Lithium battery
By setting up a waterproof mechanism and heat dissipation hole on the inner shell of the lithium battery, and using the combination of the deflector, water absorption component and baffle, the problem of difficulty in taking into account both the heat dissipation performance and the waterproof performance of the lithium battery during use is solved, and effective waterproofing and heat dissipation of the lithium battery in heavy rain or water flow is achieved.
Patent Information
- Application Number
- CN202420368108.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-02-27
AI Technical Summary
It is difficult to take into account both the heat dissipation and waterproof performance during use, especially in heavy rain or water flowing.
A lithium battery is designed, using a waterproof mechanism and multiple heat dissipation holes on the inner shell, and the balance between waterproofing and heat dissipation is achieved through the cooperation of the deflector, water absorption assembly and baffle.
Through the arrangement of the waterproof mechanism and heat dissipation hole, the lithium battery can maintain good heat dissipation performance while having waterproof function, preventing water from penetrated into the inner shell and protecting the main body of the lithium battery.
Smart Images
Figure CN222826510U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery. Background Art
[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive / negative electrode material and non-aqueous electrolyte solution. The volume energy and weight energy of lithium battery are more than 3 times higher than those of lead-acid battery. Lithium battery is smaller in size and lighter in weight. Lithium battery using lithium iron phosphate positive electrode material can achieve more than 3000 cycles. Lithium battery is better. Lithium-ion battery is light in weight and high in energy, but safe and cost-effective.
[0003] During the actual installation and use of existing lithium batteries, due to their wide range of use and environment, for example, when used in some vehicles, although some lithium batteries are provided with heat sinks or heat dissipation holes and other auxiliary heat dissipation structures to accelerate heat dissipation, when heavy rain or water flow occurs, lithium batteries are easily infiltrated with water, and it is impossible to balance the heat dissipation performance and waterproof performance during use, and their applicability is lacking. Utility Model Content
[0004] The technical problem to be solved by the utility model is how to make the lithium battery have heat dissipation performance and waterproof function at the same time.
[0005] The utility model solves the above technical problems through the following technical means:
[0006] A lithium battery comprises an inner shell (2) and a waterproof mechanism (3); the inner shell (2) is provided with the waterproof mechanism (3); a plurality of heat dissipation holes (22) are provided on the top of the side wall of the inner shell (2) close to the waterproof mechanism (3); and the output end of the waterproof mechanism (3) can move toward the heat dissipation hole (22).
[0007] Beneficial effect: Through the provision of the waterproof mechanism and the heat dissipation holes, the lithium battery can have heat dissipation performance while taking into account the waterproof function.
[0008] Furthermore, both ends of the left and right sides of the inner shell (2) are fixedly connected with a group of slide rails (21), and the output end of the waterproof mechanism (3) is slidably arranged between each group of the slide rails (21).
[0009] Furthermore, a group of the slide groove rails (21) includes two slide groove rails (21), and a guide plate (24) is fixedly connected between the top ends of the two slide groove rails (21).
[0010] Beneficial effect: By setting the guide plate, the water above the heat dissipation hole can be shielded to prevent the water from directly flowing into the inner shell through the heat dissipation hole.
[0011] Furthermore, the waterproof mechanism (3) comprises a water absorption component (31) and a baffle (32), and the water absorption component (31) can drive the baffle (32) to move along the Z axis.
[0012] Furthermore, the water absorption component (31) comprises a storage container (311), a flow guide pot (312), a push block (313), and a push rod (314); water-absorbing resin particles are placed in the storage container (311); the top end of the storage container (311) is detachably connected to the flow guide pot (312); the push block (313) is slidably connected to the flow guide pot (312); the outer wall of the push block (313) is tightly fitted with the inner wall of the flow guide pot (312); the top end of the push block (313) is fixedly connected to the push rod (314) that passes through the flow guide pot (312); the top end of the push rod (314) is fixedly connected to the lower surface of the baffle (32); and the outer wall of the storage container (311) is provided with an infiltration hole (3111).
