CN213991496U

CN213991496U - Circulation cooling system and photovoltaic inverter

Info

Publication number: CN213991496U
Application number: CN202023062350.0U
Authority: CN
Inventors: 赵龙; 宋英杰; 李恒华; 马彦锋
Original assignee: Sineng Electric Co ltd
Current assignee: Sineng Electric Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-17
Anticipated expiration: 2030-12-18

Abstract

The utility model is suitable for the technical field of inverter equipment, and provides a circulating heat dissipation system and a photovoltaic inverter, wherein the circulating heat dissipation system comprises a first machine cabinet; the evaporator is arranged in the first cabinet; the evaporator fan is obliquely arranged at the output end of the evaporator; the condenser is arranged at the upper end of the evaporator; the condenser fan is arranged at the air inlet end of the condenser; the inner and outer bin partition plates are arranged between the evaporator and the condenser; one end of the liquid-vapor conversion pipe is connected with the air outlet end of the condenser, and the other end of the liquid-vapor conversion pipe is connected with the evaporator; and one end of the return pipe is connected with the condenser, the other end of the return pipe is connected with the evaporator, and the evaporator and/or the condenser are obliquely arranged. Above-mentioned circulation cooling system and photovoltaic inverter through setting up the evaporimeter slope, have realized reducing the effect of the height of first rack.

Description

Circulation cooling system and photovoltaic inverter

Technical Field

The utility model belongs to the technical field of inverter device, especially, relate to a circulation cooling system and photovoltaic inverter.

Background

With the continuous development of the photovoltaic industry, the power density of the photovoltaic inverter is continuously increased. The research and development of the photovoltaic inverter industry on novel high-efficiency heat dissipation technology is increasing continuously. The problem that the temperature of the inner bin environment of the photovoltaic inverter is too high becomes a difficulty in the research and development of the current high-power photovoltaic inverter along with the increase of the loss of more switching elements.

The traditional two-phase flow heat dissipation technology becomes the main technology for solving the problem of overhigh environmental temperature of the inner bin of the photovoltaic inverter at present. The evaporator and the condenser of the traditional two-phase flow technology are vertically arranged, the heights of the evaporator and the condenser are higher, the height of a cabinet is increased, and system resources are wasted

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a circulation cooling system aims at solving current photovoltaic inverter and leads to the problem of extravagant system resource because of the high height of evaporimeter and condenser.

The embodiment of the utility model provides a realize like this, a circulation cooling system, include:

a first cabinet;

the evaporator is arranged in the first cabinet;

the evaporator fan is arranged on the output side of the evaporator;

the condenser is arranged at the upper end of the evaporator;

the condenser fan is arranged at the air inlet end of the condenser;

the inner and outer bin division plates are arranged between the evaporator and the condenser

One end of the liquid-vapor conversion pipe is connected with the air outlet end of the condenser, and the other end of the liquid-vapor conversion pipe is connected with the evaporator;

one end of the return pipe is connected with the condenser, and the other end of the return pipe is connected with the evaporator;

the evaporator and/or the condenser are disposed obliquely.

Further, the evaporator includes:

a heat absorbing plate;

the evaporation portion, the evaporation portion with the absorber plate is connected, be equipped with the evaporation chamber in the evaporation portion, the thickness that the evaporation chamber corresponds the department with the regional correspondence of intense heat is greater than with the regional thickness that corresponds of weak intense heat.

Furthermore, the evaporator fan is obliquely arranged at the output end of the evaporator.

Furthermore, the liquid-vapor conversion pipes are provided with a plurality of liquid-vapor conversion pipes which are arranged at intervals.

Furthermore, a plurality of air holes are formed in the position, corresponding to the condenser fan, of the first cabinet.

The utility model also provides a photovoltaic inverter, including second rack, insulated gate bipolar transistor and inductance, still include as above-mentioned any one circulation cooling system, interior outer storehouse division board will interior storehouse and outer storehouse are separated into to the second rack, the condenser is located the gas outlet in outer storehouse, the evaporimeter is located in the interior storehouse.

Furthermore, the evaporator also comprises a condensation pipe, one end of the condensation pipe is connected with the evaporator, and the other end of the condensation pipe extends into the inner bin

Furthermore, the condenser fan is arranged between the condenser and the air outlet of the outer bin.

