A solid-state lithium battery with heat dissipation structure for marine propulsion

Abstract

This invention belongs to the field of lithium battery technology, and specifically mentions a solid-state lithium battery with a heat dissipation structure for marine propulsion. It includes a mounting outer shell, a sealing cover plate fixedly connected to the mounting outer shell, and a fixed inner shell fixedly connected to the mounting outer shell. The sealing cover plate and the fixed inner shell together form a sealed cavity. The fixed inner shell is provided with several encapsulation shells and a heat dissipation cavity. A lithium battery module is installed within each encapsulation shell on the fixed inner shell. The terminals of the lithium battery module are located within the sealed cavity between the fixed inner shell and the sealing cover plate. This invention isolates the lithium battery module from sea breeze by placing it within the encapsulation shells, thereby reducing its probability of corrosion. Simultaneously, sealing the lithium battery module within the sealed cavity between the sealing cover plate and the fixed inner shell prevents sea breeze from blowing onto the terminals of the lithium battery module, thus preventing corrosion of the terminals.

Description

Technical Field

[0001] This invention relates to the field of lithium battery technology, and in particular to a solid-state lithium battery with a heat dissipation structure for marine propulsion. Background Technology

[0002] During ship operation, high temperature, high humidity and high frequency vibration are usually present. Such harsh environment places extremely high demands on the power batteries inside. At present, solid-state lithium batteries are widely used in the shipbuilding field because they use solid electrolytes instead of flammable liquid electrolytes, which can effectively avoid risks such as leakage and thermal runaway.

[0003] During ship voyages, power batteries need to discharge at high rates for extended periods, leading to a rapid increase in internal heat generation. Therefore, existing solid-state lithium batteries for ships are equipped with liquid-cooled or air-cooled heat dissipation systems. When using air-cooling, the high humidity and salt spray in the ship's environment can cause corrosion to the lithium battery surface and damage its structure when the salt spray gas comes into contact with the lithium battery for a long time. Furthermore, if the salt spray gas comes into contact with the lithium battery terminals for an extended period, the chloride ions in the salt spray can penetrate the metal surface protective layer, triggering electrochemical corrosion. This can result in rust spots, peeling, or reduced mechanical strength on the terminal surface. Corrosion products or salt crystal layers can also increase contact resistance, affecting current transmission efficiency and, in extreme cases, causing localized overheating or connection interruption. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the object of the present invention is to provide a solid-state lithium battery with a heat dissipation structure for marine power.

[0005] The technical solution is as follows: A solid-state lithium battery with a heat dissipation structure for marine propulsion includes a mounting shell, a sealing cover plate fixedly connected to the mounting shell by bolts, a fixed inner shell fixedly connected inside the mounting shell, the sealing cover plate and the upper side of the fixed inner shell forming a sealed cavity, a plurality of encapsulation shells provided on the fixed inner shell, a heat dissipation cavity provided on the fixed inner shell, a plurality of air vents provided on both sides of the fixed inner shell, all of the air vents communicating with the heat dissipation cavity, lithium battery modules installed in the encapsulation shells on the fixed inner shell, two adjacent lithium battery modules being electrically connected, and the terminals of the lithium battery modules being located in the sealed cavity between the fixed inner shell and the sealing cover plate;

[0006] All of the lithium battery modules are divided into several columns arranged in an array, and the lithium battery modules in adjacent columns are staggered.

[0007] The mounting housing is slidably connected to an array of first air guide plates and an array of second air guide plates. The first air guide plate and the corresponding second air guide plate are respectively located on both sides of a corresponding column of lithium battery modules. A tension spring is provided between the first air guide plate and the corresponding second air guide plate, and a gap is left between the first air guide plate and the corresponding encapsulation shell.

[0008] As an improvement to the above solution, heat dissipation protrusions are fixedly connected to the opposite sides of the first air guide plate and the corresponding second air guide plate.

[0009] As an improvement to the above solution, an array of heat dissipation fins are fixedly connected to the outer side of the encapsulation shell, and a number of heat dissipation fins are fixedly connected to the first air guide plate and the corresponding second air guide plate. The heat dissipation fins are in pressure contact with the heat dissipation fins between the first air guide plate and the corresponding second air guide plate.

