Electric control box and heating device

Abstract

The application discloses an electric control box and a heating and ventilation device. The electric control box comprises a first box body and a main control module. The first box body is provided with a first cavity. The main control module is arranged in the first cavity. The main control module comprises a main control board and a main control power board. The main control board is provided with at least one interaction module. The main control power board is electrically connected with the main control board. The main control board and the main control power board are stacked along the depth direction of the first cavity, and the main control board is closer to the opening of the first cavity than the main control power board. The electric control box can separate strong current and weak current, avoid the contact between an operator and a strong current line, reduce the risk of electric shock during maintenance and operation, and improve the safety during the operation of the electric control box. Meanwhile, the main control board and the main control power board are arranged in a stacked and spaced manner, the influence of electromagnetic interference generated by the main control power board on the main control board is reduced, and the stability and accuracy of signals are improved.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, and in particular to an electrical control box and HVAC equipment. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) systems are an important component of building environmental control, encompassing multiple systems such as heating, ventilation, and air conditioning. They are widely used in residential, commercial, and industrial buildings. Their main function is to create a comfortable and healthy living and working environment by regulating parameters such as indoor temperature, humidity, and airflow.

[0003] As a key component of HVAC equipment, the electrical control board is used to control the operation of devices such as compressors and fans. To protect the electrical control board, it is usually housed in a box, which is called an electrical control box.

[0004] An electrical control box typically includes a main control module, which requires a high-voltage power supply. However, operating the main control module during maintenance (such as inspections or wiring) may pose a risk of electric shock. Utility Model Content

[0005] This application provides an electrical control box and HVAC equipment, which aim to reduce the risk of electric shock when operating the main control module.

[0006] To achieve the above objectives, a first aspect of this application provides an electronic control box, comprising: The first box body has a first cavity; and The main control module, located in the first cavity, includes: The main control board has at least one interactive module; and The main control power supply board is electrically connected to the main control board; The main control board and the main control power board are stacked along the depth direction of the first cavity, and the main control board is closer to the opening of the first cavity than the main control power board.

[0007] In some embodiments, the main control power board is provided with a rectifier and filter circuit, the main control board covers the rectifier and filter circuit, and the at least one interactive module is located on the side of the main control board away from the rectifier and filter circuit and exposed in the opening of the first cavity.

[0008] In some embodiments, the electrical control box further includes a partition installed between the main power supply board and the main control board, which covers the rectifier and filter circuit.

[0009] In some embodiments, the partition is a metal plate; or, the outer surface of the partition is provided with a conductive coating.

[0010] In some embodiments, the main control power board is connected to the bottom wall of the first cavity, the partition is connected to the bottom wall of the first cavity, and the main control board is connected to the partition.

[0011] In some embodiments, the electrical control box further includes a first fastener, the main control power board is provided with a first connection hole, the bottom wall of the first cavity is provided with a first connection post, the first connection post extends toward the first connection hole and is connected to the main control power board through the first fastener; And / or, the bottom wall of the first cavity is provided with at least one first positioning post, and the main control power board is provided with a first positioning hole for cooperating with the first positioning post.

[0012] In some embodiments, the electrical control box further includes a second fastener, the partition is provided with a second connection hole, the bottom wall of the first cavity is provided with a second connection post, the second connection post extends toward the second connection hole and is connected to the partition through the second fastener, and the main control board is connected to the partition; And / or, the bottom wall of the first cavity is provided with at least one second positioning post, and the partition is provided with a second positioning hole for cooperating with the second positioning post.

[0013] In some embodiments, the electrical control box further includes: A protective cover is disposed in the first cavity and covers the main control board. The protective cover includes a cover body, which has at least one window for exposing the at least one interactive module.

[0014] In some embodiments, the control box further includes a snap fastener connected to one of the protective cover and the partition, the other of the protective cover and the partition having a groove for engaging with the snap fastener.

[0015] In some embodiments, the snap fastener includes a snap arm connected to the protective cover on the side facing the partition, the snap arm having a protrusion on its outer periphery, the snap arm passing through the snap groove, and the protrusion engaging with the wall of the snap groove.

[0016] In some embodiments, the inner wall of the first cavity is provided with at least two receiving platforms, and the edge of the protective cover facing the main control board is provided with a surrounding edge, which abuts against the receiving platform.

[0017] In some embodiments, the receiving platform has a slot on the side facing the protective cover, and the surrounding edge abuts against the slot.

[0018] In some embodiments, the edge of the partition is provided with at least one flange, and at least one of the flanges abuts against the upper surface of the receiving platform or within the slot.

[0019] In some embodiments, the at least one interaction module includes one or more of an inspection module, a storage interface module, and a communication interface module.

[0020] In some embodiments, the interaction module includes an inspection module, the inspection module includes a display screen and buttons, and the window includes a first view for displaying the inspection module.

[0021] In some embodiments, the protective cover further includes a viewing element, which covers the first viewing window for displaying the inspection module. The viewing element includes: A perspective section is disposed within the first viewing window, directly facing the display screen; and A pressing part is connected to the transparent part and is positioned directly opposite the button within the first viewing window, for pressing the button to perform an inspection.

[0022] In some embodiments, the interaction module further includes a storage interface module, and the window further includes a second window for displaying the storage interface module.

[0023] In some embodiments, the first window and the second window are arranged at a distance along one long side of the cover body.

[0024] In some embodiments, the protective cover has a clearance cavity on the side facing the main control module for avoiding electronic components, and the second window is disposed on the side wall of the clearance cavity.

[0025] In some embodiments, the protective cover has a first clearance groove on the side facing away from the main control module, and the second window connects the first clearance groove and the clearance cavity.

[0026] In some embodiments, the interaction module further includes a communication interface module, and the window further includes a third window for displaying the communication interface module.

[0027] In some embodiments, the cover body has a first side and a second side opposite to each other, and a first window and a third window are arranged at intervals in the direction from the first side to the second side, with the first window disposed along the first side and the third window disposed along the second side.

[0028] In some embodiments, the communication interface module includes a first communication interface and a second communication interface, and the third window includes a first sub-window for displaying the first communication interface and a second sub-window for displaying the second communication interface. The first sub-window and the second sub-window are arranged at an angle along the second side of the cover body and are interconnected.

[0029] In some embodiments, the first sub-window has a notch, the notch being oriented from the first side toward the second side.

[0030] In some embodiments, the first communication interface is one or more of the following: an interface for communicating with the outdoor unit of the HVAC equipment, an interface for communicating with the indoor unit of the HVAC equipment, and an interface for communicating with the central controller of the HVAC equipment; and the second communication interface is one or more of the following: a wireless communication interface and a central interface.

[0031] In some embodiments, the control box further includes a first cover, which is rotatably connected to the first box body and can be flipped to open or close the first cavity.

[0032] In some embodiments, the first box body is provided with a pivot, the first box cover is provided with at least two clamping arms, each clamping arm is provided with a clamping groove, the openings of two adjacent clamping grooves face opposite directions, and the pivot passes through each clamping groove.

[0033] In some embodiments, the electronic control box further includes a hovering assembly, the hovering assembly comprising: A limiting member is connected to the side of the protective cover facing the first box cover; and A support member is connected to the first lid and extends toward the protective cover. During the opening of the first lid, the support member abuts against the limiting member to suspend the first lid.

[0034] In some embodiments, the protective cover is provided with a second clearance groove into which the support member can be inserted, and the limiting member is provided on one side of the second clearance groove to abut against the support member so that the first box cover is suspended. And / or, the limiting member is made of an elastic material.

[0035] In some embodiments, the second clearance groove is located at the edge of the cover body; One end of the limiting member is connected to the opening of the second clearance groove, and the other end is provided with a blocking block. The blocking block is used to abut against the support member so that the first box cover is suspended.

[0036] In some embodiments, the electrical control box further includes a first cover, which is connected to the opening of the first cavity; The first box lid has a sealing groove on the side facing the first box body. The sealing groove is arranged around the edge of the first box lid and is provided with a sealing element. The first box body covers the opening of the sealing groove to seal the first cavity.

[0037] In some embodiments, the seal includes a sealing ring or a sealant.

[0038] In some embodiments, the electrical control box further includes a first cover, which is connected to the opening of the first cavity; The first housing includes: The main body of the cold plate is plate-shaped and has heat dissipation channels; and The first enclosure is connected to the main body of the cold plate; The first box cover, the first enclosure, and the cold plate body cooperate to form the first cavity. The first box cover is rotatably connected to the first enclosure and can be flipped to open or close the first cavity.

[0039] In some embodiments, the electrical control box further includes a first cover, which is connected to the opening of the first cavity; The first housing includes: Cold plate body; and The first enclosure panel is an integral structure with the main body of the cold plate; The first box cover, the first enclosure, and the cold plate body cooperate to form the first cavity. The first box cover is rotatably connected to the first enclosure and can be flipped to open or close the first cavity.

[0040] In some embodiments, the first box body further includes a second box cover and a third box cover. The second box cover cooperates with one side of the cold plate body to form a second cavity, and the third box cover cooperates with the other side of the cold plate body to form a third cavity. The cold plate body is provided with a first opening, and the first opening connects the first cavity and the second cavity. The electrical control box also includes a frequency converter module, a power connection structure, and electrical connection wires. The frequency converter module includes a drive board and a filter board. The drive board is located in the second cavity, and the filter board is located in the third cavity. The power connection structure passes through the first opening, and its two ends are respectively connected to the drive board and the filter board. The electrical connection wires extend from the second cavity to the first cavity to electrically connect the drive board and the main control module.

