Battery fool-proof support, battery cell and battery

Abstract

The utility model discloses a kind of battery anti-stupidity support, electric core and battery, battery anti-stupidity support is assembled in battery shell, including frame body and the anti-stupidity part being set in the both sides of frame body;Frame body is provided with multiple assembly grooves, and assembly groove is used to assemble cylindrical battery;Anti-stupidity part is equipped with multiple anti-stupidity blocks, and anti-stupidity block is set in the both sides in the width direction of frame body;Any side in the width direction of frame body, it is provided with two groups of anti-stupidity blocks, and two groups of anti-stupidity blocks are located in the recess both sides of battery shell.The utility model solves the problem that traditional battery support lacks special anti-stupidity design, so that in actual assembly process, support is prone to reverse installation, misplacement assembly and other problems, reduce the short circuit, function failure risk caused by positive and negative pole orientation error of cylindrical battery.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically a battery anti-foolproof bracket, a battery cell, and a battery. Background Technology

[0002] With the rapid development of new energy technologies, cylindrical batteries are widely used in various electronic devices and energy storage devices due to their advantages such as high energy density and long cycle life. To achieve the orderly arrangement and fixation of cylindrical batteries and their reliable connection to external circuits, battery brackets are typically used for assembly.

[0003] However, existing battery bracket structures have many shortcomings. Traditional battery brackets are mostly simple frame structures with only basic battery housing slots. The assembly and positioning of the bracket and battery casing rely on symmetrical flanges or simple snap-fits, lacking dedicated foolproof designs. This leads to problems such as reverse installation and misalignment during actual assembly, resulting in incorrect orientation of the positive and negative terminals of cylindrical batteries, causing risks such as short circuits and functional failures, seriously affecting product qualification rates and safety. Furthermore, traditional brackets are often fixed to the battery casing using foam adhesive or simple snap-fit ​​connections, resulting in poor structural stability after assembly. They are prone to loosening and detachment during transportation and use, further reducing the structural reliability of the battery pack. Existing battery bracket structures cannot meet the high precision, high stability, and high efficiency requirements of actual production and use.

[0004] Therefore, there is an urgent need for a battery anti-mistake bracket and related cell and battery structure that has a foolproof function, is stably assembled, and is easy to connect, in order to solve the above-mentioned problems existing in the current technology. Utility Model Content

[0005] This utility model proposes a battery anti-mistake bracket, a battery cell, and a battery to solve the problems mentioned in the background art.

[0006] One of the objectives of this utility model is to provide a battery anti-mistake bracket, which is assembled on a battery casing and includes a frame and anti-mistake parts disposed on both sides of the frame. The frame is provided with multiple assembly slots for assembling cylindrical batteries.

[0007] The error prevention section is equipped with multiple error prevention blocks, which are located on both sides of the frame width direction;

[0008] Two sets of anti-fool blocks are installed on either side of the width of the frame, and the two sets of anti-fool blocks are located on both sides of the recess of the battery casing.

[0009] Furthermore, the outer contour of the foolproof block is rounded.

[0010] Furthermore, ventilation holes are provided at the top and bottom of the frame.

[0011] Furthermore, the frame is provided with an assembly surface for receiving the assembly slot. Assembly holes are provided on both sides of the assembly surface along its length. The assembly holes correspond to the through holes of the baffle. The baffle is bolted to the assembly holes through the through holes and fixed to the frame.

[0012] The second objective of this utility model is to provide a battery cell, including any of the above-mentioned battery anti-mistake brackets. The battery anti-mistake bracket has multiple rows of cylindrical batteries assembled inside its frame. The positive or negative terminal of the cylindrical battery is welded to a connecting component, and the connecting component connects the positive or negative terminal of the cylindrical battery to the pins of the PCB board.

[0013] Furthermore, the connection components include a first bus and a second bus.

[0014] The first busbar connects to the positive or negative terminal of the same row of cylindrical batteries via the first welded part.

[0015] The second busbar connects to the positive or negative terminals of two adjacent rows of cylindrical batteries via the second welding section.

[0016] A first connecting piece is provided on one side of the first busbar, and a second connecting piece is provided on one side of the second busbar. Both the first and second connecting pieces are used for soldering to the pins of the PCB board.

