Sealing device of lithium battery
By designing a multi-layer structure deformable sealing mechanism and a deformable lifting mechanism, the problem of air leakage due to the increase in internal air pressure of traditional lithium battery sealing devices is solved, and a higher seal reliability and application range is achieved, and a cooling function is provided for lithium batteries.
Patent Information
- Application Number
- CN202510149205.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-05-30
AI Technical Summary
Traditional lithium battery sealing devices are prone to air leakage due to increased internal air pressure during installation and use, affecting seal reliability and user experience.
A sealing device including a deformable sealing mechanism and a deformable lifting mechanism is designed. The deformable sealing mechanism adjusts the air pressure in the sealing metal box through the mutual cooperation of the multi-layer structure, so that it is in a negative pressure state to avoid air leakage. The deformable lifting mechanism is used to support and cool down lithium batteries.
It effectively avoids air leakage due to excessive internal air pressure of sealed metal boxes, improves the seal reliability and user experience of the sealing device, and is suitable for different models of lithium batteries, expanding the scope of application. In addition, the airbag plate is expanded by negative pressure, which further enhances the sealing effect and provides cooling function for lithium batteries.
Smart Images
Figure CN120073192A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of lithium batteries, and in particular relates to a sealing device for a lithium battery. Background Art
[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream, and corresponding sealing devices are used when using lithium batteries. The traditional sealing device includes a sealing box, a heat dissipation block, a heat dissipation hole, a placement cavity, a sealing cover, a fixing pad, a plug-in block, a clamping block, a limiting plate, a first tooth plate, a second tooth plate, a gear, a fixing block, a sliding block and a plug-in slot. The sealing device has the advantage that it can limit the battery in the placement cavity to prevent the lithium battery from shaking inside the sealing box. However, during the installation process of traditional sealing devices, it is inevitable that the air pressure in the sealed box will increase. In the subsequent use process, the temperature increase of the lithium battery will cause the gas in the sealed box to further expand due to the heat, making the sealed box prone to leakage due to excessive internal air pressure, resulting in poor sealing reliability of the sealing device, affecting the user experience of the sealing device. Summary of the invention
[0003] The object of the present invention is to provide a sealing device for a lithium battery to solve the problems raised in the above background technology.
[0004] To achieve the above object, the present invention provides the following technical solution: A sealing device for a lithium battery, comprising a sealed metal box. A deformable sealing mechanism is provided at the open end of the sealed metal box, and a deformable lifting mechanism for supporting and cooling the lithium battery is provided at the end of the sealed metal box away from the deformable sealing mechanism. The deformable sealing mechanism includes a second limit metal mounting plate. A limit metal connection is provided on the side of the second limit metal mounting plate facing the sealed metal box. The limit metal connection is slidably connected to the sealed metal box. A first elastic sealing airbag plate is provided on the side of the limit metal connection away from the second limit metal mounting plate. The first elastic sealing airbag plate is fixedly connected to the limit metal connection. A first limit metal mounting plate is provided on the side of the second limit metal mounting plate away from the sealed metal box. The first limit metal mounting plate is fixedly connected to the second limit metal mounting plate. A first limit metal mounting tube is provided on the side of the first limit metal mounting plate facing the sealed metal box. The first limit metal mounting tube penetrates through the second limit metal mounting plate, the limit metal connection and the first elastic sealing airbag plate. The first limit metal mounting tube is fixedly connected to the second limit metal mounting plate. A limit metal adjusting plate for cooperating with the first limit metal mounting tube to seal the open end of the sealed metal box is further provided on the side of the first limit metal mounting plate facing the sealed metal box. The limit metal adjusting plate is hermetically slidably connected to the first limit metal mounting tube.
[0005] As a further scheme of the present invention: A first limit adjusting screw is rotatably connected to the side of the limit metal adjusting plate facing the first limit metal mounting plate. A limit metal support column corresponding to the first limit adjusting screw is provided on the side of the second limit metal mounting plate away from the sealed metal box. The limit metal support column penetrates through the first limit metal mounting plate. The limit metal support column is fixedly connected to the first limit metal mounting plate. The limit metal support column is threadedly connected to the first limit adjusting screw.
