Solid-state lithium battery pack with protection function

Abstract

The invention relates to the technical field of solid-state lithium batteries, and discloses a solid-state lithium battery pack with a protection function, the solid-state lithium battery pack comprises a lithium battery main body, the lithium battery main body is sleeved with a protection frame, one end of the protection frame is slidably connected with an insertion plate, and the top and the bottom of the protection frame are fixedly connected with connecting frame assemblies; a plurality of heat dissipation plates distributed at equal intervals are rotationally connected to the inner side of the connecting frame assembly, a connecting pipeline is fixedly connected to one side of the connecting frame assembly, and a mounting frame is fixedly connected to one side of the protective frame. According to the solid-state lithium battery pack with the protection function, when the lithium battery main body is in a low-temperature environment, the heat dissipation plate can be rotated to a horizontal state, so that a cavity is formed among the heat dissipation plate, the connecting frame assembly and the protection frame, and then the cavity is subjected to air exhaust through the vacuum pump, so that an approximately vacuum environment is formed in the cavity; therefore, a heat preservation effect is achieved, and the lithium battery main body is protected to a certain extent, so that the lithium battery main body is not easily influenced by low temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-state lithium batteries, and particularly to a solid-state lithium battery pack with a protection function. Background Art

[0002] Solid-state lithium batteries, as a member of the lithium battery family, their core difference lies in the state of the electrolyte. Compared with the liquid or gel electrolytes used in traditional lithium batteries, solid-state lithium batteries innovatively use solid electrolytes. This change not only endows solid-state lithium batteries with higher safety, but also significantly improves their energy density, making them have better performance.

[0003] For example, the patent with the patent authorization announcement number CN219979752U discloses a solid-state lithium battery with a high-temperature explosion-proof protection structure, including a protective shell. A positioning seat is fixedly connected to the bottom end inside the protective shell, and a lithium battery body is installed inside the positioning seat. A puncturing mechanism is arranged inside the protective shell, and there are two groups of puncturing mechanisms, which are located on the left and right sides of the lithium battery body; a connecting component and an end cover are arranged at the upper end of the protective shell, and the protective shell is connected to the end cover through the connecting component. A fixing component is arranged inside the end cover, and the fixing component is used to fix the upper end of the lithium battery body. An electrode post is fixedly connected to the upper end of the lithium battery body, and the upper end of the electrode post penetrates through the end cover. This solid-state lithium battery with a high-temperature explosion-proof protection structure is provided with a puncturing mechanism. When the lithium battery body bulges, the bulging part of the lithium battery body can be quickly punctured under the cooperation of the puncturing mechanism, so as to facilitate the pressure relief of the lithium battery body, effectively reducing the risk of explosion of the lithium battery.

[0004] The above solid-state lithium battery pack still has certain defects: When the solid-state lithium battery pack is placed in a low-temperature environment, the ion conduction rate in the solid electrolyte will significantly slow down. This change directly leads to the inhibition of the chemical reaction activity inside the battery. Therefore, the discharge rate and charging efficiency of the solid-state lithium battery pack generally show a downward trend at low temperatures. This not only limits the ability of the battery to quickly release and store energy, but also significantly weakens its overall performance. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a solid-state lithium battery pack with a protection function, enabling the lithium battery main body to have a certain protection function and not being easily affected by low temperatures.

[0006] To achieve the above object, the present invention provides the following technical solution: a solid-state lithium battery pack with a protection function, including a lithium battery main body, an outer protection frame is sleeved on the lithium battery main body, one end of the protection frame is slidably connected with a plug board, connection frame components are fixedly connected to both the top and bottom of the protection frame, a plurality of equally spaced heat dissipation plates are rotatably connected inside the connection frame components, a connection pipe is fixedly connected to one side of the connection frame components, an installation frame is fixedly connected to one side of the protection frame, a vacuum pump is fixedly connected to the installation frame, and the connection pipe is communicated with the air inlet of the vacuum pump.

[0007] Further, the connection frame component includes a right end plate, a left end plate, a front side plate and a rear side plate. The right end plate, the left end plate, the front side plate and the rear side plate are all fixedly connected to the protection frame. The right end plate, the left end plate, the front side plate and the rear side plate are distributed in a rectangle. The connection pipe is fixedly connected to the right end plate. A slot matching the plug board is opened at the end of the protection frame. Fixing grooves are opened on both sides of the protection frame. A fixing bolt is slidably connected inside the fixing groove, and the fixing bolt is threadedly connected to the plug board.

