Battery and electronic product

Abstract

The utility model relates to battery design technical field discloses a kind of battery and electronic product, battery includes main part, folding part, tab and protection plate, main part is suitable for embedding battery groove inside;Folding part is connected along first direction with main part, along second direction, the thickness of folding part is less than the thickness of main part, to form stepped, part main part is suitable for embedding battery groove inside, folding part is suitable for being set to the outside of battery groove, notch is formed on folding part;Protection plate is set in notch and is electrically connected with tab.The utility model further increases the capacity of battery on the basis of main part by setting folding part, to further increase the endurance of battery, protection plate is set on the notch of folding part, the occupied space of protection plate in battery groove is saved, to increase the size of main part, to improve the capacity of battery whole, improve the endurance of battery;Protection plate is electrically connected with the mainboard of electronic product, and simultaneously provides charge-discharge safety guarantee for battery.

Description

Technical Field

[0001] This utility model relates to the field of battery design technology, specifically to batteries and electronic products. Background Technology

[0002] In recent years, foldable screen phones have rapidly emerged in the smartphone market. Their unique foldable form factor allows for flexible expansion of screen size, meeting diverse user needs such as multitasking, large-screen office work, and entertainment.

[0003] The unique structure of foldable phones places extremely stringent requirements on the phone's battery, with battery capacity and battery life remaining core demands for technological development. In some related technologies, a battery slot is integrated into the phone's casing, housing the battery itself and its protective circuitry. However, such batteries generally have poor battery life and cannot meet the demands for extended battery life. Utility Model Content

[0004] In view of this, the present invention provides a battery and electronic product to solve the problem of poor battery life and inability to meet high battery life requirements.

[0005] In a first aspect, the present invention provides a battery having intersecting first and second directions, including a main body, a folded portion, a tab, and a protective plate; the folded portion is connected to the main body along the first direction, and along the second direction, the thickness of the folded portion is less than the thickness of the main body to form a step shape; the main body is adapted to be embedded in a battery slot, the folded portion is adapted to be disposed on the outside of the battery slot, and a notch is formed on the folded portion; the tab is located on the inner wall of the notch and extends outward; the protective plate is disposed in the notch and is electrically connected to the tab.

[0006] Beneficial effects: By incorporating a folding section, the battery capacity can be further increased based on the main body, thereby increasing the battery's range. Furthermore, placing the protection board in the folding section saves the space originally occupied by the protection board within the battery compartment, allowing for an increase in the size of the main body to improve the overall battery capacity and range. Additionally, placing the protection board at the notch in the folding section further reduces its footprint in the battery's thickness direction, enabling the folding section to be better positioned above the compartment wall, minimizing interference. The protection board provides electrical connection to the motherboard of the electronic product, while also ensuring safe charging and discharging of the battery.

[0007] In one optional embodiment, the battery further has a third direction, the third direction, the first direction, and the second direction intersect each other, the inner wall includes a first sidewall along the first direction and a first endwall along the third direction, and a plurality of tabs are provided, with at least one of the plurality of tabs respectively provided on the first sidewall and the first endwall.

[0008] Beneficial effects: The tabs are respectively set on the first side wall and the first end wall. The space occupied by the tabs on the plane is more dispersed, and they will not occupy a large amount of space in one direction. This reduces the space occupied by the tabs in the overall battery, thereby increasing the battery capacity and improving the battery range within a certain space, while also facilitating battery processing.

[0009] In one optional embodiment, the orthographic projection area of ​​the protective plate perpendicular to the second direction is S, satisfying S≥180mm. 2 ; and / or, the length of the notch is L, satisfying 30mm < L < 100mm; and / or, the width of the notch is W, satisfying 4mm < W < 10mm.

[0010] Beneficial effects: By limiting the area of ​​the protection board, sufficient space is ensured for electronic components to be placed on the protection board. At the same time, by limiting the length and width of the notch, the area occupied by the notch is prevented from being too large, thus affecting the space utilization and range of the battery, while ensuring the area of ​​the protection board is met.