[0010] As an improvement to the above solution, both the first air guide plate and the second air guide plate are fixedly connected to a mounting block, and the mounting block is fixedly connected to a magnetic block. The fixed inner shell is equipped with an array of electromagnetic modules, which are located between the corresponding first air guide plate and the second air guide plate, and the magnetic block and the corresponding electromagnetic module are magnetically attracted to each other.

[0011] As an improvement to the above solution, an array of central air guide plates are slidably connected inside the fixed inner shell, and the central air guide plates are located between the adjacent first air guide plate and the adjacent second air guide plate.

[0012] As an improvement to the above solution, the fixed inner shell is equipped with symmetrically distributed drive push rods, and the power output ends of the symmetrically distributed drive push rods are fixedly connected to a drive frame. The drive frame is slidably connected to the fixed inner shell, and the central air guide plate is fixedly connected to a connecting rod. The drive frame is used to push the connecting rod to move.

[0013] As an improvement to the above solution, several friction protrusions are provided on both sides of the central air guide plate.

[0014] As an improvement to the above solution, the central air guide plate is fixedly connected to a fixing block, the fixing block is fixedly connected to a magnetic block two, an elastic element is provided between the magnetic block two and the fixed inner shell, and a number of pairs of electromagnetic modules two are fixedly connected in an array inside the fixed inner shell, with the magnetic block two located between adjacent pairs of electromagnetic modules two.

[0015] The present invention has the following advantages: By placing the lithium battery module inside the encapsulation shell, the present invention isolates the lithium battery module from contact with the sea breeze, thereby reducing the probability of it being corroded by the sea breeze. At the same time, the lithium battery module is sealed in the sealed cavity between the sealing cover and the fixed inner shell, preventing the sea breeze from blowing onto the terminals of the lithium battery module, thereby preventing the terminals of the lithium battery module from being corroded.

[0016] The present invention surrounds a row of lithium battery modules with a first air guide plate and a corresponding second air guide plate, and guides the sea breeze entering the heat dissipation cavity so that the sea breeze blows on the side of the encapsulation shell, thereby enhancing the heat dissipation effect on the lithium battery modules.

[0017] This invention increases the distance between the first and corresponding second air guide plates and the side of the corresponding row of packaging shells by driving the first air guide plate and the corresponding second air guide plate to move in opposite directions, thereby increasing the space for sea breeze flow, reducing the speed of sea breeze flow, and reducing the heat loss of the lithium battery module, thus achieving the effect of heat preservation for the lithium battery module.

[0018] This invention guides the sea breeze through the central air guide plate, thereby achieving the effect of heat dissipation for the corresponding first and second air guide plates. Furthermore, by driving the central air guide plate to move relative to the corresponding first and second air guide plates, the invention removes corrosive impurities from the first and second air guide plates. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 A three-dimensional structural cross-sectional view of the outer casing, sealing cover, and fixed inner casing of the present invention;

[0021] Figure 3 An exploded three-dimensional view of the outer casing, sealing cover, and fixed inner casing of the present invention.

[0022] Figure 4 This is a top view of the three-dimensional structure of the lithium battery module of the present invention;

[0023] Figure 5 This is a top view of the three-dimensional structure of the first and second air guide plates of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the central air guide plate of the present invention;

[0025] Figure 7 This is an exploded three-dimensional view of the components at the first air guide plate of the present invention;

[0026] Figure 8 This is an exploded three-dimensional view of the components at the central air guide plate of the present invention;

[0027] Figure 9 For the present invention Figure 2 A schematic diagram of the three-dimensional structure at point A in the middle;

[0028] Figure 10 For the present invention Figure 3 A schematic diagram of the three-dimensional structure at point B.

[0029] The labels in the diagram are as follows: 1-Installation shell, 2-Sealing cover, 3-Fixed inner shell, 301-Encapsulation shell, 302-Heat dissipation cavity, 303-Air vent, 4-Lithium battery module, 21-First air guide plate, 22-Second air guide plate, 31-Heat dissipation protrusion, 41-Heat dissipation fins, 42-Heat dissipation fins, 51-Installation block, 52-Magnetic block one, 53-Electromagnetic module one, 61-Central air guide plate, 71-Drive push rod, 72-Drive frame, 73-Connecting rod, 81-Friction protrusion, 91-Fixed block, 92-Magnetic block two, 93-Electromagnetic module two. Detailed Implementation

[0030] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0031] Investigations revealed that most existing marine lithium batteries are cooled by air during use. However, due to the high humidity and salt spray content of the sea air, contact between the sea air and the lithium battery terminals can cause corrosion. Furthermore, prolonged contact between the sea air and the lithium battery surface can also cause corrosion, leading to battery damage and affecting its use.

