A perovskite cell protection device

Abstract

The application discloses a perovskite battery protection device, belonging to the technical field of battery protection, which comprises a protection box body, a mounting cover is arranged on the top of the protection box body, a battery body is arranged in the protection box body, supporting legs are fixedly connected to both ends of the lower part of the protection box body, a heat dissipation assembly is arranged on the lower part of the protection box body, and the protection box body and the battery body are fixed through a mounting assembly. The perovskite battery protection device adopts a combined heat dissipation structure of a bottom heat dissipation fan forced convection, a heat conduction block and heat dissipation fins, can dissipate the working heat of the battery in time, avoids high-temperature aging, stabilizes photoelectric conversion efficiency, effectively prolongs the service life of the perovskite battery, and is provided with a dust filter screen cooperating with a magnetic attraction and a limiting screw locking structure, which can effectively block dust and sundries from entering the box body, and can quickly disassemble and assemble the mounting cover and the filter screen. Automatic centering and clamping are realized through a servo motor and a bidirectional trapezoidal screw rod, and the battery body can be quickly disassembled and assembled.

Description

Technical Field

[0001] This invention belongs to the field of battery protection technology, and specifically relates to a perovskite battery protection device. Background Technology

[0002] Perovskite solar cells are a new generation of photovoltaic cells, possessing many advantages such as simple fabrication process, low cost, and high photoelectric conversion efficiency, making them a key research and application area in the current new energy field.

[0003] Currently, the perovskite battery protection devices on the market have a relatively simple structure, mostly using only a simple outer shell encapsulation structure, which has many defects: insufficient heat dissipation performance, the heat generated by the battery cannot be dissipated in time, high temperature will accelerate battery aging and reduce photoelectric conversion efficiency; conventional fixing methods are mostly rigid bolt fixing, the disassembly and assembly structure is cumbersome, and it is not convenient for battery inspection, replacement and maintenance; and it is not convenient for absorbing and mitigating vibrations. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a perovskite battery protection device that facilitates ventilation and heat dissipation within the protective enclosure and allows for easy disassembly and assembly of the battery body.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a perovskite battery protection device, comprising a protective housing, a top cover installed on the top of the protective housing, a battery body installed inside the protective housing, support legs fixedly connected to both ends at the bottom of the protective housing, a heat dissipation assembly installed at the bottom of the protective housing, and the protective housing and the battery body fixed by the mounting assembly.

[0006] The heat dissipation assembly includes a heat dissipation base, which is installed in the middle of the lower part of the protective housing. The heat dissipation base has symmetrical and fixedly connected cooling fans inside. Fixed blocks are fixedly connected to both sides of the heat dissipation base, and a fixing screw is inserted into the middle of the fixing block. The fixing screw is threadedly connected to the protective housing.

[0007] Preferably, the two ends above the heat sink are symmetrically and fixedly connected with positioning rods, and the positioning rods are tightly inserted into the protective housing.

[0008] Preferably, positioning seats are fixedly connected to both sides of the protective housing, and mounting covers are tightly inserted into the interior of the positioning seats. Dust filters are tightly inserted into the interior of the mounting covers, and a limit component is provided in the middle of the top of the mounting covers.

[0009] Preferably, the limiting component includes a limiting seat, which is fixedly connected to one side of the protective housing. A limiting screw is threadedly connected to the middle of the limiting seat, and a cylindrical limiting block is fixedly connected below the limiting screw. A rubber fastening pad is fixedly connected below the cylindrical limiting block.

[0010] Preferably, anti-slip rods are symmetrically and fixedly connected to both sides above the limiting screw.

[0011] Preferably, a positive magnetic block is embedded and fixedly connected to the side of the mounting cover near the protective box, and a negative magnetic block is magnetically attracted to one side of the positive magnetic block, with the negative magnetic block embedded and fixedly connected to one side of the protective box.

[0012] Preferably, heat-conducting blocks are fixedly connected to the front and rear sides of the protective box, and heat dissipation fins are fixedly connected to one end of the heat-conducting blocks located outside the protective box.

[0013] Preferably, the mounting assembly includes a mounting base, which is located in the middle of the protective housing. A bidirectional trapezoidal lead screw is rotatably connected to the inside of the mounting base via a bearing. One end of the bidirectional trapezoidal lead screw is fixedly connected to a servo motor. The surface of the bidirectional trapezoidal lead screw is symmetrical and threadedly connected to a square sliding plate. A fixing plate is installed on one side of the square sliding plate. A rubber protective pad is fixedly connected to one side of the fixing plate. A buffer assembly is provided below the mounting base.

