A sealed and safe lithium-ion battery for unmanned vessels

Abstract

The present invention relates to the technical field of batteries, and specifically relates to a sealed and safe lithium-ion battery for unmanned boats, which includes a lithium-ion battery cell and a sealed outer casing wrapped around the outside of the lithium-ion battery cell. A sandwich cavity is provided inside the sealed outer casing, and a control seat body is integrally and fixedly arranged on the surface of the sealed outer casing. An active cavity and a traction detection cavity are provided in the control seat body, and the cross-sectional areas of the active cavity and the traction detection cavity are equal. The sealed and safe lithium-ion battery for unmanned boats according to the present invention can extract the water outside the boat to dissipate heat from the battery through the cooperation of the active cavity, the traction detection cavity and the pumping structure, and can realize the real-time detection of the battery seal during the process of extracting water for heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of batteries, and in particular to a sealed and safe lithium-ion battery for unmanned ships. Background Art

[0002] Lithium-ion batteries are a type of secondary battery that relies primarily on the movement of lithium ions between the positive and negative electrodes to work. When lithium-ion batteries are charged and discharged at high power, they will emit a certain amount of heat. The heat accumulation and high temperature will accelerate the chemical reactions inside the battery and the volatilization of the electrolyte, resulting in a shortened battery life and a significant increase in the probability of thermal runaway or even fire. When unmanned boats are powered by lithium-ion batteries, in order to reduce heat dissipation costs, river water is pumped through water pumps to cool the batteries. The cooling water flows along the inner cavity of the battery shell, taking away the heat from the battery. However, if the shell is damaged during the cooling process, it is difficult to detect in time, which can easily lead to greater failure problems. Summary of the invention

[0003] The object of the present invention is to provide a sealed and safe lithium-ion battery for unmanned ships to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: A sealed and safe lithium-ion battery for unmanned ships, comprising a lithium-ion battery cell and a sealed shell wrapped and arranged outside the lithium-ion battery cell, wherein an interlayer cavity is provided inside the sealed shell, a control seat body is integrally fixedly provided on the surface of the sealed shell, an active cavity and a traction detection cavity are provided in the control seat body, the cross-sectional areas of the active cavity and the traction detection cavity are equal, the active cavity and the traction detection cavity are communicated with the interlayer cavity respectively, a secondary piston is provided in the traction detection cavity, the secondary piston is in sealing contact with the inner wall surface of the traction detection cavity, a reset spring is connected to one side of the secondary piston, the reset spring applies elastic tension to the secondary piston, a first distance sensor is embedded and installed inside the control seat body, the first distance sensor is used to detect the position of the secondary piston, a pumping structure with a position detection function is provided inside and outside the active cavity, a micro solenoid valve is provided outside the interlayer cavity, and when the pumping structure extracts liquid in the interlayer cavity, the micro solenoid valve is controlled to be closed.

[0005] The pumping structure includes a limit ring, a one-way liquid valve, a limit end cavity and a separation groove. The limit ring is arranged inside the active cavity. The one-way liquid valve is embedded and fixed in the limit ring. The one-way liquid valve allows the liquid in the interlayer cavity to flow unidirectionally toward the active cavity. The end of the active cavity is connected to form a limit end cavity, and a separation groove is provided inside the control seat body.

[0006] A primary piston is arranged in the active cavity. The primary piston is in sealed contact with the inner wall surface of the active cavity. A piston cavity is formed in the primary piston. An annular eaves is arranged on one side of the piston cavity close to the one-way liquid valve. A liquid through-hole is formed through the surface of the piston cavity on the side far from the one-way liquid valve.

[0007] A dynamic inner disk is arranged in the piston cavity. A liquid passage groove is formed at the edge position of the dynamic inner disk. A compression spring is arranged on the side of the dynamic inner disk far from the annular eaves. The compression spring applies an elastic pressure to the dynamic inner disk, so that the dynamic inner disk is in sealed fit with the annular eaves. A synchronous connecting rod is fixedly arranged on the primary piston. One end of the synchronous connecting rod is hermetically inserted through the end wall of the limit end cavity and extends into the partition sliding groove.

[0008] A slider body is arranged in the partition sliding groove in a sliding and limiting manner. The slider body is fixedly installed with the synchronous connecting rod. An embedding blind hole is formed on the upper surface of the slider body. A synchronous pin shaft is inserted into the embedding blind hole. A driving main rod is fixedly arranged on the upper part of the synchronous pin shaft. The movement of the driving main rod drives the slider body and the synchronous connecting rod to move.

