Air conditioner and electric control device thereof

Abstract

The present application discloses an air conditioner and an electric control device thereof. The electric control device at least comprises: a mounting housing and a high-voltage control board (101). The mounting housing comprises a first housing (103) used for defining a first mounting cavity. The first housing (103) comprises a bottom wall (1031) serving as a bottom surface of the first mounting cavity, and a first side wall (1032) perpendicularly connected to the bottom wall (1031). The first side wall (1032) is provided with a slot (1035) extending from the outer side to the inner side of the first mounting cavity. The high-voltage control board (101) is fixed and arranged in the first mounting cavity on the basis of the slot (1035). A substrate (1011) of the high-voltage control board (101) comprises a device layout region; the device layout region is at least provided with a transformer module, an electrolytic capacitor, and power devices; and the transformer module, the electrolytic capacitor, and each power device are arranged near the top edge of the high-voltage control board (101).

Description

Air conditioner and its electronic control device

[0001] Cross-reference of related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202510066066.9, filed on January 15, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of air conditioning, and more particularly to an air conditioner and its electronic control device. Background Technology

[0004] In related technologies, in order to achieve the miniaturization design of the entire wall-mounted air conditioner, the size of the air conditioner's electronic control device needs to be small. Usually, the electronic control device is placed in the spare space outside the indoor fan or fresh air module.

[0005] With technological advancements and improved living standards, users are demanding more functionality from wall-mounted air conditioners. To achieve these additional functions, the power output of air conditioners is increasing. Simultaneously, to meet the miniaturization requirements of the electronic control unit, the power density of the control unit needs to be improved. However, increasing the power density of the electronic control unit within its current structure and size presents several technical challenges: difficulty in heat dissipating the power components on the control board, difficulties in component layout, complex assembly, and poor reliability. In other words, the current structure and design of the control board are insufficient to support the multi-functional needs of air conditioners. Summary of the Invention

[0006] In view of this, the present application provides an air conditioner and its electronic control device, aiming to provide a layout scheme for the electronic control board components of the split-board electronic control device to meet the multi-functional requirements of the air conditioner.

[0007] The technical solution of this application embodiment is implemented as follows:

[0008] This application provides an electronic control device for an air conditioner, the electronic control device comprising at least:

[0009] The mounting housing includes a first housing for forming a first mounting cavity, the first housing including a bottom wall serving as the bottom surface of the first mounting cavity and a first side wall perpendicularly connected to the bottom wall, the first side wall having an insertion groove extending from the outside to the inside of the first mounting cavity;

[0010] A high-voltage control board is used to control the indoor fan of the air conditioner and to process the input power of the air conditioner. The high-voltage control board is fixed based on the insertion slot and is located in the first mounting cavity.

[0011] The power control board includes a device layout area on its substrate. At least a transformer module, an electrolytic capacitor, and a power device are arranged on the device layout area. The transformer module, the electrolytic capacitor, and each of the power devices are arranged near the top edge of the power control board.

[0012] In some implementations, at least a plurality of terminals are arranged on the device layout area, the plurality of terminals being arranged near a first side of the power control board, the first side being the side near the outer side of the first mounting cavity.

[0013] In some implementations, the power device includes at least an internal fan control module, which is arranged on a first side close to the high-voltage control board. The distance from the internal fan control module to the top edge of the high-voltage control board is greater than the distance from the transformer module and the electrolytic capacitor to the top edge of the high-voltage control board.

[0014] In some implementations, the terminal block includes a high-voltage terminal block for connecting a high-voltage current-carrying line for supplying power to the high-voltage control board, and the distance from the high-voltage terminal block to the top edge of the high-voltage control board is greater than the distance from the internal fan control module to the top edge of the high-voltage control board.

[0015] In some implementations, a routing exclusion zone is provided on the substrate of the power control board, located outside the device layout area, and the routing exclusion zone is located at the four corners of the substrate.

[0016] In some embodiments, the first housing further includes a fixing mechanism that forms the insertion groove together with the first sidewall;

[0017] After the high-voltage control board is inserted into the insertion slot, the four corners of the base plate of the high-voltage control board come into contact with the fixing mechanism.