[0041] In some embodiments, the electrical control box further includes a central module, a second box body, and a central communication line. The second box body is independently disposed from the first box body. The central module is disposed in the second box body. One end of the central communication line is electrically connected to the central module, and the other end extends into the first cavity and is electrically connected to the main control module.

[0042] A second aspect of this application provides a heating, ventilation, and air conditioning (HVAC) device, including a housing and an electrical control box as described above, wherein the electrical control box is disposed within the housing.

[0043] In some embodiments, the housing is provided with an access port; the electrical control box is located at the access port, wherein the first cavity is disposed facing the access port.

[0044] In the electrical control box of this application, the main control power board is electrically connected to the main control board. The main control power board is used for high-voltage power access and to provide a stable power supply to the main control board. Considering the safety hazards during maintenance of the main control module, this embodiment arranges the main control board and the main control power board in a stacked manner along the depth direction of the first cavity, with the main control board closer to the opening of the first cavity. In actual operation, the main control power board is connected to high-voltage lines, posing a high risk of electric shock; while the main control board processes low-voltage signals, offering relatively higher safety. By layering the main control board and the main control power board, during maintenance operations, the operator directly faces the interactive module of the main control board and comes into contact with the low-voltage circuitry, effectively avoiding direct contact with high-voltage lines, greatly reducing the risk of electric shock during maintenance operations, and improving the safety of the electrical control box operation. At the same time, the stacked and spaced arrangement of the main control board and the main control power board reduces the impact of electromagnetic interference generated by the main control power board on the main control board, improving signal stability and accuracy. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the exposed access panel of a heating, ventilation, and air conditioning (HVAC) device according to an embodiment of this application. Figure 2 for Figure 1 A structural diagram from another angle of the structure; Figure 3 This is an exploded view of the structure of an electrical control box according to an embodiment of this application (the second box body is omitted). Figure 4This is a schematic diagram of the main control board, partition, and main control power board according to an embodiment of this application; Figure 5 This is a schematic diagram of the main control board according to an embodiment of this application; Figure 6 This is a schematic diagram of the main control power board according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a partition according to an embodiment of this application; Figure 8 This is a partial structural diagram of the main control board, partition, and first housing according to an embodiment of this application; Figure 9 This is a partial structural diagram of the first box body according to an embodiment of this application; Figure 10 This is a schematic diagram of the main control board and protective cover according to an embodiment of this application (perspective elements omitted). Figure 11 This is a schematic diagram of the structure of a protective cover according to an embodiment of this application; Figure 12 This is a structural schematic diagram of the protective cover according to an embodiment of this application from another perspective (perspective elements omitted). Figure 13 This is a schematic diagram of the structure of the protective cover and partition according to an embodiment of this application; Figure 14 for Figure 13 Enlarged view of point A in the middle; Figure 15 This is a schematic diagram of the structure of the first box lid according to an embodiment of this application; Figure 16 This is a schematic diagram of the structure of a protective cover according to another embodiment of this application (perspective elements omitted); Figure 17 This is a schematic diagram of the structure of the first box lid according to another embodiment of this application; Figure 18 This is an exploded structural diagram of a portion of the electrical control box of this application; Figure 19 This is another exploded structural diagram of a portion of the electrical control box in this application; Figure 20 This is a schematic diagram of the structure of the first box body according to an embodiment of this application; Figure 21 This is a schematic diagram of the structure of a power connector and a connector protective shell according to an embodiment of this application.

[0047] Explanation of icon numbers: 10. Electrical control box; 1. First box body; 11. Cold plate main body; 111. Heat dissipation channel; 1101. First opening; 1102. Mounting port; 112. First enclosure; 113. Second enclosure; 114. Third enclosure; 115. Second positioning post; 12. Second box cover; 13. Third box cover; 15. Terminal block protective shell; 1501. Power cord outlet; 16. Rotating shaft; 101. First cavity; 102. Second cavity; 103. Third cavity; 104. Receiving platform; 1041. Slot; 105. First positioning post; 106. 1. Cable tray; 1061. First cable tray; 1062. Second cable tray; 108. First connecting post; 109. Second connecting post; 2. Main control module; 21. Main control board; 211. Main control base plate; 210. Interaction module; 212. Communication interface module; 2121. First communication interface; 2122. Second communication interface; 213. Inspection module; 2131. Display screen; 2132. Buttons; 214. Storage interface module; 22. Main control power board; 221. Rectifier and filter circuit; 2211. Transformer; 2212. Electrical... 2201, First positioning hole; 2202, First connecting hole; 3, Protective cover; 31, Cover body; 311, First side; 312, Second side; 32, Transparent element; 321, Transparent part; 322, Pressing part; 30, Window; 301, First viewing window; 302, Second viewing window; 303, Third viewing window; 3031, First sub-window; 3032, Second sub-window; 3033, Notch; 304, Clearance cavity; 305, First clearance groove; 306, Second clearance groove; 34, Surrounding edge; 35, Spring buckle; 351, Spring arm; 3 52. Protrusion; 5. Variable frequency module; 51. Drive board; 52. Filter board; 501. Power connection structure; 6. Power terminal block; 61. Insulating base; 62. Conductive post; 7. First cover; 71. Clamping arm; 711. Clamping groove; 701. Sealing groove; 8. Suspension assembly; 81. Limiting component; 811. Blocking block; 82. Support component; 9. Partition; 91. Flanged edge; 901. Second connecting hole; 902. Clip groove; 903. Second positioning hole; 20. Outdoor unit; 200. Housing; 200a. Inspection port; 300. Air supply fan.

[0048] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0050] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0051] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0052] 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 this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0053] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0054] Heating, ventilation, and air conditioning (HVAC) systems are used to regulate the indoor environment, including functions such as heating, ventilation, and air conditioning. Their main purpose is to provide users with a comfortable and healthy indoor environment by controlling parameters such as temperature, humidity, and airflow. Common HVAC equipment includes air conditioners, radiators, and ventilation systems. These devices are widely used in residential, commercial buildings, and industrial settings.

[0055] Taking HVAC equipment as an example, an air conditioning system can be a multi-split system for buildings, that is, multiple indoor units are connected in parallel with one or more outdoor units to form a refrigerant circuit so that the refrigerant can circulate. Figure 1 and Figure 2 The diagram shows the outdoor unit 2 of the air conditioning system. The outdoor unit 2 has a casing 200, inside which are housed a compressor, switching valve, outdoor heat exchanger, outdoor expansion valve, and oil separator, etc. These components are connected by refrigerant piping. Additionally, the outdoor unit 2 includes a blower fan 300.

[0056] Furthermore, the outdoor unit 2 also includes an electrical control box 10. The housing 200 is the external structure of the HVAC equipment, protecting internal components, providing a mounting base, and optimizing airflow. The housing 200 can be made of metal or high-strength plastic, possessing good mechanical strength and corrosion resistance. The housing 200 can be rectangular and placed on the roof or ground. The housing 200 isolates internal live components from the outside environment, preventing direct contact by users and reducing the occurrence of safety accidents such as electric shock. The electrical control box 10 is the core control component of the HVAC equipment. Installed inside the housing 200, the electrical control box 10 facilitates maintenance and replacement, and also simplifies the installation and layout of the overall HVAC equipment structure. The electrical control box 10 is responsible for the precise control of the HVAC equipment's operation. It is equipped with various control circuits, using various electronic components and wiring to achieve control functions for the HVAC equipment, including starting, stopping, temperature adjustment, and mode switching.

[0057] The housing 200 provides protection for the electronic components inside the control box 10, preventing dust, moisture, oil, and other external impurities from entering. It also protects the control box 10 from extreme environmental conditions (such as temperature, humidity, and chemical corrosion), ensuring normal operation in various environments and extending the service life of the control box 10. The control box 10 contains high-voltage circuits and live components; housing them within the housing 200 prevents accidental contact by users, reduces the risk of electric shock, and improves safety. Furthermore, the housing 200 also acts as a shield, reducing the impact of external electromagnetic interference on the electronic components inside the control box 10 and ensuring the stability and reliability of the control system.

[0058] like Figure 1 and Figure 2 As shown, in this embodiment, the housing 200 is rectangular, and the electrical control box 10 has a length direction, which is arranged along the height direction (i.e., the vertical direction) of the housing 200. Therefore, the internal structure of the electrical control box 10 has a vertical arrangement. This vertical length arrangement can better meet the overall structural layout requirements of the equipment when the housing 200 has a large height and limited horizontal space, and is also conducive to heat dissipation and maintenance operations.

[0059] It should be noted that the present invention is not limited to the arrangement of the control box 10 along the height direction of the housing 200 in the above embodiments. In other embodiments, the control box 10 may also be arranged along the length direction of the housing 200, or the control box 10 may be arranged along the width direction of the housing 200. Furthermore, the control box 10 may not be a single form extending along the length direction; it may also vary according to the internal space of the housing 200, for example, it may be formed into an approximate "L" shape, "T" shape, etc.

[0060] In some embodiments, an air duct is formed within the housing 200. This air duct guides air to flow along a predetermined path, preventing disordered airflow within the housing 200 and thus improving heat dissipation efficiency. Specifically, as exemplarily shown in the figure, the air supply fan 300 is located at the top of the housing 200, i.e., at the top of the air duct, and blows air upwards. Furthermore, the electrical control box 10 is located within the air duct, thus utilizing the airflow within the air duct to remove the heat generated by the electrical control box 10, ensuring effective heat dissipation for the electrical control box 10.