[0006] As a still further scheme of the present invention: A deformable protective sealing ring for cooperating with the limit metal adjusting plate to seal the first limit metal mounting tube is provided on the side of the first limit metal mounting plate facing the sealed metal box. The deformable protective sealing ring is embedded in the middle of the side of the limit metal adjusting plate. A second elastic sealing airbag plate is provided on the side of the limit metal adjusting plate away from the first limit metal mounting plate. The second elastic sealing airbag plate is fixedly connected to the limit metal adjusting plate.
[0007] As a further solution of the present invention: The deformable lifting mechanism includes a third limiting metal mounting plate, which is fixedly connected to the sealed metal box. On the side of the third limiting metal mounting plate facing the deformable sealing mechanism, there is an adjustable metal lifting plate. At both ends of the third limiting metal mounting plate, there are several second limiting metal mounting tubes. The end of the second limiting metal mounting tube far from the third limiting metal mounting plate is slidably connected with an adjustable support metal plate for supporting the adjustable metal lifting plate. At the end of the second limiting metal mounting tube far from the third limiting metal mounting plate, there are several second limiting adjustment screws for fixing the adjustable support metal plate.
[0008] As a further solution of the present invention: On the side of the third limiting metal mounting plate facing the adjustable metal lifting plate, there is a second liquid storage metal box, which is fixedly connected to the third limiting metal mounting plate. On the side of the second liquid storage metal box far from the third limiting metal mounting plate, there are several metal heat exchange fins arranged at intervals, and the metal heat exchange fins are fixedly connected to the second liquid storage metal box.
[0009] As a further solution of the present invention: On the side of the second liquid storage metal box far from the adjustable metal lifting plate, there is a first liquid storage metal box. At one end of the second liquid storage metal box, there are several first hollow infusion hoses for delivering coolant to the first liquid storage metal box. At the end of the first liquid storage metal box far from the first hollow infusion hose, there are several second hollow infusion hoses for delivering coolant to the second liquid storage metal box.
[0010] As a further solution of the present invention: On the side of the second liquid storage metal box facing the first liquid storage metal box, there is a metal ventilation and cooling pipe, which penetrates through the first liquid storage metal box and is fixedly connected to the first liquid storage metal box. On the side of the adjustable metal lifting plate far from the third limiting metal mounting plate, there is a second deformable protection plate, which is fixedly connected to the adjustable metal lifting plate.
[0011] As a further solution of the present invention: At the end of the sealed metal box far from the deformable sealing mechanism, there are also several first deformable protection plates for anti-slip and shock absorption. The several first deformable protection plates are arranged at intervals at both ends of the lower surface of the sealed metal box, and the sealed metal box is fixedly connected to the first deformable protection plate.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is simple and convenient to use. During use, through the mutual cooperation of multiple structures, the air pressure in the sealed metal box is adjusted to make the inside of the sealed metal box in a negative pressure state, thereby avoiding air leakage of the sealed metal box due to too high internal air pressure. And the sealing effect is enhanced through the external air pressure. Secondly, due to the negative pressure in the sealed metal box, the first elastic sealing airbag plate and the second elastic sealing airbag plate expand, and the sealing effect of the sealing device is further improved through the expanded first elastic sealing airbag plate and the second elastic sealing airbag plate. In addition, the present invention can be applied to lithium batteries of different models, making the applicable range of the sealing device wider. Moreover, the present invention can cool the lithium battery, making the functions of the sealing device more abundant. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of a sealing device for a lithium battery; Figure 2 is an exploded view of the structure of a sealing device for a lithium battery; Figure 3 is a schematic structural diagram of a deformable sealing mechanism in a sealing device for a lithium battery; Figure 4 is a schematic structural diagram of a limiting metal pressure regulating plate in a sealing device for a lithium battery; Figure 5 is a schematic structural diagram of a first elastic sealing airbag plate in a sealing device for a lithium battery; Figure 6 is an exploded view of the structure of a deformable lifting mechanism in a sealing device for a lithium battery; Figure 7 is a schematic structural diagram of a first liquid storage metal box in a sealing device for a lithium battery; In the figure: 1 - sealed metal box, 2 - deformable sealing mechanism, 3 - deformable lifting mechanism, 4 - first deformable protection plate, 20 - first limiting metal mounting plate, 21 - limiting metal connection, 22 - limiting metal pressure regulating plate, 23 - first limiting adjustment screw, 24 - second limiting metal mounting plate, 25 - first limiting metal mounting tube, 26 - limiting metal support column, 27 - first elastic sealing airbag plate, 28 - deformable protection sealing ring, 29 - second elastic sealing airbag plate, 30 - second limiting adjustment screw, 31 - third limiting metal mounting plate, 32 - adjustable metal lifting plate, 33 - second deformable protection plate, 34 - adjustable support metal plate, 35 - second limiting metal mounting tube, 36 - first liquid storage metal box, 37 - metal ventilation and cooling tube, 38 - first hollow infusion hose, 391 - second liquid storage metal box, 392 - metal heat exchange fins, 393 - second hollow infusion hose. DETAILED DESCRIPTION OF THE INVENTION
[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0015] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set.