[0018] In some embodiments, the first housing includes a second sidewall connected to the bottom wall, the second sidewall being disposed on the side opposite to the first sidewall, and a fixing groove being provided on the second sidewall for fixing a high-voltage current-carrying line for supplying power to the high-voltage control board.

[0019] In some embodiments, the electronic control device further includes:

[0020] The low-voltage control board is used to control the low-voltage load of the air conditioner.

[0021] The mounting housing also includes a second housing for forming a second mounting cavity. The second housing is connected to and staggered with the first housing. The low-voltage control board is disposed in the second mounting cavity. The high-voltage control board is also used to supply power to the low-voltage control board.

[0022] In some implementations, the terminal block includes a low-voltage terminal block for connecting low-voltage current-carrying lines and inter-board communication lines, and the high-voltage control board is connected to the low-voltage control board via the low-voltage current-carrying lines and the inter-board communication lines;

[0023] The distance from the low-voltage terminal block to the top edge of the high-voltage control board is greater than the distance from the internal fan control module to the top edge of the high-voltage control board.

[0024] Secondly, embodiments of this application provide an air conditioner, which includes an indoor fan, a fresh air module, and an electronic control device as described in the first aspect, wherein the electronic control device is disposed between the indoor fan and the fresh air module.

[0025] In some implementations, the first housing is disposed on the top side of the fresh air module, and the bottom wall is disposed facing the fresh air module.

[0026] In some embodiments, the air conditioner further includes a high-voltage current-carrying line for supplying power to the high-voltage control board, and a fixing groove is provided on the first housing, the high-voltage current-carrying line being fixed based on the fixing groove.

[0027] In some embodiments, the high-current-carrying line is connected to the first housing in a direction toward the top side of the first housing, and forms an angle of 45° with the bottom wall.

[0028] The electronic control device provided in this application embodiment includes at least: a mounting housing and a high-voltage control board. The mounting housing includes a first housing for forming a first mounting cavity. The first housing includes a bottom wall serving as the bottom surface of the first mounting cavity and a first side wall perpendicularly connected to the bottom wall. An insertion slot is provided on the first side wall extending from the outside to the inside of the first mounting cavity. The high-voltage control board is used to control the indoor fan of the air conditioner and to process the input power conversion of the air conditioner. The high-voltage control board is fixed based on the insertion slot and disposed in the first mounting cavity. The substrate of the high-voltage control board includes a device layout area. At least a transformer module, an electrolytic capacitor, and power devices are disposed in the device layout area. The transformer module, electrolytic capacitor, and each power device are arranged near the top edge of the high-voltage control board. Thus, the electronic control device of this application adopts a split-board design to reduce the size of each electronic control board, and provides a device layout scheme for the high-voltage control board. In this scheme, power devices and transformer modules with high heat generation are arranged near the top edge of the high-voltage control board for heat dissipation; large-volume transformer modules and electrolytic capacitors are arranged near the top edge of the high-voltage control board so that the bottom area of ​​the substrate can be used for wiring and routing. The device layout of the high-voltage control board is reasonable, and the improved electronic control device is easy to install and can meet the multi-functional needs of air conditioners. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the structure of the electronic control device according to an embodiment of this application;

[0030] Figure 2 is a structural schematic diagram of the air conditioner according to an embodiment of this application;

[0031] Figure 3 is a schematic diagram of the device layout of the power control board in an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 100, Electrical control device; 101, High-voltage control board; 1011, Base plate; 10111, Wiring restricted area; 1012, Transformer module; 1013, Electrolytic capacitor; 1014, Indoor fan control module; 1015, Switch tube; 1016, High-voltage terminal block; 1017, Low-voltage terminal block; 1018, Indoor fan terminal block; 1019, Electric auxiliary heating terminal block; 1020, Protective device; 1021, Outdoor unit terminal block; 102, Low-voltage control board; 103, First housing; 1031, Bottom wall; 1032, First side wall; 1033, Second side wall; 1034, Top wall; 1035, Insertion slot; 1036, Fixing slot; 1037, Fixing mechanism; 104, Second housing; 200. Internal fan; 300. Fresh air module; 400. High-voltage current-carrying line. Detailed Implementation

[0033] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0035] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 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 this application.

