Lithium ion battery with reinforced waterproof function at connection

Abstract

The utility model relates to the technical field of lithium ion battery of waterproof function, and disclose a kind of lithium ion battery of reinforced waterproof function at connecting place, including lithium battery body and the first shell fixed on the surface of lithium battery body, further include: the second shell fixed on the surface of lithium battery body, the surface of first shell is provided with pivot, the utility model can realize quick sealing and protection by the synergic effect of enabling mechanism and fixed mechanism, when operating, the embedded fixed in fixed mechanism can quickly occlusal connecting component, form stable mechanical locking structure, ensure sealing, and enabling mechanism is released by instantaneously preset waterproof foam glue, the gel body rapidly expands and evenly wraps connecting part, forms dense and flexible protective layer, not only shorten sealing construction time, more improve the waterproof grade of connecting place, effectively block moisture intrusion, guarantee the reliable operation of battery system in harsh environment.

Description

Technical Field

[0001] This utility model relates to the field of waterproof lithium-ion battery technology, specifically to a lithium-ion battery with enhanced waterproofing at the connection point. Background Technology

[0002] Adding waterproof devices to the connection points of lithium batteries can effectively prevent the intrusion of water, moisture, and corrosive liquids, avoiding metal oxidation and insulation material deterioration at the connection points due to excessive environmental humidity or accidental immersion in water, which can lead to poor contact, short circuits, or even battery performance degradation. At the same time, waterproof devices can also improve the adaptability of the battery system in humid, rainy, or high-salt-spray environments, extend the service life of connection components, and ensure the safe and stable operation of lithium batteries under complex working conditions. This is a key measure to ensure the reliability and durability of the battery system.

[0003] Currently, most lithium battery connections use poorly protected components. Exposed electrical connections lack necessary isolation and sealing measures, making it difficult to form effective protection. When the battery pack is in a humid, rainy, or high-salt-spray environment, moisture and humidity can easily penetrate the internal circuitry through the connection gaps, leading to oxidation and corrosion of metal contacts, deterioration of insulation material performance, and consequently, increased contact resistance, abnormal signal transmission, or even short circuits. This lack of protection not only reduces the reliability and lifespan of the battery system but may also cause equipment shutdown or malfunction due to circuit abnormalities, severely impacting the user experience. Utility Model Content

[0004] The purpose of this invention is to provide a lithium-ion battery with enhanced waterproofing at the connection point, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium-ion battery with enhanced waterproofing at the connection point, comprising a lithium battery body and a first outer shell fixed to the surface of the lithium battery body, and further comprising:

[0006] A second outer shell is fixed to the surface of the lithium battery body. The surface of the first outer shell is provided with a rotating shaft and a fixing mechanism. The inner cavity of the first outer shell is provided with an activation mechanism. A foaming agent storage chamber is fixed to the inner wall of the first outer shell.

[0007] Preferably, the fixing mechanism further includes:

[0008] A fixed shell is fixed to the surface of the first outer shell. A limit block is fixed to the inner wall of the fixed shell. Several sleeves are fixed to the inner wall of the fixed shell. Several springs are fixed to the inner wall of the fixed shell. A stop block is fixed to the other end of the spring. A slider is fixed to the surface of the stop block. A locking block is fixed to the surface of the second outer shell.

[0009] Preferably, the activation mechanism further includes:

[0010] A support rod slides on the surface of the first outer shell, with a handle fixed at one end and a cutting edge fixed at the other end.

[0011] Preferably, one end of the card block is shaped as a triangular prism, and the inclined surface is smooth.

[0012] Preferably, the cutting edge is a triangular pyramid with one end being a sharp blade.

[0013] Preferably, the foaming agent storage chamber is made of rubber, which has the ability to isolate air.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention achieves rapid sealing and protection through the synergistic action of the activation and fixing mechanisms. During operation, the internal locking mechanism quickly engages the connecting components, forming a stable mechanical locking structure to ensure a seal. Furthermore, the activation mechanism instantly releases pre-placed Meisheng flame-retardant foaming agent B1, which rapidly expands and evenly coats the connection area, forming a dense and flexible protective layer. This not only shortens the sealing construction time but also improves the waterproof and flame-retardant ratings of the connection, effectively preventing moisture intrusion and ensuring the reliable operation of the battery system in harsh environments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention;

