Reactive, electrically controlled device and heating and ventilation installation

Abstract

This application discloses a reactor, an electronic control device, and a heating, ventilation, and air conditioning (HVAC) system. The reactor includes a battery cell, thermally conductive adhesive, and a base. The battery cell includes a battery cell connection portion and at least one winding unit. Each winding unit includes a battery cell post and a coil. The winding unit and the battery cell connection portion form a winding space. The battery cell is disposed on the base and forms an adhesive-filling space with the base. The first plane of the base is the mounting surface of the reactor. The battery cell post is arranged in a direction parallel to the first plane. The coil is arranged around the battery cell post and passes through the winding space. At least a portion of the coil is exposed in the adhesive-filling space, and at least a portion of the thermally conductive adhesive fills the adhesive-filling space. The coil of this application adopts a vertical winding method, allowing the coil to be closer to the external device. The thermally conductive adhesive is filled in the adhesive-filling space near the first plane of the coil, and each turn of the coil wire can be partially wrapped by the thermally conductive adhesive, achieving rapid heat transfer of the entire coil. After the reactor is attached to the surface of the external device, the heat dissipation efficiency of the entire reactor is improved.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and in particular to a reactor, an electronic control device, and a heating and ventilation equipment. Background Technology

[0002] As a key component of HVAC equipment, the electrical control unit is primarily responsible for controlling and managing the operation of HVAC equipment, especially the outdoor unit. Its main functions include controlling the operation of the compressor and fans, frequency converter control, and communication with other components. The electrical control unit contains reactors, which generate a significant amount of heat during operation. If this heat is not dissipated promptly, it can accumulate and affect the stability of the control unit. In related technologies, reactors typically dissipate heat by filling their interior with thermally conductive adhesive. However, this method has a small heat dissipation area, low heat dissipation efficiency, and when the amount of adhesive is large, it can also lead to a heavy overall weight of the reactor. Utility Model Content

[0003] This application provides a reactor, an electronic control device, and a heating and ventilation system that can solve the problem of low heat dissipation efficiency of the reactor.

[0004] In a first aspect, embodiments of this application provide a reactor, which includes a battery cell, thermally conductive adhesive, and a base;

[0005] The battery cell includes a battery cell connection portion and at least one winding unit. Each winding unit includes a battery cell post and a coil. The battery cell post and the battery cell connection portion form a winding space. The battery cell is disposed on the base and forms a filling space with the base. The base has a first plane, which is the mounting surface of the reactance. The battery cell post is disposed in a direction parallel to the first plane. The coil is disposed around the battery cell post and passes through the winding space. At least a portion of the coil is exposed in the filling space, and at least a portion of the thermally conductive adhesive is filled in the filling space.

[0006] In some embodiments, the coil is composed of a plurality of sub-coils formed by wires surrounding the cell post. The sub-coils are stacked sequentially in a first direction parallel to the first plane. The coil has a first side and a second side facing away from each other in a second direction perpendicular to the first plane. The first side is exposed in the filling space. Both the first side and the second side are formed by stacking a portion of the wires constituting the sub-coil. At least a portion of the thermally conductive adhesive fills the filling space and covers the first side.

[0007] In some embodiments, both the first side and the second side are located outside the winding space; a portion of the thermally conductive adhesive is located in the winding space and fills the gap between the cell connection portion and the winding unit.

[0008] In some embodiments, the winding space has a first opening end and a second opening end disposed opposite to each other in the second direction, wherein in the second direction, the first opening end is disposed adjacent to the first plane relative to the second opening end; the thermally conductive adhesive fills the winding space; or, in the second direction, the thermally conductive adhesive is disposed at a distance from the second opening end.

[0009] In some embodiments, the base surrounds at least a portion of the outer periphery of the battery cell to support the battery cell, and in the second direction, the battery cell and the base form the filling space; the battery cell connection portion has a first surface and a second surface disposed opposite to each other in the second direction, and the first surface is adjacent to the first plane relative to the second surface, and in the second direction, the base and the second surface are spaced apart.

[0010] In some embodiments, the battery cell further includes two terminals electrically connected to the coil, the base and the battery cell connection portion enclose a wiring channel communicating with the glue-filled space, and the terminals pass through the wiring channel.

[0011] In some embodiments, in a second direction perpendicular to the first plane, the wiring channel is located on the side of the cell connection portion facing the first plane.