[0011] In one alternative embodiment, the battery further includes an edge sealing structure disposed on the outer wall of the main body and the folded portion along the first direction and the third direction.

[0012] Beneficial effects: By setting up a sealing structure, electrolyte leakage from the inside of the battery to the outside is prevented, while external moisture is prevented from entering the battery, thus improving the battery's safety performance.

[0013] In one optional embodiment, the edge sealing structure includes an edge sealing reserved portion and an edge sealing closed portion. The edge sealing reserved portion is disposed on the outer wall of the folded portion along a first direction and a third direction, and the edge sealing closed portion is disposed on the outer wall of the main body along the first direction and a third direction. The edge sealing reserved portion and the edge sealing closed portion are connected at the part where the folded portion and the main body meet.

[0014] Beneficial effect: The edge sealing allowance is set on the outer wall of the folded part, so that the sealing direction of the edge sealing structure is on the thinner folded part, preventing the edge sealing structure from taking up too much space.

[0015] In one optional embodiment, along the second direction, the thickness of the main body is T1, and the thickness of the folded portion is T2, satisfying 0 mm. <T1-T2<1.6mm。

[0016] Secondly, this utility model also provides an electronic product, including the aforementioned battery.

[0017] In one alternative embodiment, the electronic product further includes a housing with a battery slot, the main body being embedded in the battery slot, and the folding portion and the protective plate being disposed on the outside of the battery slot.

[0018] In one alternative embodiment, along the second direction, the thickness of the main body is T1, and the thickness of the electronic product is T, satisfying 0.3≤T1 / T≤0.5.

[0019] Beneficial effects: By limiting the thickness of the main body, the capacity space of the battery can be guaranteed while avoiding the problem of the main body being too thick and occupying space inside the electronic product, thus affecting the realization of other functions of the electronic product.

[0020] In one alternative embodiment, along the second direction, the thickness of the folded portion is T2, and the thickness of the electronic product is T, satisfying 0.1≤T2 / T≤0.3.

[0021] Beneficial effects: By limiting the thickness of the folding part, the capacity space of the battery can be guaranteed while avoiding the folding part from taking up too much space inside the electronic product and affecting the realization of other functions of the electronic product. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a top view of the battery structure along the second direction according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of point A;

[0025] Figure 3 This is a schematic diagram of the structure of a battery without a protection board according to an embodiment of the present invention;

[0026] Figure 4 for Figure 3 View from direction B;

[0027] Figure 5 This is a schematic diagram of the main body and folding part of an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Main body; 11. Fourth side wall; 12. Fifth side wall; 13. Fourth end wall; 14. Fifth end wall; 20. Folding part; 21. Notch; 22. First side wall; 23. First end wall; 24. Second side wall; 25. Third side wall; 26. Second end wall; 27. Third end wall; 30. Electrode; 40. Protective plate; 50. Edge sealing structure; 51. Edge sealing reserved part; 52. Edge sealing closed part; X, First direction; Y, Third direction; Z, Second direction. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0032] According to an embodiment of the present invention, in a first aspect, a battery is provided having intersecting first direction X and second direction Z, including a main body 10, a folded portion 20, a tab 30, and a protective plate 40. The folded portion 20 is connected to the main body 10 along the first direction X, and along the second direction Z, the thickness of the folded portion 20 is less than the thickness of the main body 10 to form a step shape. The main body 10 is adapted to be embedded in a battery slot, and the folded portion 20 is adapted to be disposed on the outside of the battery slot. A notch 21 is formed on the folded portion 20. The tab 30 is located on the inner wall of the notch 21 and extends outward. The protective plate 40 is disposed in the notch 21 and is electrically connected to the tab 30.

