Battery packaging structure, battery and electric equipment

Abstract

The utility model discloses a battery packaging structure, a battery and electric equipment, the battery packaging structure comprises a battery packaging shell, a circuit protection module and a tab, the battery packaging shell is used for packaging a battery cell; the circuit protection module is arranged at the end part of the battery packaging shell, and the tab is arranged between the battery packaging shell and the circuit protection module; along the arrangement direction of the battery packaging shell and the circuit protection module, the tab is of a Z-shaped bent structure, and the number of bent edges of the Z-shaped bent structure is not less than three. Compared with a C-shaped structure or a U-shaped structure, the tab is bent into the Z-shaped bent structure, so that the section modulus is larger, the rigidity and the stability are higher, and a good connection effect can be achieved even under the conditions of larger span and high load, so that the influence of external force can be reduced, and the overall strength of the battery is improved; in addition, the tabs of the Z-shaped bent structures are good in flatness, and the flatness of battery forming can be improved when the tabs are used in batteries.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a battery packaging structure, battery and electric equipment. BACKGROUND

[0002] In the battery technology field, with the rapid development of mobile devices and electric vehicles, the requirements for battery performance are getting higher and higher, including energy density, safety and volume utilization rate. In the traditional battery packaging structure, the circuit protection module is usually placed parallel to the battery, and is connected with the battery through the "C-shaped" or "U-shaped" tab. Since the "C-shaped" or "U-shaped" tab structure is easy to deform when subjected to pressure, tension or torsion, it can easily affect the flatness and strength of the battery. SUMMARY

[0003] The utility model embodiment provides a kind of battery packaging structure, battery and electric equipment, to solve the problem that circuit protection module occupies larger packaging space and affects the flatness of battery end, reach the effect of improving battery space utilization and flatness.

[0004] Specifically, the utility model provides a kind of battery packaging structure, including battery packaging shell, circuit protection module and tab, the battery packaging shell is used to package electric core;The circuit protection module is arranged at the end of the battery packaging shell, and the tab is arranged between the battery packaging shell and the circuit protection module;Along the arrangement direction of the battery packaging shell, the circuit protection module, the tab is Z-shaped bending structure, the number of bending edge of the Z-shaped bending structure is not less than three.

[0005] Optionally, the number of bending edge of the Z-shaped bending structure is three;The tab includes first connecting sheet, second connecting sheet, third connecting sheet, the first connecting sheet is laid on the end of the battery packaging shell, for connecting the electric core;The third connecting sheet is connected with the circuit protection module, and is parallelly arranged with the first connecting sheet;The second connecting sheet is obliquely arranged, and both ends of the second connecting sheet are connected with the first connecting sheet and the third connecting sheet respectively.

[0006] Optionally, the tab is integrally bent and formed.

[0007] Optionally, the circuit protection module is parallelly arranged with the end surface of the battery packaging shell.

[0008] Optionally, the first support block is arranged at the circuit protection module and the tab.

[0009] Optionally, the first support block is formed by epoxy resin curing.

[0010] Optionally, the battery packaging shell comprises a top sealing edge and side sealing edges located on both sides of the top sealing edge; both ends of the top sealing edge are connected with the end portions of the side sealing edges respectively to package the battery cell.

[0011] The top sealing edge comprises a second main body portion and second extension portions located at both ends of the second main body portion, and the second main body portion is used for laying on the end portion of the battery cell.

[0012] Optionally, the side sealing edge comprises a first main body portion and a first extension portion located at one end of the first main body portion, and the top end of the first extension portion extends obliquely towards the other side sealing edge;

[0013] The top end of the second extension portion extends obliquely towards the first extension portion; and the second extension portion is connected with the first extension portion to form a containing cavity for support between the first extension portion, the second extension portion and the battery cell.

[0014] Optionally, the containing cavity is filled with a second support block.

[0015] Optionally, the second support block is formed by resin curing; and the first support block and the second support block are both integrally formed structural members.

[0016] The utility model also provides a battery, comprising a battery cell and the battery packaging structure of any one of the above, the battery cell is packaged in the battery packaging shell.

[0017] The utility model also provides a kind of electric equipment, comprising the battery of any one of the above.

