Modular soft-pack polymer battery device for easy assembly

Abstract

The utility model relates to soft pack polymer battery technical field, and disclose modularization soft pack polymer battery device convenient to assemble, modularization soft pack polymer battery device convenient to assemble, including battery box, inner partition frame, soft pack polymer battery body and apron. The modularization soft pack polymer battery device convenient to assemble, through modularization battery box and inner partition frame cooperation can be combined multiple soft pack polymer battery body flexibly, the assembly efficiency is improved significantly, the inner partition frame is spaced apart to the battery body, avoids the extrusion collision risk caused by the direct contact of adjacent battery, and the use safety is strengthened. The through -going or of battery box both ends is established with the heat dissipation hole two of inner lining board and forms the inside and outside air circulation path, effectively dissipates the heat of battery body work time, improves the heat dissipation performance. The bottom support plate is slidably inserted with the inner partition frame through the slide bar, and the elastic buffering action of cooperation spring can reduce the direct impact force to the bottom of battery body when the battery box is vibrated or impacted, protects its structure stability.

Description

Technical Field

[0001] This utility model relates to the field of soft-pack polymer battery technology, specifically to a modular soft-pack polymer battery device that is easy to assemble. Background Technology

[0002] With the rapid development of new energy technologies, pouch polymer batteries have been widely used in portable electronic devices, energy storage systems, and new energy vehicles due to their advantages such as lightweight, high energy density, and flexible shape. However, existing pouch polymer battery devices still face the following problems that urgently need to be solved in practical applications:

[0003] First, traditional battery devices are mostly designed with fixed structures. When battery capacity needs to be adjusted according to different scenarios (such as power requirements and space constraints), it is difficult to quickly achieve modular combination of multiple pouch batteries. The assembly process relies on complex fixed structures or additional connecting parts, which is time-consuming and inefficient. Second, when multiple pouch batteries are closely arranged inside the device, there is a lack of effective isolation between adjacent batteries. During long-term use, the battery casing is easily damaged due to compression and collision, or even internal short circuits, posing safety hazards. Third, pouch batteries release heat when working. If the heat dissipation design is insufficient, the heat will accumulate inside the device, which will accelerate battery aging and even lead to the risk of thermal runaway. In addition, the device may be exposed to vibration or impact during transportation or use. Traditional fixing methods are difficult to effectively buffer external stress, which can easily cause relative displacement between the battery and the internal structure, affecting electrode performance or causing loose connections. Finally, the positive and negative terminals of multiple pouch batteries need to be connected to the external circuit one by one. The wiring steps are cumbersome and prone to errors, increasing the complexity of assembly and maintenance.

[0004] Therefore, it is necessary to propose a modular soft-pack polymer battery device that is easy to assemble. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a modular soft-pack polymer battery device that is easy to assemble, possessing advantages such as high assembly efficiency, high safety, good heat dissipation, and good vibration adaptability, thus overcoming the defects of existing technologies mentioned in the background art.

[0006] This utility model provides the following technical solution: a modular soft-pack polymer battery device that is easy to assemble, including a battery box, inner partitions, soft-pack polymer battery bodies, and a cover plate. The battery box has heat dissipation holes on both sides. There are several inner partitions, and the two ends of each inner partition are fixedly connected to the inner wall of the battery box. Spring contacts are fixedly connected to both sides of each inner partition. There are several soft-pack polymer battery bodies disposed inside the battery box. A positive electrode and a negative electrode are fixedly connected to the top of each soft-pack polymer battery body. The inner partitions separate the soft-pack polymer battery bodies. The cover plate is disposed at the top of the battery box.

[0007] Preferably, both ends of the battery box are provided with openings, and an inner lining plate is fixedly connected to the inner edge of the opening. The surface of the inner lining plate is provided with two heat dissipation holes.

[0008] Preferably, the inner bottom of the battery box is provided with a bottom support plate, and a sliding rod is fixedly connected to the upper surface of the bottom support plate. A limiting head is fixedly connected to the top of the sliding rod. The sliding rod is slidably inserted into the bottom end of the inner partition. A spring is movably sleeved on the surface of the limiting head. The bottom end of the spring abuts against the top end of the bottom of the inner partition, and the top end of the spring abuts against the bottom end of the limiting head. The upper surface of the bottom support plate abuts against the bottom end of the soft-pack polymer battery body.

[0009] Preferably, the spring sheet abuts against the side of the soft-pack polymer battery body.

[0010] Preferably, each of the four corners of the lower surface of the cover plate is fixedly connected with a ground lug, and the side of the ground lug is provided with a limiting hole. Both sides of the battery box are threaded with fastening bolts, and the ends of the fastening bolts are engaged with the limiting holes.