[0036] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] This application provides an electronic control device for an air conditioner, as shown in FIG1. ​​The electronic control device includes at least a mounting housing and a high-voltage control board 101. The mounting housing includes a first housing 103 for forming a first mounting cavity. The first housing 103 includes a bottom wall 1031 serving as the bottom surface of the first mounting cavity and a first side wall 1032 perpendicularly connected to the bottom wall 1031. An insertion groove 1035 extending from the outside to the inside of the first mounting cavity is provided on the first side wall 1032. The high-voltage control board 101 is used to control the indoor fan of the air conditioner and to process the input power conversion of the air conditioner. The high-voltage control board 101 is fixed and disposed in the first mounting cavity based on the insertion groove 1035.

[0039] Here, the air conditioner in this embodiment of the application is used to regulate the temperature, humidity, etc. of the environment. Specifically, the air conditioner is a wall-mounted air conditioner.

[0040] Specifically, the electronic control device is installed in the indoor unit of the air conditioner to control its operation. In the embodiments of this application described later, unless specifically indicated that the air conditioner is an outdoor unit, all other instances of "wall-mounted air conditioner" or "air conditioner" refer only to the indoor unit.

[0041] In order to achieve the miniaturization design of the wall-mounted air conditioner, the space available inside the air conditioner for installing the electronic control device is small. In related technologies, the electronic control device is usually placed outside the internal fan or outside the fresh air module.

[0042] However, with technological advancements and improved living standards, users' demands for the functionality of wall-mounted air conditioners have increased. To achieve more functions, the power of the air conditioner needs to be increased, thus requiring an increase in the power density of the electronic control device. However, increasing the power of the electronic control device brings the following technical problems: difficulty in heat dissipation of the power devices on the electronic control board, difficulty in device layout on the electronic control board, complexity in assembly of the electronic control device, and poor reliability. In other words, the current structure of the electronic control device and the design of the electronic control board are insufficient to support the multi-functional needs of the air conditioner.

[0043] Based on this, embodiments of this application provide an electronic control device for an air conditioner that meets multifunctional requirements.

[0044] It should be noted that in this embodiment of the application, the electrical control device adopts a split-board electrical control scheme. Specifically, the high-voltage control board 101 is only used to control the high-voltage loads such as the indoor fan of the air conditioner and to process the input power conversion of the air conditioner, and is not used to control the low-voltage loads of the air conditioner.

[0045] In some embodiments, the devices arranged on the substrate 1011 of the power control board 101 include, but are not limited to: an internal fan control module 1014, a switching power supply module, a filter capacitor, a current loop communication circuit, and multiple terminal blocks; wherein, the switching power supply module includes at least multiple switching transistors 1015 and a transformer module 1012.

[0046] For example, the electrical control device also includes a low-voltage control board 102, which is used to control the low-voltage load of the air conditioner.

[0047] In some embodiments, the devices arranged on the substrate of the low-voltage control board 102 include, but are not limited to: a stepper motor drive circuit, a controller, a fresh air module drive circuit, a temperature sensor circuit, and a sterilization module drive circuit.

[0048] For example, the mounting housing also includes a second housing 104 for forming a second mounting cavity. The second housing 104 is connected to and staggered with the first housing 103. The low-voltage control board 102 is disposed in the second mounting cavity, and the high-voltage control board 101 is also used to supply power to the low-voltage control board 102.

[0049] It is understood that the volume of the first housing 103 is determined based on the size of the high-voltage control board 101, and the volume of the second housing 104 is determined based on the size of the low-voltage control board 102. Since the size of the high-voltage control board 101 or the low-voltage control board 102 is smaller than that of the electrical control board in the related technology, the volume of the first housing 103 or the second housing 104 is smaller than that of the electrical control box in the related technology. The first housing 103 or the second housing 104 requires less complete installation space than the installation space requirements of the electrical control device in the related technology. Furthermore, the first housing 103 and the second housing 104 are staggered. Therefore, the electrical control device of this application embodiment has a small installation space requirement and can be installed in other vacant areas of the wall-mounted air conditioner.

