Battery and electric equipment
By introducing a positioning part and a sealing edge matching structure into the battery casing, the problem of difficult welding of thin casings is solved, stable connection and improved sealing are achieved, and the overall structure of the battery is enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-13
AI Technical Summary
In the prior art, as the thickness of the upper and lower shells is reduced, welding connections become difficult, making it hard to achieve battery shell connections.
The first and second positioning parts are used in conjunction, and the first and second sealing edges are connected by welding or other methods to provide sufficient space for a stable connection of the shell.
It improves the stability and sealing of the casing connection, reduces manufacturing difficulty, and enhances the overall structural strength and sealing of the battery.
Smart Images
Figure CN223993318U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery structure technology, and in particular to a battery and electrical device. Background Technology
[0002] A battery is a device that converts chemical energy into electrical energy, which can then power other electrical components to perform their functions.
[0003] A battery typically consists of an upper casing and a lower casing, which are interlocked and welded together to form a space that accommodates the battery core.
[0004] In related technologies, in order to reduce space occupation, the thickness of the upper and lower shells is getting thinner and thinner, which makes it difficult to connect the upper shells by welding. Utility Model Content
[0005] In view of this, this application provides a battery and electrical device that facilitates the connection between the upper and lower housings.
[0006] Specifically, the following technical solutions are included:
[0007] A first aspect of this application provides a battery comprising a first housing and a second housing, wherein...
[0008] The first housing includes a first positioning part, a first sealing edge, and a first bottom plate. The first sealing edge extends circumferentially along the first bottom plate, and the first positioning part is connected to the first bottom plate through the first sealing edge.
[0009] The second housing has a second positioning part, a second sealing edge, and a second bottom plate. The second sealing edge extends circumferentially along the second bottom plate and is connected to the second bottom plate.
[0010] One side of the first sealing edge is attached to one side of the second sealing edge, and cooperates with the first base plate and the second base plate to form a receiving cavity;
[0011] The first positioning part and the second positioning part are connected in cooperation.
[0012] Optionally, the first edge banding extends circumferentially along the first base plate in a ring shape, and the second edge banding extends circumferentially along the second base plate with a notch between its two ends, a portion of the first edge banding extending into the notch.
[0013] Optionally, the first edge banding includes a plurality of first extension segments, all of which extend circumferentially along the first base plate. The plurality of first extension segments are connected end to end to form a ring, and the first extension segments are integrally formed with the first base plate.
[0014] Optionally, the second edge sealing includes a plurality of second extension segments, all of which extend circumferentially along the second base plate, and adjacent second extension segments are welded together.
[0015] Optionally, each of the second extension segments is integrally formed with the second base plate.
[0016] Optionally, the battery includes a terminal post extending from the receiving cavity, and the first sealing edge has a through hole through which the terminal post extends from the receiving cavity.
[0017] Optionally, the through hole and the first positioning part are located on the same side of the first base plate.
[0018] Optionally, the thickness of the first housing ranges from 25 to 150 micrometers, and / or the thickness of the second housing ranges from 25 to 150 micrometers.
[0019] Optionally, the orthographic projection of the first positioning part on the projection plane completely coincides with the orthographic projection of the second positioning part on the projection plane, and the projection plane is a plane parallel to the mating surface of the first positioning part and the second positioning part.
[0020] A second aspect of this application provides an electrical device comprising a battery as described in the above technical solutions.
[0021] The beneficial effects of the technical solution provided in this application include at least the following: the receiving cavity formed by the cooperation of the first base plate and the second base plate can accommodate components such as the core roll to provide protection for them. The cooperation of the first positioning part and the second positioning part can provide positioning for the connection between the first edge seal and the second edge seal, and the two provide space for connection by fitting together, which is beneficial for the first edge seal and the second edge seal to be connected during manufacturing. One side of the first edge seal and one side of the second edge seal are fitted together, providing sufficient space for the two to be connected by welding or other connection methods. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A full cross-sectional schematic diagram of a battery provided in an embodiment of this application;
[0024] Figure 2 A schematic full cross-sectional view of another battery provided in an embodiment of this application;
[0025] Figure 3 This is a schematic diagram of the structure of a first housing provided in an embodiment of this application;
[0026] Figure 4 This is a schematic diagram of the structure of a second housing provided in an embodiment of this application.