[0018] The utility model has the advantages that:

[0019] The utility model bends the tab into Z-shaped bending structure, compared with the cross section modulus of C-shaped structure or U-shaped structure is larger, rigidity and stability are higher, even in larger span and high load condition can play good connecting effect, therefore can reduce the influence of external force, to improve the strength of battery as a whole;And, the tab flatness of Z-shaped bending structure is good, is used in battery to improve the flatness of battery forming. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be simply introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor of the ordinary skilled in the art.

[0021] Figure 1is a schematic partial structure diagram of the battery in an embodiment of the utility model;

[0022] Figure 2 is a schematic partial enlarged view of the battery in an embodiment of the utility model;

[0023] Figure 3 is a schematic partial cross-sectional view of the battery in an embodiment of the utility model;

[0024] Figure 4 is a schematic structure diagram of the battery in an embodiment of the utility model;

[0025] Figure 5 is a schematic structure diagram of the battery in an embodiment of the utility model;

[0026] Figure 6 is a schematic structure diagram of the battery in an embodiment of the utility model.

[0027] In the drawing: 100, cell, 200, tab, 210, first connecting sheet, 220, second connecting sheet, 230, third connecting sheet, 300, circuit protection module, 410, first support block, 500, top edge, 510, second main body part, 520, second extension part, 600, side edge, 610, first main body part, 620, first extension part, 710 / 720, circular track. DETAILED DESCRIPTION

[0028] In order to make the technical problem, technical scheme and beneficial effect solved by the utility model more clearly understood, the utility model is further described in detail below in combination with the drawings and embodiments.It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] In the description of the utility model, it is to be explained that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the internal injection of two elements.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0031] Figure 1 It is the schematic partial structure diagram of the battery in an embodiment of the utility model, as shown in Figure 1 , and referring to Figures 2 to 6 , the utility model embodiment provides a kind of battery packaging structure, including battery packaging shell, circuit protection module 300 and tab 200, the battery packaging shell is used to package electric core 100;The circuit protection module 300 is arranged at the end of the battery packaging shell, and the tab 200 is arranged between the battery packaging shell and the circuit protection module;Along the arrangement direction of the battery packaging shell, the tab 200 is Z-shaped bending structure, the number of bending edge of the Z-shaped bending structure is not less than three.

[0032] The utility model embodiment bends tab 200 into Z-shaped bending structure, compared to the cross section modulus of C-shaped structure or U-shaped structure is larger, rigidity and stability are higher, even in larger span and high load condition can play a very good connecting effect, therefore can reduce the influence of external force, to improve the strength of battery whole;And, the tab 200 flatness of Z-shaped bending structure is good, for battery can improve the flatness of battery forming.

[0033] Specifically, the rigidity, stability, flatness of Z-shaped bending structure is derived from the rigid structure of two triangles of its inclined plane side.The shape structure of triangle can make the force received by Z-shaped bending structure anywhere be directly transmitted to other side, to be evenly dispersed in the whole structure, to keep the stability of shape.Therefore, whether Z-shaped bending structure receives pressure, tension or torsion, can be evenly dispersed and bear the action of these forces through the rigid structure of triangle, keep stable.

[0034] As Figure 3As shown, in one embodiment of the present invention, the number of bending edges of the Z-shaped bending structure is three; the tab 200 includes a first connecting piece 210, a second connecting piece 220, and a third connecting piece 230, and the first connecting piece 210 is laid flat on the end of the battery packaging shell for connecting the battery cell 100; the third connecting piece 230 is connected to the circuit protection module 300 and is arranged parallel to the first connecting piece 210; the second connecting piece 220 is arranged at an angle, and the two ends of the second connecting piece 220 are respectively connected to the first connecting piece 210 and the third connecting piece 230.

[0035] In the embodiment of the present utility model, since the circuit protection module 300 and the battery cell 100 are connected through the tab 200, and the tab 200 is formed by connecting the first connecting piece 210, the second connecting piece 220, and the third connecting piece 230 in sequence, the overall shape is approximately "Z", which not only improves the strength of the tab 200, but also reduces the packaging space occupied by the tab 200, further improving the space utilization of the battery.

[0036] Furthermore, the tab 200 is formed by integral bending and is not connected via any additional connection structure, thereby avoiding usage failures caused by loose connections.

