A soft-pack battery pack and electronic device

Abstract

This utility model relates to a pouch battery pack and electronic device. The pouch battery pack includes an upper shell, a lower shell, a cell assembly, a tab adapter plate, and a power management board. The upper shell and lower shell are connected to form an accommodating space. The cell assembly and the tab adapter plate are disposed within the accommodating space, and the power management board is disposed on the upper shell. The tab adapter plate includes several rigid metal sheets. The upper shell has several guide grooves corresponding to the rigid metal sheets. The power management board has several connecting holes corresponding to the rigid metal sheets. Conductive sheets pass through the corresponding guide grooves and connecting holes from bottom to top to connect the tab adapter plate and the power management board. This utility model has a reasonable structure, enabling integrated connection of the pouch battery pack, reducing assembly and maintenance difficulty, and improving structural consistency and stability.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and more specifically, to a soft-pack battery pack and an electronic device. Background Technology

[0002] With the widespread use of pouch batteries in portable electronic devices, their safety and lifespan have become core factors of concern for customers. Currently, in common pouch battery pack designs, signal acquisition between the power management board and the cell tab adapter board typically uses flexible ribbon cables. This method makes it difficult to achieve integration of the battery pack's internal structure, increasing structural complexity. Furthermore, ribbon cable connections place higher demands on connectors, making it difficult to guarantee connection reliability and consistency. Utility Model Content

[0003] The purpose of this invention is to provide a soft-pack battery pack and electronic device with a reasonable structure that enables integrated connection of the soft-pack battery pack, reduces the difficulty of assembly and maintenance, and improves the consistency and stability of the structure.

[0004] A soft-pack battery pack includes an upper shell, a lower shell, a cell assembly, a tab adapter plate, and a power management board. The upper shell and the lower shell are connected to form an accommodating space. The cell assembly and the tab adapter plate are disposed within the accommodating space, and the power management board is disposed on the upper shell. The tab adapter plate includes a plurality of rigid metal sheets. The upper shell has a plurality of guide grooves corresponding to the rigid metal sheets. The power management board has a plurality of connection holes corresponding to the rigid metal sheets. Conductive sheets pass through the corresponding guide grooves and connection holes from bottom to top to connect the tab adapter plate and the power management board.

[0005] In the above technical solution, a rigid metal sheet, in conjunction with guide grooves and connecting holes, forms an integrated direct-connection structure for the electrode adapter plate, upper housing, and power management board. This effectively simplifies the internal layout of the battery pack, improves assembly efficiency, and makes the structure more stable. Guided by the guide grooves, the metal sheet forms a stable vertical support and simultaneously achieves the dual functions of current transmission and mechanical fixation. This ensures battery pack performance while making the structure more compact, achieving a simultaneous improvement in production yield and safety.

[0006] Furthermore, one of the electrode adapter board and the power management board is provided with a communication female connector, and the other is provided with a communication pin connector. The upper housing is provided with a glue groove, and the communication pin connector passes through the glue groove and is electrically connected to the communication female connector.

[0007] In the above technical solution, the communication pins pass through the glue groove and are plugged into the female connector, which enables communication between the tab adapter board and the power management board. Furthermore, the pins and the rigid metal sheet are plugged in and have the same direction, which simplifies the operation and improves the assembly efficiency.

[0008] Furthermore, the rigid metal sheet includes at least one conductive sheet for electrical connection and at least one positioning sheet for positioning.

[0009] In the above technical solution, the conductive sheet enables current transmission, while the positioning sheet is embedded in the guide groove and connection hole to provide rigid positioning, thereby improving the stability of the structure while ensuring the conductivity of the battery.

[0010] Furthermore, the upper housing is provided with a plurality of first buckles, and the power management board is provided with a plurality of first buckle holes, and the upper housing is engaged with the power management board through the first buckles.

[0011] In the above technical solution, the cooperation between the first buckle and the first buckle hole forms a quick-locking structure between the upper shell and the power management board, which can replace the traditional screw fixing, eliminate the risk of screw loosening, simplify the assembly process and improve the safety of the structure.