[0016] For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0017] Please refer to Figure 1 and Figure 2 , this embodiment provides a sealing device for a lithium battery, including a sealed metal box 1. A deformable sealing mechanism 2 is provided at the open end of the sealed metal box 1. A deformable lifting mechanism 3 for supporting and cooling the lithium battery is provided at one end of the sealed metal box 1 away from the deformable sealing mechanism 2. A plurality of first deformable protection plates 4 for anti-slip and shock absorption are also provided at one end of the sealed metal box 1 away from the deformable sealing mechanism 2. The first deformable protection plates 4 are rubber plates or silica gel plates. The plurality of first deformable protection plates 4 are spaced apart at both ends of the lower surface of the sealed metal box 1, and the sealed metal box 1 is fixedly connected to the first deformable protection plates 4.
[0018] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, in one embodiment, to make the use of the deformable sealing mechanism 2 more reliable, in this embodiment, preferably, the deformable sealing mechanism 2 includes a second limiting metal mounting plate 24. A limiting metal connection 21 is provided on one side of the second limiting metal mounting plate 24 facing the sealing metal box 1. During use, the limiting metal connection 21 is installed and fixed by screws on the sealing metal box 1. The limiting metal connection 21 is slidably connected to the sealing metal box 1. A first elastic sealing airbag plate 27 is provided on the side of the limiting metal connection 21 away from the second limiting metal mounting plate 24. The first elastic sealing airbag plate 27 is a hollow rubber plate with a square frame structure. The first elastic sealing airbag plate 27 is fixedly connected to the limiting metal connection 21. A first limiting metal mounting plate 20 is provided on the side of the second limiting metal mounting plate 24 away from the sealing metal box 1. The first limiting metal mounting plate 20 is fixedly connected to the second limiting metal mounting plate 24. A first limiting metal mounting tube 25 is provided on the side of the first limiting metal mounting plate 20 facing the sealing metal box 1. The first limiting metal mounting tube 25 passes through the second limiting metal mounting plate 24, the limiting metal connection 21, and the first elastic sealing airbag plate 27. The first limiting metal mounting tube 25 is fixedly connected to the second limiting metal mounting plate 24. A limiting metal adjusting plate 22 for cooperating with the first limiting metal mounting tube 25 to seal the open end of the sealing metal box 1 is also provided on the side of the first limiting metal mounting plate 20 facing the sealing metal box 1. The limiting metal adjusting plate 22 is slidably sealedly connected to the first limiting metal mounting tube 25; Please refer to Figure 3 , Figure 4 and Figure 5 , in one embodiment, to make the use of the deformable sealing mechanism 2 more convenient, in this embodiment, preferably, a first limiting adjusting screw 23 is rotatably connected to the side of the limiting metal adjusting plate 22 facing the first limiting metal mounting plate 20. The limiting metal adjusting plate 22 is rotatably connected to the first limiting adjusting screw 23 through a bearing. A limiting metal support column 26 corresponding to the first limiting adjusting screw 23 is provided on the side of the second limiting metal mounting plate 24 away from the sealing metal box 1. The limiting metal support column 26 passes through the first limiting metal mounting plate 20. The limiting metal support column 26 is fixedly connected to the first limiting metal mounting plate 20. The limiting metal support column 26 is threadedly connected to the first limiting adjusting screw 23. A deformable protective sealing ring 28 for cooperating with the limiting metal adjusting plate 22 to seal the first limiting metal mounting tube 25 is provided on the side of the first limiting metal mounting plate 20 facing the sealing metal box 1. The material of the deformable protective sealing ring 28 is rubber. The deformable protective sealing ring 28 is embedded in the middle of the side of the limiting metal adjusting plate 22. A second elastic sealing airbag plate 29 is provided on the side of the limiting metal adjusting plate 22 away from the first limiting metal mounting plate 20. The second elastic sealing airbag plate 29 is a hollow rubber plate. The second elastic sealing airbag plate 29 is fixedly connected to the limiting metal adjusting plate 22.
