Storage battery protection device for photovoltaic power generation

Abstract

The utility model discloses a storage battery protection device for photovoltaic power generation, and relates to the technical field of photovoltaic power generation, the storage battery protection device comprises a box body, an anti-creeping mechanism is arranged in the box body and is used for guiding electricity into the ground to prevent people from being shocked when an electric wire leaks electricity, and the anti-creeping mechanism comprises an electricity guiding unit, a storage battery protection unit and a storage battery protection unit, comprising an electricity leading plate, and four fixing plates are fixedly installed on the front side of the electricity leading plate; a conductive unit; according to the protection unit, the electricity leading unit is arranged, an electric wire is placed between two electricity leading clamping plates, clamping springs push the electricity leading clamping plates to clamp the electric wire through elastic force of the clamping springs, meanwhile, electricity leading rods slide in electricity leading grooves, the electricity leading clamping plates make contact with the electric wire, and when electricity leaks on the electric wire, leaked electricity is conducted on the electricity leading plates through the electricity leading clamping plates and the electricity leading rods; and the electricity is conducted into the ground through the conductive unit, so that the electricity leakage on the box body is prevented from being shocked when people touch the electricity leakage, and the safety of users is protected.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, specifically to a battery protection device for photovoltaic power generation. Background Technology

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy. It mainly consists of three parts: solar panels, controllers, and inverters, with the main components being electronic devices.

[0003] According to the patent titled "A Protective Box for Photovoltaic Power Generation Batteries" (patent publication number: CN212571239U, patent publication date: 2021-02-19), the design is novel, convenient and practical, and enhances the sealing of the battery protective box, preventing excessive water from seeping into the box and affecting the normal use of the battery. In addition, when moving the protective box, the battery may shift and shake inside the box. The adjustable stabilizing mechanism can fix the battery, preventing the wires from becoming loose or worn during transportation.

[0004] Based on the aforementioned existing technology, the current photovoltaic power generation battery protection devices still have the following problems. The existing photovoltaic power generation battery protection devices are usually connected to the battery inside the protection device through wires. However, after long-term use and exposure to sunlight, the wires will age and leak electricity. When people touch the protection device, they may be shocked. Therefore, this utility model provides a photovoltaic power generation battery protection device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a protective device for photovoltaic power generation batteries, which solves the following problems of existing protective devices for photovoltaic power generation batteries: existing protective devices for photovoltaic power generation batteries are usually connected to the battery inside the protective device by wires. However, after long-term use and exposure to sunlight, the wires will age and leak electricity. When people touch the protective device, they may be shocked.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective device for a photovoltaic power generation battery, comprising a housing, wherein the housing is equipped with a leakage prevention mechanism to conduct electricity to the ground when the wire leaks, preventing electric shock to personnel. The leakage prevention mechanism includes:

[0007] The current-leading unit is located inside the rear side of the enclosure. It includes a current-leading plate, and four fixing plates are fixedly installed on the front side of the current-leading plate. A sliding column is slidably installed inside the fixing plate, and a current-leading clamping plate is fixedly installed at one end of the sliding column to clamp and lead the wire.

[0008] The conductive unit, located on the left side of the power-leading unit, includes four conductive posts fixedly installed through the bottom of the box and used to conduct the electricity led by the power-leading unit into the ground.

[0009] The protective unit is located at the bottom of the enclosure and is used to protect the conductive posts.

[0010] Preferably, the current-leading unit further includes a current-leading rod fixedly installed on one side of the current-leading clamping plate, a clamping spring is sleeved on the outside of the sliding column, two current-leading grooves are opened inside the current-leading plate, and the current-leading rod is pushed by the clamping spring to adapt and slide inside the current-leading groove to conduct the electricity of the exposed wire onto the current-leading plate, and a T-shaped plate is fixedly installed on the rear side of the current-leading plate.

[0011] Preferably, the conductive unit further includes a conductive wire fixedly installed on the left side of the lead plate, and the conductive posts are fixedly connected by a connecting wire to achieve uniform conductivity, and the bottom end of the conductive wire is fixedly connected to the connecting wire.

[0012] Preferably, the protective unit includes four fixed cylinders fixedly installed at the bottom of the housing, and the conductive post is located inside the fixed cylinder. A reset spring is installed inside the fixed cylinder. A limit groove is opened inside the fixed cylinder. A pressure plate is slidably installed inside the fixed cylinder. Limit blocks are fixedly installed on both sides of the pressure plate. The limit blocks are located inside the limit groove and slide to limit the movement of the pressure plate. A sleeve is fixedly installed at the bottom of the pressure plate.

