Steel edge packaging box

Abstract

The utility model belongs to the technical field of packaging, and provides a steel edge packaging box which comprises a base, a box body, angle steel stand columns and a cover assembly. Wherein the box body is connected to the base and forms a containing cavity with an opening in the top; the angle steel stand columns are connected to the base and extend in the height direction of the box body, and the multiple angle steel stand columns are evenly and annularly arranged around the box body and abut against the base. The cover assembly comprises a supporting plate and a top plate which are arranged in a stacked mode, the supporting plate is connected to the box body and forms a through hole enabling the containing cavity to be communicated with the external environment, a plurality of pressure relief holes staggered with the through hole are formed in the top plate in an array mode, and an interval space enabling the through hole to be communicated with the pressure relief holes is further formed between the supporting plate and the top plate.

Description

Technical Field

[0001] The present application belongs to the field of packaging technology, and in particular relates to a steel-sided packaging box. Background Art

[0002] Lithium batteries, a vital component of modern energy, are widely used in electric vehicles, portable electronic devices, and other fields. However, under certain conditions (such as overcharging, short circuits, and high temperatures), lithium batteries can explode. This can not only damage the battery itself but also cause serious harm to surrounding equipment and personnel. Traditional lithium battery packaging boxes are often made of wood or plastic. Due to their fully enclosed structure, these boxes are prone to bursting under the high pressure generated by battery explosions, especially horizontal explosions. This allows the resulting fragments and shock waves to spread rapidly, increasing the risk of safety accidents. Therefore, it is necessary to solve the above technical problems. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a steel-sided packaging box to solve the technical problem of poor explosion-proof effect of packaging boxes in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is to provide a steel-sided packaging box, comprising:

[0005] base;

[0006] a box body connected to the base and forming a receiving cavity with an open top;

[0007] Angle steel columns are connected to the base and extend along the height direction of the box body. A plurality of angle steel columns are evenly arranged around the box body and all abut against the base.

[0008] The cover assembly includes a stacked support plate and a top plate, wherein the support plate is connected to the box body and forms a through hole that connects the accommodating cavity with the external environment, and the top plate is provided with a plurality of pressure relief holes that are staggered with the through holes. A spacing space is also formed between the support plate and the top plate to connect the through holes to the pressure relief holes.

[0009] Optionally, the cover assembly further comprises an explosion-proof membrane connected to the support plate and used to seal the through hole, wherein the explosion-proof membrane has a preset rupture pressure threshold.

[0010] Optionally, the explosion-proof membrane is arranged in the interval space.

[0011] Optionally, the cover assembly further comprises a support bar provided between the support plate and the top plate;

[0012] A plurality of support bars are respectively arranged along the transverse direction and the longitudinal direction of the support plate to form the separation space between the support plate and the top plate.

[0013] Optionally, the cover assembly further comprises a steel plate stacked with the top plate;

[0014] The steel plate is arranged on a side of the top plate away from the support plate and directly facing the through hole.

[0015] Optionally, the cover assembly further comprises a waterproof membrane connected to the top plate and used to close the pressure relief hole;

[0016] The waterproof membrane is arranged on a side of the top plate facing away from the support plate and has a rupture pressure threshold of a preset size.

[0017] Optionally, the pressure relief hole arrays are located on opposite sides of the through hole.

[0018] Optionally, the steel-sided packaging box further includes a cable tie;

[0019] A surface of one side of the box body facing the base is recessed to form a through slot for the cable tie to pass through, and the top plate and the box body are fastened to the box body by the cable tie passing through the through slot.

[0020] Optionally, the angle steel column abuts against the corner of the box body and both side edges are flat against the box body.

[0021] Optionally, the steel-sided packaging box further includes a buffer inner layer located in the accommodating cavity and abutting against the box body.

