Main control board, controller, outdoor unit and air conditioner of air conditioning system

Abstract

The utility model discloses a main control board, a controller, an outdoor unit and an air conditioner of an air conditioning system, the main control board is divided into a first area and a heat dissipation area, and the first area and the heat dissipation area are sequentially arranged along the same direction; the PFC inductance module is arranged in the first area; the rectification PFC module and the power device module are arranged in the heat dissipation area; wherein the rectification PFC module is arranged at a position close to the PFC inductor module in the heat dissipation area and is connected with the PFC inductor module; the power device module is arranged at the position, away from the PFC inductor module, in the heat dissipation area and connected with the rectification PFC module, so that the main control board does not need to bypass the PFC inductor module and the rectification PFC module when input and output wire arrangement is carried out on the side face of the power device module, the wire arrangement complexity of the main control board is effectively reduced, and the equipment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a main control board, a controller, an outdoor unit and an air conditioner of an air conditioning system. Background Art

[0002] In the main control board of an air conditioner, a power factor correction (PFC) circuit is often used to control the power device module. The PFC circuit includes a PFC inductor module and a rectifier PFC module, which are connected to the power device module. However, in the wiring layout of a traditional main control board, when the PFC inductor module, rectifier PFC module, and power device module are installed, the PFC inductor module and rectifier PFC module are usually placed on the side of the power device module. This means that when the power device module is connected to the side of the input and output wiring, it is necessary to bypass the PFC inductor module and rectifier PFC module, resulting in a high complexity of the wiring of the main control board and increased equipment cost. Utility Model Content

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a main control board, controller, outdoor unit and air conditioner for an air-conditioning system, which can effectively reduce the wiring complexity of the main control board and reduce equipment costs.

[0004] In a first aspect, an embodiment of the present invention provides a main control board of an air conditioning system, the air conditioning system including a PFC inductor module, a rectifier PFC module, and a power device module. The main control board is divided into a first area and a heat dissipation area, and the first area and the heat dissipation area are arranged sequentially along the same direction; the PFC inductor module is arranged in the first area; the rectifier PFC module and the power device module are arranged in the heat dissipation area; wherein: the rectifier PFC module is arranged in a position close to the PFC inductor module in the heat dissipation area and is connected to the PFC inductor module; the power device module is arranged in a position away from the PFC inductor module in the heat dissipation area and is connected to the rectifier PFC module.

[0005] In some embodiments, the air-conditioning system further includes a bus capacitor module, and the main control board is further divided into a second area, which is adjacent to the heat dissipation area; the bus capacitor module is arranged in the second area and connected to the rectifier PFC module and the power device module.

[0006] In some embodiments, the busbar capacitor module includes a first busbar capacitor sub-module and a second busbar capacitor sub-module, the power device module includes a compressor IPM module and a fan IPM module, the rectifier PFC module, the first busbar capacitor sub-module, the compressor IPM module, the second busbar capacitor sub-module and the fan IPM module are connected in sequence; the second area includes a first sub-area and a second sub-area, the first busbar capacitor sub-module is arranged in the first sub-area, and the second busbar capacitor sub-module is arranged in the second sub-area.

[0007] In some embodiments, the first sub-area is close to the location of the compressor IPM module in the heat dissipation area, and the second sub-area is close to the location of the fan IPM module in the heat dissipation area.

[0008] In some embodiments, the first sub-region and the second sub-region are located on the same side of the heat dissipation region.

[0009] In some embodiments, the first sub-region and the second sub-region are located on different sides of the heat dissipation region.

[0010] In some embodiments, the first area and the heat dissipation area are arranged along the long side of the main control board and close to the long side edge of the main control board.

[0011] In some embodiments, the air conditioning system further includes a strong electric filter module, and the main control board is further divided into a third area, which is adjacent to the first area; the strong electric filter module is arranged in the third area and connected to the PFC inductor module.

[0012] In some embodiments, the third area and the first area are arranged along a short side of the main control board and close to an edge of the short side of the main control board.

[0013] In a second aspect, an embodiment of the present invention provides a controller comprising the main control board described in any embodiment of the first aspect.

