Detachable battery structure

Abstract

The utility model belongs to the technical field of detachable batteries, and mainly relates to a detachable battery structure which comprises at least two battery cells which are connected in parallel through a protection plate, in the length direction of the battery cell, the battery cell is provided with a tab for connecting the battery cell and the protection plate in an extending manner, and the battery cell and the protection plate connected with the battery cell are both assembled in the rubber frame; in the length direction of the rubber frame, a top frame arm is arranged at the upper end of the rubber frame, a bottom frame arm is arranged at the lower end of the rubber frame, and buckles for detachably and fixedly connecting the rubber frame and the equipment body are symmetrically arranged on the two sides of the top frame arm and the bottom frame arm in the length direction; at least one groove is further formed in the bottom of the bottom frame arm, and the groove is used for detaching the detachable battery structure from the equipment body; according to the detachable battery structure designed above, the structural thickness of the battery is reduced, and later disassembly and replacement are facilitated, so that the design requirement of a user on the detachable battery is met.

Description

Technical Field

[0001] This utility model belongs to the field of removable battery technology, and mainly relates to a removable battery structure. Background Technology

[0002] With the widespread use of mobile devices, portable electronic products, and high-power-consuming devices, users have placed higher demands on battery capacity and power supply capabilities. Battery capacity has become a key indicator of device battery life, especially in areas such as smartphones, laptops, and industrial equipment, where users are increasingly valuing long-term use and efficient power supply performance.

[0003] However, to meet this demand, existing battery structures tend towards non-removable designs. While this design reduces the space occupied by mechanical structures and enhances device integrity, it also makes battery replacement or upgrades difficult. Once the battery life is exhausted, users have no choice but to replace the entire device, increasing operating costs and environmental burden. Furthermore, in non-removable battery designs, capacity is typically increased by adding more cells or using parallel designs. However, this approach neglects optimization of battery thickness, resulting in a significant increase in thickness as capacity increases. Especially in parallel battery structures, the stacking or splicing of multiple cells further increases the overall battery thickness, failing to meet the demands of modern devices, particularly tablets, for thinner and lighter designs.

[0004] Therefore, it is urgent to improve the existing battery structure to solve the defects of the aforementioned technologies. Utility Model Content

[0005] The purpose of this utility model is to provide a detachable battery structure to address the shortcomings of existing technologies and solve the problem of excessively thick cells caused by too many parallel cells in existing non-detachable batteries.

[0006] To achieve the above technical objectives, this application implements the following technical solution:

[0007] A detachable battery structure includes at least two cells connected in parallel via a protection board;

[0008] Along the length of the battery cell, the battery cell extends to provide tabs for connecting the battery cell to the protection board. The battery cell and the protection board connected to the battery cell are both assembled in a rubber frame.

[0009] Along the length of the frame, the upper end of the frame is provided with a top frame arm, and the lower end of the frame is provided with a bottom frame arm. Both sides of the top frame arm and the bottom frame arm are symmetrically provided with buckles for detachable and fixed connection between the frame and the equipment body.

[0010] The bottom of the bottom frame arm is further provided with at least one groove, which is used for disassembling the detachable battery structure from the equipment body.

[0011] The above technical solution has the following technical effects:

[0012] The application adopts a rubber frame structure to fix and assemble multiple parallel battery cells and a protection plate. Compared with a traditional metal frame or welding method, the rubber frame structure has the characteristics of being lighter, thinner and more compact. The rubber frame not only reduces the structural thickness of the battery, but also facilitates disassembly and replacement in the later stage, thereby meeting the design requirements of the detachable battery.

[0013] As a further improvement of the detachable battery structure, the top frame arm is provided with a first surface and a second surface for clamping the protection plate, and the first surface and the second surface are each provided with at least two clamping holes.

[0014] The protection plate is provided with a clamping protrusion that is clamped with the clamping hole.

[0015] As a further improvement of the detachable battery structure, the protection plate is provided with an output end for outputting the electrical energy of the parallel battery cells to the electrical equipment.

[0016] The first surface is provided with a first clamping hole on both sides of the output end, and the second surface is provided with a second clamping hole on both sides of the output end.

[0017] As a further improvement of the detachable battery structure, the width of the clamping protrusion is D1, and the value of D1 is in the range of 2.0mm-3.0mm; the width of the clamping hole is D2, and D1 and D2 satisfy: D2=D1+0.3.

