CN210183748U

CN210183748U - Solar photovoltaic inverter

Info

Publication number: CN210183748U
Application number: CN201920506031.2U
Authority: CN
Inventors: 虞希清
Original assignee: ZHEJIANG DELIGHT MICROELECTRONICS CO Ltd
Current assignee: ZHEJIANG DELIGHT MICROELECTRONICS CO Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-03-24
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a solar photovoltaic inverter, which comprises an inverter body, wherein the inverter body comprises a box body, a box door arranged on one side surface of the box body, a heat dissipation plate arranged on the other side surface of the box body and a heat dissipation mechanism arranged on the heat dissipation plate, a cold collecting plate is fixedly arranged on the inner side wall of the heat radiating plate, a gap is arranged between the cold collecting plate and the heat radiating plate, fixing plates are respectively arranged on two opposite sides of the outer side wall of the heat radiating plate, the heat dissipation mechanism comprises a plurality of semiconductor refrigeration sheets uniformly distributed in the gap, a plurality of heat dissipation fins uniformly distributed on the outer side wall of the heat dissipation plate and corresponding to the position between the two fixing plates, and a plurality of heat dissipation fans fixed on the fixing plates, a plurality of heat dissipation holes are uniformly distributed on the heat dissipation fins, and air outlets are formed in the positions, corresponding to the heat dissipation fans, on the fixing plates. The utility model has the advantages of reasonable design, the radiating effect and dustproof dampproofing effectual are favorable to the popularization and application of marketization.

Description

Solar photovoltaic inverter

Technical Field

The utility model relates to a solar power system technical field, concretely relates to solar photovoltaic inverter.

Background

With the popularization of new energy concept, the application of solar photovoltaic power generation is wider and wider. And under the condition that a solar photovoltaic power generation system is mature day by day, the solar photovoltaic inverter is also developed rapidly. The solar photovoltaic inverter is the heart of the solar photovoltaic power generation system, when the solar photovoltaic inverter is used, all electricity generated by the solar cell panel can be output outwards only through the processing of the inverter, and the inverter plays an important role in the operation of the whole set of solar photovoltaic power generation system.

In the prior art, a solar photovoltaic inverter can be used for indoor installation when in use and can also be used for outdoor installation when conditions are not allowed, but the solar photovoltaic inverter used for outdoor installation needs to have excellent heat dissipation and waterproof and dustproof performances. However, the solar photovoltaic inverter used in the current market still cannot meet the requirements of water resistance and dust resistance when meeting the condition of poor external weather conditions, so that the service life of the inverter is greatly shortened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provide a structural design is reasonable, radiating effect and dustproof dampproofing effectual solar photovoltaic inverter.

The utility model adopts the following technical scheme:

a solar photovoltaic inverter comprises an inverter body, wherein the inverter body comprises a box body, a box door arranged on one side face of the box body, a heat dissipation plate arranged on the other side face of the box body and a heat dissipation mechanism arranged on the heat dissipation plate, a heat collection plate is fixedly arranged on the inner side wall of the heat dissipation plate, a gap is arranged between the heat collection plate and the heat dissipation plate, fixing plates with right-angle structures are respectively arranged on two opposite sides of the outer side wall of the heat dissipation plate, the heat dissipation mechanism comprises a plurality of semiconductor refrigeration sheets uniformly distributed in the gap, a plurality of heat dissipation fins uniformly distributed on the outer side wall of the heat dissipation plate and corresponding to the position between the two fixing plates, and a plurality of heat dissipation fans fixed on the fixing plates, the refrigeration surfaces of the semiconductor refrigeration sheets are attached to the heat collection plate, the heating surfaces of the semiconductor refrigeration, the two adjacent radiating holes in the radiating fins are staggered, and air outlets are formed in the positions, corresponding to the radiating fans, on the fixing plates.

As an optimized technical proposal of the utility model, the top end and the bottom end of the fixed plate are both fixedly provided with a baffle plate extending towards the direction of the heat dissipation fins.

As an optimal technical scheme of the utility model, all coating has one deck heat conduction silicone grease on the side of laminating mutually with semiconductor refrigeration piece on the heating panel and on the side of laminating mutually with semiconductor refrigeration piece on the cold-collecting plate.

For the preferred technical scheme of the utility model, the heat dissipation fin and the heat dissipation plate are of an integrated structure.

The utility model has the advantages that:

the utility model has the advantages of reasonable design, the radiating mechanism radiating effect who wherein sets up is good, and need not to carry out the convection current with outside air and the inside air of box when the heat dissipation, has avoided leading to the poor problem of box dustproof and waterproof effect for reaching the radiating effect is good to can improve the dustproof and the water-proof effects of box greatly.

