Lithium iron phosphate battery energy storage protection board

Abstract

The utility model discloses a lithium iron phosphate battery energy storage protection board relates to protection board technical field, the utility model discloses a shell, the inner chamber swing joint of shell has quick detach assembly, the inner chamber fixed connection of quick detach assembly has limit component, and the inner chamber of quick detach assembly is swing joint with protection board body through limit component. The utility model discloses setting up quick detach assembly, solved the problem that traditional protection board maintenance needs to dismantle the shell, when needing to maintain protection board body, need not whole disassembly shell, only need to drive screw rod, worm wheel rotation through driving part, make the clamping block of screw rod both ends separate from the clamping hole of shell mounting port, can take out from the shell with protection board body along with the mounting plate, greatly shorten the maintenance operation time, improved maintenance efficiency, avoided the structural damage or circuit contact bad etc. Safety hidden danger that frequent disassembly shell can cause simultaneously, guarantee the stability and safety in the use process of protection board.

Description

Technical Field

[0001] This utility model belongs to the field of protection board technology, and in particular relates to a lithium iron phosphate battery energy storage protection board. Background Technology

[0002] The lithium iron phosphate battery energy storage protection board has overcharge protection and over-discharge protection functions, and the ability to prevent the cell voltage from exceeding the preset value and the ability to prevent the cell voltage from falling below the preset value. It also has overcurrent protection, short circuit protection, resistance clearing and anti-static capabilities.

[0003] Chinese patent application CN222422078U discloses a lithium iron phosphate battery energy storage protection board, including a shell. Multiple mounting plates are fixedly installed on the inner wall of the shell, and the same protection board body is fixedly installed on the multiple mounting plates. An air inlet and an air outlet are respectively opened on the bottom side of the shell. Multiple heat dissipation grooves are respectively opened inside the shell. A collection chamber is opened inside the shell. A heat dissipation driving mechanism is provided in the air inlet, and a flow guiding mechanism is provided on the bottom inner wall of the shell. This invention, through the heat dissipation driving mechanism inside the shell, draws outside air through the air inlet, inside the shell, through the multiple heat dissipation grooves to the collection chamber, and then exhausts it through the air outlet. This achieves rapid heat dissipation of the shell by expelling the hot air generated by the charging and discharging of the protection board body inside the shell to the outside, reducing the possibility of the protection board body burning out due to high temperature and ensuring the normal operation of the charging and discharging function of the protection board body inside the shell.

[0004] While this patent can efficiently dissipate the heat generated by lithium batteries during operation, it requires disassembling the outer casing when repairing the protection board. This not only reduces repair efficiency but also poses a safety hazard.

[0005] To address these issues, we provide a lithium iron phosphate battery energy storage protection board. Utility Model Content

[0006] The purpose of this utility model is to provide a lithium iron phosphate battery energy storage protection board. By combining quick-release components and limiting components, it solves the problem that the protection board in the prior art is inconvenient to disassemble and assemble, which brings great inconvenience to the later maintenance work.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a lithium iron phosphate battery energy storage protection board, comprising a shell, a quick-release assembly movably connected to the inner cavity of the shell, a limiting assembly fixedly connected to the inner cavity of the quick-release assembly, and a protection board body movably connected to the inner cavity of the quick-release assembly via the limiting assembly. The quick-release assembly includes a mounting port on one side of the shell surface, a mounting plate disposed within the inner cavity of the mounting port, a moving groove formed within the inner cavity of the mounting plate, a through groove formed between the front and rear moving grooves, a lead screw fixedly connected to the inner cavity of the moving groove via a bearing seat, locking blocks threaded to both ends of the lead screw, and a worm gear fixedly connected to the surface of the lead screw. The top of the worm gear is engaged with a worm, both ends of which are fixedly connected to the inner wall of the through groove via bearings. A driving component is fixedly connected to the surface of the worm. The limiting assembly includes a mounting hole on one side of the mounting plate, a connecting rod in the inner cavity of the mounting hole, an annular groove on the periphery of the mounting hole, a spring fixedly connected to the inner cavity of the annular groove, and a pull plate fixedly connected to the other end of the connecting rod and the spring. A movable groove is provided on one side of the bottom of the mounting plate, a pin is provided in the inner cavity of the movable groove, a spring is sleeved on the surface of the pin, and a connecting plate is fixedly connected to the other end of the pin and the spring.

