Electric control box and heating device

Abstract

The application discloses an electric control box and a heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The electric control box comprises a box body, a circuit module and a box cover. The box cover is sealingly connected with the box body, so that the box cover and the box body can jointly form a mounting cavity. The circuit module is arranged in the mounting cavity. The circuit module comprises a heating component. A heat dissipation protrusion protruding towards the circuit module is arranged on the box cover. The heat dissipation protrusion is arranged in correspondence with the heating component, so that the heat dissipation protrusion is closer to the heating component, the heat conduction distance between the heat dissipation protrusion and the heating component is shortened, and the heat dissipation protrusion can well absorb the heat of the heating component. The heat dissipation efficiency of the circuit module is improved, and the heat dissipation effect of the electric control box is improved.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, and more particularly 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 control component of HVAC equipment, the electrical control box is used to control the operation of devices such as compressors and fans. However, the circuit modules inside the electrical control box generate a lot of heat, and the heat-generating points on the circuit modules are far from the box body, resulting in less than ideal heat dissipation. Utility Model Content

[0004] This application provides an electrical control box and a heating and ventilation device, which can solve the technical problem that the heat dissipation effect of the electrical control box is not ideal.

[0005] In a first aspect, embodiments of this application provide an electronic control box, which includes:

[0006] Box body;

[0007] Circuit module, including heat-generating components; and

[0008] The lid is sealed to the box body and cooperates with the box body to form a mounting cavity for accommodating the circuit module. The lid includes a heat dissipation protrusion that protrudes toward the circuit module and is correspondingly disposed with the heat-generating component to absorb the heat of the heat-generating component.

[0009] In some embodiments, the heat dissipation boss includes:

[0010] A first protrusion, which extends along a first direction;

[0011] A plurality of second protrusions are distributed along the first direction and connected to the first protrusion;

[0012] The heating element has multiple components, and the multiple second protrusions are respectively arranged in a one-to-one correspondence with the multiple heating elements.

[0013] In some embodiments, the second protrusion extends along a second direction, which forms an angle with the first direction.

[0014] In some embodiments, the first protrusion and the second protrusion are integrally formed.

[0015] In some embodiments, both the first protrusion and the second protrusion include a heat-dissipating material.

[0016] In some embodiments, the housing includes a heat-dissipating material and is integrally manufactured from the heat-dissipating material.

[0017] In some embodiments, the electrical control box further includes a heat-conducting element connected to the side of the heat dissipation boss facing the heat-generating component, and the heat-conducting element is used to transfer the heat of the heat-generating component to the heat dissipation boss.

[0018] In some embodiments, the cover has a reinforcement that protrudes toward the circuit module.

[0019] In some embodiments, the reinforcing portion is connected to the heat dissipation boss.

[0020] In some embodiments, the lid has a sealing groove on the side facing the box body, the sealing groove is arranged around the edge of the lid, the sealing groove is provided with a sealing element, and the box body covers the opening of the sealing groove to seal the mounting cavity.

[0021] In some embodiments, the seal includes a sealing ring, sealant, or sponge.

[0022] In some embodiments, the mounting cavity includes a first cavity and a second cavity, the first cavity and the second cavity being disposed at a distance from each other in the thickness direction of the housing, and the housing having an opening communicating with the first cavity and the second cavity;

[0023] The circuit module further includes a filtering component and a driving component, wherein the filtering component is disposed in the first cavity and the driving component is disposed in the second cavity;

[0024] The heating element is an electrical connection structure that passes through the opening, and its two ends are electrically connected to the driving component and the filtering component, respectively.

[0025] In some embodiments, the filtering component includes a filter board and a common-mode inductor connected to the filter board;

[0026] At least a portion of the heat dissipation protrusion extends toward the common mode inductor to absorb the heat from the common mode inductor.

[0027] In some embodiments, the driving assembly includes a driving board, the power connection structure passes through the opening, one end of the power connection structure is electrically connected to the filter board, and the other end of the power connection structure is electrically connected to the driving board.

[0028] In some embodiments, the power connection structure includes:

[0029] An insulating base is installed at the opening; and

[0030] A power connection post is disposed on the insulating base and passes through the opening, with its two ends respectively connected to the drive assembly and the filter assembly;

[0031] The power contact post is provided in a manner corresponding to the heat dissipation protrusion, so as to transfer the heat of the power contact post to the heat dissipation protrusion.

[0032] In some embodiments, the housing includes a cold plate body and a surrounding panel connected to the cold plate body, the surrounding panel being disposed around one side of the cold plate body;

[0033] The box cover also includes a first cover body and a second cover body, the first cover body and the second cover body are respectively located on opposite sides of the cold plate body, and the first cover body and / or the second cover body are provided with the heat dissipation protrusion;

[0034] The first cover seals and fits onto the side of the cold plate body facing away from the enclosure to form the first cavity, and the second cover seals and fits onto the side of the enclosure away from the cold plate body to form the second cavity.

