An electric control module, an indoor unit and an air conditioner

Abstract

The application provides an electric control module, an indoor unit and an air conditioner. The electric control module comprises an electric control box, a strong current circuit board and a weak current circuit board. The electric control box is formed with a first mounting area and a second mounting area which are not communicated with each other. The strong current circuit board is arranged in the first mounting area. The weak current circuit board is arranged in the second mounting area and is electrically connected with the strong current circuit board. The electric control box is of an integrated structure. The electric control module provided by the application integrates the strong current circuit board and the weak current circuit board in one part, and does not need to arrange mounting structures for the strong current circuit board and the weak current circuit board respectively. The structure is simple, the occupied space is reduced, the strong current circuit board and the weak current circuit board are simultaneously arranged in the indoor unit, the influence of the outdoor environment and temperature change is reduced, and the working safety is higher. The connection distance between the strong current circuit board and the weak current circuit board is short. The strong current circuit board and the weak current circuit board are arranged in the first mounting area and the second mounting area respectively, the heat superposition of the two is reduced, and the probability of mutual interference of the two is reduced.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an electronic control module, an indoor unit, and an air conditioner. Background Technology

[0002] The air conditioner communicates with the display module via a low-voltage circuit board to receive control signals from the display module. The high-voltage circuit board is electrically connected to the low-voltage circuit board, and the control signals from the display module are transmitted to the high-voltage circuit board through the low-voltage circuit board. The high-voltage circuit board then controls the indoor and outdoor units. In related technologies, the high-voltage and low-voltage circuit boards are located in different areas and fixed to different components; for example, the high-voltage circuit board is located in the outdoor unit, and the low-voltage circuit board is located outside the air conditioner or in the indoor unit. This results in complex wiring structures and increased space occupation. Utility Model Content

[0003] In view of this, the embodiments of this application aim to provide an electrical control module, an indoor unit, and an air conditioner that integrates the low-voltage circuit board and the high-voltage circuit board into a single electrical control box, which facilitates wiring and ensures high layout reliability.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows: This application provides an electronic control module installed in an indoor unit, comprising: An electrical control box, wherein the electrical control box has a first installation area and a second installation area that are not interconnected; A high-voltage circuit board is installed in the first mounting area; A low-voltage circuit board is used for communication connection with the display module of the air conditioner. The low-voltage circuit board is disposed in the second mounting area and is electrically connected to the high-voltage circuit board. The electrical control box is an integrated structure.

[0005] In some implementations, the high-voltage circuit board is the main control board; and / or, the low-voltage circuit board is a DIP switch board.

[0006] In some implementations, both the high-voltage circuit board and the low-voltage circuit board are parallel to the height direction of the indoor unit; and / or, the high-voltage circuit board is perpendicular to the low-voltage circuit board.

[0007] In some embodiments, the high-voltage circuit board includes a board and electronic components disposed on one side of the board along a first direction; In the orthographic projection of the plane perpendicular to the second direction, the orthographic projection of the electronic device and the orthographic projection of the low-voltage circuit board have an overlapping area; and / or, the orthographic projection of the board and the orthographic projection of the low-voltage circuit board have an overlapping area, wherein the first direction, the second direction, and the height direction of the indoor unit are mutually perpendicular.

[0008] In some implementations, the electrical control box includes a first plate and a second plate, one end of the second plate is connected to the first plate, and the other end extends in a first direction. The end of the second plate facing the first plate in a second direction and together with the first plate enclose the first mounting area; the end of the second plate away from the first plate in a second direction defines the second mounting area. Among them, the first direction, the second direction, and the height direction of the indoor unit are perpendicular to each other.

[0009] In some embodiments, in the height direction of the indoor unit, the top edge of the second plate is lower than the top edge of the first plate; and / or, the bottom edge of the second plate is higher than the bottom edge of the first plate.

[0010] In some implementations, the electronic control module includes a heat sink disposed in the first mounting area.

[0011] In some embodiments, the high-voltage circuit board includes a board and electronic components disposed on one side of the board along a first direction, and the heat sink is integrated on the board and located on the bottom side of the electronic components; And / or, in the height direction of the indoor unit, the top edge of the radiator does not extend beyond the bottom edge of the low-voltage circuit board, wherein the first direction is perpendicular to the height direction of the indoor unit.

[0012] In some implementations, the electrical control module includes a mounting plate, the electrical control box is connected to the mounting plate, and the electrical control module is mounted on the indoor unit via the mounting plate; The mounting plate includes an interconnected vertical plate and a horizontal plate. The horizontal plate is connected to the bottom of one side of the vertical plate along a first direction. The electrical control box abuts against the vertical plate on the side of the vertical plate opposite to the high-voltage circuit board along the first direction.

[0013] In some implementations, the electrical control module includes a transformer, which is disposed on the bottom side of the low-voltage circuit board and electrically connected to the low-voltage circuit board; The bottom of the electrical control box is supported on the horizontal plate; the transformer is mounted on the horizontal plate.

[0014] In some implementations, the electronic control module includes a power cord, one end of which is connected to the high-voltage circuit board, and the other end is used to connect to an external power source. The upright plate is provided with a wire fixing port, one end of the power cord is electrically connected to the high-voltage circuit board, and the other end passes through the wire fixing port; and / or, the horizontal plate is provided with a clearance opening, through which the power cord passes out of the electronic control module.

[0015] In some implementations, the electrical control box is provided with a wire passage groove on the side away from the low-voltage circuit board along the second direction. The wire passage groove is used for the wire harness to pass through the electrical control module to the outdoor unit, wherein the second direction is perpendicular to the height direction of the indoor unit.