[0061] Please continue reading. Figure 1 and Figure 2 In some embodiments, the housing 200 is provided with an access port 200a. In one configuration, the housing 200 includes a housing body and an access door rotatably connected to the housing body, allowing maintenance personnel to expose the access port 200a by opening the access door. In another configuration, the housing 200 includes a housing body and a front panel connected to the housing body. The front panel is fixedly connected to the housing body by screws, allowing maintenance personnel to separate the front panel from the housing body by removing the screws to expose the access port 200a. This application does not impose specific limitations on the manner in which the access port 200a is exposed.

[0062] The electrical control box 10 is located at the access port 200a, and its first cavity 101 for installing the main control module 2 is set facing the access port 200a. Maintenance personnel can quickly find the electrical control box 10 without having to extend excessively into the housing 200 to operate, which greatly improves the efficiency of maintenance and repair.

[0063] Please see Figures 3 to 6 In some embodiments, the electrical control box 10 includes a first box body 1 and a main control module 2.

[0064] In this embodiment, the electrical control box 10 uses a first box body 1 as its main frame, and the first box body 1 has a first cavity 101 inside. The first box body 1 can be made of high-strength insulating engineering plastic or metal alloy, such as polycarbonate (PC) or aluminum alloy. The shape of the first cavity 101 can be various, such as regular shapes like rectangles or circles, or irregular shapes like polygons, specifically designed according to the layout and installation requirements of the main control module 2 inside the first box body 1, thereby providing adaptation space for the subsequent installation of the main control module 2. For example, the first cavity 101 in this embodiment is roughly rectangular.

[0065] In this embodiment, the main control module 2 is a key component for the control box 10 to realize its control functions. Specifically, the main control module 2 is located inside the first cavity 101 and includes a main control board 21 and a main control power board 22.

[0066] The main control board 21 is the core carrier for signal processing and command output of the electrical control box 10, and at least one interactive module 210 is mounted on it. Exemplarily, the at least one interactive module 210 includes one or more of an inspection module 213, a storage interface module 214, and a communication interface module 212. The inspection module 213 may include a display screen and buttons, allowing the user to switch inspection items via buttons and view detailed parameters (such as voltage, current, and frequency) on the display screen. The storage interface module 214 may be a USB interface, a Micro SD card interface, etc., for data transmission. The communication interface module 212 may be an Ethernet interface, a wireless interface, a serial port interface, etc., for connecting various low-voltage lines, such as sensor signal lines and device communication lines. The main control board 21 is typically a multilayer printed circuit board (PCB), integrating key electronic components such as a microprocessor, memory chip, and signal processing chip. Exemplarily, the main control board 21 includes a main control substrate 211, on which at least one interactive module 210 is mounted.

[0067] In this embodiment, the main control power board 22 is electrically connected to the main control board 21 and is used for high-voltage power access and to provide a stable power supply to the main control board 21.

[0068] Considering the safety hazards during maintenance of the main control module 2, this embodiment arranges the main control board 21 and the main control power board 22 in a stacked manner along the depth direction of the first cavity 101, with the main control board 21 closer to the opening of the first cavity 101. In actual operation, the main control power board 22 connects to high-voltage lines, posing a higher risk of electric shock; while the main control board 21 processes low-voltage signals, offering relatively higher safety. Through this layered layout, during wiring operations, the operator directly faces the interaction module 210 of the main control board 21, only encountering low-voltage signals, effectively avoiding direct contact with high-voltage lines and improving the safety of the electrical control box 10 during operation.

[0069] Meanwhile, the main control board 21 and the main control power board 22 are stacked and spaced apart, which can reduce the impact of electromagnetic interference generated by the main control power board 22 on the main control board 2131 and improve the stability and accuracy of the signal.

[0070] like Figure 3 As shown, the first lid 7 is connected to the opening of the first cavity 101, and the connection method can be a movable connection, such as a sliding connection or a rotatable connection. In one embodiment, the first lid 7 is rotatably connected to the first cavity 1, and the first cavity 101 is opened or closed by flipping it. For example, the rotatable connection can be achieved by components such as hinges or rotating shafts. The rotatable connection method is simple to operate; simply flipping the first lid 7 opens or closes the first cavity 101.

[0071] When the first cover 7 is closed, the first cover 7 is sealed to the first box body 1, thereby enhancing the protection of the internal main control module 2.

[0072] Specifically, such as Figure 17 As shown, a sealing groove 701 is provided on the side of the first lid 7 facing the first box body 1. The sealing groove 701 is distributed around the edge of the first lid 7, and its shape is adapted to the edge contour of the first lid 7, and can be a closed ring. A sealing element is provided in the sealing groove 701. The first box body 1 covers the opening of the sealing groove 701 to seal the first cavity 101. The depth and width of the sealing groove 701 can ensure that the sealing element is stably installed therein, and at the same time, it can fully exert its sealing function when the first lid 7 is closed. This surrounding layout allows the sealing element to form a sealed protection for the first cavity 101, thereby preventing the entry of external substances.

[0073] The seal can be either a sealing ring or a sealant. Sealing rings are made of elastic materials such as rubber or fluororubber. Sealants, on the other hand, are liquid sealing materials, such as silicone sealant, which, after application, can fill the sealing groove 701.

[0074] The sealing groove 701 corresponds to the open edge of the first cavity 101. When the first cover 7 is closed on the first box 1, the seal is clamped between the sealing groove 701 and the first box 1, thereby improving the protective effect of the electrical control box 10. In dusty industrial environments, it can prevent dust from accumulating on the main control module 2, avoiding faults such as short circuits caused by dust. In humid environments, it can prevent moisture intrusion, prevent electronic components from being damaged by moisture, ensure the stable operation of the electrical control box 10, reduce maintenance frequency and costs, and improve the reliability and safety of the equipment.

[0075] like Figure 6As shown, in some embodiments, the main control power board 22 is provided with a rectifier and filter circuit 221, the main control board 21 covers the rectifier and filter circuit 221, and at least one interactive module 210 is provided on the side of the main control board 21 away from the rectifier and filter circuit 221 and exposed in the opening of the first cavity 101.

[0076] The rectifier-filter circuit 221 is used to convert high-voltage electricity into low-voltage electricity. Exemplarily, the rectifier-filter circuit 221 includes a transformer 2211 and a capacitor 2212. The transformer 2211 is used to reduce the voltage of the input high-voltage electricity. The capacitor 2212 is used to filter the low-voltage electricity output from the transformer 2211, smoothing the voltage waveform and making the output low-voltage electricity more stable.

[0077] The main control board 21 covers the rectifier and filter circuit 221, forming a physical shield for the rectifier and filter circuit 221, preventing the transformer 2211, capacitor 2212, and other components in the rectifier and filter circuit 221 from being directly exposed. By hiding the rectifier and filter circuit 221, the main control board 21 prevents users from accidentally touching the live components in the rectifier and filter circuit 221 when operating or maintaining the control box 10, thus avoiding electric shock and improving the safety of the control box 10. Furthermore, it reduces the corrosion of the components in the rectifier and filter circuit 221 by external dust and moisture, protecting the circuit components and extending the service life of the control box 10. In this embodiment, the interaction module 210 is positioned on the side of the main control board 21 facing away from the rectifier and filter circuit 221, avoiding the mixing of the interaction module 210 and the rectifier and filter circuit 221, thus making the internal layout of the control box 10 more reasonable. Furthermore, the interaction module 210 is exposed at the opening of the first cavity 101, facilitating direct operation by the user without needing to disassemble other components inside the control box 10, improving operational convenience and allowing users to quickly operate the control box 10, thereby increasing work efficiency.

[0078] Furthermore, to enhance security and signal stability, in some embodiments, please refer to... Figure 4 and Figure 7 The electrical control box 10 also includes a partition 7, which is installed between the main control power board 22 and the main control board 21 and covers the rectifier and filter circuit 221.

[0079] The partition 9 can be installed inside the first cavity 101 by welding, screw fixing, or snap-fit ​​connection. The partition 9 can be made of a material with electromagnetic shielding properties, such as a metal plate (copper, aluminum, etc.), or the outer surface of the partition 9 can be coated with a conductive coating to shield the electromagnetic interference generated by the main control power board 22 and improve the signal stability of the main control board 21 circuit. At the same time, the partition 9 further isolates the electronic circuit of the main control power board 22 at the bottom of the first cavity, making it safer for the user to operate the interactive module 210 on the main control board 21, and further improving security.

[0080] In some embodiments, see Figures 6 to 9 As shown, the main control power board 22 is connected to the bottom wall of the first cavity 101, the partition 9 is connected to the bottom wall of the first cavity 101, and the main control board 21 is connected to the partition 9.

[0081] For example, the electrical control box 10 also includes a first fastener for connecting the main control power board 22 and the bottom wall of the first cavity 101. The main control power board 22 is provided with a first connection hole 2202, and the bottom wall of the first cavity 101 is provided with a first connection post 108, which extends toward the first connection hole 2202.