[0050] It should be noted that in related technologies, there is a spare space between the indoor fan and the fresh air module of a wall-mounted air conditioner. Due to the small size of this spare space, it is difficult to install the original electrical control device. Based on the electrical control device of the aforementioned embodiment of this application, this embodiment of the application also provides an air conditioner, as shown in Figure 2. The air conditioner is a wall-mounted air conditioner, including an indoor fan 200, a fresh air module 300 and the aforementioned electrical control device 100, with the electrical control device 100 disposed between the indoor fan 200 and the fresh air module 300.

[0051] For example, the first housing 103 is disposed on the top side of the fresh air module 300, and the bottom wall 1031 is disposed facing the fresh air module 300.

[0052] It is understood that the electronic control device 100 in this application embodiment adopts a split-board design, which does not require modification of the original structure of the indoor fan 200 and the fresh air module 300. The improved electronic control device 100 is easy to set up and improves the power density of the electronic control device 100, so that the air conditioner can meet the user's multi-functional needs.

[0053] Here, based on the structure of the electronic control device in the aforementioned embodiments of this application, this application also provides a device layout scheme for the high-voltage control board 101.

[0054] For example, as shown in FIG3, the substrate 1011 of the power control board 101 includes a device layout area. At least a transformer module 1012, an electrolytic capacitor 1013 and power devices are disposed on the device layout area. The transformer module 1012, the electrolytic capacitor 1013 and each power device are arranged near the top edge of the power control board 101.

[0055] For example, as shown in FIG1, the first housing 103 further includes a fixing mechanism 1037, which together with the first sidewall 1032 forms an insertion groove 1035.

[0056] For example, as shown in FIG3, a trace exclusion zone 10111 is provided on the substrate 1011 of the power control board 101, which is located outside the device layout area. The trace exclusion zone 10111 is located at the four corners of the substrate 1011.

[0057] Here, after the power control board 101 is inserted into the insertion slot 1035, the four corners of the base plate 1011 of the power control board 101 come into contact with the fixing mechanism 1037.

[0058] It is understandable that the substrate 1011 of the power control board 101 is fixed in the insertion slot 1035 based on the fixing mechanism 1037. Since the area on the substrate 1011 that contacts the fixing mechanism 1037 may be corroded, a wiring restricted area 10111 is set in the contact area of ​​the substrate 1011.

[0059] Understandably, after the high-voltage control board 101 is inserted into the insertion slot 1035, only the four corners of the substrate 1011 are in contact with the fixing mechanism 1037, thereby maximizing the area of ​​the device layout region.

[0060] It is understandable that after the high-voltage control board 101 is inserted into the insertion slot 1035, the devices arranged on the high-voltage control board 101 are located in the first mounting cavity.

[0061] Here, the power devices arranged in the device layout area include at least: an internal fan control module 1014 and multiple switching transistors 1015 of a switching power supply module.

[0062] It is understandable that, since the power devices and transformer module 1012 generate a lot of heat during operation, arranging the power module and transformer module 1012 close to the top edge of the power control board 101 is beneficial for heat dissipation.

[0063] It is understandable that large-volume components such as transformer module 1012 and electrolytic capacitor 1013 are arranged near the top edge of the power control board 101, while small-volume components are arranged on the bottom side of the large-volume components. This facilitates wiring and routing in the bottom area of ​​the component layout area, avoiding the problem that the connecting cables to the power control board 101 cannot avoid the large-volume components arranged in the component layout area.

[0064] It is understood that the power control board 101 of this application embodiment is wired on the bottom side of the power device, which avoids the problem that the connecting cable is connected to the power control board 101 from the top of the power device, thereby causing the heat generated by the power device to cause the connecting cable to age faster.

[0065] In some embodiments, the transformer module 1012 and the electrolytic capacitor 1013 are arranged in a straight line in the device layout area. In one application example of this application, the distance between the transformer module 1012 and the electrolytic capacitor 1013 and the top edge of the high-voltage control board 101 is between 5 and 15 mm.

[0066] For example, the power device includes at least an internal fan control module 1014, and the distance from the internal fan control module 1014 to the top edge of the power control board 101 is greater than the distance from the transformer module 1012 and the electrolytic capacitor 1013 to the top edge of the power control board 101.