[0012] In some embodiments, the reactor further includes two lugs, one end of each lug being electrically connected to one terminal and the other end being electrically connected to an external device; the base also has two mounting protrusions, one lug being mounted on one of the mounting protrusions and the other lug being mounted on the other mounting protrusion.

[0013] In some embodiments, the wiring lug includes a first power terminal and a folded section. The first power terminal is detachably mounted on the mounting protrusion, and the folded section is connected to one end of the first power terminal and extends from the first power terminal toward the side where the first plane is located to connect with the wiring terminal.

[0014] In some embodiments, the connector includes a second power terminal connected to the other end of the first power terminal, at least a portion of the second power terminal extending in a direction parallel to the first plane, and the second power terminal being electrically connected to the external device.

[0015] In some embodiments, in a second direction perpendicular to the first plane, the surface of the mounting protrusion facing away from the first plane is provided with a mounting groove, the first electrical terminal is disposed in the mounting groove, and the surface of the first electrical terminal is in contact with the surface of the mounting protrusion defining the mounting groove.

[0016] In some embodiments, the base includes a plurality of spaced-apart assembly parts, each of which is independently and detachably mounted to the mounting surface of the external device by means of snap-fit ​​or screw fastening.

[0017] In some embodiments, the base further includes a support body disposed on the outer periphery of the battery cell, and the support body and the battery cell form the filling space. The surface of the support body includes the first plane. Each of the mounting protrusions is connected to the support body through an assembly part, and the mounting protrusions are spaced apart from the support body.

[0018] In some embodiments, the support body, the mounting protrusion, and the assembly portion are coplanar on one side facing the mounting surface of the external device; in a second direction perpendicular to the first plane, the height of the mounting protrusion is higher than the height of the assembly portion.

[0019] In some embodiments, the battery cell includes one winding unit, and the battery cell connection portion is arranged around the outer periphery of the winding unit to form a frame structure; or, the battery cell includes two winding units arranged side by side along a third direction, the battery cell pillars of each winding unit are arranged along a second direction, the third direction is perpendicular to the second direction and parallel to the first plane, the number of battery cell connection portions is two and they are arranged opposite each other along the second direction, and each battery cell connection portion is connected to two battery cell pillars respectively.

[0020] In some embodiments, the base is integrally formed with the battery cell connection portion; and / or the base is a plastic part.

[0021] In some embodiments, the reactance further includes a thermal pad selected from at least one of an elastic thermal pad and a metal thermal pad; wherein at least a portion of the thermal pad is disposed on the side of the thermally conductive adhesive facing the first plane; and / or, at least a portion of the thermal pad is disposed on the first plane of the base.

[0022] Secondly, this application provides an electronic control device, comprising:

[0023] The main housing includes a heat dissipation structure, the heat dissipation structure including a cold plate body having a first heat dissipation plane, and the main housing further including at least one heat dissipation cavity disposed on one side of the cold plate body in a direction perpendicular to the first heat dissipation plane; and

[0024] Multiple power components, the multiple power components including the reactance as described above, the reactance being disposed in the heat dissipation cavity and mounted to the first heat dissipation plane, the first plane of the reactance being disposed facing the first heat dissipation plane.

[0025] In some embodiments, the cold plate body has a heat dissipation channel for the flow of heat exchange medium; in a second direction perpendicular to the first plane, the reactance covers a portion of the heat dissipation channel.

[0026] In some embodiments, the plurality of heat dissipation cavities include a first sub-cavity and a second sub-cavity, wherein in the second direction, the first sub-cavity and the second sub-cavity are respectively disposed on opposite sides of the cold plate body; the electronic control device includes a drive board and a filter board, wherein the drive board is disposed in the first sub-cavity, the filter board and the reactor are disposed in the second sub-cavity, and the coil of the reactor and the filter board are respectively electrically connected to the drive board.

[0027] In some embodiments, the electronic control device further includes a first power connector mounted on the cold plate body; the battery cell further includes two terminals electrically connected to the coil; the reactance further includes two lugs corresponding one-to-one with the two terminals; one end of the lug is electrically connected to one of the terminals; and the other end of the lug is electrically connected to the drive board through the first power connector.

[0028] In some embodiments, the reactance further includes a thermal pad, which is selected from at least one of elastic thermal pads and metal thermal pads, and the thermal pad is disposed between the first heat dissipation plane and the first plane.

[0029] Thirdly, this application provides a heating, ventilation, and air conditioning (HVAC) device, including a housing and an electrical control device as described above, wherein the electrical control device is disposed within the housing; the housing is provided with an access port, and the electrical control device is located at the access port.