[0018] As a further improvement of the detachable battery structure, along the width direction of the rubber frame, the left frame arm and the right frame arm of the rubber frame are each provided with at least two injection molding holes, and the diameter of the injection molding hole is D3, and D3 satisfies 1.5mm-4mm.

[0019] As a further improvement of the detachable battery structure, the tab is provided with a bending portion and a connecting portion, the bending portion is connected with the protection plate; along the thickness direction of the connecting portion, the two sides of the connecting portion are each attached with a protective rubber.

[0020] As a further improvement of the detachable battery structure, the surface of the bending portion is further provided with a foam structure.

[0021] As a further improvement of the detachable battery structure, along the thickness direction of the battery cell, the two sides of the battery cell are each provided with a PET layer.

[0022] As a further improvement to the detachable battery structure of this utility model, it also includes a shell structure, which surrounds an assembly cavity for assembling a rubber frame.

[0023] As a further improvement to the detachable battery structure of this utility model, both the left frame arm and the right frame arm are provided with at least two first protrusions, and the bottom frame arm is provided with at least one second protrusion.

[0024] Both the first and second protrusions face the battery cell. The thickness of the first protrusion ranges from 0.3mm to 0.5mm, and the thickness of the second protrusion ranges from 0.4mm to 1mm. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention. In the drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the adhesive frame in Embodiment 1 of this utility model;

[0027] Figure 2 This is a schematic diagram of the protective plate in Embodiment 1 of this utility model;

[0028] Figure 3 This is a schematic diagram of the battery cell structure in Embodiment 1 of this utility model;

[0029] Figure 4 This is a schematic diagram of the battery cell structure in Embodiment 3 of this utility model;

[0030] Figure 5 for Figure 4 A magnified view of a portion at point A;

[0031] Figure 6 This is a schematic diagram of the shell structure in Embodiment 4 of this utility model;

[0032] in:

[0033] 1-Protection board;

[0034] 11-Carrot;

[0035] 12-Output terminal;

[0036] 2-Battery cell;

[0037] 21-Ear;

[0038] 211-Bend;

[0039] 212 - Connecting part;

[0040] 3-glue frame;

[0041] 31-top frame arm;

[0042] 311-buckle;

[0043] 312-first surface;

[0044] 3121-buckle hole;

[0045] 3122-first buckle hole;

[0046] 313-second surface;

[0047] 3131-second buckle hole;

[0048] 32-bottom frame arm;

[0049] 321-groove;

[0050] 322-second boss;

[0051] 33-left frame arm;

[0052] 331-injection hole;

[0053] 332-first boss;

[0054] 34-right frame arm;

[0055] 4-protection glue;

[0056] 5-cotton structure;

[0057] 6-PET layer;

[0058] 7-outer shell structure;

[0059] 71-assembly cavity. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work, fall within the scope of protection of the present application. Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application.

[0061] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] Although this application discloses preferred embodiments as described above, it is not intended to limit the claims. Any person skilled in the art can make several possible changes and modifications without departing from the concept of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

[0063] The present invention will be further described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

[0064] Implementation Method 1

[0065] like Figures 1-3 As shown, to meet users' needs for replacing batteries in tablets and other electronic devices and to further reduce battery thickness, this application improves upon existing battery structures. Specifically, the battery structure of this application is a detachable design, comprising at least two cells 2 connected in parallel via a protection board 1. In practice, the number of cells 2 can be greater than two; in this case, the protection board 1 only needs to be augmented with additional interfaces for connecting the cells 2 in parallel. Currently, the common cell 2 structure employs a stacked parallel connection method. To enhance the capacity of the cells 2, the number of stacked cells 2 is continuously increasing, making battery thickness difficult to control. Although the unit capacity of lithium-ion batteries continues to improve in this field, this improvement aims to address the issue of non-removable battery thickness. While this alleviates the pressure on battery thickness, it does not fundamentally solve this technical challenge.