[0017] Furthermore, both the first and second welded parts have an H-shaped hollow structure.

[0018] The second objective of this utility model is to provide a battery comprising two cells as described above, a battery casing, and a PCB board. Both cells are assembled in the battery casing, and the connecting components of the cells are soldered to the pins of the PCB board.

[0019] Furthermore, the battery also includes a top plate, which is positioned on top of the PCB board.

[0020] The above technical solution produces the following technical effects:

[0021] 1) The two sets of anti-foolproof blocks on both sides of the frame of this utility model are adapted to the recess of the battery shell to form a forced anti-foolproof positioning structure. The bracket can only be assembled with the shell in the only correct direction, which avoids the problem of reverse installation and misaligned assembly caused by the lack of anti-foolproof design of traditional brackets, and reduces the risk of short circuit and functional failure caused by incorrect orientation of the positive and negative terminals of cylindrical batteries.

[0022] 2) The battery cells are based on a battery anti-foolproof bracket, with multiple rows of cylindrical batteries correspondingly assembled into the assembly slots. Due to the anti-foolproof and positioning functions of the bracket, no additional positioning tools are needed during the battery cell assembly process, enabling fast and accurate assembly. Furthermore, efficient heat dissipation is achieved through the heat dissipation holes of the bracket, preventing high-temperature damage to the battery tabs. Attached Figure Description

[0023] Figure 1 A three-dimensional schematic diagram of the assembly drawing of the frame and connecting components;

[0024] Figure 2 This is the front view of the frame;

[0025] Figure 3 One of the views of a cylindrical battery;

[0026] Figure 4 for Figure 3 A magnified view of a portion at point A;

[0027] Figure 5 Detailed diagram of the connecting components;

[0028] Figure 6 This is a cross-sectional view of the battery cell;

[0029] Figure 7 This is one of the front views of the battery;

[0030] Figure 8 This is the second front view of the battery;

[0031] Figure 9 A partial schematic diagram of the baffle;

[0032] In the picture:

[0033] 1 - Frame; 2 - Baffle; 3 - Cylindrical battery; 4 - Connecting assembly; 5 - PCB board; 6 - Top plate;

[0034] 11 – Anti-foolproof part; 12 – Assembly slot; 13 – Heat dissipation through hole; 14 – Assembly hole; 15 – Assembly surface; 21 – Through hole; 41 – First busbar; 42 – Second busbar;

[0035] 111 – Anti-foolproof block; 411 – First welding part; 412 – First connecting piece; 421 – Second welding part; 422 – Second connecting piece. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] It is known that existing battery bracket structures have some technical defects. For example, traditional battery brackets are mostly simple frame structures with only basic battery housing slots. The assembly and positioning of the bracket and battery casing rely on symmetrical flanges or simple clips, lacking a dedicated foolproof design. This leads to problems such as reverse installation and misalignment during actual assembly, resulting in incorrect orientation of the positive and negative terminals of the cylindrical battery, causing risks such as short circuits and functional failures, seriously affecting product qualification rate and safety.

[0038] Therefore, this application is motivated by the inventive motivation to improve existing battery holders. The following detailed explanation, based on specific embodiments, describes a battery anti-mistake holder, battery cell, and battery according to this application.

[0039] Example 1

[0040] like Figure 1-9 As shown, this embodiment provides a battery anti-misalignment bracket. Let the length direction of the bracket 1 be X, and the width direction be Y. The battery anti-misalignment bracket is assembled onto the battery casing and includes the bracket 1 and anti-misalignment parts 11 disposed on both sides of the bracket 1. Each anti-misalignment part 11 has multiple anti-misalignment blocks 111, the outer contour of which is rounded, and the anti-misalignment blocks 111 are disposed on both sides of the bracket 1 along the Y direction. The anti-misalignment blocks 111 are adapted to the recesses of the battery casing, constructing a forced positioning mechanism for assembly in a single direction. Traditional brackets, lacking anti-misalignment design in the width direction, are prone to left-right reversal and front-back misalignment, leading to reversed positive and negative polarity of the cylindrical battery, causing short circuits or functional failures. In this invention, the anti-misalignment blocks 111 can only match the structure of the corresponding position on the battery casing, i.e., the recessed structure adopted in this embodiment. If the assembly direction is incorrect, the anti-misalignment blocks 111 will physically interfere with the battery casing, directly preventing the bracket 1 from being installed, thereby avoiding reverse installation and misalignment problems.

