CN217158357U - Packaging case, battery and terminal device - Google Patents

Abstract

An encapsulation case includes a first case and a second case. The first casing includes a bottom plate and a first side plate, and the first side plate is arranged around the periphery of the bottom plate; the second casing includes a top plate and a second side plate, and the second side plate is arranged around the periphery of the top plate and extends toward the first casing ; The inner wall of the second side plate is in contact with the outer wall of the first side plate. The encapsulation structure composed of the first shell and the second shell can avoid the generation of flanges, and when the encapsulation shell is applied to the terminal device, the space occupied by the encapsulation shell in the terminal device is reduced; on the other hand, the second shell The inner wall of the side plate is in contact and connected with the outer wall of the first side plate, which increases the connection area between the first shell and the second shell, improves the sealing performance of the packaging shell, and fundamentally avoids the possibility of virtual welding. The present application also provides a battery and a terminal device including an encapsulation case.

Description

Packaging case, battery and terminal device

technical field

The present application relates to the technical field of battery packaging, and in particular, to a packaging case, a battery and a terminal device.

Background technique

The battery includes a cell and an encapsulation case for encapsulating the cell. The packaging case 100 ′ (refer to FIG. 1 ) in the related art includes a first case 10 ′ and a second case 20 ′, and the first case 10 ′ and the second case 20 ′ use flanges (see FIG. 1 ) If the battery is encapsulated in the connection method of the area A) in the package, the encapsulated battery occupies a large space and increases the installation volume of the battery; The second casing 20' is not completely sealed or easily separated from each other, which affects the safe use of the battery.

Utility model content

In view of this, it is necessary to provide an encapsulation case with small footprint and reliable connection, a battery including the encapsulation case, and a terminal device, so as to solve the above-mentioned technical problems.

In a first aspect, the present application provides an encapsulation case, the encapsulation case includes a first casing and a second casing. The first casing includes a bottom plate and a first side plate, and the first side plate is arranged around the periphery of the bottom plate; the second casing includes a top plate and a second side plate, and the second side plate is arranged around the periphery of the top plate and extends toward the first casing ; The inner wall of the second side plate is in contact with the outer wall of the first side plate.

In the above design, the encapsulation structure of the first casing and the second casing avoids the generation of flanges, and when the encapsulation casing is applied to the terminal device, the occupied space of the encapsulation casing in the terminal device is reduced; on the other hand, The inner wall of the second side plate is in contact with the outer wall of the first side plate, which increases the connection area between the first shell and the second shell, improves the sealing performance of the packaging shell, and fundamentally avoids the possibility of virtual welding.

In a possible design, the first side plate is provided with a concave portion, the second side plate is provided with a protruding portion, and the protruding portion is accommodated in the concave portion.

In the above design, the arrangement of the concave portion and the protruding portion, on the one hand, the concave portion has the function of limiting the protruding portion, preventing the movement of the protruding portion, and increasing the connection reliability of the second casing compared with the first casing. On the other hand, the connection area between the first side plate and the second side plate is increased, thereby improving the sealing performance of the first casing and the second casing.

In a possible design, the concave portion is annularly arranged along the outer wall of the first side plate, and the protruding portion is annularly arranged along the inner wall of the second side plate.

In the above design, the annular concave portion has the function of limiting the protruding portion, preventing the movement of the protruding portion, and increasing the connection reliability between the second housing and the first housing; on the other hand, further increasing the first side plate The connection area with the second side plate improves the sealing performance of the first casing and the second casing.

In a possible design, the recessed portion includes a plurality of continuous annular second sub-recessed portions, and the plurality of second sub-recessed portions are arranged at intervals along the extending direction of the second side plate; the protruding portion includes a plurality of continuous annular second sub-recessed portions The second sub-protrusions are arranged at intervals along the extending direction of the second side plate.

In the above design, the plurality of continuous annular second sub-recesses can further increase the reliability of the connection between the second casing and the first casing.

In a possible design, the recessed portion includes a plurality of first sub-recessed portions, and the plurality of first sub-recessed portions are spaced apart from each other and arranged in a ring shape; the protruding portion includes a plurality of first sub-recessed portions, and a plurality of A sub-protrusion is spaced apart from each other and arranged in a ring shape.

