Integrated air duct structure of inverter

Abstract

The utility model discloses an integrated air duct structure of an inverter, which comprises an integrated air duct structure main body arranged on an inverter box body and a heat radiator accommodated at the upper part in the integrated air duct structure main body, and the integrated air duct structure main body is provided with a heat radiation air outlet at the air outlet of the heat radiator. A heat dissipation air inlet is formed in the bottom wall, opposite to the heat dissipation air outlet, of the integrated air duct structure body, a fan and a fan filter screen are installed at the heat dissipation air inlet, and draining holes are formed in the two sides of the heat dissipation air inlet in the bottom wall of the integrated air duct structure body; flow guide plates inclined along the draining holes are arranged on two side walls below the radiator in the integrated air duct structure main body; structural parts of the structure are few, the cost is reduced, the fan is convenient to disassemble and maintain, rainwater is collected to the drain outlet through the flow guide plate to be discharged, and the overheating risk of the radiator caused by rainwater collection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of inverter heat dissipation, in particular to an inverter integrated air duct structure. Background Art

[0002] As the installed capacity of photovoltaic string inverters increases, small-power string inverters are small in size, requiring the structural parts to integrate multiple functions into one part and reduce the number of air duct structural parts as much as possible; the external cooling fan of the string inverter needs to be maintained frequently, requiring it to be as convenient and quick to disassemble and replace as possible. The radiator is installed behind the inverter box, which is often exposed to rain outdoors. When it is left for a long time and there is debris and dust, it needs to be manually sprayed with water for cleaning, which requires the air duct plate to have a good drainage function.

[0003] The existing wind duct structure of the string inverter is composed of several sheet metal parts, such as Figure 1 As shown, the fan 54 and the fan filter 55 are fixed to the fan mounting plate 55 by four screws 56, and the fan fixing plate 55 has six water leakage holes. After the entire fan assembly is pre-assembled, the fan fixing plate 52 is fixed to the air duct plate 51 by screws 53 on both sides. The air guide plate 52 is welded on the inner side of the air duct plate 51 to gather the cold air blown in by the fan into the teeth of the radiator 57.

[0004] This type of duct structure is relatively complex, and the structural parts include duct plate 51, air guide plate 52, fan fixing plate 52, screws 53, fan filter 55, and screws 56, and the overall cost is relatively high; this type of duct structure is also relatively cumbersome to maintain the fan. First, it is necessary to remove the screws 56 on both sides of the duct plate 51, take out the fan assembly as a whole, and then remove the screws 53, and remove the fan filter 55 and the fan 54. In order to meet the cooling requirements of the radiator fins, it is necessary to weld an air guide plate 52 on the inside of the duct plate 51 to support the fins of the radiator 57. The fan fixing plate 52 has 6 water leakage holes, but there is no water guide structure. When the rain is too heavy, there is a risk of water accumulation in the duct plate. Utility Model Content

[0005] The technical problem to be solved by the utility model is to propose an inverter integrated air duct structure, which has fewer structural parts, reduces costs, and is easy to disassemble and maintain the fan. Rainwater is collected through a guide plate and discharged to a drain port, thereby reducing the risk of overheating of the radiator due to the collection of rainwater.

[0006] In order to solve the above technical problems, the utility model provides an inverter integrated air duct structure, comprising an integrated air duct structure main body arranged on an inverter box body, and a radiator accommodated in the upper inner part of the integrated air duct structure main body, the integrated air duct structure main body is integrally formed of plastic, the integrated air duct structure main body is provided with a heat dissipation outlet at the air outlet of the radiator, the integrated air duct structure main body is provided with a heat dissipation inlet on the bottom wall opposite to the heat dissipation outlet, a fan and a fan filter are installed at the heat dissipation inlet, drainage holes are provided on both sides of the heat dissipation inlet of the bottom wall of the integrated air duct structure main body, and guide plates inclined along the drainage holes are provided on both side walls below the radiator inside the integrated air duct structure main body; a groove is provided on the side of the bottom wall of the integrated air duct structure main body facing away from the radiator, the groove is provided with a fan mounting column, and the fan is installed in the groove through the fan mounting column; the fan mounting column is a plastic mounting column, and the fan is interference fit with the plastic mounting column through the mounting hole.

[0007] Preferably, the fan filter is provided with grid holes and is mounted on the bottom wall of the integrated air duct structure body in a snap-on manner to cover the fan.

[0008] Preferably, there are four fan mounting posts, and the main body of the fan is provided with four mounting holes which are symmetrically distributed around the center of the fan main body and correspond to the fan mounting posts.

[0009] Preferably, the radiator is a fin radiator, and the fins are arranged parallel to the air duct direction of the integrated air duct structure body.

[0010] After adopting the above device, the inverter integrated air duct structure includes an integrated air duct structure body arranged on the inverter box body, a radiator accommodated in the upper part of the integrated air duct structure body, the integrated air duct structure body is integrally formed of plastic, the integrated air duct structure body is provided with a heat dissipation outlet at the radiator outlet, the integrated air duct structure body is provided with a heat dissipation air inlet on the bottom wall opposite to the heat dissipation air outlet, a fan and a fan filter are installed at the heat dissipation air inlet, drainage holes are provided on both sides of the heat dissipation air inlet of the bottom wall of the integrated air duct structure body, and the integrated air duct structure Guide plates inclined along the drainage hole are arranged on the two side walls below the radiator inside the main body of the structure; a groove is arranged on the bottom wall of the main body of the integrated air duct structure on the side away from the radiator, and the groove is provided with a fan mounting column, and the fan is installed in the groove through the fan mounting column; the fan mounting column is a plastic mounting column, and the fan is interference fit with the plastic mounting column through the mounting hole; the inverter integrated air duct structure has fewer structural parts, reduces the cost, and the fan is easy to disassemble and maintain, and the rainwater is collected through the guide plate to the drain port for discharge, reducing the risk of overheating of the radiator due to the collection of rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The structure of the inverter air duct structure of the prior art of the utility model Figure 1 ;