[0014] Preferably, a pressure sensor is fixedly connected between the square sliding plate and the fixed plate, and a limit block is fixedly connected in the middle of the bidirectional trapezoidal lead screw.

[0015] Preferably, the buffer assembly includes a buffer seat, which is fixedly connected to the middle of the interior of the protective housing. Buffer slide rods are slidably connected to both ends of the buffer seat. The upper part of the buffer slide rod is fixedly connected to a mounting base. A stop block is fixedly connected to the lower part of the buffer slide rod. A buffer spring is sleeved on the surface of the buffer slide rod. Dampers are fixedly connected to both ends of the upper part of the buffer seat. The upper part of the dampers is fixedly connected to the mounting base.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention adopts a combination of bottom cooling fan forced convection and heat conduction structure with heat conduction block and heat dissipation fins, which can dissipate the battery's working heat in time, avoid high temperature aging, stabilize photoelectric conversion efficiency, and effectively extend the service life of perovskite batteries. The dust filter is set with magnetic attraction and limit screw locking structure, which can effectively prevent dust and debris from entering the box, and can quickly remove and install the cover and filter, which is convenient for daily cleaning, maintenance and replacement, and no special tools are required for operation.

[0018] 2. This invention achieves automatic centering and clamping through a servo motor and a bidirectional trapezoidal lead screw, and uses a pressure sensor to control the clamping force in real time. The rubber fastening pad flexibly fits and protects the battery, avoiding damage from hard compression.

[0019] 3. The buffer spring and damper of this invention work together to effectively absorb external vibrations and impact loads, weaken vibration transmission, and are suitable for use in complex working conditions such as outdoor and distributed photovoltaic systems, thereby improving the stability of battery operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the heat dissipation component of the present invention;

[0023] Figure 4 This is a schematic diagram of another part of the heat dissipation component of the present invention;

[0024] Figure 5 This is a cross-sectional structural diagram of the limiting component of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the mounting component of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the buffer component of the present invention.

[0027] In the diagram: 1. Protective housing; 2. Top cover; 3. Heat dissipation assembly; 31. Heat sink base; 32. Fixing block; 33. Fixing screw; 34. Positioning rod; 35. Cooling fan; 36. Dust filter; 37. Mounting cover; 38. Positioning seat; 39. Limiting assembly; 391. Positive magnet; 392. Negative magnet; 393. Limiting seat; 394. Limiting screw; 395. Cylindrical limiting block; 396. 1. Rubber fastening pad; 397. Anti-slip rod; 4. Support leg; 5. Battery body; 6. Mounting assembly; 61. Mounting base; 62. Servo motor; 63. Two-way trapezoidal lead screw; 64. Square sliding plate; 65. Fixing plate; 66. Rubber fastening pad; 67. Buffer assembly; 671. Buffer seat; 672. Buffer slide rod; 673. Stop block; 674. Buffer spring; 675. Damper; 7. Heat conducting block; 8. Heat dissipation fins. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-7The present invention provides the following technical solution: a perovskite battery protection device, comprising a protective housing 1, an air outlet at the bottom of the protective housing 1, air inlets at both sides of the protective housing 1, a cavity inside the protective housing 1 for accommodating the battery body 5, a top cover 2 installed on the top of the protective housing 1, the battery body 5 installed inside the protective housing 1, support legs 4 fixedly connected to the two ends at the bottom of the protective housing 1, a heat dissipation component 3 installed at the bottom of the protective housing 1 to facilitate ventilation and heat dissipation inside the protective housing 1, the protective housing 1 and the battery body 5 being fixed by a mounting component 6 to facilitate easy installation of the battery body 5; the bottom surface of the support legs 4 extends beyond the heat dissipation component 3 to facilitate the support legs 4 to be in contact with the ground for support;

[0030] Please see Figure 3 The heat dissipation component 3 includes a heat dissipation base 31. The bottom surface of the heat dissipation base 31 has an air outlet hole to facilitate the airflow and exhaust. The heat dissipation base 31 has a cavity in the middle to accommodate two cooling fans 35. The heat dissipation base 31 is installed in the middle below the protective housing 1. The cooling fans 35 are symmetrically and fixedly connected inside the heat dissipation base 31. Fixing blocks 32 are fixedly connected to both sides of the heat dissipation base 31. Fixing screws 33 are inserted in the middle of the fixing blocks 32 and are threadedly connected to the protective housing 1.