In the above design, the plurality of first sub-recesses have the function of limiting the plurality of first sub-protrusions, preventing the movement of the first sub-protrusions, and increasing the connection reliability between the second casing and the first casing; On the other hand, the connection area between the first side plate and the second side plate is further increased, thereby improving the sealing performance of the first casing and the second casing.

In a possible design, a plurality of first sub-recesses are spaced apart from each other and are arranged annularly to form second sub-recesses, the number of the second sub-recesses is multiple, and the plurality of second sub-recesses are arranged along the second sub-recess. The extension directions of the side plates are arranged at intervals; a plurality of first sub-protrusions are spaced apart from each other and are arranged annularly to form second sub-protrusions, the number of the second sub-protrusions is multiple, and a plurality of second sub-protrusions The parts are arranged at intervals along the extending direction of the second side plate.

In the above design, the connection reliability between the second casing and the first casing can be further increased.

In a possible design, the shape of the cross-section of the recessed portion along the direction perpendicular to the bottom plate includes at least one of arc, square, rectangle, triangle and trapezoid; the shape of the cross-section of the protruding portion along the direction perpendicular to the bottom plate It includes at least one of arc, square, rectangle, triangle and trapezoid.

In the above design, the shapes of the concave portion and the protruding portion can be punched as required.

In a possible design, the shape of the cross section of the concave portion along the direction perpendicular to the bottom plate is arc shape, and the shape of the cross section of the protruding portion along the direction perpendicular to the bottom plate is arc shape.

In the above design, the arc-shaped concave and protruding parts make the surface transition smoothly, which can avoid the generation of sharp corners and improve the user's experience; further, it can also prevent the inner wall of the first side plate from synchronously deforming sharp corners, which may cause puncture. Possibilities of batteries.

In a possible design, the shape of the cross-section of the concave portion in the direction perpendicular to the bottom plate is a rectangle; the shape of the cross-section of the protruding portion in the direction perpendicular to the bottom plate is a rectangle.

In the above design, it is a possible implementation of the concave portion and the protruding portion.

In a possible design, the shape of the cross-section of the recessed portion along the direction perpendicular to the bottom plate is a triangle, and the shape of the cross-section of the protruding portion along the direction perpendicular to the bottom plate is a triangle.

In the above design, it is a possible implementation of the concave portion and the protruding portion.

In a possible design, the shape of the cross section of the depression along the direction perpendicular to the bottom plate is a trapezoid, the short side of the trapezoid is located on the side away from the second side plate, and the long side of the trapezoid is located on the side facing the second side plate ; The shape of the cross section of the protruding portion along the direction perpendicular to the bottom plate is a trapezoid.

In the above design, the short side of the trapezoid is located on the side away from the second side plate, and the long side of the trapezoid is located on the side facing the second side plate, which is easier to process and form.

In a possible design, the shape of the cross section of the concave portion along the direction perpendicular to the bottom plate is a trapezoid, the short side of the trapezoid is located on the side facing the second side plate, and the long side of the trapezoid is located on the side away from the second side plate ; The shape of the cross section of the protruding portion along the direction perpendicular to the bottom plate is a trapezoid.

In the above design, the difficulty of separation between the first casing and the second casing is increased, thereby improving the sealing performance of the first casing and the second casing.

In one possible design, the surface of the first side plate facing away from the first side plate has a convex portion.

In the above-mentioned design, it is an embodiment that may exist when the first casing and the second casing are punched.

In one possible design, the surface of the first side panel facing away from the first side panel is flat.

In the above design, it is possible to avoid squeezing the battery cell due to the deformation of the inner wall of the first side plate when forming the concave part and the protruding part, so that the space between the first shell and the second shell can be maximized. space.

In a possible design, the inner wall of the second side plate is in contact with all the outer walls of the first side plate.

In the above design, the connection area between the first side plate and the second side plate can be increased, and the connection reliability between the first casing and the second casing can be increased.

In a possible design, the inner wall of the second side plate is connected in contact with a part of the outer wall of the first side plate.

In the above design, the material usage of the first casing and the second casing can be reduced to reduce the cost, and the weight of the battery can also be reduced, thereby improving the mass energy density of the battery.

