Shell assembly convenient to connect and battery

Abstract

The utility model discloses a shell assembly convenient to connect and a battery, the shell assembly comprises a main shell and a packaging plate, the main shell is internally provided with a mounting cavity, the side part of the mounting cavity is provided with a packaging opening, and the packaging opening is provided with a first connecting surface and a first connecting edge; the packaging plate is provided with a second connecting face and a second connecting edge, and the second connecting edge is attached to the first connecting edge so that the first connecting face can coincide with the second connecting face. The battery comprises a battery cell and the shell assembly, the battery cell is arranged in the mounting cavity of the main shell, and the packaging plate covers the mounting cavity. According to the packaging plate provided by the utility model, the second connecting edge on the packaging plate is attached to the first connecting edge on the main shell, so that the first connecting surface and the second connecting surface can be overlapped, and the welding positions formed by the second connecting edge and the first connecting edge can be positioned on the same plane; when the packaging plate and the main shell are welded, the main shell does not need to be rotated, welding can be completed on one side of the main shell, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and in particular to a shell component and a battery that are easy to connect. Background Art

[0002] Traditional aluminum-plastic film soft-pack batteries, with their excellent flexibility, shape adaptability, and relatively high safety, have occupied a significant position in the market for some time. However, as market demand shifts toward higher energy density and longer battery life, the additional space occupied by the aluminum-plastic film package limits the stacking efficiency of internal battery materials and also affects the overall energy storage capacity of the battery, making it difficult to meet the growing capacity demand.

[0003] Against this backdrop, metal-shelled cells emerged as the times require. Their exceptional rigidity and corrosion resistance provide a solid protective barrier for the cell. Their compact design significantly increases the available space within the cell while maintaining the overall dimensions. This means more active material can be accommodated within the same volume, effectively increasing battery capacity.

[0004] At present, the common square battery shells on the market are mainly composed of two parts: a solid shell and a well-sealed cover. However, in the manufacturing process of the battery shell, especially the welding link between the shell and the cover, the traditional welding process requires the operator to perform welding operations on the four sides of the shell one by one. Specifically, the welding head needs to be welded on one side of the shell first. After the welding of this side is completed, the position of the welding head is adjusted or the shell is rotated to weld the next adjacent side. This process is repeated until all four sides are welded. The whole process is full of repetitive manual adjustments and waiting time, which greatly limits production efficiency. Utility Model Content

[0005] In order to overcome at least one of the defects described in the above-mentioned prior art, one of the purposes of the present invention is to provide a shell assembly that is easy to connect, wherein the welding position of the packaging plate and the main shell are located on the same plane, avoiding frequent adjustment of the position of the welding head or rotation of the main shell during welding, thereby improving welding efficiency.

[0006] The second purpose of the present utility model is to provide a battery, in which the welding positions of the packaging plate of the shell assembly and the main shell are located on the same plane, avoiding frequent adjustment of the position of the welding head or rotation of the main shell during welding, thereby improving welding efficiency.

[0007] One of the technical solutions adopted by the present invention to solve the problem is:

[0008] A housing assembly that is easy to connect, comprising:

[0009] A main housing, wherein a mounting cavity is provided in the main housing, a side of the mounting cavity is provided with a packaging opening, and the packaging opening has a first connecting surface and a first connecting edge;

[0010] The packaging board has a second connection surface and a second connection edge, wherein the second connection edge is attached to the first connection edge so that the first connection surface and the second connection surface overlap.

[0011] As a preferred technical solution of the present invention, the first connecting edge includes two first connecting segments and two second connecting segments, the two first connecting segments are respectively provided on both sides of the main shell, and the two second connecting segments are respectively provided at both ends of the main shell;

[0012] The second connecting edge includes two third connecting segments and two fourth connecting segments, the two third connecting segments are respectively arranged on both sides of the packaging board, and the two fourth connecting segments are respectively arranged at both ends of the packaging board; the third connecting segment is bonded to the first connecting segment, and the fourth connecting segment is bonded to the second connecting segment.