[0013] Beneficial effect: through the mutual cooperation of the storage container, the guide tank, the push block and the push rod, an infiltration hole is opened on the storage container, which is convenient for water to quickly infiltrate into the storage container, so that the water-absorbing resin can expand quickly, and the push block is pushed, and the push block drives the push rod to lift the baffle, so that the baffle moves up and fits tightly with the outer wall of the inner shell to seal and close the heat dissipation hole, preventing water from infiltrating into the inner shell and causing damage to the lithium battery body; through the detachable connection between the storage container and the guide tank, it is convenient to disassemble the storage container and the guide tank, and it is convenient to take out the water-absorbing resin after absorbing water and swelling, and it is convenient to replace the new water-absorbing resin, which is more convenient to use.
[0014] Furthermore, the infiltration holes (3111) are designed as a mesh structure.
[0015] Beneficial effect: The arrangement of the mesh structure can prevent the resin from leaking out of the storage container.
[0016] Furthermore, a magnetic block (211) having a rubber layer on the outer wall is fixedly connected to the top of the inner wall of the slide rail (21), and a metal layer is fixed to the top of the baffle (32).
[0017] Beneficial effect: by setting the magnetic block and the metal layer above the baffle, after the baffle moves up, the magnetic block can be used to magnetically attract the baffle to ensure the shielding and sealing effect of the baffle on the heat dissipation holes.
[0018] Furthermore, the front and rear sides of the inner shell (2) are fixedly connected with a heat conducting plate (5) with a mesh structure, and the heat conducting plate (5) is connected to the heat dissipation holes (22) on the inner shell (2).
[0019] Furthermore, the front and rear walls of the inner shell (2) are each provided with two ventilation slots (23), the ventilation slots (23) being of a through-type design, a plurality of evenly distributed heat dissipation fins (231) being arranged in the ventilation slots (23), and the ventilation slots (23) being located between two adjacent lithium batteries in the inner shell (2).
[0020] Beneficial effect: by setting the ventilation slots and the heat dissipation fins, when the ventilation slots are used in conjunction with the heat dissipation fins to dissipate heat from the inner shell, the inner shell will not be connected, thereby ensuring the waterproof performance of the inner shell.
[0021] Furthermore, it also includes an outer shell (1) and a cover plate (4), wherein a plurality of side walls of the outer shell (1) are provided with a plurality of air-permeable mesh openings (11), an inner shell (2) for mounting a lithium battery body is placed inside the outer shell (1), and the cover plate (4) is clamped in the top opening of the inner shell (2).
[0022] The advantages of the utility model are:
[0023] The utility model can make the lithium battery have heat dissipation performance and waterproof function at the same time by arranging the waterproof mechanism and the heat dissipation holes.
[0024] The utility model can shield the water above the heat dissipation hole by disposing the guide piece, so as to prevent the water from directly flowing into the inner shell through the heat dissipation hole.
[0025] The utility model cooperates with the storage container, the guide tank, the push block and the push rod. The storage container is provided with an infiltration hole, which is convenient for water to quickly infiltrate into the storage container, so that the water-absorbing resin can expand quickly. The push block is pushed, and the push block drives the push rod to lift the baffle, so that the baffle moves up and fits tightly with the outer wall of the inner shell to seal and close the heat dissipation hole, preventing water from infiltrating into the inner shell and causing damage to the lithium battery body; through the detachable connection between the storage container and the guide tank, the storage container and the guide tank are convenient to be disassembled, the water-absorbing resin that has expanded after absorbing water is convenient to be taken out, and the water-absorbing resin is convenient to be replaced with a new one, which is more convenient to use.
[0026] The utility model can prevent the resin from leaking out of the storage container by setting the mesh structure.
[0027] The utility model arranges the magnetic block and the metal layer above the baffle, and after the baffle moves up, the magnetic block can be used to magnetically attract the baffle, so as to ensure the shielding and sealing effect of the baffle on the heat dissipation hole.
[0028] The utility model provides the ventilation slots and the heat dissipation fins, and when the ventilation slots cooperate with the heat dissipation fins to dissipate heat for the inner shell, the inner shell will not be connected, thus ensuring the waterproof performance of the inner shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 This is a three-dimensional diagram of a lithium battery according to a first embodiment of the present utility model;
[0030] Figure 2 This is an internal display diagram of a lithium battery in Example 1 of the utility model;
[0031] Figure 3 This is a three-dimensional diagram of a water absorption component in a lithium battery in Embodiment 1 of the utility model;
[0032] Figure 4 for Figure 2 A is an enlarged view of the middle image. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] Embodiment 1
[0035] like Figure 1 , Figure 2 As shown, this embodiment provides a lithium battery, including an outer shell 1, an inner shell 2, a waterproof mechanism 3, and a cover plate 4.