In a possible design, the end of the first side plate facing away from the bottom plate abuts against the top plate.

In the above design, it can be set according to the size of the cell and the space of the cavity formed by the sealing of the first casing and the second casing.

In one possible design, the end of the first side panel facing away from the bottom panel is spaced from the top panel.

In the above design, it can be set according to the size of the cell and the space of the cavity formed by the sealing of the first casing and the second casing.

In a second aspect, the present application provides a battery, the battery includes a battery cell and an encapsulation case, and the battery cell is accommodated in a cavity formed by a first case and a second case.

In the above design, the battery has no flange, occupies a small space, and has good sealing performance between the first casing and the second casing.

In a third aspect, the present application provides a terminal device including a battery.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a packaging case provided in the related art.

FIG. 2 is a schematic structural diagram in which the terminal device provided by an embodiment of the present application is a mobile phone.

FIG. 3 is a schematic structural diagram of a battery provided by an embodiment of the present application.

FIG. 4 is a schematic cross-sectional view of a battery provided in an embodiment of the present application.

FIG. 5 is a schematic cross-sectional view of an encapsulation case in which the end of the first side plate is pressed against the top plate according to an embodiment of the present application.

FIG. 6 is a schematic cross-sectional view of an encapsulation case in which the end of the first side plate and the top plate are spaced apart according to an embodiment of the present application.

FIG. 7 is a schematic structural diagram of an encapsulation case provided with annular concave portions and protruding portions according to an embodiment of the present application.

FIG. 8 is a schematic cross-sectional view of the package shown in FIG. 7 along the direction VIII-VIII.

9 is a schematic cross-sectional view of an encapsulation case in which the cross-sections of the recessed portion and the protruding portion are both rectangular according to an embodiment of the present application.

FIG. 10 is a schematic cross-sectional view of an encapsulation case in which the cross-sections of the recessed portion and the protruding portion are both triangular according to an embodiment of the present application.

11 is a schematic cross-sectional view of an encapsulation case in which the cross-sections of the recessed portion and the protruding portion are both trapezoidal according to an embodiment of the present application.

12 is a schematic cross-sectional view of an encapsulation case in which the cross-sections of the recessed portion and the protruding portion are both trapezoidal according to an embodiment of the present application.

FIG. 13 is a schematic structural diagram of a packaging case provided with two annular concave portions and protruding portions according to an embodiment of the present application.

FIG. 14 is a schematic cross-sectional view of the package shown in FIG. 13 along the XIV-XIV direction.

FIG. 15 is a schematic structural diagram of an encapsulation case provided with a concave portion and a protruding portion arranged at intervals according to an embodiment of the present application.

FIG. 16 is a schematic structural diagram of an encapsulation case provided with two circles of concave portions and protruding portions disposed at intervals according to an embodiment of the present application.

FIG. 17 is a schematic cross-sectional view of a packaging case with a convex portion provided by an embodiment of the present application.

Description of main component symbols

terminal device 300 Battery 200 Batteries 210 Encapsulation case 100, 100’ first shell 10, 10’ bottom plate 11 first side panel 13 outer wall 131 depression 133 second sub-recess 133b convex 135 second shell 20, 20’ roof twenty one second side panel twenty three inner wall 231 protrusion 233 first sub-protrusion 233a second sub-protrusion 233b cavity 30

The following specific embodiments will further illustrate the present application in conjunction with the above drawings.

Detailed ways

In order to more clearly understand the above objects, features and advantages of the present application, the present application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features of the embodiments may be combined with each other unless there is conflict. Many specific details are set forth in the following description to facilitate a full understanding of the present application, and the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing particular embodiments only, and are not intended to limit the present application. As used herein, the term "and/or" includes all and any combinations of one or more of the associated listed items.

In each embodiment of the present application, for the convenience of description rather than limitation of the present application, the term "connection" used in the description of the patent application and the claims of the present application is not limited to physical or mechanical connection, whether direct or indirect of. "Up", "Down", "Above", "Down", "Left", "Right", etc. are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship will also correspond accordingly. Change.

Please refer to FIG. 2 , the present application provides a terminal device 300. The terminal device 300 can be any product including the battery 200, including but not limited to mobile phones, notebook computers, cameras, monitors, remote controls, vacuum cleaners, automobiles, etc. In the embodiment, the terminal device 300 is a mobile phone as an example for description.