[0035] Secondly, embodiments of this application provide a heating, ventilation, and air conditioning (HVAC) device, which includes a housing and an electrical control box as described in any of the preceding claims, the electrical control box being disposed within the housing.

[0036] The electrical control box and HVAC equipment based on the embodiments of this application have at least the following beneficial effects:

[0037] By sealing the lid and body together, the lid and body can form an installation cavity. The circuit module is placed inside the installation cavity. The circuit module includes a heat-generating component. By providing a heat dissipation protrusion on the lid that protrudes towards the circuit module and is positioned corresponding to the heat-generating component, the heat dissipation protrusion is closer to the heat-generating component, which shortens the heat conduction distance between the heat dissipation protrusion and the heat-generating component. Since the heat dissipation protrusion is made of a highly thermally conductive material, it can effectively absorb the heat from the heat-generating component, thereby accelerating the heat dissipation efficiency of the circuit module and improving the heat dissipation effect of the control box. Attached Figure Description

[0038] 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 these drawings without creative effort.

[0039] Figure 1 A front view of the outdoor unit provided in an embodiment of this application;

[0040] Figure 2 A three-dimensional structural diagram of the outdoor unit provided in an embodiment of this application;

[0041] Figure 3 A three-dimensional structural diagram of the electrical control box provided in an embodiment of this application;

[0042] Figure 4 This is a three-dimensional structural diagram of the box provided in an embodiment of this application;

[0043] Figure 5 This is a first exploded structural diagram of the electrical control box provided in the embodiments of this application;

[0044] Figure 6 This is a second exploded view of the electrical control box provided in an embodiment of this application;

[0045] Figure 7 This is a three-dimensional structural diagram of the power connection structure provided in the embodiments of this application;

[0046] Figure 8 This is a three-dimensional structural diagram of the box provided in an embodiment of this application.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100. Electrical control box;

[0049] 10. Box body; 101. Mounting cavity; 101a. First cavity; 101b. Second cavity; 102. Opening; 11. Cold plate body; 12. Enclosure;

[0050] 20. Circuit module; 21. Heating component; 211. Power connection structure; 2111. Insulating base; 2112. Power connection post; 22. Filter assembly; 221. Filter board; 222. Common mode inductor; 23. Drive assembly; 231. Drive board;

[0051] 30. Box lid; 301. Sealing groove; 31. Heat dissipation boss; 311. First protrusion; 312. Second protrusion; 32. Reinforcing part; 33. Sealing element; 34. First cover body; 35. Second cover body;

[0052] 2. Outdoor unit; 200. Casing; 200a. Inspection port. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[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, the air conditioning system can be a multi-split system for buildings, that is, multiple indoor units are connected in parallel relative to one or more outdoor units 2, forming a refrigerant circuit so that the refrigerant can circulate. Figure 1 The diagram shows outdoor unit 2 of the air conditioning system. Outdoor unit 2 has a casing 200, which houses a compressor, switching valve, outdoor heat exchanger, outdoor expansion valve, and oil separator, among other components. These components are connected by refrigerant piping. Additionally, outdoor unit 2 includes a blower fan.

[0056] Furthermore, the outdoor unit 2 also includes an electrical control box 100. 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 cuboid 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 100 is the core control component in the HVAC equipment. Installing the electrical control box 100 inside the housing 200 facilitates maintenance and replacement, and also simplifies the installation and layout of the overall HVAC equipment structure. The electrical control box 100 is responsible for controlling the operation of the HVAC equipment. The electrical control box 100 is equipped with various circuit modules 20 (such as main control module, filter module, frequency conversion drive module, etc.), which realize the control function of the HVAC equipment through various electronic components and circuits, and are used to control the start, stop, temperature adjustment, mode switching and other operations of the HVAC equipment.

[0057] The housing 200 provides protection for the circuit modules 20 within the control box 100, preventing dust, moisture, oil, and other external impurities from entering. It also protects the control box 100 from extreme environmental conditions (such as temperature, humidity, and chemical corrosion), ensuring normal operation in various environments and extending the lifespan of the control box 100. The control box 100 contains high-voltage circuits and live components; housing them within the housing 200 prevents accidental contact by users, reducing the risk of electric shock and improving safety. Furthermore, the housing 200 acts as shielding, reducing the impact of external electromagnetic interference on the electronic components within the control box 100, ensuring the stability and reliability of the control system.

[0058] like Figure 1 As shown, in this embodiment, the housing 200 is rectangular, while the electrical control box 100 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 100 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 this application is not limited to the above embodiment in which the length of the control box 100 is arranged along the height of the housing 200. In other embodiments, the length of the control box 100 may also be arranged along the length of the housing 200, or the length of the control box 100 may also be arranged along the width of the housing 200. Furthermore, the control box 100 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 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 100 is located within the air duct, thus utilizing the airflow within the air duct to remove the heat generated by the electrical control box 100, ensuring effective heat dissipation for the electrical control box 100.