[0036] like Figure 1 , Figure 2 As shown, a plurality of air-permeable mesh openings 11 are provided on the multiple side walls of the outer shell 1, and an inner shell 2 for mounting a lithium battery body is placed inside the outer shell 1; a group of slide rails 21 are fixedly connected to both ends of the left and right sides of the inner shell 2, and a waterproof mechanism 3 is slidably arranged between each group of slide rails 21, and a plurality of heat dissipation holes 22 are provided on the top of the side wall of the inner shell 2 near the waterproof mechanism 3; a cover plate 4 is clamped in the top opening of the inner shell 2.
[0037] like Figure 2 , Figure 3As shown, the waterproof mechanism 3 includes a water absorption component 31 and a baffle 32. The water absorption component 31 can drive the baffle 32 to move along the Z axis; a rubber layer is fixed on the back of the baffle 32, and the baffle 32 is slidably connected between the slide rails 21; the water absorption component 31 includes a storage container 311, a diversion tank 312, a push block 313, and a push rod 314. Both ends of the inner shell 2 are fixedly connected with a storage container 311 for storing water-absorbing resin particles, and the top of the storage container 311 is detachably connected with the diversion tank 312, and the push block 313 is slidably connected in the diversion tank 312. The outer wall of the push block 313 is tightly fitted with the inner wall of the diversion tank 312, and the top of the push block 313 is fixed. A top rod 314 is connected to the guide pot 312, and the top of the top rod 314 is fixedly connected to the lower surface of the baffle 32; the outer wall of the storage container 311 is provided with a mesh structure design of the infiltration hole 3111, through the mesh structure design of the infiltration hole 3111, it is convenient for water to quickly infiltrate into the storage container 311, so that the water-absorbing resin can be quickly expanded and prevented from leaking out; the storage container 311 and the guide pot 312 are threadedly connected, and through this design, it is convenient to disassemble the storage container 311 and the guide pot 312, and it is convenient to take out the water-absorbing resin after absorbing water and expanding, and it is convenient to replace the new water-absorbing resin, which is more convenient to use;
[0038] like Figure 2 , Figure 4 As shown, the top of the inner wall of the slide rail 21 is fixedly connected to a magnetic block 211 with a rubber layer on the outer wall, and the top of the baffle 32 is fixed with a metal layer. After the baffle 32 moves up, the magnetic block 211 can be used to magnetically attract the baffle 32 to ensure the shielding and sealing effect of the baffle 32 on the heat dissipation hole 22;
[0039] like Figure 2 , Figure 4 As shown, a group of slide groove rails 21 includes two slide groove rails 21, and a guide plate 24 is fixedly connected between the top ends of the two slide groove rails 21. The guide plate 24 is set to block the water above the heat dissipation hole 22 to prevent the water from directly flowing into the inner shell 2 through the heat dissipation hole 22.
[0040] like Figure 1 As shown, a rubber layer is fixed on the lower surface of the cover plate 4, and the cover plate 4 is fixedly connected to the inner shell 2 by screws. Through its design, the cover plate 4 can tightly close the opening of the inner shell 2 to ensure its waterproof effect on the lithium battery body.
[0041] like Figure 2As shown, the front and rear sides of the inner shell 2 are fixedly connected with a heat conducting plate 5 with a mesh structure, the heat conducting plate 5 is connected to the heat dissipation holes 22 on the inner shell 2, and the front and rear walls of the inner shell 2 are provided with two ventilation slots 23, and the ventilation slots 23 are of a through design, and a plurality of evenly distributed heat dissipation fins 231 are arranged in the ventilation slots 23, and the ventilation slots 23 are located between two adjacent lithium batteries in the inner shell 2. Through this design, when the ventilation slots 23 are used in conjunction with the heat dissipation fins 231 to dissipate heat for the inner shell 2, they will not be connected to the inside of the inner shell 2, thereby ensuring the waterproof performance of the inner shell 2.