[0012] Furthermore, the upper housing is provided with at least one positioning post, and the power management board is provided with at least one positioning hole, with the positioning post passing through the corresponding positioning hole.

[0013] In the above technical solution, the positioning post and positioning hole cooperate to form a limiting structure, which is beneficial to correct the position of the power management board before the buckle is locked, ensuring that the metal sheet and the connecting hole are accurately aligned and reducing the assembly difficulty.

[0014] Furthermore, the upper housing is provided with a second buckle, and the upper housing is engaged with the lower housing through the second buckle.

[0015] In the above technical solution, the upper housing is connected to the lower housing through a second snap-fit, forming a screwless connection structure, which can eliminate the risk of screw loosening, simplify the assembly process, and improve the safety of the structure.

[0016] Furthermore, the battery cell assembly is provided with buffers on its periphery and bottom.

[0017] In the above technical solution, the buffer component covers the periphery and bottom of the battery cell assembly to form a buffer structure, which can effectively protect the battery cell assembly and extend its service life.

[0018] Furthermore, an insulating sheet is provided between the electrode adapter plate and the upper housing.

[0019] In the above technical solution, the insulating sheet can isolate the electrode adapter plate from the upper shell, eliminate the risk of short circuit, and improve the safety performance of the battery pack.

[0020] Furthermore, the power management board is provided with a temperature sensing harness, which passes through the upper housing and extends to the battery cell assembly.

[0021] In the above technical solution, the temperature sensing harness extends directly through the housing to the battery cell, enabling accurate temperature monitoring and providing support for overheat protection.

[0022] An electronic device comprising the aforementioned pouch battery pack.

[0023] Compared with existing technologies, the advantages of this invention are as follows: By using a rigid metal sheet in conjunction with guide grooves and connecting holes, an integrated direct-connection structure is formed for the electrode adapter plate, upper shell, and power management board. This effectively simplifies the internal layout of the battery pack, improves assembly efficiency, and makes the structure more stable. Guided by the guide grooves, the metal sheet forms a stable vertical support and simultaneously achieves the dual functions of current transmission and mechanical fixation. This ensures battery pack performance while making the structure more compact, achieving a simultaneous improvement in production yield and safety. Attached Figure Description

[0024] Figure 1 This is an exploded view of the soft-pack battery pack according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the electrode adapter plate according to an embodiment of the present utility model.

[0026] Figure 3 This is a schematic diagram of the upper shell structure according to an embodiment of the present utility model.

[0027] Figure 4 This is a schematic diagram of the power management board according to an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the upper and lower shells of an embodiment of the present utility model.

[0029] Figure 6 This is a schematic diagram of the battery cell assembly and electrode adapter plate according to an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] Upper housing 1, guide groove 11, glue groove 12, first buckle 13, positioning post 14, second buckle 15, lower housing 2, battery cell assembly 3, buffer 31, electrode adapter plate 4, rigid metal sheet 41, conductive sheet 411, positioning sheet 412, communication header 42, power management board 5, connection hole 51, communication pin header 52, first buckle hole 53, positioning hole 54, temperature sensing wire harness 55, insulating sheet 6. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] Please refer to Figures 1 to 6 In a preferred embodiment, the soft-pack battery pack of this utility model mainly includes an upper shell 1, a lower shell 2, a cell assembly 3, a tab adapter plate 4, and a power management board 5. The upper shell 1 and the lower shell 2 are connected to form an accommodating space. The cell assembly 3 and the tab adapter plate 4 are disposed within the accommodating space, and the power management board 5 is disposed on the upper shell 1. The tab adapter plate 4 includes several rigid metal sheets 41. The upper shell 1 has several guide grooves 11 corresponding to the rigid metal sheets 41. The power management board 5 has several connecting holes 51 corresponding to the rigid metal sheets 41. The conductive sheets 411 pass through the corresponding guide grooves 11 and connecting holes 51 from bottom to top to connect the tab adapter plate 4 and the power management board 5.