[0082] The first fastener can be a screw, bolt, or other fastener. For example, the first fastener is a screw. The first connecting post 108 has a threaded hole that matches the screw. The screw is passed through the first connecting hole 2202 and screwed into the threaded hole of the first connecting post 108, thereby mounting the main control power board 22 on the bottom wall of the first cavity 101. This connection method ensures that the main control power board 22 remains stable during the operation of the control box 100 and will not shift due to vibration, external impact, or other factors, thus guaranteeing the operational stability of circuit modules such as the rectifier filter circuit 221.

[0083] Exemplarily, the bottom wall of the first cavity 101 is provided with a positioning structure for positioning the main control power board 22. Specifically, at least one first positioning post 105 protrudes from the bottom wall of the first cavity 101. The top of the first positioning post 105 is hemispherical or conical to facilitate insertion into the first positioning hole 2201 of the main control power board 22, thereby positioning the main control power board 22. The distribution of the first positioning posts 105 on the bottom wall corresponds to the first positioning holes 2201 on the main control power board 22. In one configuration, two first positioning posts 105 are provided, connected to one side of the first connecting post 108, and the two first positioning posts 105 are spaced apart along the bottom wall of the first cavity 101. Correspondingly, the main control power board 22 is provided with a first positioning hole 2201 that mates with the first positioning post 105. When the main control power board 22 is installed into the first cavity 101, by aligning the first positioning hole 2201 with the first positioning post 105 and pressing downwards, the first positioning post 105 can be accurately inserted into the first positioning hole 2201, achieving precise positioning of the main control power board 22 within the first cavity 101. This positioning method, using two first positioning posts 105 in cooperation, effectively prevents the main control power board 22 from shifting or rotating during installation, ensuring accurate installation. Simultaneously, the first positioning post 105 also provides support to a certain extent, reducing the pressure of the main control power board 22 on other fixed structures and improving the overall structural stability of the electrical control box 10.

[0084] For example, the electrical control box 100 also includes a second fastener for connecting the partition 9 to the bottom wall of the first cavity 101. The partition 9 is provided with a second connecting hole 901, and the bottom wall of the first cavity 101 is provided with a second connecting post 109, which extends toward the second connecting hole 901. The second fastener can also be a screw, bolt, or other fastener. Taking a screw connection as an example, the screw is passed through the second connecting hole 901 and the second connecting post 109 in sequence, so that the partition 9 is installed on the bottom wall of the first cavity 101.

[0085] Exemplarily, the bottom wall of the first cavity 101 is further provided with a positioning structure for positioning the partition 9. Specifically, at least one second positioning post 115 protrudes from the bottom wall of the first cavity 101. The top end of the second positioning post 115 is hemispherical or conical to facilitate insertion into the second positioning hole 902 of the partition 9, thereby positioning the partition 9. The distribution positions of the second positioning posts 115 on the bottom wall correspond to the second positioning holes 902 of the partition 9. In one configuration, two second positioning posts 115 are provided, connected to one side of the second connecting post 109, and the two second positioning posts 115 are spaced apart along the bottom wall of the first cavity 101. Correspondingly, the partition 9 is provided with a second positioning hole 902 that mates with the second positioning post 115. When the partition 9 is installed into the first cavity 101, by aligning the second positioning hole 902 with the second positioning post 115 and pressing it downwards, the second positioning post 115 can be accurately inserted into the second positioning hole 902, achieving precise positioning of the partition 9 within the first cavity 101. As a component separating different functional areas within the first cavity 101 of the electrical control box 10, the accuracy of the partition 9's installation is crucial. In this embodiment, the cooperation between the second positioning post 115 and the second positioning hole 902 prevents displacement of the partition 9 during use, ensuring isolation between the main control board 21 and the main power supply board 22, reducing electromagnetic interference, and improving the signal accuracy and overall reliability of the electrical control box 10.

[0086] The main control board 21 is connected to the partition 9. For example, the main control board 21 and the partition 9 are provided with corresponding connection holes. The connection between the main control board 21 and the partition 9 is achieved by passing bolts through the two connection holes.

[0087] In this embodiment, the partition 9 is fixed with a second fastener, and then the main control board 21 is fixed to the partition 9. This ensures the stability of the main control board 21 and components such as the interaction module 210 installed on the main control board 21, thereby ensuring that the internal structure of the entire electrical control box 100 is compact and stable. At the same time, it also ensures the shielding effect of the partition 9 against electromagnetic interference, further improving the safety and signal stability of the electrical control box 100.

[0088] To improve the safety and convenience of inspection operations, the electrical control box 10 in this embodiment also includes a protective cover 3.

[0089] Specifically, please refer to Figures 10 to 12 The protective cover 3 includes a cover body 31, which is installed inside the first cavity 101 and covers the main control module 2. The cover body 31 may be made of insulating material, such as plastic or rubber.

[0090] The cover body 31 has at least one window 30. The shape, size, and position of the window 30 are designed according to the type and layout of the interaction module 210 to ensure that at least one interaction module 210 is visible. When a user needs to operate the interaction module 210, they can operate it directly through the window 30, while other electronic components on the main control module 2 are covered by the cover body 31. During the operation of the interaction module 210, the cover body 31 provides protection, preventing operators from accidentally touching other electronic components on the main control module 2, avoiding short circuits, component damage, and other problems caused by accidental contact, thus ensuring the safety of the operators. During maintenance work, the interaction module 210 can be easily observed and operated through the window 30 without disassembling the entire protective cover 3, reducing maintenance workload. At the same time, other electronic components remain under the protection of the cover body 31, avoiding interference and damage from external dust, moisture, etc., improving the safety and ease of operation of the inspection work.

[0091] In some embodiments, such as Figure 9 As shown, the inner wall of the first cavity 101 of the electrical control box 10 is provided with at least two support platforms 104, which protrude outward from the inner wall. Exemplarily, four support platforms 104 are provided, each pair positioned on opposite side walls of the first cavity 101, approximately symmetrically distributed to evenly support the protective cover 3. The support platforms 104 can be rib-shaped, rectangular, or trapezoidal. The protective cover 3 has a surrounding edge 34 on its edge facing the main control board 21. When the protective cover 3 is installed on the first cavity 101, the surrounding edge 34 abuts against the support platform 104, forming a stable support structure. This simplifies the assembly of the protective cover 3 with the first cavity 101; simply align the protective cover 3 with the first cavity 101 and lower it, allowing the surrounding edge 34 to abut against the support platform 104 for initial fixation, effectively improving assembly efficiency. Meanwhile, the supporting role of the receiving platform 104 on the perimeter 34 can prevent the protective cover 3 from shaking or shifting during use, and play a good protective role for the internal main control board 21 and other electronic components.

[0092] Furthermore, in some embodiments, the receiving platform 104 has a slot 1041 on the side facing the protective cover 3. The shape of the slot 1041 matches the shape of the edge 34, specifically a rectangular slot. During installation, the edge 34 of the protective cover 3 abuts against the slot 1041. This matching method of the slot 1041 and the edge 34 provides a better fixing effect compared to a simple abutment method. After the edge 34 is inserted into the slot 1041, it is restricted horizontally by the inner wall of the slot 1041, preventing the protective cover 3 from moving laterally and enhancing the stability of the connection between the protective cover 3 and the first cavity 101.

[0093] like Figure 7 and Figure 9 As shown, the edge of the partition 9 is provided with at least one flange 91, which is used for mounting the partition 9 within the first cavity 101. The flange 91 can abut against the upper surface of the receiving platform 104 or within the slot 1041. When the flange 91 abuts against the upper surface of the receiving platform 104, a surface contact is formed, which can evenly distribute the external force on the partition 9 and prevent the partition 9 from warping due to uneven force distribution. When the flange 91 is inserted into the slot 1041, a clearance fit is formed. This embedded fit not only enhances the positioning accuracy of the partition 9 but also makes the installation more stable.

[0094] In one embodiment, a flange 91 is provided on each of the opposite sides of the edge of the partition 9. One flange 91 abuts against the upper surface of the receiving platform 104, while the other flange 91 is embedded in the slot 1041.

[0095] In one embodiment, the perimeter 34 of the protective cover 3 and the flange 91 of the partition 9 are simultaneously embedded in the same slot 1041. By using a slot 1041 for both components, the two components are fixed, thereby saving space in the first cavity 101 and improving the compactness of the electrical control box 10.

[0096] In some embodiments, such as Figure 13 and Figure 14 As shown, the electrical control box 10 also includes a spring clip 35, which is connected to one of the protective cover 3 and the partition 9. The other of the protective cover 3 and the partition 9 is provided with a groove for engaging with the spring clip 35.

[0097] The spring clip 35 can be made of plastic or stainless steel and has good elasticity. When the spring clip 35 is connected to the protective cover 3, the clip groove is correspondingly set on the partition 9; and when the spring clip 35 is connected to the partition 9, the clip groove is correspondingly set on the protective cover 3.

[0098] The use of spring-loaded clips 35 improves installation efficiency. Compared to traditional screw fixing, it significantly enhances installation efficiency. Furthermore, the engagement of spring-loaded clips 35 with the clip slot provides a buffering effect; when the electrical control box 10 is subjected to external impact, the elastic deformation of spring-loaded clips 35 absorbs some energy, reducing damage to internal components.

[0099] Furthermore, in some embodiments, the spring clip 35 includes a spring arm 351 connected to the side of the protective cover 3 facing the partition 9. The spring arm 351 may be a cantilever beam structure, generally U-shaped, thereby ensuring that the spring arm 351 has sufficient elastic deformation capacity.