[0019] In another embodiment, in order to make the use of the deformable sealing mechanism 2 more reliable, in this embodiment, preferably, the deformable sealing mechanism 2 includes a second limiting metal mounting plate 24. A limiting metal connection 21 is provided on the side of the second limiting metal mounting plate 24 facing the sealing metal box 1. During use, the limiting metal connection 21 is installed and fixed by screws on the sealing metal box 1. The limiting metal connection 21 is slidably connected to the sealing metal box 1. A first elastic sealing airbag plate 27 is provided on the side of the limiting metal connection 21 away from the second limiting metal mounting plate 24. The first elastic sealing airbag plate 27 is a hollow silica gel plate with a square frame structure. The first elastic sealing airbag plate 27 is fixedly connected to the limiting metal connection 21. A first limiting metal mounting plate 20 is provided on the side of the second limiting metal mounting plate 24 away from the sealing metal box 1. The first limiting metal mounting plate 20 is fixedly connected to the second limiting metal mounting plate 24. A first limiting metal mounting tube 25 is provided on the side of the first limiting metal mounting plate 20 facing the sealing metal box 1. The first limiting metal mounting tube 25 passes through the second limiting metal mounting plate 24, the limiting metal connection 21, and the first elastic sealing airbag plate 27. The first limiting metal mounting tube 25 is fixedly connected to the second limiting metal mounting plate 24. A limiting metal adjusting plate 22 for cooperating with the first limiting metal mounting tube 25 to seal the open end of the sealing metal box 1 is further provided on the side of the first limiting metal mounting plate 20 facing the sealing metal box 1. The limiting metal adjusting plate 22 is hermetically slidably connected to the first limiting metal mounting tube 25; In another embodiment, in order to make the functions of the deformable sealing mechanism 2 more abundant, in this embodiment, preferably, an electric telescopic rod for adjusting the position of the limiting metal adjusting plate 22 is provided on the side of the limiting metal adjusting plate 22 facing the first limiting metal mounting plate 20. One end of the electric telescopic rod is fixedly connected to the limiting metal adjusting plate 22, and the other end of the electric telescopic rod is fixedly connected to the first limiting metal mounting plate 20. A deformable protective sealing ring 28 for cooperating with the limiting metal adjusting plate 22 to seal the first limiting metal mounting tube 25 is provided on the side of the first limiting metal mounting plate 20 facing the sealing metal box 1. The material of the deformable protective sealing ring 28 is silica gel. The deformable protective sealing ring 28 is embedded in the middle of the side of the limiting metal adjusting plate 22. A second elastic sealing airbag plate 29 is provided on the side of the limiting metal adjusting plate 22 away from the first limiting metal mounting plate 20. The second elastic sealing airbag plate 29 is a hollow silica gel plate. The second elastic sealing airbag plate 29 is fixedly connected to the limiting metal adjusting plate 22.
