A kind of easy maintenance photovoltaic inverter heat exchange structure

Abstract

This utility model discloses an easy-to-maintain heat exchange structure for a photovoltaic inverter. The specific implementation includes: an inverter cavity, an inverter back cover, a detachable mounting plate, a heat exchanger, a radiator, and heating elements. The inverter back cover is installed on one side of the inverter cavity, forming a receiving space with the inverter cavity. The heat exchanger, radiator, and heating elements are all housed within this space, with the heating elements distributed on both sides of the radiator. The heat exchanger is located at one end of the radiator, and the mounting plate is mounted on the inverter back cover. This utility model installs the heat exchanger and radiator on the same side, preventing dust and impurities from entering the internal air duct of the heat exchanger and reducing the difficulty of subsequent cleaning. The inverter back cover and baffle plate separate the air ducts of the heat exchanger and radiator, preventing interference. When the external ambient temperature is low, the heat exchanger fan can be turned off, reducing product wear and improving operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of inverter heat exchange technology, and in particular to an easy-to-maintain photovoltaic inverter heat exchange structure. Background Technology

[0002] In existing photovoltaic inverter cooling systems, heat exchangers are typically integrated directly into the inverter's sealed cavity. This design has the following technical drawbacks: First, when external impurities or dust clog the heat exchanger's airflow, the inverter cavity must be disassembled to clean and maintain the heat exchanger, resulting in a cumbersome process and high maintenance costs. Second, current technology often places the heat exchanger and radiator within the same airflow duct and fixes the fan to the same mounting plate, requiring the entire mounting plate to be disassembled for fan maintenance, further increasing maintenance difficulty. More importantly, even in low ambient temperatures and when the heat exchanger does not need to be started, its structure still obstructs airflow within the airflow duct, significantly increasing the fan's drag during operation and causing a decrease in heat dissipation efficiency, severely restricting the inverter system's reliability and environmental adaptability. Utility Model Content

[0003] Based on this, in order to solve the problems of difficult maintenance and reduced heat dissipation efficiency of existing photovoltaic inverter heat dissipation systems, this utility model provides an easy-to-maintain photovoltaic inverter heat exchange structure.

[0004] This utility model provides an easy-to-maintain heat exchange structure for a photovoltaic inverter, comprising:

[0005] Inverter housing, inverter back cover, removable mounting plate, heat exchanger, radiator, and heat-generating components;

[0006] The inverter back cover is installed on one side of the inverter cavity, and the inverter cavity and the inverter back cover form an accommodating space. The heat exchanger, radiator and heat-generating components are all arranged in the accommodating space. The heat-generating components are distributed on both sides of the radiator. The heat exchanger is arranged at one end of the radiator. The mounting plate is arranged on the inverter back cover.

[0007] The radiator fan is located inside the back cover of the inverter and is situated on top of the radiator; multiple radiator fans are provided.

[0008] The air outlet plane of the radiator fan is parallel to the base plate of the radiator.

[0009] A steel mesh protective cover for the heat exchanger fan is mounted on the mounting plate.

[0010] The heat exchanger fan and the heat exchanger are located at the same end of the radiator, and the heat exchanger is disposed between the heat exchanger fan and the radiator.

[0011] The inverter cavity is equipped with internal fans at both ends.

[0012] The inverter internal fan at one end near the heat exchanger is mounted inside the inverter cavity via a fan bracket, while the inverter internal fan at the other end away from the inverter is mounted on the inner wall of the inverter cavity.

[0013] The fan bracket has an air inlet chamber at its bottom, and the air outlet chamber and the air inlet chamber are symmetrically arranged about the heat exchanger.

[0014] A wind deflector is also provided on the outer surface of the inverter's back cover, and the wind deflector is located between the heat exchanger and the radiator fan.

[0015] The heat exchanger's external air duct is composed of the inverter's back protective plate, the baffle plate, and the heat dissipation fins on the side of the radiator.

[0016] Beneficial effects: This utility model installs the heat exchanger and radiator on the same side, preventing dust and impurities from entering the internal air duct of the heat exchanger and reducing the difficulty of later cleaning; the radiator fan is mounted on a pull-out mounting plate, while the heat exchanger fan is mounted separately on a detachable mounting plate, allowing for individual maintenance of the heat exchanger system simply by removing the latter; the air ducts of the heat exchanger and radiator are separated by the inverter's back cover and baffle plate, preventing interference between them; the heat exchanger fan can be turned off when the external ambient temperature is low, reducing product wear and improving operating efficiency; the radiator fan is located in the projection area on top of the radiator, ensuring that the fan exhaust is directed towards the radiator area; the air duct formed when the radiator fan is working is such that the fan exhaust airflow is split upwards and downwards after being cooled by the radiator, then cools the heat-generating components on both sides of the radiator, and finally flows into the surrounding environment through the air outlet on the inverter's back cover, improving heat dissipation efficiency.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0018] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation on this utility model. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure provided by this utility model;