[0016] This application provides an indoor unit, including an indoor air duct, an indoor heat exchanger, and an electronic control module as described in any embodiment of this application. The indoor heat exchanger is disposed in the indoor air duct, and the electronic control module is disposed on one side of the indoor heat exchanger along a first direction. The radiator of the electronic control module is connected to the windward side of the indoor heat exchanger or to the leeward side of the indoor heat exchanger.

[0017] This application provides an air conditioner, including: Outdoor unit, including outdoor heat exchanger; Chassis, outer shell, partitions; The indoor unit described in any embodiment of this application, wherein the outdoor heat exchanger is in heat exchange communication with the indoor heat exchanger; the outer shell is disposed above the chassis, the outdoor unit and the indoor unit are disposed within the space defined by the chassis and the outer shell, and the partition separates the indoor unit and the outdoor unit.

[0018] The electrical control module provided in this application integrates the high-voltage and low-voltage circuit boards into a single component via an electrical control box. On one hand, this eliminates the need for separate mounting structures for the high-voltage and low-voltage circuit boards, simplifying the structure, reducing space occupation, and increasing layout compactness. With both circuit boards installed simultaneously within the indoor unit, it reduces the impact of outdoor environment and temperature changes, resulting in higher operational safety. On the other hand, the connection between the high-voltage and low-voltage circuit boards is simpler and more reliable, with a shorter connection distance that does not extend beyond the electrical control module. Furthermore, the high-voltage and low-voltage circuit boards are respectively located in the first and second mounting areas, reducing heat accumulation and the likelihood of mutual interference, thus enhancing the integration reliability and safety of the electrical control module. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an electronic control module according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of an electrical control box according to an embodiment of this application; Figure 3 This is an integrated schematic diagram of a high-voltage circuit board and a heat sink according to an embodiment of this application; Figure 4 This is a partial structural diagram of an air conditioner according to an embodiment of this application, showing that the electronic control module has not yet rotated to its position. Figure 5This is a partial structural diagram of an air conditioner according to an embodiment of this application, wherein the low-voltage circuit board is omitted, the radiator and the leeward side of the indoor heat exchanger are connected, and the dashed arrows indicate the airflow direction of the heat dissipation duct. Figure 6 This is a partial structural diagram of an air conditioner according to another embodiment of this application, wherein the low-voltage circuit board is omitted, the radiator and the indoor heat exchanger are connected on the windward side, and the dashed arrows indicate the airflow direction of the heat dissipation duct. Figure 7 This is a schematic diagram of another part of the structure of an air conditioner according to an embodiment of this application; Figure 8 This is a schematic diagram of another part of the structure of an air conditioner according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures 100-Air conditioner; 10-Indoor unit; 10a-Indoor air duct; 11-Electrical control module; 110-Electrical control box; 110a-First installation area; 110b-Second installation area; 110c-Wire trough; 1101-First board; 1102-Second board; 111-High-voltage circuit board; 1111-Board; 1112-Electronic components; 112-Low-voltage circuit board; 113-Radiator; 114-Transformer; 115-Mounting plate; 1151-Vertical plate; 1151a-Wire fixing port; 1152-Horizontal plate; 1152a-Avoidance opening; 116-Power cord; 12-Indoor heat exchanger; 12a-Windward side; 12b-Leaning side; 13-Heat dissipation duct component; 20-Outdoor unit; 21-Outdoor heat exchanger; 30-Chassis; 40-Outer shell; 50-Baffle. Detailed Implementation

[0021] In the description of the embodiments of this application, it should be noted that the terms "height direction", "up", "down", "top", "bottom", "left", "right", "front", "back", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0022] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "support" should be interpreted broadly. For example, they can refer to fixed supports, detachable supports, or integral supports; they can refer to mechanical supports or electrical supports; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Please see Figures 1 to 8 This application provides an electronic control module 11.

[0024] This application describes the electronic control module 11 installed in the indoor unit 10 as an example. Installing the electronic control module 11 indoors effectively protects it, reducing its exposure to outdoor rain, snow, dust, etc. Furthermore, the indoor temperature is more stable and milder than the outdoor temperature, further minimizing the impact of low or high outdoor temperatures on the electronic control module 11. Of course, placing the electronic control module 11 indoors also facilitates maintenance, improving the overall reliability of the air conditioner 100.

[0025] This application provides an indoor unit 10, including an indoor air duct 10a, an indoor heat exchanger 12, and an electrical control module 11 in any embodiment of this application.

[0026] It is understandable that the indoor unit 10 can be a separate air conditioning indoor unit or integrated into a single air conditioning unit; there are no restrictions on this.

[0027] This application provides an air conditioner 100, including an outdoor unit 20 and an indoor unit 10 in any embodiment of this application. The outdoor unit 20 includes an outdoor heat exchanger 21, which is in heat exchange communication with the indoor heat exchanger 12.

[0028] It is understood that the type of air conditioner 100 in this application is not limited. For example, it can be a window air conditioner. A window air conditioner is an integrated air conditioner, that is, the outdoor unit and the indoor unit 10 are integrated into one box, so that the structure is compact and the space occupied is reduced.

[0029] For example, a mounting opening is formed in the wall, a window can be disposed in the mounting opening, and the air conditioner 100 can be installed in the mounting opening. The two sides of the window are the indoor side and the outdoor side, respectively. The indoor unit 10 is located on the indoor side of the window, and the outdoor unit 20 is located on the outdoor side of the window. Of course, the air conditioner 100 can also be installed in other locations that are roughly similar to the window. For example, the air conditioner 100 can be installed on the wall through a housing 40. The housing 40 may include an indoor housing and an outdoor housing. The outdoor housing is disposed outside the outdoor unit 20 and is mounted to the wall, while the indoor housing is disposed outside the indoor unit 10 and exposed to the external environment.