[0027] The reference numerals in the figure indicate:
[0028] 100. Receiving cavity;
[0029] 1. First housing; 11. First edge sealing; 111. First extension section; 12. First positioning part; 13. First base plate;
[0030] 2. Second housing; 21. Second edge sealing; 211. Second extension section; 22. Second positioning part; 23. Second base plate;
[0031] 3. Pole post.
[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0034] In the embodiments of this application, directional terms such as "upper," "lower," and "side" are generally used in the following ways: Figure 1 The relative positions shown are based on the given information, and these directional terms are used only to more clearly describe the relationships between structures, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged.
[0035] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.
[0036] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0037] The first aspect of this application provides a battery, such as Figure 1 and Figure 2As shown, the battery includes a first casing 1 and a second casing 2, wherein,
[0038] The first housing 1 includes a first positioning part 12, a first sealing edge 11, and a first bottom plate 13. The first sealing edge 11 extends circumferentially along the first bottom plate 13, and the first positioning part 12 is connected to the first bottom plate 13 through the first sealing edge 11.
[0039] The second housing 2 includes a second positioning part 22, a second sealing edge 21, and a second bottom plate 23. The second sealing edge 21 extends circumferentially along the second bottom plate 23 and is connected to the second bottom plate 23.
[0040] One side of the first sealing edge 11 is attached to one side of the second sealing edge 21, and cooperates with the first base plate 13 and the second base plate 23 to form a receiving cavity 100.
[0041] The first positioning part 12 and the second positioning part 22 are connected together.
[0042] Understandably, the cavity 100 formed by the first base plate 13 and the second base plate 23 can accommodate components such as the core roll to provide protection. The first positioning part 12 and the second positioning part 22 cooperate to position the connection between the first sealing edge 11 and the second sealing edge 21. The two parts are fitted together to provide space for connection, which is beneficial for the first sealing edge 11 and the second sealing edge 21 to be connected during manufacturing. One side of the first sealing edge 11 is fitted together with one side of the second sealing edge 21, providing sufficient space for the two to be connected by welding or other connection methods.
[0043] In this embodiment, the first positioning part 12 and the second positioning part 22 can be connected by welding or other means, so that the first base plate 13 and the second base plate 23 are relatively fixed, which is conducive to the connection between the first sealing edge 11 and the second sealing edge 21.
[0044] In this embodiment, the first positioning part 12 and the second positioning part 22 can form a weld by means of laser welding or the like, and the weld penetrates from the first positioning part 12 to the second positioning part 22, thus achieving connection.
[0045] In this embodiment, the first sealing edge 11 and the second sealing edge 21 can form a weld by means of laser welding or the like, and the weld penetrates from the first sealing edge 11 to the second sealing edge 21, thus achieving connection.
[0046] In this embodiment of the application, the first sealing edge 11 can be connected by welding its inner side to the outer side of the second sealing edge 21, or by welding its outer side to the inner side of the second sealing edge 21.
[0047] In some embodiments of this application, such as Figure 3 and Figure 4As shown, the first sealing edge 11 extends circumferentially along the first base plate 13 and is ring-shaped, and the second sealing edge 21 extends circumferentially along the second base plate 23 with a notch between its two ends, and a portion of the first sealing edge 11 extends into the notch.
[0048] It is understandable that the annular first sealing edge 11 can cooperate with the second sealing edge 21 to form a receiving cavity 100. The notch of the second sealing edge 21 facilitates the insertion of the first sealing edge 11, reducing the interference of the first sealing edge 11 and the second sealing edge 21 on the first positioning part 12 and the second positioning part 22. This facilitates the cooperation of the first positioning part 12 and the second positioning part 22 to relatively fix the position of the first base plate 13 and the second base plate 23.
[0049] In this embodiment of the application, the first sealing edge 11 and the second sealing edge 21 can be welded to form a weld, thereby sealing the position of the notch and improving the sealing performance of the receiving cavity 100.
[0050] In some embodiments of this application, such as Figure 3 and Figure 4 As shown, the first edge sealing 11 includes multiple first extension segments 111, which extend along the circumference of the first base plate 13. The multiple first extension segments 111 are connected end to end to form a ring, and the first extension segments 111 are integrally formed with the first base plate 13.