[0013] As a preferred technical solution of the present invention, the width of the packaging opening gradually increases along the end away from the installation cavity and forms a positioning portion.

[0014] As a preferred technical solution of the present invention, the main shell includes a first main board, two side panels and two end panels, the two side panels are arranged on both sides of the first main board, and the two end panels are arranged at both ends of the first main board; the first connecting section is formed at the end of the side panel, and the second connecting section is formed at the end of the end panel.

[0015] As a preferred technical solution of the present utility model, the side panel includes a connecting plate section and a positioning plate section, the two sides of the connecting plate section are respectively connected to one side of the first main board and one side of the positioning plate section, and the first connecting section is formed on the other side of the positioning plate section; the connecting plate section is perpendicular to the first connecting surface, and the positioning plate section is set at an angle a with the first connecting surface, and the angle a is less than 90°; the positioning plate section is formed as the positioning portion.

[0016] As a preferred technical solution of the present invention, the packaging board includes a main board segment and two side panel segments, the two side panel segments are arranged on both sides of the main board segment, and the third connecting segment is formed on the other side of the side panel segment away from the main board segment; the main board segment is parallel to the second connecting surface, and the side panel segment and the second connecting surface are set at the angle a; the side panel segment is positioned and fitted with the positioning plate segment.

[0017] As a preferred technical solution of the present invention, the inner side of the positioning plate segment has a first guide slope, and the outer side of the side plate segment has a second guide slope. The second guide slope and the first guide slope are positioned and fitted with each other so that the third connecting segment and the first connecting segment correspond to each other.

[0018] As a preferred technical solution of the present invention, the packaging board also includes two connecting plates, which are respectively connected to the upper and lower ends of the main board segment, and the connecting plates are perpendicular to the second connecting surface; the fourth connecting segment is formed on the side of the connecting plate away from the main board segment; the connecting plate is fitted with the end plate so that the fourth connecting segment is fitted with the second connecting segment.

[0019] As a preferred technical solution of the present invention, the two end plates are respectively a first end plate and a second end plate, the first end plate is connected to the upper end of the first main board, and the second end plate is connected to the lower end of the first main board; the first end plate is provided with a pole assembly, and the pole assembly is used to be electrically connected to the battery cell.

[0020] The second technical solution adopted by the present invention to solve the problem is:

[0021] A battery comprises a cell and the aforementioned easily connectable shell assembly, wherein the cell is arranged in an installation cavity of the main shell, and the packaging plate covers the installation cavity.

[0022] In summary, the conveniently connected housing assembly and battery provided by the present invention have the following technical effects:

[0023] 1) The main shell of the present invention is provided with an installation cavity, and the installation cavity has a packaging port facing the side of the main shell. The battery cell can be first connected to the pole assembly on the first end plate of the main shell and then installed into the installation cavity through the packaging port. The opening of the packaging port is large, so that there is sufficient operating space for welding the battery cell and the pole, and the battery cell is easier to install in the installation cavity, which improves the convenience of assembly and connection.

[0024] 2) The packaging plate of the present invention is fitted with the first connecting edge on the main shell through the second connecting edge thereon, so that the first connecting surface and the second connecting surface can overlap, so that the welding positions formed by the second connecting edge and the first connecting edge can be located on the same plane. When welding the packaging plate to the main shell, there is no need to rotate the main shell, and the welding can be completed on one side of the main shell, thereby improving welding efficiency.