[0011] Preferably, the lower surface of the cover plate has a pre-installation hole that matches the positions of the positive and negative electrodes, and the upper surface of the cover plate is fixedly connected to an integration plate for electrode integration, and the upper surface of the integration plate is fixedly connected to a connecting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This modular, easily assembled pouch polymer battery device allows for flexible combination of multiple pouch polymer battery units through the modular battery box and internal dividers, significantly improving assembly efficiency. The internal dividers separate the battery units, avoiding the risk of squeezing and collision caused by direct contact between adjacent batteries, thus enhancing safety. Openings at both ends of the battery box and ventilation holes on the inner liner form internal and external airflow paths, effectively dissipating heat from the battery units during operation and improving heat dissipation performance. The bottom support plate slides into the internal dividers via sliding rods, and with the elastic cushioning effect of springs, reduces the direct impact force on the bottom of the battery units when the battery box is subjected to vibration or impact, protecting its structural stability. The spring tabs on both sides of the internal dividers abut against the sides of the battery units, absorbing some vibration energy during horizontal vibrations and further fixing the battery position to prevent shaking. The lugs on the underside of the cover plate, together with the fastening bolts on both sides of the battery box and the limiting holes, enable the cover plate to be quickly positioned and securely connected, simplifying the assembly process; the pre-installation holes match the positive and negative positions to facilitate electrode alignment, and the integration board and connecting board integrate the positive and negative terminals of multiple batteries, simplifying the external circuit connection steps and improving wiring efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0016] Figure 2 This is a cross-sectional view of the battery box of this utility model;

[0017] Figure 3 This is a schematic diagram of the main body structure of the soft-pack polymer battery of this utility model;

[0018] Figure 4 This is a schematic diagram of the cover plate structure of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 100. Battery box; 101. Opening; 102. One heat dissipation hole; 103. Fastening bolts;

[0021] 200. Inner lining plate; 201. Second heat dissipation hole;

[0022] 300. Inner partition; 301. Spring clip;

[0023] 400. Base support plate; 401. Slide rod; 402. Limiting head; 403. Spring;

[0024] 500, Soft-pack polymer battery body; 501, Positive electrode; 502, Negative electrode;

[0025] 600, cover plate; 601, pre-installation hole; 602, ground lug; 603, limiting hole; 604, integration plate; 605, connecting plate. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-4As shown, a modular soft-pack polymer battery device that is easy to assemble includes a battery box 100, inner partitions 300, soft-pack polymer battery bodies 500, and a cover plate 600. Both sides of the battery box 100 are provided with heat dissipation holes 102. There are several inner partitions 300, and the two ends of each inner partition 300 are fixedly connected to the inner wall of the battery box 100. Spring contacts 301 are fixedly connected to both sides of each inner partition 300. There are several soft-pack polymer battery bodies 500 located inside the battery box 100. A positive electrode 501 and a negative electrode 502 are fixedly connected to the top of each soft-pack polymer battery body 500. The inner partitions 300 separate the soft-pack polymer battery bodies 500. The cover plate 600 is located at the top of the battery box 100. The modular design of the battery box 100 and the inner partition 300 facilitates the flexible combination of multiple soft-pack polymer battery bodies 500 according to needs, improving assembly efficiency; the inner partition 300 separates the soft-pack polymer battery bodies 500, avoiding direct contact between adjacent soft-pack polymer battery bodies 500, reducing the risk of squeezing and collision, and enhancing safety in use.

[0028] Preferably, both ends of the battery box 100 have openings 101, and an inner liner 200 is fixedly connected to the inner edge of the opening 101. The surface of the inner liner 200 has heat dissipation holes 201. The beneficial effects of the openings 101 at both ends of the battery box 100 and the inner liner 200 are: the openings 101 at both ends of the battery box 100, together with the heat dissipation holes 201 on the inner liner 200, form an internal and external airflow path, which helps to dissipate the heat generated by the soft-pack polymer battery body 500 inside the battery box 100 during operation, thus improving the heat dissipation performance of the device.

[0029] In a further preferred embodiment, the inner bottom of the battery box 100 is provided with a bottom support plate 400, and a slide rod 401 is fixedly connected to the upper surface of the bottom support plate 400. A limit head 402 is fixedly connected to the top of the slide rod 401. The slide rod 401 is slidably inserted into the bottom end of the inner partition 300. A spring 403 is movably sleeved on the surface of the limit head 402. The bottom end of the spring 403 abuts against the top end of the bottom of the inner partition 300, and the top end of the spring 403 abuts against the bottom end of the limit head 402. The upper surface of the bottom support plate 400 abuts against the bottom end of the soft-pack polymer battery body 500. Beneficial effects of bottom support plate 400 and elastic buffer assembly: Bottom support plate 400 is slidably inserted into the bottom end of inner partition 300 through slide rod 401. With the elastic buffering effect of spring 403, when the battery box 100 is subjected to vibration or impact, the compression and rebound of spring 403 can reduce the direct impact force on the bottom of soft-pack polymer battery body 500, thus protecting the structural stability of battery body 500.