[0030] For example, the air conditioner 100 can be a PTAC (Packaged Terminal Air Conditioner) window unit, that is, the air conditioner 100 has a fresh air function while cooling and heating, thus improving air quality.

[0031] In some embodiments, please refer to Figures 5 to 8 The air conditioner 100 includes a chassis 30, an outer casing 40, and a partition 50. The outer casing 40 covers the chassis 30. The outdoor unit 20 and the indoor unit 10 are disposed within the space defined by the chassis 30 and the outer casing 40. The partition 50 separates the indoor unit 10 and the outdoor unit 20.

[0032] The chassis 30 is positioned at the bottom of the outdoor unit 20 and the indoor unit 10 to support them. The outer casing 40 covers the chassis 30. Thus, the indoor unit 10 and the outdoor unit 20 are located within the space defined by the chassis 30 and the outer casing 40, providing protection for them and ensuring the overall structural stability of the air conditioner 100, which facilitates its installation. The partition 50 separates the indoor unit 10 and the outdoor unit 20; that is, the indoor unit 10 is located on the side of the partition 50 facing inwards, and the outdoor unit 20 is located on the side of the partition 50 facing outwards.

[0033] Understandably, without a partition, the cold air drawn in by the indoor fan may leak directly from the casing to the outdoor side, or the hot air drawn in by the outdoor fan may directly enter the indoor side, causing a decrease in the cooling and heating efficiency of the air conditioner and affecting its performance.

[0034] Therefore, the partition 50 is used to isolate indoor air from outdoor air. The partition 50 can physically block the direct connection between the indoor air duct 10a and the outdoor air duct, so that on the indoor side, indoor air can only be drawn in by the indoor fan, exchanged heat through the indoor heat exchanger 12, and then blown back into the room; outdoor air can only be drawn in by the outdoor fan, exchanged heat through the outdoor heat exchanger 21, and then discharged to the outside. This allows the air conditioner 100 to efficiently complete the heat exchange process of indoor heat absorption and outdoor heat release (cooling) or "outdoor heat absorption and indoor heat release" (heating). Of course, the partition 50 also provides a certain structural support and dust and water protection, reducing the chance of rainwater and dust directly entering the indoor side.

[0035] The partition 50 can be made of sheet metal, which is lightweight and easy to mass-produce, thus ensuring the structural strength of the partition 50.

[0036] The indoor heat exchanger 12 and the outdoor heat exchanger 21 are used as evaporators or condensers. The working principle of the air conditioner 100 is briefly described below.

[0037] In cooling mode, the outdoor heat exchanger 21 acts as a condenser, and the indoor heat exchanger 12 acts as an evaporator. The compressor draws in low-temperature, low-pressure gaseous refrigerant and compresses it into high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant enters the outdoor heat exchanger 21, and the outdoor fan draws in outdoor air. The high-temperature, high-pressure refrigerant exchanges heat with the outdoor air, lowering its temperature and causing it to condense from a gaseous state into a liquid state. At the same time, it releases a large amount of heat to the outdoor air. The high-temperature liquid refrigerant passes through a throttling device and becomes low-temperature, low-pressure liquid refrigerant, which then enters the indoor heat exchanger 12. The indoor fan draws in indoor air, and the low-temperature, low-pressure liquid refrigerant exchanges heat with the indoor air, absorbing heat from the indoor air and evaporating from a liquid state into a gaseous state. Simultaneously, it lowers the indoor air temperature, and the cooled air is blown back into the room, achieving cooling.

[0038] In heating mode, the outdoor heat exchanger 21 is used as an evaporator, and the indoor heat exchanger 12 is used as a condenser. The compressor compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas. The high-temperature, high-pressure gas first enters the room and exchanges heat with the indoor heat exchanger 12. The indoor fan blows through the indoor heat exchanger 12, and the refrigerant releases heat to the indoor air and condenses into a liquid, thus raising the temperature of the indoor air. The high-temperature liquid refrigerant passes through a throttling device and becomes a low-temperature liquid. The low-temperature liquid refrigerant enters the outdoor heat exchanger 21, where it absorbs heat from the outdoor air and evaporates into a gas. In this way, heating is achieved.

[0039] Please see Figure 5 and Figure 6 The electronic control module 11 is located on one side of the indoor heat exchanger 12 along the first direction.

[0040] The first direction can be left-right. The electronic control module 11 and the indoor heat exchanger 12 are arranged along the first direction, increasing the compactness of the layout and making the overall size of the air conditioner 100 suitable. For example, the indoor heat exchanger 12 extends along a second direction.

[0041] Indoor air duct 10a is used to introduce heat-exchange airflow into the indoor environment, and indoor heat exchanger 12 is disposed in indoor air duct 10a. Indoor heat exchanger 12 has a windward surface 12a and a leeward surface 12b. The windward surface 12a refers to the surface of indoor heat exchanger 12 that comes into contact with the airflow. The airflow comes into contact with indoor heat exchanger 12 via the windward surface 12a, exchanges heat, and then leaves indoor heat exchanger 12 via the leeward surface 12b. Thus, indoor air duct 10a introduces the heat-exchanged airflow into the indoor environment to improve the indoor temperature.