[0009] A second distance sensor is embedded and installed on the inner wall surface of the partition sliding groove. The second distance sensor is used for detecting the position of the slider body. A liquid discharge cavity channel is formed inside the control seat body. A threaded docking hole is formed on the surface of the control seat body. The limit end cavity is communicated with the threaded docking hole through the liquid discharge cavity channel.

[0010] A rotary vibration inner shaft is inserted inside the synchronous connecting rod. The rotary vibration inner shaft is coaxially arranged with the synchronous connecting rod, and the rotary vibration inner shaft and the synchronous connecting rod are in sealed contact with each other. A corrugated rack is formed inside the partition sliding groove. The corrugated rack is arranged parallel to the length direction of the partition sliding groove.

[0011] A rotary vibration dial is fixedly arranged at the end of the rotary vibration inner shaft. An L-shaped support plate is fixedly arranged on the surface of the slider body. A dial spring is fixedly arranged on the L-shaped support plate. The dial spring applies an elastic pressure to the rotary vibration dial, so that the rotary vibration dial is in contact with the corrugated rack. When the slider body drives the rotary vibration dial to move along the length direction of the partition sliding groove, the cooperation of the corrugated rack and the dial spring can drive the rotary vibration inner shaft to rotate and vibrate reciprocally.

[0012] A matching transverse edge is fixedly arranged at the end of the rotary vibration inner shaft located inside the piston cavity. A matching tooth groove is formed at the center position of the surface of the dynamic inner disk. When the dynamic inner disk is in contact with the annular eaves, the matching transverse edge and the matching tooth groove are separated from each other. When the dynamic inner disk is pushed open by the water pressure and separated from the annular eaves, the matching transverse edge will be inserted into the matching tooth groove, and the rotation of the matching transverse edge drives the matching tooth groove to rotate.

[0013] A stabilizing connecting rod is fixedly arranged inside the interlayer cavity, an interconnected inner hole is formed inside the control seat body, and the active cavity and the traction detection cavity are respectively communicated with the interlayer cavity through the interconnected inner holes corresponding to them.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The lithium-ion battery for unmanned ships of the present invention, through the cooperation of the active cavity, the traction detection cavity and the pumping structure, etc., can extract the water outside the ship to dissipate heat from the battery, and can realize the real-time detection of the battery's sealing performance during the process of extracting water for heat dissipation. When the sealing shell is damaged and the interlayer cavity leaks, it can be detected in the first time, so as to control the unmanned ship to return for repair.

[0016] Through the cooperation of the corrugated rack, the rotary vibration bracket and the rotary vibration inner shaft and other structures set in the present invention, the mating transverse edge and the mating tooth groove can be separated during the process of the first-stage piston extracting water flow, ensuring the contact seal between the dynamic inner disc and the annular eaves. And during the process of the first-stage piston discharging water, the mating transverse edge and the mating tooth groove are engaged, thereby driving the dynamic inner disc to rotate and vibrate, so that when the liquid flows through the liquid groove, the accumulation of attachments in front of the liquid groove is reduced, and the probability of the problem of incomplete closing caused by the inclusion of attachments when the dynamic inner disc and the annular eaves contact and close next time is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of a three-dimensional half-section of the present invention.

[0019] Figure 3 It is Figure 2 An enlarged schematic diagram of area A in

[0020] Figure 4 It is a schematic diagram of a three-dimensional half-section of the control seat body of the present invention.

[0021] Figure 5 It is Figure 4 An enlarged schematic diagram of area B in

[0022] Figure 6 It is Figure 5 An enlarged schematic diagram of area C in

[0023] Figure 7 It is Figure 5 An enlarged schematic diagram of area D in

[0024] Figure 8 It is a front view of the three-dimensional half-section of the control seat body of the present invention.

[0025] Figure 9 It isFigure 8 Schematic diagram of enlarged E area.