Please also refer to FIG. 3 , which is a schematic structural diagram of a battery 200 according to an embodiment of the present application. The battery 200 may be a primary battery or a secondary battery. The primary battery includes a zinc-manganese dry battery, and the secondary battery includes a lithium-ion battery, a nickel-hydrogen battery, a lead-acid battery, etc. The battery 200 is applied in the terminal device 300 .

Please refer to FIG. 3 and FIG. 4 together, the battery 200 includes the packaging case 100 and the battery cell 210 . The packaging case 100 includes a first case 10 and a second case 20 , a hollow and airtight packaging case 100 is formed between the first case 10 and the second case 20 , and the inside of the case is used for accommodating cells 210 to form battery 200 . The shape of the battery 200 is not limited, and the shape of the battery 200 may be a regular shape or an irregular shape, that is, a special-shaped shape. Wherein, when the battery 200 has a regular shape, it may include a rectangular battery, a button battery, a cylindrical battery, etc. In this embodiment, the battery is a rectangular battery as an example for description.

Please also refer to FIG. 5 , the first casing 10 includes a bottom plate 11 and a first side plate 13 . The first side plate 13 is annularly arranged around the periphery of the bottom plate 11 , and the first side plate 13 extends in a direction away from the bottom plate 11 on a surface of the bottom plate 11 . The second casing 20 includes a top plate 21 and a second side plate 23 . The second side plate 23 is annularly disposed around the periphery of the top plate 21 , and the second side plate 23 extends toward the first casing 10 on a surface of the top plate 21 . The second casing 20 is covered on the first casing 10 , and the inner wall 231 of the second side plate 23 is in contact with the outer wall 131 of the first side plate 13 , so that the first casing 10 and the second casing 20 are formed. A sealed packaging case 100 having a cavity 30 for accommodating the cells 210 .

The encapsulation structure of the first casing 10 and the second casing 20 avoids the occurrence of flanges (refer to FIG. 1 ), and when the encapsulation casing 100 encapsulates the battery cells 210 and is applied to the terminal device 300 , the encapsulation casing 100 is reduced in size On the other hand, the inner wall 231 of the second side plate 23 is in contact with the outer wall 131 of the first side plate 13 to increase the connection area between the first casing 10 and the second casing 20 , the sealing performance of the package case 100 is improved, and the possibility of virtual soldering is fundamentally avoided.

The first casing 10 and the second casing 20 are made of metal or metal alloy, the metal material can be aluminum, copper, etc., and the metal alloy can be stainless steel, nickel alloy, chrome alloy, and the like. Both the first casing 10 and the second casing 20 may be formed by stamping.

The first side plate 13 and the second side plate 23 can be connected by laser welding. Wherein, by laser welding the first side plate 13 and the second side plate 23 , the connection reliability of the first casing 10 and the second casing 20 is high, and the laser welding processing method is easier to operate.

The bottom plate 11 and the first side plate 13 can be an integral structure, which is easy to form, or can be two independent parts, which are then connected by welding, bonding, or the like. In this embodiment, the bottom plate 11 and the first side plate 13 are integrally formed, which can improve the sealing performance of the packaging case 100 .

The top plate 21 and the second side plate 23 can be an integral structure, which is easy to form, or can be two independent parts, which are then connected by welding, bonding, or the like. In this embodiment, the top plate 21 and the second side plate 23 are integrally formed, which can improve the sealing performance of the packaging case 100 .

In some embodiments, the inner wall 231 of the second side plate 23 may be in contact with all the outer walls 131 of the first side plate 13 to increase the connection area between the first side plate 13 and the second side plate 23 . Referring to FIG. 5 , in some embodiments, the inner wall 231 of the second side plate 23 may only be in contact and connected with a part of the outer wall 131 of the first side plate 13 , which can reduce the material of the first casing 10 and the second casing 20 In order to reduce the cost, the weight of the battery 200 can also be reduced, thereby increasing the mass energy density of the battery 200 .

The end of the first side plate 13 facing away from the bottom plate 11 may abut with the top plate 21 (refer to FIG. 5 ), or may be spaced from the top plate 21 (refer to FIG. 6 ).

