A capacitor for photovoltaic power generation

Abstract

The utility model relates to photovoltaic power generation's capacitor technical field especially relates to a kind of capacitor for photovoltaic power generation, including protective outer shell, the inside of protective outer shell is provided with capacitor, the left and right sides of capacitor top are all provided with positive and negative pole pin, the upper end surface of protective outer shell is provided with sealing element, the left and right sides in sealing element inside are all set up through-hole, the through-hole outside is set up and is located in the insertion slot of sealing element interior, insertion slot is annular array and has four, one side of four insertion slots is all set up and is located in the positioning slot, positioning slot is annular array and has four, the outer surface of protective outer shell is set up and is located in the radiating groove, radiating groove is annular array and has multiple, the inside of radiating groove is all provided with radiating piece, the inside of protective outer shell is provided with radiating assembly;The utility model is installed with protective sleeve to positive and negative pole pin outside sleeve, improve its protection effect, while the effect of capacitor is strengthened to radiate, prolong service life, improve security.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology for photovoltaic power generation, and in particular to a capacitor used in photovoltaic power generation. Background Technology

[0002] A capacitor consists of two conductors close to each other with a non-conductive insulating medium sandwiched in between. The capacitance of a capacitor is numerically equal to the ratio of the charge on one of the conducting plates to the voltage between the two plates. Capacitors play an important role in circuits such as tuning, bypassing, coupling, and filtering. In photovoltaic power generation systems, capacitors are the core components that ensure the efficiency and stability of power conversion, and mainly undertake key functions such as filtering, energy storage, and voltage support.

[0003] The prior art patent CN213459423U discloses a capacitor for photovoltaic power generation, including a capacitor body. The lower end of the capacitor body has a fixing structure, which includes a fixing plate, a positioning post, a connecting gasket, and a through hole. The outer surface of the capacitor body has an inspection port, and the interior of the inspection port has a sealing plate. The inner side of the sealing plate has a movable sealing ring. This utility model's capacitor for photovoltaic power generation, through the fixed structure, further enhances the overall stability of the capacitor, resulting in better stability. The sealing plate, movable sealing ring, fixed sealing ring, rotating knob, connecting shaft, connecting head, and limiting head facilitate the opening and closing of the sealing plate for capacitor maintenance. Simultaneously, the fit between the movable and fixed sealing rings effectively enhances the capacitor's sealing performance, resulting in better overall performance.

[0004] However, after prolonged use, the internal temperature of existing capacitors used for photovoltaic power generation rises, which accelerates the aging of the capacitors and may lead to their explosion. Their existing heat dissipation is poor, posing certain safety hazards. In addition, when not in use, their positive and negative leads are exposed, making them susceptible to collisions and bending, which affects their subsequent use and increases their purchase cost. Utility Model Content

[0005] To overcome the problems that existing capacitors used for photovoltaic power generation will cause internal temperature to rise after long-term use, which poses certain safety hazards due to poor heat dissipation, and the positive and negative leads are prone to bending due to impact without the protection of protective sleeves, affecting their subsequent normal use.

[0006] The technical solution of this utility model is as follows: A capacitor for photovoltaic power generation includes a protective outer shell, a capacitor is disposed inside the protective outer shell, positive and negative leads are disposed on the left and right sides of the upper part of the capacitor, a sealing element is disposed on the upper end surface of the protective outer shell, through holes are opened on the left and right sides inside the sealing element, slots are opened outside the through holes and located inside the sealing element, four slots are arranged in a ring array, a positioning groove is opened on one side of each of the four slots, four positioning grooves are arranged in a ring array, heat dissipation grooves are opened on the outer surface of the protective outer shell, multiple heat dissipation grooves are arranged in a ring array, heat dissipation elements are disposed inside each heat dissipation groove, heat dissipation components are disposed inside the protective outer shell, a protective sleeve is sleeved on the outside of the positive and negative leads, a first annular disk is fixedly connected to the lower end surface of the protective sleeve, a connecting rod is fixedly connected to the lower end surface of the first annular disk, four connecting rods are arranged in a ring array, a second annular disk is fixedly connected to the lower end surface of the four connecting rods, and a plug-in component is fixedly connected to the lower end surface of the second annular disk, four plug-in components are arranged in a ring array.

[0007] Preferably, the inner wall of the protective housing is provided with a sealing groove, and the sealing element includes a sealing gasket. The sealing gasket is snapped into the inside of the sealing groove, and both positive and negative pins pass through the sealing gasket through two through holes.

[0008] Preferably, the plug-in assembly includes a plug rod, and a positioning block is fixedly connected to the outside of the plug rod. There are four positioning blocks in a circular array. The plug rod is inserted into the slot, and the positioning block slides into the positioning groove for fixing the protective sleeve.

[0009] Preferably, the first annular disk is fitted outside the positive and negative pins, and the second annular disk is also fitted outside the positive and negative pins to ensure the vertical stability of the positive and negative pins.

