance between the peripheral plane 1041 and the highest point of the pressure relief bump 105), different profiles in the side view, and / or different profiles in the top view. However, if the pressure relief bumps 105 in the pressure relief structural area 1044 all have the same shape, it can not only improve the manufacturing convenience, but also help to more accurately predict the discharge direction of the steam.

[0102] On the other hand, see Fig.12 , Fig.13 , each of which is a partial enlarged stereoscopic view of a container 1 according to another embodiment of the present invention. In some embodiments, Fig.12 As shown, the pressure relief structure area 1044 may have an auxiliary pressure relief protrusion 106, which has basically the same structural features as the aforementioned pressure relief protrusion 105 (i.e., the auxiliary pressure relief protrusion 106 is also away from the bottom surface 101 and protrudes from the peripheral plane 1041, and has an auxiliary pressure relief curved surface 1061 for contacting the sealing film), but does not contact the inner edge 1042 of the peripheral plane 1041. Apart from this, there is no special restriction on the location of the auxiliary pressure relief protrusion 106. For example, the auxiliary pressure relief protrusion 106 can be separated from the pressure relief protrusion 105 (e.g., Fig.12 as shown) or connected (as shown Fig.13 As shown), the auxiliary pressure relief protrusion 106 may or may not contact the outer edge 1043 of the peripheral plane 1041. Fig.12 In the embodiment, the auxiliary pressure relief protrusion 106 does not contact the outer edge 1043 of the peripheral plane 1041, but Fig.13 In the embodiment, the auxiliary pressure relief protrusion 106 is in contact with the outer edge 1043 of the peripheral plane 1041 .

[0103] In some embodiments, the auxiliary pressure relief protrusion 106 can be used to cooperate with the pressure relief protrusion 105. For example, see Fig.14 , among which Fig.14 -(1) to Fig.14- (3) are partial enlarged stereograms of containers 1 according to another embodiment of the present invention. Fig.14 In the embodiment shown in FIG. 1-(1), the pressure relief structure area 1044 has two adjacent pressure relief protrusions 105 and one auxiliary pressure relief protrusion 106, wherein the two pressure relief protrusions 105 are arranged along the extension direction 1041a of the peripheral plane 1041, and when observing from the accommodating space 103 toward the two pressure relief protrusions 105, at least a portion of the auxiliary pressure relief protrusion 106 is located between the two adjacent pressure relief protrusions 105 (for example, in FIG. Fig.14 -(1) In the embodiment shown, the auxiliary pressure relief protrusion 106 is entirely located between the two adjacent pressure relief protrusions 105). Through the above configuration, the auxiliary pressure relief protrusion 106 can be at least partially disposed in the steam flow discharged through the pressure relief channel 105a, dispersing the steam flow discharged through the pressure relief channel 105a, thereby reducing the steam exhaust intensity, which helps to reduce the chance of injury when the user holds or accidentally touches this area.

[0104] Next, please refer to Fig.14 -(2). Similar to Fig.14 -(1) is an embodiment shown in FIG. Fig.14 -(2) In the embodiment shown, two adjacent pressure relief protrusions 105 in the pressure relief structural area 1044 are also connected to each other. At this time, a virtual straight line L passing through the connection point of the two pressure relief protrusions 105 and perpendicular to the extension direction 1041a of the peripheral plane 1041 will also pass through the auxiliary pressure relief protrusion 106. As mentioned above, when the two adjacent pressure relief protrusions 105 are connected to each other, the narrowest pressure relief channel 105a can be formed, and the steam passing through the pressure relief channel 105a is more concentrated at this time; through this configuration, the steam flow can be concentrated and guided in the front section to confirm the approximate area of ​​the gas outlet, and the discharged steam flow can be dispersed in the end section to reduce the chance of injury when the user holds or accidentally touches this area.

[0105] Next, please refer to Fig.14 -(3). Further, similar to Fig.14 -(2) is an embodiment shown in FIG. Fig.14 In the embodiment shown in (3), the auxiliary pressure relief protrusion 106 is respectively connected to the two pressure relief protrusions 105. In other words, the auxiliary pressure relief protrusion 106 is closest to the two pressure relief protrusions 105 and also closest to the pressure relief channel 105a formed by the two pressure relief protrusions 105. Accordingly, through this configuration, the auxiliary pressure relief protrusion 106 can effectively disperse the steam flow discharged from the pressure relief channel 105a.