[0066] Furthermore, along the length direction (Y-axis direction) of the battery cell 2, the battery cell 2 extends to provide a tab 21 for connecting the battery cell 2 and the protection plate 1. The battery cell 2 and the protection plate 1 connected to the battery cell 2 are both assembled in the frame 3. Along the length direction (Y-axis direction) of the frame 3, the upper end of the frame 3 is provided with a top frame arm 31, and the lower end of the frame 3 is provided with a bottom frame arm 32. On both sides of the top frame arm 31 and the bottom frame arm 32 along the length direction (X-axis direction), there are symmetrical buckles 311 for detachably and fixedly connecting the frame 3 and the tablet computer body.

[0067] Through the above design, the structural design of the glue frame 3 not only ensures the stable connection of the battery cell 2 and the protection plate 1, but also enables the battery structure to be easily fixed and detached from the device body through the setting of the buckle 311. This design greatly improves the maintainability of the battery and the convenience of use of the user.

[0068] Further, the bottom of the bottom frame arm 32 is also provided with at least one groove 321, and the groove 321 is used to detach the detachable flat battery structure from the tablet computer body. Among them, the groove 321 at the bottom of the bottom frame arm 32 is designed to provide a convenient way for the disassembly of the battery, and the user can easily take out the battery from the device for replacement or maintenance. In specific practical applications, the number of grooves 321 can be set to two or more, and the thickness values of the grooves 321 can also be different, so that the user can realize the disassembly of the battery.

[0069] In actual application, the detachable battery structure of the present application can be widely applied to various portable electronic devices, such as tablet computers, smart phones, portable game consoles, etc. Because of its compact structure and small thickness, it is very suitable for the demand of modern devices for light and thin. At the same time, due to the detachability of the battery, the user can choose different capacity batteries for replacement according to his own needs, thereby prolonging the service life of the device, reducing the generation of electronic waste, and having good economic benefit and environmental protection significance.

[0070] Embodiment 2

[0071] As Figures 1-3 shown, different from embodiment 1 is: in order to further improve the structural stability of the battery of the present application, further, the detachable battery structure top frame arm 31 of the present application is provided with a first face 312 and a second face 313 for clamping the protection plate 1, and the first face 312 and the second face 313 are both provided with at least two clamping holes 3121;

[0072] The protection plate 1 is provided with a clamping protrusion 11 which is clamped with the clamping hole 3121. In the specific implementation process, the glue frame 3 belongs to a relatively soft material, and all the protection plates 1 made of metal material can be pushed into the clamping hole 3121 corresponding to the first face 312 and the second face 313 of the protection plate 1 by external force, so as to clamp the protection plate 1 between the first face 312 and the second face 313, thereby realizing more stable fixation in the battery structure. This design not only improves the assembly precision of the battery assembly, but also enables the user to operate more conveniently and quickly when disassembling and replacing the battery. In addition, the cooperation design of the clamping protrusion 11 and the clamping hole 3121 can also effectively prevent the displacement of the battery caused by vibration or impact during use, and ensure the stability and safety of the battery.

[0073] Further, the protection plate 1 is provided with an output end 12, which is used to output the electric energy of the parallel battery cells 2 to the power consuming device. This design makes the battery structure not only physically detachable, but also capable of flexible connection and disconnection in the circuit, providing more convenience for users. The output end 12 can be designed as a standard interface or other general interface, so as to be compatible with various power consuming devices.

[0074] Specifically, the first clamping hole 3122 and the second clamping hole 3131 are respectively arranged on both sides of the output end 12 of the protection plate 1. The first surface 312 is provided with the first clamping hole 3122 on both sides of the output end 12, and the second surface 313 is provided with the second clamping hole 3131 on both sides of the output end 12. The design of the first clamping hole 3122 and the second clamping hole 3131 makes the output end 12 of the protection plate 1 clamped between the first surface 312 and the second surface 313, further improving the reliability of the connection of the power grid structure of the application. In the specific implementation process, the protection plate 1 will also be provided with a clamping protrusion 11 near the single parallel battery cell 2, and the first surface 312 and the second surface 313 will also be provided with corresponding clamping holes 3121, thereby further improving the stability of the battery cell 2 connected to the protection plate 1.

