Connector, electric control device and heating and ventilation equipment

Abstract

The utility model discloses a connector, an electric control device and heating and ventilation equipment, the connector comprises an insulating seat, a limiting sleeve and a power connection column, the insulating seat comprises a seat body part and a limiting part connected with the seat body part, and the seat body part is arranged in a shell. The limiting sleeve is arranged on the seat body part in a sleeving mode, and the limiting sleeve and the limiting part are matched to clamp the installation environment of the electric control device so that the connector can be fixed in the shell. The power connection column is arranged in the base body part, and the two ends of the power connection column are connected between the first circuit module and the second circuit module respectively so that the first circuit module and the second circuit module can be electrically connected and arranged in a stacked mode. Thus, the insulating seat and the power connection columns of the connector can be installed in the shell in advance, the connecting position in the connector is limited through the insulating seat, and an operator only needs to make the first circuit module and the second circuit module be in butt joint with the two power connection protruding parts, so that the wiring process can be completed. Therefore, the wiring difficulty of the electric control device of the heating and ventilation equipment is reduced, and the error rate is low.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, and in particular to a connector, an electrical control device, 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 normal operation of various electrical appliances. To protect it, the control board is usually housed in a box, which is called the electrical control unit. The electrical control unit generally consists of three main modules: a control module, a power supply module, and a communication module. In related technologies, multiple modules are typically connected by wires. The wiring of these wires requires multiple steps, including cutting, stripping, soldering, and securing, making the wiring of the HVAC equipment's electrical control unit quite complex. Utility Model Content

[0004] This application provides a connector, an electrical control device, and a heating and ventilation system, which can reduce the planar area occupied by the electrical control device.

[0005] In a first aspect, embodiments of this application provide a connector for use in an electronic control device. The electronic control device includes a housing and a first circuit module and a second circuit module disposed within the housing. The connector includes:

[0006] An insulating base includes a base body and a limiting part connected to the base body, the base body being disposed within a housing;

[0007] A limiting sleeve is fitted onto the base portion, and the limiting sleeve and the limiting portion cooperate to clamp the mounting environment of the electronic control device, thereby fixing the connector inside the housing; and

[0008] A power connector is installed inside the base body, and the two ends of the power connector are respectively connected between the first circuit module and the second circuit module to electrically connect the first circuit module and the second circuit module.

[0009] In some embodiments, a locking protrusion is provided on one of the inner wall surface of the limiting sleeve and the outer wall surface of the seat, and a locking groove is provided on the other of the inner wall surface of the limiting sleeve and the outer wall surface of the seat, with the locking protrusion embedded in the locking groove.

[0010] In some embodiments, the limiting sleeve has a limiting cavity and an installation notch communicating with the limiting cavity. The installation notch is configured to allow the seat body to be inserted into the limiting cavity and to allow the card protrusion to be embedded in the card slot.

[0011] In some embodiments, both the card protrusion and the card slot extend circumferentially along the base portion.

[0012] In some embodiments, the housing has a first opening, the seat portion passes through the first opening, and the limiting sleeve and the limiting portion cooperate to clamp the housing;

[0013] An anti-rotation protrusion is provided on one of the outer wall surface of the base and the inner wall surface of the first opening, and an anti-rotation groove is provided on the other of the outer wall surface of the base and the inner wall surface of the first opening. The anti-rotation groove extends along the insertion direction of the insulating base, and the anti-rotation protrusion is inserted into the anti-rotation groove.

[0014] In some embodiments, anti-rotation protrusions are provided on the outer wall surface of the base portion;

[0015] The anti-rotation protrusion is connected to the limiting part, and the anti-rotation protrusion is located between the limiting part and the limiting sleeve and extends along the length direction of the electrical contact post.

[0016] In some embodiments, the power connection post has two connected power connection ends, each power connection end having a power connection protrusion at its end, each power connection protrusion protruding radially from the periphery of the power connection post, and the two power connection protrusions being respectively connected between the first circuit module and the second circuit module.

[0017] In some embodiments, each contact protrusion is arranged in a ring shape.

[0018] In some embodiments, each power-connecting protrusion has a power-connecting plane on its end face, and the two power-connecting planes are respectively attached to the first circuit module and the second circuit module.

[0019] In some embodiments, the two electrical contact protrusions cooperate to clamp the two ends of the base body.

[0020] In some embodiments, the base portion is provided with a mounting through hole, the power connection post passes through the mounting through hole, and both power connection ends and two power connection protrusions are partially exposed outside the mounting through hole.

[0021] In some embodiments, the two ends of the base portion along the length direction are respectively provided with mounting grooves communicating with mounting through holes, the two mounting grooves correspond one-to-one with two electrical contact protrusions, and each electrical contact protrusion is partially embedded in the corresponding mounting groove.

[0022] In some embodiments, the inner wall of the mounting through hole is provided with a first anti-rotation structure, and the power contact post is provided with a second anti-rotation structure located within the mounting through hole. The second anti-rotation structure is matched with the first anti-rotation structure to limit the rotation of the power contact post relative to the insulating seat.

[0023] In some embodiments, the first anti-rotation structure includes a plurality of first limiting ribs, which are arranged sequentially at intervals around the circumference of the electrical contact post, and each first limiting rib extends along the axial direction of the electrical contact post.

[0024] The second anti-rotation structure includes multiple second limiting ribs, which are arranged sequentially at intervals around the circumference of the electrical contact post, and each second limiting rib extends along the axial direction of the electrical contact post.

[0025] Multiple second limiting ribs are arranged alternately with multiple first limiting ribs.

[0026] In some embodiments, the connector further includes two connectors, with two electrical contact protrusions corresponding one-to-one with the two connectors;

[0027] One of the connectors is connected to the corresponding power-contacting protrusion and together they clamp the first circuit module;

[0028] Another connector is attached to the corresponding power-connecting protrusion and together they clamp the second circuit module.

[0029] In some embodiments, each connector includes a connecting portion and a clamping portion connected to each other; wherein an electrical contact protrusion is threaded to the corresponding connecting portion and cooperates with the corresponding clamping portion to clamp the first circuit module.

[0030] Another power-connecting protrusion is threaded to the corresponding connecting part and cooperates with the corresponding clamping part to clamp the second circuit module.

[0031] In some embodiments, the terminal post is a conductive copper rod.

[0032] In some embodiments, there are multiple electrical terminals and multiple base portions. The periphery of the multiple base portions is connected in sequence, and the multiple electrical terminals correspond one-to-one with the multiple base portions. Each electrical terminal passes through the corresponding base portion.

[0033] The limiting sleeve and the limiting part are provided on at least one base part.

[0034] In some embodiments, there are multiple limiting sleeves, each of which corresponds to a multiple seat portion. The multiple limiting sleeves are spaced apart, and each limiting sleeve is sleeved on the corresponding seat portion.

[0035] The limiting part is arranged around the periphery of multiple seat parts.