[0025] 3) By optimizing the structure of the housing assembly, the battery of this utility model simplifies its connection method and assembly process, reducing unnecessary steps and complexity. Furthermore, due to the use of a metal housing, the mounting cavity can accommodate more active material, thereby effectively increasing the battery capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front view of the main housing of an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle;

[0028] Figure 3 for Figure 1 Schematic diagram of the cross section at the middle BB;

[0029] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0030] Figure 5 This is a front view of a packaging plate according to an embodiment of the present utility model;

[0031] Figure 6 for Figure 5 Schematic cross-section at CC;

[0032] Figure 7 for Figure 5 Schematic diagram of the cross section at DD in the middle;

[0033] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0034] Figure 9 This is a front view of the battery cell and the main housing when assembled according to an embodiment of the utility model;

[0035] Figure 10 This is a front view of the packaging plate covering the main housing according to an embodiment of the present utility model;

[0036] Figure 11 for Figure 10 Schematic cross-section at EE;

[0037] Figure 12 for Figure 11 A partial enlarged view of point C in the middle;

[0038] Figure 13 for Figure 10 Schematic cross-section diagram at FF;

[0039] Figure 14 for Figure 13 A partial enlarged view of point D in the middle.

[0040] The meanings of the reference numerals are as follows:

[0041] 1. Main shell; 10. First connecting surface; 11. First main board; 12. First side plate; 121. Connecting plate section; 122. Positioning plate section; 123. First guide slope; 13. Second side plate; 14. First end plate; 141. Liquid filling port; 15. Second end plate; 16. First connecting section; 17. Second connecting section; 18. Mounting cavity; 19. Pole assembly; 191. Pole; 192. Seal; 2. Encapsulation plate; 20. Second connecting surface; 211. Main board section; 212. Side plate section; 213. Second guide slope; 214. Connecting plate; 22. Third connecting section; 23. Fourth connecting section; 3. Battery cell; 31. Pole piece; 4. Battery. DETAILED DESCRIPTION

[0042] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0045] Example 1

[0046] The utility model discloses a housing assembly that is easy to connect, which includes a main housing 1 and a packaging plate 2; Figure 1 、 Figure 2 and Figure 3 The main housing 1 is provided with an installation cavity 18, a side of the installation cavity 18 is provided with a sealing opening, and the sealing opening has a first connecting surface 10 and a first connecting edge. Figure 5 、 Figure 6 and Figure 7 The package board 2 has a second connection surface 20 and a second connection edge, wherein Figure 10The second connecting edge is aligned with the first connecting edge so that the first connecting surface 10 and the second connecting surface 20 coincide with each other.

[0047] Based on this structure, when using the easy-to-connect housing assembly of the present invention, the battery cell 3 is first installed into the installation cavity 18 through the sealing opening on the side of the main housing 1. The packaging board 2 is then installed at the sealing opening. At the same time, the second connecting edge of the packaging board 2 is aligned with the first connecting edge of the sealing opening so that the first connecting surface 10 and the second connecting surface 20 completely overlap. The welding position formed by the second connecting edge and the first connecting edge is then welded along the second connecting edge or the extension direction of the first connecting edge, so that the first connecting edge and the second connecting edge are melted and fused together, thereby sealing the main housing 1 with the packaging board 2.

[0048] The first connection surface 10 is the end surface of the main housing 1 on the side where the sealing opening is provided. The first connection edge is provided around the periphery of the sealing opening and is formed on the first connection surface 10. The second connection surface 20 is the end surface of the sealing board 2 on the side facing away from the main housing 1. The second connection edge is provided around the periphery of the sealing board 2 and is formed on the second connection surface 20.

[0049] Since the second connecting edge is attached to the first connecting edge and the first connecting surface 10 and the second connecting surface 20 are completely overlapped, the welding position formed by the second connecting edge and the first connecting edge is located on the same plane. The welding operation can be concentrated on this plane without frequently adjusting the position of the welding head on different sides, and without rotating or moving the main shell 1.

[0050] Thus, by forming the welding positions on the same plane, the present application avoids the tedious steps of rotating or moving parts multiple times, thereby significantly improving welding efficiency. At the same time, the welding head can weld continuously, so that the first connecting edge and the second connecting edge form a continuous weld, which helps to form a reliable sealing structure.