[0026] In the figure: 1. Lithium-ion battery cell; 2. Sealed housing; 3. Interlayer cavity; 4. Control seat body; 5. Active cavity; 6. Traction detection cavity; 7. Secondary piston; 8. Reset tension spring; 9. First distance sensor; 10. Micro solenoid valve; 501. Limit ring part; 502. One-way liquid valve; 503. Limit end cavity; 504. Separation chute; 505. Primary piston; 506. Annular eaves; 507. Piston cavity; 508. Liquid passage hole; 509. Dynamic inner disc; 510. Liquid passage trough; 511. Compression spring; 512. Synchronous connecting rod; 513. Slide block body; 514. Embedded blind hole; 515. Synchronous pin shaft; 516. Driving main rod; 517. Second distance sensor; 518. Liquid discharge cavity channel; 519. Thread docking hole; 520. Vibration inner shaft; 521. Corrugated rack; 522. Vibration dial; 523. L-shaped support plate; 524. Dial spring; 525. Matching horizontal edge; 526. Matching tooth groove; 301. Stable connecting rod; 401. Interconnected inner hole. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a sealed and safe lithium-ion battery for an unmanned ship, including a lithium-ion battery cell 1 and a sealed housing 2 wrapped around the outside of the lithium-ion battery cell 1. The sealed housing 2 is made of aluminum, such as Figure 3As shown in the figure, an interlayer cavity 3 is provided inside the sealed housing 2. A control seat body 4 is integrally and fixedly arranged on the surface of the sealed housing 2. An active cavity 5 and a traction detection cavity 6 are provided in the control seat body 4. The cross-sectional areas of the active cavity 5 and the traction detection cavity 6 are equal. The active cavity 5 and the traction detection cavity 6 are respectively communicated with the interlayer cavity 3. A secondary piston 7 is arranged in the traction detection cavity 6. The secondary piston 7 is in sealing contact with the inner wall surface of the traction detection cavity 6. A return spring 8 is connected to one side of the secondary piston 7. The return spring 8 applies an elastic pulling force to the secondary piston 7. A first distance sensor 9 is embedded and installed inside the control seat body 4. The first distance sensor 9 is used to detect the position of the secondary piston 7. A pumping structure with a position detection function is arranged inside and outside the active cavity 5. A micro solenoid valve 10 is communicated with the outside of the interlayer cavity 3. When the pumping structure extracts the liquid in the interlayer cavity 3, the micro solenoid valve 10 is controlled to close; the micro solenoid valve 10 is a small electric control water valve, which is used to control the opening and closing of the water inlet source.

[0029] The pumping structure includes a limit ring part 501, a one-way liquid valve 502, a limit end cavity 503 and a partition chute 504. The limit ring part 501 is arranged inside the active cavity 5. The one-way liquid valve 502 is embedded and fixed in the limit ring part 501. The one-way liquid valve 502 enables the liquid in the interlayer cavity 3 to flow unidirectionally into the active cavity 5. A limit end cavity 503 is communicated and opened at the end of the active cavity 5. A partition chute 504 is provided inside the control seat body 4. A primary piston 505 is arranged in the active cavity 5. The primary piston 505 is in sealing contact with the inner wall surface of the active cavity 5. A piston cavity 507 is provided in the primary piston 505. An annular eaves 506 is arranged on one side of the piston cavity 507 close to the one-way liquid valve 502. A liquid through hole 508 is penetrated and opened on the surface of the piston cavity 507 far from the one-way liquid valve 502.

[0030] A dynamic inner disk 509 is arranged in the piston cavity 507. A through liquid groove 510 is formed at the edge position of the dynamic inner disk 509. A compression spring 511 is arranged on the side of the dynamic inner disk 509 away from the annular eaves 506. The compression spring 511 applies an elastic pressure to the dynamic inner disk 509, so that the dynamic inner disk 509 is in sealed contact with the annular eaves 506. A synchronous connecting rod 512 is fixedly arranged on the first-stage piston 505. One end of the synchronous connecting rod 512 is hermetically inserted through the end wall of the limiting end cavity 503 and extends into the partition sliding groove 504. A slider body 513 is slidably limited in the partition sliding groove 504. The slider body 513 is fixedly installed with the synchronous connecting rod 512. An embedded blind hole 514 is formed on the upper surface of the slider body 513. A synchronous pin shaft 515 is inserted in the embedded blind hole 514. A driving main rod 516 is fixedly arranged on the upper part of the synchronous pin shaft 515. The movement of the driving main rod 516 drives the slider body 513 and the synchronous connecting rod 512 to move. The driving main rod 516 is used for synchronously controlling multiple groups of batteries. Only one group of battery structures is shown in the example of this application. The reciprocating movement of the driving main rod 516 can be driven by devices such as a linear motor.