Furthermore, an inner bin fan is arranged between the evaporator and the air inlet of the inner bin.

Furthermore, an inner bin air duct is formed around the inductor by the second cabinet.

The utility model has the advantages that: the evaporator and/or the condenser are/is obliquely arranged, so that the sum of the heights of the evaporator and the condenser is reduced, the height of the first cabinet can be correspondingly reduced, and space resources occupied by the system are saved.

Drawings

Fig. 1 is a schematic structural diagram of a circulation heat dissipation system according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of a condenser and an evaporator in the circulation heat-dissipating system of FIG. 1;

fig. 3 is a schematic structural diagram of a circulation heat dissipation system according to another embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a circulation cooling system through setting up evaporimeter and/or condenser slope, has solved the great problem of prior art occupation space resource, sets up through the evaporation portion at the evaporimeter sunkenly, has both solved the too high problem of IGBT (insulated gate bipolar transistor) local temperature rise, has improved circulation cooling system's heat-sinking capability again, strengthens IGBT's utilization ratio, has reduced circulation cooling system's cost.

The following describes in detail a specific implementation of the present invention with reference to specific embodiments.

Example one

Referring to fig. 1 to 3, a circulation heat dissipation system according to a first embodiment of the present invention includes a first cabinet 10, an evaporator 20, an evaporator blower 30, a condenser 40, a condenser blower 50, an inner and outer bin partition plate 60, a liquid-vapor conversion pipe 70 and a return pipe 80, wherein the evaporator 20 is disposed in the first cabinet 10, the evaporator blower 30 is disposed at an output side of the evaporator 20, the condenser 40 is disposed at an upper end of the evaporator 20, the condenser blower 50 is disposed at an air inlet end of the condenser 40, the inner and outer bin partition plate 60 is disposed between the evaporator 20 and the condenser 40, one end of the liquid-vapor conversion pipe 70 is connected to an air outlet end of the condenser 40, the other end of the liquid-vapor conversion pipe is connected to the evaporator 20, one end of the return pipe 80 is connected to the condenser 40, and the other end of the return pipe is connected to the evaporator 20; the evaporator 20 is disposed obliquely.

According to the circulation heat dissipation system, the evaporator 20 is obliquely arranged, so that the sum of the heights of the evaporator 20 and the condenser 40 is reduced, the height of the first cabinet 10 can be correspondingly reduced, and space resources occupied by the system are saved.

Specifically, in this embodiment, after the hot air in the internal compartment of the photovoltaic inverter passes through the evaporator 20, the liquid in the evaporator 20 is heated and then vaporized, passes through the liquid-vapor conversion tube 70, and then reaches the condenser 40, and is cooled by the external cold air, and then flows back to the evaporator 20 through the return pipe 80, and at the same time, the cold air cooled by passing through the evaporator 20 returns to the internal compartment of the photovoltaic inverter again to realize internal circulation. The evaporator fan 30 is used for guiding and accelerating hot air in the photovoltaic inverter inner bin to enter the evaporator 20, and the condenser fan 50 is used for guiding and accelerating exchange between external cold air and heat in the liquid-vapor conversion pipe 70, so that the heat dissipation efficiency is improved.

In other embodiments of the present invention, the evaporator 20 and/or the condenser 40 may be obliquely disposed, and when both the evaporator 20 and the condenser 40 are obliquely disposed, the overlapping height of the evaporator 20 and the condenser 40 is minimized, and thus the height of the first cabinet 10 may be minimized.

Example two

In one embodiment of the present invention, referring to fig. 3, the evaporator 20 includes a heat absorbing plate 21 and an evaporation portion 22; the evaporation part 22 is connected with the heat absorbing plate 21, the thickness of the evaporation cavity 221 corresponding to the strong heat area is larger than that of the evaporation cavity 221 corresponding to the weak strong heat area, it should be noted that the heating point of the heating element is not uniform when working, therefore, when the evaporation cavity 221 with uniform thickness solves the heat dissipation problem of the dispersed heat source, the heat dissipation effect is poor, the utilization rate of the evaporator is low, through designing the thickness of the evaporation cavity 221 in the evaporator 20 differently according to the area where the heat source is concentrated, the thickness of the evaporation cavity 221 in the area where the heat source is concentrated is increased, the thickness of the evaporation cavity 221 without obvious heat source is thinned, thus, the problem of over-high local temperature rise of the heating element is solved, the heat dissipation capability is improved, the utilization rate of the heating element is enhanced, and the use cost is reduced.