[0061] Please continue reading. Figure 1 and Figure 2In 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] Please see Figures 3 to 5 In some embodiments, the electrical control box 100 includes a box body 10, a circuit module 20, and a box cover 30. The circuit module 20 includes a heating element 21. The box cover 30 is sealed to the box body 10, and the box cover 30 and the box body 10 cooperate to form a mounting cavity 101. The circuit module 20 is disposed in the mounting cavity 101. The box cover 30 includes a heat dissipation protrusion 31, which protrudes toward the circuit module 20 and is correspondingly disposed with respect to the heating element 21, so that the heat dissipation protrusion 31 can absorb the heat generated by the heating element 21, which can accelerate the heat dissipation efficiency of the circuit module 20 and thus improve the heat dissipation effect of the electrical control box 100.

[0063] In this embodiment, both the box body 10 and the box cover 30 can be made of metal materials with good thermal conductivity, such as aluminum alloy or copper alloy. Thus, the box body 10 and the box cover 30 themselves have good thermal conductivity. The circuit module 20 is placed in the mounting cavity 101 formed by the cooperation of the box cover 30 and the box body 10. The heat generated by the circuit module 20 can be quickly transferred to the box body 10 and the box cover 30, thereby increasing the heat dissipation efficiency of the electrical control box 100.

[0064] It should be noted that the heat of the circuit module 20 is mainly generated by the heat-generating component 21. When the circuit module 20 is placed inside the mounting cavity 101, the heat-generating component 21 is usually far away from the box body 10 and the box cover 30. The heat generated by the heat-generating component 21 cannot be well dissipated through the box body 10 and the box cover 30, resulting in an unsatisfactory heat dissipation effect of the control box 100.

[0065] In this embodiment, the cover 30 may include a cover body and a heat dissipation protrusion 31. The cover body may be the first cover 34 or the second cover 35 as described below. The heat dissipation protrusion 31 is integrally formed with the cover body, and the heat dissipation protrusion 31 protrudes towards the circuit module 20, so that the heat dissipation protrusion 31 can be closer to the circuit module 20 relative to the cover body. The heat dissipation protrusion 31 is correspondingly arranged with the heat-generating component 21, so that the heat conduction distance between the heat dissipation protrusion 31 and the heat-generating component 21 is shortened. Thus, the heat dissipation protrusion 31 can effectively absorb the heat generated by the heat-generating component 21, which can improve the heat dissipation efficiency of the circuit module 20 and thus improve the heat dissipation effect of the electronic control box 100.

[0066] In some embodiments, the heat dissipation boss 31 can be made of a non-metallic material with good thermal conductivity, such as thermally conductive ceramics or graphite. The heat dissipation boss 31 can directly contact the heat-generating component 21, thereby allowing the heat dissipation boss 31 to better absorb the heat from the heat-generating component 21 and further improve the heat dissipation effect of the control box 100.

[0067] Please see Figure 4 and Figure 5 In some embodiments, the heat dissipation protrusion 31 includes a first protrusion 311 and a plurality of second protrusions 312. The first protrusion 311 can extend along a first direction, and the plurality of second protrusions 312 can be distributed along the first direction and connected to the first protrusion 311. In this embodiment, the heat-generating component 21 has a plurality of protrusions, and the plurality of second protrusions 312 are respectively arranged in a one-to-one correspondence with the plurality of heat-generating components 21, so that the plurality of second protrusions 312 can absorb the heat of the plurality of heat-generating components 21 respectively, thereby achieving uniform heat dissipation and further improving the heat dissipation effect of the electrical control box 100.

[0068] More specifically, the first direction is the length direction of the control box 100. Figure 4 The Z-axis direction is the length direction of the control box 100. The first protrusion 311 extends along the first direction, so that the first protrusion 311 can correspond to the long side of the cover 30. The first protrusion 311 protrudes towards the circuit module 20, which can increase the contact area between the first protrusion 311 and the air inside the box 10. The first protrusion 311 is also made of a material with good thermal conductivity, so the first protrusion 311 also has good heat dissipation performance, which allows the first protrusion 311 to absorb the heat inside the box 10 and transfer the heat to the cover body. The cover body can quickly transfer the heat to the outside, which can further improve the heat dissipation effect of the control box 100.

[0069] In this embodiment, multiple second protrusions 312 are distributed along the first direction, and each second protrusion 312 can protrude toward a corresponding heating element 21, so that the multiple second protrusions 312 can be configured one-to-one with the multiple heating elements 21. Thus, each second protrusion 312 can absorb the heat generated by the corresponding heating element 21, so that the heat generated by each heating element 21 can be quickly transferred to the corresponding second protrusion 312. Since the multiple second protrusions 312 are connected to the first protrusion 311, the multiple second protrusions 312 can transfer the absorbed heat to the first protrusion 311. The first protrusion 311 can evenly transfer the absorbed heat to the lid body. Similarly, the lid body can quickly transfer heat to the outside, further improving the heat dissipation effect of the electronic control box 100.

[0070] In order to further improve the heat dissipation effect of the control box 100, in this embodiment the second protrusion 312 extends along the second direction, and the second direction forms an angle with the first direction.