[0031] A second distance sensor 517 is embedded and installed on the inner wall surface of the partition sliding groove 504. The second distance sensor 517 is used for detecting the position of the slider body 513. A liquid discharge cavity channel 518 is formed inside the control seat body 4. A threaded docking hole 519 is formed on the surface of the control seat body 4. The limiting end cavity 503 is communicated with the threaded docking hole 519 through the liquid discharge cavity channel 518.

[0032] A vibrating inner shaft 520 is inserted inside the synchronous connecting rod 512. The vibrating inner shaft 520 is coaxially arranged with the synchronous connecting rod 512, and there is sealed contact between the vibrating inner shaft 520 and the synchronous connecting rod 512. A corrugated rack 521 is formed inside the partition sliding groove 504. The corrugated rack 521 is arranged parallel to the length direction of the partition sliding groove 504. A vibrating dial 522 is fixedly arranged at the end of the vibrating inner shaft 520. An L-shaped support plate 523 is fixedly arranged on the surface of the slider body 513. A dial spring 524 is fixedly arranged on the L-shaped support plate 523. The dial spring 524 applies an elastic pressure to the vibrating dial 522, so that the vibrating dial 522 is in contact with the corrugated rack 521. When the slider body 513 drives the vibrating dial 522 to move along the length direction of the partition sliding groove 504, through the cooperation of the corrugated rack 521 and the dial spring 524, the vibrating inner shaft 520 can be driven to rotate and vibrate reciprocally.

[0033] One end of the vibrating inner shaft 520 located inside the piston cavity 507 is fixedly provided with a mating transverse edge 525, and a mating tooth groove 526 is provided at the center position of the surface of the dynamic inner disk 509; when the dynamic inner disk 509 contacts the annular eaves 506, the mating transverse edge 525 and the mating tooth groove 526 are separated from each other; when the dynamic inner disk 509 is pushed open by water pressure and separated from the annular eaves 506, the mating transverse edge 525 will be inserted into the mating tooth groove 526, and the rotation of the mating transverse edge 525 drives the rotation of the mating tooth groove 526.

[0034] A stabilizing connecting rod 301 is fixedly arranged inside the sandwich cavity 3, an intercommunicating inner hole 401 is arranged inside the control seat body 4, and the active cavity 5 and the traction detection cavity 6 are respectively communicated with the sandwich cavity 3 through the corresponding intercommunicating inner holes 401.

[0035] For the sealed and safe lithium-ion battery for unmanned boats of the present invention, when in use, river water is connected to the micro solenoid valve 10 through the pre-filter device, and the threaded docking hole 519 is connected to the drainage pipe. Since multiple groups of lithium-ion batteries are usually arranged side by side in a stacked manner, the slider body 513 in multiple groups of lithium-ion batteries is driven to move synchronously by driving the telescopic movement of the driving main rod 516.

[0036] As Figure 5 and Figure 7 As shown in, the second distance sensor 517 emits infrared light to the L-shaped support plate 523, and the position of the slider body 513 is detected in real time by detecting the distance between the second distance sensor 517 and the L-shaped support plate 523. Similarly, the first distance sensor 9 detects the distance between the first distance sensor 9 and the secondary piston 7 to realize the real-time detection of the position of the secondary piston 7.

[0037] As Figure 5As shown in the figure, when the driving main rod 516 moves to the right, the micro solenoid valve 10 is first controlled to close. The driving main rod 516 drives the slider body 513 to move to the right through the synchronous pin shaft 515, and the slider body 513 drives the synchronous connecting rod 512 and the first-stage piston 505 to move to the right. When the first-stage piston 505 moves to the right, the dynamic inner disk 509 will be in close contact with the annular eaves 506 under the negative pressure and the elastic pressure of the compression spring 511, thus playing a sealing role. At this time, the liquid in the sandwich cavity 3 is pumped into the active cavity 5 through the one-way liquid valve 502. Since the micro solenoid valve 10 is closed and the sandwich cavity 3 is in a sealed state, the liquid in the traction detection cavity 6 will enter the sandwich cavity 3 for equal amount of replenishment. The second-stage piston 7 moves to the left, stretching the return spring 8. Since the cross-sectional areas of the active cavity 5 and the traction detection cavity 6 are the same, the moving distance of the first-stage piston 505 to the right is equal to the moving distance of the second-stage piston 7 to the left. The moving distances of the first-stage piston 505 and the second-stage piston 7 are detected by the second distance sensor 517 and the first distance sensor 9 respectively. When the moving distances of the two are equal, it indicates that the sandwich cavity 3 has good sealing performance. When the leftward moving distance of the second-stage piston 7 is less than the rightward moving distance of the first-stage piston 505, there is a leakage problem in the sandwich cavity 3.