[0100] The outer periphery of the spring arm 351 is provided with a protrusion 352, which can be a ridge, a block, etc. The cross-section of the protrusion 352 can be triangular, rectangular, semi-circular, etc. The protrusion 352 can have a certain slope to facilitate insertion and removal from the buckle groove. When the spring arm 351 is inserted into the buckle groove, the protrusion 352 interferes with the wall of the buckle groove, thereby fastening the protective cover 3 onto the partition 9.

[0101] As can be seen, the partition 9 in this embodiment roughly divides the interior of the first cavity 101 into two spaces: the main control power board 22 and the main control board 21, blocking the propagation of electromagnetic radiation from the main control power board 22 area to the main control board 21 area, thereby improving the stability of the working signal of the main control board 21.

[0102] Meanwhile, regarding the installation of the protective cover 3, the partition 9 also provides an installation structure with a snap-fit ​​groove 902 to facilitate the installation of the protective cover 3. As mentioned above, the protective cover 3 can be quickly connected to the partition 9 through the cooperation of the snap-fit ​​groove 902 with the spring snap 35, thereby achieving rapid installation of the protective cover 3.

[0103] In some embodiments, the interaction module 210 includes an inspection module 213, and the window 30 on the cover body 31 includes a first viewing window 301 for displaying the inspection module 213. To enable the display and operation of the inspection module 213, the protective cover 3 is also provided with a transparent element 32. The transparent element 32 covers the first viewing window 301, is used to display the inspection module 213, and is also used to operate the inspection module 213 for inspection under the action of external force.

[0104] In some embodiments, such as Figure 5 As shown, the inspection module 213 includes a display screen 2131 and buttons 2132. The display screen 2131 can be a digital tube, LCD, LED, etc. The viewing element 32 includes a viewing section 321 and a pressing section 322. The viewing section 321 is disposed in the first viewing window 301 facing the display screen 2131 and is used to display information on the display screen 2131. The pressing section 322 is connected to the viewing section 321 and is disposed in the first viewing window 301 facing the buttons 2132, and is used to press the buttons 2132 to perform inspection.

[0105] The viewing section 321 is made of transparent material to clearly display the information on the display screen 2131, facilitating the operator's observation of the equipment's operating status and parameters. The pressing section 322 has a certain degree of flexibility, allowing it to deform when the operator applies external force, thereby pressing the corresponding button 2132 to operate the control box 10.

[0106] The transparent element 32 can be a one-piece flexible transparent structure, such as made of flexible transparent materials such as silicone or polyurethane. Alternatively, the transparent element 32 can be a structure in which only the transparent part 321 is transparent, and the pressing part 322 can be made of materials such as rubber and connected to the transparent part 321 by processes such as bonding or injection molding.

[0107] The design of the transparent element 32 ensures that during the operation of the inspection module 213, other electronic components on the main control module 2 are always protected by the cover body 31, preventing accidental contact by operators and ensuring their safety. Simultaneously, during inspection work, the protective cover 3 does not need to be removed; the inspection module 213 can be easily observed and operated through the transparent element 32, reducing maintenance workload and preventing damage to internal components from external dust and moisture, further improving the safety and ease of operation of the inspection work.

[0108] In some embodiments, the interaction module 210 further includes a storage interface module 214 (such as a USB interface, an SD card interface, etc.), and the window 30 of the cover body 31 further includes a second window 302 for displaying the storage interface module 214. The shape, size, and position of the second window 302 are designed according to the type and size of the storage interface module 214. For example, if the storage interface module 214 is a USB interface, the shape and size of the second window 302 are adapted to the USB interface to facilitate the connection of USB devices. If the storage interface module 214 is an SD card interface, the size of the second window 302 will be slightly larger than the size of the SD card to ensure that the SD card can be inserted and removed smoothly. The second window 302 allows the storage interface module 214 to be directly exposed. When the user needs to connect an external storage device using the storage interface module 214, there is no need to open the protective cover 3; operations such as inserting / removing SD cards and connecting USB flash drives can be performed directly through the second window 302. This avoids the risk of dust entering the control box 10 due to frequent opening of the protective cover 3, thus protecting the main control module 2. Furthermore, it allows users to perform data storage and transmission operations quickly and conveniently, improving the efficiency of data interaction and the overall ease of operation of the control box 10.

[0109] In some embodiments, the first window 301 and the second window 302 are arranged at a distance along one long side of the cover body 31. In this embodiment, the spaced arrangement avoids operational errors caused by the two windows being too close together, such as preventing accidental activation of the button 2132 of the inspection module 213 when inserting or removing external storage devices, thus improving operational accuracy. In addition, this layout also facilitates the rational use of the internal space of the cover body 31, making the installation and wiring of each module more organized, reducing line crossing interference, and improving the compactness of the internal structure of the control box 10.

[0110] In some embodiments, the protective cover 3 is provided with a clearance structure to avoid electronic components on the main control board 21. Specifically, such as Figure 8 As shown, the protective cover 3 has a clearance cavity 304 on the side facing the main control board 21. Its shape is adapted to the layout of electronic components on the main control board 21 so as to reserve sufficient space for electronic components and avoid squeezing and damaging the components when the protective cover 3 is installed.

[0111] In some embodiments, the second window 302 is formed on the side wall of the clearance cavity 304, while a first clearance groove 305 is provided on the side of the protective cover 3 facing away from the main control board 21. The second window 302 connects the first clearance groove 305 and the clearance cavity 304. From a top view, the upper part of the storage interface module 214 is covered by the protective cover 3, making it less likely to be accidentally touched. When it is necessary to connect the storage interface module 214, the operator can insert the memory card or external storage device through the first clearance groove 305 and the second window 302 to connect the storage interface module 214. The operation is convenient and does not affect the protective function of the protective cover 3.

[0112] In some embodiments, the interaction module 210 further includes a communication interface module 212, which is used to connect various low-voltage lines, such as sensor signal lines and device communication lines. Considering the safety hazards when wiring the main control module 2, this embodiment arranges the main control board 21 and the main control power board 22 in a stacked manner along the depth direction of the first cavity 101, with the main control board 21 closer to the first cover 7. In actual operation, the main control power board 22 connects to high-voltage lines, posing a higher risk of electric shock; while the main control board 21 processes low-voltage signals, offering relatively higher safety. Through this layered layout, when performing wiring operations, the operator directly faces the communication interface module 212 of the main control board 21, and only comes into contact with low-voltage signals, effectively avoiding direct contact with high-voltage lines, significantly reducing the risk of electric shock during wiring, and improving the safety of the electrical control box 10 during operation.

[0113] Meanwhile, the main control board 21 and the main control power board 22 are stacked and spaced apart, which can reduce the impact of electromagnetic interference generated by the main control power board 22 on the main control board 21 and improve the stability and accuracy of the signal.

[0114] In some embodiments, the window 30 of the cover body 31 further includes a third window 303 for exposing the communication interface module 212. The shape, size, and position of the third window 303 are designed according to the type and number of communication interface modules 212. For example, if the serial port interface is generally a pin-type or terminal-type interface arranged in an array, the third window 303 will be designed as a corresponding rectangular opening, with a size slightly larger than the interface size, to ensure that the communication cable can be smoothly inserted and removed.

[0115] The third window 303 exposes the communication interface module 212, allowing users to easily connect various communication lines and establish communication connections between the control box 10 and other devices or systems. Simultaneously, when connecting communication lines through the third window 303, other electronic components on the main control module 2 remain protected by the cover body 31, further ensuring the safety of the internal components of the control box 10.

[0116] While ensuring protection for other parts of the main control board 21, operators do not need to disassemble the entire protective cover 3 when wiring; they can complete the connection of the low-voltage circuit simply by operating through the third viewing window 303, making the operation convenient and safe. In one embodiment, the third viewing window 303 is located on the side of the cover body 31 away from the rotating end of the first cover 7. Thus, after opening the first cover 7, the third viewing window 303 has ample operating space due to its distance from the rotating end of the first cover 7, preventing contact with the first cover 7 during wiring operations and facilitating the wiring process. Cables can be directly led out from the bottom edge of the protective cover 3 for easy wiring.

[0117] In some embodiments, such as Figure 11 As shown, the cover body 31 has a first side 311 and a second side 312 opposite to each other. These two sides can be the two longer sides of the cover body 31, and the first side 311 is located above the second side 312. The cover body 31 has a roughly rectangular outline. In the direction from the first side 311 to the second side 312, a first window 301 and a third window 303 are arranged at intervals, with the first window 301 set along the first side 311 and the third window 303 set along the second side 312.

[0118] In this embodiment, the inspection module 213 is typically the frequently used interaction module 210 by the operator. The first window 301 is positioned along the upper first side 311, making the inspection module 213 closer to the operator's usual operating position, facilitating quick inspection and improving work efficiency. Secondly, the communication interface module 212 often requires connecting long cables. The third window 303 is positioned along the lower second side 312, allowing the cable to be directly led out from the bottom edge of the protective cover 3 during wiring, shortening the cable length and simplifying wiring operations. Furthermore, the first window 301 and the third window 303 are spaced apart, avoiding operational interference between the inspection module 213 and the communication interface module 212. For example, accidental activation of the button 2132 on the inspection module 213 is prevented when connecting communication lines, further improving operational accuracy and safety.