[0008] Further, a motor is fixedly connected to the outer wall of the right end plate. A rotating shaft is fixedly connected to the middle position of the heat dissipation plate. Sprockets are fixedly connected to one end of the rotating shaft and the output end of the motor respectively. A chain meshing with the sprockets is sleeved outside the sprockets.

[0009] Further, grooves are respectively opened at the top and bottom of both ends of the heat dissipation plate. Elastic sealing strips are fixedly connected inside the two grooves. Heat conduction plates are fixedly connected to both the top and bottom of the protection frame. The side wall of the heat conduction plate abuts against the heat dissipation plate.

[0010] Further, a storage groove is opened inside the front side plate. A wiping frame is slidably connected inside the storage groove. A placement groove is opened on the side of the rear side plate away from the front side plate. A pulling rod is slidably connected inside the placement groove. The pulling rod is fixedly connected to the wiping frame.

[0011] Further, installation grooves are opened at both the upper and lower ends of the side of the protection frame away from the front side plate. An installation plate is slidably connected inside the installation groove. The installation plate matches the rear side plate. Hook blocks matching the rear side plate are fixedly connected to both ends of the top of the installation plate.

[0012] Further, sliding grooves are opened at both ends below the installation plate. Sliders are slidably connected inside the sliding grooves. A positioning rod is slidably connected to the middle position of the slider. Both ends of the positioning rod are fixedly connected to both ends of the slider respectively. An elastic member is sleeved at the end of the positioning rod. One end of the elastic member is fixedly connected to the slider, and the other end of the elastic member is fixedly connected to the end of the sliding groove. Card slots matching the sliders are opened at both ends of the installation groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: For this solid-state lithium battery pack with a protection function, when the lithium battery main body is in a low-temperature environment, the heat dissipation plate can be rotated to a horizontal state, so that a cavity is formed between the heat dissipation plate, the connection frame assembly and the protection frame. Then, the cavity is evacuated by a vacuum pump to create an environment close to vacuum inside the cavity, thereby achieving a heat preservation effect, and further forming a certain protection for the lithium battery main body, making the lithium battery main body not easily affected by low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a schematic structural diagram of the whole of the present invention in another state; Figure 3 is a partial cross-sectional view of the protection frame of the present invention; Figure 4 is a schematic structural diagram of the heat dissipation plate of the present invention; Figure 5 is a schematic structural diagram of the mounting plate of the present invention.

[0015] In the figure: 1, lithium battery main body; 2, protection frame; 3, slot; 4, plug board; 5, fixing bolt; 6, fixing groove; 7, right end plate; 8, left end plate; 9, front side plate; 10, rear side plate; 11, storage groove; 12, wiping frame; 13, pulling rod; 14, placing groove; 15, heat dissipation plate; 16, rotating shaft; 17, elastic sealing strip; 18, sprocket; 19, chain; 20, motor; 21, connecting pipe; 22, vacuum pump; 23, mounting frame; 24, mounting groove; 25, clamping groove; 26, mounting plate; 27, hanging block; 28, sliding groove; 29, positioning rod; 30, elastic member; 31, slider; 32, heat conducting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the 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.

[0017] Please refer to Figures 1-5 , a solid-state lithium battery pack with a protection function, including a lithium battery main body 1, a protection frame 2 is sleeved outside the lithium battery main body 1, a plug board 4 is slidably connected to one end of the protection frame 2, connection frame assemblies are fixedly connected to the top and bottom of the protection frame 2, a plurality of equally spaced heat dissipation plates 15 are rotatably connected to the inner side of the connection frame assemblies, a connection pipe 21 is fixedly connected to one side of the connection frame assemblies, a mounting frame 23 is fixedly connected to one side of the protection frame 2, a vacuum pump 22 is fixedly connected to the mounting frame 23, and the connection pipe 21 is communicated with the air inlet of the vacuum pump 22.

[0018] In the solid-state lithium battery pack with a protection function in the present invention, when the lithium battery main body 1 is in a low-temperature environment, the heat dissipation plate 15 can be rotated to a horizontal state, so that a cavity is formed among the heat dissipation plate 15, the connection frame assembly and the protection frame 2. Then, the cavity is evacuated by a vacuum pump 22 to form an environment close to vacuum inside the cavity. Since the heat conduction effect of the vacuum environment is poor, this cavity can play a certain heat preservation effect, thereby forming a certain protection for the lithium battery main body 1, making the lithium battery main body 1 not easily affected by low temperature. In addition, the structure of the lithium battery main body 1 in the present invention is similar to the solid-state lithium battery structure of a high-temperature explosion-proof protection structure disclosed in the patent with the patent authorization announcement number CN219979752U, so no further elaboration will be made here.