[0042] In some embodiments, please refer to Figure 5 The radiator 113 of the electronic control module 11 is connected to the leeward side 12b of the indoor heat exchanger 12.

[0043] The heat sink 113 of the electronic control module 11 is connected to the leeward side 12b of the indoor heat exchanger 12. This means that the heat in the electronic control module 11 is conducted through the heat sink 113, which then conducts the heat to the indoor air duct 10a. The heat is then carried away by the airflow after heat exchange with the indoor heat exchanger 12, thus achieving heat dissipation for the electronic control module 11. In this way, the working pressure of the indoor heat exchanger 12 can be reduced, the airflow path can be shortened, and the heat dissipation efficiency can be increased.

[0044] For example, when the indoor fan is rotating, under the action of negative pressure, part of the indoor air is blown toward the windward side 12a of the indoor heat exchanger 12, and another part of the indoor air comes into contact with the radiator 113, takes away the heat generated by the radiator 113 and enters the indoor air duct 10a, which is connected to the leeward side 12b of the indoor heat exchanger 12. The hot air mixes with the airflow after heat exchange, thereby achieving air cooling.

[0045] In some embodiments, please refer to Figure 6 The heat sink 113 of the electronic control module 11 is connected to the air-facing surface 12a of the indoor heat exchanger 12. That is, heat from the electronic control module 11 is conducted through the heat sink 113 to the air-facing surface 12a of the indoor heat exchanger 12. After heat exchange in the indoor heat exchanger 12, the heat is blown out through the indoor air duct 10a, thus carrying away the heat from the heat sink 113 and achieving heat dissipation for the electronic control module 11. In this way, heat is exchanged in the indoor heat exchanger 12 and then blown out through the indoor air duct 10a, resulting in a more suitable airflow temperature within the indoor air duct 10a and reducing the likelihood of hot air condensing within the indoor air duct 10a.

[0046] For example, when the indoor fan is running, under the action of negative pressure, part of the indoor air is blown toward the indoor heat exchanger 12, and another part of the indoor air comes into contact with the radiator 113, taking away the heat generated by the radiator 113 and guiding it to the windward side 12a of the indoor heat exchanger 12. After heat exchange by the indoor heat exchanger 12, it is blown out from the indoor air duct 10a, thereby achieving air cooling.

[0047] For example, please refer to Figure 5 and Figure 6 The indoor unit 10 includes a heat dissipation duct component 13. The electronic control module 11 is connected to the windward side 12a or the leeward side 12b of the indoor heat exchanger 12 through the heat dissipation duct component 13. The heat dissipation duct component 13 forms a heat dissipation duct, which guides hot air to the windward side 12a or the leeward side 12b of the indoor heat exchanger 12, thereby reducing the loss of hot air and increasing the reliability of heat dissipation.

[0048] Please see Figure 1 The electronic control module 11 includes an electronic control box 110, a high-voltage circuit board 111, and a low-voltage circuit board 112.

[0049] The electrical control box 110 has a first mounting area 110a and a second mounting area 110b that are not connected to each other.

[0050] It is understandable that "not interconnected" means that there is a physical barrier between the first installation area 110a and the second installation area 110b. The first installation area 110a and the second installation area 110b are independent of each other. When operating the first installation area 110a, it will not affect the second installation area 110b. At the same time, the heat from the first installation area 110a will not be directly transferred to the second installation area 110b.

[0051] The high-voltage circuit board 111 is located in the first mounting area 110a.

[0052] The low-voltage circuit board 112 is used for communication connection with the display module of the air conditioner 100. The low-voltage circuit board 112 is located in the second mounting area 110b and is electrically connected to the high-voltage circuit board 111.

[0053] The high-voltage circuit board 111 is a control board in the air conditioner 100 that integrates high-voltage control circuits such as mains power input, compressor / fan drive, power conversion, etc. For example, the high-voltage circuit board 111 is the main control board, which is the brain and core control center of the air conditioner 100. The main control board is responsible for receiving instructions, processing information, coordinating and controlling the operation of all components of the air conditioner to realize functions such as cooling, heating, air supply, dehumidification, and automatic mode.

[0054] The display module of the air conditioner 100 can display the current room temperature, set temperature, operating mode, etc. in real time, and can be operated by the user. The display module has high stability and is not affected by obstacles or battery power. That is, the user can send commands to the high-voltage circuit board 111 through the display module or through the remote control (wireless controller).

[0055] For example, the display module can be disposed on the side of the housing 40 facing the interior. The display module may include an electronic display screen, which can be operated by the user by touching the electronic display screen or by pressing buttons. Of course, the display module may also include a wired controller, which is fixedly installed on the wall.

[0056] The low-voltage circuit board 112 is connected to the display module for communication. That is, the high-voltage circuit board 111 receives the control signal from the display module through the low-voltage circuit board 112 and controls the air conditioner 100 through the control signal.

[0057] For example, the display module can be electrically connected to the low-voltage circuit board 112 via a low-voltage signal line.

[0058] Understandably, the low-voltage circuit board 112 provides low-voltage signals to supply low-voltage power to low-voltage devices such as display modules, thereby increasing operational safety. For example, the low-voltage circuit board 112 is a DIP switch.

[0059] The high-voltage circuit board 111 is disposed in the first mounting area 110a, and the low-voltage circuit board 112 is disposed in the second mounting area 110b. The first mounting area 110a and the second mounting area 110b can isolate the high-voltage circuit board 111 and the low-voltage circuit board 112. On the one hand, the heat between the high-voltage circuit board 111 and the low-voltage circuit board 112 will not accumulate, reducing the probability of excessive local temperature rise. On the other hand, it can also isolate the low-voltage circuit board 112 from the high-voltage circuit board 111 to a certain extent, increasing the safety of the installation, and at the same time reducing the probability of low-voltage signals being interfered with by high-voltage signals.