[0119] Please see Figure 5 , Figure 10 and Figure 11 In some embodiments, the communication interface module 212 includes a first communication interface 2121 and a second communication interface 2122. The first communication interface 2121 is one or more of the following: an interface for communicating with the outdoor unit of the HVAC system, an interface for communicating with the indoor unit of the HVAC system, and an interface for communicating with the central controller of the HVAC system. The second communication interface 2122 is one or more of the following: a wireless communication interface and a central interface. For example, the second communication interface 2122 is used to connect to the central module (mentioned below). The central module is mainly responsible for the data acquisition, processing, and transmission of electronic devices such as sensors and electronic valves in the outdoor unit of the HVAC system, and transmits the data to the main control module for further processing.

[0120] The window 30 of the cover body 31 also includes a third window 303 for displaying the communication interface module 212. The third window 303 includes a first sub-window 3031 for displaying the first communication interface 2121 and a second sub-window 3032 for displaying the second communication interface 2122. The first sub-window 3031 and the second sub-window 3032 are arranged at an angle along the second side 312 of the cover body 31 and are interconnected.

[0121] The first sub-window 3031 and the second sub-window 3032 are connected, and the first sub-window 3031 and the second sub-window 3032 are arranged at an angle along the second side 312 of the cover body 31, for example, approximately 90°. In this way, the first communication interface 2121 and the second communication interface 2122 are close to each other in physical space, which facilitates the layout and connection of internal lines, reduces line length, and improves the compactness of wiring.

[0122] In some embodiments, the first sub-window 3031 has a notch 3033 extending from the first side 311 toward the second side 312. The notch 3033 is designed to facilitate the connection and installation of external devices. The notch 3033 faces the direction from the first side 311 toward the second side 312, providing additional space for wiring operations and avoiding connection difficulties or excessive wiring bends due to space constraints, thus improving operational convenience.

[0123] like Figure 9 and Figure 15 As shown, in some embodiments, the first lid 7 and the first body 1 are hinged together. Specifically, the first body 1 is provided with a pivot 16, which is installed on the first body 1 near the open edge of the first cavity 101. The pivot 16 can be connected to the first body 1 by means of integral molding, embedded installation, or welding.

[0124] The first lid 7 is provided with at least two clamping arms 71, which extend from the edge of the first lid 7 toward the first box body 1, and the positions of the clamping arms 71 correspond to the rotating shaft 16 on the first box body 1. Each clamping arm 71 is provided with a clamping groove 711, the shape of which is adapted to the outer diameter of the rotating shaft 16, and can be semi-circular or U-shaped, so as to clamp the rotating shaft 16. The openings of two adjacent clamping grooves 711 face opposite directions, so that when the first lid 7 rotates around the rotating shaft 16, adjacent clamping arms 71 can provide support in different directions, ensuring that the opening and closing of the first lid 7 is smooth.

[0125] A pivot 16 passes through each clamping slot 711, forming a hinge structure. Compared with traditional hinge structures, the arrangement of multiple clamping arms 71 and clamping slots 711 in this embodiment increases the contact area and connection points between the first lid 7 and the first box body 1, improving the stability of the structure. At the same time, the slot openings of adjacent clamping slots 711 face opposite directions, making the force on the first lid 7 more uniform during opening and closing, reducing the problem of local stress concentration, and extending the service life of the hinge structure.

[0126] In some embodiments, to further improve operational convenience, such as for inspection operations, wiring operations, and connecting the storage interface module 214, this embodiment provides a hovering component 8. This hovering component 8 allows the first cover 7 to hover at a preset angle during opening, preventing the first cover 7 from accidentally closing during operation, thereby providing the operator with a stable and convenient operating environment.

[0127] Specifically, please refer to Figure 11 , Figure 16 and Figure 17The hovering assembly 8 includes a limiting member 81 and a supporting member 82. The limiting member 81 is connected to the side of the protective cover 3 facing the first cover 7. The limiting member 81 cooperates with the supporting member 82 on the first cover 7 to limit the position of the first cover 7. The limiting member 81 can be connected by welding, bonding, or integral molding, depending on the material properties of the limiting member 81 and the protective cover 3. For example, if both are made of plastic, an integral injection molding connection can be used.

[0128] During the opening of the first lid 7, the support member 82 moves with the rotation of the first lid 7 and eventually comes into contact with the limiting member 82, thereby suspending the first lid 7.

[0129] For example, the limiting member 81 is made of an elastic material, such as elastic plastic, rubber, silicone, etc.

[0130] In some embodiments, the protective cover 3 is provided with a second clearance groove 306 into which the support member 82 can be inserted. The shape and size of the second clearance groove 306 are adapted to the support member 82, and can provide sufficient movement space for the support member 82.

[0131] The second clearance groove 306 is located at the edge of the cover body 31. Positioning it at the edge prevents interference with the module located in the center of the electrical control box.

[0132] The limiting member 81 is provided on one side of the second clearance groove 306. For example, one end of the limiting member 81 is connected to the opening of the second clearance groove 306, and the other end is provided with a blocking block 811, which is used to abut against the support member 82 so that the first box cover 7 is suspended.

[0133] The blocking block 811 is block-shaped and can abut against the end of the support member 82. When the first lid 7 is opened, the support member 82 will press against the limiting member 81. Because the limiting member 81 has a certain degree of elasticity, its free end will swing at a small angle under the action of external force to avoid the movement trajectory of the support member 82. This small-angle swing is based on the elastic deformation capability of the limiting member 81, which can provide space for the movement of the support member 82 without damaging its own structure.

[0134] The support member 82 is connected to the first lid 7 and extends toward the protective cover 3. The connection method between the support member 82 and the first lid 7 can also be selected according to the material properties, such as welding or integral molding. The design of extending toward the protective cover 3 allows the support member 82 to interact with the limiting member 81, thereby realizing the suspension function of the first lid 7.

[0135] During the opening of the first lid 7, the support member 82 moves along with the movement of the first lid 7. When the first lid 7 is opened to a preset angle, the support member 82 no longer presses against the limiting member 81. At this time, the limiting member 81 returns to its original position under its own elastic force, allowing the blocking block to abut against the end of the support member 82, thereby preventing the first lid 7 from closing and allowing the first lid 7 to be stably suspended at the preset angle.

[0136] The preset angle can be designed according to actual operational needs. When performing inspection operations, wiring operations, or connecting the storage interface module 214, operators require a suitable operating space and viewing angle. Fixing the first cover 7 at the preset angle using the hovering component 8 ensures that the first cover 7 will not interfere with operations, improving convenience and efficiency. At the same time, the hovering component 8 also reduces the risk of damage caused by the first cover 7 accidentally closing, enhancing operational safety.

[0137] The design of the hovering component 8 in this embodiment allows operators to operate without manually supporting the first lid 7, enabling them to operate more freely with both hands, thus improving the accuracy and efficiency of the operation.

[0138] In some embodiments, such as Figure 18 , Figure 19 and Figure 20 As shown, the first box body 1 includes a cold plate body 11 and a first enclosure 112.

[0139] In one configuration, the cold plate body 11 can be made of aluminum alloy, with a plate-like structure and internal heat dissipation channels 111. The heat dissipation channels 111 can be straight or curved, used to guide the flow of the heat exchange medium, such as air or liquid, i.e., to remove heat through air cooling or water cooling. The first enclosure plate 112 and the cold plate body 11 can be connected by integral molding, welding, or other methods to form a closed structure, which, together with the first cover 7, constitutes the first cavity 101.

[0140] In this embodiment, the heat dissipation capacity of the entire electrical control box 10 is improved by the joint action of the heat-dissipating adhesive in the cavity 401 of the cold plate body 11 and the main control support frame 4.

[0141] Specifically, the main control support frame 4 acts as a bridge throughout the heat dissipation process. Because the thermal adhesive conducts heat to the main control support frame 4, it becomes an intermediate heat carrier. Simultaneously, the main control support frame 4 is in close contact with the cold plate body 11, allowing heat to be transferred from the main control support frame 4 to the cold plate body 11. The back side of the main control support frame 4 is in contact with the cold plate body 11, which facilitates even heat distribution, prevents localized overheating, and further improves the heat dissipation effect.

[0142] The cold plate body 11 is the core component of the entire heat dissipation system. When heat is transferred from the main control support frame 4 to the cold plate body 11, the cold plate body 11 utilizes its heat dissipation channels 111 to dissipate the heat to the external environment through heat exchange. Through the combined action of the cold plate body 11 and the thermal paste within the cavity 401 of the main control support frame 4, a highly efficient heat dissipation system is formed. The heat generated by the main control power board 22 can be quickly transferred to the external environment, reducing the operating temperature of the main control power board 22, ensuring the stable operation of the electrical control box 10, extending its service life, and improving the reliability and performance of the entire system.

[0143] In another configuration, the first enclosure plate 112 and the cold plate body 11 are made of the same thermally conductive material (such as aluminum alloy, copper alloy, etc.) and formed into an integral structure through an integrated molding process. For example, by using a casting process, the cold plate body 11 and the first enclosure plate 112 can be made into an integral structure, which can ensure that there is no seam between the two and improve the thermal conductivity.