[0020] Please refer to Figure 1 、 Figure 2 、 Figure 6 and Figure 7, in one embodiment, to make the use of the deformable lifting mechanism 3 more reliable, preferably, the deformable lifting mechanism 3 includes a third limit metal mounting plate 31, the third limit metal mounting plate 31 is fixedly connected to the sealed metal box 1, and an adjustable metal lifting plate 32 is arranged on one side of the third limit metal mounting plate 31 facing the deformable sealing mechanism 2. A number of second limit metal mounting tubes 35 are arranged at both ends of the third limit metal mounting plate 31. One end of the second limit metal mounting tube 35 far from the third limit metal mounting plate 31 is slidably connected with an adjustable support metal plate 34 for supporting the adjustable metal lifting plate 32. A number of second limit adjusting screws 30 for fixing the adjustable support metal plate 34 are threadedly connected to one end of the second limit metal mounting tube 35 far from the third limit metal mounting plate 31. A second liquid storage metal box 391 is arranged on one side of the third limit metal mounting plate 31 facing the adjustable metal lifting plate 32. The second liquid storage metal box 391 is fixedly connected to the third limit metal mounting plate 31. A number of metal heat exchange fins 392 are arranged at intervals on one side of the second liquid storage metal box 391 far from the third limit metal mounting plate 31. The metal heat exchange fins 392 are fixedly connected to the second liquid storage metal box 391; Please refer to Figure 6 and Figure 7 , in one embodiment, to make the function of the deformable lifting mechanism 3 more abundant, preferably, a first liquid storage metal box 36 is arranged on one side of the second liquid storage metal box 391 far from the adjustable metal lifting plate 32. A number of first hollow infusion hoses 38 for conveying coolant to the first liquid storage metal box 36 are arranged at one end of the second liquid storage metal box 391. A number of second hollow infusion hoses 393 for conveying coolant to the second liquid storage metal box 391 are arranged at one end of the first liquid storage metal box 36 far from the first hollow infusion hose 38. The interiors of the first liquid storage metal box 36 and the second liquid storage metal box 391 are both filled with coolant, and the coolant is mineral oil. A metal ventilation and cooling pipe 37 is arranged on one side of the second liquid storage metal box 391 facing the first liquid storage metal box 36. The metal ventilation and cooling pipe 37 penetrates through the first liquid storage metal box 36 and is fixedly connected to the first liquid storage metal box 36. A second deformable protection plate 33 is arranged on one side of the adjustable metal lifting plate 32 far from the third limit metal mounting plate 31. The second deformable protection plate 33 is a heat-conducting silica gel plate. During use, the second deformable protection plate 33 plays a role in shock absorption and buffering for the lithium battery. In addition, the second deformable protection plate 33 can also play a role in heat conduction and cooling for the lithium battery. The second deformable protection plate 33 is fixedly connected to the adjustable metal lifting plate 32.
[0021] In another embodiment, to make the use of the deformable lifting mechanism 3 more reliable, in this embodiment, preferably, the deformable lifting mechanism 3 includes a third limit metal mounting plate 31, the third limit metal mounting plate 31 is fixedly connected to the sealed metal box 1, a deformable metal lifting plate 32 is arranged on one side of the third limit metal mounting plate 31 facing the deformable sealing mechanism 2, several second limit metal mounting tubes 35 are arranged at both ends of the third limit metal mounting plate 31, a deformable support metal plate 34 for supporting the deformable metal lifting plate 32 is slidably connected to one end of the second limit metal mounting tube 35 away from the third limit metal mounting plate 31, and several second limit adjusting screws 30 for fixing the deformable support metal plate 34 are threadedly connected to one end of the second limit metal mounting tube 35 away from the third limit metal mounting plate 31. A second liquid storage metal box 391 is arranged on one side of the third limit metal mounting plate 31 facing the deformable metal lifting plate 32, the second liquid storage metal box 391 is fixedly connected to the third limit metal mounting plate 31, and several metal heat exchange fins 392 are arranged at intervals on one side of the second liquid storage metal box 391 away from the third limit metal mounting plate 31, and the metal heat exchange fins 392 are fixedly connected to the second liquid storage metal box 391; In another embodiment, to make the functions of the deformable lifting mechanism 3 more diverse, in this embodiment, preferably, a first liquid storage metal box 36 is arranged on one side of the second liquid storage metal box 391 away from the deformable metal lifting plate 32, several first hollow infusion hoses 38 for conveying coolant to the first liquid storage metal box 36 are arranged at one end of the second liquid storage metal box 391, and several second hollow infusion hoses 393 for conveying coolant to the second liquid storage metal box 391 are arranged at one end of the first liquid storage metal box 36 away from the first hollow infusion hose 38. The interiors of the first liquid storage metal box 36 and the second liquid storage metal box 391 are both filled with coolant, and the coolant is water. A metal ventilation and cooling pipe 37 is arranged on one side of the second liquid storage metal box 391 facing the first liquid storage metal box 36, the metal ventilation and cooling pipe 37 penetrates through the first liquid storage metal box 36 and is fixedly connected to the first liquid storage metal box 36. A second deformable protection plate 33 is arranged on one side of the deformable metal lifting plate 32 away from the third limit metal mounting plate 31. The second deformable protection plate 33 is a rubber plate, and the lithium battery is cushioned and shock-absorbed by the second deformable protection plate 33 during use. The second deformable protection plate 33 is fixedly connected to the deformable metal lifting plate 32.