[0106] See also Fig.15 ,in Fig.15 - (1) is a partially enlarged stereoscopic view of a container 1 according to another embodiment of the present invention, Fig.15 -(2) Yes Fig.15 -(1) is a partial enlarged top view of the container 1. In some embodiments, the auxiliary pressure relief protrusion 106 and the pressure relief protrusion 105 may have different shapes. For example, the auxiliary pressure relief protrusion 106 and the pressure relief protrusion 105 may have different heights (the shortest distance between the peripheral plane 1041 and the highest point of the pressure relief protrusion 105), different profiles in the side view and / or different profiles in the top view. For example, Fig.15 As shown in (2), the auxiliary pressure relief protrusion 106 has an elliptical outline in a top view, while the two pressure relief protrusions 105 both have a circular outline. Since the auxiliary pressure relief protrusion 106 is at least partially disposed between the two adjacent pressure relief protrusions 105 when viewed from the accommodation space 103, the auxiliary pressure relief protrusion 106 can also achieve the aforementioned purpose of dispersing the steam flow discharged through the pressure relief channel 105a.

[0107] Please continue reading Fig.15 -(2). Further, in some embodiments, the maximum width L1 of the auxiliary pressure relief protrusion 106 in the extension direction 1041a of the peripheral plane 1041 is not less than the distance L2 between the centers of the two pressure relief protrusions 105, and is not greater than the maximum width L3 of the two pressure relief protrusions 105 in the extension direction 1041a of the peripheral plane 1041. Through the above configuration, it can be ensured that the steam flow entering from between the two pressure relief protrusions 105 can be effectively dispersed (that is, the auxiliary pressure relief protrusion 106 is large enough to effectively disperse the incoming steam flow), while the steam flow is not over-dispersed or even cannot be discharged smoothly.

[0108] Next, please refer to Fig.16 ,in Fig.16 - (1) is a partially enlarged top view of a container 1 according to another embodiment of the present invention, Fig.16 -(2) Yes Fig.16 - (1) is a partially enlarged stereoscopic view of the container 1, which can be used as Fig.16 -(1) is an auxiliary schematic diagram. In some embodiments, the pressure relief structure area 1044 may have a plurality of pressure relief protrusions 105 and a plurality of auxiliary pressure relief protrusions 106 at the same time. By forming an auxiliary pressure relief channel 106a that communicates with the pressure relief channel 105a between the plurality of auxiliary pressure relief protrusions 106, the pressure relief channel 105a can be extended to further guide the steam flow discharged from the pressure relief channel 105a. For example, in Fig.16In the embodiment shown, the pressure relief structure area 1044 has two adjacent and connected pressure relief protrusions 105 and two adjacent and connected auxiliary pressure relief protrusions 106; and the two auxiliary pressure relief protrusions 106 are also connected to one of the two pressure relief protrusions 105. Based on this, in addition to the pressure relief channel 105a formed between the pressure relief curved surfaces 1051 of the two pressure relief protrusions 105, there is another auxiliary pressure relief channel 106a between the auxiliary pressure relief curved surfaces 1061 of the two auxiliary pressure relief protrusions 106, and the pressure relief channel 105a is connected to the auxiliary pressure relief channel 106a. It should be noted that as long as the steam flow discharged from the pressure relief channel 105a can flow into the auxiliary pressure relief channel 106a, it is "connected" as described herein.

[0109] Next, please refer to Fig.17 , which is a partially enlarged top view of a container 1 according to another embodiment of the present invention. In other embodiments, such as Fig.17 As shown, in the area enclosed by two adjacent and connected auxiliary pressure relief protrusions 106 and two adjacent and connected pressure relief protrusions 105, there is an additional auxiliary pressure relief protrusion 106' (the "adjacent" in the "adjacent auxiliary pressure relief protrusions 106" also means that there are no other auxiliary pressure relief protrusions 106 between the two auxiliary pressure relief protrusions 106 on the extension direction 1041a of the peripheral plane 1041). Similar to the above, by providing an auxiliary pressure relief protrusion 106' in the flow path formed by the pressure relief channel 105a and the auxiliary pressure relief channel 106a, the steam flow discharged through the pressure relief channel 105a can be dispersed, thereby reducing the intensity of the steam discharged from the auxiliary pressure relief channel 106a, which helps to reduce the chance of injury when the user holds or accidentally touches this area. It is worth noting that since the steam discharged from the pressure relief channel 105a can still flow into the auxiliary pressure relief channel 106a, Fig.17 In the illustrated embodiment, the pressure relief passage 105a and the auxiliary pressure relief passage 106a are still in communication.

[0110] See also Fig.18 , which is a partially enlarged top view of a container 1 according to another embodiment of the present invention. In some embodiments, Fig.18As shown, another auxiliary pressure relief protrusion 106' is provided in the area surrounded by two adjacent and connected auxiliary pressure relief protrusions 106 and two adjacent and connected pressure relief protrusions 105, and the other auxiliary pressure relief protrusion 106' can be connected with the two peripheral auxiliary pressure relief protrusions 106 and the two peripheral pressure relief protrusions 105 respectively. At this time, the other auxiliary pressure relief protrusion 106' will be closest to these peripheral pressure relief protrusions 105 and auxiliary pressure relief protrusions 106, and will also be closest to the pressure relief channel 105a and the auxiliary pressure relief channel 106a formed by these two pressure relief protrusions 105. Therefore, through the above configuration, the steam flow discharged from the pressure relief channel 105a can be more effectively dispersed and the steam flow rate entering the second gas channel can be slowed down, so as to achieve the aforementioned purpose of reducing the steam intensity discharged from the auxiliary pressure relief channel 106a, which helps to further reduce the probability of injury when the user holds or accidentally touches this area.