[0071] Optionally, the second direction can be the width direction of the control box 100. Figure 4 The X-axis direction is the width direction of the electrical control box 100, that is, the extension direction of the second protrusion 312 is perpendicular to the extension direction of the first protrusion 311. It can also be said that the second protrusion 312 and the first protrusion 311 are set perpendicular to each other. When the second protrusion 312 and the first protrusion 311 are perpendicular to each other, the second protrusion 312 can transfer heat to the box cover body more evenly, further improving the heat dissipation efficiency.

[0072] To put it more clearly, in combination Figure 4 It can be seen that there are two connection forms between the second protrusion 312 and the first protrusion 311. The first connection form is that one end of the second protrusion 312 is connected to the first protrusion 311. The second connection form is that the second protrusion 312 and the first protrusion 311 are connected crosswise, and the two ends of the second protrusion 312 are located on opposite sides of the first protrusion 311. Under these two connection forms, when the second protrusion 312 and the first protrusion 311 are perpendicular to each other, the vertical distance between the end of the second protrusion 312 away from the first protrusion 311 and the first protrusion 311 is the greatest. After the second protrusion 312 absorbs the heat from the heating element 21, the end of the second protrusion 312 away from the first protrusion 311 can transfer the heat away from the first protrusion 311, allowing the heat to diffuse to the area away from the first protrusion 311. Furthermore, the second protrusion 312 can also transfer the heat to the first protrusion 311, which then diffuses the heat to the vicinity of the first protrusion 311. As a result, the heat can be evenly diffused onto the lid body, allowing the lid 30 to dissipate heat to the outside more evenly, thereby further improving the heat dissipation efficiency.

[0073] In order to improve the heat conduction efficiency between the first protrusion 311 and the second protrusion 312, in this embodiment the first protrusion 311 and the second protrusion 312 are integrally formed, so that the first protrusion 311 and the second protrusion 312 can become a whole, thereby reducing the heat conduction resistance between the first protrusion 311 and the second protrusion 312, so that the heat absorbed by the second protrusion 312 from the heating component 21 can be quickly transferred to the first protrusion 311, thereby improving the heat dissipation efficiency of the second protrusion 312.

[0074] In some embodiments, both the first protrusion 311 and the second protrusion 312 include a heat dissipation material. In this embodiment, both the first protrusion 311 and the second protrusion 312 are made of a metal material with good thermal conductivity, such as aluminum alloy or copper alloy, which can increase the heat dissipation performance of the lid.

[0075] In some embodiments, the housing 10 may include a heat dissipation material, and the housing 10 is integrally manufactured from the heat dissipation material. In this embodiment, the housing 10 may be made of a metal material with good thermal conductivity, such as an aluminum alloy or copper alloy integrally cast, so that the housing 10 itself has good thermal conductivity, so that the heat generated on the circuit module 20 can also be transferred to the housing 10, and the housing 10 dissipates heat from the circuit module 20, which can further increase the heat dissipation efficiency of the control box 100.

[0076] In some embodiments, the control box 100 further includes a heat-conducting element connected to the heat dissipation boss 31 on the side facing the heat-generating component 21, and the heat-conducting element is used to transfer the heat of the heat-generating component 21 to the heat dissipation boss 31.

[0077] Optionally, the heat-conducting component can be made of materials with good thermal conductivity, such as thermally conductive silicone sheet, graphite heat-conducting component, carbon fiber heat-conducting component, and ceramic heat-conducting component. The side of the heat dissipation boss 31 facing the heat-generating component 21 is flat, so that the heat-conducting component can be bonded to the heat dissipation boss 31. By absorbing the heat of the heat-generating component 21 through the heat-conducting component, the heat absorption efficiency can be further improved. Thus, the heat generated by the heat-generating component 21 can be quickly transferred to the heat dissipation boss 31, and the heat can be transferred to the cover body through the heat dissipation boss 31. The cover body then dissipates the heat to the outside, further improving the heat dissipation efficiency of the electronic control box 100.

[0078] In some embodiments, the thermally conductive component can be a material with good insulation and thermal conductivity, such as a thermally conductive silicone sheet or a ceramic thermally conductive component. Therefore, the thermally conductive component is suitable for scenarios requiring electrical isolation. Even if the heating component 21 is energized, the thermally conductive component can still make thermal contact with the heating component 21. The heating component 21 is electrically isolated from the cover 30 through the thermally conductive component. Furthermore, the thermal conductivity of the thermally conductive component can be used to quickly transfer the heat generated by the heating component 21 to the heat dissipation protrusion 31. Direct thermal contact between the thermally conductive component and the heating component 21 can further improve the heat dissipation efficiency.

[0079] Please continue reading. Figure 4 and Figure 5 In some embodiments, the cover 30 has a reinforcing portion 32 that protrudes toward the circuit module 20.