[0019] As Figure 1 、 Figure 2 and Figure 3 shown, the connection frame assembly includes a right end plate 7, a left end plate 8, a front side plate 9 and a rear side plate 10. The right end plate 7, the left end plate 8, the front side plate 9 and the rear side plate 10 are all fixedly connected to the protection frame 2. The right end plate 7, the left end plate 8, the front side plate 9 and the rear side plate 10 are distributed in a rectangle. The connection pipe 21 is fixedly connected to the right end plate 7. The end of the protection frame 2 is provided with a slot 3 matching the insertion plate 4. Fixed slots 6 are provided on both sides of the protection frame 2. A fixing bolt 5 is slidably connected inside the fixed slot 6. The fixing bolt 5 is threadedly connected to the insertion plate 4.

[0020] Specifically, when it is necessary to repair various electrical components inside the lithium battery main body 1, only the fixing bolt 5 needs to be removed, then the insertion plate 4 is pulled out from the slot 3, and then the lithium battery main body 1 can be taken out from inside the protection frame 2 to facilitate the repair inside the lithium battery main body 1.

[0021] As Figure 2 and Figure 4 shown, a motor 20 is fixedly connected to the outer wall of the right end plate 7. A rotating shaft 16 is fixedly connected to the middle position of the heat dissipation plate 15. A sprocket 18 is fixedly connected to one end of the rotating shaft 16 and the output end of the motor 20. A chain 19 meshing with the sprocket 18 is sleeved outside the sprocket 18.

[0022] Specifically, when it is necessary to rotate the heat dissipation plate 15, only the motor 20 needs to be started. The motor 20 will drive the sprocket 18 to rotate. The sprocket 18 fixedly connected to the motor 20 will push the chain 19 to move, and the chain 19 will push the sprocket 18 fixedly connected to the heat dissipation plate 15 to rotate, and the sprocket 18 will drive the heat dissipation plate 15 to rotate.

[0023] As Figure 2 、 Figure 3 and Figure 4As shown, grooves are respectively formed at the top and bottom ends of the heat dissipation plate 15, elastic sealing strips 17 are fixedly connected inside both of the two grooves, heat conduction plates 32 are fixedly connected to the top and bottom of the protection frame 2, and the side wall of the heat conduction plate 32 abuts against the heat dissipation plate 15.

[0024] Specifically, when the heat dissipation plate 15 is in a horizontal state, the elastic sealing strip 17 will improve the sealing performance of the connection between adjacent heat dissipation plates 15, making it easier to evacuate the cavity between the heat dissipation plate 15, the connection frame assembly and the protection frame 2 into a vacuum state. When the heat dissipation plate 15 is in a vertical state, the heat dissipation plate 15 will abut against the heat conduction plate 32, thereby achieving a certain heat dissipation effect.

[0025] As Figure 3 shown, a storage groove 11 is formed inside the inner side of the front side plate 9, a wiping frame 12 is slidably connected inside the storage groove 11, a placement groove 14 is formed on the side of the rear side plate 10 away from the front side plate 9, a pulling rod 13 is slidably connected inside the placement groove 14, and the pulling rod 13 is fixedly connected to the wiping frame 12.

[0026] Specifically, when it is necessary to wipe and clean the heat dissipation plate 15 and the protection frame 2, it is only necessary to first rotate the heat dissipation plate 15 to a horizontal state, and then pull the wiping frame 12 through the pulling rod 13, so as to wipe and clean the inner sides of the protection frame 2 and the heat dissipation plate 15 through the wiping frame 12.

[0027] As Figure 3 and Figure 5 shown, installation grooves 24 are respectively formed at the upper and lower ends of the side of the protection frame 2 away from the front side plate 9, mounting plates 26 are slidably connected inside the installation grooves 24, the mounting plates 26 are matched with the rear side plate 10, and hook blocks 27 matched with the rear side plate 10 are fixedly connected to both ends of the top of the mounting plates 26.

[0028] Specifically, after the mounting plate 26 is inserted into the installation groove 24, the mounting plate 26 will block the gap position of the rear side plate 10, so that the cavity between the heat dissipation plate 15, the connection frame assembly and the protection frame 2 maintains a certain sealing effect. At the same time, the hook blocks 27 will be stuck on the rear side plate 10, making the connection between the mounting plate 26 and the rear side plate 10 tighter.

[0029] As Figure 5 shown, sliding grooves 28 are respectively formed at both ends below the mounting plate 26, sliders 31 are slidably connected inside the sliding grooves 28, a positioning rod 29 is slidably connected to the middle position of the slider 31, both ends of the positioning rod 29 are fixedly connected to both ends of the slider 31, an elastic member 30 is sleeved at the end of the positioning rod 29, one end of the elastic member 30 is fixedly connected to the slider 31, the other end of the elastic member 30 is fixedly connected to the end of the sliding groove 28, and clamping grooves 25 matched with the sliders 31 are respectively formed at both ends of the installation groove 24.

