Grid-connected converter device

Abstract

The utility model discloses a grid-connected converter device which comprises a box body module and an electronic device module, the electronic device module is installed on the box body module, and the box body module comprises a first frame, a second frame and a support unit. The first frame comprises an installation frame, a top plate, a bottom plate, a front plate, a first side plate and a second side plate, wherein the top plate, the bottom plate, the front plate, the first side plate and the second side plate are installed on the installation frame. The top and the bottom of the installation frame are provided with a first extending installation plate and a second extending installation plate respectively. According to the grid-connected converter device disclosed by the utility model, linkage is carried out through the box body module and the electronic device module, so that the electronic unit is mounted on the corresponding frame through the bracket unit, the structural strength and the shock resistance are improved, and the heat dissipation performance is improved due to the arrangement of a plurality of heat dissipation holes.

Description

Technical Field

[0001] The utility model belongs to the technical field of converters, and in particular relates to a grid-connected converter device. Background Art

[0002] A converter is an electrical device that changes the voltage, frequency, number of phases and other electrical quantities or characteristics of a power system. Under certain conditions, a set of thyristor circuits can be used as both a rectifier circuit and an inverter circuit. This device is called a converter.

[0003] The existing inverter frame structure is simple, and many electronic devices are simply and directly fixed on the inside of the frame, with low seismic resistance and structural strength. In addition, the inverter will generate high heat when working, which needs to be discharged in time. The existing frame has few heat dissipation structures, which will affect the quality of use.

[0004] Therefore, further improvements are made to the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a grid-connected converter device, which is linked by a box module and an electronic device module so that the electronic unit is installed on the corresponding frame through a bracket unit, thereby improving the structural strength and seismic resistance, and is provided with multiple heat dissipation holes to improve the heat dissipation performance.

[0006] In order to achieve the above object, the utility model provides a grid-connected converter device, comprising a box module and an electronic device module, wherein the electronic device module is installed in the box module, wherein:

[0007] The box module includes a first frame, a second frame and a bracket unit, wherein:

[0008] The first frame includes a mounting frame and a top plate, a bottom plate, a front plate, a first side plate and a second side plate mounted on the mounting frame, the top and the bottom of the mounting frame are respectively provided with a first extended mounting plate and a second extended mounting plate; the top plate is provided with a plurality of first heat dissipation holes and the bottom plate is provided with a plurality of second heat dissipation holes, and the front plate is provided with a display screen mounting area and a plurality of third heat dissipation holes;

[0009] The second frame is fixedly mounted on a side of the first frame away from the front plate and the second frame is provided with a plurality of fourth heat dissipation holes;

[0010] The bracket unit includes a display screen mounting frame, a main control board mounting frame and a drive board mounting frame mounted on the mounting frame;

[0011] The electronic device module comprises a first electronic unit and a second electronic unit, the first electronic unit is built into the first frame and the second electronic unit is built into the second frame, wherein:

[0012] The first electronic unit includes a display screen, a main control board, a drive board, power devices (IGBTs), an AC side circuit board, and a DC side circuit board. The display screen is installed on the display screen mounting bracket and located in the display screen mounting area. The main control board is installed on the main control board mounting bracket and the drive board is installed on the drive board mounting bracket. The power devices are electrically connected to the drive board, the AC side circuit board, and the DC side circuit board respectively;

[0013] The second electronic unit includes a reactor circuit board and a radiator. The reactor circuit board is connected to the AC side circuit board (the installation frame is provided with a connection through-hole area), and the power devices are installed on one side of the radiator close to the installation frame.

[0014] As a further preferred technical solution of the above technical solution, a plurality of cooling fans are provided on the outer side of the second frame, and the cooling fans are aligned with the radiator (the heat generated by the power devices is transferred to the radiator for heat dissipation. In order to accelerate heat dissipation, a cooling fan is provided below the radiator, which is beneficial to quickly discharge the heat from the fourth heat dissipation hole).

