Frequency converter structure

Abstract

The utility model provides a frequency converter structure, which comprises a shell, a mounting plate arranged in the shell and a frequency converter assembly arranged on the mounting plate, the vertically arranged mounting plate divides the shell into a first space and a second space, and a heat dissipation device is arranged on a rear panel of the shell. The heat dissipation fins of the main control board penetrate through the mounting plate and extend into the second space, and the two fans synchronously run to form heat dissipation closed convection so as to cool the main control board. A gap is formed in the bottom of the mounting plate, the first space is communicated with the second space through the gap, when the frequency converter cover plate is opened, the fan operates to drive the air flow in the shell to form circulating air, other components on the panel of the mounting plate are cooled, the frequency converter is subjected to multi-directional heat dissipation, and the heat dissipation efficiency is further improved. The utility model has the advantages of simple structure, high integration level, convenient installation, simple operation and convenient front maintenance, and the two frequency converter assemblies are arranged on the installation plate to realize one-to-two.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converters, in particular to a frequency converter structure. Background Art

[0002] With the rapid development of data centers, the high energy consumption characteristics of data centers have gradually become prominent. Green energy conservation is inevitable for the development of data centers. Energy conservation and consumption reduction of computer room air conditioners play a very important role in the green development of data centers. The variable frequency compressor can adjust the operating frequency according to the changes in the internal load of the computer room, save electricity and energy efficiently. Among them, the inverter is a key component in the energy-saving control link. The long-term operation of the inverter causes a great increase in heat. If the inverter is not cooled in time, it will cause damage to the electronic components. Therefore, it is necessary to transform the heat dissipation structure of the inverter, and use a variety of heat dissipation methods to fully cool it down, so as to ensure the normal operation of the inverter. Utility Model Content

[0003] The utility model provides a frequency converter structure for solving the technical problems raised in the background technology.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A frequency converter structure comprises a housing, a mounting plate disposed in the housing, and a frequency converter assembly mounted on the mounting plate; the mounting plate divides the housing into a first space and a second space in an extending direction, the frequency converter assembly is mounted on the front of the mounting plate and is located in the first space, an air outlet is provided on the rear panel of the housing, and a heat dissipation device is installed on the outer side of the air outlet, and the heat dissipation device is connected with the second space through the air outlet to form a closed convection structure;

[0006] It also includes a mounting plate connecting component, which includes a fixing plate arranged at the top of the shell and a support frame located below the fixing plate, with a gap between the support frame and the inner bottom of the shell, the mounting plate is plugged into the support frame, and the top is connected to the fixing plate; the first space is connected to the second space through the gap below the mounting plate to form a circulating heat dissipation structure.

[0007] As a further preferred embodiment of the present invention, the housing is a rectangular structure with one end open, a cover plate is movably connected to the front face, and a fixed support frame is installed at the bottom. A plurality of inlet and outlet holes are provided on the bottom plate of the housing for wiring with the variable frequency compressor and the main electric control box.

[0008] As a further preferred embodiment of the present invention, the top surface of the heat dissipation device is designed as an inclined surface to form an air guide structure, and a mounting hole is provided on the top surface and a heat dissipation fan is installed. There are at least two mounting holes, and a heat dissipation fan is installed in each mounting hole, and the heat dissipation fan adopts an AC axial flow fan.

[0009] As a further preferred embodiment of the present invention, the longitudinal cross-section of the support frame is in a "concave" shape, and the top is a plug-in portion, and the size of the plug-in portion is adapted to the mounting plate.

[0010] As a further preferred embodiment of the present invention, there are at least two groups of inverter components, which are symmetrically arranged on the front side of the mounting plate, and each of the inverter components includes a main control board, a capacitor board, a filter board and an inductor; wherein the main control board is installed at the bottom of the mounting plate, and the cooling fins of the main control board pass through the mounting plate and extend into the second space.

[0011] As a further preferred embodiment of the utility model, a capacitor plate bracket is provided at the upper end of the mounting plate, and the capacitor plate is mounted on the capacitor plate bracket; a filter bracket is provided at the lower end of the mounting plate and located on the left side of the main control board, and the filter plate and the reactor are mounted on the filter bracket.