[0037] In one embodiment of the present invention, the circuit protection module 300 is disposed parallel to the end face of the battery packaging shell. In other words, the circuit protection module 300 is disposed parallel to the end face of the battery cell 100. Because the circuit protection module 300 is disposed at one end of the battery cell 100 and parallel to the end face of the battery cell 100, it not only reduces the packaging space occupied by the circuit protection module 300, thereby improving the battery's space utilization, but also better covers the end of the battery, making the end more flat and preventing interference with battery assembly and use.

[0038] like Figure 4 As shown, in one embodiment of the present invention, the battery packaging structure further includes a first support block 410, which is disposed between the circuit protection module 300 and the battery packaging shell. The first support block 410 not only provides support between the battery packaging shell and the circuit protection module 300, preventing the circuit protection module 300 from deformation due to impact, but also protects the tab 200 within the first support block 410, preventing damage to the tab 200 when the battery is impacted.

[0039] Furthermore, the first support block 410 is formed by curing epoxy resin to improve the toughness of the first support block 410 and thereby enhance the impact resistance of the battery. Specifically, the first support block 410 is formed by curing two-component epoxy resin.

[0040] likeFigure 2 As shown in the utility model, in an embodiment of the utility model, the battery packaging shell comprises a top sealing edge 500 and a side sealing edge 600, the top sealing edge 500 is located at one end of the battery cell 100, and the side sealing edge 600 is located at both sides of the battery cell 100; and is laid on the end of the battery cell 100, at least part of the top sealing edge 500 is located in the first supporting block 410; both ends of the top sealing edge 500 are connected with the end of the side sealing edge 600 respectively to package the battery cell 100. The utility model lays the top sealing edge 500 on the end of the battery cell 100, can save the space occupied by the top sealing edge 500, improves the space proportion of the battery cell 100 in the battery, thereby improving the energy density of the battery; and since part of the top sealing edge 500 is located in the first supporting block 410, the first supporting block 410 connects the battery cell 100, the top sealing edge 500 and the circuit protection module 300 as a whole, thereby improving the stability of the battery.

[0041] As shown in the utility model, Figure 5 As shown in the utility model, in an embodiment of the utility model, the side sealing edge 600 comprises a first main body part 610 and a first extension part 620 located at one end of the first main body part 610, the first main body part 610 is located at one side of the battery cell 100, and the top end of the first extension part 620 extends obliquely towards the direction close to the other side sealing edge 600. The top sealing edge 500 comprises a second main body part 510 and a second extension part 520 located at both ends of the second main body part 510, the second main body part 510 is laid on the end of the battery cell 100, the top end of the second extension part 520 extends obliquely towards the direction close to the first extension part 620, the second extension part 520 is connected with the first extension part 620 to form a containing cavity for supporting between the first extension part 620, the second extension part 520 and the battery cell 100.

[0042] In the embodiment, since the oblique first extension part 620 is connected with the second extension part 520 to form a containing cavity for supporting, the containing cavity is approximately triangular as a whole, the structure is stable and not easy to deform, thereby reducing the risk of damage of the side sealing edge 600 caused by external force; and the first extension part 620 located outside the battery is equivalent to a chamfer structure of the battery packaging structure, can reduce the mutual interference with adjacent components, reduce the actual occupied space of the battery, and further improve the volume utilization rate of the battery.

[0043] In an embodiment of the utility model, both ends of the first extension part 620 are located on the same track to match the battery packaging structure with the reserved space of the battery mounting position. Specifically, the track is one of a circle, an ellipse, a square and a triangle.

[0044] Preferably, the track is circular, so that the battery is adapted to a circular electric device (such as a smart watch with a circular appearance), avoiding interference between the first extension 620 and other devices in the electric device, and improving the volume utilization of the electric device.

[0045] As shown in Figure 5 In an embodiment of the utility model, the two ends of the first extension 620 and the middle of the end of the cell 100 away from the top sealing edge 500 are located on the same circular track 710, so as to adapt to the electric device with a part of the side being arc-shaped.

[0046] As shown in Figure 6 In an alternative embodiment of the utility model, the two ends of the first extension 620 and the end of the side sealing edge 600 away from the top sealing edge 500 are located on the same circular track 720, so that the battery can be adapted to a circular electric device (such as a smart watch with a circular appearance); and the two ends of the first extension 620, the end of the side sealing edge 600 away from the top sealing edge 500 are all in abutment with the inner wall of the electric device, forming a limiting effect on the battery.