[0022] The beneficial effects of the steel-edged packaging box in the present application are: compared with the prior art, in the steel-edged packaging box in the present application, on the one hand, the angle steel columns connected to the base and arranged around the box body and abutting against the box body can effectively limit the box body from bursting in the horizontal direction; on the other hand, the support plate in the cover assembly for closing the accommodating cavity is provided with a through hole connected to the accommodating cavity, and the top plate stacked with the support plate is arrayed with pressure relief holes that are staggered with the through holes, and the pressure relief holes are connected to the through holes through the spacing space between the top plate and the support plate, which can effectively prevent external impurities from entering the accommodating cavity through the pressure relief holes and the through holes, and when a battery explosion occurs inside the box body, the high-pressure gas in the accommodating cavity can also be discharged to the outside of the box body through the through holes, the spacing space and the pressure relief holes in turn, which further reduces the risk of the box body bursting in the horizontal direction. Therefore, the steel-edged packaging box in the present application can achieve a good explosion-proof effect, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a schematic diagram of the exploded structure of the steel-sided packaging box in the embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the overall structure of the steel-sided packaging box in an embodiment of the present application.

[0026] Among them, the figure marks in the figure are: 101, base; 102, box body; 103, accommodating chamber; 104, angle steel column; 105, support plate; 106, top plate; 107, through hole; 108, pressure relief hole; 109, partition space; 110, explosion-proof membrane; 111, support bar; 112, steel plate; 113, waterproof membrane; 114, cable tie; 115, through groove; 116, buffer inner layer. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0031] Please also refer to Figure 1 and Figure 2 The steel-sided packaging box provided in the embodiment of the present application is now described. The steel-sided packaging box includes a base 101, a box body 102, an angle steel column 104, and a cover assembly. Among them:

[0032] The box body 102 is connected to the base 101 and forms a accommodating cavity 103 with an open top; the angle steel column 104 is connected to the base 101 and extends along the height direction of the box body 102, and a number of angle steel columns 104 are evenly arranged around the box body 102 and all abut against the base 101; the cover assembly includes a stacked support plate 105 and a top plate 106, the support plate 105 is connected to the box body 102 and forms a through hole 107 that connects the accommodating cavity 103 with the external environment, and the top plate 106 is arrayed with a number of pressure relief holes 108 that are staggered with the through hole 107, and a spacing space 109 is also formed between the support plate 105 and the top plate 106 to connect the through hole 107 to the pressure relief hole 108.

[0033] According to the above structure provided in this embodiment, in the steel-sided packaging box of this embodiment, on the one hand, the angle steel column 104 connected to the base 101 and arranged around the box body 102 and abutting against the box body 102 can effectively limit the box body 102 from bursting in the horizontal direction; on the other hand, the support plate 105 for closing the accommodating cavity 103 in the cover assembly is provided with a through hole 107 connected to the accommodating cavity 103, and the top plate 106 stacked with the support plate 105 is arrayed with pressure relief holes 108 that are staggered with the through holes 107, and the pressure relief holes 108 are arranged through the top plate 106 and the support plate 105. The spacing space 109 between the plates 105 is connected to the through hole 107, which can effectively prevent external impurities from entering the accommodating cavity 103 through the pressure relief hole 108 and the through hole 107. In addition, when a battery explosion occurs inside the box body 102, the high-pressure gas in the accommodating cavity 103 can also be discharged to the outside of the box body 102 through the through hole 107, the spacing space 109 and the pressure relief hole 108 in sequence, which further reduces the risk of the box body 102 bursting in the horizontal direction. Therefore, the steel-edged packaging box in this embodiment can achieve an excellent explosion-proof effect, which is far superior to the existing technology.

[0034] In another embodiment of this application, please refer to Figure 1 and Figure 2The lid assembly further includes an explosion-proof membrane 110 connected to the support plate 105 and used to seal the through-hole 107. The explosion-proof membrane 110 has a preset rupture pressure threshold. According to the structure provided in this embodiment, the explosion-proof membrane 110 used to seal the through-hole 107 can ensure a better sealing of the accommodating cavity 103, thereby ensuring effective packaging and protection of the packaged items during normal storage or transportation. Furthermore, when the high-pressure gas generated by the explosion of the packaged items (such as lithium batteries) in the accommodating cavity 103 is insufficient to break through the explosion-proof membrane 110, the explosion-proof membrane 110 can effectively prevent external air from entering the accommodating cavity 103 and provide a certain degree of flame retardancy, which further enhances the explosion-proof effect of the steel-sided packaging box in this embodiment.