[0032] Example 1

[0033] This embodiment discloses a solid-state lithium battery with a heat dissipation structure for marine power, which has the function of protecting the terminals of the lithium battery, thereby reducing the probability of corrosion of the terminals of the lithium battery.

[0034] Please refer to the following: Figures 1-9The device includes a mounting outer shell 1, with rectangular holes on both the front and rear sides. These rectangular holes connect to an external heat dissipation system, which is used solely to facilitate the flow of sea air into the mounting outer shell 1. A sealing cover 2 is bolted to the mounting outer shell 1. Sealing gaskets are placed on opposite sides of both the mounting outer shell 1 and the sealing cover 2 to improve the seal between them. A fixed inner shell 3 is fixedly connected inside the mounting outer shell 1. The sealing cover 2 and the upper side of the fixed inner shell 3 together form a sealed cavity. Several [unclear - possibly related to a specific feature or feature] are provided on the fixed inner shell 3. A package 301 is provided, and a fixed inner shell 3 is provided with a heat dissipation cavity 302. Several air vents 303 are provided on both the front and rear sides of the fixed inner shell 3. One air vent 303 is used for air intake, and the other air vent 303 is used for air exhaust. All air vents 303 are connected to the heat dissipation cavity 302. A lithium battery module 4 is installed inside the package 301 on the fixed inner shell 3. The fixed inner shell 3 protects and encloses the lithium battery module 4, reducing the probability of surface corrosion of the lithium battery module 4. Adjacent lithium battery modules 4 are electrically connected (e.g., ...). Figure 2 As shown), several temperature sensors (not shown in the figure) are installed inside the fixed inner shell 3. All temperature sensors are evenly distributed and detect the temperature inside the adjacent areas of the encapsulation shell 301. The terminals of the lithium battery module 4 are located in the sealed cavity between the fixed inner shell 3 and the sealing cover 2, thus shielding the terminals of the lithium battery module 4 from sea breeze and reducing the probability of corrosion. All lithium battery modules 4 are divided into five columns in an array, and adjacent columns of lithium battery modules 4 are staggered (e.g., ...). Figure 2 and Figure 4 As shown in the figure, this distribution is used to guide the sea breeze entering the heat dissipation cavity 302 and increase the degree of turbulence of the sea breeze in the heat dissipation cavity 302.

[0035] Please refer to the following: Figures 4-8The housing 1 is slidably connected to six first air guide plates 21 and six second air guide plates 22 arranged in an array. The first air guide plates 21 and the second air guide plates 22 are staggered. The first air guide plates 21 and the corresponding second air guide plates 22 are located on the left and right sides of the corresponding row of lithium battery modules 4, respectively. A tension spring is provided between the first air guide plates 21 and the corresponding second air guide plates 22. The first air guide plates 21 and the corresponding second air guide plates 22 are used to guide part of the air entering the heat dissipation cavity 302. A gap is left between the first air guide plates 21 and the corresponding encapsulation shell 301, and the gap provides airflow for the sea breeze. The space allows the sea breeze to flow in close contact with the corresponding row of lithium battery modules 4, improving the heat dissipation effect on the corresponding row of lithium battery modules 4. The first air guide plate 21 and the corresponding second air guide plate 22 form a gas flow channel. A portion of all the air vents 303 on the same side are connected to the gas flow channel formed by the first air guide plate 21 and the corresponding second air guide plate 22, thereby allowing the sea breeze to dissipate heat from the lithium battery modules 4. The other portion of all the air vents 303 on the same side are connected to the gas flow channel between the first air guide plate 21 and the adjacent second air guide plate 22 (this gas flow channel is located between two adjacent rows of lithium battery modules 4).

[0036] Please refer to the following: Figure 5 and Figures 7-9 Five heat dissipation protrusions 31 are fixedly connected to the far sides of the first air guide plate 21 and the corresponding second air guide plate 22 in a linear array to increase the surface area of ​​the first air guide plate 21 and the second air guide plate 22, so as to facilitate the dissipation of heat on them.