[0010] Preferably, the heat sink includes heat sinks, which are fixed in a vertical array inside the heat sink to improve the heat dissipation efficiency of the capacitor.

[0011] Preferably, the heat dissipation component includes cooling pipes arranged in a ring shape on the inner wall of the protective housing to make multi-faceted contact with the outer surface of the capacitor and improve the cooling effect.

[0012] Preferably, one end of the cooling pipe has a water inlet, and the other end of the cooling pipe, away from the water inlet, has a drain outlet, which is used for the circulation cooling effect of the cooling water entering and exiting.

[0013] The beneficial effects of this utility model are:

[0014] 1. The capacitor used for photovoltaic power generation has a protective outer casing installed on the outside of the capacitor. The heat dissipation grooves and heat sinks on the outer surface are used to efficiently dissipate heat from the internal capacitor. At the same time, cooling pipes are used to enhance the heat dissipation effect and extend the service life of the capacitor.

[0015] 2. The capacitor used for photovoltaic power generation has protective sleeves on the positive and negative leads to prevent damage or bending of the leads when not in use, thereby reducing costs and improving its efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the capacitor used for photovoltaic power generation according to this utility model.

[0017] Figure 2 The image shown is a top view of the overall structure of the capacitor used for photovoltaic power generation according to this utility model.

[0018] Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the three-dimensional structure at point A;

[0019] Figure 4 The diagram shown is a partial structural schematic of the protective sleeve of this utility model;

[0020] Figure 5 The diagram shown is a partial internal structure of the protective outer shell of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Protective outer casing; 2. Positive and negative pins; 3. Protective sleeve; 4. Heat sink; 5. Heat sink fin; 6. Sealing gasket; 7. Through hole; 8. Slot; 9. Positioning slot; 10. First annular disk; 11. Connecting rod; 12. Second annular disk; 13. Insert rod; 14. Positioning block; 15. Cooling pipe; 16. Water inlet; 17. Drain outlet. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment: a capacitor for photovoltaic power generation, including a protective outer shell 1, a capacitor disposed inside the protective outer shell 1, positive and negative leads 2 disposed on both the left and right sides of the upper part of the capacitor, a sealing element disposed on the upper end face of the protective outer shell 1, through holes 7 being formed on both the left and right sides inside the sealing element, a sealing groove being formed on the inner wall of the protective outer shell 1, the sealing element including a sealing gasket 6, the sealing gasket 6 being snapped into the inside of the sealing groove, the two positive and negative leads 2 passing through the two through holes 7 and the sealing gasket 6, and slots 8 located inside the sealing element being formed outside the through holes 7, the slots 8 being arranged in a circular array of four, one side of each of the four slots 8 being The protective housing 1 has four positioning slots arranged in a ring array. The outer surface of the protective housing 1 has multiple heat dissipation slots arranged in a ring array. Each heat dissipation slot 4 has a heat dissipation component inside. The protective housing 1 has a heat dissipation assembly inside. The positive and negative pins 2 are fitted with protective sleeves 3. The lower end face of the protective sleeve 3 is fixedly connected to a first annular disk 10. The lower end face of the first annular disk 10 is fixedly connected to a connecting rod 11 arranged in a ring array. The lower end face of the four connecting rods 11 is fixedly connected to a second annular disk 12. The lower end face of the second annular disk 12 is fixedly connected to a plug-in assembly arranged in a ring array.

[0024] The plug-in assembly includes a plug rod 13, to which a positioning block 14 is fixedly connected. Four positioning blocks 14 are arranged in a circular array. The plug rod 13 is inserted into the slot 8, and the positioning blocks 14 slide into the positioning groove 9 for fixing the protective sleeve 3. The first annular disc 10 is sleeved on the outside of the positive and negative pins 2. The second annular disc... The protective sleeve 3 is also sleeved on the outside of the positive and negative pins 2 to ensure the vertical stability of the positive and negative pins 2. The protective sleeve 3 is sleeved on the outside of the positive and negative pins 2, and the first annular disk 10 is sleeved on the outside of the positive and negative pins 2. At the same time, the second annular disk 12 is also sleeved on the outside of the positive and negative pins 2. The four insert rods 13 are inserted into the slot 8, and the positioning block 14 slides into the positioning groove 9 to fix the protective sleeve 3, thereby improving the protection of the positive and negative pins 2 and preventing them from bending due to collision.

[0025] The heat dissipation component includes heat sinks 5, which are vertically arrayed and fixed inside the heat dissipation grooves 4 to improve the heat dissipation efficiency of the capacitor. The heat dissipation assembly includes cooling pipes 15, which are arranged in a ring shape on the inner wall of the protective housing 1 to make multi-faceted contact with the outer surface of the capacitor and improve the cooling effect. One end of the cooling pipe 15 has a water inlet 16, and the other end of the cooling pipe 15 away from the water inlet 16 has a drain outlet 17 for the circulation cooling effect of the cooling water entering and exiting. The internal cooling pipes 15 are wound in a ring shape to improve the contact with the outer surface of the capacitor. The circulation effect of the cooling water entering through the water inlet 16 and exiting through the drain outlet 17 improves the cooling effect. At the same time, the heat dissipation grooves 4 on the surface of the protective housing 1 and the multiple heat sinks 5 work together to improve the heat dissipation effect and prevent the internal temperature of the capacitor from being too high, which could cause certain safety hazards.