[0022] Working principle and usage process of the present invention: Before use, adjust the position of the adjustable metal lifting plate 32 according to the size of the lithium battery, so that the adjustable metal lifting plate 32 can cooperate with the first elastic sealing airbag plate 27 to clamp and fix the lithium battery. When adjusting, loosen the second limit adjusting screw 30 with a screwdriver, and then the position of the adjustable metal lifting plate 32 can be adjusted. After adjustment, tighten the second limit adjusting screw 30 to reliably support and fix the adjustable metal lifting plate 32. Then, install the deformable lifting mechanism 3 at the bottom of the sealed metal box 1, and at this time, fix the first liquid storage metal box 36 in a suitable position; Then, put the lithium battery into the sealed metal box 1, and then install the deformable sealing mechanism 2. After installation, turn the first limit adjusting screw 23 to move the limit metal adjusting plate 22 towards the direction close to the first limit metal mounting plate 20, so that the air pressure in the sealed metal box 1 decreases. At this time, the external atmospheric pressure will press the second limit metal mounting plate 24, thereby enhancing the sealing effect of the device and effectively avoiding air leakage of the device. And because the air pressure in the sealed metal box 1 decreases, at this time, both the first elastic sealing airbag plate 27 and the second elastic sealing airbag plate 29 expand, and the sealing effect of the device is further improved through the expanded first elastic sealing airbag plate 27 and second elastic sealing airbag plate 29; When in use, cool the inside of the sealed metal box 1 through the second liquid storage metal box 391. When the temperature of the coolant rises, the first liquid storage metal box 36 arranged outside the sealed metal box 1 can cool the coolant in the second liquid storage metal box 391 through the cooperation of the first hollow infusion hose 38 and the second hollow infusion hose 393. And when the device moves, the external air can pass through the metal ventilation and cooling pipe 37, so that the metal ventilation and cooling pipe 37 cooperates with the air flow to cool the first liquid storage metal box 36 by air cooling, so that the second liquid storage metal box 391 can maintain an efficient cooling state for a long time and improve its cooling effect; Thus, through the mutual cooperation of multiple structures, the air pressure in the sealed metal box 1 is adjusted to make the inside of the sealed metal box 1 in a negative pressure state, so as to avoid air leakage of the sealed metal box 1 due to too high internal air pressure. And the sealing effect of the device is enhanced by the external air pressure. Secondly, in the present invention, the negative pressure in the sealed metal box 1 causes the first elastic sealing airbag plate 27 and the second elastic sealing airbag plate 29 to expand, and the sealing effect of the sealing device is further improved through the expanded first elastic sealing airbag plate 27 and second elastic sealing airbag plate 29. In addition, the present invention can be applied to lithium batteries of different models, making the applicable range of the sealing device wider. Moreover, the present invention can cool the lithium battery, making the functions of the sealing device more abundant. And the present invention has a simple structure and is convenient to use.
[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.
[0024] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A sealing device for a lithium battery, comprising a sealed metal box, characterized in that: The open end of the sealed metal box is provided with a deformable sealing mechanism, and the end of the sealed metal box away from the deformable sealing mechanism is provided with a deformable lifting mechanism for supporting and cooling the lithium battery, the deformable sealing mechanism includes a second limiting metal mounting plate, a limiting metal connection is provided on the side of the second limiting metal mounting plate facing the sealed metal box, the limiting metal connection is slidably connected to the sealed metal box, a first elastic sealing airbag plate is provided on the side of the limiting metal mounting plate away from the second limiting metal mounting plate, the first elastic sealing airbag plate is fixedly connected to the limiting metal connection, and a first limiting metal mounting plate is provided on the side of the second limiting metal mounting plate away from the sealed metal box. A metal mounting plate, a first limiting metal mounting plate is fixedly connected with the second limiting metal mounting plate, a first limiting metal mounting tube is arranged on the side of the first limiting metal mounting plate facing the sealed metal box, the first limiting metal mounting tube passes through the second limiting metal mounting plate, the limiting metal connection and the first elastic sealing airbag plate, the first limiting metal mounting tube is fixedly connected with the second limiting metal mounting plate, a limiting metal pressure regulating plate is also arranged on the side of the first limiting metal mounting plate facing the sealed metal box for cooperating with the first limiting metal mounting tube to seal the open end of the sealed metal box, and the limiting metal pressure regulating plate is sealingly and slidingly connected with the first limiting metal mounting tube.