[0075] Further, the width of the clamping protrusion 11 is D1, and the value range of D1 is 2.0mm-3.0mm; the width value of the clamping hole 3121 is D2, and D1 and D2 satisfy: D2=D1+0.3. In the specific implementation process, the value of D1 can be preferably any one of 2.0mm, 2.5mm and 3.0mm, and D2 is adaptively adjusted according to the relationship between D1 and D2. This design can ensure that the clamping protrusion 11 still has a certain space when clamped into the clamping hole 3121, so as to ensure that the clamping protrusion 11 and the clamping hole 3121 have good cooperation, avoid assembly difficulty caused by too tight, or instability of the battery structure caused by too loose. In addition, the cooperation design of the clamping protrusion 11 and the clamping hole 3121 can also effectively absorb and disperse the external force impact that the battery may be subjected to in the use process, further improving the durability and safety of the battery.

[0076] Other than the same as the first embodiment, the application will not be described here.

[0077] Embodiment 3

[0078] As Figures 1-5As shown, unlike Embodiment 1, in order to further improve the stability of the battery structure of the application, the glue frame 3 of the application is also provided with injection holes 331 for injecting glue into the internally assembled battery cell 2 and protection plate 1. Specifically, along the width direction of the glue frame 3, the left frame arm 33 and the right frame wall of the glue frame 3 are each provided with at least two injection holes 331, and the diameter of the injection hole 331 is D3, which satisfies 1.5mm-4mm. In the specific implementation process, D3 is any one of 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, and 4mm. (The diameter of the injection hole 331 can be adjusted according to the parameters of the battery structure, and the preferred parameters are as follows)

[0079] In the specific implementation process, the plastic material injected through the injection hole 331 can effectively fix the battery cell 2 and the protection plate 1, preventing them from shifting during battery operation. The design of the injection hole 331 not only improves the assembly accuracy of the battery components, but also absorbs part of the impact force when the battery is subjected to external force impact, thereby protecting the battery cell 2 from damage. In addition, the provision of the injection hole 331 can also reduce the air gap inside the battery, improve the heat dissipation performance of the battery, and help the battery maintain good temperature control during long-term operation.

[0080] Further, the tab 21 is provided with a bending portion 211 and a connecting portion 212, the bending portion 211 is connected with the protection plate 1; along the thickness direction of the connecting portion 212, the two sides of the connecting portion 212 are each coated with a protective glue 4; wherein the surface of the bending portion 211 is also provided with a foam structure 5. The design of the bending portion 211 allows the battery cell 2 to have a certain bending space when subjected to external force, thereby avoiding direct stress concentration and reducing the risk of damage to the battery cell 2. The protective glue 4 on both sides of the connecting portion 212 can prevent short circuit between the battery cell 2 and the protection plate 1, and the protective glue 4 also has certain insulation performance, thereby improving the safety of the battery. The provision of the foam structure 5 further enhances the anti-vibration capability of the tab 21, ensuring the stability of the battery during use.

[0081] Further, along the thickness direction of the battery cell 2, the two sides of the battery cell 2 are each provided with a PET layer 6. The addition of the PET layer 6 not only provides additional physical protection to prevent the battery cell 2 from deforming when subjected to external force, but also has certain insulation effect to avoid unnecessary electrical contact between the battery cells 2, thereby improving the safety and reliability of the battery. In addition, the battery structure of the application also includes a housing structure 7, the housing structure 7 is provided with an assembly cavity 71 for assembling the glue frame 3. The design of the housing structure 7 not only provides an additional protective layer for the battery, but also effectively fixes the glue frame 3, ensuring the stability of the battery during use. The design of the assembly cavity 71 makes the battery structure more compact, and facilitates the installation and disassembly of the battery, and the housing can also be used for pasting the trademark of the battery.

[0082] Other than the same as embodiment 1, this application will not be described.

[0083] Embodiment 4

[0084] As Figures 1-6 shown, different from embodiment 1: in order to further the integrity of the glue inside the glue injection hole 331, the left frame arm 33 and the right frame arm 34 of the glue frame 3 in this embodiment are each provided with at least two first bosses 332, and the bottom frame arm 32 is provided with at least one second boss 322; the first boss 332 and the second boss 322 are both towards the battery cell 2, the thickness value of the first boss 332 is in the range of 0.3mm-0.5mm, and the thickness value of the second boss 322 is in the range of 0.4mm-1mm. By setting the boss, the battery structure can fully soak the inside of the glue frame 3 when injecting glue, so as to ensure that the injection material can be uniformly filled into the gap between the battery cell 2 and the protection plate 1. At the same time, the design of the boss is also convenient for the positioning and fixing of the battery in the equipment. The above value range ensures that the boss can provide sufficient supporting force while not causing excessive impact on the thickness of the battery, thereby meeting the design requirements of the light and thin battery.