[0009] The present invention is further provided that the top of the mounting plate is fixedly connected to a handle, and both sides of the inner cavity of the mounting port are provided with locking holes for use with locking blocks. The handle makes it easy for operators to hold and put in and take out the mounting plate, improving the convenience of quick disassembly operation. The locking holes cooperate with the locking blocks to accurately position and securely connect the mounting plate and the outer shell, preventing the mounting plate from shaking inside the outer shell and enhancing the stability of the overall structure.

[0010] The present invention is further configured such that both the moving groove and the locking block adopt a rectangular design, and the threads at both ends of the lead screw are designed in opposite directions. The rectangular design of the moving groove and the locking block can limit the rotation of the locking block during movement and ensure the stability of the moving direction of the locking block. The reverse thread design at both ends of the lead screw allows the locking blocks at both ends to move synchronously in opposite directions when the lead screw rotates, realizing quick locking or unlocking and improving the operating efficiency of the quick-release assembly.

[0011] The present invention is further configured such that a pin hole is provided at the end of the connecting rod away from the pull plate, and the top of the pin extends into the inner cavity of the pin hole. The pin hole and the top of the pin cooperate with each other. After the connecting rod limits the protective plate body, the connecting rod can be fixed by inserting the pin into the pin hole, which prevents the connecting rod from falling out of the limiting position due to external force or vibration, thereby enhancing the limiting reliability of the limiting component.

[0012] The present invention is further configured such that a pull ring is fixedly connected to the bottom of the connecting plate. The pull ring provides the operator with a convenient point of force application, making it easy to pull the connecting plate to drive the pin rod to move, making the separation operation of the pin rod from the pin hole easier and further improving the ease of operation of the limiting component.

[0013] The present invention is further configured such that the driving component includes a bevel gear one fixedly connected to the surface of the worm gear, a bevel gear two meshing at the top of the bevel gear one, a rotating shaft fixedly connected to the top of the bevel gear two, the top of the rotating shaft extending through to the top of the mounting plate and fixedly connected to a rotating wheel. The meshing of bevel gear one and bevel gear two can change the direction of force transmission, allowing the rotating wheel driven by the rotating shaft to operate on the top of the mounting plate without needing to penetrate into the housing. The rotating wheel increases the operating lever arm, making it easier to drive the worm gear to rotate and improving the driving convenience of the quick-release assembly.

[0014] The present invention is further configured such that cooling fans are fixedly connected to both the upper and lower ends of the back side of the inner cavity of the outer shell, and heat-conducting fins are fixedly connected to the inner cavity of the outer shell on one side of the protective plate body. The cooling fans can accelerate the airflow inside the outer shell and quickly remove the heat generated by the protective plate body. The heat-conducting fins on one side of the protective plate body can quickly absorb the heat of the protective plate body and expand the heat dissipation area. The combination of the two significantly improves the heat dissipation efficiency of the protective plate and avoids high temperature from affecting its working performance.

[0015] The present invention is further configured such that an air inlet and a heat dissipation hole are respectively provided on one side of the front and back of the outer shell. The air inlet facilitates the entry of cold air from the outside into the interior of the outer shell, and the heat dissipation hole facilitates the discharge of hot air from the interior. Together with the heat dissipation fan and the heat-conducting fins, they form a complete air circulation channel to ensure that the heat inside the outer shell is dissipated in a timely manner and to maintain the protective plate body at a suitable temperature.

[0016] The present invention has the following beneficial effects.

[0017] 1. This utility model solves the problem of needing to disassemble the outer shell when repairing traditional protection boards by setting up a quick-release component. When the protection board body needs to be repaired, there is no need to disassemble the entire outer shell. The worm gear and worm wheel are rotated by the drive component, so that the locking blocks at both ends of the lead screw disengage from the locking holes of the outer shell mounting port. The mounting plate and the protection board body can then be taken out from the outer shell, which greatly shortens the repair operation time and improves the repair efficiency. At the same time, it avoids the safety hazards such as structural damage or poor circuit contact that may be caused by frequent disassembly of the outer shell, and ensures the stability and safety of the protection board during use.