[0015] As a further preferred technical solution of the above technical solution, the top plate is provided with connection terminals.

[0016] As a further preferred technical solution of the above technical solution, the installation frame is provided with a first bending portion and a second bending portion, and the display screen mounting bracket is fixedly installed between the first bending portion and the second bending portion.

[0017] As a further preferred technical solution of the above technical solution, both the first extended mounting plate and the second extended mounting plate are provided with mounting holes (for installing the entire device at a preset position). Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a grid-connected inverter device of the present invention.

[0019] Figure 2 It is a schematic structural diagram of a grid-connected inverter device of the present invention.

[0020] Figure 3 It is a schematic structural diagram of a grid-connected inverter device of the present invention.

[0021] Figure 4 It is a schematic structural diagram of a grid-connected inverter device of the present invention.

[0022] Figure 5 It is a schematic structural diagram of a grid-connected inverter device of the present invention.

[0023] Reference numerals include: 100, cabinet module; 110, first frame; 111, mounting frame; 1111, first extended mounting plate; 1112, second extended mounting plate; 112, top plate; 1121, first heat dissipation hole; 1122, connection terminal; 113, bottom plate; 1131, second heat dissipation hole; 114, front plate; 1141, display installation area; 1142, second heat dissipation hole; 115, first side plate; 116, second side plate; 120, second frame; 121, fourth heat dissipation hole; 122, cooling fan; 130, bracket unit; 131, display mounting bracket; 132, main control board mounting bracket; 133, drive board mounting bracket; 200, electronic device module; 210, first electronic unit; 211, display; 212, main control board; 213, drive board; 214, power device; 215, AC side circuit board; 216, DC side circuit board; 220, second electronic unit; 221, reactor circuit board; 222, radiator. Detailed implementation

[0024] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0025] The present utility model discloses a grid-connected converter device. The specific embodiments of the utility model will be further described below in conjunction with the preferred embodiments.

[0026] In the embodiments of the present utility model, those skilled in the art should note that the preset positions and the like involved in the present utility model can be regarded as the prior art.

[0027] Preferred embodiment.

[0028] As Figures 1-5 shown, the present utility model discloses a grid-connected converter device, including a cabinet module 100 and an electronic device module 200. The electronic device module 200 is installed in the cabinet module 100, wherein:

[0029] The cabinet module 100 includes a first frame 110, a second frame 120 and a bracket unit 130, wherein:

[0030] The first frame 110 includes a mounting frame 111 and a top plate 112, a bottom plate 113, a front plate 114, a first side plate 115 and a second side plate 116 mounted on the mounting frame 111. The top and bottom of the mounting frame 111 are respectively provided with a first extended mounting plate 1111 and a second extended mounting plate 1112; the top plate 112 is provided with a plurality of first heat dissipation holes 1121 and the bottom plate 113 is provided with a plurality of second heat dissipation holes 1131; the front plate 114 is provided with a display screen mounting area 1141 and a plurality of third heat dissipation holes 1142;

[0031] The second frame 120 is fixedly mounted on a side of the first frame 110 away from the front plate 114 and the second frame 120 is provided with a plurality of fourth heat dissipation holes 121;

[0032] The bracket unit 130 includes a display screen mounting frame 131, a main control board mounting frame 132 and a drive board mounting frame 133 mounted on the mounting frame 111;

[0033] The electronic device module 200 includes a first electronic unit 210 and a second electronic unit 220, wherein the first electronic unit 210 is built into the first frame 110 and the second electronic unit 220 is built into the second frame 120, wherein:

[0034] The first electronic unit 210 includes a display screen 211, a main control board 212, a drive board 213, a power device 214 (IGBT), an AC side circuit board 215, and a DC side circuit board 216. The display screen 211 is installed on the display screen mounting frame 131 and is located in the display screen mounting area 1141. The main control board 212 is installed on the main control board mounting frame 132 and the drive board 213 is installed on the drive board mounting frame 133. The power device 214 is electrically connected to the drive board 213, the AC side circuit board 215, and the DC side circuit board 216 respectively.

