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 edge part and a pressure relief convex block, the peripheral part comprises a peripheral plane, an inner edge, an outer edge and a pressure relief structure area, and the pressure relief structure area is located on the peripheral plane. The pressure relief bump is located in the pressure relief structure region, and the pressure relief bump contacts the inner edge. The pressure relief convex block comprises a pressure relief curved surface, and the pressure relief curved surface is connected with the peripheral plane. When the peripheral plane is in contact with the sealing film to seal the accommodating space, the pressure relief curved surface is also in contact with the sealing film, and a gap is formed between the sealing film and the joint of the pressure relief curved surface and the peripheral plane.

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 structure 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 containing space connected to the outside of the container. The peripheral portion is connected to the side wall and surrounds the containing 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 containing space, the outer edge is located on the side of the peripheral plane away from the containing 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 in contact with the sealing film protrude with a pressure relief protrusion, because the pressure relief protrusion has a pressure relief curved surface in contact with 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] 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; in other words, after the container is sealed, a pressure relief path will be formed around the pressure relief protrusion. Accordingly, when the pressure increases due to the generation of steam 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 a pressure relief function in the sealed state.

[0008] Furthermore, the present invention also provides a box body, which includes the container mentioned above and a sealing film, wherein the sealing film is adhered to the peripheral plane and the pressure relief curved surface of at least one pressure relief protrusion, thereby sealing, for example, food in the accommodating space of the container.

[0009] The detailed features and advantages of the present invention will be described in detail in the following embodiments, 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

[0010] Figure 1 is a three-dimensional diagram of a container according to an embodiment of the present case;

[0011] Figure 2 yes Figure 1 A partial enlarged view of the container;

[0012] Figure 3A It is Figure 2 When looking 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);

[0013] 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);

[0014] Figure 4 yes Figure 2A partial enlarged top view of the container in FIG.

[0015] Figure 5 In Figure 5 -(a-1) to Figure 5 - (a-4) is a partial 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 each of the above figures;

[0016] Figure 6 for Figure 1 A partial enlarged view of the container;

[0017] Figure 7 is a partially enlarged three-dimensional view of a container according to another embodiment of the present invention;

[0018] Figure 8 is a partially enlarged three-dimensional view of a container according to another embodiment of the present invention;

[0019] 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;

[0020] Fig.10 is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0021] Fig.11 is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0022] Fig.12 is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0023] Fig.13 is a partially enlarged stereoscopic view of a container according to another embodiment of the present invention;

[0024] 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;

[0025] 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);

[0026] 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);

[0027] Fig.17 is a partially enlarged top view of a container according to another embodiment of the present case;

[0028] Fig.18 is a partially enlarged top view of a container according to another embodiment of the present case;

[0029] Fig.19 is a partially enlarged top view of a container according to another embodiment of the present case;

[0030] Fig. 20 is a partially enlarged top view of a container according to another embodiment of the present case;

[0031] Fig.21 is a partially enlarged top view of a container according to another embodiment of the present case;

[0032] Fig. 22 is a partially enlarged top view of a container according to another embodiment of the present case;

[0033] Fig.23 is a partially enlarged top view of a container according to another embodiment of the present case;

[0034] Fig.24 It is a partially enlarged top view of a container according to another embodiment of the present case.

[0035]

Explanation of symbols

[0036] 1: Container

[0037] 101: Bottom

[0038] 102: Side wall

[0039] 103: Accommodation space

[0040] 104: Peripheral part

[0041] 1041: Peripheral plane

[0042] 1041a: Extension direction

[0043] 1042: Inner Edge

[0044] 1043: Outer Edge

[0045] 1044: Pressure relief structure area

[0046] 105: Pressure relief bump

[0047] 105a: Pressure relief channel

[0048] 1051: Pressure relief surface

[0049] 1052: Top

[0050] 1053: Additional Surface

[0051] 106,106': Auxiliary pressure relief bump

[0052] 106a: Auxiliary pressure relief channel

[0053] 1061: Auxiliary pressure relief surface

[0054] L: Straight line

[0055] L1, L3: Maximum width

[0056] L2: Distance

[0057] W1: Width

[0058] W2: Shortest distance

[0059] P: Symmetry plane DETAILED DESCRIPTION

[0060] Various embodiments will be presented below to explain the present invention in detail. However, the embodiments are only used as examples for explanation and are not intended to limit the scope of the present invention. In addition, the drawings in the embodiments sometimes omit some elements to clearly show the technical features of the present invention. The same reference numerals in the drawings will be used to represent the same or similar elements.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] Please continue reading Figure 1 Also see Figure 2 , Figure 2 yes Figure 1 A partial enlarged view of the heating food container 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.

[0065] 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 2 A 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 .

[0066] 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 .

[0067] 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.

[0068] 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.

[0069] 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)〕.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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 hemispherical body, 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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 .

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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 is 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 .

[0098] In some embodiments, among the auxiliary pressure relief protrusions 106 closest to the outer edge 1043 of the peripheral plane 1041, at least two adjacent auxiliary pressure relief protrusions 106 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.

[0099] Next, see Fig.24In some embodiments, the pressure relief structure area 1044 on the peripheral plane 1041 may have multiple aforementioned bump configurations. 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.

[0100] 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.

[0101] 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. The container 1 of the present invention 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 with the sealing film, when the container 1 is attached to the sealing film to seal the accommodating space 103, 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 curved surface and the flat surface are not easy to adhere, the sealing film will generate a pseudo-adhesion area on the pressure relief protrusion 105 and / or around the pressure relief protrusion 105, for example, a gap is formed between the pressure relief curved surface 1051 and the peripheral plane 1041 and the sealing film.