[0111] In other embodiments, since the pressure relief channel 105a is not limited to being formed between two connected pressure relief protrusions 105, the auxiliary pressure relief channel 106a is not limited to being formed between two connected auxiliary pressure relief protrusions 106, and the pressure relief channel 105a and the auxiliary pressure relief channel 106a do not need to be directly connected and can communicate with each other; therefore, the two adjacent pressure relief protrusions 105 forming the pressure relief channel 105a do not need to be connected, the two adjacent auxiliary pressure relief protrusions 106 forming the auxiliary pressure relief channel 106a do not need to be connected, and the two adjacent pressure relief protrusions 105 and the two adjacent auxiliary pressure relief protrusions 106 do not need to be connected, all of which can be selected.

[0112] For example, see Fig.19 In some embodiments, two adjacent pressure relief bumps 105 are not connected to each other, two adjacent auxiliary pressure relief bumps 106 are not connected to each other, and the two auxiliary pressure relief bumps 106 are not connected to the two pressure relief bumps 105. In these embodiments, the pressure relief channel 105a is still formed between the two pressure relief bumps 105, and the auxiliary pressure relief channel 106a is still formed between the two auxiliary pressure relief bumps 106. Since the steam discharged from the pressure relief channel 105a can still flow into the auxiliary pressure relief channel 106a, in these embodiments, the pressure relief channel 105a and the auxiliary pressure relief channel 106a are still connected.

[0113] Please continue reading Fig.19 In some embodiments, another auxiliary pressure relief protrusion 106' may be further provided in the area surrounded by the two auxiliary pressure relief protrusions 106 and the two pressure relief protrusions 105 to disperse the steam flow discharged through the pressure relief channel 105a, thereby reducing the steam intensity discharged from the auxiliary pressure relief channel 106a. Fig. 20As shown, another auxiliary pressure relief protrusion 106' can also be connected to the two auxiliary pressure relief protrusions 106 and the two pressure relief protrusions 105 on its periphery, so as to effectively disperse the steam flow discharged from the pressure relief channel 105a and slow down the steam flow rate entering the second gas channel.

[0114] In some embodiments, the pressure relief structure area 1044 may repeatedly have the aforementioned bump configuration. For example, please refer to Fig.21 and Fig. 22 , these two figures are respectively partial enlarged top views of a container 1 according to other embodiments of the present invention. Fig.21 and Fig. 22 The embodiments shown can be regarded as repeatedly having the aforementioned Fig.18 and Fig. 20 Specifically, in the case of Fig.21 In the illustrated embodiment, the pressure relief structural area 1044 on the peripheral plane 1041 has three continuous and sequentially connected pressure relief protrusions 105, and three auxiliary pressure relief protrusions 106 arranged and sequentially connected along the extension direction 1041a of the peripheral plane 1041. In addition, each of the three continuous and sequentially connected pressure relief protrusions 105 is connected to one of the three sequentially connected auxiliary pressure relief protrusions 106. Further, an additional auxiliary pressure relief protrusion 106' is respectively provided in the two areas surrounded by the six connected protrusions, and each additional auxiliary pressure relief protrusion 106' is respectively connected to the two auxiliary pressure relief protrusions 106 and the two pressure relief protrusions 105 on its periphery.

[0115] In such Fig.21 In the embodiment shown, the protrusions are arranged on either side of the peripheral plane 1041 in the extending direction 1041a and have the following Fig.18 In other words, in this embodiment, the protrusions are arranged on either side of the extension direction 1041a and also have the aforementioned configuration of "two adjacent and connected auxiliary pressure relief protrusions 106 and two adjacent and connected pressure relief protrusions 105 enclose an area, in which another auxiliary pressure relief protrusion 106' is arranged, and the other auxiliary pressure relief protrusion 106' is respectively connected to the two peripheral auxiliary pressure relief protrusions 106 and the two peripheral pressure relief protrusions 105". Fig.21 In the embodiment shown, it can be considered that in the pressure relief structure area 1044 on the peripheral plane 1041, there are repeatedly Fig.18 Bump configuration shown.