[0014] In a third aspect, an embodiment of the present invention provides an outdoor unit, comprising the main control board described in any one of the embodiments of the first aspect, or comprising the controller described in any one of the embodiments of the second aspect.

[0015] In a fourth aspect, an embodiment of the present invention provides an air conditioner, comprising the main control board described in any embodiment of the first aspect, or the controller described in any embodiment of the second aspect, or the outdoor unit described in any embodiment of the third aspect.

[0016] According to an embodiment of the present invention, a main control board, a controller, an outdoor unit, and an air conditioner are provided, which have at least the following beneficial effects: the main control board of the air conditioning system provided by the embodiment of the present invention is divided into a first area and a heat dissipation area, the first area and the heat dissipation area are arranged sequentially along the same direction, the PFC inductor module is arranged in the first area, and the rectifier PFC module and the power device module are arranged in the heat dissipation area; wherein: the rectifier PFC module is arranged in the heat dissipation area near the PFC inductor module and is connected to the PFC inductor module; the power device module is arranged in the heat dissipation area away from the PFC inductor module and is connected to the rectifier PFC module; the PFC inductor module, the rectifier PFC module, and the power device module can be arranged sequentially along the same direction. In this way, when designing the main control board's wiring, the installation areas of the PFC inductor module and the rectifier PFC module can be prevented from overlapping the wiring area on the side of the power device module. This allows the main control board to avoid having to bypass the PFC inductor module and the rectifier PFC module when routing input and output cables on the side of the power device module. This effectively simplifies the wiring path, reduces unnecessary bends and entanglements on the wiring, and reduces the complexity of the main control board's wiring. Furthermore, by reducing unnecessary bends and entanglements on the wiring, the materials and labor required for wiring the main control board can be reduced, thereby effectively reducing equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is an optional structural diagram of a main control board provided by an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of an optional structure of a main control board provided by an embodiment of the present utility model, in which a second area is provided;

[0021] Figure 3 This is a schematic diagram of an optional structure of a main control board provided by an embodiment of the present utility model, in which sub-areas are provided;

[0022] Figure 4 This is another optional structural diagram of a main control board provided by an embodiment of the present utility model, in which sub-areas are provided;

[0023] Figure 5 This is a schematic diagram of an optional structure of a main control board provided by an embodiment of the present utility model, in which a third area is provided;

[0024] Figure 6 This is a physical schematic diagram of a main control board provided by an embodiment of the utility model.

[0025] Reference numerals:

[0026] 100, main control board; 110, first area; 111, PFC inductor module; 200, heat dissipation area; 210, rectifier PFC module; 220, power device module; 300, second area; 310, bus capacitor module; 311, first sub-area; 312, second sub-area; 313, first bus capacitor sub-module; 314, second bus capacitor sub-module; 400, third area; 410, high-voltage filter module; 510, three-phase controller. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0028] In the description of this utility model, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, and "above," "below," and "within" are understood to include the number itself. "Any one" means one or more, and "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] It should be noted that the terms "set," "install," and "connect" in the embodiments of the present invention should be interpreted broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in the embodiments of the present invention based on the specific content of the technical solution. For example, the term "connect" can refer to mechanical connection, electrical connection, or communication; it can refer to direct connection or indirect connection through an intermediary.

[0030] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as there is no conflict between them.

[0031] In the main control board of an air conditioner, a power factor correction (PFC) circuit is often used to control the power device module. The PFC circuit includes a PFC inductor module and a rectifier PFC module, which are connected to the power device module. However, in the wiring layout of a traditional main control board, when the PFC inductor module, rectifier PFC module, and power device module are installed, the PFC inductor module and rectifier PFC module are usually placed on the side of the power device module. This means that when the power device module is connected to the side of the input and output wiring, it is necessary to bypass the PFC inductor module and rectifier PFC module, resulting in a high complexity of the wiring of the main control board and increased equipment cost.

