Photovoltaic inverter capacitor support easy to maintain and efficient in heat dissipation

Abstract

The utility model discloses a photovoltaic inverter capacitor support easy to maintain and efficient in heat dissipation, which relates to the technical field of photovoltaic inverter capacitor supports and comprises a support body, a fan support, a bearing plate, first heat dissipation fins and fan blades. A bearing mechanism is arranged below the support bodies, the bearing mechanism comprises a bearing plate, a bolt, an insulating rubber pad and an isolation pipe, the insulating rubber pad is clamped between the bearing plate and the support bodies, the isolation pipe is used as a structural supporting piece between the two support bodies, and the bolt is isolated from a capacitor at the same time. A multi-dimensional heat dissipation system is formed through a three-dimensional heat dissipation structure of the hexagonal first heat dissipation fins and the strip-shaped second heat dissipation fins in combination with the diagonally distributed vent holes and fan forced convection, the working temperature of the capacitor is remarkably reduced, and the service life of the capacitor is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic inverter capacitor support technical field, concretely is a kind of photovoltaic inverter capacitor support of easy maintenance high -efficient heat dissipation. BACKGROUND

[0002] Photovoltaic inverter capacitor support is used to fix and support the capacitor in photovoltaic inverter, and it is an indispensable important component of inverter, and under the trend of high-density integration of photovoltaic inverter, the heat dissipation performance and maintenance convenience of capacitor support have become the key factors restricting the reliability of equipment. Industry measurement data shows that the service life of the internal capacitor of photovoltaic inverter will be shortened by 50% when its working temperature increases by 10℃, and under the high-temperature working condition in summer, the traditional support system often faces severe challenges: the existing integrated metal support has basic heat dissipation capacity, but lacks directional heat conduction design, resulting in the formation of a hot accumulation area above 80℃ at the bottom of the capacitor, especially for string-type inverters using large-capacity electrolytic capacitors, the surface temperature of the support can reach 92℃ under continuous operation, far exceeding the 70℃ upper limit recommended by capacitor manufacturers.

[0003] The existing technical improvement scheme has limitations, such as using a whole stamping forming support, which improves the structural strength, but does not solve the problem of single heat dissipation path, and the non-detachable design leads to destructive removal of capacitor replacement. The industry urgently needs a capacitor support solution that combines efficient heat management, quick maintenance and multi-specification adaptation to meet the reliability requirements of photovoltaic system throughout its life cycle. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of photovoltaic inverter capacitor support of easy maintenance high -efficient heat dissipation to solve the problems that the equipment in the market has no heat dissipation component, resulting in capacitor heat accumulation, affecting service life and safety, and the non-modular structure makes it inconvenient to repair when the mounting plate is damaged, with high maintenance cost and low efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of photovoltaic inverter capacitor support of easy maintenance high -efficient heat dissipation, including support body, fan support, bearing plate, first fin and fan blade;

[0006] The bearing mechanism is arranged below the support body, and the bearing mechanism includes a bearing plate, a bolt, an insulating rubber pad and an isolation tube, the insulating rubber pad is arranged between the bearing plate and the support body, the isolation tube is used as a structural support between the two support bodies, and the bolt is isolated from the capacitor.

[0007] As the preferred technical scheme of the utility model, the support body is of a rectangular structure, and a circular support structure is arranged on the inner side of the support body, a through hole is arranged on the bottom of the support body, a connecting port is arranged on the top corner of the side surface of the support body, the connecting port is of a double-layer structure, a first heat sink is fixedly connected to the bottom of the support body, and the first heat sink is arranged in a hexagonal structure and uniformly arranged.