[0116] See also Fig. 22 , which is a partially enlarged top view of a container 1 according to another embodiment of the present invention. Fig. 22In the embodiment shown, the protrusions are arranged on either side of the peripheral plane 1041 in the extending direction 1041a and have the following Fig. 20 In other words, in this embodiment, the protrusions arranged on either side of the peripheral plane 1041 in the extension direction 1041a also have the aforementioned configuration of "two adjacent but not connected auxiliary pressure relief protrusions 106 and two adjacent but not connected pressure relief protrusions 105 jointly enclose an area, in which another auxiliary pressure relief protrusion 106' is arranged, and the other auxiliary pressure relief protrusion 106' is respectively connected to the two peripheral auxiliary pressure relief protrusions 106 and the two peripheral pressure relief protrusions 105". Accordingly, in the embodiment as Fig. 22 In the embodiment shown, it can be considered that in the pressure relief structure area 1044 on the peripheral plane 1041, there are repeatedly Fig. 20 Bump configuration shown.

[0117] There is no particular limit to the number of times the aforementioned bump configuration is repeated. In addition, although the aforementioned repetitions are all implemented in a manner of "overlapping between configurations", the aforementioned configurations may also be repeated in a manner of non-overlapping. Fig. 22 As an example of the embodiment shown in the figure, the two groups on both sides are as follows Fig. 20 The configuration shown in FIG. 1 shares a middle pressure relief protrusion 105 and an auxiliary pressure relief protrusion 106, so the two groups of pressure relief protrusions 105 and 106 are Fig. 20 The configuration shown in Fig. 22 In some other embodiments, two sets of Fig. 20 The configuration shown is in the pressure relief structure area 1044. At this time, the two groups are as follows Fig. 20 In the configuration shown, there is no shared pressure relief lug 105 and auxiliary pressure relief lug 106 .

[0118] In some embodiments, at least two adjacent auxiliary pressure relief protrusions 106 of the auxiliary pressure relief protrusions 106 closest to the outer edge 1043 of the peripheral plane 1041 are in contact with the outer edge 1043 of the peripheral plane 1041. Fig.23 As shown in the embodiment, it is similar to Fig. 22 In the configuration shown in the figure, the three auxiliary pressure relief protrusions 106 arranged along the extension direction 1041a of the peripheral plane 1041 close to the outer edge 1043 and adjacent to each other are all in contact with the outer edge 1043. Based on this, the auxiliary pressure relief channels 106a formed by the adjacent auxiliary pressure relief protrusions 106 will be closer to the outer edge 1043, so that the steam flow leaving the auxiliary pressure relief channels 106a can be discharged to the outside more easily.

[0119] Next, see Fig.24In some embodiments, the pressure relief structure area 1044 on the peripheral plane 1041 may have multiple aforementioned bump configurations. For example, see Fig.24 In some embodiments, the pressure relief structure area 1044 on the peripheral plane 1041 may have the aforementioned Fig.18 In the case of the configuration, further adding the above-mentioned Fig.13 Specifically, in the case of Fig.24 In the embodiment, the middle of its configuration can be regarded as having Fig.18 The configuration shown in the figure is that "two adjacent and connected auxiliary pressure relief protrusions 106 and two adjacent and connected pressure relief protrusions 105 enclose an area, in which another auxiliary pressure relief protrusion 106' is arranged, and the other auxiliary pressure relief protrusion 106' is respectively connected to the two peripheral auxiliary pressure relief protrusions 106 and the two peripheral pressure relief protrusions 105", and either side of the two sides has a pressure relief protrusion 105 and an auxiliary pressure relief protrusion 106 connected to the pressure relief protrusion 105, and the pressure relief protrusion 105 and the auxiliary pressure relief protrusion 106 are arranged in a direction perpendicular to the extension direction 1041a of the peripheral plane 1041. Through the above configuration, in the above Fig.18 Additional pressure relief paths are added on both sides of the configuration to adjust the steam outlet pattern.

[0120] Please continue reading Fig.24 Furthermore, if it is desired to adjust the steam outflow of the additional pressure relief paths on both sides, additional auxiliary pressure relief bumps 106 ′ may be provided in the area surrounded by two adjacent auxiliary pressure relief bumps 106 and two adjacent pressure relief bumps 105 on both sides.

[0121] In summary, the container 1 of the first embodiment has a pressure relief protrusion 105 protruding from its peripheral plane 1041. When the sealing film is attached to the container 1 to seal the accommodating space 103, since the adhesion effect of the sealing film on the curved surface is relatively worse than that on the peripheral plane 1041, and it is not easy for the curved surface to adhere to the flat surface, the sealing film will generate a pseudo-adhesion area on the pressure relief protrusion 105 and / or around the pressure relief protrusion 105. As mentioned above, since the adhesion force of the sealing film in the pseudo-adhesion area is relatively low, when the steam generated in the accommodating space 103 squeezes the sealing film, the steam will enter the weak part of the structure and push the sealing film there to achieve the pressure relief effect.