[0030] Based on the reactor, electrical control device, and HVAC equipment of this application embodiment, by placing the reactor core column horizontally and using a vertical winding method for multiple sections of the coil wire, the coil is arranged in the space perpendicular to the first plane. By filling the filling space of the coil near the first plane with thermally conductive adhesive, each turn of wire can be partially wrapped by the thermally conductive adhesive, and heat is directly transferred through the thermally conductive adhesive. The winding method can increase the heat transfer area between the coil and the thermally conductive adhesive, thereby achieving rapid heat transfer of the entire coil. At the same time, after the reactor is attached to the surface of the external device through the first plane, heat dissipation can be achieved through the thermally conductive adhesive, thereby further effectively improving the heat dissipation efficiency of the entire reactor. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a three-dimensional structural diagram of an electronic control device installed on an outdoor unit according to an embodiment of this application;

[0033] Figure 2 This is a three-dimensional structural diagram of an electronic control device according to an embodiment of this application;

[0034] Figure 3 This is a cross-sectional view of the main box body according to one embodiment of this application;

[0035] Figure 4 This is a three-dimensional structural diagram of a reactor mounted on a cold plate body according to an embodiment of this application;

[0036] Figure 5 This is a three-dimensional structural schematic diagram of a reactance according to an embodiment of this application;

[0037] Figure 6 This is a three-dimensional structural diagram of a reactor having a winding unit according to an embodiment of this application;

[0038] Figure 7 This is a cross-sectional view of a thermally conductive adhesive portion filling the winding space according to an embodiment of this application.

[0039] Figure 8 This is a cross-sectional view of a battery cell mounted on a base according to an embodiment of this application.

[0040] Figure 9 This is a cross-sectional view of a thermally conductive adhesive filling the winding space according to an embodiment of this application.

[0041] Figure 10 This is a three-dimensional structural diagram of a wiring lug mounted on a base according to an embodiment of this application;

[0042] Figure 11 This is a side view of the wiring channel located on one side of the cell connection portion according to an embodiment of this application;

[0043] Figure 12 This is a three-dimensional structural diagram of a first terminal block installed on a reactor according to an embodiment of this application;

[0044] Figure 13 This is a three-dimensional structural diagram of a reactor having two winding units according to an embodiment of this application;

[0045] Figure 14 This is a three-dimensional structural diagram of a coil wound on two battery cell pillars according to an embodiment of this application;

[0046] Figure 15 This is a three-dimensional structural diagram of two battery cell posts connected to two connecting parts according to an embodiment of this application;

[0047] Figure 16 This is a cross-sectional view of the thermally conductive adhesive in contact with two winding units according to an embodiment of this application.

[0048] Figure 17 This is a three-dimensional structural diagram of a battery cell comprising two winding units, wherein the reactance is mounted on the cold plate body according to an embodiment of this application.

[0049] Figure 18 This is a three-dimensional structural diagram of a thermal pad disposed on a reactor according to an embodiment of this application;

[0050] Figure 19 This is a three-dimensional structural diagram of a filter substrate and a cold plate body spaced apart according to an embodiment of this application.

[0051] Figure 20 This is a three-dimensional structural diagram of a first and second power connector mounted on a cold plate body according to an embodiment of this application.

[0052] Figure label:

[0053] 1. Electronic control device; 221. Filter board;

[0054] 10. Main housing; 111. Cold plate body; 111a. First heat dissipation plane; 1111. Heat dissipation channel; 1113. Second power connection opening; 1121. First enclosure plate; 1122. Second enclosure plate; 11. First cover; 12. Second cover; 13. Main control cover; 21. Central housing;

[0055] 101. Heat dissipation cavity; 1011. First sub-cavity; 1012. Second sub-cavity; 1013. Main control cavity;

[0056] 200. Reactor; 220. Battery cell; 210. Winding unit; 211. Coil; 212. Terminal; 2111. First side surface; 2112. Second side surface; 221. Battery cell connection part; 2211. First surface; 2212. Second surface; 222. Battery cell post; 220a. Winding space; 221a. First open end; 221b. Second open end; 230. Base; 2321. First plane; 230a. Filling space; 230b. Wiring channel; 231. Mounting protrusion; 2311. Mounting groove; 232. Support body; 233. Assembly part; 240. Wiring lug; 241. First power terminal; 243. Second power terminal; 242. Folding section; 250. Thermally conductive adhesive;

[0057] 310, First electrical connector; 320, Second electrical connector; 400, Thermal pad; A, First direction; H, Second direction; B, Third direction; 2, Outdoor unit; 200, Housing; 200a, Inspection port; 300, Air supply fan. Detailed Implementation

[0058] 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.