[0031] Please see Figure 3 The heat sink 31 has two symmetrical and fixedly connected positioning rods 34 at its upper ends. The positioning rods 34 are tightly inserted into the protective housing 1. The lower part of the protective housing 1 has a positioning hole that is tightly inserted into the positioning rods 34. The positioning rods 34 and the positioning holes are tightly inserted into each other, which facilitates positioning when the heat sink 31 is installed.

[0032] Please see Figure 4 The protective housing 1 is fixedly connected to two sides with positioning seats 38. There are four positioning seats 38, which form a space for positioning the mounting cover 37. The mounting cover 37 is tightly inserted into the inside of the positioning seat 38. The dust filter 36 is tightly inserted into the inside of the mounting cover 37. The mounting cover 37 has a groove with the same size and specifications as the dust filter 36 to facilitate the installation of the dust filter 36 without gaps. The side of the dust filter 36 is flush with the mounting cover 37 to ensure that the mounting cover 37 is installed without gaps with the protective housing 1. A limit component 39 is set in the middle of the top of the mounting cover 37 for quick installation and removal of the mounting cover 37.

[0033] Please see Figure 4The limiting component 39 includes a limiting seat 393, which is fixedly connected to one side of the protective housing 1. The lower surface of the limiting seat 393 fits against the mounting cover 37. A limiting screw 394 is threadedly connected to the middle of the limiting seat 393. A cylindrical limiting block 395 is fixedly connected below the limiting screw 394. A groove of the same size as the cylindrical limiting block 395 is opened in the middle of the limiting seat 393 to facilitate the sliding of the cylindrical limiting block 395. A rubber fastening pad 396 is fixedly connected below the cylindrical limiting block 395. The rubber fastening pad 396 provides a fastening force after the cylindrical limiting block 395 is installed, reducing the possibility of loosening. A limiting hole of the same size as the cylindrical limiting block 395 is opened on the top of the mounting cover 37 to ensure tight insertion and stable fixation.

[0034] Please see Figure 4 The upper sides of the limiting screw 394 are symmetrically and fixedly connected with anti-slip rods 397, which makes it easy to turn the limiting screw 394 without the need for tools.

[0035] Please see Figure 4 A positive magnetic block 391 is embedded and fixedly connected to the side of the mounting cover 37 near the protective box 1. The magnetic surface of the positive magnetic block 391 is flush with the mounting surface of the mounting cover 37. A negative magnetic block 392 is magnetically attracted to one side of the positive magnetic block 391. The negative magnetic block 392 is embedded and fixedly connected to one side of the protective box 1. The magnetic surface of the negative magnetic block 392 is flush with the outer wall of the protective box 1. When the mounting cover 37 is magnetically positioned, there is no gap, ensuring a stable connection.

[0036] Please see Figure 1 A heat-conducting block 7 is fixedly connected to the front and rear sides of the protective box 1. A heat dissipation fin 8 is fixedly connected to one end of the heat-conducting block 7 located outside the protective box 1. One end of the heat-conducting block 7 is located inside the protective box 1, which can absorb the heat inside the protective box 1 and then quickly conduct it out through the heat dissipation fin 8 to achieve auxiliary heat dissipation.

[0037] Please see Figure 6The mounting component 6 includes a mounting base 61, which has a groove inside. The mounting base 61 is located in the middle inside the protective housing 1. A bidirectional trapezoidal lead screw 63 is rotatably connected to the inside of the mounting base 61 via a bearing. The threads on the surface are symmetrically opened. One end of the bidirectional trapezoidal lead screw 63 is fixedly connected to a servo motor 62, which is a forward and reverse motor, capable of driving the bidirectional trapezoidal lead screw 63 to rotate forward or backward. The surface of the bidirectional trapezoidal lead screw 63 is symmetrically connected to a square sliding plate 64 with threads. The side wall of the square sliding plate 64 fits into the groove of the mounting base 61, which facilitates the guidance and limiting of the movement of the square sliding plate 64. A fixing plate 65 is installed on one side of the square sliding plate 64. A rubber protective pad 66 is fixedly connected to one side of the fixing plate 65 for protecting the battery body 5. A buffer component 67 is provided below the mounting base 61 to absorb and reduce the vibration of the battery body 5.

[0038] A pressure sensor is fixedly connected between the square slide plate 64 and the fixed plate 65 to monitor the clamping force and prevent insufficient clamping force, which would cause unstable clamping, or excessive clamping force, which would cause damage to the battery body 5. A limit block is fixedly connected in the middle of the bidirectional trapezoidal lead screw 63 to limit the movement range of the square slide plate 64 on the bidirectional trapezoidal lead screw 63.