[0122] [Category 2 implementation example]

[0123] As one of the second implementation aspects, please refer to Fig.25 , Fig.251 is a three-dimensional diagram of a container 1 according to an embodiment of the present invention. The difference from the first embodiment is that in this embodiment, the peripheral plane 1041 has a convex strip 107 and a concave groove 108. The convex strip 107 protrudes from the peripheral plane 1041, and the concave groove 108 is connected to the inner edge 1042 or the outer edge 1043 (not shown). Fig.25 , but you can refer to Fig.26 , Fig. 27 ), and the groove 108 at least partially overlaps with the ridge 107. This type of specific implementation will be further described below.

[0124] Please continue reading Fig.25 . Similar to Figure 1 In the container, in this embodiment, the container 1 for heating food also includes a bottom surface 101, a side wall 102 connected to the bottom surface 101, and a peripheral portion 104. A receiving space 103 for receiving, for example, food is formed between the side wall 102 and the bottom surface 101, and the peripheral portion 104 surrounds the receiving space 103. The container 1 has an opening on the opposite side of the bottom surface 101, and when the container 1 has not yet been affixed with a sealing film, the receiving space 103 is connected to the outside of the container 1 through the opening. The peripheral portion 104 has a peripheral plane 1041 for contacting the sealing film when the container 1 is affixed with a sealing film. The peripheral portion 104 can completely surround the receiving space 103, or it can discontinuously surround the receiving space 103. In the case Fig.25 In the illustrated embodiment, the peripheral portion 104 completely and continuously surrounds the accommodating space 103 .

[0125] Please continue reading Fig.25 Also see Fig.26 , Fig.26 yes Fig.25 Heating a portion of the food container 1 (i.e. Fig.25 104). In this embodiment, the peripheral plane 1041 of the peripheral portion 104 also has an inner edge 1042 close to the accommodating space 103 and an outer edge 1043 away from the accommodating space 103. The peripheral plane 1041 has a convex strip 107 away from the bottom surface 101 and protruding from the peripheral plane 1041, and the convex strip 107 does not contact the inner edge 1042 and the outer edge 1043. The extension direction of the convex strip 107 is parallel to the extension direction 1041a of the peripheral plane. The convex strip 107 has a top surface 1071, and the top surface 1071 is parallel to the peripheral plane 1041. In this embodiment, the convex strip 107 completely surrounds the accommodating space 103, but it can also surround the accommodating space 103 discontinuously. In addition, a groove 108 is formed on the peripheral plane 1041 . The groove 108 contacts at least one of the inner edge 1042 and the outer edge 1043 , and at least a portion of the groove 108 overlaps with the ridge 107 .

[0126] Please continue reading Fig.25and Fig.26 As mentioned above, the plastic sealing film can be hot-pressed from top to bottom onto the peripheral plane 1041 of the peripheral portion 104 of the container 1 by a sealing machine or other device. In this embodiment, since the peripheral plane 1041 has a protruding ridge 107, when the container 1 is attached to the sealing film, the sealing film will be attached to the peripheral plane 1041 and the top surface 1071 of the ridge 107. As mentioned above, since the ridge 107 forms a step difference on the peripheral plane 1041, the ridge 107 can reduce the adhesion effect between the sealing film and the peripheral plane 1041. In addition, since the peripheral portion 104 has a groove 108 that at least partially overlaps with the ridge 107, the groove 108 further reduces the area of ​​the top surface 1071 of the ridge 107, so the groove 108 can further reduce the adhesion effect between the sealing film and the ridge 107, thereby forming a pseudo-adhesion area of ​​the sealing film in the area where both the ridge 107 and the groove 108 are present. Furthermore, the groove 108, the peripheral plane 1041 and the top surface 1071 of the convex strip 107 are located at three different heights, namely low, middle and high, respectively, so the three can be considered to form a stepped structure together. When the sealing film closes the accommodating space 103 and is attached to the stepped structure, the sealing film will cover the top surface 1071 and be attached to a portion of the peripheral plane 1041. At this time, as mentioned above, the contact area between the top surface 1071 and the sealing film is reduced due to the groove 108, and the contact area between the peripheral plane 1041 and the sealing film is reduced due to the convex strip 107 and the groove 108.

[0127] Since the adhesive force of the sealing film in the pseudo-adhesive area is relatively low, when the steam generated by heating in the accommodating space 103 squeezes the sealing film, the steam can push the sealing film open through the weak part of the structure, so that the container 1 still has the pressure relief function in the sealed state.