[0051] As a preferred technical solution of the present invention, the first connecting edge includes two first connecting segments 16 and two second connecting segments 17, and the two first connecting segments 16 are respectively provided on both sides of the main shell 1, and the two second connecting segments 17 are respectively provided at both ends of the main shell 1;

[0052] Correspondingly, the second connecting edge includes two third connecting segments 22 and two fourth connecting segments 23, and the two third connecting segments 22 are respectively provided on both sides of the packaging board 2, and the two fourth connecting segments 23 are respectively provided on both ends of the packaging board 2. The third connecting segment 22 is in contact with the first connecting segment 16, and the fourth connecting segment 23 is in contact with the second connecting segment 17.

[0053] Based on this structure, during assembly, the packaging plate 2 is brought close to and embedded in the packaging opening, with the third connecting segments 22 on both sides of the packaging plate 2 correspondingly aligned with the first connecting segments 16 on both sides of the main housing 1, and the fourth connecting segments 23 on both ends of the packaging plate 2 correspondingly aligned with the second connecting segments 17 on both ends of the main housing 1. This ensures that the first connecting surface 10 and the second connecting surface 20 coincide, and the welds formed by the third connecting segment 22 and the first connecting segment 16, and the fourth connecting segment 23 and the second connecting segment 17, are located on the same plane. During welding, continuous welding can be performed along the perimeter of the packaging plate 2 on this plane to form a continuous weld.

[0054] Therefore, the continuous weld formed by continuous welding helps to reduce welding defects such as pores and cracks, while improving the strength and sealing of the weld, thereby optimizing the overall welding quality.

[0055] As a preferred technical solution of the present invention, refer to Figure 3 and Figure 4 The width of the packaging opening gradually increases along the end away from the installation cavity 18 and forms a positioning portion.

[0056] That is, the width of the package opening gradually decreases along the installation direction of the package board 2, which can guide the installation of the package board 2 and limit the installation depth of the package board 2. It should be noted that the width of the package opening can be the distance between the two sides of the package opening and / or the distance between the two ends of the package opening. Therefore, when the package board 2 is installed, the first connecting edge and the second connecting edge naturally align, and the first connecting surface 10 and the second connecting surface 20 are located on the same plane.

[0057] This can reduce the difficulty of alignment during assembly and improve assembly efficiency. In addition, when the packaging plate 2 is fully inserted and positioned, the edge of the packaging plate 2 will fit tightly with the positioning portion of the packaging port, forming a certain tightening effect, which helps to enhance the connection strength between the packaging plate 2 and the main shell 1 and improve the stability of the overall structure.

[0058] As a preferred technical solution of the present invention, refer to Figure 3 and Figure 4 The main housing 1 includes a first main plate 11, two side plates, and two end plates. The two side plates are arranged on both sides of the first main plate 11, and the two end plates are arranged at both ends of the first main plate 11. Among them, the first connecting section 16 is formed at the end of the side plate, and the second connecting section 17 is formed at the end of the end plate.

[0059] The main housing 1 is integrally formed from a first main plate 11, two side plates, and two end plates. During battery 4 production, the cell 3 is placed on one side of the main housing 1, and the electrode 31 of the cell 3 is electrically connected to the terminal assembly 19 on one end plate of the main housing 1. The cell 3 is then installed directly into the mounting cavity 18 through the sealing opening of the main housing 1. The sealing opening is then covered with the sealing plate 2, and welding is performed continuously at the welding positions on the same plane.

[0060] As a result, there are no additional seams or connection points between the various components of the main housing 1, enhancing the overall structural strength of the main housing 1, allowing it to withstand greater external pressure and impact, and protecting the safety of the internal battery cells 3. The welding points between the packaging plate 2 and the main housing 1 are located on the same plane, so that the two can form a continuous weld after welding, improving the sealing of the entire housing and helping to prevent gas, liquid, or impurities from penetrating into the installation cavity 18.

[0061] In addition, the components of the main housing 1 are integrally formed, which reduces the number of assembly steps and parts in the production process, thereby improving production efficiency.