[0041] The anti-fool block 111 adopts a rounded outer contour design. During the assembly process, the rounded corner structure can prevent the anti-fool block 111 from scratching or colliding with the inner wall and recessed edge of the battery casing, preventing scratches and deformation of the casing, and extending the service life of the bracket and casing. In addition, the rounded corner anti-fool block 111 can reduce assembly resistance, reduce assembly jamming, and improve the convenience of assembly.

[0042] Furthermore, the frame 1 is provided with multiple assembly slots 12, which are used to assemble cylindrical batteries 3.

[0043] Preferably, two sets of anti-misalignment blocks 111 are provided on either side of the width direction of the frame 1, and the two sets of anti-misalignment blocks 111 are located on both sides of the recess of the battery casing. The anti-misalignment blocks 111 on both sides of the width direction can correspond to the recesses on both sides of the battery casing respectively, ensuring that the frame 1 is centered in the battery casing and avoiding uneven force on the battery cells on both sides due to the offset of the frame 1.

[0044] Preferably, heat dissipation holes 13 are provided at both the top and bottom of the frame 1. Traditional brackets rely solely on the small gap between the battery and the bracket for natural heat dissipation, which easily leads to heat accumulation in areas with dense battery packs, resulting in low heat dissipation efficiency. In contrast, the heat dissipation holes 13 at the top and bottom of the frame 1 of this invention allow part of the heat generated by the cylindrical battery 3 to be dissipated directly to the outside through the top heat dissipation hole 13, while the other part is conducted downwards along the gaps between the batteries and discharged through the bottom heat dissipation hole 13, forming a two-way heat dissipation path to quickly dissipate heat and prevent heat from accumulating inside the frame 1.

[0045] Preferably, the frame 1 has an assembly surface 15 for receiving the assembly slot 12. Assembly holes 14 are provided on both sides of the assembly surface 15 along the X direction. The assembly holes 14 correspond to the through holes 21 of the baffle 2. The baffle 2 is bolted to the assembly holes 14 through the through holes 21 and fixed to the frame 1. The core function of the baffle 2 is to laterally limit the cylindrical battery 3 inside the frame 1. If the connection between the baffle 2 and the support 1 is loose, the battery is prone to lateral displacement within the assembly slot of the frame 1, leading to deformation of the battery tabs and poor contact of the connecting components. The bolted connection ensures that the baffle 2 is always tightly attached to both sides of the frame 1 along its length, forming reliable lateral protection. When the battery is subjected to external impact, the baffle 2 can transfer the impact force to the frame 1 through the bolts, and then the frame 1 distributes the impact force to the battery casing, preventing the impact force from concentrating on the battery and improving the overall impact resistance of the battery cell. In addition, the detachable and adjustable bolt connection greatly improves the flexibility of assembly and maintenance. During assembly, simply align the through hole 21 of the baffle 2 with the assembly hole 14 of the frame 1, and then fix the connection with screws, which increases the convenience of assembly.

[0046] Example 2

[0047] As shown in Figures 3-6, this embodiment provides a battery cell, including the battery anti-mistake bracket from Embodiment 1. Multiple rows of cylindrical batteries 3 are assembled within the bracket body 1. The positive or negative terminals of the cylindrical batteries 3 are soldered to a connecting assembly 4. The connecting assembly 4 connects the positive or negative terminals of the cylindrical batteries 3 to the pins of a PCB board 5. The connecting assembly 4 includes a first busbar 41 and a second busbar 42. The first busbar 41 connects to the positive or negative terminals of the same row of cylindrical batteries 3 via a first solder joint 411. The second busbar 42 connects to the positive or negative terminals of two adjacent rows of cylindrical batteries 3 via a second solder joint 421. A first connecting piece 412 extends from one side of the first busbar 41, and a second connecting piece 422 extends from one side of the second busbar 42. Both the first connecting piece 412 and the second connecting piece 422 are used for soldering to the pins of the PCB board 5, and both the first solder joint 411 and the second solder joint 421 have an H-shaped hollow structure.