[0018] 2. This utility model, through the cooperation of the limiting component and the quick-release component, ensures the stability of the protective plate body installation while retaining the efficient heat dissipation function. In the limiting component, the elastic force of spring one and spring two makes the connecting rod and pin tightly limit the protective plate body, preventing it from shaking during use; at the same time, the heat dissipation fan, heat-conducting fins, air inlet and heat dissipation holes inside the shell form a complete heat dissipation channel, which can dissipate the heat generated by the protective plate body in time, avoid high temperature affecting its performance, and take into account both structural stability and heat dissipation effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a three-dimensional view of a lithium iron phosphate battery energy storage protection board.

[0021] Figure 2 This is a front cross-sectional schematic diagram of a lithium iron phosphate battery energy storage protection board.

[0022] Figure 3 This is a rear cross-sectional schematic diagram of a lithium iron phosphate battery energy storage protection board.

[0023] Figure 4 This is a three-dimensional schematic diagram of a partial structure in a lithium iron phosphate battery energy storage protection board.

[0024] Figure 5 This is a front sectional view of the connection structure between the mounting plate and the protection board body in a lithium iron phosphate battery energy storage protection board.

[0025] Figure 6 This is a side sectional view of the connection structure between the mounting plate and the protection plate body in a lithium iron phosphate battery energy storage protection board.

[0026] Figure 7 In a lithium iron phosphate battery energy storage protection board Figure 5 Enlarged diagram of point A.

[0027] Figure 8 In a lithium iron phosphate battery energy storage protection board Figure 6 Enlarged diagram at point B

[0028] In the attached diagram: 1. Outer shell; 2. Quick-release assembly; 21. Mounting plate; 22. Moving slot; 23. Through slot; 24. Lead screw; 25. Locking block; 26. Worm gear; 27. Worm; 28. Drive component; 281. Bevel gear one; 282. Bevel gear two; 283. Rotating shaft; 3. Limiting assembly; 31. Connecting rod; 32. Spring one; 33. Pull plate; 34. Pin; 35. Spring two; 36. Connecting plate; 4. Protective plate body; 5. Cooling fan; 6. Heat-conducting fins. Detailed Implementation

[0029] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example 1

[0031] Please see Figure 1-8This utility model relates to a lithium iron phosphate battery energy storage protection board, comprising a shell 1, a quick-release assembly 2 movably connected to the inner cavity of the shell 1, a limiting assembly 3 fixedly connected to the inner cavity of the quick-release assembly 2, and a protection board body 4 movably connected to the inner cavity of the quick-release assembly 2 via the limiting assembly 3. The quick-release assembly 2 includes an installation port on one side of the surface of the shell 1, an installation plate 21 provided in the inner cavity of the installation port, a moving groove 22 provided in the inner cavity of the installation plate 21, a through groove 23 provided between the front and rear moving grooves 22, a lead screw 24 fixedly connected to the inner cavity of the moving groove 22 via a bearing seat, a locking block 25 threaded to both ends of the lead screw 24, and a worm gear 26 fixedly connected to the surface of the lead screw 24. The top of the worm gear 26 is engaged with a worm 27. Both ends of the worm 27 are fixedly connected to the inner wall of the through groove through bearings. A drive component 28 is fixedly connected to the surface of the worm 27. The limiting component 3 includes a mounting hole opened on one side of the mounting plate 21. A connecting rod 31 is provided in the inner cavity of the mounting hole. An annular groove is opened around the mounting hole. A spring 32 is fixedly connected to the inner cavity of the annular groove. A pull plate 33 is fixedly connected to the other end of the connecting rod 31 and the spring 32. A movable groove is opened on one side of the bottom of the mounting plate 21. A pin 34 is provided in the inner cavity of the movable groove. A spring 35 is sleeved on the surface of the pin 34. A connecting plate 36 is fixedly connected to the other end of the pin 34 and the spring.

[0032] Specifically: the size of the mounting opening is adapted to the mounting plate 21, the through groove 23 is set along the length direction of the mounting plate 21, the worm gear 27 can rotate freely in the through groove, the mounting holes are evenly distributed on the edge of the mounting plate 21, the inner cavity of the mounting hole is provided with a connecting rod 31 that can move along the axial direction of the mounting hole, the annular groove is coaxially set with the mounting hole, and the movable groove is set along the height direction of the mounting plate 21.