[0033] The battery of this embodiment, by providing the folding part 20, further increases the battery capacity based on the main body 10, thereby increasing the battery's range. The protection plate 40 is provided on the notch 21 of the folding part 20, saving the space occupied by the protection plate 40 in the battery slot, thereby increasing the size of the main body 10, thereby increasing the overall battery capacity and improving the battery's range. The protection plate 40 is electrically connected to the motherboard of the electronic product, and at the same time provides charging and discharging safety protection for the battery.

[0034] It should be noted that in the relevant technology, the mobile phone casing is provided with a battery slot, and the main body 10 of the battery and the protection board 40 are both located in the battery slot. The protection board 40 occupies part of the space in the battery slot, and the occupation of this space restricts the size of the main body 10, so the battery's battery life is poor.

[0035] Therefore, in this embodiment, in order to improve the battery's endurance, the protection plate 40 is removed from the battery compartment, and the space originally occupied by the protection plate 40 is provided to the main body 10. The main body 10 is enlarged as a whole, so that the entire battery compartment is embedded in the main body 10, thereby increasing the available space of the main body 10 and improving the overall capacity of the battery. A folding part 20 is connected to one side of the main body 10. The folding part 20 can be placed above the wall of the battery compartment, and the protection plate 40 is set at the notch 21 of the folding part 20. This can further reduce the space occupied by the protection plate in the battery thickness direction and reduce the interference space of the folding part placed above the wall of the battery compartment. This adapts to the thickness requirements of ultra-thin devices (such as ultra-thin foldable screen phones), ensuring the safety of battery charging and discharging while further improving the overall capacity of the battery and increasing the battery's endurance.

[0036] It should be noted that, as Figure 4 As shown, along the second direction, one side of the main body 10 and the folding part 20 are parallel, and a step difference is formed on the other side. The height of the step difference corresponds to the depth of the battery slot. The part of the main body 10 that protrudes relative to the folding part 20 is embedded in the battery slot.

[0037] In one embodiment, such as Figure 3 As shown, the battery also has a third direction Y, which intersects with the first direction X and the second direction Z. The inner wall includes a first sidewall 22 along the first direction X and a first endwall 23 along the third direction Y. Two tabs 30 are provided, one on the first sidewall 22 and the other on the first endwall 23. With the two tabs 30 respectively positioned on the first sidewall 22 and the other on the first endwall 23, the space occupied by the tabs 30 on the plane is more dispersed, avoiding a large amount of space occupied in one direction. This reduces the space occupied by the tabs 30 in the overall battery, thereby increasing the battery capacity and improving the battery's range within a certain space, while also facilitating battery manufacturing.

[0038] Specifically, the first direction X, the third direction Y, and the second direction Z are set perpendicular to each other, that is, the two tabs 30 are set at 90°, which minimizes the space occupied by the tabs 30 in the overall battery.

[0039] Specifically, in this embodiment, please refer to Figure 5The folding portion 20 has a first sidewall 22, a second sidewall 24 and a third sidewall 25 along the first direction X, and the main body portion 10 has a fourth sidewall 11 and a fifth sidewall 12 along the first direction X. The third sidewall 25 of the folding portion 20 is fitted and connected to the fourth sidewall 11 of the main body portion 10, and an electrical connection is achieved.

[0040] It should be noted that in the relevant technology, the two tabs 30 are arranged side by side. However, arranging the two tabs 30 side by side will cause the tabs 30 to extend in the same direction on the same plane, and the two tabs 30 will occupy a large lateral or longitudinal width, which is not conducive to a compact spatial layout within the limited battery space.

[0041] However, in this embodiment, the two tabs 30 are placed at a vertical angle, and the two tabs 30 occupy the horizontal and vertical widths of the notch 21 respectively, thereby making fuller use of the three-dimensional space of the notch 21 and occupying relatively less space in the length and width directions. Therefore, under a certain battery space requirement, the tabs 30 of the battery in this embodiment occupy less space, thereby providing more space for the main body 10 and the folding part 20, and thus improving the battery's range.