[0067] Here, the internal fan control module 1014 can be an Intelligent Power Module (IPM). Since the heat generated by the high-voltage control board 101 during operation accumulates near the top edge of the top plate, in this embodiment, the distance from the internal fan control module 1014 to the top edge of the high-voltage control board 101 is greater than the distance from the transformer module 1012 and the electrolytic capacitor 1013 to the top edge of the high-voltage control board 101. This prevents the internal fan control module 1014 from being too close to the top edge of the high-voltage control board 101, which could affect its lifespan due to the heat generated by the high-voltage control board 101.

[0068] In one application example of this application, the distance between the internal fan control module 1014 and the top edge of the power control board 101 is between 10 and 20 mm.

[0069] In some embodiments, the first housing 103 further includes a top wall 1034 opposite to the bottom wall 1031; wherein the top wall 1034 is perforated.

[0070] Understandably, the top wall 1034 is partially perforated to facilitate heat dissipation of the high-voltage control board 101, while also preventing the perforations from being too large, which could cause flames to burst out of the top wall 1034 in the event of a fire in the high-voltage control board 101.

[0071] For example, the small-volume devices arranged on the device layout area of ​​the power control board 101 include at least a plurality of terminals, which are arranged close to a first side of the power control board 101, the first side being the side close to the outer side of the first mounting cavity.

[0072] Here, the outer side of the first mounting cavity is specifically one side of the mounting opening of the first mounting cavity, and the high-voltage control board 101 is inserted into the insertion slot 1035 through the mounting opening of the first mounting cavity.

[0073] It is understandable that multiple terminal blocks are arranged close to the first side of the power control board 101, that is, multiple terminal blocks are close to the mounting opening of the first mounting cavity, so as to facilitate wiring between the power control board 101 and other components of the air conditioner.

[0074] Here, the specific form of the terminal block is not limited in this application embodiment. The terminal block can be a male or female connector, a plug-in terminal block, or a wire post. In this application embodiment, the terminal block is used to refer to the device and structure with wiring function arranged on the substrate 1011.

[0075] For example, the terminal block includes an interior fan terminal block 1018 for connecting an interior fan. The interior fan terminal block 1018 is arranged near the top edge and the first side edge of the power control board 101.

[0076] For example, the internal fan control module 1014 is arranged near the first side of the power control board 101.

[0077] Understandably, the interior fan terminal block 1018 is arranged near the first side panel to facilitate wiring between the power control board 101 and the interior fan; the interior fan terminal block 1018 is arranged near the top panel so that it is close to the interior fan control module 1014, which is beneficial to the stability of the interior fan drive.

[0078] In some embodiments of this application, the switching power supply module and the electrolytic capacitor 1013 are arranged on the second side of the internal fan control module 1014, which is the opposite side of the first side. Specifically, the internal fan terminal block 1018, the internal fan control module 1014, the switching power supply module, and the electrolytic capacitor 1013 are arranged sequentially from the first side to the second side on the top side of the device layout area.

[0079] For example, the first housing 103 includes a second sidewall 1033 connected to the bottom wall 1031. The second sidewall 1033 is disposed on the side opposite to the first sidewall 1032. A fixing groove 1036 is provided on the second sidewall 1033. The fixing groove 1036 is used to fix the high-voltage current-carrying line 400. The high-voltage current-carrying line 400 is used to supply power to the high-voltage control board 101.

[0080] For example, the air conditioner also includes a high-voltage current-carrying line 400 for supplying power to the high-voltage control board 101. The high-voltage current-carrying line 400 is connected to the first housing 103 in a direction toward the top side of the first housing 103 and forms an angle of 45° with the bottom wall 1031.

[0081] For example, the terminal block includes a high-voltage terminal block 1016 for connecting the high-voltage current-carrying line 400, and the distance from the high-voltage terminal block 1016 to the top edge of the high-voltage control board 101 is greater than the distance from the internal fan control module 1014 to the top edge of the high-voltage control board 101.

[0082] Understandably, the high-voltage terminal block 1016 is arranged away from the top edge of the high-voltage control board 101, and the high-voltage current-carrying line 400 is connected to the bottom side of the power device, transformer module 1012 and electrolytic capacitor 1013, thus avoiding interference between the large-volume device arranged near the top edge of the high-voltage control board 101 and the fixing groove 1036 on the second side wall 1033 and the high-voltage current-carrying line 400.