[0060] The electrical control box 110 is a one-piece structure. That is to say, the electrical control box 110 is manufactured as a single piece, and the high-voltage circuit board 111 and the low-voltage circuit board 112 are mounted on the same part through the electrical control box 110. On the one hand, it facilitates the connection between the high-voltage circuit board 111 and the low-voltage circuit board 112. The connection between the high-voltage circuit board 111 and the low-voltage circuit board 112 is confined within the electrical control box 110, resulting in a short wiring distance. At the same time, there is no need to extend the wiring through the electrical control box 110 and the electrical control module 11, reducing the chance of interference and damage to external structures. The wiring is simple and convenient. On the other hand, it also increases the reliability of the layout.

[0061] For example, the electrical control box 110 may be a one-piece injection molded component.

[0062] In related technologies, high-voltage circuit boards and low-voltage circuit boards are located in different areas and fixed on different components. For example, the high-voltage circuit board is located in the outdoor unit, while the low-voltage circuit board is located outside the air conditioner or in the indoor unit. This results in complex wiring structures and increased space occupation.

[0063] The electrical control module 11 provided in this application integrates the high-voltage circuit board 111 and the low-voltage circuit board 112 into a single component via the electrical control box 110. On one hand, this eliminates the need for separate mounting structures for the high-voltage circuit board 111 and the low-voltage circuit board 112, simplifying the structure, reducing space occupation, and increasing layout compactness. Since both the high-voltage circuit board 111 and the low-voltage circuit board 112 are installed simultaneously within the indoor unit 10, the impact of outdoor environment and temperature changes is reduced, resulting in higher operational safety. On the other hand, the connection between the high-voltage circuit board 111 and the low-voltage circuit board 112 is simpler and more reliable, with a shorter connection distance that does not extend beyond the electrical control module 11. Furthermore, the high-voltage circuit board 111 and the low-voltage circuit board 112 are respectively located in the first mounting area 110a and the second mounting area 110b, reducing the superposition of heat between them and minimizing the probability of mutual interference. This results in high integration reliability and safety for the electrical control module 11.

[0064] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 5 Both the high-voltage circuit board 111 and the low-voltage circuit board 112 are parallel to the height direction of the indoor unit 10. That is, both the high-voltage circuit board 111 and the low-voltage circuit board 112 extend approximately along the height direction, and the plane containing the high-voltage circuit board 111 and the low-voltage circuit board 112 is parallel to the height direction. This facilitates full utilization of the space along the height direction of the indoor unit 10 to arrange the high-voltage circuit board 111 and the low-voltage circuit board 112, reduces the horizontal dimensions occupied by the high-voltage circuit board 111 and the low-voltage circuit board 112, and increases the overall layout compactness.

[0065] It should be noted that the parallelism here allows for slight deviations in the height direction between the high-voltage circuit board 111 and the low-voltage circuit board 112, for example, less than 5°.

[0066] It is understandable that both the high-voltage circuit board 111 and the low-voltage circuit board 112 are parallel to the height direction. This can be because the high-voltage circuit board 111 and the low-voltage circuit board 112 are parallel to each other, or there can be an angle between the high-voltage circuit board 111 and the low-voltage circuit board 112.

[0067] In some embodiments, please refer to Figure 1 The high-voltage circuit board 111 and the low-voltage circuit board 112 are perpendicular. That is, the planes on which the high-voltage circuit board 111 and the low-voltage circuit board 112 are located are perpendicular to each other. This reduces the superposition of the dimensions of the high-voltage circuit board 111 and the low-voltage circuit board 112 in the same direction, and reduces the probability of the high-voltage circuit board 111 and the low-voltage circuit board 112 affecting wiring or maintenance due to their stacked arrangement in the same direction. It also reduces the probability of one of the high-voltage circuit board 111 and the low-voltage circuit board 112 obstructing the other, so that when maintenance is required, the high-voltage circuit board 111 and the low-voltage circuit board 112 can be exposed to the user's view with almost no obstruction, thus increasing the reliability of the layout.

[0068] For example, please refer to Figure 1 The high-voltage circuit board 111 is oriented in the first direction, and the low-voltage circuit board 112 is oriented in the second direction.

[0069] For example, please refer to Figure 1 In the orthographic projection onto a plane perpendicular to the first direction, the orthographic projections of the high-voltage circuit board 111 and the low-voltage circuit board 112 have no overlapping area. This facilitates the separate maintenance and replacement of the high-voltage circuit board 111 and the low-voltage circuit board 112.

[0070] In some embodiments, please refer to Figure 1The high-voltage circuit board 111 includes a board 1111 and electronic devices 1112 disposed on one side of the board 1111 along a first direction.

[0071] Board 1111 is used to support and connect electronic device 1112. Board 1111 can be a flat plate made of one or more layers of insulating material, through chemical deposition, electroplating, or other methods to form conductive paths to connect electronic device 1112. Electronic device 1112 refers to a physical entity capable of performing basic functions such as electrical signal conversion, amplification, and switching. For example, electronic device 1112 can be a capacitor, resistor, diode, etc.

[0072] In the orthographic projection onto a plane perpendicular to the second direction, the orthographic projection of the electronic device 1112 overlaps with the orthographic projection of the low-voltage circuit board 112. The first direction, the second direction, and the height direction of the indoor unit 10 are all perpendicular to each other.