[0012] Compared with the prior art, the utility model has the following advantages or technical effects:

[0013] A heat dissipation device is installed on the rear panel of the shell. The heat dissipation fins of the main control board pass through the mounting plate and extend into the second space. The two fans run synchronously to form a heat dissipation closed convection to cool the main control board. The top surface of the heat dissipation device is set obliquely, which has a wind guiding effect and can increase the flow speed of air, thereby improving the heat dissipation efficiency. There is a gap at the bottom of the mounting plate, and the first space is connected to the second space through the gap. When the inverter cover is opened, the operation of the fan will drive the airflow in the shell to form a circulating wind, cool down other components on the mounting plate panel, and dissipate heat from multiple directions of the inverter, further improving the heat dissipation efficiency. The utility model has a simple structure, high integration, easy installation, simple operation, and convenient front maintenance. Two sets of inverter components are arranged on the mounting plate to achieve one-to-two. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model and its features, shapes and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts throughout the drawings.

[0015] Figure 1 The structure of the inverter is shown in Figure 2. Figure 1 ;

[0016] Figure 2The structure of the inverter is shown in Figure 2. Figure 2 ;

[0017] Figure 3 The structure of the inverter is shown in Figure 2. Figure 3 ;

[0018] Figure 4 It is a schematic diagram of the mounting plate connection components;

[0019] Figure 5 Schematic diagram of the inverter assembly structure Figure 1 ;

[0020] Figure 6 Schematic diagram of the inverter assembly structure Figure 2 ;

[0021] In the figure, 1, shell, 11, cover plate, 12, fixed support frame, 13, wire inlet and outlet holes, 2, mounting plate, 21, capacitor plate bracket, 22, filter bracket, 3, first space, 4, second space, 5, heat dissipation device, 51, top surface, 52, heat dissipation fan, 6, fixed plate, 7, support frame, 81, main control board, 82, capacitor plate, 83, filter board, 84, reactor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the protection scope of the present invention. Example

[0023] Please refer to the attached Figure 1-Figure 6The utility model provides a frequency converter structure, including a shell 1, a mounting plate 2 vertically arranged in the shell 1, and a frequency converter assembly mounted on the mounting plate 2. The mounting plate 2 divides the shell 1 into a first space 3 and a second space 4 in the extension direction. The frequency converter assembly is mounted on the front of the mounting plate 2 and is located in the first space 3. An air outlet is provided on the rear panel of the shell 1, and a heat dissipation device 5 is installed on the outside of the air outlet. The heat dissipation device 5 is connected with the second space 4 through the air outlet to form a closed convection structure. The mounting plate 2 is fixedly connected to the shell 1 through a mounting plate connecting assembly. The mounting plate connecting assembly includes a fixing plate 6 arranged at the top of the shell 1 and a support frame 7 located below the fixing plate 6. A gap is left between the support frame 7 and the inner bottom of the shell 1. The mounting plate 2 is plugged into the support frame 7, and the top is connected to the fixing plate 6. The first space 3 is connected with the second space 4 through the gap below the mounting plate 2 to form a circulating heat dissipation structure.

[0024] like Figure 4 As shown, the fixing plate 6 is vertically arranged on the inner top of the shell 1, and the upper end is welded and fixed to the top plate of the shell 1. The longitudinal section of the support frame 7 is in a "concave" shape, and the top is a plug-in portion. The size of the plug-in portion is adapted to the mounting plate 2. The mounting plate 2 is plugged into the plug-in portion of the support frame 7. The support frame 7 is processed in one piece, and the two ends are welded or bolted to the side plates of the shell 1. When installing, the mounting plate 2 can be plugged into the support frame 7 first, and then the top of the mounting plate 2 can be fixedly connected to the fixing plate 6 by bolts; when disassembling and inspecting, first unscrew the bolts on the top of the mounting plate 2 to disassemble it from the fixing plate 6, and then directly take out the mounting plate 2. The utility model has a simple structure and is easy to install, which can improve the installation and disassembly efficiency of the operator.