[0037] Please refer to the following: Figures 5-7 An array of heat dissipation fins 41 are fixedly connected to the outer side of the encapsulation shell 301 to absorb and release the heat of the encapsulation shell 301, thereby enhancing the heat dissipation effect on the lithium battery module 4. A number of heat dissipation fins 42 are fixedly connected to the first air guide plate 21 and the corresponding second air guide plate 22. The heat dissipation fins 42 are used to absorb the heat of the heat dissipation fins 41. Both the heat dissipation fins 41 and the heat dissipation fins 42 are thin metal sheets with elasticity. The heat dissipation fins 41 and the corresponding heat dissipation fins 42 between the first air guide plate 21 and the second air guide plate 22 are in pressure contact. The heat dissipation fins 41 and the corresponding heat dissipation fins 42 are pressed against each other, causing them to vibrate, thereby facilitating the shaking off of impurities.

[0038] The working principle of a solid-state lithium battery with a heat dissipation structure for marine propulsion in this embodiment is as follows:

[0039] During the use of this lithium battery, all temperature sensors on the inner casing 3 are turned on to detect the temperature of all lithium battery modules 4. When the detected temperature exceeds the suitable temperature range of the lithium battery module 4, the heat dissipation system is turned on, and then the outside sea breeze enters the heat dissipation system.

[0040] Sea air enters the gas flow channel between the corresponding first air guide plate 21 and the corresponding second air guide plate 22 through the rectangular hole of the outer casing 1 and the air vent 303 on the front side of the fixed inner casing 3. (See below for reference.) Figure 6 The components inside are described, and taking the example of sea breeze blowing from back to front, the sea breeze enters the gas flow channel and continues to flow forward. After the sea breeze comes into contact with the last side of the encapsulation shell 301, the sea breeze flows to the left and right sides in opposite directions under the guidance of the first air guide plate 21 and the corresponding second air guide plate 22. At this time, the sea breeze flows along the gap between the first air guide plate 21, the corresponding second air guide plate 22 and the encapsulation shell 301. During this process, the sea breeze blows on the outer surface of the encapsulation shell 301, cools it down, and transfers the heat of the corresponding lithium battery module 4 through the encapsulation shell 301, thereby achieving heat dissipation of the lithium battery module 4.

[0041] As the sea breeze flows along the gaps (along the side of the encapsulation shell 301), the flow area decreases, thereby increasing the flow velocity of the sea breeze and improving the efficiency of heat dissipation for the encapsulation shell 301.

[0042] After the sea breeze flows to the front of the encapsulation shell 301, the sea breeze on the left and right sides begins to flow in opposite directions and forms a countercurrent, which mixes the sea breeze on the left and right sides, improves the uniformity of the sea breeze temperature distribution, and facilitates uniform heat dissipation of the encapsulation shell 301 in the middle.

[0043] After the sea breeze collides with the airflow, it continues to flow forward along the gap and comes into contact with the central encapsulation shell 301. Then, part of the sea breeze flows forward along the gap, and another part flows to the right along the gap, dissipating heat from the central encapsulation shell 301 and the corresponding lithium battery module 4 during the process.

[0044] As the sea breeze continues to flow, when it reaches the front of the central packaging shell 301, the two parts of the sea breeze collide and mix again. Then, one part of the sea breeze flows to the left along the gap, and the other part flows forward along the gap. During this process, the two parts of the sea breeze work together to dissipate heat from the front packaging shell 301 and the corresponding lithium battery module 4.

[0045] After the two sections of sea air flow to the front of the front packaging shell 301, the two sections of sea air flow in opposite directions and along the gas flow channels of the first air guide plate 21 and the corresponding second air guide plate 22, and then are discharged through the corresponding air outlet 303. In this way, the heat dissipation operation of one row of packaging shells 301 and the corresponding lithium battery module 4 is completed. The heat dissipation operation of the remaining rows of packaging shells 301 and the corresponding lithium battery module 4 is the same as the above process.

[0046] During the process of the sea breeze passing through the lithium battery, the lithium battery module 4 is located inside the corresponding encapsulation shell 301 and does not come into contact with the sea breeze. This reduces the probability of the outer surface of the lithium battery module 4 being eroded by the sea breeze. At the same time, the terminals of the lithium battery module 4 are located in the sealed cavity between the sealing cover plate 2 and the fixed inner shell 3 and do not come into contact with the wind entering the heat dissipation cavity 302, thereby preventing the terminals of the lithium battery module 4 from being eroded by the sea breeze.