[0030] Specifically, when fixedly installing the mounting plate 26, only need to first toggle the slider 31 to align the slider 31 with the card slot 25, then insert the mounting plate 26 into the mounting groove 24, and finally release the slider 31. Under the action of the elastic member 30, the elastic member 30 will pull the slider 31 to move, so that the slider 31 is staggered from the entrance position of the card slot 25. The whole installation process is simple, convenient and easy to operate.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A solid-state lithium battery pack with a protective function, comprising a lithium battery body (1), characterized in that: The lithium battery body (1) is externally sleeved with a protective frame (2), one end of the protective frame (2) is slidably connected to a plug plate (4), the top and bottom of the protective frame (2) are both fixedly connected to a connection frame assembly, the inner side of the connection frame assembly is rotatably connected to a plurality of equidistantly distributed heat sinks (15), one side of the connection frame assembly is fixedly connected to a connection pipe (21), one side of the protective frame (2) is fixedly connected to a mounting frame (23), a vacuum pump (22) is fixedly connected to the mounting frame (23), and the connection pipe (21) is connected to an air inlet of the vacuum pump (22), and the connection pipe (21) is connected to an air inlet of the vacuum pump (22).

2. A solid-state lithium battery pack with a protective function according to claim 1, characterized in that: The connecting frame assembly comprises a right side end plate (7), a left side end plate (8), a front side plate (9) and a rear side plate (10); the right side end plate (7), the left side end plate (8), the front side plate (9) and the rear side plate (10) are all fixedly connected to the protective frame (2); the right side end plate (7), the left side end plate (8), the front side plate (9) and the rear side plate (10) are distributed in a rectangular shape; the connecting pipe (21) is fixedly connected to the right side end plate (7); a slot (3) matching the plug plate (4) is provided at the end of the protective frame (2); fixing grooves (6) are provided on both sides of the protective frame (2); fixing bolts (5) are slidably connected inside the fixing grooves (6); and the fixing bolts (5) are threadedly connected to the plug plate (4).

3. A solid-state lithium battery pack with protection function according to claim 2, characterized in that: The outer wall of the right end plate (7) is fixedly connected to a motor (20); the middle position of the heat sink (15) is fixedly connected to a rotating shaft (16); one end of the rotating shaft (16) and the output end of the motor (20) are both fixedly connected to a sprocket (18); and the outer portion of the sprocket (18) is sleeved with a chain (19) meshing therewith.

4. The solid-state lithium battery pack with protection function according to claim 1, characterized in that: Grooves are respectively provided at the top and bottom of both ends of the heat dissipation plate (15), elastic sealing strips (17) are fixedly connected inside the two grooves, and heat conduction plates (32) are fixedly connected at the top and bottom of the protection frame (2), and the side walls of the heat conduction plates (32) abut against the heat dissipation plate (15).

5. The solid-state lithium battery pack with protection function according to claim 2, characterized in that: A storage groove (11) is provided on the inner side of the front side plate (9), and a wiping frame (12) is slidably connected to the interior of the storage groove (11). A placement groove (14) is provided on a side of the rear side plate (10) away from the front side plate (9), and a pulling rod (13) is slidably connected to the interior of the placement groove (14), and the pulling rod (13) is fixedly connected to the wiping frame (12).

6. A solid-state lithium battery pack with a protective function according to claim 2, characterized in that: The upper and lower ends of the protective frame (2) away from the front side plate (9) are provided with mounting grooves (24), the interior of the mounting groove (24) is slidably connected with a mounting plate (26), the mounting plate (26) matches the rear side plate (10), and both ends of the top of the mounting plate (26) are fixedly connected with hook blocks (27) matching the rear side plate (10).

7. A solid-state lithium battery pack with protection function according to claim 6, characterized in that: Both ends of the lower side of the mounting plate (26) are provided with a slide groove (28), the interior of the slide groove (28) is slidably connected to a slider (31), a positioning rod (29) is slidably connected to the middle position of the slider (31), the two ends of the positioning rod (29) are respectively fixedly connected to the two ends of the slider (31), an elastic member (30) is sleeved on the end of the positioning rod (29), one end of the elastic member (30) is fixedly connected to the slider (31), and the other end of the elastic member (30) is fixedly connected to the end of the slide groove (28), and both ends of the mounting groove (24) are provided with a card slot (25) matching the slider (31).

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