[0021] Figure 3This is a schematic diagram of the internal airflow direction of the heat exchanger provided by this utility model;

[0022] Figure 4 This is a schematic diagram of the windbreak position provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the flow direction of the external air duct of the heat exchanger system provided by this utility model. Detailed Implementation

[0024] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These embodiments should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0025] like Figure 1 , Figure 2 As shown, this utility model provides an easy-to-maintain heat exchange structure for a photovoltaic inverter, comprising:

[0026] Inverter housing 4, inverter back cover 3, removable mounting plate 2, heat exchanger 5, radiator 8, and heat-generating components 9;

[0027] The inverter back cover 3 is installed on one side of the inverter cavity 4, and the inverter cavity 4 and the inverter back cover 3 form an accommodating space. The heat exchanger 5, the radiator 8 and the heating element 9 are all arranged in the accommodating space. The heating element 9 is distributed on both sides of the radiator 8. The heat exchanger 5 is arranged at one end of the radiator 8. The mounting plate 2 is arranged on the inverter back cover 3.

[0028] Mounting plate 2 is removable. When maintenance is required on the heat exchanger 5 system, simply remove the removable mounting plate 2 to perform tasks such as component replacement and dust removal, thus reducing the difficulty of maintenance.

[0029] Preferably, the cross-sectional shape of the inverter back cover 3 is determined by the dimensions of the heat-generating components 9, the radiator fan 7, and the radiator 8.

[0030] By installing heat exchanger 5 and radiator 8 on the same side, dust and impurities are prevented from entering the internal air duct of heat exchanger 5, reducing the difficulty of later cleaning.

[0031] The radiator fan 7 is located inside the inverter back cover 3 and is located on top of the radiator 8. Multiple radiator fans 7 are provided.

[0032] The air outlet plane of the radiator fan 7 is parallel to the base plate of the radiator 8.

[0033] Setting the air outlet plane of the radiator fan 7 parallel to the base plate of the radiator 8 can significantly improve heat dissipation efficiency and optimize heat dissipation effect. At the same time, it can also reduce noise, improve system stability, save space, and facilitate installation and maintenance.

[0034] The radiator fan 7 is located on top of the radiator 8, and multiple radiator fans 7 are provided to dissipate heat from the radiator 8 and the heat-generating components 9 on both sides of the radiator 8. All radiator fans 7 are located within the projection range of the radiator 8, ensuring that the airflow from the radiator fans 7 is directed towards the area of ​​the radiator 8, and ensuring that there is a certain distance between the radiator fans 7 and the radiator 8.

[0035] When the radiator fan 7 is working, the airflow formed is as follows: the fan exhaust airflow passes through the radiator 8 for heat dissipation and then splits to the upper and lower sides, then dissipates heat to the heat-generating components 9 on both sides of the radiator 8, and finally flows into the surrounding environment through the air outlet on the inverter back cover 3.

[0036] The heat exchanger fan steel mesh protective cover 1 is installed on the mounting plate 2.

[0037] The heat exchanger fan steel mesh protective cover 1 is installed on the mounting plate 2, which can effectively prevent foreign objects from entering the fan and avoid damage or shutdown of the fan due to foreign objects jamming the fan blades.

[0038] The heat exchanger fan 6 and the heat exchanger 5 are located at the same end of the radiator 8, and the heat exchanger 5 is disposed between the heat exchanger fan 6 and the radiator 8.

[0039] Inverter internal fans 11 are respectively installed at both ends inside the inverter cavity 4.

[0040] The installation of heat exchanger fan 6 can increase the contact area between the surface of heat exchanger 5 and the cooling airflow, thereby removing heat more effectively.

[0041] The coordinated operation of the heat exchanger fan 6 and the inverter internal fan 11 ensures that the heat inside the heat exchanger 5 and the inverter cavity 4 can be evenly removed, avoiding local overheating and improving the overall heat dissipation efficiency.

[0042] An internal inverter fan 11 located near the heat exchanger 5 is mounted inside the inverter cavity 4 via a fan bracket 12. An internal inverter fan 11 located away from the inverter is mounted on the inner wall of the inverter cavity 4. The airflow direction inside the heat exchanger is as follows: Figure 3 As indicated by the middle arrow.

[0043] The bottom of the fan bracket 12 has an air inlet cavity 14, and the air outlet cavity 15 is symmetrically arranged with respect to the air inlet cavity 14 about the heat exchanger 5.