[0036] Secondly, embodiments of this application provide an electronic control device, comprising:

[0037] case;

[0038] Both the first circuit module and the second circuit module are housed within the casing;

[0039] In any of the above embodiments, the two ends of the connector are respectively connected between the first circuit module and the second circuit module to electrically connect the first circuit module and the second circuit module.

[0040] In some embodiments, the housing is provided with 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, wherein the portion of the housing located between the first cavity and the second cavity is provided with a first opening, the first opening communicating with the first cavity and the second cavity;

[0041] A first circuit module and a second circuit module are disposed in a first cavity.

[0042] The base part passes through the first opening, and the limiting sleeve and the limiting part cooperate to clamp the shell.

[0043] In some embodiments, the housing includes a heat dissipation structure, a first cover, and a second cover. The first cover cooperates with the heat dissipation structure to form a first cavity, and the second cover cooperates with the heat dissipation structure to form a second cavity.

[0044] The heat dissipation structure has a first side and a second side, the first cavity and the second cavity are located on the first side and the second side of the heat dissipation structure respectively, and the heat dissipation structure is provided with a first opening;

[0045] The limiting sleeve and the limiting part work together to clamp the heat dissipation structure.

[0046] In some embodiments, the first circuit module includes a first circuit board and a second circuit board, wherein the first circuit board is a filter board and the second circuit board is a driver board.

[0047] In some embodiments, the electronic control device further includes:

[0048] The third circuit board is located inside the housing and has a second opening. The insulating base and the power connection post both pass through the second opening.

[0049] Thirdly, embodiments of this application provide a heating, ventilation, and air conditioning (HVAC) device, including a housing and an electrical control device as described in any of the above embodiments, wherein the electrical control device is disposed within the housing.

[0050] In some embodiments, the housing is provided with an access port; the electronic control device is located at the access port.

[0051] This application provides a connector, electrical control device, and HVAC equipment. The connector includes an insulating base, a limiting sleeve, and electrical contacts. The insulating base includes a base body and a limiting part connected to the base body, with the base body disposed within a housing. The limiting sleeve is fitted onto the base body, and the limiting sleeve and the limiting part cooperate to clamp the installation environment of the electrical control device, thereby fixing the connector within the housing. The electrical contacts are disposed within the base body, and both ends of the electrical contacts are respectively connected between a first circuit module and a second circuit module to electrically connect the first and second circuit modules. Thus, compared to electrical control devices in related technologies, the insulating base and electrical contacts of the connector in this application can be pre-installed within the housing. The insulating base defines the connection position within the connector, and the operator only needs to align the first and second circuit modules with the two electrical contacts to complete the wiring process. This helps reduce the wiring difficulty of the electrical control device in HVAC equipment and also lowers the error rate. Furthermore, the connector of this application can be connected between the first circuit module and the second circuit module respectively through the two electrical contact protrusions of the electrical contact post, which helps to shorten the physical distance between the first circuit module and the second circuit module, thereby helping to reduce the length of the electrical contact post itself and thus saving manufacturing materials. Moreover, the connector of this application is connected between the first circuit module and the second circuit module respectively through the two ends of the electrical contact post, so that the connector, the first circuit module and the second circuit module do not need to be set on the same plane, which helps to make the design of the electrical control device of HVAC equipment more three-dimensional and miniaturized. At the same time, both ends of the electrical contact post are provided with radially protruding electrical contact protrusions, which help to increase the contact area between the electrical contact post and the first circuit module and the second circuit module, thereby enabling the connector to be stably connected to the first circuit module and the second circuit module. Meanwhile, the limiting sleeve and the limiting part cooperate to clamp the installation environment of the electrical control device to fix the connector in the housing, thereby helping to reduce the risk of the connector loosening on the electrical control device and helping the operator to quickly and accurately connect the first circuit module, the second circuit module and the electrical contact post. Attached Figure Description

[0052] 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.

[0053] Figure 1 This is a schematic diagram showing a partial structure of a heating, ventilation, and air conditioning (HVAC) device according to an embodiment of this application, revealing an access opening.

[0054] Figure 2 This is a schematic diagram of an electronic control device according to an embodiment of this application;

[0055] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the central electronic control device;

[0056] Figure 4 for Figure 3 A structural diagram of the disassembled structure of the central electronic control device from another perspective;

[0057] Figure 5 This is a schematic diagram of the heat dissipation structure and connector assembly according to an embodiment of this application;

[0058] Figure 6 for Figure 5 A schematic diagram of part of the central electronic control device from another perspective;

[0059] Figure 7 This is a schematic diagram of the connector structure according to an embodiment of this application;

[0060] Figure 8 This is a schematic diagram of the heat dissipation structure and connector assembly according to another embodiment of this application;

[0061] Figure 9 This is a schematic diagram of the connector structure according to an embodiment of this application;

[0062] Figure 10 for Figure 9 sectional view along line AA;

[0063] Figure 11 for Figure 9 A schematic diagram of part of the connector structure;

[0064] Figure 12 for Figure 11 A schematic diagram of the exploded structure of the connector;

[0065] Figure 13 for Figure 8 A schematic diagram of the heat dissipation structure in the middle;

[0066] Figure 14 for Figure 13 Enlarged schematic diagram at point XV.

[0067] Explanation of icon numbers:

[0068] 10. Outdoor unit; 20. Housing; 20a. Inspection port; 30. Electrical control device; 40. Connector; 100. Housing; 101. First cavity; 102. Second cavity; 110. Heat dissipation structure; 111. First side; 112. Second side; 113. First opening; 114. Anti-rotation groove; 120. First cover; 130. Second cover; 210. First circuit module; 211. First circuit board; 220. Second circuit module; 221. Second circuit board; 300. Insulating base; 301. Mounting port 302. Hole; 310. Mounting groove; 311. First anti-rotation structure; 311. First limiting rib; 320. Seat part; 321. Slot; 322. Anti-rotation protrusion; 323. Limiting part; 400. Electrical contact post; 410. Electrical contact end; 420. Electrical contact protrusion; 421. Electrical contact plane; 430. Second anti-rotation structure; 431. Second limiting rib; 500. Limiting sleeve; 510. Slot protrusion; 520. Limiting cavity; 530. Mounting notch; 600. Connector; 610. Connecting part; 620. Clamping part;

[0069] 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

[0070] 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.

[0071] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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 10, forming a refrigerant circuit so that the refrigerant can circulate. Figure 1 The diagram shows the outdoor unit 10 of the air conditioning system. The outdoor unit 10 has a casing 20, 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, a blower fan is installed in the outdoor unit 10.

[0076] Furthermore, the outdoor unit 10 also includes an electrical control device 30, which can be box-shaped. The housing 20 is the external structure of the outdoor unit 10, protecting internal components, providing a mounting base, and optimizing airflow. The housing 20 can be made of metal or high-strength plastic, possessing good mechanical strength and corrosion resistance. The housing 20 can be cuboid and placed on the roof or ground. The housing 20 isolates internal live components from the outside environment, preventing direct contact by users and reducing the occurrence of electric shock and other safety accidents. The electrical control device 30 is the core control component of the HVAC equipment. Installed inside the housing 20, it facilitates maintenance and replacement, and also streamlines the installation and layout of the overall HVAC structure. The electrical control device 30 is responsible for precisely controlling the operation of the HVAC equipment. It is equipped with various control circuits and uses various electronic components and wiring to control the HVAC equipment's start-up, stop, temperature adjustment, mode switching, and other operations.