[0102] 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 formed between the pressure relief protrusion 105 and the sealing film, so that the container 1 still has a pressure relief function in a closed state with the sealing film.

[0103] By adjusting the number of pressure relief bumps 105 and / or adding auxiliary pressure relief bumps 106, the desired steam discharge position or discharge amount can be adjusted, which can better predict the steam discharge direction, help the design of the container 1, or help reduce the chance of injury when the user holds or accidentally touches this area.

[0104] 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 pressure relief container for heating food, characterized in that: Include: a bottom surface; A side wall is in contact with the bottom surface, and the side wall and the bottom surface form a containing space communicating with the outside of the container; a peripheral portion connected to the side wall and surrounding the accommodating space, the peripheral portion comprising 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 a side of the peripheral plane close to the accommodating space, the outer edge is located on a side of the peripheral plane away from the accommodating space, and the pressure relief structural area is located on the peripheral plane; and a pressure relief protrusion, located in the pressure relief structural area, the pressure relief protrusion contacts the inner edge, the pressure relief protrusion comprises a pressure relief curved surface, and the pressure relief curved surface is connected to the peripheral plane; When the peripheral plane contacts with a sealing film to seal the accommodating space, the pressure relief curved surface contacts with the sealing film so that a gap is formed between the pressure relief curved surface and the peripheral plane and the sealing film.

2. The pressure relief container for heating food according to claim 1, characterized in that: There is a shortest distance between the pressure relief protrusion and the outer edge, and the shortest distance is equal to or less than half of the width of the peripheral edge plane.

3. The pressure relief container for heating food according to claim 1, characterized in that: The pressure relief structure area further comprises an auxiliary pressure relief protrusion away from the bottom surface and protruding from the peripheral plane. The auxiliary pressure relief protrusion has an auxiliary pressure relief curved surface for contacting the sealing film, and the auxiliary pressure relief curved surface is connected to the peripheral plane, but the auxiliary pressure relief protrusion does not contact the inner edge of the peripheral portion.

4. The pressure relief container for heating food according to claim 3, characterized in that: At least two adjacent but not connected pressure relief protrusions are provided in the pressure relief structural area, and at least a part of the auxiliary pressure relief protrusion is located between the at least two adjacent pressure relief protrusions.

5. The pressure relief container for heating food according to claim 4, characterized in that: The at least two adjacent pressure relief protrusions are connected to each other, and a virtual straight line perpendicular to the extension direction of the peripheral plane and passing through the connection point of the at least two adjacent pressure relief protrusions also passes through the auxiliary pressure relief protrusion.

6. The pressure relief container for heating food according to claim 4 or claim 5, characterized in that: The auxiliary pressure relief protrusion is connected to at least two adjacent pressure relief protrusions.

7. The pressure relief container for heating food according to claim 6, characterized in that: The maximum width of the auxiliary pressure relief protrusion in the extension direction of the peripheral plane is not less than the distance between the two centers of the at least two adjacent pressure relief protrusions, but not greater than the maximum width of the at least two adjacent pressure relief protrusions in the extension direction of the peripheral plane.

8. The pressure relief container for heating food according to claim 1, characterized in that: The pressure relief structural area has at least two adjacent pressure relief protrusions, and a pressure relief channel is formed between the pressure relief curved surfaces of the two pressure relief protrusions.

9. The pressure relief container for heating food according to claim 8, characterized in that: The pressure relief structure area further comprises at least two auxiliary pressure relief protrusions which are away from the bottom surface and protrude from the peripheral plane. The at least two auxiliary pressure relief protrusions are adjacent to each other and have an auxiliary pressure relief curved surface for contacting the sealing film, and the auxiliary pressure relief curved surface is connected to the peripheral plane, but the at least two auxiliary pressure relief protrusions do not contact the inner edge of the peripheral portion; an auxiliary pressure relief channel is formed between the auxiliary pressure relief curved surfaces of the at least two auxiliary pressure relief protrusions; wherein the pressure relief channel is communicated with the auxiliary pressure relief channel.

10. The pressure relief container for heating food according to claim 9, characterized in that: The at least two auxiliary pressure relief protrusions are connected to each other, and the at least two adjacent pressure relief protrusions are connected to each other; and one of the at least two auxiliary pressure relief protrusions is connected to one of the at least two adjacent pressure relief protrusions, and the other of the at least two auxiliary pressure relief protrusions is connected to the other of the at least two adjacent pressure relief protrusions.

11. The pressure relief container for heating food according to claim 10, characterized in that: In the area enclosed by the at least two auxiliary pressure relief protrusions and the at least two adjacent pressure relief protrusions, there is another auxiliary pressure relief protrusion.

12. The pressure relief container for heating food according to claim 11, characterized in that: The other auxiliary pressure relief protrusion is connected to the at least two auxiliary pressure relief protrusions and the at least two adjacent pressure relief protrusions.

13. The pressure relief container for heating food according to claim 9, characterized in that: The at least two adjacent pressure relief protrusions are not connected to each other, and the at least two auxiliary pressure relief protrusions are not connected to each other; in the area surrounded by the at least two adjacent pressure relief protrusions and the at least two auxiliary pressure relief protrusions, there is another auxiliary pressure relief protrusion.

14. The pressure relief container for heating food according to claim 13, characterized in that: The other auxiliary pressure relief protrusion is connected to the at least two auxiliary pressure relief protrusions and the at least two adjacent pressure relief protrusions.

15. A box body, characterized in that: The invention comprises a pressure relief container for heating food as claimed in any one of claims 1 to 14, and a sealing film, wherein the sealing film is adhered to the peripheral plane and the pressure relief curved surface of at least one of the pressure relief protrusions.

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