[0073] In this embodiment, the electronic device 1112 and the low-voltage circuit board 112 have overlapping dimensions in the height direction and the first direction, which facilitates increasing the compactness of the layout and reducing the overall space occupied by the electronic control module 11.

[0074] The second direction can be front and back, with the front facing the indoor side and the back facing the outdoor side.

[0075] In some embodiments, the orthographic projection of board 1111 overlaps with the orthographic projection of low-voltage circuit board 112.

[0076] In this embodiment, the board 1111 and the low-voltage circuit board 112 have overlapping dimensions in the height direction and the first direction, which facilitates increasing the compactness of the layout and reducing the overall space occupied by the electronic control module 11.

[0077] The specific structure of the electrical control box 110 is not limited.

[0078] In some embodiments, please refer to Figure 1 and Figure 2 The electrical control box 110 includes a first plate 1101 and a second plate 1102. One end of the second plate 1102 is connected to the first plate 1101, and the other end extends in a first direction. The end of the second plate 1102 facing the first plate 1101 along a second direction and together with the first plate 1101 enclose a first mounting area 110a. The end of the second plate 1102 away from the first plate 1101 along a second direction defines a second mounting area 110b.

[0079] In this embodiment, the second plate 1102, together with the first plate 1101, encloses a first mounting area 110a for accommodating the high-voltage circuit board 111. The second plate 1102 also defines a second mounting area 110b for accommodating the low-voltage circuit board 112. The second plate 1102 acts as a barrier between the first mounting area 110a and the second mounting area 110b, isolating the high-voltage circuit board 111 and the low-voltage circuit board 112 and reducing the probability of mutual interference. Thus, the electrical control box 110 has a simple structure and facilitates separate maintenance and replacement of the high-voltage circuit board 111 and the low-voltage circuit board 112. The electrical control box 110 is a one-piece structure, meaning that the first plate 1101 and the second plate 1102 are integrally formed.

[0080] In some embodiments, please refer to Figure 1 and Figure 2 In the height direction of the indoor unit 10, the top edge of the second plate 1102 is lower than the top edge of the first plate 1101.

[0081] In this embodiment, there is a height difference between the top edge of the second plate 1102 and the edge of the first plate 1101, and the top edge of the first plate 1101 is higher than the top edge of the second plate 1102. In this way, the high-voltage circuit board 111 and the low-voltage circuit board 112 can achieve unobstructed wiring by utilizing the height difference between the tops of the first plate 1101 and the second plate 1102, thus shortening the wiring distance. Of course, it also makes it easier to arrange the larger high-voltage circuit board 111 on the first plate 1101. The wiring position of the high-voltage circuit board 111 and other structures of the air conditioner 100 can also be located in the top area.

[0082] In some embodiments, please refer to Figure 1 and Figure 2 The bottom edge of the second plate 1102 is higher than the bottom edge of the first plate 1101.

[0083] In this embodiment, there is a height difference between the bottom edge of the second plate 1102 and the bottom edge of the first plate 1101. Thus, the extension dimension of the first plate 1101 along the height direction is higher than that of the second plate 1102, and the bottom end of the second plate 1102 does not exceed the bottom end of the first plate 1101. The size of the second plate 1102 does not need to be large, which facilitates the arrangement of structures such as heat sink 113 in the bottom area of ​​the first plate 1101, reducing the probability of interference with the second plate 1102.

[0084] In some embodiments, please refer to Figure 1 The electronic control module 11 includes a heat sink 113, which is disposed in the first mounting area 110a.

[0085] Specifically, the radiator 113 can use its thermal conductivity to receive the heat generated by the high-voltage circuit board 111 and dissipate the heat to the outside, or transfer the heat to the windward side 12a or the leeward side 12b of the indoor heat exchanger 12, thereby achieving heat dissipation.

[0086] In this embodiment, the heat sink 113 is disposed in the first mounting area 110a, which facilitates shortening the distance between the high-voltage circuit board 111 and the heat sink 113, and facilitates the heat of the high-voltage circuit board 111 to be conducted to the heat sink 113, thereby achieving effective heat dissipation.

[0087] It is understandable that the low-voltage circuit board 112 is a low-voltage circuit board and does not require a special heat sink, as it can rely on natural heat dissipation. However, the high-voltage circuit board 111 integrates high-power components and requires heat dissipation. Therefore, the heat sink 113 is set in the first mounting area 110a, which is convenient to be set close to the high-voltage circuit board 111 to effectively dissipate heat from the high-voltage circuit board 111.

[0088] The structure of the radiator 113 is not limited. For example, the radiator 113 has a finned structure with a large extended area, which facilitates the improvement of heat dissipation efficiency.

[0089] In some embodiments, please refer to Figure 3 The heat sink 113 is integrated on the board 1111 and located on the bottom side of the electronic device 1112.

[0090] In this embodiment, the heat sink 113 is integrated onto the circuit board 1111, meaning the heat sink 113 and the high-voltage circuit board 111 are integrated as one unit. This allows heat generated by the electrical components to be transferred to the heat sink 113 more effectively, increasing heat dissipation efficiency. Simultaneously, the elimination of the need for an additional heat sink 113 reduces assembly steps, increases installation efficiency, and improves the layout reliability of the electronic control module 11. The heat sink 113 is located on the bottom side of the electronic device 1112, reducing the likelihood of interference between the heat sink 113 and the electronic device 1112. The heat sink 113 does not obstruct the electronic device 1112, facilitating separate maintenance of the electronic device 1112 and the heat sink 113.