[0012] Figure 2 The structure of the inverter air duct structure of the prior art of the utility model Figure 2 ;

[0013] Figure 3 The overall structure of the inverter integrated air duct structure of the utility model Figure 1 ;

[0014] Figure 4 The overall structure of the inverter integrated air duct structure of the utility model Figure 2 ;

[0015] Figure 5 This is an exploded view of the installation of the fan and fan filter of the inverter integrated air duct structure of the utility model;

[0016] Figure 6 This is a wind duct direction diagram of the inverter integrated wind duct structure of the utility model.

[0017] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0019] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] Embodiment 1

[0021] See also Figure 3 , Figure 4 and Figure 5 , Figure 3 The overall structure of the inverter integrated air duct structure of the utility model Figure 1 , Figure 4The overall structure of the inverter integrated air duct structure of the utility model Figure 2 , Figure 5 This is an exploded view of the installation of the fan and fan filter of the inverter integrated air duct structure of the utility model;

[0022] The present embodiment discloses an inverter integrated air duct structure, comprising an integrated air duct structure main body 11 arranged on an inverter box, and a heat sink 41 accommodated in the upper part of the integrated air duct structure main body 11, wherein the integrated air duct structure main body 11 is integrally formed of plastic; the integrated air duct structure main body 11 is provided with a heat dissipation outlet 60 at the air outlet of the radiator, and the integrated air duct structure main body 11 is provided with a heat dissipation air inlet 70 at the middle part of the bottom wall opposite to the heat dissipation air outlet 60, and a fan 31 and a fan filter 21 are installed at the heat dissipation air inlet 70, Drain holes 12 are provided on both sides of the heat dissipation air inlet 70 of the bottom wall of the integrated air duct structure main body 11, and guide plates 13 inclined along the drain holes 12 are provided on the two side walls below the radiator 41 in the integrated air duct structure main body 11; a groove is provided on the side of the bottom wall of the integrated air duct structure main body 11 facing away from the radiator 41, and a fan mounting column 14 is provided in the groove, and the fan 31 is installed in the groove through the fan mounting column 14, and the fan mounting column is a plastic mounting column, and the fan is interference fit with the plastic mounting column through the mounting hole.

[0023] Embodiment 2

[0024] This embodiment is based on the first embodiment. In this embodiment,

[0025] In this embodiment, the fan filter 21 is provided with grid holes and is mounted on the bottom wall of the integrated air duct structure body 11 in a snap-fit ​​manner and covers the fan 31 .

[0026] Embodiment 3

[0027] This embodiment is based on the first embodiment. In this embodiment,

[0028] There are four fan mounting columns, and the main body of the fan is provided with four mounting holes which are symmetrically distributed around the center of the fan main body and correspond to the fan mounting columns.

[0029] The radiator is a fin radiator, and the fins are arranged in parallel to the air duct direction of the integrated air duct structure body.

[0030] Implementation process reference Figures 5 and 6, first cover the integrated air duct structure body 11 on the radiator 41, and install the entire assembly on the string inverter box; the fan 31 is positioned and installed through the fan mounting column 14, and the mounting column and the fan 31 are interference-fit installations to ensure the smooth operation of the fan; install the fan filter on the integrated air duct structure body 11, and the fan filter 21 can give the fan an inward force to resist the outer surface of the fan to complete the fan installation; when the fan 31 needs to be maintained and disassembled, it is only necessary to remove the fan filter 21 and the fan 31 for maintenance. During operation, cold air blows from the fan 31 through the radiator 41, and the hot air is discharged from the other side of the radiator after cooling; when rainwater enters the integrated air duct structure body 11, it is collected in the drain hole 12 through the guide plates 13 on both sides and discharged to the outside, and some rainwater can also be discharged from the fan hole.

[0031] The inverter integrated air duct structure has fewer structural parts, which reduces costs. The fan is easy to disassemble and maintain, and rainwater can be collected through the guide plate and discharged to the drain port, reducing the risk of overheating of the radiator due to the collection of rainwater.

[0032] The preferred embodiments of the present application are described above with reference to the accompanying drawings, but the scope of the present application is not limited thereby. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present application shall be within the scope of the present application.

Claims

1. An inverter integrated air duct structure, characterized in that: The heat dissipation device is a heat dissipation device, and the heat dissipation device is a heat dissipation device. The heat dissipation device is a heat dissipation device, and the heat dissipation device is a fan. The heat dissipation device is a fan that is installed in the heat dissipation device. The heat dissipation device is a fan that is installed in the heat dissipation device. The heat dissipation device is a fan that is installed in the heat dissipation device. The heat dissipation device is a fan that is installed in the heat dissipation device.

2. The inverter integrated air duct structure according to claim 1, characterized in that: The fan filter is provided with grid holes and is mounted on the bottom wall of the integrated air duct structure body in a snap-fit ​​manner to cover the fan.

3. The inverter integrated air duct structure according to claim 1, characterized in that: There are four fan mounting posts, and the main body of the fan is provided with four mounting holes which are symmetrically distributed around the center of the fan main body and correspond to the fan mounting posts.

4. The inverter integrated air duct structure according to claim 1, characterized in that: The radiator is a fin radiator, and the fins are arranged in parallel to the air duct direction of the integrated air duct structure body.

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