[0035] In another embodiment of this application, please refer to Figure 1 and Figure 2 , the explosion-proof membrane 110 is arranged in the partition space 109. According to the above structure provided in this embodiment, the explosion-proof membrane 110 arranged in the partition space 109 will be retained between the support plate 105 and the top plate 106 after being broken by the high-pressure gas in the accommodating chamber 103. This can ensure that the pressure relief channel is unobstructed on the one hand, and on the other hand, the broken explosion-proof membrane 110 will not enter the accommodating chamber 103 and become potential combustibles, which is conducive to further improving the explosion-proof effect of the steel-sided packaging box in this embodiment.

[0036] In another embodiment of this application, please refer to Figure 1 and Figure 2 The lid assembly further includes support bars 111 disposed between the support plate 105 and the top plate 106; a plurality of support bars 111 are provided along the transverse and longitudinal directions of the support plate 105 to form a separation space 109 between the support plate 105 and the top plate 106. According to the structure provided in this embodiment, the support bars 111 disposed between the support plate 105 and the top plate 106 not only improve the structural strength of the support plate 105 and the top plate 106, but also provide flow guidance for the high-pressure gas between the through-hole 107 and the pressure relief hole 108, thereby enabling the high-pressure gas to be discharged from the accommodating cavity 103 more quickly, which is beneficial for further improving the explosion-proof effect of the steel-sided packaging box in this embodiment.

[0037] In another embodiment of this application, please refer to Figure 1 and Figure 2, the cover assembly also includes a steel plate 112 stacked with the top plate 106; the steel plate 112 is arranged on the side of the top plate 106 away from the support plate 105 and opposite the through hole 107. According to the above structure provided in this embodiment, since the support plate 105 forms a notch at the through hole 107, the steel plate 112 connected to the top plate 106 and opposite the through hole 107 can improve the structural strength of the portion of the top plate 106 facing the through hole 107, which can effectively prevent external debris from breaking through the top plate 106 and entering the accommodating cavity 103 from the through hole 107, thereby improving the reliability of the packaging box during normal use. It can be understood that in the actual production process, the thickness of the steel plate 112 can be flexibly customized according to the design strength requirements, and no further details will be given here.

[0038] In another embodiment of this application, please refer to Figure 1 and Figure 2 The cover assembly also includes a waterproof membrane 113 connected to the top plate 106 and used to seal the pressure relief hole 108; the waterproof membrane 113 is arranged on the side of the top plate 106 away from the support plate 105 and has a preset rupture pressure threshold. According to the above structure provided in this embodiment, the waterproof membrane 113 connected to the top plate 106 and used to seal the pressure relief hole 108 can, on the one hand, effectively prevent external impurities from entering the accommodating cavity 103, and on the other hand, it can also form a better sealing performance for the accommodating cavity 103, which is conducive to further improving the protective effect of the steel-edged packaging box in this embodiment. Here, the pressure relief holes 108 adopt an array structure. On the one hand, it is used to effectively support the waterproof membrane 113, ensure the strength of the waterproof membrane 113 during normal use, and avoid early damage. On the other hand, it ensures that it has a sufficient actual diameter, thereby ensuring the pressure relief effect.

[0039] In another embodiment of this application, please refer to Figure 1 and Figure 2 The pressure relief holes 108 are arrayed on opposite sides of the through hole 107. According to the structure provided in this embodiment, the pressure relief holes 108 disposed on both sides of the through hole 107 facilitate faster discharge of high-pressure gas in the accommodating chamber 103, thereby further enhancing the explosion-proof effect of the steel-sided packaging box in this embodiment.

[0040] In another embodiment of this application, please refer to Figure 1 and Figure 2The steel-sided packaging box also includes a cable tie 114. A recessed groove 115 is formed on the side of the box body 102 facing the base 101, through which the cable tie 114 passes. The top panel 106 and the box body 102 are secured to the box body 102 via the cable tie 114 passing through the groove 115. According to the structure provided in this embodiment, securing the top panel 106 to the box body 102 via the cable tie 114 provides greater stability in the connection between the top panel 106, the box body 102, and the base 101, and facilitates removal of the lid assembly and the box body 102.