[0091] Of course, in the embodiment where the heat sink 113 is connected to the indoor air duct 10a through the heat dissipation air duct component 13, the heat sink 113 is located at the bottom of the electronic device 1112, which also facilitates the isolation of the heat dissipation air duct component 13 from the electronic device 1112 and increases the docking stability between the heat dissipation air duct component 13 and the heat sink 113.

[0092] In some embodiments, please refer to Figure 1 In the height direction of the indoor unit 10, the top edge of the heat sink 113 does not extend beyond the bottom edge of the low-voltage circuit board 112. This reduces the probability of interference between the heat sink 113 and the low-voltage circuit board 112, increasing layout reliability.

[0093] In some embodiments, please refer to Figure 1 The electrical control module 11 includes a transformer 114, which is located on the bottom side of the low-voltage circuit board 112 and is electrically connected to the low-voltage circuit board 112.

[0094] Transformer 114 is used for voltage transformation, converting high voltage into a low voltage suitable for use by the low-voltage circuit board 112, so as to ensure the stable operation of the low-voltage circuit board 112. Of course, transformer 114 can also achieve physical isolation between high voltage and low voltage, increasing the operational stability of the electronic control module 11.

[0095] In this embodiment, the transformer 114, the low-voltage circuit board 112, and the high-voltage circuit board 111 are integrated into the electrical control module 11, without the need for additional fixing structures. The wiring between the three can all be confined within the electrical control module 11. The transformer 114 is located on the bottom side of the low-voltage circuit board 112. The low-voltage circuit board 112 can be wired to the high-voltage circuit board 111 on the top side and to the transformer 114 on the bottom side, reducing the probability of interference and increasing the reliability of the layout.

[0096] The location of transformer 114 is not limited.

[0097] In some embodiments, please refer to Figure 1 The electrical control module 11 includes a mounting plate 115, and the electrical control box 110 is connected to the mounting plate 115. The electrical control module 11 is installed in the indoor unit 10 through the mounting plate 115. In other words, the mounting plate 115 serves as a connection structure between the electrical control module 11 and the external structure, enabling the installation of the electrical control module 11 in the indoor unit 10.

[0098] For example, the electronic control module 11 can be detachably installed in the indoor unit 10 via the mounting plate 115. See also... Figure 4 The electronic control module 11 can be rotatably connected to the partition 50 or the housing 40 via the mounting plate 115, thereby allowing the electronic control module 11 to rotate as a whole relative to the partition 50 or the housing 40 for indoor installation. The rotation axis of the electronic control module 11 is parallel to the height direction. When disassembly is required, the entire electronic control module 11 can be lifted upwards for disassembly and maintenance. For example, the mounting plate 115 is rotatably connected to the partition 50.

[0099] The specific structure of mounting plate 115 is not limited.

[0100] Please see Figure 1 The mounting plate 115 includes an upright plate 1151 and a horizontal plate 1152 connected to each other. The horizontal plate 1152 is connected to the bottom of one side of the upright plate 1151 along the first direction. The electrical control box 110 is in contact with the upright plate 1151 along the side away from the high-voltage circuit board 111 along the first direction. The bottom of the electrical control box 110 is supported on the horizontal plate 1152.

[0101] Mounting plate 115 forms a bracket, providing support and protection for electrical control box 110, increasing the stability of the electrical control box 110, high-voltage circuit board 111, and low-voltage circuit board 112, and simultaneously increasing the overall structural strength of electrical control module 11. Exemplarily, upright plate 1151 is connected to housing 40 or partition 50, and horizontal plate 1152 is connected to chassis 30.

[0102] Please see Figure 1 The transformer 114 is mounted on the horizontal plate 1152. This utilizes the space of the horizontal plate 1152 to house the transformer 114, eliminating the need for additional storage space and increasing the compactness of the layout of the various structures in the electrical control module 11.

[0103] In some embodiments, please refer to Figure 1 The electronic control module 11 includes a power cord 116, one end of which is connected to the high-voltage circuit board 111, and the other end is used to connect to an external power source.

[0104] The power cord 116 is a cable that connects the air conditioner 100 to the mains socket and is used to provide the air conditioner 100 with the electrical energy required for the whole unit to work.

[0105] In this embodiment, the power cord 116 and the high-voltage circuit board 111 are integrated into the electronic control module 11. All parts related to electronic control are integrated into a modular design, resulting in a compact layout and a cleaner and more reasonable circuit design.

[0106] In some embodiments, please refer to Figure 1 The upright plate 1151 is provided with a wire fixing port 1151a. One end of the power cord 116 is electrically connected to the high-voltage circuit board 111, and the other end is passed through the wire fixing port 1151a.

[0107] In this embodiment, the design of the fixed cable port 1151a facilitates the fixing of the power cable 116, reduces the shaking of the power cable 116 in the electronic control module 11, increases the electrical connection stability with the high-voltage circuit board 111, and at the same time reduces the probability of the power cable 116 interfering with other structures, making the wiring safer.

[0108] In some embodiments, please refer to Figure 1 A clearance opening 1152a is provided on the horizontal plate 1152, through which the power cord 116 passes out of the electronic control module 11.

[0109] In this embodiment, the power cord 116 is first connected to the high-voltage circuit board 111, and then runs downward through the fixed cable opening 1151a and through the clearance opening 1152a of the horizontal plate 1152 to exit the power control module 11. The clearance opening 1152a facilitates the exit of the power cord 116 and also facilitates the installation of the fireproof plate and the mounting plate 115 in the power control module 11 to provide safety protection for the internal space of the power control box 110 without squeezing the power cord 116.