[0044] like Figure 4 As shown, a wind baffle 13 is also provided on the outer surface of the inverter back cover 3, and the wind baffle 13 is located between the heat exchanger 5 and the radiator fan 7.

[0045] The air ducts of the heat exchanger 5 and the radiator 8 are separated by the inverter back cover 3 and the baffle plate 13, so that they do not affect each other.

[0046] The external air duct of heat exchanger 5 is composed of the inverter back protection plate, the baffle plate 13 and the side heat dissipation teeth of radiator 8.

[0047] After the airflow from heat exchanger fan 6 passes through heat exchanger 5 for heat exchange, it is split to both sides by the baffle plate 13 and the side cooling fins of radiator 8, and flows into the surrounding environment from the air outlet of inverter back cover 3, with the flow direction as follows: Figure 5 As shown by the middle arrow. The airflow direction inside heat exchanger 5 is as follows. Figure 5 As shown by the middle arrow, the heat exchanger 5 has an internal inverter fan 11 and a fan bracket 12 installed at the corresponding position inside the inverter cavity. The fan bracket 12 is close to the inside of the inverter cavity 4. The internal fan installed on it blows the air inside the cavity after heat exchange by the heat exchanger 5 back into the inverter cavity 4. An internal inverter fan 11 is also installed at the end away from the inverter. The air outlet cavity 15 and the air inlet cavity 14 are symmetrically arranged about the heat exchanger 5. The two internal inverter fans 11 work together to cool the turbulent flow inside the inverter cavity.

[0048] When maintenance of the heat exchanger 5 system is required, simply remove the removable mounting plate 2 to perform component replacement, dust removal, and other tasks. Furthermore, the heat exchanger 5 is internally connected to the inverter cavity 4, and the inverter cavity 4 itself has excellent sealing properties, greatly reducing the problem of airflow blockage within the heat exchanger 5 and lowering the difficulty of later maintenance. The airflow ducts of the heat exchanger 5 and the radiator 8 are independent of each other and do not interfere with each other. When the external ambient temperature is low, the heat exchanger fan 6 can be turned off to reduce product wear and improve operating efficiency.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A maintenance-friendly photovoltaic inverter heat exchange structure, characterized in that, include: Inverter housing, inverter back cover, removable mounting plate, heat exchanger, radiator, and heat-generating components; The inverter back cover is installed on one side of the inverter cavity, and the inverter cavity and the inverter back cover form an accommodating space. The heat exchanger, radiator and heat-generating components are all arranged in the accommodating space. The heat-generating components are distributed on both sides of the radiator. The heat exchanger is arranged at one end of the radiator. The mounting plate is arranged on the inverter back cover.

2. A heat exchange structure for a photovoltaic inverter according to claim 1, characterized in that: The radiator fan is located inside the back cover of the inverter and is situated on top of the radiator; multiple radiator fans are provided.

3. The easily maintainable photovoltaic inverter heat exchange structure according to claim 2, characterized in that: The air outlet plane of the radiator fan is parallel to the base plate of the radiator.

4. A maintenance-friendly photovoltaic inverter heat exchange structure according to claim 3, characterized in that: A steel mesh protective cover for the heat exchanger fan is mounted on the mounting plate.

5. A maintenance-friendly photovoltaic inverter heat exchange structure according to claim 4, characterized in that: The heat exchanger fan and the heat exchanger are located at the same end of the radiator, and the heat exchanger is disposed between the heat exchanger fan and the radiator.

6. A maintenance-friendly photovoltaic inverter heat exchange structure according to claim 5, characterized in that: The inverter cavity is equipped with internal fans at both ends.

7. The easily maintainable photovoltaic inverter heat exchange structure according to claim 6, characterized in that: The inverter internal fan at one end near the heat exchanger is mounted inside the inverter cavity via a fan bracket, while the inverter internal fan at the other end away from the inverter is mounted on the inner wall of the inverter cavity.

8. The easily maintainable photovoltaic inverter heat exchange structure according to claim 7, characterized in that: The fan bracket has an air inlet chamber at its bottom, and the air outlet chamber and the air inlet chamber are symmetrically arranged about the heat exchanger.

9. A heat exchange structure for an easy-to-maintain photovoltaic inverter according to claim 7 or 8, characterized in that: A wind deflector is also provided on the outer surface of the inverter's back cover, and the wind deflector is located between the heat exchanger and the radiator fan.

10. A maintenance-friendly photovoltaic inverter heat exchange structure according to claim 9, characterized in that: The heat exchanger's external air duct is composed of the inverter's back protective plate, the baffle plate, and the heat dissipation fins on the side of the radiator.

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