[0032] Based on this, first of all, reference Figure 1 , Figure 1 This is an optional structural schematic diagram of a main control board 100 provided in an embodiment of the present invention. The embodiment of the present invention provides a main control board 100 of an air-conditioning system, which includes a PFC inductor module 111, a rectifier PFC module 210, and a power device module 220. The main control board 100 is divided into a first area 110 and a heat dissipation area 200, and the first area 110 and the heat dissipation area 200 are arranged in sequence along the same direction. The PFC inductor module 111 is arranged in the first area 110; the rectifier PFC module 210 and the power device module 220 are arranged in the heat dissipation area 200; wherein: the rectifier PFC module 210 is arranged in the heat dissipation area 200 near the PFC inductor module 111 and is connected to the PFC inductor module 111; the power device module 220 is arranged in the heat dissipation area 200 away from the PFC inductor module 111 and is connected to the rectifier PFC module 210.

[0033] Among them, the main control board 100 is the control component in the air-conditioning system, responsible for processing all control logic and signal transmission. The connection in the embodiment of the present invention refers to the electrical connection relationship between different modules. Electrical connection is established between different modules through wires or other connection methods to ensure the transmission of signals and energy.

[0034] The main control board 100 of the air conditioning system provided by the embodiment of the present invention is divided into a first area 110 and a heat dissipation area 200. The first area 110 and the heat dissipation area 200 are arranged sequentially along the same direction. The PFC inductor module 111 is arranged in the first area 110, and the rectifier PFC module 210 and the power device module 220 are arranged in the heat dissipation area 200. The rectifier PFC module 210 is arranged in the heat dissipation area 200 near the PFC inductor module 111 and is connected to the PFC inductor module 111. The power device module 220 is arranged in the heat dissipation area 200 away from the PFC inductor module 111 and is connected to the rectifier PFC module 210. The PFC inductor module 111, the rectifier PFC module 210, and the power device module 220 can be arranged sequentially along the same direction. In this way, when designing the circuitry of the main control board 100, the installation areas of the PFC inductor module 111 and the rectifier PFC module 210 can be prevented from overlapping the wiring area on the side of the power device module 220. This allows the main control board 100 to route input and output cables on the side of the power device module 220 without having to bypass the PFC inductor module 111 and the rectifier PFC module 210. This effectively simplifies the wiring path, reduces unnecessary bends and entanglements in the wiring, and reduces the wiring complexity of the main control board 100. Furthermore, by reducing unnecessary bends and entanglements in the wiring, the materials and labor required for wiring the main control board 100 can be reduced, thereby effectively reducing equipment costs.

[0035] It should be noted that the first area 110 on the main control board 100 is used to install the PFC inductor module 111. The PFC inductor module 111 is used for power factor correction, which can convert AC input into DC output while reducing the harmonic distortion of the input current; the heat dissipation area 200 on the main control board 100 is located after the first area 110, and is used to accommodate the rectifier module and power devices with large heat generation, such as the rectifier PFC module 210 and the power device module 220. The heat dissipation area 200 can use a heat dissipation design, such as a refrigerant radiator, to take away the heat of the power device module 220 through a low-temperature refrigerant, thereby keeping the power device module 220 operating within a safe temperature range.

[0036] It should be noted that the rectifier PFC module 210 is arranged in the heat dissipation area 200 near the PFC inductor module 111, and is used to convert the AC power passing through the PFC inductor module 111 into DC power to provide a stable DC voltage for the system; the power device module 220 is located in the heat dissipation area 200 away from the PFC inductor module 111, is connected to the rectifier PFC module 210, and may include high-power components that require efficient heat dissipation, such as a compressor drive module.

[0037] It is understandable that when the existing main control board 100 is designed to adapt to power devices, the pin position design of the power device will cause the PFC inductor to be arranged adjacent to the power device module 220, such as the power device / refrigerant heat sink. In this case, if the PFC inductor occupies the position on the side of the power device, then the space for high-voltage input and output wiring of the power device module 220 will be limited, and the corresponding wiring path needs to bypass the PFC inductor or other components, increasing the length and complexity of the wiring. However, in the embodiment of the present invention, since the PFC inductor module 111, the rectifier PFC module 210 and the power device module 220 are arranged in sequence along the same direction, the input and output wiring from the side of the power device module 220 is simplified, avoiding the complexity brought about by the need to bypass multiple modules such as the rectifier PFC module 210 and the power device module 220 in the traditional layout. This not only reduces the difficulty of wiring, but also reduces the cost increase caused by the complexity of wiring, thereby effectively reducing the cost of equipment.