[0013] Preferably, a partition plate is fixedly installed inside the enclosure, and the bottom end of the conductive wire passes through the partition plate and connects to the connecting wire. A rectangular groove is opened inside the partition plate, and heat dissipation pipes are fixedly installed on both the left and right sides of the enclosure to dissipate heat inside the enclosure. Several soft rubber strips are fixedly installed on the top of the partition plate, and the battery is installed on the top of the soft rubber strips to protect the bottom of the battery from bumps. Right-angle rubber sleeves are fixedly installed at the four corners of the top of the partition plate to protect the four corners of the battery from bumps.

[0014] Preferably, a T-shaped groove is provided on the rear side of the inner side of the housing, and the T-shaped plate is adapted to slide into the T-shaped groove to realize the assembly and disassembly of the power supply unit.

[0015] This utility model provides a protective device for photovoltaic power generation batteries. Compared with the prior art, it has the following advantages:

[0016] (1) The photovoltaic power generation battery protection device is equipped with a current-leading unit. The wire is placed between two current-leading clamping plates. The clamping spring pushes the current-leading clamping plate to clamp the wire through its own elasticity. At the same time, the current-leading rod slides inside the current-leading groove. The current-leading clamping plate contacts the wire. When there is leakage on the wire, the leakage electricity is conducted to the current-leading plate through the current-leading clamping plate and the current-leading rod, and then conducted to the ground through the conductive unit. This prevents electric shock when personnel touch the box due to leakage electricity, thus protecting the safety of the user.

[0017] (2) The photovoltaic power generation battery protection device is equipped with a protection unit. When the box is placed on the ground, the sleeve moves upward to contact the ground and squeezes the reset spring through the pressure plate, so that the conductive column contacts the ground. When the box is lifted off the ground, the reset spring pushes the pressure plate and sleeve downward to wrap the conductive column, thereby protecting the conductive column and preventing personnel from being injured by electric shock when they touch the conductive column. Attached Figure Description

[0018] Figure 1 This is a right-side perspective view of the structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a cross-sectional perspective view of the present invention.

[0021] Figure 4 This is a partially hidden three-dimensional cross-sectional view of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the power-leading unit of this utility model.

[0023] Figure 6 This is a partial cross-sectional perspective view of the present invention.

[0024] In the diagram: 1-Box body, 2-Anti-leakage mechanism, 21-Electric current guiding unit, 211-Electric current guiding plate, 212-T-shaped plate, 213-Electric current guiding groove, 214-Fixing plate, 215-Sliding column, 216-Electric current guiding clamping plate, 217-Clamping spring, 218-Electric current guiding rod, 22-Conductive unit, 221-Conductive column, 222-Connecting wire, 223-Conductive wire, 23-Protective unit, 231-Fixing cylinder, 232-Reset spring, 233-Limiting groove, 234-Pressure plate, 235-Limiting block, 236-Sleeve, 3-Heat dissipation pipe, 4-Divider plate, 5-Right angle rubber sleeve, 6-Rectangular groove, 7-Soft rubber strip, 8-T-shaped groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 This utility model provides a technical solution:

[0027] A protective device for photovoltaic power generation batteries includes a housing 1. The housing 1 has an anti-leakage mechanism 2 inside, which conducts electricity to the ground to prevent electric shock when a wire leaks current. The anti-leakage mechanism 2 includes:

[0028] The current-leading unit 21 is located inside the rear side of the housing 1, including a current-leading plate 211. Four fixing plates 214 are fixedly installed on the front side of the current-leading plate 211, and a sliding column 215 is slidably installed inside the fixing plate 214. A current-leading clamping plate 216 is fixedly installed at one end of the sliding column 215 to clamp and lead the wire.

[0029] The conductive unit 22 is located on the left side of the power-leading unit 21, and includes four conductive posts 221 that are fixedly installed through the bottom of the housing 1 and are used to conduct the electricity led by the power-leading unit 21 into the ground.

[0030] The protective unit 23 is located at the bottom of the housing 1 and is used to protect the conductive post 221.

[0031] The wire is placed between two current-leading clamping plates 216. The clamping spring 217 pushes the current-leading clamping plates 216 to clamp the wire through its own elasticity. At the same time, the current-leading rod 218 slides inside the current-leading groove 213. The current-leading clamping plates 216 contact the wire. When there is leakage on the wire, the leakage current is conducted to the current-leading plate 211 through the current-leading clamping plate 216 and the current-leading rod 218, and then conducted to the ground through the conductive unit 22. This prevents electric shock when personnel touch the box 1 due to leakage, thus protecting the safety of the user.