[0062] As a preferred technical solution of the present invention, refer to Figure 3 and Figure 4 The side panel includes a connecting plate segment 121 and a positioning plate segment 122. Specifically, the two sides of the connecting plate segment 121 are connected to one side of the first main plate 11 and one side of the positioning plate segment 122, respectively. The first connecting segment 16 is formed on the other side of the positioning plate segment 122. The connecting plate segment 121 is perpendicular to the first connecting surface 10, and the positioning plate segment 122 is arranged at an angle a with the first connecting surface 10, where a is less than 90°. It should be noted that the positioning plate segment 122 forms the aforementioned positioning portion.

[0063] The two side panels are a first side panel 12 and a second side panel 13, respectively. The sealing opening is located between the ends of the first side panel 12 and the second side panel 13 away from the first main panel 11. Because the positioning plate segment 122 is arranged at an angle a less than 90° with the first connecting surface 10, a gradually varying width region is formed between the two positioning plate segments 122, thereby achieving a width variation of the sealing opening and forming a positioning portion.

[0064] Because the width of the packaging opening gradually increases toward the end away from the mounting cavity 18, the positioning plate segment 122 is tilted outward. Furthermore, the degree of width variation of the packaging opening can be adjusted by adjusting the angle a. For example, the smaller the angle a is, the greater the width variation of the packaging opening; and the larger the angle a is, the smaller the width variation of the packaging opening.

[0065] Therefore, when the packaging board 2 is assembled with the main shell 1, it can be quickly positioned through the positioning part. The packaging board 2 is embedded into the packaging opening to a certain depth along the positioning part, so that the first connecting edge and the second connecting edge can naturally fit together, so that the first connecting surface 10 and the second connecting surface 20 coincide with each other, so that the welding positions of the first connecting edge and the second connecting edge can be located in the same plane.

[0066] In addition, the width variation range of the packaging opening can be flexibly adjusted by adjusting the size of the angle a to accommodate battery cells 3 of different sizes and shapes, thereby improving the versatility and flexibility of the housing assembly.

[0067] As a preferred technical solution of the present invention, refer to Figure 7 and Figure 8 The packaging board 2 includes a main board section 211 and two side board sections 212. Specifically, the two side board sections 212 are provided on either side of the main board section 211, and the third connecting section 22 is formed on the other side of the side board section 212 away from the main board section 211. The main board section 211 is parallel to the second connecting surface 20, and the side board sections 212 are provided at an angle a to the second connecting surface 20. The side board sections 212 are used to position and mate with the positioning board section 122 when the packaging board 2 is sealed to the packaging opening.

[0068] Based on this structure, when assembling the housing assembly, the packaging plate 2 can be first placed on the side of the packaging opening of the main housing 1, and the position of the packaging plate 2 can be adjusted so that the two side plate segments 212 correspond to the two positioning plate segments 122 of the main housing 1. Because the side plate segments 212 are arranged at an angle a with the second connecting surface 20, and the positioning plate segments 122 are arranged at an angle a with the first connecting surface 10, when the packaging plate 2 is pressed into the packaging opening, the side plate segments 212 and the positioning plate segments 122 are positioned and aligned, and when the first connecting edge and the second connecting edge are aligned, the first connecting surface 10 and the second connecting surface 20 can be arranged to overlap with each other.

[0069] Thus, the side panel segments 212 and the positioning plate segments 122 are positioned and fitted together, making it easier to position and fit the first connecting edge and the second connecting edge together during the packaging process, thereby aligning the first connecting surface 10 with the second connecting surface 20. The positioning of the side panel segments 212 and the positioning plate segments 122, and the first connecting edge and the second connecting edge, together ensure that the packaging plate 2 is accurately installed on the main housing 1 at a predetermined position and angle, avoiding deviation or misalignment.