Drawings

Fig. 1 is a front view of a three-dimensional structure of an inverter body according to the present invention;

fig. 2 is a schematic cross-sectional view of an inverter body according to the present invention;

the symbols in the drawings illustrate that:

the refrigerator comprises a refrigerator body 1, a refrigerator door 2, a heat dissipation plate 3, a cold collection plate 4, a gap 5, a fixing plate 6, a semiconductor refrigeration sheet 7, heat dissipation fins 8, a heat dissipation fan 9, heat dissipation holes 10 and a baffle 11.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a solar photovoltaic inverter includes an inverter body, where the inverter body includes a box body 1, a box door 2 disposed on one side surface of the box body 1, a heat dissipation plate 3 disposed on the other side surface of the box body 1 opposite to the box door 2, and a heat dissipation mechanism disposed on the heat dissipation plate 3, and in this embodiment, the heat dissipation plate 3 and the box body 1 are fixedly connected by welding;

in this embodiment, the cold collecting plate 4 is connected with the heat dissipating plate 3 through a screw, and a gap 5 is provided between the cold collecting plate 4 and the heat dissipating plate 3, so that when the electronic component (for example, an IGBT module) mainly generating heat inside the box body 1 can be fixed on the cold collecting plate 4 by an operator during installation, thereby improving the heat dissipating effect of the electronic component generating heat; the opposite two sides of the outer side wall of the heat radiation plate 3 are respectively provided with a fixing plate 6 with a right-angle structure, the fixing plate 6 and the heat radiation plate 3 are of an integrated structure, the heat radiation mechanism comprises a plurality of semiconductor refrigeration sheets 7 uniformly distributed in the gap 5, a plurality of heat radiation fins 8 uniformly distributed on the outer side wall of the heat radiation plate 3 and corresponding to the position between the two fixing plates 6 and a plurality of heat radiation fans 9 fixed on the fixing plates, the refrigeration surface of the semiconductor refrigeration sheets 7 is attached to the cold collection plate 4, the heating surface of the semiconductor refrigeration sheets 7 is attached to the heat radiation plate 3, in the embodiment, the cold collection plate 4 is provided with a connecting hole convenient for the electrical connection between the semiconductor refrigeration sheets 7 and the internal circuit of the box body 1, and during the work, the semiconductor refrigeration sheets 7 and the inverter body synchronously work, thereby achieving the effect of real-time, the heat dissipation fins 8 are uniformly distributed along the height direction of the heat dissipation plate 3, a plurality of heat dissipation holes 10 are uniformly distributed on the heat dissipation fins 3, the heat dissipation holes 10 on two adjacent heat dissipation fins 3 are arranged in a staggered manner, an air outlet (not shown in the figure) for discharging hot air by the heat dissipation fan 9 is arranged on the fixing plate 6 and at a position corresponding to the heat dissipation fan 9, and when the inverter is installed, the heat dissipation fan 9 is electrically connected with a direct-current power supply input connecting terminal outside the inverter body;

furthermore, the top end and the bottom end of the fixing plate 6 are both fixedly provided with a baffle plate 11 extending towards the direction of the heat dissipation fin 3, the baffle plate 11 and the fixing plate 6 are arranged vertically to each other, and the baffle plate 11 and the fixing plate 6 are of an integrally formed structure;

further, one layer of heat-conducting silicone grease is coated on one side face, attached to the semiconductor refrigerating sheet 7, of the heat dissipation plate 3 and one side face, attached to the semiconductor refrigerating sheet 7, of the cold collection plate 4, and the heat-conducting silicone grease can improve the heat transmission effect of the semiconductor refrigerating sheet 7, so that the heat dissipation effect of the semiconductor refrigerating sheet is improved.

Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. The utility model provides a solar photovoltaic inverter, includes the inverter body, its characterized in that: the inverter body comprises a box body (1), a box door (2) arranged on one side face of the box body (1), a heat dissipation plate (3) arranged on the other side face of the box body (1) and a heat dissipation mechanism arranged on the heat dissipation plate (3), wherein a cold collection plate (4) is fixedly arranged on the inner side wall of the heat dissipation plate (3), a gap (5) is arranged between the cold collection plate (4) and the heat dissipation plate (3), fixing plates (6) with right-angle structures are respectively arranged on the two opposite sides of the outer side wall of the heat dissipation plate (3), the heat dissipation mechanism comprises a plurality of semiconductor refrigeration sheets (7) which are uniformly distributed in the gap (5), a plurality of heat dissipation fins (8) which are uniformly distributed on the outer side wall of the heat dissipation plate (3) and correspond to the position between the two fixing plates (6), and a plurality of heat dissipation fans (9) which are fixed on the fixing plates (6), the refrigeration faces of, the heating surface of semiconductor refrigeration piece (7) and heating panel (3) laminating, evenly distributed has a plurality of louvre (10) on heat dissipation wing (8), and two are adjacent louvre (10) on heat dissipation wing (8) are the setting of staggering each other, just be equipped with the air exit corresponding to radiator fan (9) position department on fixed plate (6).

2. The solar photovoltaic inverter according to claim 1, wherein: and the top end part and the bottom end part of the fixed plate (6) are both fixedly provided with baffle plates (11) extending towards the direction of the heat dissipation fins (8).

3. The solar photovoltaic inverter according to claim 1, wherein: one side of the heat dissipation plate (3) attached to the semiconductor refrigeration sheet (7) and one side of the cold collection plate (4) attached to the semiconductor refrigeration sheet (7) are coated with a layer of heat-conducting silicone grease.

4. The solar photovoltaic inverter according to claim 1, wherein: the heat dissipation fins (8) and the heat dissipation plate (3) are of an integrally formed structure.