[0032] In this embodiment, the current-leading unit 21 further includes a current-leading rod 218 fixedly installed on one side of the current-leading clamping plate 216. A clamping spring 217 is sleeved on the outside of the sliding column. Two current-leading grooves 213 are opened inside the current-leading plate 211. The current-leading rod 218 is pushed by the clamping spring 217 to adapt and slide inside the current-leading groove 213 to conduct the exposed wire onto the current-leading plate 211. A T-shaped plate 212 is fixedly installed on the rear side of the current-leading plate 211.

[0033] The current-leading rod 218 is pushed and adapted to slide inside the current-leading groove 213 by the clamping spring 217, thereby realizing the conduction of the current guided by the current-leading clamping plate 216 onto the current-leading plate 211, and the movement of the current-leading clamping plate 216 is limited by the sliding of the current-leading rod 218.

[0034] In this embodiment, the conductive unit 22 further includes a conductive wire 223 fixedly installed on the left side of the lead plate 211, and the conductive post 221 is fixedly connected through the connecting wire 222 to achieve uniform conductivity, and the bottom end of the conductive wire 223 is fixedly connected to the connecting wire 222.

[0035] The conductive wire 223 connects the lead plate 211 and the connecting wire 222, thereby introducing the electricity on the lead plate 211 into the temporal part of the four conductive posts 221, and then introducing it into the ground through the conductive posts 221.

[0036] In this embodiment, the protective unit 23 includes four fixed cylinders 231 fixedly installed at the bottom of the housing 1, and the conductive post 221 is located inside the fixed cylinder 231. A reset spring 232 is installed inside the fixed cylinder 231. A limit groove 233 is opened inside the fixed cylinder 231. A pressure plate 234 is slidably installed inside the fixed cylinder 231. Limit blocks 235 are fixedly installed on both sides of the pressure plate 234. The limit blocks 235 are located inside the limit groove 233 and slide to limit the movement of the pressure plate 234. A sleeve 236 is fixedly installed at the bottom of the pressure plate 234.

[0037] When the housing 1 is placed on the ground, the sleeve 236 moves upward in contact with the ground and squeezes the return spring 232 through the pressure plate 234, so that the conductive post 221 contacts the ground. When the housing 1 is lifted off the ground, the return spring 232 pushes the pressure plate 234 and the sleeve 236 downward through its own elasticity to wrap the conductive post 221, thereby protecting the conductive post 221 and preventing personnel from touching the conductive post 221 and being injured by electric shock.

[0038] In this embodiment, a partition plate 4 is fixedly installed inside the housing 1, and the bottom end of the conductive wire 223 passes through the partition plate 4 and is connected to the connecting wire 222. A rectangular groove 6 is opened inside the partition plate 4, and heat dissipation pipes 3 are fixedly installed on both the left and right sides of the housing 1 to dissipate heat inside the housing 1. Several soft rubber strips 7 are fixedly installed on the top of the partition plate 4, and the battery is installed on the top of the soft rubber strips 7 to protect the bottom of the battery from bumps. Right-angle rubber sleeves 5 are fixedly installed at the four corners of the top of the partition plate 4 to protect the four corners of the battery from bumps.

[0039] The user opens the top cover of the housing 1 using the bolts on the top of the housing 1, places the battery inside the housing 1, and the right-angle rubber sleeve 5 wraps around the four corners of the battery to protect the four corners. The bottom of the battery contacts the top of the soft rubber strip 7, thereby protecting the bottom of the battery and providing a cushioning effect.

[0040] The heat generated by the internal battery of the enclosure 1 enters the space below the partition plate 4 through the rectangular groove 6, and then is discharged through the heat dissipation pipes 3 on both sides of the enclosure 1. A sloping canopy is provided on one side of the heat dissipation pipes 3 to prevent rainwater from entering the interior of the enclosure 1.

[0041] In this embodiment, a T-shaped groove 8 is provided on the rear side of the inner side of the housing 1, and the T-shaped plate 212 is adapted to slide into the T-shaped groove 8 to realize the assembly and disassembly of the power supply unit 21 as a whole.

[0042] The power supply unit 21 is installed as a whole by sliding into the T-shaped groove 8 through the T-shaped plate 212, which also facilitates the overall disassembly of the power supply unit 21 and makes it easy to repair and replace the power supply unit 21.