[0070] As a preferred technical solution of the present invention, refer to Figure 4 The inner side of the positioning plate segment 122 has a first guiding slope 123, see Figure 8The outer side of the side plate section 212 has a second guide slope 213, and the second guide slope 213 is positioned and matched with the first guide slope 123, so that the third connecting section 22 is matched with the first connecting section 16.

[0071] The first connecting section 16 is located at the intersection of the first guide slope 123 and the first connecting surface 10, and the third connecting section 22 is located at the intersection of the second guide slope 213 and the second connecting surface 20. Figure 14 At this time, the third connecting section 22 is naturally matched with the first connecting section 16.

[0072] Therefore, the positioning of the first guide slope 123 and the second guide slope 213 provides accurate positioning and guiding functions for the assembly process of the packaging plate 2 and the main shell 1.

[0073] As a preferred technical scheme of the utility model, referring to Figure 6 The packaging plate 2 further comprises two connecting plates 214, and the two connecting plates 214 are connected to the upper end and the lower end of the main plate section 211 respectively, and the connecting plate 214 is perpendicular to the second connecting surface 20. Figure 11 And Figure 12 The fourth connecting section 23 is formed on the side of the connecting plate 214 away from the main plate section 211, and the connecting plate 214 is matched with the end plate, so that the fourth connecting section 23 is matched with the second connecting section 17.

[0074] Since the end plate is perpendicular to the first connecting surface 10, when the connecting plate 214 is matched with the end plate, and the fourth connecting section 23 is matched with the second connecting section 17, the first connecting surface 10 is overlapped with the second connecting surface 20.

[0075] As a preferred technical scheme of the utility model, referring to Figure 11 And Figure 13 The two end plates are a first end plate 14 and a second end plate 15, specifically, the first end plate 14 is connected to the upper end of the first main plate 11, and the second end plate 15 is connected to the lower end of the first main plate 11.

[0076] Based on this structure, the pole assembly 19 includes a pole 191 and a seal 192. The first end plate 14 is provided with a mounting hole, the pole 191 is inserted into the mounting hole, and the seal 192 is provided between the pole 191 and the mounting hole wall. The seal 192 is a rubber ring. Figure 9 When the main shell 1 is assembled with the battery cell 3, the pole 191 is electrically connected to the pole piece 31 of the battery cell 3, and then the battery cell 3 is installed into the installation cavity 18 through the packaging port, and the packaging plate 2 packages the installation cavity 18.

[0077] It should be noted that the first end plate 14 and the second end plate 15 are integrally formed on the first main board 11, which eliminates the assembly process of the upper cover plate and the lower base plate during assembly, and the battery cell 3 enters the installation cavity 18 through the larger side packaging opening of the main shell 1, reducing the difficulty of assembly.

[0078] In addition, a liquid injection port 141 is provided on the first end plate 14 , and the liquid injection port 141 can inject electrolyte into the assembled housing assembly.

[0079] Example 2

[0080] Different from the first embodiment, this embodiment discloses a battery 4, which includes a battery cell 3 and a shell assembly that is easy to connect as described in the first embodiment, wherein the battery cell 3 is arranged in the installation cavity 18 of the main shell 1, and the packaging plate 2 covers the installation cavity 18.

[0081] Among them, the installation cavity 18 of the main shell 1 has a side packaging port, which is arranged opposite to the first main board 11 of the main shell 1. The opening area of ​​the side packaging port is larger, so that the battery cell 3 has a larger operating space when electrically connected to the pole 191 in the installation cavity 18 through the pole piece 31 outside the packaging port, reducing the connection difficulty. At the same time, the battery cell 3 is also easier to install in the installation cavity 18.

[0082] After the packaging board 2 is assembled with the main housing 1, the first connection surface 10 on the packaging board 2 can be aligned with the second connection surface 20 on the main housing 1, thereby making the first connection edge and the second connection edge abut and the welded position formed by the two are located on the same plane. The specific formation structure and process of this part have been described in detail in Example 1 of this application and will not be elaborated on here.