[0030] Preferably, the spring piece 301 abuts against the side of the soft-pack polymer battery body 500. The beneficial effects of the spring piece 301 on both sides of the inner divider 300: When the battery box 100 is subjected to slight horizontal vibration, the elastic deformation of the spring piece 301 absorbs some of the vibration energy, further fixing the position of the soft-pack polymer battery body 500 and preventing it from shaking within the inner divider 300.

[0031] Preferably, each of the four corners of the lower surface of the cover plate 600 is fixedly connected with a lug 602, and the side of the lug 602 is provided with a limiting hole 603. Both sides of the battery box 100 are threadedly connected with fastening bolts 103, and the ends of the fastening bolts 103 engage with the limiting holes 603. The beneficial effects of the lugs 602 and fastening bolts 103 on the cover plate 600 are: the lugs 602 at the four corners of the lower surface of the cover plate 600 and the fastening bolts 103 on both sides of the battery box 100, in conjunction with the limiting holes 603, can realize the rapid positioning and fixing of the cover plate 600, simplify the assembly process, and at the same time ensure the stability of the connection between the cover plate 600 and the battery box 100, thereby improving the reliability of the overall structure of the device.

[0032] Preferably, the lower surface of the cover plate 600 has a pre-installation hole 601, which matches the positions of the positive electrode 501 and the negative electrode 502. An integration plate 604 for electrode integration is fixedly connected to the upper surface of the cover plate 600, and a connecting plate 605 is fixedly connected to the upper surface of the integration plate 604. The beneficial effects of the pre-installation hole 601 in the cover plate 600 and the integration assembly are as follows: the pre-installation hole 601 on the lower surface of the cover plate 600 matches the positions of the positive electrode 501 and the negative electrode 502, facilitating quick alignment of the electrode positions during assembly and avoiding misalignment; the integration plate 604 and the connecting plate 605 can centrally integrate the positive electrodes 501 and negative electrodes 502 of multiple soft-pack polymer battery bodies 500, simplifying external circuit connection steps and improving wiring efficiency.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] 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 modular, easily assembled pouch polymer battery device, comprising a battery case (100), an inner divider (300), a pouch polymer battery body (500), and a cover plate (600), characterized in that: The battery box (100) has heat dissipation holes (102) on both sides. There are several inner partitions (300), and the two ends of the inner partitions (300) are fixedly connected to the inner wall of the battery box (100). There are spring pieces (301) fixedly connected to both sides of the inner partitions (300). There are several soft-pack polymer battery bodies (500) and they are disposed inside the battery box (100). The top of the soft-pack polymer battery body (500) is fixedly connected to a positive electrode (501) and a negative electrode (502). The inner partitions (300) separate the soft-pack polymer battery bodies (500). The cover plate (600) is disposed at the top of the battery box (100).

2. The modular soft-pack polymer battery device for easy assembly according to claim 1, characterized in that: Both ends of the battery box (100) are provided with openings (101), and an inner lining plate (200) is fixedly connected to the inner edge of the opening (101). The surface of the inner lining plate (200) is provided with heat dissipation holes (201).

3. The modular soft-pack polymer battery device for easy assembly according to claim 1, characterized in that: The battery box (100) has a bottom support plate (400) at its inner bottom. A slide rod (401) is fixedly connected to the upper surface of the bottom support plate (400). A limit head (402) is fixedly connected to the top of the slide rod (401). The slide rod (401) is slidably inserted into the bottom end of the inner partition (300). A spring (403) is movably sleeved on the surface of the limit head (402). The bottom end of the spring (403) abuts against the top end of the bottom of the inner partition (300). The top end of the spring (403) abuts against the bottom end of the limit head (402). The upper surface of the bottom support plate (400) abuts against the bottom end of the soft-pack polymer battery body (500).

4. The modular soft-pack polymer battery device for easy assembly according to claim 1, characterized in that: The spring piece (301) abuts against the side of the soft-pack polymer battery body (500).

5. The modular soft-pack polymer battery device for easy assembly according to claim 1, characterized in that: The cover plate (600) has four corners fixedly connected with lugs (602), and the lugs (602) have limit holes (603) on their sides. The battery box (100) has two sides threaded with fastening bolts (103), and the ends of the fastening bolts (103) are engaged with the limit holes (603).

6. The modular soft-pack polymer battery device for easy assembly according to claim 1, characterized in that: The lower surface of the cover plate (600) is provided with a pre-installation hole (601), which matches the position of the positive electrode (501) and the negative electrode (502). The upper surface of the cover plate (600) is fixedly connected with an integration plate (604) for electrode integration, and the upper surface of the integration plate (604) is fixedly connected with a connecting plate (605).

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