[0038] refer to Figure 2 , Figure 2 This is an optional structural diagram of a main control board 100 provided by an embodiment of the present invention, in which a second area 300 is provided; in some embodiments, the air-conditioning system also includes a bus capacitor module 310, and the main control board 100 is further divided into a second area 300, and the second area 300 is adjacent to the heat dissipation area 200; the bus capacitor module 310 is arranged in the second area 300 and is connected to the rectifier PFC module 210 and the power device module 220.

[0039] It should be noted that the second area 300 can be another functional area on the main control board 100 adjacent to the heat dissipation area 200, used to place the bus capacitor module 310. The placement of the bus capacitor module 310 in the second area 300 is used to achieve a convenient connection between the rectifier PFC module 210 and the power device module 220. The bus capacitor module 310 can be composed of multiple bus capacitors, which are used to store and release energy, and to smooth the DC voltage, reduce voltage fluctuations, and ensure the stability of the DC power supply. In this embodiment, the bus capacitor module 310 is arranged in the second area 300 so as to form a compact connection with the rectifier PFC module 210 and the power device module 220.

[0040] It can be understood that the bus capacitor module 310 can provide sufficient capacitance in the DC link to absorb instantaneous current changes, reduce voltage fluctuations, and further stabilize the rectified DC power through the bus capacitor module 310, thereby providing a stable DC power supply for subsequent circuits. By arranging the bus capacitor module 310 in the second area 300 so that it is adjacent to the rectifier PFC module 210 and the power device module 220 in the heat dissipation area 200, the connection path between the bus capacitor module 310 and the two can be shortened, thereby reducing the electromagnetic interference problem caused by long-distance wiring.

[0041] In some embodiments, the second area 300 can be set only on one side of the heat dissipation area 200; in this case, the bus capacitor module 310 in the second area 300 will be located on one side of the rectifier PFC module 210 and the power device module 220, and the bus capacitors on the same side are used to store and release energy, and to smooth the DC voltage, reduce voltage fluctuations, and ensure the stability of the DC power supply.

[0042] In some embodiments, the second area 300 can be respectively arranged on both sides of the heat dissipation area 200; in this case, the bus capacitor module 310 in the second area 300 will be respectively located on both sides of the rectifier PFC module 210 and the power device module 220, and the bus capacitors on both sides are used to store and release energy, and to smooth the DC voltage, reduce voltage fluctuations, and ensure the stability of the DC power supply.

[0043] It should be noted that although the second area 300 is adjacent to the heat dissipation area 200 and the bus capacitor module 310 is arranged in the second area 300, it means that the bus capacitor module 310 may be located in the side wiring area of ​​the power device module 220, but the bus capacitor module 310 can be set on the side of the rectifier PFC module 210, and the input and output wiring of the power device module 220 can be directly led out from the side, so that the bus capacitor module 310 will not hinder the input and output wiring path of the power device module 220, thereby avoiding an increase in wiring complexity; in addition, the position of the bus capacitor module 310 is flexible and can be arranged on both sides of the power device module 220 according to actual needs.

[0044] refer to Figure 3 , Figure 3This is an optional structural diagram of a main control board 100 provided by an embodiment of the present invention, in which sub-areas are provided; in some embodiments, the bus capacitor module 310 includes a first bus capacitor sub-module 313 and a second bus capacitor sub-module 314, the power device module 220 includes a compressor IPM module and a fan IPM module, the rectifier PFC module 210, the first bus capacitor sub-module 313, the compressor IPM module, the second bus capacitor sub-module 314 and the fan IPM module are connected in sequence; the second area 300 includes a first sub-area 311 and a second sub-area 312, the first bus capacitor sub-module 313 is arranged in the first sub-area 311, and the second bus capacitor sub-module 314 is arranged in the second sub-area 312.

[0045] It should be noted that the first bus capacitor sub-module 313 and the second bus capacitor sub-module 314 are used for DC voltage stabilization and smoothing tasks, the compressor IPM module is used to control the operation of the compressor, and the compressor IPM module can integrate inverter and microprocessor modules, and the fan IPM module is used to control the operation of the fan, and the fan IPM module can integrate inverter and microprocessor modules; the first sub-area 311 is used to arrange the first bus capacitor sub-module 313, and the second sub-area 312 is used to arrange the second bus capacitor sub-module 314, so that the modules are connected to the rectifier PFC module 210, the first bus capacitor sub-module 313, the compressor IPM module, the second bus capacitor sub-module 314 and the fan IPM module in sequence.