[0083] It is understood that the electrical control device in this embodiment is located between the internal fan and the fresh air module. The bottom area of ​​the device layout area is used to arrange small-volume devices. The high-voltage current-carrying line 400 is connected to the high-voltage control board 101 from the bottom to the top of the electrical control device, making full use of the empty space on the bottom side of the first mounting cavity for wiring the high-voltage current-carrying line 400.

[0084] In some embodiments, the high-voltage terminal block 1016 is arranged close to the switching power supply module.

[0085] It is understandable that the high-voltage terminal block 1016 is located close to the switching power supply module. The input power is supplied to the switching power supply module via the high-voltage current-carrying line 400 and the protection device 1020 arranged on the high-voltage control board 101. The high-voltage control board 101 converts and processes the input power and supplies it to the low-voltage control board 102.

[0086] For example, the terminal block includes a low-voltage terminal block 1017 for connecting low-voltage current-carrying lines and inter-board communication lines. The high-voltage control board 101 is connected to the low-voltage control board 102 via the low-voltage current-carrying lines and inter-board communication lines. The distance from the low-voltage terminal block 1017 to the top edge of the high-voltage control board 101 is greater than the distance from the internal fan control module 1014 to the top edge of the high-voltage control board 101.

[0087] In some embodiments, the low-voltage terminal block 1017 is arranged close to the switching power supply module.

[0088] Here, the high-voltage control board 101 and the low-voltage control board 102 are connected by a multi-core cable. The multi-core cable includes low-voltage current-carrying lines and inter-board communication lines. The switching power supply module on the high-voltage control board 101 converts the input power into a low-voltage signal and then supplies power to the low-voltage control board 102 through the low-voltage current-carrying lines. After being powered on, the low-voltage control board 102 controls the operation of each low-voltage load.

[0089] It is understandable that the power control board 101 and the low-voltage control board 102 transmit power supply signals and communication signals through a multi-core cable. The separate control board can still realize all the functions of the integrated control board in related technologies.

[0090] In some embodiments, the distance from the low-voltage terminal block 1017 to the top edge of the high-voltage control board 101 is less than the distance from the high-voltage terminal block 1016 to the top edge of the high-voltage control board 101.

[0091] Understandably, the low-voltage terminal block 1017 is located on the top side of the high-voltage terminal block 1016 so that the low-voltage current-carrying line and the inter-board communication line can be connected from the top side of the high-voltage current-carrying line 400.

[0092] In some embodiments, the high-voltage control board 101 is also used to control the electric auxiliary heating module of the air conditioner. The terminal block includes an electric auxiliary heating terminal block 1019 for connecting the electric auxiliary heating module. The electric auxiliary heating terminal block 1019 is arranged near the bottom edge of the high-voltage control board 101.

[0093] In this embodiment, the electric auxiliary heating connector 1019 is arranged close to the high-voltage connector 1016.

[0094] Here, the input power flowing through the high-voltage current-carrying line 400 is connected to the high-voltage control board 101 and is also used to supply power to the auxiliary heating terminal block 1019.

[0095] It is understandable that the electric auxiliary heating terminal 1019 is arranged close to the bottom edge of the high-voltage control board 101, so that the electric auxiliary heating connection cable avoids the fixing groove 1036 on the second side wall 1033 and the wiring area of ​​the high-voltage current-carrying line 400.

[0096] In some embodiments, the terminal block includes an outdoor unit terminal block 1021 for connecting the outdoor unit of the air conditioner, with the outdoor unit terminal block 1021 arranged near the bottom plate edge and the first side plate edge of the power control board 101.

[0097] It is understandable that the outdoor unit terminal block 1021 is arranged near the first side panel to facilitate wiring between the power control board 101 and the outdoor unit; the outdoor unit terminal block 1021 is arranged near the bottom plate so that it is close to the power terminal block 1016 to facilitate wiring between the outdoor unit terminal block 1021 and the power terminal block 1016.

[0098] It should be noted that the mounting housing shown in Figures 1, 2 and 3 is only a specific implementation of the electronic control device in the present application. The present application does not specifically limit the shape and structure of the mounting housing of the electronic control device 100. Any form of mounting housing, as long as it can accommodate the high-voltage control board 101 and the low-voltage control board 102, and can be installed on the wall-mounted air conditioner at the installation position shown in Figure 2, is within the protection scope of the present application.