[0080] Optionally, by providing a reinforcing part 32 on the lid 30, the structural strength of the lid 30 can be increased, which can prevent the lid 30 from deforming. The overall structural strength of the lid 30 is increased, which can also prevent the formation of the heat dissipation protrusion 31, so that the heat dissipation protrusion 31 can better absorb the heat of the heat-generating component 21.

[0081] In some embodiments, the reinforcing part 32 is connected to the heat dissipation protrusion 31. Specifically, the cover 30 has a plurality of reinforcing parts 32, including a first reinforcing part 32 extending along a first direction and a second reinforcing part 32 extending along a second direction. The first reinforcing part 32 and the second reinforcing part 32 are connected to each other to further increase the structural strength of the cover 30.

[0082] Optionally, the first reinforcing part 32 and the second reinforcing part 32 can also be made of a material with good thermal conductivity. The first reinforcing part 32 can be connected to the second protrusion 312, so that the first reinforcing part 32 can further increase the structural strength of the second protrusion 312, and the heat absorbed by the second protrusion 312 can be transferred on the lid body along the first direction through the first reinforcing part 32. Similarly, the second reinforcing part 32 can be connected to the first protrusion 311, so that the second reinforcing part 32 can further increase the structural strength of the first protrusion 311, and the heat absorbed by the first protrusion 311 can be transferred on the lid body along the second direction through the second reinforcing part 32, so that the heat can be transferred to the lid 30 more evenly, and the heat dissipation efficiency can be further improved.

[0083] When the lid 30 is closed, the lid 30 is sealed to the body 10, thereby enhancing the protection of the internal circuit module 20.

[0084] Specifically, such as Figure 4 and Figure 5As shown, a sealing groove 301 is provided on the side of the lid 30 facing the box body 10. The sealing groove 301 is distributed around the edge of the lid 30, and its shape is adapted to the contour of the edge of the lid 30, and can be a closed ring. A sealing element 33 is provided in the sealing groove 301. The box body 10 covers the opening of the sealing groove 301 to seal the mounting cavity 101. The depth and width of the sealing groove 301 can ensure that the sealing element 33 is stably installed in it, and at the same time, it can fully exert its sealing function when the lid 30 is closed. This surrounding layout allows the sealing element 33 to form a sealed protection for the mounting cavity 101, thereby preventing the entry of external substances.

[0085] The seal 33 can be made of a sealing ring, sealant, or sponge. The sealing ring is made of elastic materials such as rubber, silicone rubber, or fluororubber. The sealant is a liquid sealing material, such as silicone sealant, which can fill the sealing groove 301 after application. The sponge can be made of polyurethane sponge, silicone sponge, or other materials.

[0086] The sealing groove 301 corresponds to the open edge of the mounting cavity 101. When the cover 30 is closed on the box body 10, the seal 33 is clamped between the sealing groove 301 and the box body 10, thereby improving the protective effect of the electrical control box 100. In dusty industrial environments, it can prevent dust from accumulating on the circuit module 20, 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 100, reduce maintenance frequency and costs, and improve the reliability and safety of the equipment.

[0087] Please see Figures 5 to 8 In some embodiments, the mounting cavity 101 includes a first cavity 101a and a second cavity 101b, which are spaced apart from each other in the thickness direction of the housing 10. The housing 10 also has an opening 102 that connects the first cavity 101a and the second cavity 101b. The circuit module 20 also includes a filter component 22 and a drive component 23. The filter component 22 is disposed in the first cavity 101a, and the drive component 23 is disposed in the second cavity 101b. The heating component 21 is an electrical connection structure 211, which passes through the opening 102, and its two ends are electrically connected to the drive component 23 and the filter component 22, respectively.

[0088] Understandably, the housing 10 is a shell structure with a certain thickness. The first cavity 101a and the second cavity 101b are arranged at intervals relative to each other in the thickness direction of the housing 10, that is, a portion of the housing 10 separates the first cavity 101a and the second cavity 101b. By setting the first cavity 101a and the second cavity 101b, the partitioned layout of different functional modules is realized. For example, circuit boards with different functions can be arranged in the first cavity 101a and the second cavity 101b. In this embodiment, the filter component 22 is arranged in the first cavity 101a, and the drive component 23 is arranged in the second cavity 101b. The thickness direction of the drive component 23 and the filter component 22 is consistent with the thickness direction of the housing 10. When viewed from the thickness direction of the housing 10 (i.e., from one side to the other), the drive component 23 and the filter component 22 are arranged sequentially along the thickness direction of the housing 10, rather than being placed horizontally or diagonally. This layout allows the drive assembly 23 and the filter assembly 22 to fully utilize the space in the thickness direction of the housing 10, resulting in efficient use of the internal space of the control box 100 and a more compact overall structure. This design enables more functions to be implemented within a limited space and is suitable for applications with high space requirements.

[0089] Optionally, the power connection structure 211 can be a conductive post, wire, or other conductive connector. The power connection structure 211 passes through the opening 102, and its two ends are respectively connected to the drive component 23 and the filter component 22 to electrically connect them. The opening 102 and the power connection structure 211 simplify the connections between circuits and reduce the complexity and length of internal wiring. Although the drive component 23 and the filter component 22 are electrically connected through the power connection structure 211, they still maintain a certain degree of physical isolation, which helps maintain their respective operating environments, such as temperature, vibration, and contamination.