EXAMPLE III

In an embodiment of the present invention, please refer to fig. 1, the evaporator blower 30 is obliquely disposed at the output end of the evaporator 20 to blow the cooled wind to the inner bin of the photovoltaic inverter.

Example four

In an embodiment of the present invention, the liquid-vapor converting pipe 70 is provided with a plurality of liquid-vapor converting pipes 70, and the plurality of liquid-vapor converting pipes 70 are arranged at intervals to improve the heat dissipation effect.

In an embodiment of the present invention, the first cabinet 10 is provided with a plurality of air holes 11 at positions corresponding to the condenser fans 50, so as to suck the external cold air.

EXAMPLE five

The utility model also provides a photovoltaic inverter, including second rack (not shown), insulated gate bipolar transistor (not shown in the figure) and inductance (not shown in the figure), still include as above-mentioned any one circulation cooling system, interior outer storehouse division board 60 separates into interior storehouse (not shown in the figure) and outer storehouse (not shown in the figure) with the second rack, and the gas outlet in outer storehouse is located to condenser 40, and evaporimeter 20 is located in the interior storehouse.

Above-mentioned photovoltaic inverter, through reducing the occupation space of circulation cooling system, specifically, through setting up evaporimeter 20 slope, has reduced the high sum of evaporimeter 20 and condenser 40, and then can be corresponding reduce the height of first cabinet 10, saved the space resource that the system occupy, and then can dwindle the height of the second cabinet body, saved the space resource that photovoltaic inverter occupied.

EXAMPLE six

In an embodiment of the present invention, the photovoltaic inverter further includes a condensation pipe (not shown), one end of the condensation pipe is connected to the evaporator 20, and the other end of the condensation pipe extends into the inner compartment, so as to rapidly reduce the temperature in the inner compartment.

EXAMPLE seven

The utility model discloses an in the embodiment, condenser fan 50 is located between the gas outlet in condenser 40 and outer storehouse to accelerate the speed of giving vent to anger in outer storehouse, and then improve the radiating rate. An inner bin fan (not shown) is arranged between the evaporator 20 and the air inlet of the inner bin to increase the speed of the air in the inner bin entering the evaporator 20, and further increase the heat dissipation speed.

Specifically, in this embodiment, the second rack is located and is formed with interior storehouse wind channel around the inductance to interior storehouse and outside form the circulation of air, have improved the radiating effect.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A circulating heat dissipating system, comprising:

a first cabinet;

the evaporator is arranged in the first cabinet;

the evaporator fan is arranged on the output side of the evaporator;

the condenser is arranged at the upper end of the evaporator;

the condenser fan is arranged at the air inlet end of the condenser;

the evaporator and/or the condenser are disposed obliquely.

2. The circulating heat dissipating system of claim 1, wherein the evaporator comprises:

a heat absorbing plate;

3. The hydronic heat dissipation system according to claim 1, wherein the evaporator fan is disposed at an oblique angle to the output end of the evaporator.

4. The system for circulating heat of claim 1, wherein a plurality of liquid-vapor converting pipes are provided, and the liquid-vapor converting pipes are arranged at intervals.

5. The system of claim 1, wherein the first cabinet is provided with a plurality of air holes at positions corresponding to the condenser fans.

6. A photovoltaic inverter, including second rack, insulated gate bipolar transistor and inductance, characterized by, includes the circulation cooling system of any one of claims 1-5, interior outer bin division board divides the second rack into interior storehouse and outer storehouse, the gas outlet in outer storehouse is located to the condenser, the evaporimeter is located in the interior storehouse.

7. The photovoltaic inverter of claim 6, further comprising:

and one end of the condensation pipe is connected with the evaporator, and the other end of the condensation pipe extends into the inner bin.

8. The photovoltaic inverter of claim 6, wherein the condenser fan is disposed between the condenser and the outlet of the outer bin.

9. The photovoltaic inverter of claim 6, wherein an inner bin blower is disposed between the evaporator and the air inlet of the inner bin.

10. The photovoltaic inverter of claim 6, wherein the second cabinet is formed with an internal plenum duct around the inductor.