[0035] For example, the battery cell assembly 3 includes multiple battery cell units arranged side by side. The battery cell assembly 3 is generally rectangular. The electrode adapter plate 4 is located at the upper end of the battery cell assembly 3 and is connected to the electrode cells of the battery cell assembly 3. The upper housing 1 and the lower housing 2 are respectively fitted onto the upper and lower sides of the battery cell assembly 3. The connection between the upper housing 1 and the lower housing 2 can form an accommodating space that matches the contour of the battery cell assembly 3. The electrode adapter plate 4 is located at the end of the battery cell assembly 3 near the upper housing 1 and is housed in the accommodating space together with the battery cell assembly 3. The upper housing 1 has a plate body. When assembled, the electrode adapter plate 4 and the power management board 5 are located on both sides of the plate body. The rigid metal sheet 41 can be made of existing conductive metals, such as copper or aluminum. One end of the sheet is fixed to the electrode adapter plate 4, and the other end extends along the height direction of the battery pack. In this embodiment, there are three rigid metal sheets 41, and three guide grooves 11 and three connecting holes 51 are set accordingly. The outlines of the guide grooves 11 and the connecting holes 51 match the rigid metal sheets 41. The rigid metal sheets 41 pass through the guide grooves 11 and the connecting holes 51 from bottom to top, thereby realizing the connection between the tab adapter plate 4 and the power management board 5.

[0036] As can be seen from the above technical solution, by cooperating with the rigid metal sheet 41, guide groove 11, and connecting hole 51, an integrated direct connection structure is formed of the electrode adapter plate 4, upper shell 1, and power management board 5. This effectively simplifies the internal layout of the battery pack, improves assembly efficiency, and makes the structure more stable. Under the guidance of the guide groove 11, the metal sheet forms a stable vertical support and can simultaneously achieve the dual functions of current transmission and mechanical fixation. While ensuring the performance of the battery pack, the structure is more compact, achieving a simultaneous improvement in production yield and safety.

[0037] One of the tab adapter plate 4 and the power management board 5 is provided with a communication header 42, and the other is provided with a communication pin 52. The upper housing 1 is provided with a glue groove 12, through which the communication pin 52 passes and is electrically connected to the communication header 42. In this embodiment, the communication header 42 is located on the tab adapter plate 4, and the communication pin 52 is located on the power management board 5. The communication pin 52 can pass through the glue groove 12 and be inserted into the communication header 42, thereby realizing communication between the tab adapter plate 4 and the power management board 5. The communication pin 52 extends along the height direction of the battery pack, and its extension direction is consistent with that of the rigid metal sheet 41. During assembly, by moving the power management board 5 along the height direction, the communication pin 52 and the rigid metal sheet 41 can be inserted into the corresponding positions simultaneously, effectively simplifying the operation and improving assembly efficiency.

[0038] The rigid metal sheet 41 includes at least one conductive sheet 411 for electrical connection and at least one positioning sheet 412 for positioning. In this embodiment, there are two conductive sheets 411, which are electrically connected to the positive and negative electrodes of the cell assembly 3, respectively. When the conductive sheet 411 is inserted into the corresponding connection hole 51 of the power management board 5, it is electrically connected to the power management board 5. There is one positioning sheet 412, which is not electrically connected to either the tab adapter plate 4 or the power management board 5. After being inserted into the connection hole 51, it serves a positioning function. The conductive sheet 411 enables current transmission, while the positioning sheet 412 is embedded in the guide groove 11 and the connection hole 51 to provide rigid restraint, thereby improving the structural stability while ensuring the battery's conductivity.

[0039] The upper housing 1 is provided with a plurality of first snap-fits 13, and the power management board 5 is provided with a plurality of first snap-fit ​​holes 53. The upper housing 1 is snapped into the power management board 5 by the first snap-fits 13. The cooperation between the first snap-fits 13 and the first snap-fit ​​holes 53 forms a quick-locking structure between the upper housing 1 and the power management board 5, which can replace the traditional screw fixing, eliminate the risk of screw loosening, simplify the assembly process, and improve the safety of the structure.