[0077] The housing 20 provides protection for the electronic components within the electronic control device 30, preventing dust, moisture, oil, and other external impurities from entering. It also protects the device from extreme environmental conditions (such as temperature, humidity, and chemical corrosion), ensuring normal operation in various environments and extending the device's lifespan. Since the electronic control device 30 contains high-voltage circuits and live components, housing it within the housing 20 prevents accidental contact, reduces the risk of electric shock, and improves safety. Furthermore, the housing 20 acts as a shield, reducing external electromagnetic interference to the electronic components within the device, thus ensuring the stability and reliability of the control system.

[0078] In this embodiment, the housing 20 is rectangular, and the electronic control device 30 has a length direction, which is arranged along the height direction (i.e., the vertical direction) of the housing 20. Therefore, the internal structure of the electronic control device 30 has a vertical arrangement. This vertical length arrangement can better meet the overall structural layout requirements of the equipment when the housing 20 has a large height and limited horizontal space, and is also conducive to heat dissipation and maintenance.

[0079] It should be noted that the present invention is not limited to the arrangement of the electronic control device 30 along the height direction of the housing 20 in the above embodiments. In other embodiments, the electronic control device 30 may also be arranged along the length direction of the housing 20, or the electronic control device 30 may also be arranged along the width direction of the housing 20. Furthermore, the electronic control device 30 may not be a single form extending along the length direction; it may also vary according to the internal space of the housing 20, for example, it may be configured as an approximate "U" shape, or a similar "U" shape.

[0080] In some embodiments, an air duct is formed within the housing 20. This air duct guides air to flow along a predetermined path, preventing disordered airflow within the housing 20 and thus improving heat dissipation efficiency. Specifically, Figure 1 As exemplarily shown, the air supply fan is located at the top of the housing 20, that is, at the top of the air duct, and blows air upwards. Furthermore, the electronic control device 30 is located inside the air duct, so that the airflow within the air duct can carry away the heat generated by the electronic control device 30, ensuring the heat dissipation effect of the electronic control device 30.

[0081] Please continue reading. Figure 1In some embodiments, the housing 20 is provided with an access port 20a. In one configuration, the housing 20 includes a housing body and an access door rotatably connected to the housing body, allowing maintenance personnel to expose the access port 20a by opening the access door. In another configuration, the housing 20 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 20a. This application does not impose specific limitations on the manner in which the access port 20a is exposed.

[0082] The electronic control device 30 is located at the access port 20a, allowing maintenance personnel to quickly access it without having to extend excessively into the housing 20, thus greatly improving the efficiency of maintenance and repair.

[0083] Please see Figure 2 In some embodiments, the electronic control device 30 includes a housing 100 and a drive frequency converter assembly. The housing 100 is the main structure of the electronic control device 30, and the drive frequency converter assembly is disposed inside the housing 100. The drive frequency converter assembly is housed within the drive frequency converter cavity, meaning that the housing 100 serves to support and protect the internal drive frequency converter assembly, preventing it from shifting or being damaged due to external vibration or collision during use. By using the housing 100, components such as the drive frequency converter cavity are integrated into a unified structure, which facilitates the overall design and assembly of the electronic control device 30, and makes production and maintenance easier.

[0084] Please see Figures 2 to 4In some embodiments, the drive frequency converter assembly includes a first circuit module 210 and a second circuit module 220. The drive frequency converter cavity includes a first cavity 101 and a second cavity 102. Understandably, the housing 100 is a frame structure with a certain thickness. The first cavity 101 and the second cavity 102 are arranged relatively spaced apart in the thickness direction of the housing 100, that is, a portion of the housing 100 separates the first cavity 101 and the second cavity 102. By setting the first cavity 101 and the second cavity 102, the partitioned layout of different functional modules is realized. For example, different functional circuit modules can be arranged in the first cavity 101 and the second cavity 102. In this embodiment, the first circuit module 210 is disposed within the first cavity 101, and the second circuit module 220 is disposed within the second cavity 102. The thickness direction of the first circuit module 210 and the second circuit module 220 is consistent with the thickness direction of the housing 100. When viewed from the thickness direction of the housing 100 (i.e., from one side to the other), the first circuit module 210 and the second circuit module 220 are arranged sequentially along the thickness direction of the housing 100, rather than being placed horizontally or diagonally. This layout allows the first circuit module 210 and the second circuit module 220 to fully utilize the space of the housing 100 in the thickness direction, making reasonable use of the internal space of the electronic control device 30 and resulting in a more compact overall structure. This design can achieve more functions within a limited space and is suitable for applications with high space requirements.

[0085] In some embodiments, the housing 100 includes a heat dissipation structure 110 and a cover. The cover is sealingly connected to the heat dissipation structure 110 to form a first cavity 101 and a second cavity 102. Specifically, the cover includes a first cover 120 and a second cover 130. The heat dissipation structure 110 is the main body of the housing 100, and a portion of the heat dissipation structure 110 can be made of a material with good thermal conductivity, such as aluminum alloy. The heat dissipation structure 110 can be designed with internal heat dissipation channels. The heat dissipation channels 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 cover 120 and the second cover 130 are both cover-shaped structures with an opening on one side. The first cover 120 and the second cover 130 can be respectively disposed on the front and rear sides of the heat dissipation structure 110, that is, along the thickness direction of the shell 100. The first cover 120 is disposed on the heat dissipation structure 110 and cooperates with the heat dissipation structure 110 to form the first cavity 101. The first cavity 101 is used to install and accommodate the first circuit module 210. The second cover 130 is disposed on the heat dissipation structure 110 and cooperates with the heat dissipation structure 110 to form the second cavity 102. The second cavity 102 is used to install and accommodate the second circuit module 220. The first cover 120 and the second cover 130, through their tight cooperation with the heat dissipation structure 110, can effectively prevent external pollutants such as dust and moisture from entering the interior of the first cavity 101 and the second cavity 102.

[0086] The heat dissipation structure 110 can serve as part of the cavity wall of the first cavity 101 and the second cavity 102, thereby more effectively conducting the heat dissipated by the first circuit module 210 and the second circuit module 220 installed in the first cavity 101 and the second cavity 102, increasing the heat exchange area, improving heat dissipation efficiency, and ensuring that the first circuit module 210 and the second circuit module 220 remain stable under high load operation.

[0087] Furthermore, the heat dissipation structure 110 is used as part of the cavity wall of the first cavity 101 and the second cavity 102. That is, the heat dissipation structure 110 directly participates in the formation of the outer shell wall of the housing 100. In this way, when the electronic control device 30 is located in the air duct, the airflow in the air duct can quickly flow through the outer wall surface of the electronic control device 30, thereby fully exchanging heat. This allows for a faster release of the heat generated by the electronic control device 30.