Please refer to FIG. 7 and FIG. 8 , the area where the first side panel 13 and the second side panel 23 are connected is provided with a recessed portion 133 , and the recessed portion 133 is recessed from the outer wall 131 of the first side panel 13 toward the direction away from the second side panel 23 . form. The area where the second side plate 23 is connected to the first side plate 13 is provided with a protruding portion 233 formed by protruding from the inner wall 231 of the second side plate 23 toward the first side plate 13 . The protruding portion 233 is accommodated in the recessed portion 133 , and the recessed portion 133 confines the protruding portion 233 in the recessed portion 133 , preventing the protruding portion 233 from moving and preventing the second housing 20 from moving relative to the first housing 10 . , to increase the connection reliability between the second casing 20 and the first casing 10 , thereby improving the sealing performance of the packaging casing 100 ; in addition, the arrangement of the protruding portion 233 and the concave portion 133 increases the first side plate 13 and the second side plate 13 . The connection area of the board 23 can improve the sealing performance of the packaging case 100 .

Referring to FIG. 7 , in some embodiments, the concave portion 133 may be continuously annularly disposed on the first side plate 13 , and the protruding portion 233 may also be continuously annularly disposed on the second side plate 23 . The concave portion 133 and the protruding portion 233 may be formed by punching.

In some embodiments, the recessed portion 133 may be a plurality of first sub-recessed portions (not shown) spaced apart from each other, and the plurality of first sub-recessed portions are arranged on the first side plate 13 in a ring-shaped arrangement, and the protruding portion 233 also corresponds to a plurality of first sub-protrusions 233a (please refer to FIG. 15 ) arranged on the second side plate 23 in an annular arrangement, and the number of the first sub-protrusions 233a and the first sub-recesses is the same.

8 to 12 , the cross section of the recessed portion 133 along the direction perpendicular to the bottom plate 11 or the top plate 21 may be a regular shape or an irregular shape; the protruding portion 233 also has a shape corresponding to the recessed portion 133 . Wherein, the regular shape includes but is not limited to at least one of an arc (as shown in FIG. 8 ), a square, a rectangle (as shown in FIG. 9 ), a triangle (as shown in FIG. 10 ), and a trapezoid (as shown in FIG. 11 and FIG. 12 ).

Referring to FIG. 8 , in some embodiments, the cross-section of the concave portion 133 is arc-shaped, and the cross-section of the protruding portion 233 is also arc-shaped that is adapted to the concave portion 133 . The arc-shaped concave part 133 and the protruding part 233 make the surface transition smoothly, which can avoid the generation of sharp corners and improve the user's experience; further, it can also prevent the inner wall of the first side plate 13 from synchronously deforming sharp corners, which may cause punctures Possibility of cell 210.

Referring to FIG. 9 , in some embodiments, the cross-section of the concave portion 133 is rectangular, and the cross-section of the protruding portion 233 is also a rectangle that matches the concave portion 133 .

Referring to FIG. 10 , in some embodiments, the cross-section of the concave portion 133 is triangular, and the cross-section of the protruding portion 233 is also a triangle that matches the concave portion 133 .

Referring to FIG. 11 , in some embodiments, the cross section of the concave portion 133 is a trapezoid, the short side of the trapezoid is located on the side away from the second side plate 23 , the long side of the trapezoid is located on the side facing the second side plate 23 , the convex The cross-section of the extending portion 233 is also a trapezoid that matches the recessed portion 133 . The trapezoidal shape in this embodiment is easier to process.

Referring to FIG. 12 , in some embodiments, the cross section of the concave portion 133 is a trapezoid, the short side of the trapezoid is located on the side facing the second side plate 23 , the long side of the trapezoid is located on the side away from the second side plate 23 , and the convex The cross section of the extending portion 233 is also a trapezoid that matches the recessed portion 133 . The adapted trapezoidal structure in this embodiment increases the difficulty of separation between the first casing 10 and the second casing 20 , thereby improving the sealing performance of the first casing 10 and the second casing 20 .