[0128] Please continue reading Fig.25 and Fig.26 As mentioned above, since the area with the groove 108 on the convex strip 107 can be used to help the container 1 release pressure, the area with both the convex strip 107 and the groove 108 on the peripheral plane 1041 can be regarded as a pressure relief structure area 1044 with a pressure relief structure. It is worth noting that in some embodiments, the extension direction of the convex strip 107 only needs to be parallel to the extension direction 1041a of the peripheral plane at the pressure relief structure area 1044. In addition, more than one pressure relief structure area 1044 can be set on the peripheral plane 1041 according to needs. For example, Fig.25 As shown, in this embodiment, the peripheral plane 1041 can be regarded as having two pressure relief structural areas 1044, which are respectively arranged on the peripheral plane 1041 on both sides of the container 1.

[0129] Next, see Fig.25 , Fig.26 and Fig. 27 , Fig. 27 yes Fig.25 A partial enlarged top view of the container 1. In this embodiment, the groove 108 extends from the inner edge 1042 to the outer edge 1043, that is, the groove 108 not only contacts the inner edge 1042 but also contacts the outer edge 1043. In addition, the extending direction of the groove 108 is not perpendicular to the extending direction 1041a of the peripheral plane 1041. By extending the groove 108 from the inner edge 1042 to the outer edge 1043, the groove 108 can serve as an additional passage for steam to help adjust the pressure balance inside and outside the container 1; and because the extending direction of the groove 108 is not perpendicular to the extending direction 1041a of the peripheral plane 1041, even if the container 1 contains food that has more moisture and needs to be sealed, the moisture is less likely to flow out of the container 1 compared to the groove that is perpendicular to the extending direction 1041a of the peripheral plane 1041.

[0130] See also Fig.26 and Fig. 27 . In this embodiment, the groove 108 includes a first groove 108a and a second groove 108b. The extension direction of the first groove 108a is different from the extension direction of the second groove 108b, that is, the extension direction of the first groove 108a is not parallel to the extension direction of the second groove 108b. For example, the angle between the extension direction of the first groove 108a and the extension direction of the second groove 108b is 80 degrees to 100 degrees. In this embodiment, the first groove 108a and the second groove 108b intersect to form an intersection I1, and the intersection I1 is located on the convex strip 107. By making the extension direction of the first groove 108a different from the extension direction of the second groove 108b, and making the intersection I1 between the first groove 108a and the second groove 108b located on the convex strip 107, the top surface 1071 of the convex strip 107 can be divided into a plurality of sub-areas, thereby further reducing the adhesion effect between the sealing film and the convex strip 107.

[0131] See also Fig.26 and Fig. 27 In some embodiments, the groove 108 may have a plurality of first grooves 108a having the same extension direction and a plurality of second grooves 108b having the same extension direction. Fig.26 Take the two first grooves 108a and the two second grooves 108b closest to the upper right corner as an example (in Fig. 27 In the figure, the two rightmost first grooves 108a and second grooves 108b are shown. It can be seen that any of the two first grooves 108a will intersect with the two second grooves 108b to form two intersections. Fig.26The first groove 108a at the upper right and the two second grooves 108b at the upper right form intersections I1 and I2 respectively; another first groove 108a and the two second grooves 108b at the upper right form intersections I3 and I4 respectively. By making the plurality of first grooves 108a intersect with the plurality of second grooves 108b, a mesh can be formed between the plurality of grooves 108 to more evenly disperse the steam discharged through these additional channels.

[0132] Please continue reading Fig.26 and Fig. 27 In some embodiments, in addition to the aforementioned situation that "any one of the two first grooves 108a intersects with the two second grooves 108b to form two intersections", further, one of the two intersections is located on the convex strip 107. Fig.26 In the illustrated embodiment, the intersection I1 of the intersection I1 and the intersection I2 is located on the convex strip 107, and the intersection I3 and the intersection I4 of the intersection I4 are located on the convex strip 107. With this arrangement, the top surface 1071 of the convex strip 107 can be divided into independent sub-regions, thereby further reducing the adhesion effect between the sealing film and the convex strip 107. In addition, in some embodiments, the convex strip 107 has a depression 109, and the depression 109 is located between two adjacent first grooves 108a and two adjacent second grooves 108b. In this embodiment, the depression 109 is located on the convex strip 107 in the area surrounded by the intersection I1, the intersection I2, the intersection I3, and the intersection I4, so as to further reduce the area of ​​the top surface 1071 of the convex strip 107 in the area, thereby reducing the adhesion effect between the sealing film and the convex strip 107.

[0133] Another aspect of the pressure relief structure area 1044 will be described below.

[0134] See also Fig.28 , Fig.28 is a three-dimensional diagram of a container 1 according to an embodiment of the present invention. Fig.25 In the embodiment, the container 1 also includes a bottom surface 101, a side wall 102 connected to the bottom surface 101, and a peripheral portion 104. A receiving space 103 for receiving food is formed between the side wall 102 and the bottom surface 101, and the peripheral portion 104 surrounds the receiving space 103. Fig.28 In the illustrated embodiment, the peripheral portion 104 completely and continuously surrounds the accommodating space 103. The peripheral portion 104 has a peripheral flat surface 1041 for contacting the sealing film when the container 1 is attached to the sealing film.