[0083] In summary, the battery 4 of the present application optimizes the structure of the housing assembly to simplify its connection method and assembly process, reduce unnecessary steps and reduce complexity. In addition, due to the use of a metal housing, the mounting cavity 18 can accommodate more active material, thereby effectively increasing the capacity of the battery 4.

[0084] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A housing assembly that is easy to connect, characterized in that: include, A main housing, wherein a mounting cavity is provided in the main housing, a side of the mounting cavity is provided with a packaging opening, and the packaging opening has a first connecting surface and a first connecting edge; The packaging board has a second connection surface and a second connection edge, wherein the second connection edge is attached to the first connection edge so that the first connection surface and the second connection surface overlap.

2. The housing assembly for easy connection according to claim 1, characterized in that: The first connecting edge includes two first connecting segments and two second connecting segments, the two first connecting segments are respectively arranged on both sides of the main shell, and the two second connecting segments are respectively arranged on both ends of the main shell; The second connecting edge includes two third connecting segments and two fourth connecting segments, the two third connecting segments are respectively arranged on both sides of the packaging board, and the two fourth connecting segments are respectively arranged at both ends of the packaging board; the third connecting segment is bonded to the first connecting segment, and the fourth connecting segment is bonded to the second connecting segment.

3. The housing assembly for easy connection according to claim 2, characterized in that: The main shell includes a first main board, two side panels and two end panels, the two side panels are arranged on both sides of the first main board, and the two end panels are arranged at both ends of the first main board; the first connecting section is formed at the end of the side panel, and the second connecting section is formed at the end of the end panel.

4. The housing assembly for easy connection according to claim 3, characterized in that: The width of the packaging opening gradually increases along an end away from the installation cavity and forms a positioning portion.

5. The housing assembly for easy connection according to claim 4, characterized in that: The side panel includes a connecting plate section and a positioning plate section, the two sides of the connecting plate section are respectively connected to one side of the first main board and one side of the positioning plate section, and the first connecting section is formed on the other side of the positioning plate section; the connecting plate section is perpendicular to the first connecting surface, and the positioning plate section is set at an angle a with the first connecting surface, and the angle a is less than 90°; the positioning plate section is formed as the positioning portion.

6. The housing assembly for easy connection according to claim 5, characterized in that: The packaging board includes a main board segment and two side panel segments, the two side panel segments are respectively arranged on both sides of the main board segment, and the third connecting segment is formed on the other side of the side panel segment away from the main board segment; the main board segment is parallel to the second connecting surface, and the side panel segment and the second connecting surface are set at the angle a; the side panel segment is positioned and fitted with the positioning plate segment.

7. The housing assembly for easy connection according to claim 6, characterized in that: The inner side of the positioning plate segment has a first guiding slope, the outer side of the side plate segment has a second guiding slope, and the second guiding slope and the first guiding slope are positioned and fitted with each other so that the third connecting segment is correspondingly fitted with the first connecting segment.

8. The housing assembly for easy connection according to claim 6, characterized in that: The packaging board also includes two connecting plates, which are respectively connected to the upper end and lower end of the main board segment, and the connecting plates are perpendicular to the second connecting surface; the fourth connecting segment is formed on the side of the connecting plate away from the main board segment; the connecting plate is fitted with the end plate so that the fourth connecting segment is fitted with the second connecting segment.

9. The easily connectable housing assembly according to any one of claims 3 to 8, characterized in that: The two end plates are respectively a first end plate and a second end plate, the first end plate is connected to the upper end of the first main board, and the second end plate is connected to the lower end of the first main board; a pole assembly is provided on the first end plate, and the pole assembly is used to be electrically connected to the battery cell.

10. A battery, characterized in that: It comprises a battery cell and a shell assembly that is easy to connect as described in any one of claims 1 to 9, wherein the battery cell is arranged in the installation cavity of the main shell, and the packaging plate covers the installation cavity.

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