[0035] The second electronic unit 220 includes a reactor circuit board 221 and a heat sink 222 . The reactor circuit board 221 is connected to the AC side circuit board 215 (the mounting frame is provided with a connecting through-hole area) and the power device 214 is mounted on a side of the heat sink 222 close to the mounting frame 111 .

[0036] Specifically, a plurality of cooling fans 122 are provided on the outer side of the second frame 120 and the cooling fans 122 are aimed at the radiator 222 (the heat generated by the power device is transferred to the radiator for heat dissipation. In order to speed up the heat dissipation, a cooling fan is provided under the radiator to facilitate the rapid discharge of heat from the fourth heat dissipation hole. Moreover, the radiator is installed inside the second frame, which does not affect the compact overall layout of the first electronic unit inside the first frame, thereby improving the overall structural layout).

[0037] More specifically, the top plate 112 is provided with connection terminals 1122.

[0038] Furthermore, the mounting frame is provided with a first bending portion and a second bending portion (not shown), and the display screen mounting bracket is fixedly installed between the first bending portion and the second bending portion (to improve the structural strength).

[0039] Even further, both the first extended mounting plate and the second extended mounting plate are provided with mounting holes (for installing the entire device at a preset position).

[0040] It is worth mentioning that technical features such as the preset position involved in the patent application of the present utility model should be regarded as the prior art. The specific structures, working principles, and possible control methods and spatial arrangement methods of these technical features can be selected conventionally in the art and should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0041] For those skilled in the art, it is still possible to modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A grid-connected converter device, characterized in that, It includes a box module and an electronic device module, and the electronic device module is installed in the box module, where: The box module includes a first frame, a second frame and a bracket unit, where: The first frame includes a mounting frame and a top plate, a bottom plate, a front plate, a first side plate and a second side plate mounted on the mounting frame. A first extended mounting plate and a second extended mounting plate are respectively provided at the top and bottom of the mounting frame; The top plate is provided with a plurality of first heat dissipation holes and the bottom plate is provided with a plurality of second heat dissipation holes, and the front plate is provided with a display installation area and a plurality of third heat dissipation holes; The second frame is fixedly installed on the side of the first frame away from the front plate and the second frame is provided with a plurality of fourth heat dissipation holes; The bracket unit includes a display mounting bracket, a main control board mounting bracket and a drive board mounting bracket installed on the mounting frame; The electronic device module includes a first electronic unit and a second electronic unit. The first electronic unit is built in the first frame and the second electronic unit is built in the second frame, where: The first electronic unit includes a display screen, a main control board, a drive board, a power device, an AC side circuit board and a DC side circuit board. The display screen is installed on the display mounting bracket and is located in the display installation area. The main control board is installed on the main control board mounting bracket and the drive board is installed on the drive board mounting bracket. The power device is electrically connected to the drive board, the AC side circuit board and the DC side circuit board respectively; The second electronic unit includes a reactor circuit board and a radiator. The reactor circuit board is connected to the AC side circuit board and the power device is installed on one side of the radiator close to the mounting frame.

2. The grid-connected converter device according to claim 1, characterized in that, A plurality of cooling fans are provided on the outer side of the second frame and the cooling fans are aligned with the radiator.

3. The grid-connected inverter device according to claim 2, characterized in that The top plate is provided with connection terminals.

4. The grid-connected converter device according to claim 3, characterized in that, The mounting frame is provided with a first bending part and a second bending part, and the display mounting bracket is fixedly installed between the first bending part and the second bending part.

5. An on-grid converter device according to claim 4, characterized in that, Both the first extended mounting plate and the second extended mounting plate are provided with mounting holes.

Images