[0088] Understandably, the first circuit module 210 and the second circuit module 220 generate heat during operation. At least one side of each module faces the heat dissipation structure 110. Since the thickness direction of the first and second circuit modules 210 is consistent with the thickness direction of the housing 100, the side facing the heat dissipation structure 110 is usually the larger side of the first and second circuit modules 210. The heat from these sides is mainly transferred to the heat dissipation structure 110 through thermal conduction, and then dissipated to the external environment through the heat dissipation function of the heat dissipation structure 110. Through the thermal conduction and convection heat dissipation functions of the heat dissipation structure 110, the heat generated by the first and second circuit modules 210 can be quickly removed, maintaining the internal temperature of the electronic control device 30 within a reasonable range. The sides of the first and second circuit modules 210 that face away from the heat dissipation structure 110 face the first cover 120 and the second cover 130, respectively. These sides can dissipate heat to the surrounding environment through radiation. This comprehensive heat dissipation strategy not only improves the efficiency of heat transfer, but also ensures the stability and reliability of the equipment during long-term operation.

[0089] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6 For the sake of brevity in the attached images, Figure 5 and Figure 6Only the main plate structure is shown. The heat dissipation structure 110 has a first side 111 and a second side 112, namely the front and rear sides of the heat dissipation structure 110 along the thickness direction of the housing 100. The first cavity 101 and the second cavity 102 are located on the first side 111 and the second side 112 of the heat dissipation structure 110, respectively. The first cover 120 and the second cover 130 can be tightly fitted to the heat dissipation structure 110 by screws, clips, or other fixing devices to form two relatively independent first cavities 101 and second cavities 102. The heat generation and heat dissipation requirements of the first circuit module 210 and the second circuit module 220 may be different. By placing them in independent cavities, customized designs can be made according to the specific heat dissipation requirements of the first circuit module 210 and the second circuit module 220. It also effectively avoids heat cross-interference between the first circuit module 210 and the second circuit module 220, ensuring that the first circuit module 210 and the second circuit module 220 each have better matching heat dissipation settings, thereby improving the heat dissipation efficiency of the entire electronic control device 30.

[0090] The portion of the housing 100 located between the first cavity 101 and the second cavity 102 is provided with a first opening 113 (see...). Figure 13 The first opening 113 is provided on the part of the shell 100 that separates the first cavity 101 and the second cavity 102, and the first opening 113 connects the first cavity 101 and the second cavity 102.

[0091] The electronic control device 30 also includes a connector 40, which can electrically connect the first circuit module 210 and the second circuit module 220.

[0092] Connector 40 passes through the first opening 113 and connects to the first circuit module 210 and the second circuit module 220 at both ends, respectively, to electrically connect the first circuit module 210 and the second circuit module 220. The arrangement of the first opening 113 and connector 40 simplifies the connection between circuits and reduces the complexity and length of internal wiring. Although the first circuit module 210 and the second circuit module 220 are electrically connected through connector 40, they still maintain a certain degree of physical isolation, which helps to maintain their respective operating environments, such as temperature, vibration, and contamination.

[0093] By providing a first opening 113 and a connector 40 inside the housing 100, the connection between the first circuit module 210 and the second circuit module 220 can be completed inside the housing 100 without the need for external wiring. This reduces the need for external wiring between the first circuit module 210 and the second circuit module 220, making the overall layout of the electronic control device 30 simpler. Furthermore, due to the reduction in external wiring, the number and size of the wiring holes in the housing 100 can be reduced accordingly, which helps improve the sealing performance of the housing 100, thereby better protecting the internal circuit modules from the intrusion of dust, moisture, and other contaminants.

[0094] Since the first circuit module 210 and the second circuit module 220 in the first cavity 101 and the second cavity 102 have relatively independent functions and are connected by the connector 40, this cavity design makes the internal functional division of the electronic control device 30 clearer, which is convenient for management and maintenance. When it is necessary to maintain or repair a certain circuit module, the problem can be located more quickly, reducing the impact on the other circuit module and improving maintenance efficiency.

[0095] Furthermore, the first circuit module 210 and the second circuit module 220 are located in independent cavities and are electrically connected via connector 40. Their main bodies are isolated by housing 100. This layout effectively reduces signal interference between the first circuit module 210 and the second circuit module 220. In the electronic control device 30, signal interference is one of the important causes of equipment instability and malfunction. The cavity design significantly reduces this interference and improves the reliability of the electronic control device 30.

[0096] Among them, such as Figure 13 As shown in the attached diagram, for the sake of brevity, Figure 13 Only the main board structure is shown. The heat dissipation structure 110 has a first opening 113, which can be positioned in the middle of the structure. The connector 40 can pass directly through the heat dissipation structure 110 with a shorter path, connecting the first circuit module 210 and the second circuit module 220 within the first cavity 101 and the second cavity 102. This design not only reduces the length of the connector 40 and lowers material costs, but also reduces signal transmission losses, improving the efficiency and stability of the electrical connection. Because the connector 40 has the shortest path, the internal space of the electronic control device 30 can be utilized more efficiently, reserving more space for other electronic components or functional modules.

[0097] In some embodiments, the first circuit module 210 includes a first circuit board 211 and a second circuit board 221, wherein the first circuit board 211 is a filter board and the second circuit board 221 is a driver board.

[0098] The driver board is typically used to implement the main functions of the electronic control device 30, such as control and drive. In this embodiment, the driver board is located within the first cavity 101. The second circuit module 220 is a filter board, which is used to filter high-frequency noise in the power supply, smooth DC voltage, and suppress electromagnetic interference, that is, to filter the electrical signal, remove noise and interference, and ensure the purity of the electrical signal. In this embodiment, the filter board is located within the second cavity 102. Continuing from the above, the driver board is located on the side facing the inspection port 20a, and the filter board is located on the side away from the inspection port 20a. The driver board typically integrates multiple functional circuits. For example, the insulated-gate bipolar transistor (IGBT) commonly found in driver boards is a device with a high failure rate. Due to the complexity and high failure rate of the driver board, it requires more frequent maintenance. Therefore, placing it on the side facing the inspection port 20a makes it easier for maintenance personnel to maintain. Compared to the driver board, the filter board has a relatively low failure rate. Common problems are mostly related to electrical parameter adjustment or mechanical connection issues, which are relatively easy to solve, thus requiring less frequent maintenance. Furthermore, the heat generated by the driver board is higher than that of the driver board. Therefore, when the filter board is located on the back side, it can more effectively utilize the airflow of the air duct to remove the corresponding heat, resulting in better heat dissipation efficiency.