[0099] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0100] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0101] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electronic control device for an air conditioner, the electronic control device comprising at least: The mounting housing includes a first housing for forming a first mounting cavity, the first housing including a bottom wall serving as the bottom surface of the first mounting cavity and a first side wall perpendicularly connected to the bottom wall, the first side wall having an insertion groove extending from the outside to the inside of the first mounting cavity; A high-voltage control board is used to control the indoor fan of the air conditioner and to process the input power of the air conditioner. The high-voltage control board is fixed based on the insertion slot and is located in the first mounting cavity. The power control board includes a device layout area on its substrate. At least a transformer module, an electrolytic capacitor, and a power device are arranged on the device layout area. The transformer module, the electrolytic capacitor, and each of the power devices are arranged near the top edge of the power control board.

2. The electronic control device according to claim 1, wherein, At least a plurality of terminals are also arranged on the device layout area, and the plurality of terminals are arranged on a first side close to the high-voltage control board, the first side being the side close to the outer side of the first mounting cavity.

3. The electronic control device according to claim 2, wherein, The power device includes at least an internal fan control module, which is arranged on the first side close to the high-voltage control board. The distance from the internal fan control module to the top edge of the high-voltage control board is greater than the distance from the transformer module and the electrolytic capacitor to the top edge of the high-voltage control board.

4. The electronic control device according to claim 3, wherein, The terminal block includes a high-voltage terminal block for connecting a high-voltage current-carrying line, which is used to supply power to the high-voltage control board. The distance from the high-voltage terminal block to the top edge of the high-voltage control board is greater than the distance from the internal fan control module to the top edge of the high-voltage control board.

5. The electronic control device according to any one of claims 1 to 4, wherein, The power control board has a routing exclusion zone located outside the device layout area on its substrate, and the routing exclusion zone is located at the four corners of the substrate.

6. The electronic control device according to any one of claims 1 to 5, wherein, The first housing further includes a fixing mechanism, which together with the first side wall forms the insertion groove; After the high-voltage control board is inserted into the insertion slot, the four corners of the base plate of the high-voltage control board come into contact with the fixing mechanism.

7. The electronic control device according to any one of claims 1 to 6, wherein, The first housing includes a second sidewall connected to the bottom wall. The second sidewall is disposed on the side opposite to the first sidewall. A fixing groove is provided on the second sidewall for fixing a high-voltage current-carrying line, which is used to supply power to the high-voltage control board.

8. The electronic control device according to any one of claims 1 to 7, wherein, The first housing includes a top wall opposite the bottom wall; The top wall is perforated.

9. The electronic control device according to any one of claims 1 to 8, wherein, The electronic control device also includes: The low-voltage control board is used to control the low-voltage load of the air conditioner. The mounting housing also includes a second housing for forming a second mounting cavity. The second housing is connected to and staggered with the first housing. The low-voltage control board is disposed in the second mounting cavity. The high-voltage control board is also used to supply power to the low-voltage control board.

10. The electronic control device according to claim 9, wherein, The terminal block on the device layout area includes a low-voltage terminal block for connecting low-voltage current-carrying lines and inter-board communication lines. The high-voltage control board is connected to the low-voltage control board via the low-voltage current-carrying lines and inter-board communication lines. The distance from the low-voltage terminal block to the top edge of the high-voltage control board is greater than the distance from the internal fan control module to the top edge of the high-voltage control board.

11. An air conditioner, the air conditioner comprising an indoor fan, a fresh air module, and an electronic control device as described in any one of claims 1 to 10, wherein, The electrical control device is located between the internal fan and the fresh air module.

12. The air conditioner according to claim 11, wherein, The first housing is disposed on the top side of the fresh air module, and the bottom wall is disposed facing the fresh air module.

13. The air conditioner according to claim 11 or 12, wherein, The air conditioner also includes a high-voltage current-carrying line for supplying power to the high-voltage control board, and a fixing groove is provided on the first housing, the high-voltage current-carrying line being fixed based on the fixing groove.

14. The air conditioner according to claim 13, wherein, The high-voltage current-carrying line is connected to the first housing in a direction toward the top side of the first housing, and the angle between it and the bottom wall is 45°.

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