[0039] Please see Figure 7 The buffer assembly 67 includes a buffer seat 671, which is fixed inside the protective housing 1 by a support rod and has a certain distance from the bottom of the protective housing 1 to provide space for the movement of the buffer slide rod 672. The buffer seat 671 is fixedly connected to the middle inside the protective housing 1. The buffer slide rod 672 is slidably connected to both ends of the buffer seat 671. The buffer seat 671 has grooves of the same size as the buffer slide rod 672 at both ends to facilitate the stable sliding of the buffer slide rod 672 along the buffer seat 671. The upper part of the buffer slide rod 672 is fixedly connected to the mounting base 61. The lower part of the buffer slide rod 672 is fixedly connected to a stop block 673. A buffer spring 674 is sleeved on the surface of the buffer slide rod 672. The upper two ends of the buffer seat 671 are fixedly connected to a damper 675. The upper part of the damper 675 is fixedly connected to the mounting base 61.

[0040] The working principle and usage process of the present invention: The entire device is supported off the ground by the support legs 4, so that the bottom of the protective box 1 is reserved with the ground for ventilation, leaving space for heat dissipation at the bottom. The top cover 2 is installed on the top of the protective box 1 to form a closed protective cavity, which plays a role in physical anti-collision and isolation protection for the internal battery body 5.

[0041] The heat sink 31 is positioned by inserting into the protective housing 1 via positioning rods 34 at both ends, and then fixed by the fixing screws 33 inside the fixing block 32 and threadedly locked to the protective housing 1. During heat dissipation, the heat dissipation fans 35 symmetrically arranged inside the heat sink 31 operate synchronously, forming a top-down convection airflow channel inside the protective housing 1. Outside cold air enters through the mounting covers 37 inserted into the positioning seats 38 on both sides of the protective housing 1, and enters the housing after being filtered by the dust filter 36 embedded inside the mounting cover 37, quickly carrying away the heat generated by the battery body 5 during operation. The hot air is discharged from the air outlet at the bottom of the heat sink 31. At the same time, the heat conduction blocks 7 fixed on the front and rear sides of the protective housing 1 quickly conduct the residual heat accumulated inside the housing, and then dissipate the heat to the outside in the form of thermal radiation through the heat dissipation fins 8 connected to the outer end of the heat conduction blocks 7, forming a dual heat dissipation system of air-cooled convection and heat conduction by the heat conduction fins, continuously controlling the battery operating temperature.

[0042] The mounting cover 37 relies on the magnetic attraction between the positive magnetic block 391 embedded on its inner side and the negative magnetic block 392 embedded on the side wall of the protective box 1 to achieve quick pre-positioning and docking. Then, the operator holds the anti-slip rods 397 on both sides above the limiting screw 394 and rotates the limiting screw 394. The limiting screw 394 moves down the internal thread of the limiting seat 393, driving the lower cylindrical limiting block 395 to engage in the limiting hole of the mounting cover 37. The rubber fastening pad 396 at the bottom of the cylindrical limiting block 395 presses tightly against the mounting cover 37 to complete the locking and fixing. By rotating it in the opposite direction, the mounting cover 37 and the dust filter 36 can be quickly removed, which is convenient for cleaning and replacing the filter and for battery maintenance.

[0043] During battery clamping and fixing, the servo motor 62 in the mounting assembly 6 starts and drives the bidirectional trapezoidal lead screw 63 to rotate forward or in reverse. The symmetrical threads on the surface of the bidirectional trapezoidal lead screw 63 drive two sets of square sliding plates 64 to slide synchronously in opposite directions along the internal sliding grooves of the mounting base 61. The square sliding plates 64 drive the fixing plate 65 and the rubber protective pad 66 to move synchronously, flexibly clamping the battery body 5 from both sides, achieving automatic centering and positioning clamping. The pressure sensor arranged between the square sliding plate 64 and the fixing plate 65 collects clamping pressure data in real time, accurately controls the clamping force, and avoids excessive clamping that may damage the battery body 5 or excessive clamping that may cause displacement and shaking. The limiting block set in the middle of the bidirectional trapezoidal lead screw 63 can limit the maximum sliding stroke of the square sliding plate 64 to prevent the sliding plate from exceeding the stroke and colliding with and damaging the structural components.