[0144] The first cover 7, the first surrounding plate 112, and the cold plate body 11 cooperate to form a first cavity 101, and the main control module 2 is installed inside the first cavity 101. Since the main control module 2 generates relatively little heat, in this embodiment, no heat dissipation channel 111 is provided on the portion of the cold plate body 11 corresponding to the main control module 2. Instead, heat dissipation is achieved through a surrounding structure formed by the first surrounding plate 112 and the cold plate body 11. This surrounding heat dissipation method allows heat to be evenly conducted from the main control module 2 to the surfaces of the cold plate body 11 and the first surrounding plate 112, and then dissipated through heat exchange with the outside air, thereby meeting the heat dissipation requirements of the main control module 2. Simultaneously, it avoids the problem of excessively low temperatures in the cold plate body 11 that might result from providing a heat dissipation channel 111, preventing condensation of moisture in the air on the surface of the main control module 2 due to excessively low temperatures, which could lead to short circuits and other malfunctions. The above-mentioned heat dissipation structure design ensures effective heat dissipation while improving the reliability and stability of the electrical control box 10.

[0145] In some embodiments, the first housing 1 further includes a second cover 12 and a third cover 13, forming a multi-cavity structure. Specifically, the second cover 12 mates with one side of the cold plate body 11 to form a second cavity 102, and the third cover 13 mates with the other side of the cold plate body 11 to form a third cavity 103. The multi-cavity structure of this embodiment breaks through the limitations of the traditional single cavity and provides a spatial basis for the functional expansion of the electronic control box 10.

[0146] Specifically, the cold plate body 11, as a key connecting component, has a first opening 1101 in the portion located between the first cavity 101 and the second cavity 102. This first opening 1101 serves as a channel for connecting different cavity functional modules, allowing the drive board 51 and filter board 52 in the frequency converter module 5 to be installed in the second cavity 102 and the third cavity 103 respectively, while the connection between the drive board 51 and the filter board 52 is achieved through the power connection structure 501.

[0147] In one configuration, the first housing 1 further includes a second enclosure 113 connected to one side of the cold plate body 11. The first enclosure 112 and the second enclosure 113 are connected to the same side of the cold plate body 11. The second cover 12 and the second enclosure 113 are sealed with the cold plate body 11 to form a second cavity 102. The third cover 13 is sealed with the other side of the cold plate body 11 to form a third cavity 103. That is, the second cavity 102 and the third cavity 103 are located on both sides of the cold plate body 11 along the thickness direction of the cold plate body 11, wherein the second cavity 102 and the first cavity 101 are located on the same side of the cold plate body 11.

[0148] In some embodiments, the first housing 1 may further be provided with a third enclosure 114. The third enclosure 114 is connected to the side of the cold plate body 11 facing away from the second enclosure 113, in which case the third cover 13 cooperates with the third enclosure 114 and the cold plate body 11 to form a third cavity 103; or, the third cover 13 directly seals and covers the side of the cold plate body 11 facing away from the second enclosure 113 to form the third cavity 103. The diverse cavity formation methods can be flexibly selected according to actual production needs and spatial layout, enhancing the adaptability of the design.

[0149] The electrical control box 10 in this embodiment also includes a frequency converter module 5, a power connection structure 501, and electrical connection wires. The frequency converter module 5 includes a drive board 51 and a filter board 52, which are respectively installed in the second cavity 102 and the third cavity 103. The drive board 51 is mainly used for frequency conversion drive control of loads such as motors and fans. By adjusting the output voltage and frequency, it realizes the speed regulation, start and stop functions of motors and fans. The filter board 52 filters the input and output currents, removes harmonic interference, and improves power quality.

[0150] The power connection structure 501 can be a conductive post, wire, or other conductive connector. The power connection structure 501 passes through the first opening 1101, and its two ends are respectively connected to the drive board 51 and the filter board 52 to electrically connect the drive board 51 and the filter board 52. By setting the first opening 1101 and the power connection structure 501, the connection between circuits can be simplified, and the complexity and length of internal wiring can be reduced.

[0151] The electrical connection wire can be made of multi-strand copper wire or coaxial cable. The electrical connection wire extends from the second cavity 102 to the first cavity 101, connecting the drive board 51 and the main control module 2, so that the main control module 2 can control the frequency converter module 5 and exchange data.

[0152] As core components of the frequency converter module 5, the drive board 51 and filter board 52 generate heat during operation. If heat cannot be dissipated effectively in a timely manner, their performance and service life will be severely affected. In this embodiment, by placing the drive board 51 and filter board 52 on the second cavity 102 and the third cavity 103 on both sides of the cold plate body 11, the heat dissipation advantage of the cold plate body 11 is fully utilized, thereby improving the overall heat dissipation performance of the electrical control box 10.

[0153] From a structural layout perspective, the second cover 12, the second enclosure 113, and the cold plate body 11 are sealed together to form the second cavity 102, and the drive plate 51 is installed inside the second cavity 102; the third cover 13 and the cold plate body 11 (or the third enclosure 114 and the cold plate body 11) are fitted together to form the third cavity 103, and the filter plate 52 is installed inside the third cavity 103. As a key component connecting the two cavities, the cold plate body 11, with its plate-like structure and internal heat dissipation channel 111 design, provides a good foundation for heat dissipation.

[0154] When the drive board 51 and filter board 52 are working, the heat generated is first conducted to the internal space of their respective cavities. Since the cold plate body 11 serves as part of the wall of the two cavities, the heat is quickly transferred to the cold plate body 11. The heat dissipation channels 111 inside the cold plate body 11 carry away the absorbed heat. This achieves heat dissipation for the drive board 51 and filter board 52.

[0155] This design allows the cooling plate body 11 to simultaneously dissipate heat from the circuit boards in both cavities, significantly improving heat dissipation efficiency compared to traditional independent heat dissipation methods. On one hand, the large heat dissipation surface of the cooling plate body 11 can fully contact the heat sources in both cavities, rapidly absorbing heat. On the other hand, the shared heat dissipation channel 111 design reduces redundant heat dissipation structures, lowering costs and the overall size of the control box 10. Furthermore, the unified heat dissipation system facilitates later maintenance and management, ensuring that the drive board 51 and filter board 52 always operate in a suitable temperature environment, guaranteeing the stable operation of the frequency converter module 5, and thus improving the reliability and service life of the entire control box 10.

[0156] In some embodiments, such as Figure 18 and Figure 21 As shown, the electrical control box 10 also includes a power terminal block 6 for connecting an external power supply. The power terminal block 6 further optimizes the electrical connection and safety performance of the electrical control box 10.

[0157] Specifically, the power connector 6 is installed in the first housing 1, specifically on the cold plate body 11, and located on the side of the drive board 51 away from the main control module 2. It partially extends into the second cavity 102 and is electrically connected to the filter board 52. Since the power connector 6 is connected to municipal high-voltage electricity, the separation of the power connector 6 from the main control module 2 in this embodiment effectively avoids interference from high-voltage electricity to the weak-voltage signals of the main control module 2. In one configuration, the cold plate body 11 has a long, strip-shaped plate structure. The main control module 2 and the power connector 6 are located at both ends of the cold plate body 11 along its length, while the drive board 51 is located in the middle of the cold plate body 11, thus separating the main control module 2 and the power connector 6.

[0158] In some embodiments, such as Figure 20 As shown, the cold plate body 11 is provided with a mounting port 1102 communicating with the third cavity 103. The mounting port 1102 is located on the side of the second cavity 102 away from the first cavity 101. The power connector 6 is installed at the mounting port 1102 and is partially exposed on the side of the cold plate body 11 facing away from the third cavity 103. For example, as Figure 18 As shown, the power connector 6 includes an insulating base 61 and a conductive post 62. The insulating base 61 is connected to the cold plate body 11 and seals the mounting opening 1102, serving as insulation and fixation. The conductive post 62 passes through the insulating base 61, with one end extending into the third cavity 103 and connecting to the filter plate 52, and the other end exposed on the surface of the insulating base 61 facing away from the third cavity 103, for connecting an external power cord.

[0159] To further ensure safety, the first housing 1 is also equipped with a terminal block protective shell 15. The terminal block protective shell 15 is connected to the cold plate body 11 and is located on the side of the second cavity 102 away from the first cavity 101, with a power cord outlet 1501 at its bottom. The terminal block protective shell 15 can prevent personnel from accidentally touching the power terminal block 6, avoiding the risk of electric shock, and at the same time, it can fix and protect the power cord.

[0160] In some embodiments, the electrical control box 10 further includes an independently configured central module, a second housing, and a central communication line. The central module is installed in the second housing and is mainly responsible for the data acquisition, processing, and transmission of electronic devices such as sensors and electronic valves in the outdoor unit of the HVAC equipment, and transmits the data to the main control module for further processing. One end of the central communication line is electrically connected to the central module, and the other end extends into the first cavity 101 and is electrically connected to the communication interface module 212 of the main control module 2, realizing data transmission between the two.

[0161] In terms of wiring design, the first enclosure 112 and the second enclosure 113 are arranged at intervals in the vertical direction and cooperate with the cold plate body 11 to define the cable passage 106. The central communication line enters the first cavity 101 through the cable passage 106 and is electrically connected to the main control module 2. This design makes the wiring more organized and avoids messy and tangled cables. The cable passage 106 extends through the opposite sides of the first box 1 along its extension direction, forming the first cable passage 1061 and the second cable passage 1062.

[0162] The second communication interface 2122 of the communication interface module 212 is located closer to the second cable tray 1062 than the first communication interface 2121. External device communication cables enter the cable tray 106 via the first cable tray 1061 and are electrically connected to the first communication interface 2121; the central communication cable enters the cable tray 106 via the second cable tray 1062 and is electrically connected to the second communication interface 2122. This layout clearly separates cables for different functions, reduces mutual interference between signals, and improves the overall signal transmission stability and reliability of the control box 10.