[0033] Example 2

[0034] Please see Figure 1-8 Based on Embodiment 1, a handle is fixedly connected to the top of the mounting plate 21, and locking holes for use with the locking block 25 are opened on both sides of the inner cavity of the mounting port. The moving groove 22 and the locking block 25 are both rectangular in design. The threads at both ends of the lead screw 24 are reversed. A pin hole is opened at the end of the connecting rod 31 away from the pull plate 33. The top of the pin 34 extends to the inner cavity of the pin hole. A pull ring is fixedly connected to the bottom of the connecting plate 36. The driving component 28 includes a bevel gear 281 fixedly connected to the surface of the worm gear 27. A bevel gear 282 meshes with the top of the bevel gear 281. A rotating shaft 283 is fixedly connected to the top of the bevel gear 282. The top of the rotating shaft 283 extends through to the top of the mounting plate 21 and is fixedly connected to a rotating wheel. A cooling fan 5 is fixedly connected to both the upper and lower ends of the back of the inner cavity of the outer shell 1. A heat-conducting fin 6 is fixedly connected to the inner cavity of the outer shell 1 and to one side of the protective plate body 4. An air inlet and a heat dissipation hole are opened on one side of the front and back of the outer shell 1, respectively.

[0035] Specifically: the handle facilitates the operator's gripping and placement of the mounting plate 21, improving the convenience of quick-release operation; the locking hole and locking block 25 cooperate to accurately position and securely connect the mounting plate 21 to the outer shell 1, preventing the mounting plate 21 from shaking inside the outer shell 1 and enhancing the overall structural stability; the rectangular design of the moving groove 22 and locking block 25 restricts the rotation of the locking block 25 during movement, ensuring the stability of the moving direction of the locking block 25; the reverse thread design at both ends of the lead screw 24 allows the locking blocks 25 at both ends to move synchronously in opposite directions when the lead screw 24 rotates, achieving quick locking or unlocking and improving the operating efficiency of the quick-release component 2; the pin hole cooperates with the top of the pin rod 34, allowing the connecting rod 31 to be fixed by inserting the pin rod 34 into the pin hole after the connecting rod 31 limits the protective plate body 4, preventing the connecting rod 31 from dislodging from the limit position due to external force or vibration, enhancing the limiting reliability of the limiting component 3; the pull ring provides the operator with a convenient point of force application, facilitating the pulling of the connecting plate 36 to move the pin rod 34. This design makes separating the pin 34 from the pin hole easier and further improves the ease of operation of the limiting component 3. The meshing of bevel gear 1 281 and bevel gear 282 can change the direction of force transmission, allowing the rotating wheel driven by the rotating shaft 283 to operate on the top of the mounting plate 21 without having to go deep into the housing 1. The rotating wheel increases the operating lever arm, making it easier to rotate the drive worm gear 27 and improving the ease of driving the quick-release component 2. The cooling fan 5 can accelerate the airflow inside the housing 1 and quickly remove the heat generated by the protective plate body 4. The heat-conducting fins 6 on one side of the protective plate body 4 can quickly absorb the heat of the protective plate body 4 and expand the heat dissipation area. The combination of the two significantly improves the heat dissipation efficiency of the protective plate and avoids high temperature affecting its working performance. The air inlet hole facilitates the entry of cold air into the housing 1, and the heat dissipation hole facilitates the exhaust of hot air inside. Together with the cooling fan 5 and the heat-conducting fins 6, they form a complete air circulation channel to ensure that the heat inside the housing 1 is dissipated in time and maintain the protective plate body 4 at a suitable temperature.