[0040] The upper housing 1 is provided with at least one positioning post 14, and the power management board 5 is provided with at least one positioning hole 54. The positioning post 14 passes through the corresponding positioning hole 54. The positioning post 14 and the positioning hole 54 cooperate to form a limiting structure, which is beneficial to correct the position of the power management board 5 before the buckle is locked, ensuring that the metal sheet and the connecting hole 51 are accurately aligned, and reducing the assembly difficulty.

[0041] The upper housing 1 is provided with a second latch 15, which is used to engage with the lower housing 2. For example, the second latch 15 is located on the outer circumferential surface of the upper housing 1 near the lower housing 2, and the lower housing 2 has a protrusion corresponding to the second latch 15. The second latch 15 engages with the protrusion, thereby fixing the upper housing 1 and the lower housing 2. The connection between the upper housing 1 and the lower housing 2 via the second latch 15 forms a screwless connection structure, eliminating the risk of screw loosening, simplifying the assembly process, and improving structural safety.

[0042] The battery cell assembly 3 is provided with buffers 31 on its periphery and bottom. The buffers 31 can be made of existing flexible materials, such as foam or rubber. The buffers 31 cover the periphery and bottom of the battery cell assembly 3 to form a buffer structure, which can effectively protect the battery cell assembly 3 and extend its service life.

[0043] An insulating sheet 6 is provided between the electrode adapter plate 4 and the upper housing 1. The insulating sheet 6 can be made of existing insulating materials. The insulating sheet 6 can isolate the electrode adapter plate 4 from the upper housing 1, eliminate the risk of short circuit, and improve the safety performance of the battery pack.

[0044] The power management board 5 is equipped with a temperature sensing harness 55, which passes through the upper housing 1 and extends to the battery cell assembly 3. The temperature sensing harness 55 extends directly through the housing to the battery cell, enabling accurate temperature monitoring and providing support for overheat protection.

[0045] This invention also provides an electronic device including the aforementioned pouch battery pack. It is understood that the electronic device, by incorporating the aforementioned pouch battery pack, also possesses the beneficial effects of a pouch battery pack.

[0046] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] 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 soft-pack battery pack, characterized by, The device includes an upper housing, a lower housing, a battery cell assembly, an electrode adapter plate, and a power management board. The upper housing and the lower housing are connected to form an accommodating space. The battery cell assembly and the electrode adapter plate are disposed within the accommodating space, and the power management board is disposed on the upper housing. The electrode adapter plate includes several rigid metal sheets. The upper housing has several guide grooves corresponding to the rigid metal sheets. The power management board has several connecting holes corresponding to the rigid metal sheets. Conductive sheets pass through the corresponding guide grooves and connecting holes from bottom to top to connect the electrode adapter plate and the power management board.

2. The soft-pack battery pack of claim 1, wherein, One of the electrode adapter board and the power management board is provided with a communication female connector, and the other is provided with a communication pin connector. The upper housing is provided with a glue groove, and the communication pin connector passes through the glue groove and is electrically connected to the communication female connector.

3. The soft-pack battery pack of claim 1, wherein, The rigid metal sheet includes at least one conductive sheet for electrical connection and at least one positioning sheet for positioning.

4. The soft-pack battery pack according to claim 1, characterized in that, The upper housing is provided with a plurality of first buckles, and the power management board is provided with a plurality of first buckle holes. The upper housing is snapped into the power management board by the first buckles.

5. The soft-pack battery pack according to claim 1, characterized in that, The upper housing is provided with at least one positioning post, and the power management board is provided with at least one positioning hole, with the positioning post passing through the corresponding positioning hole.

6. The soft-pack battery pack according to claim 1, characterized in that, The upper housing is provided with a second buckle, and the upper housing is engaged with the lower housing through the second buckle.

7. The soft-pack battery pack according to claim 1, characterized in that, The battery cell assembly is provided with buffers on its periphery and bottom.

8. The soft-pack battery pack according to claim 1, characterized in that, An insulating sheet is provided between the electrode adapter plate and the upper housing.

9. The soft-pack battery pack according to claim 1, characterized in that, The power management board is equipped with a temperature sensing harness that passes through the upper housing and extends to the battery cell assembly.

10. An electronic device, characterized in that, Includes the pouch battery pack as described in any one of claims 1 to 9.

Images