[0085] In addition, in this embodiment, the thickness of the left frame wall and the right frame arm 34 is greater than 0.8mm and less than 1.5mm; the thickness of the upper frame arm is greater than 0.60mm and less than 1.5mm; the thickness of the bottom frame wall is greater than 0.8mm and less than 2mm. By such design, the battery structure not only guarantees the strength, but also realizes the design goal of light and thin. The thickness of the left frame arm 33 and the right frame arm 34 is selected between 0.8mm and 1.5mm, which ensures sufficient mechanical strength to support the battery cell 2 and the protection plate 1, while not making the overall battery too bulky. The thickness of the upper frame arm is between 0.60mm and 1.5mm, which not only guarantees the stability of the structure, but also considers the portability of the overall battery. The thickness of the bottom frame arm 32 is between 0.8mm and 2mm, which makes the battery structure firmly fixed in the equipment, while not causing excessive impact on the thickness of the equipment.

[0086] Other than the same as embodiment 1, this application will not be described.

[0087] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A detachable battery structure, characterized by, The battery structure comprises at least two parallelly connected battery cells (2) and a protection plate (1). The battery cell (2) is provided with a tab (21) for connecting the battery cell (2) and the protection plate (1) along the length direction of the battery cell (2), and the battery cell (2) and the protection plate (1) are assembled in a rubber frame (3). The rubber frame (3) is provided with a top frame arm (31) at the upper end and a bottom frame arm (32) at the lower end along the length direction of the rubber frame (3), and the top frame arm (31) and the bottom frame arm (32) are symmetrically provided with buckles (311) for detachable fixed connection of the rubber frame and the equipment body at both sides along the length direction. The bottom frame arm (32) is further provided with at least one groove (321) at the bottom, and the groove (321) is used for detaching the detachable battery structure from the equipment body.

2. The detachable battery structure of claim 1, wherein, The top frame arm (31) is provided with a first surface (312) and a second surface (313) for clamping the protection plate (1), and the first surface (312) and the second surface (313) are each provided with at least two clamping holes (3121). The protection plate (1) is provided with a clamping protrusion (11) for clamping the clamping hole (3121).

3. A detachable battery structure according to claim 2, wherein The protection plate (1) is provided with an output end (12) for outputting the electric energy of the parallelly connected battery cell (2) to the power consumption equipment. The first surface (312) is provided with a first clamping hole (3122) at both sides of the output end (12), and the second surface (313) is provided with a second clamping hole (3131) at both sides of the output end (12).

4. The detachable battery structure of claim 2, wherein, The width of the clamping protrusion (11) is D1, and the value range of D1 is 2.0mm-3.0mm; the width of the clamping hole (3121) is D2, and D1 and D2 satisfy D2=D1+0.

3.

5. The detachable battery structure of claim 1, wherein, Along the width direction of the rubber frame (3), the left frame arm (33) and the right frame arm (34) of the rubber frame are each provided with at least two injection molding holes (331), and the diameter of the injection molding hole is D3, and D3 satisfies 2mm-5mm.

6. The detachable battery structure of claim 1, wherein, The tab (21) is provided with a bending portion (211) and a connecting portion (212), and the bending portion (211) is connected with the protection plate (1). Along the thickness direction of the connecting portion (212), the connecting portion (212) is pasted with a protective glue (4) at both sides.

7. A detachable battery structure according to claim 6, wherein The surface of the bending portion (211) is further provided with a foam structure (5).

8. The detachable battery structure of claim 6, wherein, Along the thickness direction of the battery cell (2), both sides of the battery cell are provided with a PET layer (6).

9. The detachable battery structure of claim 1, wherein, Further comprising a shell structure (7) surrounding an assembly cavity (71) for assembling the rubber frame (3).

10. The detachable battery structure of claim 5, wherein, The left frame arm (33) and the right frame arm (34) are each provided with at least two first protrusions (332), and the bottom frame arm (32) is provided with at least one second protrusion (322). The first boss (332) and the second boss (322) are both towards the battery cell, the thickness value of the first boss (332) ranges from 0.3mm to 0.5mm, and the thickness value of the second boss (322) ranges from 0.4mm to 1mm.

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