[0059] Heating, ventilation, and air conditioning (HVAC) systems are used to regulate the indoor environment, including functions such as heating, ventilation, and air conditioning. Taking air conditioning systems as an example, an air conditioning system can be a multi-split system used in buildings, where multiple indoor units are connected in parallel to one or more outdoor units, forming a refrigerant loop to allow refrigerant to circulate. Figure 1 The outdoor unit 2 of the air conditioning system is shown. The outdoor unit 2 has a housing 200, an electronic control device 1 and a fan 300 located inside the housing 200.

[0060] The housing 200 is the external component of the HVAC system, protecting internal components, providing a mounting base, and optimizing airflow. The electrical control unit 1 is the core control component of the HVAC system. Installed inside the housing 200, it facilitates maintenance and replacement, and also streamlines the installation and layout of the overall HVAC system structure. The electrical control unit 1 is responsible for precisely controlling the operation of the HVAC system. It contains various control circuits that use electronic components and wiring to control the HVAC system's start-up, stop, temperature adjustment, and mode switching.

[0061] The electronic control device 1 and the air supply fan 300 are housed inside the casing 200, which forms an air duct. The air supply fan 300 is located at the top of the casing 200, that is, at the top of the air duct, and blows air upwards. The electronic control device 1 is located inside the air duct, so the airflow within the air duct can carry away the heat generated by the electronic control device, ensuring the heat dissipation effect of the electronic control device 1.

[0062] The housing 200 is provided with an inspection port 200a, such as Figure 1 The figure shown is a three-dimensional structural diagram of an electronic control device 1 located at the access port 200a of the outdoor unit 2 according to an embodiment of this application. The electronic control device 1 is located at the access port 200a, and maintenance personnel can quickly access the electronic control device 1 without having to enter the casing 200 to operate the electronic control device 1, thereby greatly improving the efficiency of maintenance and repair.

[0063] The electrical control device 1 includes a main housing 10 and at least one power module. The power module is the main body with control circuits, and at least one power module realizes the control function of HVAC equipment through various electronic components and circuits, and is used to control the start, stop, temperature adjustment, mode switching and other operations of HVAC equipment.

[0064] like Figure 2 and Figure 3 As shown, the main housing 10 constructs at least one heat dissipation cavity 101 for housing the power module, and provides protection for the power components through the main housing 10. In this embodiment, the power module includes a frequency converter drive module, a main control module, and a central module, and at least one of the frequency converter drive module, the main control module, and the central module is disposed within the heat dissipation cavity 101 of the main housing 10.

[0065] The main control module is responsible for the operation management and control of the entire HVAC equipment. It typically integrates multiple functional modules such as microprocessor, memory, signal processing and communication interface. By receiving data, executing algorithm calculations and outputting instructions, it achieves precise control of key components such as compressor, fan, and electronic expansion valve, including functions such as temperature regulation, mode switching and fault diagnosis.

[0066] The variable frequency drive module is mainly used to eliminate high-frequency interference and noise in the power grid, ensure that electrical equipment can work normally without being affected by power fluctuations, and convert DC power into AC power with adjustable frequency, thereby adjusting the operating frequency of the compressor motor to achieve precise control of cooling or heating capacity, achieving the dual goals of energy saving and comfort.

[0067] The central module is mainly responsible for the acquisition, processing and transmission of data from electronic devices such as sensors and electronic valve bodies, and transmits the data to the main control module for further processing.

[0068] Both the variable frequency drive module and the main control module are located in the main housing 10. The electrical control device 1 may also include a central housing 210, with the central module located in the central housing 210. The main housing 10 and the central housing 210 are spaced apart. A switching valve is installed inside the casing 200 of the outdoor unit 2. This switching valve is used to control the flow direction of fluids (such as refrigerant, air, etc.). It switches the flow direction of the fluid by changing the position of the valve core, thereby achieving the switching of different operating modes. Specifically, the switching valve can be a four-way valve. The four-way valve achieves the switching between cooling and heating modes by switching the flow direction of the refrigerant. Figure 1 As shown, when the central housing 210 is spaced apart from the main housing 10, the central housing 210 can be connected to the switching valve via a bracket. It is understood that various sensors, electronic valves, etc., are installed on the refrigerant piping connected to the switching valve. This application installs the central housing 210 near the switching valve, allowing it to be closer to the sensors and electronic valves in the outdoor unit 2, resulting in shorter wiring and simplifying the overall wiring of the unit.