[0042] To further explain, the two tabs 30 are set at a vertical angle, which makes it easier to fold and weld the tabs 30 during battery assembly. In contrast, if the two tabs 30 are set side by side, the tabs 30 need to be precisely positioned and connected. Due to the limited space and the small distance between the tabs 30, it is very difficult to operate, and the tabs 30 are prone to bending, deformation or inaccurate positioning.

[0043] It should be noted that in other alternative embodiments, multiple electrode tabs 30 may be provided, such as three or four, with at least one electrode tab 30 provided on the first side wall 22 and the first end wall 23 respectively.

[0044] In one embodiment, such as Figure 1 As shown, the orthographic projection area of ​​the protective plate 40 perpendicular to the second direction Z is S, which satisfies S≥180mm. 2 The length of the notch 21 along the third direction Y is L, and the width of the notch 21 along the first direction X is W, satisfying 30mm < L < 100mm and 4mm < W < 10mm.

[0045] It should be noted that the protection board 40 is equipped with multiple electronic devices to monitor and control the battery.

[0046] It should be noted that when the area S of the protective plate 40 is less than 180 mm² 2If the area of ​​the protection board 40 is too small, there will not be enough space for electronic components, or the spacing between adjacent electronic components will be too small, which may cause short circuits and poor heat dissipation.

[0047] It should be further explained that, based on the area S of the protection board 40, the length L and width W of the notch 21 can be reasonably selected within a limited range; furthermore, by limiting the upper limit of the length L and width W, the maximum area of ​​the notch 21 is limited, preventing the notch 21 from being too large and occupying too much space, which would reduce the battery's endurance.

[0048] It is worth noting that by limiting the area of ​​the protection board 40, sufficient space is ensured for the electronic components on the protection board 40. At the same time, by limiting the length and width of the notch 21, the area occupied by the notch 21 is prevented from being too large, thus affecting the space utilization and range of the battery, while ensuring the area of ​​the protection board 40 is met.

[0049] In one embodiment, such as Figure 1 and Figure 2 As shown, the battery also includes a sealing structure 50, which is disposed on the outer wall of the main body 10 and the folded part 20 along the first direction X and the third direction Y.

[0050] It should be noted that, Figure 1 and Figure 2 The diagram shown is a top view of the battery structure along the second direction Z. The outer walls of the main body 10 and the folded part 20 along the first direction X and the third direction Y are also the peripheral surfaces of the battery surrounding the second direction Z.

[0051] Furthermore, the edge sealing structure 50 includes an edge sealing reserved portion 51 and an edge sealing closed portion 52. The edge sealing reserved portion 51 is disposed on the outer wall of the folded portion 20 along the first direction X and the third direction Y. The edge sealing closed portion 52 is disposed on the outer wall of the main body portion 10 along the first direction X and the third direction Y. The edge sealing reserved portion 51 and the edge sealing closed portion 52 located at the junction of the folded portion 20 and the main body portion 10 are connected.

[0052] It should be noted that the sealed edge portion 52 is the side sealant that has already been sealed, while the reserved edge portion 51 is the side sealant that will be sealed after the protection board 40 is installed, thus completing the overall sealing of the battery.

[0053] It is further noted that the position where the edge-sealing reserved portion 51 is located is the sealing position of the edge-sealing structure 50. To ensure smooth sealing after the protection plate 40 is installed, a certain space needs to be reserved at the sealing position. However, if the edge-sealing reserved portion 51 is provided on the main body portion 10, a larger reserved space is required due to the relatively large thickness of the main body portion 10. In order to ensure the sealing effect and structural strength, after the protection plate 40 is installed, the edge-sealing reserved portion 51 needs to fill all the remaining space, which will occupy more space. Therefore, in this embodiment, the edge-sealing reserved portion 51 is provided on the thinner folded portion 20, so that the sealing position of the edge-sealing structure 50 is arranged on the side of the folded portion 20, thereby reducing the space occupation of the edge-sealing reserved portion 51.