[0047] In an embodiment of the utility model, the accommodating cavity is filled with a second support block formed by curing of two-component epoxy resin, so as to provide support for the first extension 620 and the second extension 520, and avoid damage to the connection position of the top sealing edge 500 and the side sealing edge 600 when subjected to extrusion or impact. The first support block 410 and the second support block are both integrally formed structural members.

[0048] In the preparation of the battery provided in the embodiments of the utility model, the top sealing edge 500 is shaped by a customized forming jig, so as to realize flat pasting of the top sealing edge 500 and the cell 100; then the circuit protection module 300 is welded on the tab 200, and the tab 200 is Z-shaped bent by a customized jig; finally, an appropriate amount of two-component epoxy resin is injected between the connection position of the top sealing edge 500 and the side sealing edge 600 and between the cell 100 and the circuit protection module 300, so as to cure and form the first support block 410, the second support block or the third support block 420.

[0049] The embodiments of the utility model also provide a battery, which comprises a cell 100 and a battery packaging structure in any one of the above embodiments, so as to have all the effects of the battery packaging structure. The cell 100 is packaged in the battery packaging shell; that is, the cell 100 is packaged between the top sealing edge 500 and the side sealing edge 600.

[0050] The embodiments of the utility model also provide an electric device, which comprises the battery in any one of the above embodiments, so as to have all the effects of the battery.

[0051] The above-described embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A battery packaging structure, characterized by, The battery packaging structure comprises a battery packaging shell, a circuit protection module (300) and a tab (200), the battery packaging shell is used for packaging a battery core (100), the circuit protection module (300) is arranged at an end of the battery packaging shell, and the tab (200) is arranged between the battery packaging shell and the circuit protection module; the tab (200) is in a Z-shaped bending structure along the arrangement direction of the battery packaging shell and the circuit protection module (300), and the number of bending edges of the Z-shaped bending structure is not less than three.

2. The battery packaging structure of claim 1, wherein, The number of bending edges of the Z-shaped bending structure is three; the tab (200) comprises a first connecting sheet (210), a second connecting sheet (220) and a third connecting sheet (230), the first connecting sheet (210) is laid on the end of the battery packaging shell and used for connecting the battery core (100), the third connecting sheet (230) is connected with the circuit protection module (300) and arranged in parallel with the first connecting sheet (210), and the second connecting sheet (220) is arranged obliquely, and both ends of the second connecting sheet (220) are connected with the first connecting sheet (210) and the third connecting sheet (230) respectively.

3. The battery packaging structure of claim 2, wherein, The tab (200) is integrally bent and formed.

4. The battery packaging structure according to claim 1, wherein The circuit protection module (300) is arranged parallel to the end surface of the battery packaging shell.

5. The battery packaging structure of claim 1, wherein, First supporting blocks (410) are arranged at the circuit protection module (300) and the tab.

6. The battery packaging structure of claim 5, wherein, The first supporting blocks (410) are formed by curing of epoxy resin.

7. The battery packaging structure of claim 6, wherein, The battery packaging shell comprises a top sealing edge (500) and side sealing edges (600), the side sealing edges (600) are located on both sides of the top sealing edge (500), both ends of the top sealing edge (500) are connected with the end portions of the side sealing edges (600) respectively, so as to package the battery core (100). The top sealing edge (500) comprises a second main body portion (510) and second extension portions (520) located at both ends of the second main body portion (510), and the second main body portion (510) is used for laying on the end of the battery core (100).

8. The battery packaging structure of claim 7, wherein, The side sealing edges (600) comprise a first main body portion (610) and a first extension portion (620) located at one end of the first main body portion (610), and the top end of the first extension portion (620) extends obliquely towards the other side sealing edge (600); The top end of the second extension portion (520) extends obliquely towards the first extension portion (620); and the second extension portion (520) is connected with the first extension portion (620), so as to form an accommodating cavity for supporting between the first extension portion (620), the second extension portion (520) and the battery core (100).

9. The battery packaging structure of claim 8, wherein, The accommodating cavity is filled with second supporting blocks.

10. The battery packaging structure of claim 9, wherein, The second supporting blocks are formed by curing of resin; and the first supporting blocks and the second supporting blocks are both integrally formed structural members.

11. A battery, characterized by A battery pack comprising a battery cell (100) and a battery pack structure as claimed in any one of claims 1 to 10, the battery cell (100) being enclosed in the battery pack housing.

12. An electrical device, characterized by A battery comprising the battery of claim 11.

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