[0090] By providing the opening 102 and the power connection structure 211, the connection between the drive assembly 23 and the filter assembly 22 can be completed inside the housing 10, eliminating the need for external wiring. This reduces the need for external wiring between the drive assembly 23 and the filter assembly 22, making the overall layout of the control box 100 simpler. Furthermore, due to the reduction in external wiring, the number and size of the wiring holes in the housing 10 can be reduced accordingly, which helps improve the sealing of the housing 10, thereby better protecting the internal circuit module 20 from dust, moisture, and other contaminants.

[0091] Because the filter component 22 in the first cavity 101a and the drive component 23 in the second cavity 101b are functionally independent and connected by the power connection structure 211, this compartmentalized design makes the functional division within the control box 100 clearer, facilitating management and maintenance. When maintenance or repair of a certain circuit module 20 is required, the problem can be located more quickly, reducing the impact on other circuit modules 20 and improving maintenance efficiency. Furthermore, the drive component 23 and the filter component 22 are located in independent cavities and electrically connected by the power connection structure 211, with their main bodies isolated by the box 10. This layout effectively reduces signal interference between the drive component 23 and the filter component 22. In the control box 100, signal interference is one of the important causes of equipment instability and malfunction. The compartmentalized design significantly reduces this interference and improves the reliability of the control box 100.

[0092] In addition, the power connection structure 211 is supplied with high-voltage power, which results in a large amount of heat generation in the power connection structure 211. The power connection structure 211 is inserted through the opening 102, so that the two ends of the power connection structure 211 are located in the first cavity 101a and the second cavity 101b respectively. Thus, the heat generated by the power connection structure 211 can be transferred to the opposite sides of the box 10 respectively, so that the heat of the power connection structure 211 can be dissipated more dispersedly, which can further improve the heat dissipation efficiency of the control box 100. It can also prevent the heat generated by the power connection structure 211 from concentrating in one place, and avoid the local temperature of the control box 100 from exceeding the tolerable limit due to excessive heat in one cavity.

[0093] Please see Figures 5 to 8 The filter assembly 22 includes a filter plate 221 and a common mode inductor 222 connected to the filter plate 221. At least a portion of the heat dissipation boss 31 protrudes toward the common mode inductor 222 to absorb the heat of the common mode inductor 222.

[0094] It should be noted that the common mode inductor 222 is also a component with high heat generation on the circuit module 20. In this embodiment, the heat dissipation boss 31 can protrude toward the common mode inductor 222 so that the heat dissipation boss 31 can better absorb the heat of the common mode inductor 222, thereby improving the heat dissipation efficiency.

[0095] In this embodiment, the side of the filter board 221 on which the power components are mounted faces the inside of the housing 10, so that the common mode inductor 222 can be in close contact with the housing 10 for heat dissipation. Other components on the filter board 221 can also be closer to the housing 10. The housing 10 may include a cold plate body 11, which has a heat dissipation channel inside. Heat dissipation through the cold plate body 11 can improve the heat dissipation effect of the common mode inductor 222. In addition, the connection point between the common mode inductor 222 and the filter board 221 is also a high heat point. By protruding the heat dissipation protrusion 31 on the cover 30 toward the common mode inductor 222, heat dissipation can be achieved at the connection point between the common mode inductor 222 and the filter board 221. This can achieve effective heat dissipation both before and after the filter assembly, and can further improve the heat dissipation efficiency of the control box 100.

[0096] Please see Figures 5 to 8 The drive assembly 23 includes a drive board 231, an electrical connection structure passing through the opening 102, one end of the electrical connection structure 211 being electrically connected to the filter board 221, and the other end of the electrical connection structure being electrically connected to the drive board 231.

[0097] Optionally, the drive board 231 and the filter board 221 are located on opposite sides of the thickness direction of the housing 10, and the power connection structure 211 is inserted through the opening 102 on the housing 10, so that the opposite ends of the power connection structure 211 can be located on opposite sides of the housing 10. One end of the power connection structure 211 is electrically connected to the filter board 221, and the other end of the power connection structure 211 is electrically connected to the drive board 231. Thus, the heat generated at the connection between the power connection structure 211 and the filter board 221, and the heat generated at the connection between the power connection structure 211 and the drive board 231, can be transferred to opposite sides of the housing 10, so that the heat can be dissipated more dispersedly, which can further improve the heat dissipation efficiency of the electrical control box 100.

[0098] Please see Figures 5 to 8 In some embodiments, the power connection structure 211 includes an insulating base 2111 and a power connection post 2112. The insulating base 2111 is installed at the opening 102, and the power connection post 2112 is disposed on the insulating base 2111 and passes through the opening 102. The two ends of the power connection post 2112 are respectively connected to the drive assembly 23 and the filter assembly 22. The power connection post 2112 can be correspondingly arranged with the heat dissipation boss 31, so that the heat generated by the power connection post 2112 can be transferred to the heat dissipation boss 31. The heat dissipation boss 31 can quickly transfer the heat outward, thereby improving the heat dissipation efficiency of the control box 100.