[0047] During the flow of sea breeze, the sea breeze passes over the heat dissipation fins 41 and fins 42, facilitating the dissipation of heat from the encapsulation shell 301 and the lithium battery module 4. However, the sea breeze can cause slight corrosion to the heat dissipation fins 41 and fins 42, resulting in corrosion impurities on their surfaces. These impurities adhering to the surfaces of the heat dissipation fins 41 and fins 42 can affect their heat dissipation efficiency. To mitigate this impact, the following steps are taken:

[0048] During the ship's voyage, the ship will sway due to the action of the waves. At this time, the ship will move all the first air guide plates 21 and second air guide plates 22 left and right by the outer shell 1 and the fixed inner shell 3. This will cause the first air guide plates 21 and second air guide plates 22 to slide relative to the fixed inner shell 3. The tension springs between the first air guide plates 21 and the corresponding second air guide plates 22 will be stretched accordingly. The first air guide plates 21 and second air guide plates 22 will drive the heat dissipation fins 42 on them to move synchronously. The heat dissipation fins 42 and the corresponding heat dissipation fins 41 will slide relative to each other and squeeze each other (the two deflect each other to store force). Through the relative squeezing and friction between the two, the impurities on them will be removed. After the two lose contact, the heat dissipation fins 42 and the heat dissipation fins 41 will vibrate, which will facilitate the removal of impurities on their surfaces.

[0049] Example 2

[0050] During ship navigation, the external temperature changes (due to diurnal temperature variations or regional environmental factors). When navigating to low-temperature areas (where low temperature refers to the optimal operating temperature for lithium batteries), the activity of lithium ions inside the battery decreases, resulting in the discharge capacity not being fully released within the normal voltage range and a significant drop in power output. The following solutions are proposed to address this issue:

[0051] This embodiment discloses a solid-state lithium battery for marine power. Based on Embodiment 1, it also has the function of heat preservation for the lithium battery to prevent the lithium battery from failing to work due to excessively low temperature.

[0052] Please refer to the following: Figure 4 , Figure 9 and Figure 10The first air guide plate 21 and the second air guide plate 22 are both fixedly connected to the mounting block 51. The upper side of the mounting block 51 is fixedly connected to the magnetic block 52. The fixed inner shell 3 is equipped with six electromagnetic modules 53 arranged in an array. The electromagnetic modules 53 are located between the corresponding first air guide plate 21 and the second air guide plate 22. The magnetic block 52 and the corresponding electromagnetic module 53 are magnetically attracted to each other. When the electromagnetic module 53 is energized, the electromagnetic module 53 generates magnetic attraction or magnetic repulsion, thereby controlling the movement of the corresponding first air guide plate 21 and the second air guide plate 22, so that the first air guide plate 21 and the corresponding second air guide plate 22 move towards each other or away from each other. The newly introduced parts in this section are all located on the front side of the fixed inner shell 3. The newly introduced parts in this section are also provided on the rear side of the fixed inner shell 3 in this invention, thus ensuring the smooth movement of the first air guide plate 21 and the second air guide plate 22.

[0053] The working principle of a solid-state lithium battery for marine propulsion in this embodiment is as follows:

[0054] During the ship's voyage, the temperature sensor inside the fixed inner shell 3 continuously monitors the temperature of the adjacent lithium battery module 4. When the temperature falls below a suitable range, all electromagnetic modules 53 (described below as parts on the front side of the fixed inner shell 3) are activated. The electromagnetic modules 53 generate magnetic repulsion. Figure 9 For example, under the magnetic repulsion of the electromagnetic module 53, the two corresponding magnetic blocks 52 move in opposite directions. The two magnetic blocks 52 drive the first air guide plate 21 and the second air guide plate 22 to move respectively. The first air guide plate 21 and the second air guide plate 22 move in opposite directions, and the tension spring between the first air guide plate 21 and the second air guide plate 22 is stretched, so that the gap between the first air guide plate 21 and the left side of the corresponding encapsulation shell 301 gradually increases, and the gap between the second air guide plate 22 and the right side of the corresponding encapsulation shell 301 gradually increases. In this way, the flow space of the gaps on the left and right sides of the encapsulation shell 301 is increased, thereby reducing the speed of the sea breeze flowing in the gaps on the left and right sides of the encapsulation shell 301.