[0135] Please continue reading Fig.28 as well as Fig.29 , Fig.29 yes Fig.28 Heating a portion of the food container 1 (i.e. Fig.25The enlarged stereogram of the dotted line frame C in the figure. Fig.25 Similar to the embodiment in FIG. 1 , in this embodiment, the peripheral plane 1041 also has a convex strip 107 that is away from the bottom surface 101 and protrudes from the peripheral plane 1041, and the convex strip 107 does not contact the inner edge 1042 and the outer edge 1043. The extension direction of the convex strip 107 is parallel to the extension direction 1041a of the peripheral plane. The convex strip 107 has a top surface 1071, and the top surface 1071 is parallel to the peripheral plane 1041. The peripheral plane 1041 has a groove 108, and the groove 108 contacts at least one of the inner edge 1042 or the outer edge 1043, and the groove 108 at least partially overlaps with the convex strip 107.

[0136] Next, please refer to Fig.28 , Fig.29 as well as Fig.30 , Fig.30 yes Fig.28 A partial enlarged top view of the container 1. Fig.25 The difference between the embodiments in the embodiment is that Fig.28 , Fig.29 as well as Fig.30 The groove 108 of the embodiment shown in FIG. 1 includes a first groove 108a and a second groove 108b, wherein the first groove 108a contacts the inner edge 1042 but does not contact the outer edge 1043, and the second groove 108b contacts the outer edge 1043 but does not contact the inner edge 1042. In some embodiments, as Fig.30 As shown, the first groove 108a extends from the inner edge 1042 to the ridge 107, and the second groove 108b extends from the outer edge 1043 to the ridge 107. In this embodiment, the extension direction of the first groove 108a and the extension direction of the second groove 108b are both perpendicular to the extension direction 1041a of the peripheral plane 1041.

[0137] In this embodiment, both the first groove 108a and the second groove 108b extend only to the convex strip 107 without penetrating the convex strip 107, and do not directly connect the inner edge 1042 and the outer edge 1043. Accordingly, when the container 1 is subsequently sealed, the sealing film can still be attached to the portion of the convex strip 107 that does not overlap with the first groove 108a and the second groove 108b. Therefore, even if the extension direction of the first groove 108a and the second groove 108b is perpendicular to the extension direction 1041a of the peripheral plane 1041, the soup or the like contained in the accommodating space 103 will not flow out directly through the first groove 108a or the second groove 108b. However, since the first groove 108a and the second groove 108b still reduce the area of ​​the top surface 1071 of the convex strip 107, a pseudo-adhesive area can still be formed between the sealing film and the convex strip 107 for the steam in the accommodating space 103 to escape.

[0138] Please continue reading Fig.29 as well as Fig.30 . In some embodiments, there is a second groove 108b between two adjacent first grooves 108a. With this arrangement, the steam guided by the two first grooves 108a can be discharged from the adjacent second groove 108b after passing through the pseudo-adhesion area formed by the convex strip 107 and the sealing film. In other words, through the arrangement of "there is a second groove 108b between two adjacent first grooves 108a", the two first grooves 108a and the second groove 108b can form a channel for guiding steam to the outside of the container 1. It should be noted that the "two adjacent first grooves 108a" mentioned here refers to the situation where there is no other first groove 108a between the two first grooves 108a.

[0139] Please continue reading Fig.29 as well as Fig.30 In some embodiments, there is a first groove 108a between two adjacent second grooves 108b. With this arrangement, the steam guided by the first groove 108a can be dispersed to the two adjacent second grooves 108b through the pseudo-adhesive area formed between the convex strip 107 and the sealing film, and then discharged from the two second grooves 108b. Similarly, the "two adjacent second grooves 108b" mentioned here refers to the situation where there is no other second groove 108b between the two second grooves 108b.

[0140] Please continue reading Fig.30 In some embodiments, the width W3 of the first groove 108a is the same as the width W4 of the second groove, but is not limited thereto. In addition, in some embodiments, the shortest distance L4 between the first groove 108a and the second groove 108b is smaller than the width W3 of the first groove 108a. By making the shortest distance L4 between the first groove 108a and the second groove 108b smaller than the width W3 of the first groove 108a, it can be further ensured that the amount of steam guided by the first groove 108a can push open the pseudo-adhesion area formed between the sealing film and the ridge 107 and enter the second groove 108b.

[0141] Please continue reading Fig.30 In some embodiments, the portion where the first groove 108a overlaps with the ridge 107 has a protrusion 108a1, and the protrusion 108a1 extends toward the second groove 108b. By providing the protrusion 108a1, the shortest distance L4 between the first groove 108a and the second groove 108b can be further reduced. Fig.30 As shown, the first groove 108a between two adjacent second grooves 108b may be provided with protrusions 108a1 on both sides thereof.