[0026] During operation, four insert rods 13 are inserted into slots 8, and simultaneously, positioning blocks 14 slide into positioning grooves 9 to secure the protective sleeve 3. The protective sleeve 3, the first annular disk 10, and the second annular disk 12 are all fitted over the positive and negative leads 2 to enhance protection of the leads 2 and prevent bending caused by collisions. The internal cooling pipe 15 is wound in a ring shape to increase contact with the outer surface of the capacitor, allowing cooling water to circulate through the inlet 16 and outlet 17, thus improving cooling efficiency. At the same time, the heat dissipation grooves 4 on the surface of the protective outer casing 1, in conjunction with multiple heat sinks 5, enhance heat dissipation and prevent the internal temperature of the capacitor from becoming too high, thus avoiding potential safety hazards.

[0027] Through the above steps, a protective outer casing 1 is installed on the outside of the capacitor, and the heat dissipation grooves 4 and heat sinks 5 on its outer surface are used to efficiently dissipate heat from the internal capacitor. At the same time, the cooling pipe 15 is used to enhance the heat dissipation effect and extend the service life of the capacitor. This solves the problem that the internal temperature of existing capacitors used for photovoltaic power generation will rise after long-term use, and there are certain safety hazards due to poor heat dissipation. In addition, the positive and negative leads 2 are easily bent by impact without the protection of the protective sleeve 3, which affects their subsequent normal use.

Claims

1. A capacitor for photovoltaic power generation, comprising a protective outer casing (1), characterized in that: A capacitor is installed inside the protective housing (1). Positive and negative leads (2) are provided on both the left and right sides above the capacitor. A sealing element is provided on the upper end face of the protective housing (1). Through holes (7) are provided on both the left and right sides inside the sealing element. Slots (8) located inside the sealing element are provided on the outside of the through holes (7). There are four slots (8) arranged in a ring array. A positioning groove (9) is provided on one side of each of the four slots (8). There are four positioning grooves (9) arranged in a ring array. A heat dissipation groove (4) is provided on the outer surface of the protective housing (1). There are multiple ring arrays, and heat dissipation components are provided inside the heat dissipation slots (4). Heat dissipation components are provided inside the protective shell (1). Protective sleeves (3) are sleeved on the outside of the positive and negative pins (2). A first ring disk (10) is fixedly connected to the lower end face of the protective sleeve (3). A connecting rod (11) is fixedly connected to the lower end face of the first ring disk (10). There are four connecting rods (11) arranged in a ring array. A second ring disk (12) is fixedly connected to the lower end face of the four connecting rods (11). A plug-in component is fixedly connected to the lower end face of the second ring disk (12).

2. A capacitor for photovoltaic power generation according to claim 1, characterized in that: The inner wall of the protective outer shell (1) is provided with a sealing groove. The sealing element includes a sealing gasket (6). The sealing gasket (6) is snapped into the inside of the sealing groove. The two positive and negative pins (2) pass through the sealing gasket (6) through two through holes (7).

3. A capacitor for photovoltaic power generation according to claim 1, characterized in that: The plug-in assembly includes a plug rod (13), and a positioning block (14) is fixedly connected to the outside of the plug rod (13). There are four positioning blocks (14) in a circular array. The plug rod (13) is inserted into the slot (8), and the positioning block (14) slides into the positioning groove (9) for fixing the protective sleeve (3).

4. A capacitor for photovoltaic power generation according to claim 1, characterized in that: The first annular disk (10) is sleeved on the outside of the positive and negative pins (2), and the second annular disk (12) is also sleeved on the outside of the positive and negative pins (2) to ensure the vertical stability of the positive and negative pins (2).

5. A capacitor for photovoltaic power generation according to claim 1, characterized in that: The heat sink includes heat sinks (5), which are arranged in a vertical array and fixed inside the heat sink (4) to improve the heat dissipation efficiency of the capacitor.

6. A capacitor for photovoltaic power generation according to claim 1, characterized in that: The heat dissipation component includes cooling pipes (15), which are arranged in a ring shape on the inner wall of the protective housing (1) to make multi-faceted contact with the outer surface of the capacitor and improve the cooling effect.

7. A capacitor for photovoltaic power generation according to claim 6, characterized in that: A water inlet (16) is provided at one end of the cooling pipe (15), and a drain outlet (17) is provided at the other end of the cooling pipe (15) away from the water inlet (16) for the circulation cooling effect of the cooling water entering and exiting.

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