[0099] From a heat dissipation perspective, the filter board is located in the first cavity 101, while the drive board is located in the second cavity 102. This compartmentalized design avoids heat accumulation in a single cavity. A portion of the heat dissipation structure 110 forms a shared cavity wall between the first cavity 101 and the second cavity 102. This cavity wall not only serves as a physical separator but also acts as a heat conduction channel. Specifically, the material and structural design of the cavity wall allow heat to be efficiently conducted from higher-temperature components (such as the drive board) to the heat dissipation structure 110, thereby achieving rapid heat dissipation. This design not only effectively avoids localized overheating caused by heat accumulation but also further optimizes the heat dissipation performance of the entire electronic control device 30 by rationally distributing heat, ensuring the stability and reliability of the drive board and filter board during long-term operation.

[0100] Please see Figure 9 and Figure 10The connector 40 includes an insulating base 300, a limiting sleeve 500, and a contact post 400. The insulating base 300 includes a base portion 320 and a limiting portion 323 connected to the base portion 320, and the base portion 320 is disposed on the housing 100. The limiting sleeve 500 is sleeved on the base portion 320, and the limiting sleeve 500 and the limiting portion 323 cooperate to clamp the installation environment of the electronic control device 30 to fix the connector 40 inside the housing 100. The contact post 400 is disposed inside the base portion 320, and both ends of the contact post 400 are respectively connected between the first circuit module 210 and the second circuit module 220 to electrically connect the first circuit module 210 and the second circuit module 220. Thus, compared to the electrical control devices in related technologies, the insulating base 300 and the power contact post 400 of the connector 40 can be pre-installed in the housing 100 to define the connection position within the connector 40 through the insulating base 300. The operator only needs to mate the first circuit module 210 and the second circuit module 220 with the two power contact protrusions 420 to complete the wiring process, thereby helping to reduce the wiring difficulty of the electrical control device 30 of the HVAC equipment and also reducing the error rate.

[0101] Furthermore, the connector 40 of this application can be connected between the first circuit module 210 and the second circuit module 220 respectively through the two electrical protrusions 420 of the electrical contact post 400, which helps to shorten the physical distance between the first circuit module 210 and the second circuit module 220, thereby helping to reduce the length of the electrical contact post 400 itself, and thus helping to save the manufacturing materials of the electrical contact post 400.

[0102] Furthermore, the connector 40 of this application is connected between the first circuit module 210 and the second circuit module 220 through the two ends of the contact post 400, respectively. This eliminates the need for the connector 40, the first circuit module 210, and the second circuit module 220 to be disposed on the same plane, which helps to make the design of the electrical control device 30 of the HVAC equipment more three-dimensional and miniaturized. At the same time, both ends of the contact post 400 are provided with radially protruding contact protrusions 420. The contact protrusions 420 help to increase the contact area between the contact post 400 and the first circuit module 210 and the second circuit module 220, thereby enabling the connector 40 to be stably connected to the first circuit module 210 and the second circuit module 220.

[0103] Meanwhile, the limiting sleeve 500 and the limiting part 323 cooperate to clamp the installation environment of the electronic control device 30 to fix the connector 40 in the housing 100, thereby helping to reduce the risk of the connector 40 becoming loose on the electronic control device 30, and helping the operator to quickly and accurately connect the first circuit module 210, the second circuit module 220 and the power terminal 400.

[0104] Specifically, the installation environment can be the heat dissipation structure of the housing 100; or, the installation environment can be the circuit module of the electronic control device; or, the installation environment can be a circuit board of the electronic control device 30.

[0105] Please see Figure 7 and Figure 12 The seat portion 320 can be generally cylindrical or cuboid in shape. The seat can pass through the first opening 113, and the limiting sleeve 500 and the limiting portion 323 cooperate to clamp the housing 100. For example, the limiting sleeve 500 and the limiting portion 323 cooperate to clamp the heat dissipation structure 110. The limiting portion 323 can be a rib structure or a plate support structure.

[0106] The limiting sleeve 500 can be a hollow annular structure, allowing it to be fitted onto the base portion 320. A locking protrusion 510 is provided on one of the inner wall surface of the limiting sleeve 500 and the outer wall surface of the base portion 320, while a locking groove 321 is provided on the other. The locking protrusion 510 is embedded in the locking groove 321, enabling the limiting sleeve 500 to engage with the power contact post 400. This helps reduce the risk of the limiting sleeve 500 detaching from the power contact post 400, and further allows the limiting sleeve 500 and the limiting portion 323 to more stably clamp the main box.

[0107] The limiting sleeve 500 has a limiting cavity 520 and an installation notch 530 communicating with the limiting cavity 520. The installation notch 530 is configured to allow the seat part 320 to be inserted into the limiting cavity 520 and to allow the locking protrusion 510 to be embedded in the locking groove 321. The installation notch 530 provides an open entrance, allowing the seat part 320 to be directly inserted into the limiting cavity 520 through the installation notch 530 under the action of external force, and guiding the locking protrusion 510 to correctly engage with the locking groove 321. The assembly of the limiting sleeve 500 and the seat part 320 can be completed without complicated alignment or additional tools.

[0108] Both the latching protrusion 510 and the latching groove 321 extend circumferentially along the seat portion 320. This helps to increase the contact area between the inner wall surfaces of the latching protrusion 510 and the latching groove 321, making the fit between the latching protrusion 510 and the latching groove 321 more secure. In addition, the larger contact surface can more effectively disperse the stress applied to the latching protrusion 510 and the latching groove 321, reduce local stress concentration, and lower the risk of material fatigue damage.

[0109] Please see Figures 11 to 14The housing 100 has a first opening 113, and the seat portion 320 passes through the first opening 113. The limiting sleeve 500 and the limiting portion 323 cooperate to clamp the housing 100. One of the outer wall surface of the seat portion 320 and the inner wall surface of the first opening 113 is provided with an anti-rotation protrusion 322, and the other of the outer wall surface of the seat portion 320 and the inner wall surface of the first opening 113 is provided with an anti-rotation groove 114. The anti-rotation groove 114 extends along the insertion direction of the insulating seat 300. The anti-rotation protrusion 322 is inserted into the anti-rotation groove 114, which helps to limit the rotation of the insulating seat 300 relative to the main housing, thereby helping to improve the firmness of the connection between the insulating seat 300 and the main housing 100, and making it easier for operators to assemble the first circuit module 210, the second circuit module 220 and the power terminal 400 with screws.

[0110] An anti-rotation protrusion 322 is provided on the outer wall surface of the base portion 320; the anti-rotation protrusion 322 is connected to the limiting portion 323, and the anti-rotation protrusion 322 is located between the limiting portion 323 and the limiting sleeve 500 and extends along the length direction of the power contact post 400. The anti-rotation protrusion 322 has a certain length. In addition to its anti-rotation function, the anti-rotation protrusion 322 also has a guiding function. When the base portion 320 is inserted into the first opening 113, the anti-rotation protrusion 322 can be inserted from the anti-rotation groove 114 and guide the limiting portion 323 to abut against the housing 100, so that the anti-rotation sleeve can quickly clamp the housing 100 with the limiting portion 323.