[0019] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the present invention;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Lithium battery body; 2. First outer shell; 3. Second outer shell; 4. Rotating shaft; 5. Fixing mechanism; 51. Fixing shell; 52. Limiting block; 53. Sleeve; 54. Spring; 55. Abutment; 56. Slider; 57. Locking block; 6. Activation mechanism; 61. Handle; 62. Support rod; 63. Scratching blade; 7. Foaming agent storage chamber. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6 As shown, a lithium-ion battery with enhanced waterproofing at the connection point includes a lithium battery body 1, a first outer shell 2 fixed to the surface of the lithium battery body 1, a second outer shell 3 fixed to the surface of the lithium battery body 1, a rotating shaft 4 provided on the surface of the first outer shell 2, a fixing mechanism 5 provided on the surface of the first outer shell 2, an activation mechanism 6 provided in the inner cavity of the first outer shell 2, and a foaming agent storage chamber 7 fixed to the inner wall of the first outer shell 2.

[0025] The first outer shell 2 is fixed to the surface of the lithium battery body 1 to protect the connection and support the internal fixed parts, and to provide a limiting container for the release of the internal Meisheng flame retardant foaming agent B1, ensuring the integrity of the package.

[0026] The second outer shell 3 rotates on the surface of the rotating shaft 4 to form a sealed space with the first outer shell 2, thereby releasing the foaming agent and ensuring complete internal filling.

[0027] The rotating shaft 4 is disposed on the surface of the first housing 2 to provide support for the rotation of the second housing 3.

[0028] The fixing mechanism 5 is set on the surface of the first housing 2. It can be quickly fixed by snap-fit ​​and locked inside by simple pushing, thus ensuring that the inside will not be stretched open by pressure when the foaming agent is released.

[0029] The fixing mechanism 5 includes a fixing shell 51 fixed to the surface of the first outer shell 2, a limit block 52 fixed to the inner wall of the fixing shell 51, a plurality of sleeves 53 fixed to the inner wall of the fixing shell 51, a plurality of springs 54 fixed to the inner wall of the fixing shell 51, a stop block 55 fixed to the other end of the springs 54, a slider 56 fixed to the surface of the stop block 55, and a locking block 57 fixed to the surface of the second outer shell 3.

[0030] The fixing shell 51 is fixed to the surface of the first outer shell 2 to limit the sliding trajectory of its locking block 57 and to protect the internal parts from being stuck together by the foaming agent.

[0031] The limiting block 52 is fixed to the surface of the fixed shell 51 to limit the entry of the locking block 57 and prevent the slider 56 from sliding out, thus providing support for the overall fixation.

[0032] The sleeve 53 is fixed to the inner wall of the fixed shell 51 to limit the sliding trajectory of the abutment 55 and to provide a limit to prevent the spring 54 from twisting, ensuring that the abutment 55 can slide on a certain trajectory.

[0033] Spring 54 is fixed to the inner wall of fixed shell 51 and is used to provide power for the movement of block 55. After being squeezed, it lifts slider 56 again, thereby fixing block 57.

[0034] The stop block 55 slides in the inner cavity of the sleeve 53, and the force is transmitted to the surface of the spring 54 through the stop block 55, thereby driving the slider 56 fixed on its surface to move and limit.

[0035] The slider 56 slides within the inner cavity of the fixed shell 51 to hold the locking block 57. When the locking block 57 slides in, it will sink down to allow it to pass smoothly. After it is fully inserted, it will pop out again to complete the fixing of the locking block 57.

[0036] The locking block 57 is fixed to the surface of the second outer shell 3 and is used to connect the first outer shell 2 and the second outer shell 3. The closure is completed by the embedded fixing.

[0037] One end of the locking block 57 is shaped like a triangular prism with a smooth inclined surface, which ensures smooth sliding in and fixation through its shape features after sliding in.

[0038] The activation mechanism 6 is located inside the first outer shell 2. By pulling and opening the foaming agent storage chamber 7, the foaming agent is released. The internal release is completed without direct contact with the foaming agent, thereby achieving the purpose of isolating the liquid.

[0039] The activation mechanism 6 includes a support rod 62 that slides on the surface of the first housing 2. One end of the support rod 62 is fixed with a handle 61, and the other end of the support rod 62 is fixed with a cutting blade 63.

[0040] The handle 61 is fixed to one end of the support rod 62. By pulling the handle 61, the support rod 62 is pulled, thereby driving other components to open the foaming agent storage chamber 7.