It should be noted that when the recessed portion 133 is composed of a plurality of first sub-recessed portions, and the protruding portion is also composed of a plurality of first sub-protruding portions correspondingly, the above-mentioned cross-sectional shapes can also be combined with each other in the same embodiment. For example, in the same embodiment, the cross-section of the recessed portion 133 is a rectangle and a trapezoid, and the cross-section of the protruding portion 233 is also a rectangle and a trapezoid that match the recessed portion 133 .

In some embodiments, along the extending direction of the second side plate 23 , the number of the concave parts 133 may be one (as shown in FIGS. 7 and 15 ) or more (as shown in FIGS. 13 and 16 ), and the number of the protruding parts 233 The number of the recessed portions 133 is one or more.

13 and 14, when the recessed portion 133 includes the second sub-recessed portion 133b, the plurality of second sub-recessed portions 133b may be arranged in parallel and spaced apart along the extending direction of the second side plate 23, and each A second sub-recess 133 b is annularly disposed along the outer wall 131 of the first side plate 13 . The plurality of second sub-recesses 133b are arranged at intervals. The protruding portion 233 correspondingly includes a plurality of second sub-protruding portions 233 b arranged at intervals, and each second sub-protruding portion 233 b is annularly arranged along the inner wall 231 of the second side plate 23 . Along the extending direction of the second side plate 23, a plurality of second sub-recesses 133b and corresponding second sub-protrusions 233b are provided. The plurality of second sub-recesses 133 b and the plurality of second sub-protrusions 233 b further increase the connection reliability between the first casing 10 and the second casing 20 , thereby increasing the sealing performance of the package casing 100 .

Referring to FIG. 16 , when the recessed portion 133 includes a plurality of first sub-recessed portions arranged at intervals and arranged in a ring shape, the plurality of first sub-recessed portions are spaced apart from each other and arranged in a ring shape along the outer wall 131 of the first side plate 13 The second sub-recess 133b is formed into a plurality of second sub-recesses 133b, and the plurality of second sub-recesses 133b are arranged at intervals along the extending direction of the second side plate 23; the plurality of first sub-protrusions 233a are mutually The second sub-protrusions 233b are spaced and arranged annularly. The number of the second sub-protrusions 233b is multiple, and the plurality of second sub-protrusions 233b are arranged at intervals along the extending direction of the second side plate 23 . The plurality of second sub-recesses 133 b and the plurality of second sub-protrusions 233 b further increase the connection reliability between the first casing 10 and the second casing 20 , thereby increasing the sealing performance of the packaging casing 100 .

Referring to FIG. 17 , in some embodiments, the inner wall of the first side plate 13 (ie, the surface of the first side plate 13 facing away from the second side plate 23 ) has a convex portion 135 , and the convex portion 135 may be formed in the recessed portion 133 In the process of assembling the battery 200, the second side plate 23 and the one side plate are directly pressed together after being attached to each other, and the protruding portion 233 is formed on the second side plate 23 and the first side plate 13. At the same time as the concave portion 133 is formed, the convex portion 135 is simultaneously formed on the inner wall of the first side plate 13. The above processing method can be directly punched, which is convenient for processing and saves processing cost.

In some embodiments, while the concave portion 133 is formed on the first side plate 13, the convex portion 135 may not be formed on the inner surface of the first side plate 13, that is, the inner surface of the first side plate 13 is flat (see Figure 8 to Figure 12, Figure 14). Wherein, due to the ductility of the material of the first casing 10, the convex portion 135 may not be formed when the concave portion 133 is formed; or a groove may be formed on the outer wall 131 of the first side plate 13 in advance, and then the concave portion 133 is formed. The second side plate 23 is punched with the first side plate 13 having the groove, and a partial area of the second side plate 23 fills the groove to form the protruding portion 233 . The above structure can prevent the cell 210 from being squeezed due to the deformation of the inner wall of the first side plate 13 when the concave portion 133 and the protruding portion 233 are formed, so that the first casing 10 and the second casing can be utilized to the maximum extent. space between 20.

The above embodiments are only used to illustrate the technical solutions of the present application rather than limitations. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced. Neither should depart from the spirit and scope of the technical solutions of the present application.