[0046] It can be understood that the compressor IPM module and the fan IPM module are each used to control different compressor loads and fan loads to achieve independent control of the compressor load and the fan load; further, by dividing the bus capacitor module 310 into two sub-modules, corresponding to the compressor IPM module and the fan IPM module respectively, by sequentially connecting the rectifier PFC module 210, the first bus capacitor sub-module 313, the compressor IPM module, the second bus capacitor sub-module 314 and the fan IPM module, it can be ensured that the current flows in an orderly manner between the modules, avoiding interference caused by complex wiring; further, as the main load, it is controlled by each IPM module to ensure its operating efficiency and stability.

[0047] In some embodiments, the first sub-region 311 is close to the location of the compressor IPM module in the heat dissipation region 200, and the second sub-region 312 is close to the location of the fan IPM module in the heat dissipation region 200. The first sub-region 311 and the second sub-region 312 are located on the same side of the heat dissipation region 200. Figure 3As shown, the busbar capacitor module 310 includes a first busbar capacitor submodule 313 and a second busbar capacitor submodule 314, and the power device module 220 includes a compressor IPM module and a fan IPM module. On this basis, the second area 300 is subdivided into a first sub-area 311 and a second sub-area 312, which are respectively used to arrange the first busbar capacitor submodule 313 and the second busbar capacitor submodule 314. Since the first busbar capacitor submodule 313 is close to the compressor IPM module, it is used to respond to changes in the compressor load, provide stable DC voltage support, and reduce the impact of voltage fluctuations on the pressure. In order to avoid the influence of the compressor operation, the second bus capacitor submodule 314 is adjacent to the fan IPM module and is used to respond to the change of the fan load, provide a smooth DC voltage, and ensure the smooth operation of the fan. The first sub-area 311 and the second sub-area 312 are located on the same side of the heat dissipation area 200, which can effectively simplify the input and output wiring from the side of the power device module 220, avoiding the problem of overly complicated wiring paths, thereby allowing the present invention to simplify the input and output wiring of the power device module 220 on the side, effectively reducing the wiring complexity of the main control board 100, and reducing equipment costs.

[0048] It should be noted that the compressor IPM module is used to receive DC voltage and convert the DC power into AC power suitable for the compressor through an internal inverter. The second bus capacitor sub-module 314 is used to be located after the compressor IPM module and continue to provide a smooth DC voltage to the fan IPM module. The fan IPM module is used to receive the DC voltage from the second bus capacitor sub-module 314 and convert it into AC power suitable for the fan. Moreover, in the above process, the compressor IPM module and the fan IPM module are located in the heat dissipation area 200, and the refrigerant radiator can be used for effective heat transfer to ensure that the temperature of the power device is within a safe range. The bus capacitor sub-module is adjacent to the heat dissipation area 200 and can still obtain a certain degree of heat dissipation assistance.

[0049] refer to Figure 4 , Figure 4 This is another optional structural diagram of a main control board 100 provided by an embodiment of the present invention, in which sub-areas are provided; in some embodiments, the first sub-area 311 is close to the position of the compressor IPM module in the heat dissipation area 200, and the second sub-area 312 is close to the position of the fan IPM module in the heat dissipation area 200, and the first sub-area 311 and the second sub-area 312 are located on different sides of the heat dissipation area 200.

[0050] Among them, the busbar capacitor module 310 includes a first busbar capacitor sub-module 313 and a second busbar capacitor sub-module 314, and the power device module 220 includes a compressor IPM module and a fan IPM module. On this basis, the second area 300 is subdivided into a first sub-area 311 and a second sub-area 312, which are respectively used to arrange the first busbar capacitor sub-module 313 and the second busbar capacitor sub-module 314. The first sub-area 311 is close to the position of the compressor IPM module in the heat dissipation area 200, and the second sub-area 312 is close to the position of the fan IPM module in the heat dissipation area 200, and the first sub-area 311 and the second sub-area 312 are located on different sides of the heat dissipation area 200. The first busbar capacitor sub-module 313 is used to respond to changes in the compressor load, provide stable DC voltage support, and reduce the impact of voltage fluctuations on the operation of the compressor. The second busbar capacitor sub-module 314 is adjacent to the fan IPM module, and is used to respond to changes in the fan load, provide smooth DC voltage, and ensure smooth operation of the fan.