[0055] During the movement of the first air guide plate 21 and the second air guide plate 22, the distance between the first air guide plate 21 and the second air guide plate 22 and the front and rear sides of the corresponding encapsulation shell 301 does not change. Therefore, after the sea breeze flows into the gaps on the left and right sides of the encapsulation shell 301, the flow speed of the sea breeze decreases, reducing the amount of heat carried away from the encapsulation shell 301, thereby reducing the heat dissipation effect on the lithium battery module 4 and ensuring that the lithium battery module 4 is within a suitable temperature range.

[0056] When the temperature sensor inside the fixed inner shell 3 detects that the lithium battery module 4 is above the appropriate range, the electromagnetic module 53 is turned off. This causes the first air guide plate 21 and the corresponding second air guide plate 22 to move in opposite directions under the action of the tension spring between them until the first air guide plate 21 and the second air guide plate 22 are reset.

[0057] Example 3

[0058] This embodiment discloses a solid-state lithium battery with a heat dissipation structure for marine power. Based on embodiment 2, it also has the function of dissipating heat from the first air guide plate 21 and the second air guide plate 22, thereby improving the efficiency of heat dissipation of the lithium battery.

[0059] Please refer to the following: Figures 4-10 Six central air guide plates 61 are slidably connected within the fixed inner shell 3. The central air guide plates 61 are located between adjacent first air guide plates 21 and adjacent second air guide plates 22. The central air guide plates 61 separate the air passages 303 corresponding to the first air guide plates 21 and adjacent second air guide plates 22. The left and right sides of the central air guide plates 61 form gas flow channels with the adjacent first air guide plates 21 and adjacent second air guide plates 22, respectively, providing flow space for sea breeze. That is, sea breeze can enter the heat dissipation cavity 302 through the air passages 303. The central air guide plates 61 divert the sea breeze entering from the air passages 303, dividing the sea breeze into left and right parts, and causing the sea breeze to flow along the left and right sides of the central air guide plates 61. During the process of the sea breeze flowing along the gas flow channels, the sea breeze carries away the heat from the first air guide plates 21 and second air guide plates 22, thereby realizing the cooling operation of the first air guide plates 21 and second air guide plates 22.

[0060] Example 4

[0061] As sea breeze passes over the first air guide plate 21 and the second air guide plate 22, it causes slight corrosion to the surfaces of both plates, resulting in corrosion impurities and a decrease in their heat dissipation efficiency. Based on this problem, the following solution is proposed:

[0062] This embodiment discloses a solid-state lithium battery for marine power. Based on embodiment 3, it also has the function of cleaning impurities on the surface of the first air guide plate 21 and the corresponding second air guide plate 22, thereby ensuring the heat conduction efficiency of the first air guide plate 21 and the second air guide plate 22.

[0063] Please refer to the following: Figures 4-7 , Figure 9 and Figure 10The fixed inner shell 3 is equipped with two symmetrically distributed drive push rods 71. The drive push rods 71 ​​are existing electric push rods. The power output ends of the two drive push rods 71 ​​are fixedly connected to a drive frame 72. The drive frame 72 is composed of several round rods and several square frames, and the square frames and round rods are staggered. The drive frame 72 is slidably connected to the fixed inner shell 3. The middle air guide plate 61 is fixedly connected to a connecting rod 73. The drive frame 72 is used to push the connecting rod 73 to move in the front and back direction, and the connecting rod 73 is located in the square frame of the drive frame 72. The middle air guide plate 61 is provided with five grooves arranged in a linear array to receive the heat dissipation protrusions 31 on the corresponding first air guide plate 21 and the corresponding second air guide plate 22, so that the middle air guide plate 61 can fit with the corresponding first air guide plate 21 and the corresponding second air guide plate 22.

[0064] Please refer to the following: Figures 6-8 Several friction protrusions 81 are provided on both the left and right sides of the middle air guide plate 61. The friction protrusions 81 are used to increase the roughness of the surface of the middle air guide plate 61, so as to facilitate cleaning of the corresponding first air guide plate 21 and the corresponding second air guide plate 22.