[0042] When in use, first install the lithium battery body in the inner shell 2 inside the outer shell 1, and wrap it tightly by the cover plate 4. In the process of daily use, the heat of the lithium battery body in the inner shell 2 is conducted and dissipated through the heat conduction plate 5, and the air quickly enters the inner shell 2 through the heat dissipation holes 22 opened on the inner shell 2, and quickly takes away the heat of the heat conduction plate 5 for heat dissipation. At the same time, the air passes through the breathable mesh port 11 to allow the outer shell 1 to exchange air with the outside world, and the air passes through the ventilation slot 23 and enters the heat dissipation fin 231. In one step, the inner shell 2 is cooled to keep the lithium battery body in the inner shell 2 at a relatively low temperature. Secondly, when encountering water, the water penetrates into the outer shell 1 and penetrates into the storage container 311 through the penetration hole 3111, so that the water-absorbing resin in the storage container 311 expands rapidly to push the push block 313. The push block 313 drives the push rod 314 to lift the baffle 32, so that the baffle 32 moves up and fits tightly with the outer wall of the inner shell 2 to seal and close the heat dissipation hole 22, thereby preventing water from penetrating into the inner shell 2 and damaging the lithium battery body.
[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A lithium battery, characterized in that: It comprises an inner shell (2) and a waterproof mechanism (3); The inner shell (2) is provided with a waterproof mechanism (3); a plurality of heat dissipation holes (22) are provided on the top of the side wall of the inner shell (2) close to the waterproof mechanism (3); the output end of the waterproof mechanism (3) can move toward the heat dissipation hole (22); the waterproof mechanism (3) comprises a water absorption component (31) and a baffle (32); the water absorption component (31) can drive the baffle (32) to move along the Z axis; the water absorption component (31) comprises a storage container (311), a diversion tank (312), a push block (313), and a push rod (314); the storage container (311) and a guide tank (312) are provided with a push block (313), and a push rod (314); Water-absorbing resin particles are placed in the storage container (311); the top of the storage container (311) is detachably connected to a diversion tank (312); a push block (313) is slidably connected to the diversion tank (312); the outer wall of the push block (313) is tightly fitted with the inner wall of the diversion tank (312); the top of the push block (313) is fixedly connected to a push rod (314) that passes through the diversion tank (312); the top of the push rod (314) is fixedly connected to the lower surface of the baffle (32); and an infiltration hole (3111) is opened on the outer wall of the storage container (311).
2. A lithium battery according to claim 1, characterized in that: Both ends of the left and right sides of the inner shell (2) are fixedly connected with a group of slide rails (21), and the output end of the waterproof mechanism (3) is slidably arranged between each group of the slide rails (21).
3. A lithium battery according to claim 2, characterized in that: A group of the slide groove rails (21) comprises two slide groove rails (21), and a guide plate (24) is fixedly connected between the top ends of the two slide groove rails (21).
4. A lithium battery according to claim 1, characterized in that: The infiltration holes (3111) are designed as a mesh structure.
5. A lithium battery according to claim 2, characterized in that: The top end of the inner wall of the slide rail (21) is fixedly connected to a magnetic block (211) with a rubber layer on the outer wall, and the top end of the baffle (32) is fixed to a metal layer.
6. A lithium battery according to claim 1, characterized in that: The front and rear sides of the inner shell (2) are both fixedly connected with a heat conducting plate (5) with a mesh structure, and the heat conducting plate (5) is in contact with the heat dissipation holes (22) on the inner shell (2).
7. A lithium battery according to claim 1, characterized in that: The front and rear walls of the inner shell (2) are each provided with two ventilation slots (23), the ventilation slots (23) being of a through-design, a plurality of evenly distributed heat dissipation fins (231) being arranged in the ventilation slots (23), and the ventilation slots (23) being located between two adjacent lithium batteries in the inner shell (2).
8. A lithium battery according to claim 1, characterized in that: It also comprises an outer shell (1) and a cover plate (4); a plurality of air-permeable mesh openings (11) are provided on the multiple side walls of the outer shell (1); an inner shell (2) for mounting a lithium battery body is placed inside the outer shell (1); and the cover plate (4) is clamped in the top opening of the inner shell (2).