[0036] The working principle of this utility model is as follows: The protective plate body 4 is fixed on the mounting plate 21 of the quick-release assembly 2 by the limiting component 3. The protective plate body 4 is placed into the mounting plate 21, and the pressing pull plate 33 drives the connecting rod 31 to move. The connecting rod 31 squeezes the pin 34. When the pin 34 is aligned with the pin hole, the spring 2 35 pushes the pin 34 into the inner cavity of the pin hole, completing the limiting and fixing of the protective plate body 4. Then, the wires inside the outer shell 1 are connected to the protective plate body. Then, the mounting plate 21 is placed into the inner cavity of the mounting opening. The rotating wheel drives the rotating shaft 283 to rotate. The rotating shaft 283 drives the second bevel gear 282 to rotate. The second bevel gear 282 drives the first bevel gear 281 to rotate. Gear 281 drives worm 27 to rotate, worm 27 meshes with worm wheel 26 to rotate lead screw 24, and the locking blocks 25 at both ends of lead screw 24 move outward synchronously along moving groove 22 and insert into locking holes on both sides of mounting port to fix mounting plate 21 to housing 1. When disassembling, reverse operation of drive component 28 causes locking block 25 to disengage from locking hole, and mounting plate 21 along with protective plate body 4 can be taken out by handle. During heat dissipation, cold air is introduced through air inlet on front of housing 1, and cooling fan 5 accelerates air flow. Heat generated by protective plate body 4 is conducted to air through heat-conducting fins 6, and hot air is discharged through heat dissipation holes on back, forming a continuous heat dissipation cycle to ensure stable operation of protective plate body 4.

[0037] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A lithium iron phosphate battery energy storage protection board, comprising a housing (1), characterized in that: The inner cavity of the outer shell (1) is movably connected to a quick-release assembly (2), the inner cavity of the quick-release assembly (2) is fixedly connected to a limiting assembly (3), and the inner cavity of the quick-release assembly (2) is movably connected to a protective plate body (4) through the limiting assembly (3). The quick-release assembly (2) includes an installation port on one side of the surface of the outer shell (1). The inner cavity of the installation port is provided with an installation plate (21). The inner cavity of the installation plate (21) is provided with a moving groove (22). A through groove (23) is provided between the front and rear moving grooves (22). The inner cavity of the moving groove (22) is fixedly connected to a lead screw (24) through a bearing seat. Both ends of the lead screw (24) are threaded with a locking block (25). The surface of the lead screw (24) is fixedly connected with a worm gear (26). The top of the worm gear (26) is meshed with a worm (27). Both ends of the worm (27) are fixedly connected to the inner wall of the through groove through bearings. The surface of the worm (27) is fixedly connected with a driving component (28). The limiting component (3) includes a mounting hole on one side of the mounting plate (21), a connecting rod (31) is provided in the inner cavity of the mounting hole, an annular groove is provided on the periphery of the mounting hole, a spring (32) is fixedly connected in the inner cavity of the annular groove, and a pull plate (33) is fixedly connected to the other end of the connecting rod (31) and the spring (32). A movable groove is provided on one side of the bottom of the mounting plate (21), a pin (34) is provided in the inner cavity of the movable groove, a spring (35) is sleeved on the surface of the pin (34), and a connecting plate (36) is fixedly connected to the other end of the pin (34) and the spring.

2. The lithium iron phosphate battery energy storage protection board according to claim 1, characterized in that: The top of the mounting plate (21) is fixedly connected to a handle, and the inner cavity of the mounting port is provided with card holes for use with the card block (25) on both sides.

3. The lithium iron phosphate battery energy storage protection board according to claim 1, characterized in that: The moving groove (22) and the locking block (25) are both rectangular in design, and the threads at both ends of the lead screw (24) are reversed.

4. The lithium iron phosphate battery energy storage protection board according to claim 1, characterized in that: The connecting rod (31) has a pin hole at one end away from the pull plate (33), and the top of the pin (34) extends into the inner cavity of the pin hole.

5. The lithium iron phosphate battery energy storage protection board according to claim 1, characterized in that: A pull ring is fixedly connected to the bottom of the connecting plate (36).

6. The lithium iron phosphate battery energy storage protection board according to claim 1, characterized in that: The drive component (28) includes a bevel gear one (281) fixedly connected to the surface of the worm (27), a bevel gear two (282) meshing with the top of the bevel gear one (281), a rotating shaft (283) fixedly connected to the top of the bevel gear two (282), and a rotating wheel fixedly connected to the top of the rotating shaft (283) extending through to the top of the mounting plate (21).

7. The lithium iron phosphate battery energy storage protection board according to claim 1, characterized in that: A heat dissipation fan (5) is fixedly connected to both the upper and lower ends of the back of the inner cavity of the outer shell (1), and a heat-conducting fin (6) is fixedly connected to the inner cavity of the outer shell (1) and to one side of the protective plate body (4).

8. The lithium iron phosphate battery energy storage protection board according to claim 1, characterized in that: The outer casing (1) has an air inlet and a heat dissipation hole on one side of the front and back sides, respectively.

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