CN218958780U

CN218958780U - Converter and photovoltaic device

Info

Publication number: CN218958780U
Application number: CN202223290134.0U
Authority: CN
Inventors: 姜颖异; 黄猛; 黄子烺
Original assignee: Gree Electric Appliances Inc of Zhuhai; Guochuang Energy Internet Innovation Center Guangdong Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Guochuang Energy Internet Innovation Center Guangdong Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-02
Anticipated expiration: 2032-12-08

Abstract

The utility model provides a converter and photovoltaic equipment. The converter comprises a cabinet body, wherein an air inlet and an air outlet are formed in the cabinet body; the baffle is arranged in the cabinet body, the interior of the cabinet body is divided into an air inlet channel and an air outlet channel by the baffle, and the air inlet, the air inlet channel, the air outlet channel and the air outlet are sequentially communicated; a heating element; and (3) a condensation structure. According to the converter and the photovoltaic equipment, the condensing structure is utilized to condense the gas which enters the cabinet body and is used for cooling the heating components and the air after absorbing heat at the heating components, so that the condensation of water vapor at the heating components is effectively prevented, the damage of the heating components caused by the condensation of the gas at the heating components is avoided, the scheme of condensation prevention by adopting the heater in the prior art is also avoided, and the heat dissipation efficiency of the heating components is effectively ensured.

Description

Converter and photovoltaic device

Technical Field

The utility model relates to the technical field of photovoltaic equipment, in particular to a converter and photovoltaic equipment.

Background

At present, a ventilating device and a heater are arranged on a high-power converter in the market, the ventilating device is used for driving airflow to flow through heating components to form convection heat dissipation, the heater is used for increasing the temperature of the air to avoid condensation, the ventilating device is started to ventilate and dissipate heat when the temperature exceeds 40 ℃, and the heater is started to avoid condensation when the relative humidity exceeds 80%.

However, when the environment where the current transformer is located meets the two conditions, that is, when the hot and humid air with the temperature of more than 40 ℃ and the relative humidity of more than 80% is used as a heat exchange medium, the heat dissipation effect of the current transformer is greatly reduced due to the superposition of the heating of the heater and the heat of the air, so that the reliability of the current transformer is low.

Disclosure of Invention

In order to solve the technical problem of low reliability of the current transformer caused by low heat dissipation efficiency in the prior art, the current transformer and the photovoltaic equipment are provided, wherein the current transformer adopts a condensation structure to enable gas to be cooled and condensed at a set position so as to improve the reliability.

A current transformer, comprising:

the cabinet body is provided with an air inlet and an air outlet;

the baffle is arranged in the cabinet body, the interior of the cabinet body is divided into an air inlet channel and an air outlet channel by the baffle, and the air inlet, the air inlet channel, the air outlet channel and the air outlet are sequentially communicated;

the heating element is arranged in the air inlet channel and/or the air outlet channel;

the condensing structure is arranged in the cabinet body, part of the condensing structure is arranged at the air inlet, and part of the condensing structure is arranged at the air outlet.

The cabinet body comprises a top plate, and the air inlet and the air outlet are both arranged on the top plate.

The condensing structure comprises a water receiving plate and a refrigerant pipe, a plurality of air passing holes are formed in the water receiving plate, the refrigerant pipe is located on the side face, facing the top plate, of the water receiving plate, and the refrigerant pipe sequentially passes through all the air passing holes.

The water receiving plate has an included angle with the horizontal plane, and the included angle ranges from 30 degrees to 60 degrees.

The cross section of the water receiving plate is in an inverted V shape, and the vertex angle of the water receiving plate faces to the top plate.

The air passing holes form a plurality of air passing hole rows on the water receiving plate, and the refrigerant pipe sequentially passes through all the air passing hole rows in an S shape.

The converter further comprises a first fan assembly and a second fan assembly, wherein the first fan assembly is arranged in the air inlet channel, and the second fan assembly is arranged in the air outlet channel.

The air volume of the first fan assembly is larger than that of the second fan assembly.

The heat exchange area of the condensing structure in the air inlet channel is larger than the heat exchange area of the condensing structure in the air outlet channel.

The air inlet is provided with a filtering structure.

A photovoltaic device comprises the converter.

According to the converter and the photovoltaic equipment, the condensing structure is utilized to condense the gas which enters the cabinet body and is used for cooling the heating components and the air after absorbing heat at the heating components, so that the condensation of water vapor at the heating components is effectively prevented, the damage of the heating components caused by the condensation of the gas at the heating components is avoided, the scheme of condensation prevention by adopting the heater in the prior art is also avoided, the heat dissipation efficiency of the heating components is effectively ensured, the converter can be used under the annular state of damp and hot, and the reliability of the converter is ensured.