[0051] It should be noted that the first sub-area 311 and the second sub-area 312 are respectively located on different sides of the heat dissipation area 200. Such a layout can make better use of space and can be divided and adjusted into sub-areas according to the wiring requirements of technical personnel in this field during the implementation of the application. It is more flexible and simplifies the input and output wiring from the side of the power device module 220, avoiding the problem of overly complicated wiring paths, effectively reducing the wiring complexity of the main control board 100, and reducing equipment costs.

[0052] In some embodiments, as Figures 1 to 4As shown, the first area 110 and the heat dissipation area 200 are arranged along the long side of the main control board 100 and close to the long side edge of the main control board 100. The main control board 100 of the air conditioning system of the present invention is designed to be clearly divided into the first area 110 and the heat dissipation area 200 near the long side edge of the main control board 100. The two are arranged sequentially in the same direction. The PFC inductor module 111 is placed in the first area 110, while the rectifier PFC module 210 and the power device module 220 are located in the heat dissipation area 200. The rectifier PFC module 210 is arranged adjacent to the PFC inductor module 111 and is directly connected to it, while the power device module 220 is located in the heat dissipation area 200, away from the PFC inductor module 111, but remains connected to the rectifier PFC module 210. This layout can The PFC inductor module 111, the rectifier PFC module 210, and the power device module 220 are ensured to be linearly arranged in the same direction to optimize space utilization. It is also understandable that the wiring planning of the main control board 100 prevents the installation space of the PFC inductor module 111 and the rectifier PFC module 210 from encroaching on the wiring area on the side of the power device module 220, thereby ensuring the directness of the input and output wiring on the side of the power device module 220 without the need for detours, which can effectively simplify the wiring path, reduce unnecessary line bending and winding, and thus reduce the complexity and difficulty of wiring. At the same time, since the complex winding of the lines is reduced, the required wiring materials are reduced. At the same time, the installation and debugging process is also simpler and faster, thereby achieving effective control and reduction of the overall equipment cost.

[0053] refer to Figure 5 , Figure 5 This is an optional structural diagram of a main control board 100 provided by an embodiment of the present invention, in which a third area 400 is provided. In some embodiments, the air conditioning system further includes a strong electric filter module 410, and the main control board 100 is further divided into a third area 400, and the third area 400 is adjacent to the first area 110. The strong electric filter module 410 is arranged in the third area 400 and connected to the PFC inductor module 111. The strong electric filter module 410 is mainly used to filter high-frequency noise and electromagnetic interference (EMI) in the power grid to protect subsequent circuits from interference. It can include components such as X capacitors, Y capacitors, and common-mode inductors. The third area 400 is an area on the main control board 100 for placing the strong electric filter module 410. This area is adjacent to the first area 110 to facilitate connection between the strong electric filter module 410 and the PFC inductor module 111. The first area 110 is used to place the PFC inductor module 111 and other related components, and can be close to the long side edge of the main control board 100.

[0054] In some embodiments, the third area 400 and the first area 110 are arranged along the short side of the main control board 100 and close to the short edge of the main control board 100. The third area 400 is used to house the strong current filter module 410. This area is adjacent to the first area 110, facilitating the connection between the strong current filter module 410 and the PFC inductor module 111. The first area 110 is used to house the PFC inductor module 111 and other related components and is adjacent to the short edge of the main control board 100. By arranging the third area 400 and the first area 110 along the short side of the main control board 100 and close to the short edge of the main control board 100, the input and output wiring from the side of the power device module 220 can be simplified, avoiding the complexity caused by the need to bypass multiple modules in traditional layouts.