[0142] In summary, the present invention provides a container 1 that still has a pressure relief function in a sealed state, and the container 1 with a sealed film. In the first embodiment, the container 1 has a pressure relief protrusion 105 protruding from its peripheral plane 1041. Since the pressure relief protrusion 105 has a pressure relief curved surface for contacting the sealing film, when the container 1 is attached to the sealing film to seal the accommodating space 103, the sealing film will have a pseudo-adhesive area on and / or around the pressure relief protrusion 105 because the adhesion effect of the sealing film on the curved surface is relatively worse than that of the sealing film on the peripheral plane 1041, and the curved surface and the flat surface are not easy to adhere to each other.

[0143] In the second embodiment, the container 1 has a protruding ridge 107 on its peripheral plane 1041, which can reduce the adhesion effect between the sealing film and the peripheral plane 1041. In addition, since the peripheral portion 104 has a groove 108 overlapping with the ridge 107, the groove 108 further reduces the area of ​​the top surface 1071 of the ridge 107, so the groove 108 can further reduce the adhesion effect between the sealing film and the ridge 107, thereby forming a pseudo-adhesive area in the area of ​​the ridge 107 having the groove 108.

[0144] Accordingly, when the accommodating space 103 inside the sealed container 1 generates steam due to heating and the pressure increases, the steam can be discharged more easily through the pseudo-adhesive area, so that the container 1 still has a pressure relief function in a sealed state.

[0145] Although the technical contents of the present invention have been disclosed as above in the preferred embodiments, they are not used to limit the present invention. Any slight changes and modifications made by anyone familiar with this technology without departing from the spirit of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be based on the scope defined by the attached claims.

Claims

1. A container for heating food, characterized in that: It contains: a bottom surface; A side wall connected to the bottom surface, wherein a containing space communicating with the outside of the container is formed between the side wall and the bottom surface; a peripheral edge portion connected to the side wall and surrounding the accommodation space, the peripheral edge portion comprising a peripheral edge plane, an inner edge, and an outer edge, the inner edge and the outer edge are respectively connected to the peripheral edge plane, the inner edge is located on a side of the peripheral edge plane close to the accommodation space, and the outer edge is located on a side of the peripheral edge plane away from the accommodation space; a convex strip protruding from the peripheral plane, the extension direction of the convex strip being parallel to the extension direction of the peripheral plane, the convex strip having a top surface, and the top surface being parallel to the peripheral plane; and a groove located on the peripheral plane, the groove being in contact with the inner edge or the outer edge, and the groove at least partially overlapping with the convex strip so that the groove, the peripheral plane and the top surface of the convex strip form a stepped structure; When the sealing film is attached to the stepped structure to seal the accommodating space, the sealing film covers the top surface and is attached to a portion of the peripheral plane.

2. The container according to claim 1, characterized in that The groove extends from the inner edge to the outer edge, and the extending direction of the groove is not perpendicular to the extending direction of the peripheral plane.

3. The container according to claim 2, characterized in that The groove includes a first groove and a second groove, and an extending direction of the first groove is not parallel to an extending direction of the second groove.

4. The container according to claim 3, characterized in that The first groove intersects with the second groove to form an intersection point, and the intersection point is located on the convex strip.

5. The container according to claim 3, characterized in that The groove includes two first grooves and two second grooves, and any one of the two first grooves intersects with the two second grooves to form two intersections.

6. The container according to claim 5, characterized in that One of the two intersection points is located on the convex strip.

7. The container according to claim 6, characterized in that The convex strip has a recess, and the recess is located between the two first grooves and the two second grooves.

8. The container according to claim 1, characterized in that The groove contains: a first groove, the first groove contacts the inner edge but does not contact the outer edge; and A second groove contacts the outer edge but does not contact the inner edge.

9. The container according to claim 8, characterized in that The first groove extends from the inner edge to the convex strip, and the second groove extends from the outer edge to the convex strip.

10. The container according to claim 9, characterized in that The extension direction of the first groove and the extension direction of the second groove are both perpendicular to the extension direction of the peripheral plane.

11. The container according to claim 10, characterized in that The groove includes two first grooves, and the second groove is located between the two first grooves.

12. The container according to claim 10, characterized in that The groove includes two second grooves, and the first groove is located between the two second grooves.

13. The container according to claim 9, characterized in that The shortest distance between the first groove and the second groove is smaller than the width of the first groove.

14. The container according to claim 13, characterized in that The overlapping portion of the first groove and the convex strip has a protruding portion, and the protruding portion extends toward the second groove.

15. A box body, characterized in that: It comprises the container according to any one of claims 1 to 14, and the sealing film, which is adhered to the peripheral plane and the top surface.

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