[0069] The frequency converter drive module and the main control module are located in the same main housing 10. The frequency converter drive module and the main control module are located in at least one heat dissipation cavity 101. The frequency converter drive module and the main control module each include at least one power element. Since the power elements of the frequency converter drive module and the main control module need to be sealed to prevent the power elements from being contaminated with water vapor and interfering with the normal operation of the power elements, these power elements generate a lot of heat when they are working. Being in a sealed space makes it difficult for the heat of the power elements to dissipate, which affects the stability of the operation of the power elements.

[0070] In this embodiment, the main housing 10 also includes a heat dissipation structure, which includes a cold plate body 111. The cold plate body 111 has a heat dissipation channel 1111 inside, and a heat exchange medium is introduced into the heat dissipation channel 1111. Each heat dissipation cavity 101 is located on one side of the cold plate body 111. Thus, when the power module is located in the heat dissipation cavity 101, the cold plate body 111 can directly receive the heat generated by the power element. Alternatively, the cold plate body 111 can cool the gas in the heat dissipation cavity 101, thereby dissipating heat from the power element. Based on this, it is convenient to set up the structural components of the main housing 10 and the power module for efficient heat dissipation.

[0071] like Figure 4As shown, the variable frequency drive module includes multiple power components, including a reactor 200. The reactor 200 is used to suppress high-order harmonics in the circuit and protect electronic devices from damage. The reactor 200 generates a large amount of heat during operation. In addition to heat dissipation through the cold plate body 111, the structure of the reactor 200 in this embodiment is improved to enhance its heat dissipation efficiency. Optionally, the cold plate body 111 has a first heat dissipation plane 111a, and the reactor 200 is disposed on the first heat dissipation plane 111a and mounted on the cold plate body 111, allowing the cold plate body 111 to directly dissipate heat from the reactor 200. In other embodiments, the reactor 200 can also be mounted on other structures of the heat dissipation structure, or on other structures of the main housing 10; any structure capable of heat transfer is applicable to this application.

[0072] like Figure 5 and Figure 6 As shown, the reactor 200 includes a battery cell 220, thermally conductive adhesive 250, and a base 230. The battery cell 220 includes a battery cell connection portion 221 and at least one winding unit 210. The winding unit 210 includes a battery cell post 222 and a coil 211. The battery cell post 222 and the battery cell connection portion 221 enclose a winding space 220a. The battery cell 220 is disposed on the base 230 and forms an adhesive-filling space 230a with the base 230. The base 230 has a first plane 2321, which is the mounting surface of the reactor 200 and is used to face the surface of external devices such as the first heat dissipation plane 111a. The battery cell post 222 is disposed along a first direction A parallel to the first plane 2321. The coil 211 is disposed around the battery cell post 222 and passes through the winding space 220a. At least a portion of the coil 211 is exposed in the adhesive-filling space 230a, and at least a portion of the thermally conductive adhesive 250 is filled in the adhesive-filling space 230a.

[0073] Each coil 211 is composed of multiple sub-coils formed by wires winding around the core post 222. In this embodiment, the core post 222 of the reactance 200 is placed horizontally, and the multiple sub-coils of each coil 211 are arranged in a first direction A parallel to the first plane 2321. That is, each sub-coil of the coil 211 is wound vertically, with the vertical direction being perpendicular to the first plane 2321 (i.e., the second direction A). The coil 211 is arranged using the space in the direction perpendicular to the first plane 2321. In the second direction H, coil 211 can be placed closer to an external device similar to the first heat dissipation plane 111a, allowing the external device to receive heat from the reactor 200 more promptly. Furthermore, by filling the filling space 230a of the coil 211 adjacent to the first plane 2321 with thermally conductive adhesive 250, each turn of wire can be partially wrapped by the thermally conductive adhesive 250, allowing direct heat transfer through the adhesive. The winding method increases the heat transfer area between the coil 211 and the thermally conductive adhesive 250, thus achieving rapid heat transfer throughout the coil 211. Simultaneously, after the reactor 200 is bonded to the surface of the external device via the first plane 2321, heat dissipation can be achieved through the thermally conductive adhesive 250, further improving the overall heat dissipation efficiency of the reactor 200.