[0055] In some embodiments, as Figure 5 As shown, the first area 110 and the heat dissipation area 200 are arranged along the long side of the main control board 100 and close to the long side edge of the main control board 100, and the third area 400 and the first area 110 are arranged along the short side of the main control board 100 and close to the short side edge of the main control board 100; It should be noted that, with reference to Figure 5 , Figure 5 The position layout of the medium and strong electric filter module 410, the PFC inductor module 111, the rectifier PFC module 210 and the power device module 220 is in a right-angled L shape, which can effectively increase the distance between the PFC inductor and the common-mode inductor in the strong electric filter module 410. It can be understood that in the traditional layout, if the distance between the PFC inductor and the common-mode inductor is too close, electromagnetic coupling will easily occur, thereby affecting the effect of the EMI filtering circuit. The embodiment of the present invention increases the distance between the PFC inductor and the common-mode inductor in the strong electric filter module 410 by adjusting the layout of the PFC inductor, the rectifier PFC module 210 and the power device module 220, thereby avoiding close coupling between the PFC inductor and the common-mode inductor, thereby improving the EMI filtering effect.

[0056] refer to Figure 6 , Figure 6 This is a physical schematic diagram of a main control board 100 provided by an embodiment of the present utility model; in some embodiments, the PFC inductor module 111 includes a three-phase controller 510, and the three-phase controller 510 can use a three-phase magnetic integrated PFC inductor. After the three-phase power is input from the lower left part of the electronic control, it passes upward through the EMI filter circuit and is connected to the three-phase magnetic integrated PFC inductor. After exiting the PFC inductor, it is connected to the rectifier PFC module 210, and is connected to the bus capacitor module 310 through the rectifier PFC module 210.

[0057] In some embodiments, the power input can be alternating current from an external power source. The input alternating current is first filtered by a three-phase controller and reaches the PFC inductor module 111. The three-phase controller can simultaneously process the current of three phases by connecting and integrating three independent PFC inductors. It is responsible for coordinating and controlling the current of the three phases to ensure that the power factor in the power conversion process is optimized and to improve space utilization and overall efficiency. After being processed by the PFC inductor, the current enters the rectifier PFC module 210. The rectifier PFC module 210 is used to convert the alternating current into direct current and perform power factor correction. Furthermore, the direct current that has been rectified and PFC processed is connected to the bus capacitor module 310 through the rectifier PFC module 210. The bus capacitor module 310 is used to smooth the DC voltage, reduce ripple, and provide stable power supply for downstream loads.

[0058] It is understandable that by sequentially connecting the three-phase controller, the PFC inductor, the rectifier PFC module 210 and the bus capacitor module 310 , electromagnetic interference can be effectively reduced and the power conversion efficiency and stability can be improved.

[0059] In a second aspect, an embodiment of the present invention provides a controller comprising a main control board according to any embodiment of the first aspect. Since the controller includes the main control board, the main control board enables the PFC inductor module, the PFC rectifier module, and the power device module to be arranged sequentially along the same direction. Thus, when designing the circuitry of the main control board in the controller, the mounting areas of the PFC inductor module and the PFC rectifier module can be prevented from overlapping the wiring area on the side of the power device module. This eliminates the need for the main control board in the controller to route input and output wiring around the power device module without bypassing the PFC inductor module and the PFC rectifier module. This effectively simplifies the wiring path, reduces unnecessary bends and tangles in the main control board wiring, and thereby reduces the wiring complexity of the main control board and, consequently, the controller. Furthermore, by reducing unnecessary bends and tangles in the wiring, the materials and labor required for wiring the main control board in the controller can be reduced, thereby effectively reducing equipment costs.

[0060] In a third aspect, an embodiment of the present invention provides an outdoor unit comprising a main control board according to any embodiment of the first aspect, or a controller according to any embodiment of the second aspect. Since the outdoor unit includes the main control board or the controller, and the controller includes the main control board, the main control board enables the PFC inductor module, the PFC rectifier module, and the power device module to be arranged sequentially along the same direction. Thus, when designing the wiring of the outdoor unit's main control board, the installation areas of the PFC inductor module and the PFC rectifier module can be prevented from overlapping the wiring area on the side of the power device module. This eliminates the need for the main control board to route input and output wiring on the side of the power device module without bypassing the PFC inductor module and the PFC rectifier module. This effectively simplifies the wiring path, reduces unnecessary bends and tangles in the main control board wiring, and reduces the wiring complexity of the main control board, thereby reducing the wiring complexity of the outdoor unit. Furthermore, by reducing unnecessary bends and tangles in the wiring, the materials and labor required for wiring the outdoor unit's main control board can be reduced, thereby effectively reducing equipment costs.