[0038] When the driving main rod 516 moves to the right in place, the micro solenoid valve 10 is controlled to open. At this time, under the reset elastic tension of the return spring 8, the second-stage piston 7 resets and moves to the right, so that the liquid in the sandwich cavity 3 is replenished and flows back into the traction detection cavity 6, and the external water flow enters the sandwich cavity 3 through the micro solenoid valve 10. When the driving main rod 516 moves to the left, it drives the first-stage piston 505 to move to the left. Due to the one-way restriction of the one-way liquid valve 502 on the water flow, the water pressure will push the dynamic inner disk 509 open at this time, and it flows to the limit end cavity 503 through the liquid groove 510 and the liquid through hole 508, and is discharged through the drain cavity channel 518 and the threaded docking hole 519.

[0039] When the driving main rod 516 moves to the right again, the above cycle is repeated, which can realize water flow pumping for cooling while continuously monitoring the sealing performance of the sandwich cavity 3.

[0040] As Figure 7 shown in the figure, during the process of the slider body 513 reciprocating along the length direction of the partition chute 504, the rotary vibration bracket 522 is in extrusion contact with the corrugated rack 521, continuously moving down intermittently, and rising and resetting continuously through the elastic support of the bracket elastic piece 524, so that the rotary vibration inner shaft 520 is in a reciprocating rotary vibration motion state.