[0111] The power contact post 400 has two connected power contact ends 410. Each power contact end 410 has a power contact protrusion 420 at its end. Each power contact protrusion 420 protrudes radially from the periphery of the power contact post 400. The two power contact protrusions 420 are respectively connected between the first circuit module 210 and the second circuit module 220. Thus, both ends of the power contact post 400 have radially protruding power contact protrusions 420. The power contact protrusions 420 help to increase the contact area between the power contact post 400 and the first circuit module 210 and the second circuit module 220, thereby enabling the connector 40 to be stably connected to the first circuit module 210 and the second circuit module 220.

[0112] Each contact protrusion 420 is arranged in a ring shape. This ring shape provides 360° omnidirectional contact, ensuring a stable electrical connection in any direction. Even under vibration, shock, or other external interference, the ring-shaped contact protrusion 420 maintains good contact, preventing open circuits or signal interruptions caused by poor local contact.

[0113] Each power-contacting protrusion 420 has a power-contacting plane 421 on its end face. The two power-contacting planes 421 are respectively attached to the first circuit module 210 and the second circuit module 220. By using the power-contacting planes 421 to attach and connect with the first circuit module 210 and the second circuit module 220, for example, by attaching the two power-contacting planes 421 to the first circuit board 211 and the second circuit board 221 respectively, a tighter and flatter connection interface can be achieved. This avoids problems such as signal fluctuations or power transmission interruptions caused by insufficient contact or unstable contact points, thereby improving the reliability and stability of the connector 40 during long-term use.

[0114] The two electrical contact protrusions 420 cooperate to clamp the two ends of the base body 320, thereby restricting the axial movement of the insulating base 300 along the electrical contact post 400, and thus preventing the insulating base 300 from separating from the electrical contact post 400 along the axial direction of the electrical contact post 400.

[0115] Please see Figure 10 and Figure 12 The base 320 is provided with a mounting through hole 301, and the power connection post 400 passes through the mounting through hole 301. The two power connection ends 410 and the two power connection protrusions 420 are exposed outside the mounting through hole 301, so that the insulating base 300 can be fixedly engaged with the power connection post 400.

[0116] The base portion 320 has mounting grooves 302 at both ends along its length, which communicate with the mounting through holes 301. Each mounting groove 302 corresponds to one of the two contact protrusions 420. Each contact protrusion 420 is partially embedded in its corresponding mounting groove 302, allowing the contact post 400 and the insulating base 300 to fit more tightly, thus helping to reduce the size of the connector 40. Furthermore, it also helps to increase the contact area between the contact post 400 and the insulating base 300, allowing the contact post 400 to be more securely positioned within the insulating base 300.

[0117] The inventors discovered that in order to further improve the stability of the connection between the power supply post 400 and the first circuit module 210 and the second circuit module 220, the power supply post 400 is generally connected to the power supply post 400 by bolt thread and together clamp the first circuit module 210 and the second circuit module 220. During the process of bolt thread connection to the power supply post 400, the insulating seat 300 is prone to relative rotation with the power supply post 400, which causes the bolt to not be effectively threaded to the insulating seat 300 during the assembly process.

[0118] Please see Figures 11 to 12The inner wall of the mounting through hole 301 is provided with a first anti-rotation structure 310, and the terminal post 400 is provided with a second anti-rotation structure 430 located within the mounting through hole 301. The second anti-rotation structure 430 and the first anti-rotation structure 310 are mutually restrictive to limit the rotation of the terminal post 400 relative to the insulating seat 300. By providing the first anti-rotation structure 310 on the inner wall of the mounting through hole 301 and the corresponding second anti-rotation structure 430 on the terminal post 400, the mutually restrictive cooperation effectively limits the rotation of the terminal post 400 relative to the insulating seat 300, thereby ensuring that the bolt can be smoothly and securely threaded onto the terminal post 400.

[0119] The first anti-rotation structure 310 includes multiple first limiting ribs 311, which are arranged sequentially at intervals around the circumference of the connecting post 400, and each first limiting rib 311 extends along the axial direction of the connecting post 400. The second anti-rotation structure 430 includes multiple second limiting ribs 431, which are arranged sequentially at intervals around the circumference of the connecting post 400, and each second limiting rib 431 extends along the axial direction of the connecting post 400. The multiple second limiting ribs 431 and the multiple first limiting ribs 311 are arranged alternately. This alternate arrangement design creates a multi-point limiting fit between the first limiting ribs 311 and the second limiting ribs 431, which helps to improve the accuracy and reliability of the first anti-rotation structure 310 and the second anti-rotation structure 430, thereby more effectively limiting the rotation of the connecting post 400 relative to the insulating base 300.

[0120] In other embodiments, the first anti-rotation structure 310 may be one or more keyways (which may be a single long slot or multiple short slots) machined on the inner wall surface of the mounting through hole 301 of the insulating base 300. The direction of the keyways is usually arranged along the axial direction of the contact post 400, but it can also be designed in a spiral shape to increase friction as needed. The second anti-rotation structure 430 may be a matching key (or a protrusion) provided at a corresponding position on the outer surface of the contact post 400. These keys can be precisely inserted into the keyways on the insulating base 300. When the contact post 400 is inserted into the insulating base 300, the fit between the key and the keyway can prevent the contact post 400 from rotating, thereby achieving the anti-rotation function.

[0121] Please see Figure 9 and Figure 10The connector 40 also includes two connectors 600, with two electrical contact protrusions 420 corresponding one-to-one with each connector 600. One connector 600 is connected to the corresponding electrical contact protrusion 420 and together they clamp the first circuit module 210. The other connector 600 is connected to the corresponding electrical contact protrusion 420 and together they clamp the second circuit module 220. The connector 600 can be threaded or plugged into the corresponding electrical contact protrusion 420. Thus, the connector 600 and the electrical contact protrusion 420 work together to firmly fix the first circuit module 210 and the second circuit module 220 by clamping, avoiding loosening of the first and second circuit modules 210 and 220 due to vibration, impact, or changes in the external environment. This ensures tight contact between the electrical contact post 400 and the first and second circuit modules 210 and 220, significantly improving the reliability of the electrical connection.

[0122] Each connector 600 includes a connecting portion 610 and a clamping portion 620 connected to each other; one of the power-contacting protrusions 420 is threadedly connected to the corresponding connecting portion 610 and cooperates with the corresponding clamping portion 620 to clamp the first circuit module 210; the other power-contacting protrusion 420 is threadedly connected to the corresponding connecting portion 610 and cooperates with the corresponding clamping portion 620 to clamp the second circuit module 220. Each power-contacting end 410 and the corresponding power-contacting protrusion 420 cooperate to form a connecting hole. The inner wall of the connecting hole has an internal thread structure, and the connecting portion 610 has an external thread structure. The external thread structure of the connecting portion 610 can be threadedly connected to the internal thread structure of the connecting hole. Thus, the threaded connection method (screw or bolt) between the connecting portion 610 and the power-contacting protrusion 420 has a self-locking characteristic, enabling the equipment to remain stable when subjected to vibration, impact, or other external interference. Meanwhile, the design of the clamping part 620 provides additional mechanical support, forming a robust clamping structure between the power contact protrusion 420 and the circuit module, significantly enhancing the overall connection's vibration resistance, making it particularly suitable for applications in industrial environments or mobile devices.