[0051] Understandably, the multiple first extension segments 111 are connected to the second sealing edge 21 respectively, forming a relatively sealed receiving cavity 100 to accommodate components such as the core. The first extension segments 111 are integrally formed with the first base plate 13, which helps to reduce the manufacturing difficulty of the first base plate 13 and improve manufacturing efficiency.
[0052] In this embodiment, the first base plate 13 and the first extension 111 can be processed on a sheet metal part by means of stamping or other methods, and the part that is not stamped forms the first positioning part 12.
[0053] In the embodiments of this application, the number of the first extension segments 111 can be 3, 4 or 5, or other numbers.
[0054] In some embodiments of this application, such as Figure 4 As shown, the second edge sealing 21 includes a plurality of second extension segments 211, all of which extend circumferentially along the second base plate 23, and adjacent second extension segments 211 are welded together.
[0055] Understandably, multiple second extension segments 211 are connected to the first sealing edge 11 respectively, and can cooperate with the first sealing edge 11 to form a relatively sealed receiving cavity 100. Welding adjacent second extension segments 211 together helps to improve the sealing performance of the enclosed receiving cavity 100.
[0056] In the embodiments of this application, the number of second extension segments 211 can be 3, 4 or 5, or other numbers.
[0057] In some embodiments of this application, each second extension 211 is integrally formed with the second base plate 23.
[0058] Understandably, this setup helps reduce the manufacturing difficulty of the second base plate 23 and improves manufacturing efficiency.
[0059] In this embodiment, the second base plate 23 can be processed on sheet metal parts, wherein the second extension 211 can be formed by bending or other processes, and adjacent second extensions 211 are welded after bending to form the second extension.
[0060] In some embodiments of this application, the battery includes a terminal post 3 extending from a receiving cavity 100, and a first sealing edge 11 having a through hole through which the terminal post 3 extends from the receiving cavity 100.
[0061] Understandably, pole post 3 is used to mate with the winding core, allowing the electrical energy converted from chemical energy to be transmitted to other electrical components, thus realizing the transmission of electrical energy. The through hole serves as a channel for pole post 3, facilitating the mating of pole post 3 with the winding core.
[0062] In this embodiment, the pole post 3 can form a seal on the through hole to improve the sealing performance of the receiving cavity 100.
[0063] In some embodiments of this application, the through hole and the first positioning part 12 are located on the same side of the first base plate 13.
[0064] Understandably, by arranging the terminal post 3 and the first positioning part 12 on the same side of the first base plate 13, the compactness of the battery is improved, which is beneficial to reducing the size of the battery.
[0065] In some embodiments of this application, the thickness of the first housing 1 ranges from 25 to 150 micrometers.
[0066] It is understandable that, within the above range of values, the first housing 1 forms a cavity 100 by cooperating with the second housing 2 through the first positioning part 12 and the first sealing edge 11, so that the battery as a whole has a small volume while accommodating components such as the winding core of the same volume.
[0067] In this embodiment of the application, the thickness of the first housing 1 can be 25 micrometers, 30 micrometers, 35 micrometers, 40 micrometers, 45 micrometers, 50 micrometers, 55 micrometers, 60 micrometers, 65 micrometers, 70 micrometers, 75 micrometers, 80 micrometers, 85 micrometers, 90 micrometers, 95 micrometers, 100 micrometers, 105 micrometers, 110 micrometers, 115 micrometers, 120 micrometers, 125 micrometers, 130 micrometers, 135 micrometers, 140 micrometers, 145 micrometers, or 150 micrometers, or other values from 25 to 150 micrometers.
[0068] In some embodiments of this application, the thickness of the second housing 2 ranges from 25 to 150 micrometers.
[0069] It is understandable that, within the above range of values, the second housing 2 forms a cavity 100 by cooperating with the second positioning part 22 and the second sealing edge 21, so that the battery as a whole has a small volume while accommodating components such as the winding core of the same volume.
[0070] In this embodiment of the application, the thickness of the first housing 1 can be 25 micrometers, 30 micrometers, 35 micrometers, 40 micrometers, 45 micrometers, 50 micrometers, 55 micrometers, 60 micrometers, 65 micrometers, 70 micrometers, 75 micrometers, 80 micrometers, 85 micrometers, 90 micrometers, 95 micrometers, 100 micrometers, 105 micrometers, 110 micrometers, 115 micrometers, 120 micrometers, 125 micrometers, 130 micrometers, 135 micrometers, 140 micrometers, 145 micrometers, or 150 micrometers, or other values from 25 to 150 micrometers.