[0041] As Figure 6As shown, when the first-stage piston 505 moves rightward, the dynamic inner disc 509 comes into pressing contact with the annular eaves 506. At this time, the mating transverse rib 525 is separated from the mating tooth groove 526, and the rotational vibration of the rotary vibration inner shaft 520 will not affect the dynamic inner disc 509. The dynamic inner disc 509 can maintain good relative static pressing seal with the annular eaves 506. When the first-stage piston 505 moves leftward, the water pressure pushes the dynamic inner disc 509 open, causing the dynamic inner disc 509 to move rightward. At this time, the mating transverse rib 525 will insert into the mating tooth groove 526, and the rotational vibration of the rotary vibration inner shaft 520 will drive the dynamic inner disc 509 to rotate and vibrate. When water flows through the through-flow groove 510, due to the high-frequency rotational vibration of the through-flow groove 510, it is very difficult for attachments to adhere and stay in front of the through-flow groove 510, thereby reducing the probability of problems such as incomplete closing caused by attachment entrapment when the dynamic inner disc 509 and the annular eaves 506 come into contact and close next time.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed and safe lithium-ion battery for an unmanned boat, comprising a lithium-ion battery cell (1) and a sealed outer casing (2) wrapped around the outside of the lithium-ion battery cell (1), characterized in that: An interlayer cavity (3) is formed inside the sealed housing (2). A control base body (4) is integrally and fixedly arranged on the surface of the sealed housing (2). An active cavity (5) and a traction detection cavity (6) are formed in the control base body (4). The cross-sectional areas of the active cavity (5) and the traction detection cavity (6) are equal. The active cavity (5) and the traction detection cavity (6) are respectively communicated with the interlayer cavity (3). A secondary piston (7) is arranged in the traction detection cavity (6). The secondary piston (7) is in sealed contact with the inner wall surface of the traction detection cavity (6). A return spring (8) is connected to one side of the secondary piston (7). The return spring (8) applies an elastic pulling force to the secondary piston (7). A first distance sensor (9) is embedded and installed inside the control base body (4). The first distance sensor (9) is used to detect the position of the secondary piston (7). A pumping structure with a position detection function is arranged inside and outside the active cavity (5). A micro solenoid valve (10) is communicated with the outside of the interlayer cavity (3). When the pumping structure extracts the liquid in the interlayer cavity (3), the micro solenoid valve (10) is controlled to close; The pumping structure includes a limit ring part (501), a one-way liquid valve (502), a limit end cavity (503) and a partition chute (504). The limit ring part (501) is arranged inside the active cavity (5). The one-way liquid valve (502) is embedded and fixed in the limit ring part (501). The one-way liquid valve (502) enables the liquid in the sandwich cavity (3) to flow unidirectionally into the active cavity (5). A limit end cavity (503) is communicated and opened at the end of the active cavity (5). A partition chute (504) is opened inside the control seat body (4). A primary piston (505) is arranged in the active cavity (5). The primary piston (505) is in sealed contact with the inner wall surface of the active cavity (5). A piston cavity (507) is opened in the primary piston (505). An annular eaves (506) is arranged on one side of the piston cavity (507) close to the one-way liquid valve (502). A liquid through hole (508) is penetrated and opened on the surface of the piston cavity (507) far from the one-way liquid valve (502). A dynamic inner disc (509) is arranged in the piston cavity (507). A liquid passing groove (510) is opened at the edge position of the dynamic inner disc (509). A compression spring (511) is arranged on one side of the dynamic inner disc (509) far from the annular eaves (506). The compression spring (511) exerts an elastic pressure on the dynamic inner disc (509) to make the dynamic inner disc (509) in sealed fit with the annular eaves (506). A synchronous connecting rod (512) is fixedly arranged on the primary piston (505). One end of the synchronous connecting rod (512) is hermetically inserted through the end wall of the limit end cavity (503) and extends into the partition chute (504). A slider body (513) is slidably limited in the partition chute (504). The slider body (513) is fixedly installed with the synchronous connecting rod (512). An embedding blind hole (514) is opened on the upper surface of the slider body (513). A synchronous pin shaft (515) is inserted in the embedding blind hole (514). A driving main rod (516) is fixedly arranged on the upper part of the synchronous pin shaft (515). The movement of the driving main rod (516) drives the slider body (513) and the synchronous connecting rod (512) to move. A second distance sensor (517) is embedded and installed on the inner wall surface of the partition chute (504). The second distance sensor (517) is used to detect the position of the slider body (513). A liquid discharge cavity channel (518) is opened inside the control seat body (4). A threaded docking hole (519) is opened on the surface of the control seat body (4). The limit end cavity (503) is communicated with the threaded docking hole (519) through the liquid discharge cavity channel (518).The inside of the synchronous connecting rod (512) is inserted with a vibration inner shaft (520). The vibration inner shaft (520) is coaxially arranged with the synchronous connecting rod (512), and there is a sealed contact between the vibration inner shaft (520) and the synchronous connecting rod (512). A corrugated rack (521) is arranged inside the partition chute (504), and the corrugated rack (521) is arranged parallel to the length direction of the partition chute (504); a vibration dial (522) is fixedly arranged at the end of the vibration inner shaft (520), an L-shaped support plate (523) is fixedly arranged on the surface of the slider body (513), a dial elastic piece (524) is fixedly arranged on the L-shaped support plate (523), and the dial elastic piece (524) applies an elastic pressure to the vibration dial (522) so that the vibration dial (522) contacts the corrugated rack (521). When the slider body (513) drives the vibration dial (522) to move along the length direction of the partition chute (504), through the cooperation of the corrugated rack (521) and the dial elastic piece (524), the vibration inner shaft (520) can be driven to rotate and vibrate reciprocally; a matching transverse edge (525) is fixedly arranged at one end of the vibration inner shaft (520) located inside the piston cavity (507), and a matching tooth groove (526) is arranged at the center position of the surface of the dynamic inner disc (509); when the dynamic inner disc (509) contacts the annular eaves (506), the matching transverse edge (525) and the matching tooth groove (526) are separated from each other; when the dynamic inner disc (509) is pushed open by the water pressure and separated from the annular eaves (506), the matching transverse edge (525) will be inserted into the matching tooth groove (526), and the rotation of the matching transverse edge (525) drives the matching tooth groove (526) to rotate.; 2. The sealed and safe lithium-ion battery for unmanned ships according to claim 1, wherein: A stabilizing link (301) is fixedly arranged inside the interlayer cavity (3). An intercommunicating inner hole (401) is formed inside the control base body (4). The active cavity (5) and the traction detection cavity (6) are respectively communicated with the interlayer cavity (3) through the corresponding intercommunicating inner holes (401).

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