[0110] In some embodiments, please refer to Figure 1 The electrical control box 110 is provided with a wire channel 110c on the side away from the low-voltage circuit board 112 along the second direction. The wire channel 110c is used to allow the wire harness to pass through the electrical control module 11 to the outdoor unit 20.

[0111] For example, the side of the electrical control box 110 away from the low-voltage circuit board 112 along the second direction is the rear side of the electrical control box 110. In this embodiment, the setting of the wire groove 110c facilitates the overall passage of the wire harness connected to the electrical components of the outdoor unit to cooperate with the outdoor unit 20. In addition, it is also separated from the wiring of the low-voltage circuit board 112 and does not interfere with each other, reducing the probability of wire tangling and signal interference.

[0112] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0113] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An electronic control module, installed in an indoor unit, characterized in that, include: An electrical control box, wherein the electrical control box has a first installation area and a second installation area that are not interconnected; A high-voltage circuit board is installed in the first mounting area; A low-voltage circuit board is used for communication connection with the display module of the air conditioner. The low-voltage circuit board is disposed in the second mounting area and is electrically connected to the high-voltage circuit board. The electrical control box is an integrated structure.

2. The electronic control module according to claim 1, characterized in that, The high-voltage circuit board is the main control board; and / or, the low-voltage circuit board is a DIP switch board.

3. The electronic control module according to claim 1, characterized in that, Both the high-voltage circuit board and the low-voltage circuit board are parallel to the height direction of the indoor unit; and / or, the high-voltage circuit board is perpendicular to the low-voltage circuit board.

4. The electronic control module according to claim 1, characterized in that, The high-voltage circuit board includes a board and electronic components disposed on one side of the board along a first direction. In the orthographic projection of the plane perpendicular to the second direction, the orthographic projection of the electronic device and the orthographic projection of the low-voltage circuit board have an overlapping area; And / or, the orthographic projection of the board and the orthographic projection of the low-voltage circuit board have an overlapping area, wherein the first direction, the second direction, and the height direction of the indoor unit are mutually perpendicular.

5. The electronic control module according to claim 1, characterized in that, The electrical control box includes a first plate and a second plate. One end of the second plate is connected to the first plate, and the other end extends in a first direction. The end of the second plate facing the first plate in a second direction and together with the first plate enclose the first mounting area. The second plate defines the second mounting area at one end opposite to the first plate along the second direction; Among them, the first direction, the second direction, and the height direction of the indoor unit are perpendicular to each other.

6. The electronic control module according to claim 5, characterized in that, In the height direction of the indoor unit, the top edge of the second plate is lower than the top edge of the first plate; and / or, the bottom edge of the second plate is higher than the bottom edge of the first plate.

7. The electronic control module according to claim 1, characterized in that, The electronic control module includes a heat sink, which is disposed in the first mounting area.

8. The electronic control module according to claim 7, characterized in that, The high-voltage circuit board includes a board and electronic components disposed on one side of the board along a first direction. The heat sink is integrated on the board and located on the bottom side of the electronic components. And / or, in the height direction of the indoor unit, the top edge of the radiator does not extend beyond the bottom edge of the low-voltage circuit board, wherein the first direction is perpendicular to the height direction of the indoor unit.

9. The electronic control module according to claim 1, characterized in that, The electrical control module includes a mounting plate, the electrical control box is connected to the mounting plate, and the electrical control module is installed in the indoor unit through the mounting plate; The mounting plate includes an interconnected vertical plate and a horizontal plate. The horizontal plate is connected to the bottom of one side of the vertical plate along a first direction. The electrical control box abuts against the vertical plate on the side of the vertical plate opposite to the high-voltage circuit board along the first direction.

10. The electronic control module according to claim 9, characterized in that, The electrical control module includes a transformer, which is disposed on the bottom side of the low-voltage circuit board and electrically connected to the low-voltage circuit board. The bottom of the electrical control box is supported on the horizontal plate. The transformer is disposed on the horizontal plate.

11. The electronic control module according to claim 9, characterized in that, The electronic control module includes a power cord, one end of which is connected to the high-voltage circuit board, and the other end is used to connect to an external power source. The upright plate is provided with a wire fixing port, one end of the power cord is electrically connected to the high-voltage circuit board, and the other end passes through the wire fixing port; and / or, the horizontal plate is provided with a clearance opening, through which the power cord passes out of the electronic control module.

12. The electronic control module according to claim 1, characterized in that, The electrical control box is provided with a wire passage groove on the side away from the low-voltage circuit board along the second direction. The wire passage groove is used for the wire harness to pass through the electrical control module to the outdoor unit, wherein the second direction is perpendicular to the height direction of the indoor unit.

13. An indoor unit, characterized in that, The device includes an indoor air duct, an indoor heat exchanger, and an electronic control module as described in any one of claims 1-12. The indoor heat exchanger is disposed in the indoor air duct, and the electronic control module is disposed on one side of the indoor heat exchanger along a first direction. The radiator of the electronic control module is connected to the windward side of the indoor heat exchanger or to the leeward side of the indoor heat exchanger.

14. An air conditioner, characterized in that, include: Outdoor unit, including outdoor heat exchanger; Chassis, outer shell, partitions; And the indoor unit as described in claim 13, wherein the outdoor heat exchanger is in heat exchange communication with the indoor heat exchanger; the outer shell is disposed above the chassis, the outdoor unit and the indoor unit are disposed within the space defined by the chassis and the outer shell, and the partition separates the indoor unit and the outdoor unit.

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