[0071] In this embodiment of the application, the thickness of the first shell 1 ranges from 25 to 150 micrometers, and the thickness of the second shell 2 ranges from 25 to 150 micrometers.
[0072] In some embodiments of this application, the side of the first positioning part 12 facing the second base plate 23 is attached to the side of the second positioning part 22 facing the first base plate 13. The orthographic projection of the first positioning part 12 on the projection plane is completely superimposed on the orthographic projection of the second positioning part 22 on the projection plane. The projection plane is a plane parallel to the contact surface of the first positioning part 12 and the second positioning part 22.
[0073] Understandably, this arrangement is advantageous because the first positioning part 12 and the second positioning part 22 can be fully fitted together to indicate that the first housing 1 and the second housing 2 are in suitable welding positions, which is beneficial to the welding of the first housing 1 and the second housing 2.
[0074] In this embodiment of the application, the orthographic projection of the first positioning part 12 can be a shape such as a rectangle.
[0075] A second aspect of this application provides an electrical device that includes a battery as described in the above embodiments.
[0076] It is understood that the electrical equipment uses the battery of the above embodiment, and therefore has the same technical effect as the above embodiment, which will not be repeated here.
[0077] In this embodiment of the application, the electrical device can be a smartphone, tablet computer, or other similar product.
[0078] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.
[0079] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.
[0080] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A battery, characterized by, The battery comprises a first shell (1) and a second shell (2), wherein, The first shell (1) comprises a first positioning part (12), a first sealing edge (11) and a first bottom plate (13), the first sealing edge (11) extends along the circumference of the first bottom plate (13), and the first positioning part (12) is connected with the first bottom plate (13) through the first sealing edge (11); The second shell (2) comprises a second positioning part (22), a second sealing edge (21) and a second bottom plate (23), the second sealing edge (21) extends along the circumference of the second bottom plate (23), and the second sealing edge (21) is connected with the second bottom plate (23); One side of the first sealing edge (11) is connected with one side of the second sealing edge (21), and the first bottom plate (13) and the second bottom plate (23) cooperate to form a containing cavity (100); The first positioning part (12) cooperates with the second positioning part (22).
2. The battery of claim 1, wherein, The first sealing edge (11) extends along the circumference of the first bottom plate (13) and is annular, the second sealing edge (21) has a gap between the two ends extending along the circumference of the second bottom plate (23), and a part of the first sealing edge (11) extends into the gap.
3. The battery of claim 2, wherein, The first sealing edge (11) comprises a plurality of first extension segments (111), each of the plurality of first extension segments (111) extends along the circumference of the first bottom plate (13), the plurality of first extension segments (111) are sequentially connected in a ring shape, and the first extension segment (111) is integrally formed with the first bottom plate (13).
4. The battery of claim 2, wherein, The second sealing edge (21) comprises a plurality of second extension segments (211), each of the plurality of second extension segments (211) extends along the circumference of the second bottom plate (23), and adjacent second extension segments (211) are welded.
5. The battery of claim 4, wherein, Each of the second extension segments (211) is integrally formed with the second bottom plate (23).
6. The battery of claim 1, wherein, The battery comprises a pole (3) which extends from the containing cavity (100), the first sealing edge (11) has a through hole, and the pole (3) extends from the containing cavity (100) through the through hole.
7. The battery of claim 6, wherein, The through hole and the first positioning part (12) are located on the same side of the first bottom plate (13).
8. The battery of claim 1, wherein, The thickness of the first shell (1) ranges from 25 to 150 microns, And / or, The thickness of the second shell (2) ranges from 25 to 150 microns.
9. The battery of claim 1, wherein, One side of the first positioning part (12) is connected with one side of the second positioning part (22) facing the second bottom plate (23), the front projection of the first positioning part (12) on a projection plane is completely coincident with the front projection of the second positioning part (22) on the projection plane, and the projection plane is a plane parallel to the abutting surface of the first positioning part (12) and the second positioning part (22).
10. An electric device, characterized by The electric device comprises the battery according to any one of claims 1 to 9.