[0099] In this embodiment, multiple snap-fit ​​slots are spaced apart on the inner wall of the opening 102. The insulating seat 2111 includes a snap-fit ​​part that fits into the snap-fit ​​slot. By snapping the snap-fit ​​part into the snap-fit ​​slot, the insulating seat 2111 is securely installed at the opening 102. In other embodiments, the insulating seat 2111 can also be installed at the opening 102 by riveting, bonding, or other methods. The insulating seat 2111 serves as insulation, preventing current leakage or short circuits and ensuring electrical safety.

[0100] The contact post 2112 is mounted on the insulating base 2111. The contact post 2112 can be fixed to the insulating base 2111 by crimping, welding, or injection molding to form a single unit with the insulating base 2111 during molding. In other words, the insulating base 2111 provides fixation and support for the contact post 2112, maintaining its connection stability and preventing loosening due to vibration or other reasons. The contact post 2112 extends axially along the thickness direction of the housing 10, passing through the opening 102, and connects to the drive assembly 23 and the filter assembly 22 at both ends. The contact post 2112 is typically made of conductive material, such as copper or copper alloy, effectively conducting current to transmit electrical signals and ensure normal circuit operation.

[0101] Multiple electrical terminals 2112 are provided, arranged side by side and corresponding to the heat dissipation protrusion 31, i.e., arranged along the left and right direction of the box 10. All electrical terminals 2112 are installed on the insulating base 2111. Multiple electrical terminals 2112 can disperse the current, preventing individual electrical terminals 2112 from overheating or being damaged due to excessive current, thereby extending the service life of the electrical terminals 2112. In addition, multiple electrical terminals 2112 can also distribute the generated heat to the heat dissipation protrusion 31, preventing heat from concentrating in one place on the heat dissipation protrusion 31. The heat dissipation protrusion 31 can quickly transfer the heat generated by multiple electrical terminals 2112 to the box cover 30, and then dissipate heat to the outside from the box cover 30, which can further improve the heat dissipation efficiency of the electrical control box 100.

[0102] Please see Figure 5 , Figure 6 as well as Figure 8In some embodiments, the box body 10 includes a cold plate body 11 and a surrounding plate 12 connected to the cold plate body 11. The surrounding plate 12 is arranged around one side of the cold plate body 11. The box cover 30 also includes a first cover 34 and a second cover 35. The first cover 34 and the second cover 35 are respectively located on opposite sides of the cold plate body 11, and the first cover 34 and / or the second cover 35 are provided with the heat dissipation protrusion 31. The first cover 34 is sealed and closed on the side of the cold plate body 11 away from the surrounding plate 12 to form a first cavity 101a, and the second cover 35 is sealed and closed on the side of the surrounding plate 12 away from the cold plate body 11 to form a second cavity 101b.

[0103] In this embodiment, the cold plate body 11 is the main part of the box body 10. The cold plate body 11 can be made of a material with good thermal conductivity, such as aluminum alloy. The cold plate body 11 can be designed with a structure with internal heat dissipation channels. The heat dissipation channels can be straight or curved, used to guide the flow of heat exchange medium, such as air or liquid, that is, to remove heat by air cooling or water cooling.

[0104] The first cover 34 and the second cover 35 are both cover-shaped structures with an opening 102 on one side. The first cover 34 and the second cover 35 can be respectively disposed on opposite sides of the cold plate body 11, that is, along the thickness direction of the cold plate body 11. The first cover 34 is disposed on the side of the cold plate body 11 away from the surrounding plate 12 and is sealed with the cold plate body 11 to form a first cavity 101a. The first cavity 101a is used to install and accommodate the filter assembly 22. The second cover 35 is disposed on the side of the surrounding plate 12 away from the cold plate body 11 and is sealed with the surrounding plate 12 to form a second cavity 101b. The second cavity 101b is used to install and accommodate the drive assembly 23. The first cover 34 and the second cover 35, through their tight fit with the box body 10, can effectively prevent external pollutants such as dust and moisture from entering the interior of the first cavity 101a and the second cavity 101b.

[0105] The cold plate body 11 can serve as the cavity wall for constructing the first cavity 101a and the second cavity 101b, thereby more effectively conducting the heat dissipated by the filter component 22 and the drive component 23 installed in the first cavity 101a and the second cavity 101b, increasing the heat exchange area, improving heat dissipation efficiency, and ensuring that the filter component 22 and the drive component 23 remain stable under high load operation.

[0106] Furthermore, the cold plate body 11 is used as the outer shell wall of the box 10. In this way, when the electronic control box 100 is located in the air duct, the airflow in the air duct can quickly flow through the outer wall of the electronic control box 100, thereby fully exchanging heat. This allows for a faster release of the heat generated by the electronic control box 100.