[0065] The working principle of a solid-state lithium battery for marine propulsion in this embodiment is as follows:

[0066] During the ship's operation, impurities on the surfaces of the first guide vane 21 and the second guide vane 22 are cleaned periodically. When cleaning is required, the drive push rod 71 is activated, causing the power output end of the drive push rod 71 to move back and forth. The power output end of the drive push rod 71 drives the drive frame 72 to move back and forth. The drive frame 72 pushes all the connecting rods 73 on it to move. The connecting rods 73 drive the adjacent middle guide vane 61 to move. The middle guide vane 61 drives the friction protrusions 81 on it to move synchronously.

[0067] Simultaneously with activating the drive push rod 71, all electromagnetic modules 53 are activated, generating magnetic repulsion. This causes the corresponding two magnetic blocks 52 to move in opposite directions, which in turn drive the corresponding first air guide plate 21 and second air guide plate 22 to move in opposite directions (the tension spring between them is stretched). This continues until the first air guide plate 21 and second air guide plate 22 come into contact with the adjacent middle air guide plate 61, thus maintaining a constant magnetic repulsion force of the electromagnetic modules 53.

[0068] When the first air guide plate 21 and the second air guide plate 22 are in contact with the adjacent middle air guide plate 61, as the middle air guide plate 61 moves back and forth, the first air guide plate 21 and the second air guide plate 22 move relative to the adjacent middle air guide plate 61, and the friction protrusion 81 moves relative to the adjacent first air guide plate 21 and the second air guide plate 22, thus realizing the operation of scraping off impurities on the first air guide plate 21 and the second air guide plate 22.

[0069] After a single cleaning operation is completed, all the middle air guide plates 61 are reset by driving push rod 71, and all electromagnetic modules 53 are turned off. All the first air guide plates 21 and the second air guide plates 22 are reset under the action of their upper tension springs.

[0070] Example 5

[0071] This embodiment discloses a solid-state lithium battery with a heat dissipation structure for marine power. Based on embodiment 4, it also has the function of further dissipating heat from the first air guide plate 21 and the corresponding second air guide plate 22, thereby ensuring the heat conduction efficiency of the first air guide plate 21 and the second air guide plate 22.

[0072] Please refer to the following: Figure 9 and Figure 10 A fixing block 91 is fixedly connected to the upper side of the central air guide plate 61. A magnetic block 92 is fixedly connected to the fixing block 91. An elastic element, which is a spring, is provided between the magnetic block 92 and the fixed inner shell 3. Six pairs of electromagnetic modules 93 are fixedly connected in an array inside the fixed inner shell 3. The magnetic blocks 92 are located between adjacent pairs of electromagnetic modules 93. When the electromagnetic modules 93 are energized, they generate magnetic repulsion and drive the corresponding magnetic blocks 92 to move. The newly introduced parts are all located on the front side of the fixed inner shell 3. The newly introduced parts are also provided on the rear side of the fixed inner shell 3 in this invention, thus ensuring the smooth movement of the central air guide plate 61.

[0073] The working principle of a solid-state lithium battery with a heat dissipation structure for marine propulsion in this embodiment is as follows:

[0074] During the operation of the temperature sensor inside the fixed inner shell 3, when a temperature increase is detected in a certain area of ​​the lithium battery module 4, the temperatures of the first air guide plate 21 and the second air guide plate 22 in that area rise synchronously. Figure 10 For example, when the temperature of the second air guide plate 22 rises, the electromagnetic module 2 93 on the right is activated. The electromagnetic module 2 93 generates magnetic repulsion, which drives the magnetic block 2 92 to move to the left. The elastic element of the magnetic block 2 92 is stretched and stores force. The magnetic block 2 92 drives the middle air guide plate 61 to move to the left through the fixing block 91. At this time, the distance between the middle air guide plate 61 and the second air guide plate 22 increases, increasing the amount of sea air entering between the middle air guide plate 61 and the second air guide plate 22, thereby increasing the cooling effect on the second air guide plate 22. When the temperature of the second air guide plate 22 returns to the normal range, the electromagnetic module 2 93 is turned off. The magnetic block 2 92 resets under the action of its elastic element and drives the middle air guide plate 61 to reset. If the temperature of the first air guide plate 21 rises, the electromagnetic module 2 93 on the left is activated, which increases the distance between the first air guide plate 21 and the corresponding middle air guide plate 61, thereby cooling the first air guide plate 21.