[0041] The support rod 62 slides on the surface of the first housing 2 to connect the other end of the cutting blade 63 for sliding.

[0042] The cutting edge 63 slides on the surface of the foaming agent storage chamber 7, and cuts open the surface of the foaming agent storage chamber 7 by cutting, thereby releasing the foaming agent stored inside, and then allowing it to come into contact with air to complete the expansion and filling.

[0043] The cutting edge 63 is shaped like a triangular pyramid, with one end being a sharp blade and the other end being long enough to be inserted into the inner cavity of the foaming agent storage chamber 7, ensuring that the foaming agent storage chamber 7 can be cut open to release it.

[0044] The foaming agent storage chamber 7 is fixed to the inner wall of the first outer shell 2 and is used to store Meisheng flame retardant foaming agent B1. This foaming agent can not only prevent the accumulation of heat caused by the heating of internal equipment, but also achieve flame retardant effect by adding flame retardant components such as phosphorus and nitrogen flame retardants. Its closed-cell structure can prevent moisture penetration.

[0045] The foaming agent storage chamber 7 is made of rubber, which has the ability to isolate air and can be opened by pulling, so as to quickly release the foaming agent and ensure that it will not come into contact with air and deteriorate before work.

[0046] Working principle: After connecting the lithium battery, the second outer shell 3 can be pushed to fully conform to the first outer shell 2 under the support of the rotating shaft 4. During the conformation process, the locking block 57 gradually approaches the fixed shell 51. As the locking block 57 gradually penetrates deeper, the slider 56 is pushed inward and compressed until the locking block 57 is completely inside the fixed shell 51. The internal fixed spring 54 will be released after losing the pressure of the slider 56, causing the slider 56 to spring back and return to its initial state. Due to the shape of the locking block 57, it is fitted and fixed inside. After closing, the handle 61 can be pulled. Under the pull of the handle 61, the support rod 62 is gradually pulled out. As the support rod 62 is pulled out, the cutting edge 63 at the other end gradually cuts the surface of the foaming agent storage chamber 7, causing the foaming agent stored inside to be released. Under continuous contact with air, it expands to complete the wrapping. Under the wrapping of the foaming agent, it ensures that the internal connection will not come into contact with liquid. The excess foaming agent will also fill the connection between the wire and the first outer shell 2, thereby ensuring the seal.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[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 lithium-ion battery with enhanced waterproofing at the connection point, comprising a lithium battery body (1) and a first outer casing (2) fixed to the surface of the lithium battery body (1), characterized in that: Also includes: A second outer shell (3) is fixed to the surface of the lithium battery body (1). A rotating shaft (4) is provided on the surface of the first outer shell (2). A fixing mechanism (5) is provided on the surface of the first outer shell (2). An activation mechanism (6) is provided in the inner cavity of the first outer shell (2). A foaming agent storage chamber (7) is fixed on the inner wall of the first outer shell (2).

2. A lithium-ion battery with enhanced waterproofing at the connection point according to claim 1, characterized in that: The fixing mechanism (5) also includes: A fixed shell (51) is fixed to the surface of the first outer shell (2). A limit block (52) is fixed to the inner wall of the fixed shell (51). A plurality of sleeves (53) are fixed to the inner wall of the fixed shell (51). A plurality of springs (54) are fixed to the inner wall of the fixed shell (51). A stop block (55) is fixed to the other end of the spring (54). A slider (56) is fixed to the surface of the stop block (55). A locking block (57) is fixed to the surface of the second outer shell (3).

3. A lithium-ion battery with enhanced waterproofing at the connection point according to claim 1, characterized in that: The activation mechanism (6) also includes: A support rod (62) slides on the surface of the first outer shell (2). One end of the support rod (62) is fixed with a handle (61), and the other end of the support rod (62) is fixed with a cutting edge (63).

4. A lithium-ion battery with enhanced waterproofing at the connection point according to claim 2, characterized in that: The card block (57) has a triangular prism shape at one end and a smooth inclined surface.

5. A lithium-ion battery with enhanced waterproofing at the connection point according to claim 3, characterized in that: The cutting edge (63) is shaped like a triangular pyramid with one end being a sharp blade.

6. A lithium-ion battery with enhanced waterproofing at the connection point according to claim 1, characterized in that: The foaming agent storage chamber (7) is made of rubber and has the ability to isolate air.

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