[0054] Specifically, please refer to Figure 5 , the folded portion 20 is formed with a first side wall 22, a second side wall 24 and a third side wall 25 along the first direction X, the main body portion 10 is formed with a fourth side wall 11 and a fifth side wall 12 along the first direction X, the third side wall 25 of the folded portion 20 is bonded and connected to the fourth side wall 11 of the main body portion 10, and electrical connection is achieved; the folded portion 20 is formed with a first end wall 23, a second end wall 26 and a third end wall 27 along the third direction Y, and the main body portion 10 is formed with a fourth end wall 13 and a fifth end wall 14 along the third direction Y.

[0055] Further, the main body portion 10 is connected to the folded portion 20, the edge-sealing reserved portion 51 extends sequentially from the second end wall 26 to the first side wall 22, the first end wall 23, the second side wall 24, and up to the third end wall 27, the sealed edge-completed portion 52 extends sequentially from the fourth end wall 13 to the fifth side wall 12, and up to the fifth end wall 14, two ends of the edge-sealing reserved portion 51 are respectively connected to two ends of the sealed edge-completed portion 52 to form the edge-sealing structure 50.

[0056] It is worth noting that the arrangement of the edge-sealing structure 50 prevents electrolyte from leaking out from the inside of the battery, and simultaneously prevents external water vapor from entering the battery, which improves the safety performance of the battery; the edge-sealing reserved portion 51 is provided on the outer wall of the folded portion 20, so that the sealing direction of the edge-sealing structure 50 is on the folded portion 20 with a smaller thickness, which prevents the sealing of the edge-sealing structure 50 from occupying excessive space.

[0057] In one embodiment, as shown in Figure 4 , along the second direction Z, the thickness of the main body portion 10 is T1, the thickness of the folded portion 20 is T2, which satisfies 0mm < T1-T2 < 1.6mm.

[0058] Further, the thickness of the main body portion 10 satisfies 1mm < T1 < 2mm, and the thickness of the folded portion 20 satisfies 0.4mm < T2 < 1mm.

[0059] Preferably, T1-T2 > 0.5mm is satisfied.

[0060] Specifically, the thickness T1 of the main body 10 is 1.5 mm, and the thickness T2 of the folded part 20 is 0.7 mm.

[0061] Of course, in other alternative embodiments, the thickness T1 of the main body 10 and the thickness T2 of the stacked portion can be adjusted according to the actual situation.

[0062] Secondly, this utility model also provides an electronic product, including the aforementioned battery.

[0063] Specifically, in this embodiment, the electronic product is a foldable phone.

[0064] The electronic product using this embodiment includes the battery described above and has the same effect as the battery, so it will not be described again here.

[0065] In one embodiment, the electronic product further includes a housing with a battery slot, the main body 10 being embedded in the battery slot, and the folding portion 20 and the protective plate 40 being disposed on the outside of the battery slot.

[0066] In one embodiment, such as Figure 4 As shown, along the second direction Z, the thickness of the main body 10 is T1, and the thickness of the electronic product is T, satisfying 0.3≤T1 / T≤0.5.

[0067] It should be noted that when T1 / T < 0.3, the thickness of the main body 10 is too thin, resulting in a small overall battery capacity and poor battery life; when T1 / T > 0.5, the thickness of the main body 10 is too thick. Although the overall battery capacity is guaranteed, there is not enough space for other electronic functional structures to be installed within the space of a certain electronic product.

[0068] It is worth noting that by limiting the thickness of the main body 10, the capacity space of the battery is guaranteed, while avoiding the fact that the thickness of the main body 10 is too thick, which would occupy the space inside the electronic product and affect the realization of other functions of the electronic product.