[0025] To further illustrate, the top surface 51 of the heat dissipation device 5 is designed as an inclined surface, and two mounting holes are provided on the top surface 51, and heat dissipation fans 52 are installed in both mounting holes. Figure 5 As shown, two groups of frequency converter components are provided, which are symmetrically arranged on the front of the mounting plate 2, and each frequency converter component includes a main control board 81, a capacitor plate 82, a filter plate 83 and a reactor 84. Among them, the main control board 81 is installed at the bottom of the mounting plate 2, and the heat dissipation fins of the main control board 81 pass through the mounting plate 2 and extend into the second space 4. A capacitor plate bracket 21 is provided at the upper end of the mounting plate 2, and a capacitor plate 82 is installed on the capacitor plate bracket 21. A filter bracket 22 is provided at the lower end of the mounting plate 2 and located on the left side of the main control board 81, and the filter plate 83 and the reactor 84 are installed on the filter bracket 22. The two heat dissipation fans 52 operate synchronously to form a heat dissipation closed convection to cool the main control board 81. The obliquely designed top surface 51 is located between the main control board 81 and the heat dissipation fan 52, which has a good guiding effect on the airflow in the second space, and can increase the flow speed of the air in the second space, thereby improving the heat dissipation efficiency of the main control board 81.

[0026] In the above structure, the heat dissipation fan 52 is an AC axial flow fan.

[0027] Further explanation, the housing 1 is a rectangular structure with one end open, and a cover plate 11 is movably connected to its front face. When the inverter cover plate 11 is opened, the operation of the heat dissipation fan 52 will drive the airflow in the housing 1 to form a circulating wind, cool down other components on the panel of the mounting plate 2, and dissipate heat from multiple directions of the inverter, further improving the heat dissipation efficiency. A fixed support frame 12 is installed at the bottom of the housing 1, and a plurality of inlet and outlet wire holes 13 are opened on the bottom plate of the housing 1 for wiring with the variable frequency compressor and the main electric control box.

[0028] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A frequency converter structure, characterized in that: The invention comprises a housing (1), a mounting plate (2) disposed in the housing (1), and a frequency converter assembly mounted on the mounting plate (2); the mounting plate (2) divides the housing (1) into a first space (3) and a second space (4) in an extending direction; the frequency converter assembly is mounted on the front of the mounting plate (2) and is located in the first space (3); an air outlet is provided on the rear panel of the housing (1), and a heat dissipation device (5) is installed outside the air outlet; the heat dissipation device (5) is connected to the second space (4) through the air outlet to form a closed convection structure; It also includes a mounting plate connection assembly, the mounting plate connection assembly comprising a fixing plate (6) arranged at the top of the shell (1), a support frame (7) located below the fixing plate (6), a gap being left between the support frame (7) and the inner bottom of the shell (1), the mounting plate (2) being plugged into the support frame (7), and the top being connected to the fixing plate (6); the first space (3) is connected to the second space (4) through the gap below the mounting plate (2) to form a circulating heat dissipation structure.

2. A frequency converter structure according to claim 1, characterized in that: The housing (1) is a rectangular structure with one end open, and a front end surface thereof is movably connected to a cover plate (11).

3. A frequency converter structure according to claim 1, characterized in that: The top surface (51) of the heat dissipation device (5) is designed as an inclined surface to form an air guide structure, and a mounting hole is provided on the top surface (51) and a heat dissipation fan (52) is installed thereon.

4. A frequency converter structure according to claim 3, characterized in that: At least two heat dissipation fans (52) are installed.

5. A frequency converter structure according to claim 3, characterized in that: The heat dissipation fan (52) is an AC axial flow fan.

6. A frequency converter structure according to claim 1, characterized in that: The longitudinal cross-section of the support frame (7) is in a "concave" shape, with the top being a plug-in portion, the size of the plug-in portion being adapted to the mounting plate (2).

7. The frequency converter structure according to claim 1, characterized in that: At least two groups of frequency converter components are provided, which are symmetrically arranged on the front side of the mounting plate (2), and each of the frequency converter components comprises a main control board (81), a capacitor board (82), a filter board (83) and a reactor (84); wherein the main control board (81) is installed at the bottom of the mounting plate (2), and the heat dissipation fins of the main control board (81) pass through the mounting plate (2) and extend into the second space (4).

8. A frequency converter structure according to claim 7, characterized in that: A capacitor plate bracket (21) is provided at the upper end of the mounting plate (2), and the capacitor plate (82) is mounted on the capacitor plate bracket (21); a filter bracket (22) is provided at the lower end of the mounting plate (2) and located on the left side of the main control board (81), and the filter board (83) and the reactor (84) are mounted on the filter bracket (22).

9. The frequency converter structure according to claim 1, characterized in that: A fixed support frame (12) is installed at the bottom of the shell (1).

10. The frequency converter structure according to claim 1, characterized in that: A plurality of wire inlet and outlet holes (13) are provided on the bottom plate of the housing (1) for connecting wires to the variable frequency compressor and the main electric control box.

Images