Drawings

Fig. 1 is a schematic structural diagram of a current transformer according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a condensation structure according to an embodiment of the present utility model;

in the figure:

1. a cabinet body; 11. an air inlet; 12. an air outlet; 2. a partition plate; 13. an air intake passage; 14. an air outlet channel; 3. a heating element; 4. a condensing structure; 15. a top plate; 41. a water receiving plate; 42. a refrigerant pipe; 43. air passing holes; 5. a first fan assembly; 6. a second fan assembly.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The current transformer as shown in fig. 1 and 2 comprises: the cabinet body 1 is provided with an air inlet 11 and an air outlet 12; the partition board 2 is arranged in the cabinet body 1, the partition board 2 divides the interior of the cabinet body 1 into an air inlet channel 13 and an air outlet channel 14, and the air inlet 11, the air inlet channel 13, the air outlet channel 14 and the air outlet 12 are sequentially communicated; a heating element 3, wherein the heating element 3 is arranged in the air inlet channel 13 and/or the air outlet channel 14; the condensation structure 4, the condensation structure 4 set up in the cabinet body 1, and part condensation structure 4 set up in air intake 11 department, part condensation structure 4 set up in air outlet 12 department. Utilize condensation structure 4 to get into in the cabinet body 1 be used for the air after the components and parts 3 refrigerated gas and the heat of generating heat the components and parts 3 department absorption heat and condense, effectually prevent aqueous vapor and generate heat components and parts 3 department condensation, avoid gaseous at the components and parts 3 department condensation of generating heat and cause the damage of components and parts 3 that generate heat, also avoided adopting the heater among the prior art to prevent the scheme of condensation, effectively guaranteed the radiating efficiency to components and parts 3 that generate heat.

The cabinet body 1 comprises a top plate 15, and the air inlet 11 and the air outlet 12 are both arranged on the top plate 15. The air inlet 11 and the air outlet 12 are arranged on the top plate 15 of the cabinet body 1, cold air is utilized to sink more easily, hot air is lifted more easily to be far away, the flow rate of the cold air in the air inlet channel 13 is increased, and the flow rate of the hot air in the air outlet channel 14 is increased, so that the heat dissipation efficiency of the converter is further improved.

As an embodiment, the condensation structure 4 includes a water receiving plate 41 and a refrigerant pipe 42, a plurality of air passing holes 43 are provided on the water receiving plate 41, the refrigerant pipe 42 is located on a side surface of the water receiving plate 41 facing the top plate 15, and the refrigerant pipe 42 sequentially passes through all the air passing holes 43. The gas needs to flow through the air passing holes 43 when flowing through the condensation structure 4, the gas can pass through the refrigerant pipe 42 in the process, the refrigerant pipe 42 can cool and condense the gas, condensed water formed by condensation can be received by the water receiving plate 41 and drained to a set position, so that dry and cold gas flows to the heating element 3 to dissipate heat, and the reliable heat dissipation of the converter is ensured. In the same way, the temperature of the air which exchanges heat with the heating element 3 is higher, and more water vapor can be carried by the air than ordinary air, so that part of the air passes through the air passing holes 43 on the water receiving plate 41 before being discharged from the air outlet 12, then is condensed by contacting with the refrigerant pipe 42, and the condensed water condensed at the condensing pipe is received by the water receiving plate 41 and is guided to a set position, thereby further preventing the possibility that the water vapor is condensed at the bottom of the converter. When dust and the like enter the cabinet body 1, the dust is preferentially accumulated on the water receiving plate 41 and then is wrapped and squeezed out under the drive of condensed water, so that the dust is discharged out of the cabinet body 1 as sewage, the dust content of the heating element 3 is reduced, and the reliability of the converter is improved.

Optionally, the air passing holes 43 form a plurality of air passing holes 43 on the water receiving plate 41, and the refrigerant pipe 42 is S-shaped and sequentially passes through all the air passing holes 43. The refrigerant pipe 42 is conveniently arranged.

In order to facilitate the drainage effect of the water receiving plate 41 on condensed water, the water receiving plate 41 has an included angle with the horizontal plane, and the included angle ranges from 30 degrees to 60 degrees. Preferably, the included angle is 45 °. The condensed water is led to the side wall of the cabinet body 1 by using the water receiving plate 41 which is obliquely arranged, and then is led out of the cabinet body 1 or led to other positions by using other structures.

As an embodiment, the cross section of the water receiving plate 41 is in an inverted V shape, and the top angle of the water receiving plate 41 faces the top plate 15. The water receiving plate 41 can drain the condensed water to the two sides of the cabinet body 1, so that the overlong flowing path of the condensed water on the water receiving plate 41 is prevented from being dripped onto the heating element 3 through the air hole 43, and the reliability of the converter is further ensured.