[0008] The above technical scheme is adopted, the support body is of a rectangular structure, and a circular support structure is arranged on the inner side of the support body, for adapting to the cylindrical shape of the capacitor; the through hole is arranged on the bottom of the support body, so that the capacitor pin can pass through and be welded and fixed; the connecting port is arranged on the top corner of the side surface of the support body, the connecting port is of a double-layer structure, and the connecting strength is enhanced; the first heat sink is fixedly connected to the bottom of the support body, and the first heat sink is arranged in a hexagonal structure and uniformly arranged, so that the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0009] As the preferred technical scheme of the utility model, the support body is of a rectangular structure, and a circular support structure is arranged on the inner side of the support body, for adapting to the cylindrical shape of the capacitor; the through hole is arranged on the bottom of the support body, so that the capacitor pin can pass through and be welded and fixed; the connecting port is arranged on the top corner of the side surface of the support body, the connecting port is of a double-layer structure, and the connecting strength is enhanced; the first heat sink is fixedly connected to the bottom of the support body, and the first heat sink is arranged in a hexagonal structure and uniformly arranged, so that the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0010] The above technical scheme is adopted, the support body is of a rectangular structure, and a circular support structure is arranged on the inner side of the support body, for adapting to the cylindrical shape of the capacitor; the through hole is arranged on the bottom of the support body, so that the capacitor pin can pass through and be welded and fixed; the connecting port is arranged on the top corner of the side surface of the support body, the connecting port is of a double-layer structure, and the connecting strength is enhanced; the first heat sink is fixedly connected to the bottom of the support body, and the first heat sink is arranged in a hexagonal structure and uniformly arranged, so that the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0011] As the preferred technical scheme of the utility model, the support body is of a rectangular structure, and a circular support structure is arranged on the inner side of the support body, for adapting to the cylindrical shape of the capacitor; the through hole is arranged on the bottom of the support body, so that the capacitor pin can pass through and be welded and fixed; the connecting port is arranged on the top corner of the side surface of the support body, the connecting port is of a double-layer structure, and the connecting strength is enhanced; the first heat sink is fixedly connected to the bottom of the support body, and the first heat sink is arranged in a hexagonal structure and uniformly arranged, so that the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0012] The above technical scheme is adopted, the support body is of a rectangular structure, and a circular support structure is arranged on the inner side of the support body, for adapting to the cylindrical shape of the capacitor; the through hole is arranged on the bottom of the support body, so that the capacitor pin can pass through and be welded and fixed; the connecting port is arranged on the top corner of the side surface of the support body, the connecting port is of a double-layer structure, and the connecting strength is enhanced; the first heat sink is fixedly connected to the bottom of the support body, and the first heat sink is arranged in a hexagonal structure and uniformly arranged, so that the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0013] The above technical scheme is adopted, the support body is of a rectangular structure, and a circular support structure is arranged on the inner side of the support body, for adapting to the cylindrical shape of the capacitor; the through hole is arranged on the bottom of the support body, so that the capacitor pin can pass through and be welded and fixed; the connecting port is arranged on the top corner of the side surface of the support body, the connecting port is of a double-layer structure, and the connecting strength is enhanced; the first heat sink is fixedly connected to the bottom of the support body, and the first heat sink is arranged in a hexagonal structure and uniformly arranged, so that the heat dissipation area is increased and the heat dissipation efficiency is improved.

[0014] Adopt above technical scheme, support body is spliced through card slot and card block, the connecting port between spliced support body is pieced into round hole structure, the connecting port top is equipped with isolation pipe, the both ends of isolation pipe are provided with opening, and bolt is convenient to pass through;The connecting port below support body is embedded in insulating rubber pad, and the insulating rubber pad and the isolation pipe are penetrated by the bolt, and one bearing plate is sleeved on the both ends of the bolt, and the stable connection of the support body and the bearing plate is realized by bolt fastening;The bearing plate is slidably connected with the fan support, and the protrusion is arranged on the side of the bearing plate and matched with the limiting groove of the fan support, so that the fan assembly can be quickly installed or disassembled, and the maintenance convenience is improved.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1, efficient heat dissipation design: through the three-dimensional heat dissipation structure of hexagonal first fin and strip-shaped second fin, in combination with diagonal distribution's vent and fan forced convection, form multidimensional heat dissipation system, significantly reduce the working temperature of capacitor, prolong the service life of capacitor.

[0017] 2, easy maintenance: the fan support and the bearing plate are slidably connected through the limiting groove, and the fan can be quickly disassembled for cleaning or replacement;The support body of modularized splicing is convenient for single component maintenance or overall expansion, and the maintenance cost is reduced.

[0018] 3, electrical safety: the insulating rubber pad and the isolation pipe isolate the bolt from the capacitor, avoid the short circuit risk caused by the conduction of metal parts, and improve the safety of equipment operation.

[0019] 4, structural flexibility: the splicing structure of card slot and card block supports flexible combination of support body, and the support layout can be adjusted according to the internal space of inverter and the number of capacitors, and the adaptability is strong. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the side view structure schematic drawing of the utility model;

[0021] Figure 2 It is the support body and bearing plate structure schematic drawing of the utility model;

[0022] Figure 3 It is the front view structure schematic drawing of the utility model;

[0023] Figure 4 It is the support body overhead structure schematic drawing of the utility model;

[0024] Figure 5 It is the support body side view structure schematic drawing of the utility model;

[0025] Figure 6 It is the support body and first fin structure schematic drawing of the utility model;

[0026] Figure 7 It is the side view structure schematic diagram of the insulating rubber mat of the utility model;

[0027] Figure 8 It is the side view structure schematic diagram of the isolation pipe of the utility model;

[0028] Figure 9 It is the side view structure schematic diagram of the bearing plate of the utility model;

[0029] Figure 10 It is the structure schematic diagram of the limiting groove and the fan blade of the utility model.

[0030] In the drawing: 1, support body; 2, fan support; 3, bearing plate; 4, first radiating fin; 5, bolt; 6, motor; 7, insulating rubber mat; 8, isolation pipe; 9, clamping groove; 10, clamping block; 11, connecting port; 12, ventilation hole; 13, second radiating fin; 14, limiting groove; 15, fan blade. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] Please refer to Figures 1-10 The technical scheme of the utility model: an easy-to-maintain high-efficiency heat-dissipating photovoltaic inverter capacitor support, comprising a support body 1, a fan support 2, a bearing plate 3, a first radiating fin 4, a bolt 5, a motor 6, an insulating rubber mat 7, an isolation pipe 8, a clamping groove 9, a clamping block 10, a connecting port 11, a ventilation hole 12, a second radiating fin 13, a limiting groove 14 and a fan blade 15.