[0044] The mounting base 61 is equipped with a buffer assembly 67. When the device is subjected to external vibration, bumps or impacts, the mounting base 61 is displaced downwards by force, which drives the buffer slide rod 672 to slide vertically along the buffer base 671. The buffer spring 674 sleeved on the surface of the buffer slide rod 672 undergoes elastic deformation to absorb the vertical impact energy. The stop block 673 at the bottom of the buffer slide rod 672 limits the maximum downward stroke to prevent it from falling off. At the same time, the dampers 675 arranged on both sides of the upper end of the buffer base 671 are compressed and extended synchronously, which quickly attenuates the oscillation residual waves generated by the spring rebound, effectively filtering and isolating the external vibration impact, and preventing the vibration from being directly transmitted to the battery body 5 above the mounting base 61, which greatly improves the battery's operating stability and impact resistance under complex working conditions.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A perovskite battery protection device, comprising a protective housing (1), a top cover (2) installed on the top of the protective housing (1), a battery body (5) installed inside the protective housing (1), and support legs (4) fixedly connected to both ends of the lower part of the protective housing (1), characterized in that: A heat dissipation assembly (3) is installed below the protective housing (1), and the protective housing (1) and the battery body (5) are fixed by the mounting assembly (6); The heat dissipation assembly (3) includes a heat dissipation base (31), which is installed in the middle below the protective housing (1). The heat dissipation base (31) is symmetrically connected to a heat dissipation fan (35). Fixing blocks (32) are fixedly connected to both sides of the heat dissipation base (31). Fixing screws (33) are inserted in the middle of the fixing blocks (32). The fixing screws (33) are threadedly connected to the protective housing (1).

2. The perovskite battery protection device according to claim 1, characterized in that: The two ends above the heat sink (31) are symmetrically and fixedly connected with positioning rods (34), and the positioning rods (34) and the protective box (1) are tightly inserted.

3. The perovskite battery protection device according to claim 1, characterized in that: The protective housing (1) is fixedly connected to two sides with positioning seats (38), and a mounting cover (37) is tightly inserted inside the positioning seat (38). A dust filter (36) is tightly inserted inside the mounting cover (37), and a limit component (39) is provided in the middle above the mounting cover (37).

4. The perovskite battery protection device according to claim 3, characterized in that: The limiting component (39) includes a limiting seat (393), which is fixedly connected to one side of the protective housing (1). A limiting screw (394) is threadedly connected to the middle of the limiting seat (393). A cylindrical limiting block (395) is fixedly connected below the limiting screw (394), and a rubber fastening pad (396) is fixedly connected below the cylindrical limiting block (395).

5. A perovskite battery protection device according to claim 4, characterized in that: The upper sides of the limiting screw (394) are symmetrically and fixedly connected with anti-slip rods (397).

6. A perovskite battery protection device according to claim 4, characterized in that: The mounting cover (37) is fixedly connected to a positive magnetic block (391) on one side near the protective box (1), and a negative magnetic block (392) is magnetically attracted to one side of the positive magnetic block (391). The negative magnetic block (392) is fixedly connected to one side of the protective box (1).

7. The perovskite battery protection device according to claim 1, characterized in that: The front and rear sides of the protective box (1) are fixedly connected to heat-conducting blocks (7), and one end of the heat-conducting block (7) located outside the protective box (1) is fixedly connected to heat dissipation fins (8).

8. A perovskite battery protection device according to claim 1, characterized in that: The mounting assembly (6) includes a mounting base (61), which is located in the middle of the protective housing (1). A bidirectional trapezoidal lead screw (63) is rotatably connected to the inside of the mounting base (61) via a bearing. A servo motor (62) is fixedly connected to one end of the bidirectional trapezoidal lead screw (63). A square sliding plate (64) is threadedly connected to the surface of the bidirectional trapezoidal lead screw (63). A fixing plate (65) is installed on one side of the square sliding plate (64). A rubber protective pad (66) is fixedly connected to one side of the fixing plate (65). A buffer assembly (67) is provided below the mounting base (61).

9. A perovskite battery protection device according to claim 8, characterized in that: A pressure sensor is fixedly connected between the square sliding plate (64) and the fixed plate (65), and a limit block is fixedly connected in the middle of the bidirectional trapezoidal lead screw (63).

10. A perovskite battery protection device according to claim 8, characterized in that: The buffer assembly (67) includes a buffer seat (671), which is fixedly connected to the middle of the inside of the protective housing (1). Buffer slide rods (672) are slidably connected to both ends of the buffer seat (671). The upper part of the buffer slide rods (672) is fixedly connected to the mounting base (61). A stop block (673) is fixedly connected to the lower part of the buffer slide rods (672). A buffer spring (674) is sleeved on the surface of the buffer slide rods (672). Dampers (675) are fixedly connected to both ends of the upper part of the buffer seat (671). The upper part of the dampers (675) is fixedly connected to the mounting base (61).

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