[0163] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electrical control box, characterized in that, include: The first box body has a first cavity; as well as The main control module, located in the first cavity, includes: The main control board has at least one interactive module; and The main control power supply board is electrically connected to the main control board; The main control board and the main control power board are stacked along the depth direction of the first cavity, and the main control board is closer to the opening of the first cavity than the main control power board.

2. The electrical control box according to claim 1, characterized in that, The main control power board is equipped with a rectifier and filter circuit. The main control board covers the rectifier and filter circuit. The at least one interactive module is located on the side of the main control board that is away from the rectifier and filter circuit and is exposed in the opening of the first cavity.

3. The electrical control box according to claim 2, characterized in that, The electrical control box also includes a partition, which is installed between the main control power board and the main control board and covers the rectifier and filter circuit.

4. The electrical control box according to claim 3, characterized in that, The partition is a metal plate; or, the outer surface of the partition is provided with a conductive coating.

5. The electrical control box according to claim 3, characterized in that, The main control power board is connected to the bottom wall of the first cavity, the partition is connected to the bottom wall of the first cavity, and the main control board is connected to the partition.

6. The electrical control box according to claim 5, characterized in that, The electrical control box also includes a first fastener, the main control power board is provided with a first connection hole, the bottom wall of the first cavity is provided with a first connection post, the first connection post extends toward the first connection hole and is connected to the main control power board through the first fastener; And / or, the bottom wall of the first cavity is provided with at least one first positioning post, and the main control power board is provided with a first positioning hole for cooperating with the first positioning post.

7. The electrical control box according to claim 6, characterized in that, The electrical control box also includes a second fastener, the partition is provided with a second connecting hole, the bottom wall of the first cavity is provided with a second connecting post, the second connecting post extends toward the second connecting hole and is connected to the partition through the second fastener, and the main control board is connected to the partition; And / or, the bottom wall of the first cavity is provided with at least one second positioning post, and the partition is provided with a second positioning hole for cooperating with the second positioning post.

8. The electrical control box according to claim 3, characterized in that, The electrical control box also includes: A protective cover is disposed in the first cavity and covers the main control board. The protective cover includes a cover body, which has at least one window for exposing the at least one interactive module.

9. The electrical control box according to claim 8, characterized in that, The electrical control box also includes a spring clip, which is connected to one of the protective cover and the partition. The other of the protective cover and the partition is provided with a groove for engaging with the spring clip.

10. The electrical control box according to claim 9, characterized in that, The snap fastener includes a snap arm connected to the protective cover on the side facing the partition. The snap arm has a protrusion on its outer periphery and passes through the snap groove. The protrusion engages with the wall of the snap groove.

11. The electrical control box according to claim 8, characterized in that, The inner wall of the first cavity is provided with at least two receiving platforms, and the edge of the protective cover facing the main control board is provided with a surrounding edge, which abuts against the receiving platform.

12. The electrical control box according to claim 11, characterized in that, The receiving platform has a slot on the side facing the protective cover, and the surrounding edge abuts against the slot.

13. The electrical control box according to claim 12, characterized in that, The edge of the partition is provided with at least one flange, and at least one of the flanges abuts against the upper surface of the receiving platform or the slot.

14. The electrical control box according to claim 8, characterized in that, The at least one interactive module includes one or more of an inspection module, a storage interface module, and a communication interface module.

15. The electrical control box according to claim 14, characterized in that, The interactive module includes an inspection module, which includes a display screen and buttons, and the window includes a first view for displaying the inspection module.

16. The electrical control box according to claim 15, characterized in that, The protective cover further includes a viewing element, which is disposed over the first viewing window for displaying the inspection module. The viewing element includes: A perspective section is disposed within the first viewing window, directly facing the display screen; and A pressing part is connected to the transparent part and is positioned directly opposite the button within the first viewing window, for pressing the button to perform an inspection.

17. The electrical control box according to claim 15, characterized in that, The interaction module also includes a storage interface module, and the window also includes a second window for displaying the storage interface module.

18. The electrical control box according to claim 17, characterized in that, The first window and the second window are arranged at intervals along one long side of the cover body.

19. The electrical control box according to claim 17, characterized in that, The protective cover has a clearance cavity on the side facing the main control module to avoid electronic components, and the second window is located on the side wall of the clearance cavity.

20. The electrical control box according to claim 19, characterized in that, The protective cover has a first clearance groove on the side facing away from the main control module, and the second window connects the first clearance groove and the clearance cavity.

21. The electrical control box according to claim 15, characterized in that, The interaction module also includes a communication interface module, and the window also includes a third window for displaying the communication interface module.

22. The electrical control box according to claim 21, characterized in that, The cover body has a first side and a second side opposite to each other. In the direction from the first side to the second side, the first window and the third window are arranged at intervals, with the first window disposed along the first side and the third window disposed along the second side.

23. The electrical control box according to claim 22, characterized in that, The communication interface module includes a first communication interface and a second communication interface. The third window includes a first sub-window for displaying the first communication interface and a second sub-window for displaying the second communication interface. The first sub-window and the second sub-window are arranged at an angle along the second side of the cover body and are interconnected.

24. The electrical control box according to claim 23, characterized in that, The first sub-window has a notch, and the notch is oriented from the first side to the second side.

25. The electrical control box according to claim 23, characterized in that, The first communication interface is one or more of the following: an interface for communicating with the outdoor unit of the HVAC equipment, an interface for communicating with the indoor unit of the HVAC equipment, and an interface for communicating with the central controller of the HVAC equipment. The second communication interface is one or more of the following: a wireless communication interface and a central interface.

26. The electrical control box according to claim 8, characterized in that, It also includes a first lid, which is rotatably connected to the first box body and can be flipped to open or close the first cavity.

27. The electrical control box according to claim 26, characterized in that, The first box body is provided with a rotating shaft, the first box cover is provided with at least two clamping arms, each clamping arm is provided with a clamping groove, the openings of two adjacent clamping grooves face opposite directions, and the rotating shaft passes through each clamping groove.

28. The electrical control box according to claim 26, characterized in that, The electronic control box also includes a hovering component, which includes: A limiting member is connected to the side of the protective cover facing the first box cover; and A support member is connected to the first lid and extends toward the protective cover. During the opening of the first lid, the support member abuts against the limiting member to suspend the first lid.

29. The electrical control box according to claim 28, characterized in that, The protective cover is provided with a second clearance groove into which the support member can be inserted, and the limiting member is provided on one side of the second clearance groove to abut against the support member so that the first box cover is suspended. And / or, the limiting member is made of an elastic material.

30. The electrical control box according to claim 29, characterized in that, The second clearance groove is provided at the edge of the cover body; One end of the limiting member is connected to the opening of the second clearance groove, and the other end is provided with a blocking block. The blocking block is used to abut against the support member so that the first box cover is suspended.

31. The electrical control box according to claim 1, characterized in that, It also includes a first lid, which is connected to the opening of the first cavity; The first box lid has a sealing groove on the side facing the first box body. The sealing groove is arranged around the edge of the first box lid and is provided with a sealing element. The first box body covers the opening of the sealing groove to seal the first cavity.

32. The electrical control box according to claim 31, characterized in that, The sealing element includes a sealing ring or a sealant.

33. The electrical control box according to claim 1, characterized in that, It also includes a first lid, which is connected to the opening of the first cavity; The first housing includes: The main body of the cold plate is plate-shaped and has heat dissipation channels; and The first enclosure is connected to the main body of the cold plate; The first box cover, the first enclosure, and the cold plate body cooperate to form the first cavity. The first box cover is rotatably connected to the first enclosure and can be flipped to open or close the first cavity.

34. The electrical control box according to claim 1, characterized in that, It also includes a first lid, which is connected to the opening of the first cavity; The first housing includes: Cold plate body; and The first enclosure panel is an integral structure with the main body of the cold plate; The first box cover, the first enclosure, and the cold plate body cooperate to form the first cavity. The first box cover is rotatably connected to the first enclosure and can be flipped to open or close the first cavity.

35. The electrical control box according to claim 33 or 34, characterized in that, The first box body also includes a second box cover and a third box cover. The second box cover cooperates with one side of the cold plate body to form a second cavity, and the third box cover cooperates with the other side of the cold plate body to form a third cavity. The cold plate body is provided with a first opening, and the first opening connects the first cavity and the second cavity. The electrical control box also includes a frequency converter module, a power connection structure, and electrical connection wires. The frequency converter module includes a drive board and a filter board. The drive board is located in the second cavity, and the filter board is located in the third cavity. The power connection structure passes through the first opening, and its two ends are respectively connected to the drive board and the filter board. The electrical connection wires extend from the second cavity to the first cavity to electrically connect the drive board and the main control module.

36. The electrical control box according to claim 1, characterized in that, The electrical control box also includes a central module, a second box body, and a central communication line. The second box body is independently set up from the first box body. The central module is located in the second box body. One end of the central communication line is electrically connected to the central module, and the other end extends into the first cavity and is electrically connected to the main control module.

37. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, The HVAC equipment includes a housing and an electrical control box as described in any one of claims 1 to 36, wherein the electrical control box is disposed within the housing.

38. The HVAC equipment according to claim 37, characterized in that, The housing is provided with an inspection port; the electrical control box is located at the inspection port, wherein the first cavity is disposed facing the inspection port.

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