[0123] Furthermore, the adjustability of the threaded connection between the connecting portion 610 and the power-connecting protrusion 420 allows the distance between the power-connecting protrusion 420 and the clamping portion 620 to be flexibly adjusted according to the thickness of the circuit module. This design provides reliable clamping force for both thinner flexible circuit boards and thicker rigid circuit boards, thus offering greater versatility and adaptability.

[0124] Please see Figure 11 , Figure 12 and Figure 14In some embodiments, the connector 40 includes an insulating base 300 and a contact post 400. The insulating base 300 is installed at a first opening 113. Multiple snap-fit ​​grooves are spaced apart on the inner wall of the first opening 113. The insulating base 300 includes a snap-fit ​​portion adapted to a snap-fit ​​groove 321. By snapping the snap-fit ​​portion into the snap-fit ​​groove, the insulating base 300 is securely installed at the first opening 113 of the heat dissipation structure 110. In other embodiments, the insulating base 300 can also be installed at the first opening 113 by riveting, bonding, or other methods. The insulating base 300 serves as insulation, preventing current leakage or short circuits and ensuring electrical safety. The contact post 400 is disposed on the insulating base 300. The contact post 400 can be fixed to the insulating base 300 by crimping, or it can be connected to the insulating base 300 by welding. Alternatively, the contact post 400 can be pre-embedded in the cavity by injection molding, so that it is connected to the insulating base 300 as a whole during the molding process. The insulating base 300 also provides fixation and support for the grounding post 400, maintaining the connection stability of the grounding post 400 and preventing loosening of the connection due to vibration or other reasons. The grounding post 400 extends axially along the thickness direction of the housing 100, passes through the first opening 113, and connects to the first circuit module 210 and the second circuit module 220 at its two ends, respectively. The grounding post 400 is usually made of conductive material, such as copper or copper alloy, which can effectively conduct current, realize the transmission of electrical signals, and ensure the normal operation of the circuit.

[0125] In some embodiments, the terminal post 400 is generally made of a metal material with good conductivity and mechanical strength, such as copper alloy or aluminum alloy. The insulating base 300 is usually made of engineering plastics, such as polycarbonate or nylon. During the injection molding process of the insulating base 300, a pre-drilled hole is generally provided in the mold for placing the terminal post 400. After the terminal post 400 is precisely placed in the designated position in the mold, molten plastic material is injected into the mold. The plastic completely fills the mold and tightly wraps the terminal post 400. After the injected plastic cools and solidifies, a solid insulating base 300 is formed, so that the terminal post 400 is firmly embedded inside the insulating base 300.

[0126] The terminal 400 can be made of conductive copper rod. Designing the terminal 400 as a conductive copper rod can significantly reduce resistance, reduce energy loss during current transmission, and improve the efficiency of electrical connection, making it especially suitable for high-power or high-frequency signal transmission scenarios.

[0127] Furthermore, due to the low resistance of copper, the terminal 400 generates less heat when transmitting large currents, thus reducing the temperature rise caused by resistive heating. This not only improves the operating efficiency of the electrical control device 30 but also reduces the potential risk of failure due to overheating, extending the service life of the equipment.

[0128] Furthermore, copper possesses excellent oxidation and corrosion resistance. Especially at room temperature, a dense oxide film forms on the copper surface, further protecting the internal materials from corrosion. This characteristic enables the contact post 400 to maintain stable electrical performance over long periods in humid or harsh environments, enhancing the reliability of the connector 40.

[0129] Please see Figure 7 The circuit has multiple terminals 400 and multiple base portions 320, with the peripheries of the multiple base portions 320 connected sequentially. The multiple base portions 320 can be arranged according to the connection requirements of the first circuit module 210 and the second circuit module 220. Each terminal 400 corresponds one-to-one with a different base portion 320, and each terminal 400 passes through its corresponding base portion 320. A limiting sleeve 500 and a limiting portion 323 are provided on at least one base portion 320. The limiting sleeve 500 and the limiting portion 323 can be provided on the same base portion 320; or, the limiting sleeve 500 and the limiting portion 323 can be provided on two different base portions 320. Specifically, each base portion 320 wraps around the periphery of its corresponding terminal 400, thereby providing good insulation. Each power contact post 400 has two power contact protrusions 420 connected to the first circuit module 210 and the second circuit module 220 respectively, allowing multiple independent electrical connections to be made simultaneously with the design of multiple power contact posts 400. This not only increases the functionality of the connector 40, but also supports a variety of different electrical requirements, such as power supply and signal transmission, improving the overall flexibility and adaptability of the device.

[0130] Furthermore, in applications requiring high-power or three-phase power transmission, using multiple terminals 400 can achieve more efficient and stable power transmission. For example, three-phase power supply is common practice in industrial automation equipment or large motor drive systems. By designing multiple terminals 400 to correspond to each line of the three-phase power supply, uniform current distribution can be ensured, reducing the stress on individual connection points and thus improving system reliability and safety.

[0131] Furthermore, the combined operation of multiple terminals 400 can distribute the total current load, reducing the current density on each individual terminal 400 and preventing overheating. This is particularly important for applications requiring high current handling, effectively improving the safety performance of the entire electronic control device 30.

[0132] Multiple limiting sleeves 500 are provided, each corresponding to one of multiple seat portions 320. The limiting sleeves 500 are spaced apart, and each limiting sleeve 500 is fitted onto its corresponding seat portion 320. The limiting portion 323 surrounds the periphery of the multiple seat portions 320, meaning the multiple seat portions 320 form a single unit, and the limiting portion 323 can surround this unit. This arrangement of multiple limiting sleeves 500 spaced apart and cooperating with the limiting portion 323 to clamp the electrical control device 30 in the installation environment helps reduce the risk of the connector 40 loosening within the housing 100 due to damage to a single limiting sleeve 500, thereby improving the secure fixation of the connector 40 within the housing 100.

[0133] In some embodiments, the electronic control device 30 may further include a third circuit board, which may be a power board or an active board, etc. The third circuit board may be disposed within the housing 100, and can be installed in a suitable position within the housing 100. The connector 40 may pass through the second opening, and the connector 40 may be connected to the third circuit board by means of snap-fit ​​connection or screw connection, thereby facilitating the fixed connection of the connector 40 to the third circuit board. The third circuit board may be stacked between the first circuit board 211 and the second circuit board 221.

[0134] 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.

[0135] 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. A connector characterized by comprising: Applied to an electronic control device, the electronic control device includes a housing and a first circuit module and a second circuit module disposed within the housing, and the connector includes: An insulating base includes a base body and a limiting part connected to the base body, wherein the base body is disposed within the housing; A limiting sleeve is fitted onto the base portion, and the limiting sleeve and the limiting portion cooperate to clamp the mounting environment of the electronic control device, thereby fixing the connector inside the housing; and A power connector is disposed inside the base body, and the two ends of the power connector are respectively connected between the first circuit module and the second circuit module to electrically connect the first circuit module and the second circuit module.