[0033] In the installation process, first, according to the internal space of the inverter and the capacitor installation demand, a plurality of support bodies 1 are spliced and combined through the clamping groove 9 and the clamping block 10, so that the connecting ports 11 between the support bodies 1 are spliced into a circular hole structure, then the isolation pipe 8 is sleeved above the connecting port 11, the insulating rubber mat 7 is embedded into the connecting port 11 below the support body 1, then the bolt 5 is sequentially threaded through the insulating rubber mat 7, the isolation pipe 8 and the bearing plate 3, the stable connection between the support body 1 and the bearing plate 3 is realized by tightening the bolt 5, then the fan support 2 is slidably installed on the bearing plate 3 through the cooperation of the protrusions on the side edges of the bearing plate 3 and the limiting groove 14, and the motor 6 and the fan blade 15 are installed in the fan support 2, finally, the capacitor is placed in the circular support structure on the inner side of the support body 1, so that the capacitor pin is welded and fixed through the through hole at the bottom of the support body 1.

[0034] Working principle: when using a kind of easy maintenance high-efficiency heat dissipation photovoltaic inverter capacitor support, the heat generated by capacitor work is conducted to the first fin 4 and the second fin 13 through the support body 1, the first fin 4 and the second fin 13 dissipate heat to the surrounding air by increasing the heat dissipation area, at the same time, the fan blade 15 is rotated by the motor 6, forced air flow is generated, the air flow forms convection through the vent 12, air flow is accelerated, and the heat on the fin and the hot air around the capacitor are taken away, so that the high-efficiency heat dissipation of capacitor is realized;

[0035] When maintenance is needed for the fan, the fan bracket 2 is only needed to be slid along the limiting groove 14, so that the fan assembly can be disassembled from the bearing plate 3 to clean or replace, when a support body 1 fails, the support body 1 can be disassembled alone to maintain or replace, without affecting the normal work of other assemblies.

[0036] Thus, a series of work is completed, and the content not described in detail in the specification belongs to the prior art known to those skilled in the art.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic inverter capacitor bracket that is easy to maintain and has high heat dissipation efficiency, comprising a bracket body (1); characterized in that: A bearing mechanism is provided below the bracket body (1), the bearing mechanism comprising a bearing plate (3), a bolt (5), an insulating rubber pad (7) and an isolation tube (8); an insulating rubber pad (7) is sandwiched between the bearing plate (3) and the bracket body (1); and an isolation tube (8) is provided between the two bracket bodies (1) as a structural support member, isolating the bolt (5) from the capacitor at the same time.

2. The easy-to-maintain and efficient heat dissipation photovoltaic inverter capacitor bracket according to claim 1, characterized in that: The bracket body (1) is a rectangular structure as a whole, and a circular bracket structure is provided inside the bracket body (1). A through hole is provided at the bottom of the bracket body (1), and a connecting port (11) is provided at a top corner of the side of the bracket body (1). The connecting port (11) is a double-layer structure. The bottom of the bracket body (1) is fixedly connected to the first heat sink (4), and the first heat sink (4) is evenly arranged in a hexagonal structure.

3. The easy-to-maintain and efficient heat dissipation photovoltaic inverter capacitor bracket according to claim 1, characterized in that: The bottom of the bracket body (1) is provided with ventilation holes (12), and the ventilation holes (12) are arranged in groups of two and are diagonally distributed. A second heat sink (13) is provided on the side of the bracket portion of the bracket body (1).

4. The easy-to-maintain and efficient heat dissipation photovoltaic inverter capacitor bracket according to claim 1, characterized in that: A card slot (9) is provided on the left side of the bracket body (1), and a card block (10) is fixedly connected to the right side of the bracket body (1), and the card block (10) and the card slot (9) are aligned with each other.

5. The easy-to-maintain and efficient heat dissipation photovoltaic inverter capacitor bracket according to claim 1, characterized in that: The bracket body (1) is spliced ​​with each other through the card slot (9) and the card block (10), and the connection port (11) is spliced ​​into a circular hole structure, an isolation tube (8) is set above the connection port (11), and both ends of the isolation tube (8) are provided with openings, and the connection port (11) below the bracket body (1) is embedded with a fixed insulating rubber pad (7), the insulating rubber pad (7) and the isolation tube (8) are penetrated by bolts (5), and a bearing plate (3) is respectively set at both ends of the bolt (5), the bearing plate (3) is slidably connected to the fan bracket (2), and a protrusion is set on the side of the bearing plate (3) and a limiting groove (14) of the fan bracket (2), and a fan blade (15) and a motor (6) are installed in the fan bracket (2).

Images