[0069] In one embodiment, such as Figure 4 As shown, along the second direction Z, the thickness of the folded part 20 is T2, and the thickness of the electronic product is T, satisfying 0.1≤T2 / T≤0.3.

[0070] It should be noted that when T1 / T < 0.3, the thickness of the folding part 20 is too thin, resulting in a small overall battery capacity and poor battery life; when T1 / T > 0.5, the thickness of the folding part 20 is too thick. Although the overall battery capacity is guaranteed, there is not enough space for other electronic functional structures to be installed within the space of a certain electronic product.

[0071] It is worth noting that by limiting the thickness of the folding part 20, the capacity space of the battery is guaranteed, while avoiding the folding part 20 being too thick and thus occupying space inside the electronic product, which would affect the realization of other functions of the electronic product.

[0072] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A battery having intersecting first direction (X) and second direction (Z), characterized in that, include: Main body (10); A folding portion (20) is connected to the main body portion (10) along the first direction (X) and along the second direction (Z). The thickness of the folding portion (20) is less than the thickness of the main body portion (10) to form a step shape. The main body portion (10) is adapted to be embedded in the battery slot. The folding portion is adapted to be disposed on the outside of the battery slot. A notch (21) is formed on the folding portion (20). A tab (30) is located on the inner wall of the notch (21) and extends outward; A protective plate (40) is disposed in the notch (21) and electrically connected to the tab (30).

2. The battery according to claim 1, characterized in that, The battery also has a third direction (Y), the first direction (X), the third direction (Y) and the second direction (Z) intersect each other, the inner wall includes a first side wall (22) along the first direction (X) and a first end wall (23) along the third direction (Y), and a plurality of tabs (30) are provided, at least one of the plurality of tabs (30) is provided on the first side wall (22) and the first end wall (23).

3. The battery according to claim 1, characterized in that, The orthographic projection area of ​​the protective plate (40) perpendicular to the second direction (Z) is S, which satisfies S≥180mm. 2 ; And / or, the length of the notch (21) along the third direction (Y) is L, satisfying 30mm < L < 100mm; And / or, the width of the notch (21) along the first direction (X) is W, satisfying 4mm < W < 10mm.

4. The battery according to any one of claims 1-3, characterized in that, The battery also includes an edge sealing structure (50), which is disposed on the outer wall of the main body (10) and the folded portion (20) along the first direction (X) and the third direction (Y).

5. The battery according to claim 4, characterized in that, The edge sealing structure (50) includes an edge sealing reserved portion (51) and an edge sealing closed portion (52). The edge sealing reserved portion (51) is disposed on the outer wall of the folded portion (20) along a first direction (X) and a third direction (Y). The edge sealing closed portion (52) is disposed on the outer wall of the main body portion (10) along a first direction (X) and a third direction (Y). The edge sealing reserved portion (51) and the edge sealing closed portion (52) located at the junction of the folded portion (20) and the main body portion (10) are connected.

6. The battery according to claim 5, characterized in that, Along the second direction (Z), the thickness of the main body (10) is T1, and the thickness of the folded portion (20) is T2, satisfying 0 mm. <T1-T2<1.6mm。 7. An electronic product, characterized in that, Includes the battery as described in any one of claims 1 to 6.

8. The electronic product according to claim 7, characterized in that, The electronic product also includes a housing with a battery slot, the main body (10) being embedded in the battery slot, and the folding part (20) and the protective plate (40) being disposed on the outside of the battery slot.

9. The electronic product according to claim 7, characterized in that, Along the second direction (Z), the thickness of the main body (10) is T1, and the thickness of the electronic product is T, satisfying 0.3≤T1 / T≤0.

5.

10. The electronic product according to claim 7, characterized in that, Along the second direction (Z), the thickness of the fold (20) is T2, and the thickness of the electronic product is T, satisfying 0.1≤T2 / T≤0.3.

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