2. The connector of claim 1, wherein, A locking protrusion is provided on one of the inner wall surface of the limiting sleeve and the outer wall surface of the seat, and a locking groove is provided on the other inner wall surface of the limiting sleeve and the outer wall surface of the seat, and the locking protrusion is embedded in the locking groove.

3. The connector of claim 2, wherein, The limiting sleeve has a limiting cavity and an installation notch communicating with the limiting cavity. The installation notch is configured to allow the seat portion to be inserted into the limiting cavity and to allow the locking protrusion to be embedded in the locking groove.

4. The connector of claim 2, wherein, Both the card protrusion and the card slot extend circumferentially along the base portion.

5. The connector of claim 1, wherein, The housing is provided with a first opening, the seat part passes through the first opening, and the limiting sleeve and the limiting part cooperate to clamp the housing; An anti-rotation protrusion is provided on one of the outer wall surface of the seat and the inner wall surface of the first opening, and an anti-rotation groove is provided on the other of the outer wall surface of the seat and the inner wall surface of the first opening. The anti-rotation groove extends along the insertion direction of the insulating seat, and the anti-rotation protrusion is inserted into the anti-rotation groove.

6. The connector of claim 5, wherein, The anti-rotation protrusion is provided on the outer wall surface of the seat body; The anti-rotation protrusion is connected to the limiting part, and the anti-rotation protrusion is located between the limiting part and the limiting sleeve and extends along the length direction of the power contact post.

7. The connector of claim 1, wherein The power connection post has two connected power connection ends, and each power connection end has a power connection protrusion at its end. Each power connection protrusion protrudes radially from the periphery of the power connection post, and the two power connection protrusions are respectively connected between the first circuit module and the second circuit module.

8. The connector of claim 7, wherein, Each of the aforementioned electrical contact protrusions is arranged in a ring shape.

9. The connector of claim 7, wherein, Each of the electrical contact protrusions has an electrical contact plane on its end face, and the two electrical contact planes are respectively attached to the first circuit module and the second circuit module.

10. The connector of claim 7, wherein, The two electrical contact protrusions cooperate to clamp the two ends of the base body.

11. The connector of claim 7, wherein The base portion is provided with a mounting through hole, the power connection post passes through the mounting through hole, and the two power connection ends and the two power connection protrusions are partially exposed outside the mounting through hole.

12. The connector of claim 11, wherein, The base portion has mounting grooves at both ends along its length that communicate with the mounting through holes. The two mounting grooves correspond one-to-one with the two electrical contact protrusions, and each electrical contact protrusion is partially embedded in the corresponding mounting groove.

13. The connector of claim 11, wherein, The inner wall of the mounting through hole is provided with a first anti-rotation structure, and the power contact post is provided with a second anti-rotation structure located in the mounting through hole. The second anti-rotation structure is matched with the first anti-rotation structure to limit the rotation of the power contact post relative to the insulating base.

14. The connector of claim 13, wherein, The first anti-rotation structure includes a plurality of first limiting ribs, which are arranged sequentially at intervals around the circumference of the power receiving post, and each first limiting rib extends along the axial direction of the power receiving post. The second anti-rotation structure includes a plurality of second limiting ribs, which are arranged sequentially at intervals around the circumference of the power receiving post, and each second limiting rib extends along the axial direction of the power receiving post. Multiple second limiting ribs are arranged alternately with multiple first limiting ribs.

15. The connector of claim 7, wherein, The connector also includes two connectors, and the two electrical contact protrusions correspond one-to-one with the two connectors; One of the connectors is connected to the corresponding power-contacting protrusion and together they clamp the first circuit module. Another connector is connected to the corresponding electrical protrusion and together they clamp the second circuit module.

16. The connector of claim 15, wherein, Each of the connectors includes a connecting portion and a clamping portion connected to each other; one of the electrical contact protrusions is threaded to the corresponding connecting portion and cooperates with the corresponding clamping portion to clamp the first circuit module; Another of the aforementioned electrical contact protrusions is threadedly connected to the corresponding connection portion and cooperates with the corresponding clamping portion to clamp the second circuit module.

17. The connector of claim 1, wherein The electrical contact post is a conductive copper rod.

18. The connector of claim 1, wherein, The number of the electrical terminals and the number of the base portions are both multiple. The periphery of the multiple base portions is connected in sequence. The multiple electrical terminals correspond one-to-one with the multiple base portions. Each electrical terminal passes through the corresponding base portion. The limiting sleeve and the limiting part are disposed on at least one of the seat parts.

19. The connector of claim 18, wherein, The number of the limiting sleeves is multiple, and each of the multiple limiting sleeves corresponds to one of the multiple seat parts. The multiple limiting sleeves are arranged at intervals, and each limiting sleeve is sleeved on the corresponding seat part. The limiting portion is arranged around the periphery of the plurality of seat portions.

20. An electrically controlled device, characterized by include: case; Both the first circuit module and the second circuit module are disposed within the housing; The connector according to any one of claims 1 to 19, wherein the two ends of the electrical terminal are respectively connected between the first circuit module and the second circuit module to electrically connect the first circuit module and the second circuit module.

21. The electrically controlled device of claim 20, wherein, The housing is provided with a first cavity and a second cavity, which are arranged at intervals relative to each other in the thickness direction of the housing. The portion of the housing located between the first cavity and the second cavity is provided with a first opening, which connects the first cavity and the second cavity. A first circuit module and a second circuit module, wherein the first circuit module is disposed in the first cavity and the second circuit module is disposed in the second cavity; The seat portion passes through the first opening, and the limiting sleeve and the limiting portion cooperate to clamp the housing.

22. The electrically controlled device of claim 21, wherein, The housing includes a heat dissipation structure, a first cover, and a second cover. The first cover cooperates with the heat dissipation structure to form the first cavity, and the second cover cooperates with the heat dissipation structure to form the second cavity. The heat dissipation structure has a first side and a second side, the first cavity and the second cavity are respectively located on the first side and the second side of the heat dissipation structure, and the heat dissipation structure is provided with the first opening; The limiting sleeve and the limiting part cooperate to clamp the heat dissipation structure.

23. The electrically controlled device of claim 21, wherein, The first circuit module includes a first circuit board and a second circuit board, wherein the first circuit board is a filter board and the second circuit board is a driver board.

24. The electrically controlled device of claim 20, wherein, The electronic control device also includes: The third circuit board is disposed inside the housing and has a second opening, through which the insulating base and the power contact post pass.

25. A heating and ventilating apparatus, characterized by It includes a housing and an electronic control device as described in any one of claims 20 to 24, wherein the electronic control device is disposed within the housing.

26. The heating appliance of claim 25, wherein the heating element is a heating coil. The housing is provided with an inspection port; the electronic control device is located at the inspection port.

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