The converter further comprises a first fan assembly 5 and a second fan assembly 6, wherein the first fan assembly 5 is arranged in the air inlet channel 13, and the second fan assembly 6 is arranged in the air outlet channel 14. The first fan assembly 5 can suck the air outside the cabinet body 1 into the air inlet channel 13 through the air inlet 11, forces the air to be cooled and dehumidified through the condensation structure 4 and then blown to the heating components 3, thereby realizing the cooling of the heating components 3, and under the dual action of the first fan assembly 5 and the active downward flow of cold air, the air flow rate in the air inlet channel 13 is increased, thereby increasing the heat dissipation efficiency of the heating components 3 in the air inlet channel 13, and the second fan assembly 6 can pump the air out of the air outlet channel 14 to the condensation structure 4 and finally exhaust the cabinet body 1 through the air outlet 12. The hot air in the cabinet body 1 is mainly generated by heat exchange with the reactor, is easy to concentrate above the reactor, and if the hot air is not collected, the heat dissipation effect is easy to be reduced, so that an air duct design is made for collecting hot air, cold air is transported to the lowest position at the fastest speed, hot air is discharged to a condensing plate, and condensation is removed again.

The air volume of the first fan assembly 5 is larger than the air volume of the second fan assembly 6. The moving speed of the cold air and the cold air quantity are further improved, so that the heat exchange efficiency of the reactor is ensured.

Preferably, the first fan assembly 5 comprises two fans arranged in parallel, and the second fan assembly 6 is a fan.

The heat exchange area of the condensation structure 4 located in the inlet channel 13 is larger than the heat exchange area of the condensation structure 4 located in the outlet channel 14. As shown in fig. 1, the upper part of the partition plate 2 is obliquely arranged, so that the left half part and part of the right half part of the V-shaped structure are respectively drawn into the air inlet channel 13, the heat exchange area of the condensation structure 4 in the air inlet channel 13 is increased, and the cooling and dehumidifying effects on the air in the air inlet channel 13 are increased.

The air inlet 11 is provided with a filtering structure. The filtering structure is used for blocking and filtering the foreign matters with larger partial sizes, so that the reliability of the converter is further improved.

A photovoltaic device comprises the converter.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A current transformer, characterized in that: comprising the following steps:

the novel multifunctional intelligent cabinet comprises a cabinet body (1), wherein an air inlet (11) and an air outlet (12) are formed in the cabinet body (1);

the partition board (2), the partition board (2) is arranged in the cabinet body (1), the partition board (2) divides the interior of the cabinet body (1) into an air inlet channel (13) and an air outlet channel (14), and the air inlet (11), the air inlet channel (13), the air outlet channel (14) and the air outlet (12) are sequentially communicated;

the heating component (3) is arranged in the air inlet channel (13) and/or the air outlet channel (14);

the condensing structure (4), condensing structure (4) set up in the cabinet body (1), and part condensing structure (4) set up in air intake (11) department, part condensing structure (4) set up in air outlet (12) department.

2. The current transformer of claim 1, wherein: the cabinet body (1) comprises a top plate (15), and the air inlet (11) and the air outlet (12) are both arranged on the top plate (15).

3. A current transformer according to claim 2, characterized in that: the condensing structure (4) comprises a water receiving plate (41) and a refrigerant pipe (42), a plurality of air passing holes (43) are formed in the water receiving plate (41), the refrigerant pipe (42) is located on the side face, facing the top plate (15), of the water receiving plate (41), and the refrigerant pipe (42) sequentially passes through all the air passing holes (43).

4. A current transformer according to claim 3, wherein: the water receiving plate (41) has an included angle with the horizontal plane, and the included angle ranges from 30 degrees to 60 degrees.

5. The current transformer of claim 4, wherein: the section of the water receiving plate (41) is in an inverted V shape, and the vertex angle of the water receiving plate (41) faces the top plate (15).

6. A current transformer according to claim 3, wherein: the air passing holes (43) are formed on the water receiving plate (41) to form a plurality of air passing holes (43) rows, and the refrigerant pipe (42) sequentially passes through all the air passing holes (43) rows in an S-shaped shape.

7. The current transformer of claim 1, wherein: the converter further comprises a first fan assembly (5) and a second fan assembly (6), wherein the first fan assembly (5) is arranged in the air inlet channel (13), and the second fan assembly (6) is arranged in the air outlet channel (14).

8. The current transformer of claim 7, wherein: the air quantity of the first fan assembly (5) is larger than that of the second fan assembly (6).

9. The current transformer of claim 8, wherein: the heat exchange area of the condensing structure (4) in the air inlet channel (13) is larger than the heat exchange area of the condensing structure (4) in the air outlet channel (14).

10. The current transformer of claim 1, wherein: the air inlet (11) is provided with a filtering structure.

11. A photovoltaic device characterized by: comprising a current transformer according to any one of claims 1 to 10.