Claims (20)

1. A package, comprising:

the first shell comprises a bottom plate and a first side plate, and the first side plate is arranged around the periphery of the bottom plate in a surrounding manner; and

the second shell comprises a top plate and a second side plate, and the second side plate is arranged around the periphery of the top plate and extends towards the first shell;

wherein, the inner wall of second curb plate with the outer wall contact of first curb plate is connected.

2. The enclosure of claim 1, wherein the first side panel has a recess formed therein and the second side panel has a protrusion formed therein, the protrusion being received in the recess.

3. The enclosure of claim 2, wherein the recess is annularly disposed along an outer wall of the first side plate and the protrusion is annularly disposed along an inner wall of the second side plate.

4. The package of claim 3, wherein the recess comprises a plurality of annular second sub-recesses, and the plurality of second sub-recesses are spaced apart along the extending direction of the second side plate; the protruding portion comprises a plurality of continuous annular second sub-protruding portions, and the plurality of second sub-protruding portions are arranged at intervals along the extending direction of the second side plate.

5. The package of claim 2, wherein the recess comprises a plurality of first sub-recesses, the plurality of first sub-recesses being spaced apart from one another and arranged in a ring; the protruding portion comprises a plurality of first sub-protruding portions which are mutually spaced and annularly arranged.

6. The package casing according to claim 5, wherein the first sub-recesses are spaced from each other and arranged in a ring shape to form a second sub-recess, the second sub-recesses are plural in number, and the second sub-recesses are spaced along the extending direction of the second side plate; the first sub-protruding portions are arranged at intervals in an annular mode to form a plurality of second sub-protruding portions, the number of the second sub-protruding portions is multiple, and the second sub-protruding portions are arranged at intervals in the extending direction of the second side plate.

7. The package of any of claims 2-6, wherein a cross-sectional shape of the recess in a direction perpendicular to the bottom plate comprises at least one of an arc, a square, a rectangle, a triangle, and a trapezoid; the shape of the cross section of the protruding part along the direction perpendicular to the bottom plate comprises at least one of an arc, a square, a rectangle, a triangle and a trapezoid.

8. The package according to any one of claims 2 to 6, wherein a cross section of the recess in a direction perpendicular to the bottom plate is arc-shaped, and a cross section of the protrusion in a direction perpendicular to the bottom plate is arc-shaped.

9. A package according to any of claims 2 to 6, wherein the recess has a rectangular cross-section in a direction perpendicular to the base plate; the cross section of the protruding part along the direction vertical to the bottom plate is rectangular.

10. A package according to any one of claims 2 to 6, wherein the recess has a triangular shape in cross section in a direction perpendicular to the base plate, and the protrusion has a triangular shape in cross section in a direction perpendicular to the base plate.

11. A package according to any of claims 2-6, wherein the cross-section of the recess in a direction perpendicular to the bottom plate has the shape of a trapezoid, the shorter side of the trapezoid being located at the side facing away from the second side plate and the longer side of the trapezoid being located at the side facing towards the second side plate; the shape of the cross section of the protruding part along the direction perpendicular to the bottom plate is trapezoidal.

12. A package according to any of claims 2-6, wherein the cross-section of the recess in a direction perpendicular to the bottom plate has the shape of a trapezoid, the shorter side of the trapezoid being located on the side facing the second side plate and the longer side of the trapezoid being located on the side facing away from the second side plate; the shape of the cross section of the protruding part along the direction perpendicular to the bottom plate is trapezoidal.

13. A package according to any of claims 2-6 wherein the surface of the first side plate facing away from the first side plate has a protrusion.

14. A package according to any of claims 2-6 wherein the surface of the first side panel facing away from the first side panel is planar.

15. A package according to any of claims 1-6, wherein the inner wall of the second side panel is in contact connection with all outer walls of the first side panel.

16. A package according to any of claims 1-6, wherein the inner wall of the second side panel is in contact connection with part of the outer wall of the first side panel.

17. A package according to any of claims 1-6, wherein the end of the first side plate facing away from the bottom plate abuts against the top plate.

18. A package according to any of claims 1-6, wherein the end of the first side plate facing away from the bottom plate is spaced from the top plate.

19. A battery, comprising:

an electric core; and

the enclosure of any of claims 1-18, wherein the cell is housed in a cavity formed by the first housing and the second housing.

20. A terminal device characterized in that the terminal device comprises the battery of claim 19.

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