[0043] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0044] During operation, the user first opens the top cover of the box 1 using the bolts on the top of the box 1, puts the battery into the inside of the box 1, wraps the four corners of the battery with the right-angle rubber sleeve 5, and the bottom of the battery contacts the top of the soft rubber strip 7. Then the wires are connected to the battery.

[0045] Next, the wire is placed between the two current-leading clamping plates 216. The clamping spring 217 pushes the current-leading clamping plates 216 to clamp the wire through its own elasticity. At the same time, the current-leading rod 218 slides inside the current-leading groove 213. The current-leading clamping plates 216 contact the wire, and the wire passes through the wire hole of the top cover of the box 1, fixing the top cover to the top of the box 1.

[0046] Finally, the box 1 is placed on the ground. The sleeve 236 moves upward in contact with the ground and squeezes the reset spring 232 through the pressure plate 234, so that the conductive post 221 contacts the ground. When there is leakage on the wire, the leakage is conducted to the current-leading plate 211 through the current-leading clamping plate 216 and the current-leading rod 218, and then transmitted to the ground through the conductive wire 223, the connecting wire 222 and the four conductive posts 221.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for a photovoltaic power generation battery, comprising a housing (1), characterized in that: The box (1) is equipped with a leakage protection mechanism (2) to conduct electricity to the ground when the wire leaks electricity, preventing people from being shocked. The leakage protection mechanism (2) includes: The current-leading unit (21) is located inside the rear side of the housing (1), including a current-leading plate (211). Four fixing plates (214) are fixedly installed on the front side of the current-leading plate (211), and a sliding column (215) is slidably installed inside the fixing plate (214). A current-leading clamping plate (216) is fixedly installed at one end of the sliding column (215) to clamp and lead the wire. The conductive unit (22) is located on the left side of the power-leading unit (21), including four conductive posts (221) fixedly installed through the bottom of the box (1) and used to conduct the electricity led by the power-leading unit (21) into the ground. The protective unit (23) is located below the housing (1) and is used to protect the conductive post (221).

2. The photovoltaic power generation battery protection device according to claim 1, characterized in that: The current-leading unit (21) also includes a current-leading rod (218) fixedly installed on one side of the current-leading clamping plate (216). A clamping spring (217) is sleeved on the outside of the sliding column (215). Two current-leading grooves (213) are opened inside the current-leading plate (211). The current-leading rod (218) is pushed by the clamping spring (217) to slide inside the current-leading groove (213) to conduct the exposed wire onto the current-leading plate (211). A T-shaped plate (212) is fixedly installed on the rear side of the current-leading plate (211).

3. The photovoltaic power generation battery protection device according to claim 1, characterized in that: The conductive unit (22) also includes a conductive wire (223) fixedly installed on the left side of the lead plate (211), and the conductive post (221) is fixedly connected through the connecting wire (222) to achieve uniform conductivity, and the bottom end of the conductive wire (223) is fixedly connected to the connecting wire (222).

4. The photovoltaic power generation battery protection device according to claim 1, characterized in that: The protective unit (23) includes four fixed cylinders (231) fixedly installed at the bottom of the box (1), and the conductive post (221) is located inside the fixed cylinder (231). A return spring (232) is installed inside the fixed cylinder (231). A limit groove (233) is opened inside the fixed cylinder (231). A pressure plate (234) is slidably installed inside the fixed cylinder (231). Limit blocks (235) are fixedly installed on both sides of the pressure plate (234). The limit blocks (235) are located inside the limit groove (233) and slide to limit the movement of the pressure plate (234). A sleeve (236) is fixedly installed at the bottom of the pressure plate (234).

5. A battery protection device for photovoltaic power generation according to claim 3, characterized in that: A partition plate (4) is fixedly installed inside the box (1), and the bottom end of the conductive wire (223) passes through the partition plate (4) and is connected to the connecting wire (222). A rectangular groove (6) is opened inside the partition plate (4), and heat dissipation pipes (3) are fixedly installed on both the left and right sides of the box (1) to dissipate heat inside the box (1). Several soft rubber strips (7) are fixedly installed on the top of the partition plate (4), and the battery is installed on the top of the soft rubber strips (7) to protect the bottom of the battery from bumps. Right-angle rubber sleeves (5) are fixedly installed on the four corners of the top of the partition plate (4) to protect the four corners of the battery from bumps.

6. A protective device for a photovoltaic power generation battery according to claim 2, characterized in that: The rear side of the box (1) is provided with a T-shaped groove (8), and the T-shaped plate (212) is adapted to slide into the T-shaped groove (8) to realize the assembly and disassembly of the power supply unit (21).

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