[0061] In a fourth aspect, an embodiment of the present invention provides an air conditioner, comprising a main control board according to any embodiment of the first aspect, or a controller according to any embodiment of the second aspect, or an outdoor unit according to any embodiment of the third aspect; wherein, because the air conditioner includes the main control board, the controller, or the outdoor unit, the outdoor unit includes the main control board or the controller, and the controller includes the main control board, the main control board enables the PFC inductor module, the rectifier PFC module, and the power device module to be arranged sequentially along the same direction. Thus, when designing the wiring of the main control board in the air conditioner, it is possible to prevent the installation area of ​​the PFC inductor module and the rectifier PFC module from overlapping the wiring area on the side of the power device module. Thus, when routing input and output wiring on the side of the power device module, the main control board in the air conditioner does not need to bypass the PFC inductor module and the rectifier PFC module, thereby effectively simplifying the wiring path and reducing unnecessary bending and winding of the main control board wiring, thereby reducing the wiring complexity of the main control board and, consequently, the wiring complexity of the air conditioner. Moreover, since unnecessary bends and entanglements on the lines are reduced, the materials and labor required for wiring the main control board in the air conditioner can be reduced, thereby effectively reducing equipment costs.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A main control board of an air conditioning system, characterized in that: The air conditioning system includes a PFC inductor module, a rectifier PFC module and a power device module. The main control board is divided into a first area and a heat dissipation area. The first area and the heat dissipation area are arranged in sequence along the same direction. The PFC inductor module is arranged in the first area; The rectifier PFC module and the power device module are arranged in the heat dissipation area; in: The rectifier PFC module is arranged in the heat dissipation area near the PFC inductor module and is connected to the PFC inductor module; The power device module is arranged in the heat dissipation area at a position away from the PFC inductor module and is connected to the rectifier PFC module.

2. The main control board according to claim 1, characterized in that: The air conditioning system further includes a busbar capacitor module, and the main control board is further divided into a second area, and the second area is adjacent to the heat dissipation area; The busbar capacitor module is arranged in the second area and connected to the rectifier PFC module and the power device module.

3. The main control board according to claim 2, characterized in that: The busbar capacitor module includes a first busbar capacitor submodule and a second busbar capacitor submodule, the power device module includes a compressor IPM module and a fan IPM module, and the rectifier PFC module, the first busbar capacitor submodule, the compressor IPM module, the second busbar capacitor submodule and the fan IPM module are connected in sequence; The second area includes a first sub-area and a second sub-area. The first busbar capacitor sub-module is arranged in the first sub-area, and the second busbar capacitor sub-module is arranged in the second sub-area.

4. The main control board according to claim 3, characterized in that: The first sub-area is close to the location of the compressor IPM module in the heat dissipation area, and the second sub-area is close to the location of the fan IPM module in the heat dissipation area.

5. The main control board according to claim 3, characterized in that: The first sub-region and the second sub-region are located on the same side of the heat dissipation region.

6. The main control board according to claim 3, characterized in that: The first sub-region and the second sub-region are located on different sides of the heat dissipation region.

7. The main control board according to claim 1, characterized in that: The first area and the heat dissipation area are arranged along the long side of the main control board and close to the long side edge of the main control board.

8. The main control board according to claim 1 or 7, characterized in that: The air conditioning system further includes a strong electric filter module, and the main control board is further divided into a third area, and the third area is adjacent to the first area; The strong electric filter module is arranged in the third area and connected to the PFC inductor module.

9. The main control board according to claim 8, characterized in that: The third area and the first area are arranged along the short side of the main control board and close to the short side edge of the main control board.

10. A controller, characterized in that: Comprising the main control board according to any one of claims 1 to 9.

11. An outdoor unit, characterized in that: The main control board comprises any one of claims 1 to 9, or the controller comprises the controller according to claim 10.

12. An air conditioner, characterized in that: The invention comprises the main control board according to any one of claims 1 to 9, or the controller according to claim 10, or the outdoor unit according to claim 11.

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