[0048] The first busbar 41 can connect the positive or negative terminals of all cylindrical batteries 3 in the same row at once through the first welding part 411. The second busbar 42 can connect the positive and negative terminals of two adjacent rows of batteries simultaneously through the second welding part 421. Compared with the traditional welding one by one, the welding steps are reduced and the production efficiency is greatly improved.

[0049] The first busbar 41 and the second busbar 42 form an integrated conductive path with the battery and PCB board 5, eliminating the need for additional wires to reduce power loss and further improving the cell discharge efficiency.

[0050] The H-shaped hollow structure can quickly dissipate heat during welding, preventing heat from concentrating on the tabs and preventing the tabs from melting or oxidizing due to high temperatures, thus improving welding yield. At the same time, it avoids the impact of high temperatures on the electrolyte inside the battery, reducing the risk of battery bulging.

[0051] Example 3

[0052] like Figure 7-8 As shown, this embodiment provides a battery comprising two battery cells as provided in Embodiment 2, a battery casing, and a PCB board 5. Both battery cells are assembled within the battery casing, and the connecting assembly 4 of the battery cells is soldered to the pins of the PCB board 5. This embodiment also includes a top plate 6, which is disposed on top of the PCB board 5 and completely covers the top area of ​​the PCB board 5. This top plate prevents dust, metal debris, and other foreign objects from falling onto the surface of the PCB board 5, thus avoiding short circuits caused by foreign objects. When the battery casing is subjected to pressure from the top, the top plate 6 can directly withstand the pressure, preventing the pressure from being transmitted to the PCB board and causing it to bend or break, further protecting the structure of the PCB board 5 from direct impact.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery anti-foolproof bracket, assembled into a battery casing, characterized in that, Includes a frame and anti-foolproof parts disposed on both sides of the frame; The frame is provided with multiple assembly slots, which are used to assemble cylindrical batteries. The error-proof part is provided with a plurality of error-proof blocks, which are arranged on both sides in the width direction of the frame; Two sets of anti-fool blocks are provided on either side of the width direction of the frame, and the two sets of anti-fool blocks are located on both sides of the recess of the battery casing.

2. The battery anti-foolproof bracket according to claim 1, characterized in that, The outer contour of the anti-mistake block is rounded.

3. The battery anti-foolproof bracket according to claim 1, characterized in that, The top and bottom of the frame are provided with heat dissipation holes.

4. A battery anti-foolproof bracket according to claim 1, characterized in that, The frame is provided with an assembly surface for receiving an assembly slot. Assembly holes are provided on both sides of the assembly surface along its length. The assembly holes correspond to the through holes of the baffle. The baffle is bolted to the frame through the through holes and the assembly holes.

5. A battery cell, characterized in that, The battery anti-mistake bracket as described in any one of claims 1-4 is provided, wherein multiple rows of cylindrical batteries are assembled in the frame of the battery anti-mistake bracket, and the positive or negative terminal of the cylindrical battery is welded to a connecting component, wherein the connecting component connects the positive or negative terminal of the cylindrical battery to the pins of the PCB board.

6. A battery cell according to claim 5, characterized in that, The connection assembly includes a first busbar and a second busbar; The first busbar is connected to the positive or negative terminal of the cylindrical batteries in the same row via a first welding part; The second busbar connects to the positive or negative terminals of two adjacent rows of cylindrical batteries via a second welded portion.

7. A battery cell according to claim 6, characterized in that, A first connecting piece is provided on one side of the first busbar, and a second connecting piece is provided on one side of the second busbar; Both the first connecting piece and the second connecting piece are used for soldering to the pins of the PCB board.

8. A battery cell according to claim 6, characterized in that, Both the first welding part and the second welding part have an H-shaped hollow structure.

9. A battery, characterized in that, It includes two battery cells as described in any one of claims 5-8, a battery casing, and a PCB board, wherein both battery cells are assembled in the battery casing, and the connecting components of the battery cells are soldered to the pins of the PCB board.

10. A battery according to claim 9, characterized in that, It also includes a top plate, which is disposed on top of the PCB board.

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