[0041] In another embodiment of this application, please refer to Figure 1 and Figure 2 The angle steel columns 104 abut against the corners of the box body 102, and both sides are flat against the box body 102. According to the above structure provided in this embodiment, the angle of the angle steel columns 104 is formed to adapt to the corners of the box body 102, which is conducive to more sufficient abutment against the box body 102. This can further improve the supporting strength of the steel-sided packaging box in this embodiment, making the packaging box more reliable.

[0042] In another embodiment of this application, please refer to Figure 1 and Figure 2 The steel-sided packaging box further includes a buffer inner layer 116 located within the accommodating cavity 103 and abutting the box body 102. According to the structure provided in this embodiment, the buffer inner layer 116 disposed within the accommodating cavity 103 can effectively prevent the box body 102 from bursting horizontally by absorbing a portion of the deflagration energy, thereby further enhancing the explosion-proof effectiveness of the steel-sided packaging box in this embodiment. It is understood that the buffer inner layer 116 described in this embodiment can be a commonly used buffer structure in the art, such as fireproof sponge, and will not be further described here.

[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A steel-sided packaging box, characterized in that: include: Base (101); A box body (102) is connected to the base (101) and forms a receiving cavity (103) with an open top; Angle steel columns (104) are connected to the base (101) and extend along the height direction of the box (102); a plurality of angle steel columns (104) are evenly arranged around the box (102) and all abut against the base (101); A cover assembly, comprising a stacked support plate (105) and a top plate (106), wherein the support plate (105) is connected to the box body (102) and forms a through hole (107) for communicating the accommodating cavity (103) with the external environment, a plurality of pressure relief holes (108) offset from the through hole (107) are arranged in an array on the top plate (106), and a spacing space (109) is formed between the support plate (105) and the top plate (106) for communicating the through hole (107) with the pressure relief hole (108); The cover assembly further comprises an explosion-proof membrane (110) connected to the support plate (105) and used to close the through hole (107); the explosion-proof membrane (110) has a preset rupture pressure threshold.

2. The steel-sided packaging box according to claim 1, characterized in that: The explosion-proof membrane (110) is arranged in the interval space (109).

3. The steel-sided packaging box according to claim 1, characterized in that: The cover assembly further comprises a support bar (111) cushioned between the support plate (105) and the top plate (106); A plurality of support bars (111) are respectively provided along the transverse direction and the longitudinal direction of the support plate (105) so as to form the separation space (109) between the support plate (105) and the top plate (106).

4. The steel-sided packaging box according to claim 1, characterized in that: The cover assembly further includes a steel plate (112) stacked with the top plate (106); The steel plate (112) is arranged on a side of the top plate (106) away from the support plate (105) and directly opposite to the through hole (107).

5. The steel-sided packaging box according to claim 1, characterized in that: The cover assembly further includes a waterproof membrane (113) connected to the top plate (106) and used to close the pressure relief hole (108); The waterproof membrane (113) is arranged on a side of the top plate (106) facing away from the support plate (105) and has a rupture pressure threshold of a preset size.

6. The steel-sided packaging box according to claim 1, characterized in that: The pressure relief holes (108) are arrayed on opposite sides of the through hole (107).

7. The steel-sided packaging box according to claim 1, characterized in that: The steel-sided packaging box further includes a cable tie (114); A surface of one side of the box body (102) facing the base (101) is recessed to form a through groove (115) for the cable tie (114) to pass through, and the top plate (106) and the box body (102) are fastened to the box body (102) by the cable tie (114) passing through the through groove (115).

8. The steel-sided packaging box according to claim 1, characterized in that: The angle steel column (104) abuts against the corner of the box (102) and has two side edges flat against the box (102).

9. The steel-sided packaging box according to any one of claims 1 to 8, characterized in that: The steel-sided packaging box further includes a buffer inner layer (116) located in the accommodating cavity (103) and abutting against the box body (102).

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