2. The sealing device for a lithium battery according to claim 1, characterized in that: The limiting metal pressure regulating plate is rotatably connected to the side of the first limiting metal mounting plate, and a limiting metal support column corresponding to the first limiting adjustment screw is arranged on the side of the second limiting metal mounting plate away from the sealing metal box. The limiting metal support column penetrates the first limiting metal mounting plate, is fixedly connected to the first limiting metal mounting plate, and is threadedly connected to the first limiting adjustment screw.
3. The sealing device for a lithium battery according to claim 2, characterized in that: A deformable protective sealing ring is provided on the side of the first limiting metal mounting plate facing the sealed metal box, which is used to cooperate with the limiting metal pressure regulating plate to seal the first limiting metal mounting tube. The deformable protective sealing ring is embedded in the middle part of the side of the limiting metal pressure regulating plate. A second elastic sealing airbag plate is provided on the side of the limiting metal pressure regulating plate away from the first limiting metal mounting plate. The second elastic sealing airbag plate is fixedly connected to the limiting metal pressure regulating plate.
4. The sealing device for a lithium battery according to claim 3, characterized in that: The deformable lifting mechanism includes a third limiting metal mounting plate, which is fixedly connected to the sealing metal box, an adjustable metal lifting plate is provided on the side of the third limiting metal mounting plate facing the deformable sealing mechanism, a plurality of second limiting metal mounting tubes are provided at both ends of the third limiting metal mounting plate, an end of the second limiting metal mounting tube away from the third limiting metal mounting plate is slidably connected to an adjustable supporting metal plate for supporting the adjustable metal lifting plate, and an end of the second limiting metal mounting tube away from the third limiting metal mounting plate is threadedly connected to a plurality of second limiting adjustment screws for fixing the adjustable supporting metal plate.
5. The sealing device for a lithium battery according to claim 4, characterized in that: A second liquid storage metal box is arranged on the side of the third limiting metal mounting plate facing the adjustable metal lifting plate, and the second liquid storage metal box is fixedly connected to the third limiting metal mounting plate. A plurality of metal heat exchange fins are arranged at intervals on the side of the second liquid storage metal box away from the third limiting metal mounting plate, and the metal heat exchange fins are fixedly connected to the second liquid storage metal box.
6. The sealing device for a lithium battery according to claim 5, characterized in that: A first liquid storage metal box is arranged on the side of the second liquid storage metal box away from the adjustable metal lifting plate, a plurality of first hollow infusion hoses for conveying cooling liquid to the first liquid storage metal box are arranged at one end of the second liquid storage metal box, and a plurality of second hollow infusion hoses for conveying cooling liquid to the second liquid storage metal box are arranged at one end of the first liquid storage metal box away from the first hollow infusion hose.
7. The sealing device for a lithium battery according to claim 6, characterized in that: A metal ventilation and cooling pipe is arranged on the side of the second liquid storage metal box facing the first liquid storage metal box, the metal ventilation and cooling pipe runs through the first liquid storage metal box, the metal ventilation and cooling pipe is fixedly connected to the first liquid storage metal box, and a second deformable protective plate is arranged on the side of the adjustable metal lifting plate away from the third limiting metal mounting plate, and the second deformable protective plate is fixedly connected to the adjustable metal lifting plate.
8. The sealing device for a lithium battery according to any one of claims 1 to 7, characterized in that: The sealed metal box is also provided with a plurality of first deformable protective plates for anti-slip and shock-absorbing functions at one end away from the deformable sealing mechanism. The plurality of first deformable protective plates are spaced apart at both ends of the lower surface of the sealed metal box, and the sealed metal box is fixedly connected to the first deformable protective plates.