[0107] Understandably, the drive assembly 23 and the filter assembly 22 will generate heat during operation, and the power connection structure 211 is the main heat source. The two ends of the power connection structure 211 face the first cover 34 and the second cover 35 respectively. Both the first cover 34 and the second cover 35 can be provided with heat dissipation protrusions 31. The heat dissipation protrusion 31 on the first cover 34 corresponds to one end of the power connection structure 211, and the heat dissipation protrusion 31 on the second cover 35 corresponds to the other end of the power connection structure 211. Thus, the heat generated by the power connection structure 211 can be dissipated to the heat dissipation protrusions 31 on both sides through its two ends. The heat dissipation protrusions 31 on both sides can quickly dissipate heat to the outside, which can further improve the heat dissipation efficiency of the control box 100.

[0108] 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," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0109] The above description is merely a preferred embodiment of this application and is 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 electric control box, characterized by, include: Box body; Circuit module, including heat-generating components; and The lid is sealed to the box body and cooperates with the box body to form a mounting cavity for accommodating the circuit module. The lid includes a heat dissipation protrusion that protrudes toward the circuit module and is correspondingly disposed with the heat-generating component to absorb the heat of the heat-generating component.

2. The electric control box according to claim 1, wherein The heat dissipation boss includes: A first protrusion, which extends along a first direction; A plurality of second protrusions are distributed along the first direction and connected to the first protrusion; The heating element has multiple components, and the multiple second protrusions are respectively arranged in a one-to-one correspondence with the multiple heating elements.

3. The electrical control box according to claim 2, characterized in that, The second protrusion extends along a second direction, which forms an angle with the first direction.

4. The electrical control box according to claim 2, characterized in that, The first protrusion and the second protrusion are integrally formed.

5. The electrical control box according to claim 2, characterized in that, Both the first protrusion and the second protrusion include heat dissipation material.

6. The electrical control box according to claim 1, characterized in that, The box body includes a heat-dissipating material and is integrally manufactured from the heat-dissipating material.

7. The electrical control box according to claim 1, characterized in that, The electrical control box also includes a heat-conducting component, which is connected to the side of the heat dissipation boss facing the heat-generating component, and the heat-conducting component is used to transfer the heat of the heat-generating component to the heat dissipation boss.

8. The electrical control box according to claim 7, characterized in that, The heat-conducting element is in thermal contact with the heat-generating component.

9. The electrical control box according to claim 1, characterized in that, The cover has a reinforcing part that protrudes toward the circuit module.

10. The electrical control box according to claim 9, characterized in that, The reinforcing part is connected to the heat dissipation boss.

11. The electrical control box according to claim 1, characterized in that, The lid has a sealing groove on the side facing the box body. The sealing groove is arranged around the edge of the lid and is provided with a sealing element. The box body covers the opening of the sealing groove to seal the mounting cavity.

12. The electrical control box according to claim 11, characterized in that, The sealing element includes a sealing ring, sealant, or sponge.

13. The electrical control box according to claim 1, characterized in that, The mounting cavity includes a first cavity and a second cavity, the first cavity and the second cavity being arranged at a distance from each other in the thickness direction of the box body, and the box body having an opening communicating with the first cavity and the second cavity; The circuit module further includes a filtering component and a driving component, wherein the filtering component is disposed in the first cavity and the driving component is disposed in the second cavity; The heating element is an electrical connection structure that passes through the opening, and its two ends are electrically connected to the driving component and the filtering component, respectively.

14. The electrical control box according to claim 13, characterized in that, The filtering component includes a filter board and a common-mode inductor connected to the filter board; At least a portion of the heat dissipation protrusion extends toward the common mode inductor to absorb the heat from the common mode inductor.

15. The electrical control box according to claim 14, characterized in that, The driving assembly includes a driving board, and the power connection structure passes through the opening. One end of the power connection structure is electrically connected to the filter board, and the other end of the power connection structure is electrically connected to the driving board.

16. The electrical control box according to claim 13, characterized in that, The power connection structure includes: An insulating base is installed at the opening; and A power connection post is disposed on the insulating base and passes through the opening, with its two ends respectively connected to the drive assembly and the filter assembly; The power contact post is provided in a manner corresponding to the heat dissipation protrusion, so as to transfer the heat of the power contact post to the heat dissipation protrusion.

17. The electrical control box according to claim 13, characterized in that: The box body includes a cold plate body and a surrounding panel connected to the cold plate body, the surrounding panel being arranged around one side of the cold plate body; The box cover also includes a first cover body and a second cover body, the first cover body and the second cover body are respectively located on opposite sides of the cold plate body, and the first cover body and / or the second cover body are provided with the heat dissipation protrusion; The first cover is sealed to the side of the cold plate body facing away from the enclosure to form the first cavity, and the second cover is sealed to the side of the enclosure away from the cold plate body to form the second cavity.

18. 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 17, wherein the electrical control box is disposed within the housing.

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