[0075] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A solid-state lithium battery with a heat dissipation structure for marine propulsion, characterized in that, The device includes an outer casing (1), which is fixedly connected to a sealing cover plate (2) by bolts. A fixed inner casing (3) is fixedly connected inside the outer casing (1). The sealing cover plate (2) and the upper side of the fixed inner casing (3) together form a sealed cavity. The fixed inner casing (3) is provided with several encapsulation shells (301). The fixed inner casing (3) is provided with a heat dissipation cavity (302). Several air vents (303) are provided on both sides of the fixed inner casing (3). All the air vents (303) are connected to the heat dissipation cavity (302). A lithium battery module (4) is installed in the encapsulation shell (301) on the fixed inner casing (3). Two adjacent lithium battery modules (4) are electrically connected. The terminals of the lithium battery modules (4) are located in the sealed cavity between the fixed inner casing (3) and the sealing cover plate (2). All of the lithium battery modules (4) are divided into several columns in an array, and the lithium battery modules (4) in adjacent columns are staggered. The mounting housing (1) is slidably connected with an array of first air guide plates (21) and array of second air guide plates (22). The first air guide plate (21) and the corresponding second air guide plate (22) are respectively located on both sides of a corresponding column of lithium battery modules (4). A tension spring is provided between the first air guide plate (21) and the corresponding second air guide plate (22), and a gap is left between the first air guide plate (21) and the second air guide plate (22) and the corresponding encapsulation shell (301).

2. A solid-state lithium battery with a heat dissipation structure for marine propulsion according to claim 1, characterized in that, The first air guide plate (21) and the corresponding second air guide plate (22) are both fixedly connected to heat dissipation protrusions (31) on their opposite sides.

3. A solid-state lithium battery with a heat dissipation structure for marine propulsion according to claim 2, characterized in that, The outer side of the encapsulation shell (301) is fixedly connected with an array of heat dissipation fins (41). The first air guide plate (21) and the corresponding second air guide plate (22) are fixedly connected with a plurality of heat dissipation fins (42). The heat dissipation fins (41) are pressed into contact with the heat dissipation fins (42) between the corresponding first air guide plate (21) and second air guide plate (22).

4. A solid-state lithium battery with a heat dissipation structure for marine propulsion according to claim 3, characterized in that, The first air guide plate (21) and the second air guide plate (22) are both fixedly connected to the mounting block (51). The mounting block (51) is fixedly connected to the magnetic block (52). The fixed inner shell (3) is equipped with an array of electromagnetic modules (53). The electromagnetic module (53) is located between the corresponding first air guide plate (21) and the second air guide plate (22), and the magnetic block (52) and the corresponding electromagnetic module (53) are magnetically attracted to each other.

5. A solid-state lithium battery with a heat dissipation structure for marine propulsion according to claim 4, characterized in that, The fixed inner shell (3) is slidably connected with an array of central air guide plates (61), which are located between the adjacent first air guide plate (21) and the adjacent second air guide plate (22).

6. A solid-state lithium battery with a heat dissipation structure for marine propulsion according to claim 5, characterized in that, The fixed inner shell (3) is equipped with symmetrically distributed drive push rods (71). The power output ends of the symmetrically distributed drive push rods (71) are fixedly connected to a drive frame (72). The drive frame (72) is slidably connected to the fixed inner shell (3). The central air guide plate (61) is fixedly connected to a connecting rod (73). The drive frame (72) is used to push the connecting rod (73) to move.

7. A solid-state lithium battery with a heat dissipation structure for marine propulsion according to claim 6, characterized in that, Several friction protrusions (81) are provided on both sides of the central air guide plate (61).

8. A solid-state lithium battery with a heat dissipation structure for marine propulsion according to claim 7, characterized in that, The central air guide plate (61) is fixedly connected to a fixing block (91), the fixing block (91) is fixedly connected to a magnetic suction block two (92), an elastic element is provided between the magnetic suction block two (92) and the fixed inner shell (3), and a number of pairs of electromagnetic modules two (93) are fixedly connected in an array inside the fixed inner shell (3), and the magnetic suction block two (92) is located between adjacent pairs of electromagnetic modules two (93).

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