[0074] In addition, the low-temperature gas in the space where the reactor 200 is located can be used to cool the reactor 200, so that the thermally conductive adhesive 250 is only filled in the area adjacent to the first heat dissipation plane 111a, which can meet the heat dissipation requirements of solid-solid heat dissipation between the reactor 200 and the first heat dissipation plane 111a, effectively saving the amount of thermally conductive adhesive 250 and reducing the weight of the reactor 200.

[0075] The coil 211 is the main heat-generating component in the reactor 200 during operation. The heat generated by the coil 211 is initially dissipated into the winding space 220a. To receive the heat generated by the coil 211 more promptly, a portion of the thermally conductive adhesive 250 is disposed in the winding space 220a, allowing the thermally conductive adhesive 250 to contact the coil 211 within the winding space 220a and transfer the heat to the first heat dissipation plane 111a. The thermally conductive adhesive 250 disposed in the winding space 220a also contacts the walls of the base 230, the coil 211, the cell connection portion 221, and the cell post 222, filling the gap between the base 230 and the cell 220. The thermally conductive adhesive 250 can also transfer the heat from the coil 211 to the cell connection portion 221 and the cell post 222, through which the heat is dissipated to the heat dissipation cavity 101, improving heat dissipation efficiency.

[0076] like Figure 7As shown, the coil 211 includes a first side 2111 and a second side 2112 arranged opposite to each other along a second direction H. The second direction H is perpendicular to the first plane 2321. The first side 2111 faces the first plane 2321, and the second side 2112 faces away from the first plane 2321. That is, in the second direction H, the first side 2111 is located closer to the first plane 2321 than the second side 2112. Specifically, the coil 211 is composed of multiple sub-coils formed by circumferentially winding wires around the core post 222. The reactance 200 also includes two terminals 212 connected to both ends of the wires. The two terminals 212 are used to electrically communicate with the conductive structure outside the reactance 200. The first side 2111 is exposed in the glue-filling space 230a. Both the first side 2111 and the second side 2112 are formed by stacking partial wires that constitute the multi-turn coil. At least a portion of the thermally conductive adhesive 150 fills the adhesive-filling space 230a and covers the first side 2111, so that the multi-turn coils spliced ​​to form the first side 2111 can all come into contact with the thermally conductive adhesive 250. As long as the sub-coil comes into contact with the thermally conductive adhesive 250, it can transfer heat through the thermally conductive adhesive 250, thereby achieving rapid heat dissipation of the entire coil 211.

[0077] The cell connection portion 221 has a first surface 2211 and a second surface 2212 disposed opposite to each other along the second direction H. The first surface 2211 is disposed facing the first heat dissipation plane 111a. The first surface 2211 is disposed adjacent to the first plane 2321 relative to the second surface 2212. The winding space 220a extends to the first surface 2211 and the second surface 2212 respectively. The winding space 220a is a space with open ends along the second direction H. A portion of the surface of the coil 211 that is not covered by the thermally conductive adhesive 250 is directly exposed to the space where the reactance 200 is located. The heat generated by the coil 211 can be directly dissipated from the portion of the surface of the coil 211 that is not covered by the thermally conductive adhesive 250 to the space where the reactance 200 is located. In this embodiment, the first heat dissipation plane 111a can also dissipate heat and cool the structural components and gas within the space where the reactor 200 is located, meeting the heat dissipation requirements. This makes it possible to design a sealed space for the reactor 200, preventing external substances from entering the space where the electronic control device 1 is located. Consequently, the coil 211 of the reactor 200 can be directly exposed within the space where the reactor 200 is located, eliminating the need to encapsulate the entire coil 211 of the reactor 200, thus improving heat dissipation efficiency and reducing the weight of the reactor 200. The thermally conductive adhesive 250 is spaced apart from the second side surface 2112, and does not completely cover the surface of the coil 211. Some of the heat can be directly dissipated from the surface of the coil 211 that is not covered by the thermally conductive adhesive 250.

[0078] Furthermore, the first side 2111 and the second side 2112 of the coil 211 are both located outside the winding space 220a, so that the coil 211 extends out of the winding space 220a at both ends opposite to each other in the second direction H. The first side 2111 is exposed in the filling space 230a and dissipates heat through the thermally conductive adhesive 250, and the part of the coil 211 with the second side 2112 is exposed in the space where the reactance 200 is located, so that the heat of the coil 211 can also be directly dissipated in the space where the reactance 200 is located.

[0079] In some embodiments, the thermally conductive adhesive 250 may be entirely disposed in the winding space 220a, or, in some embodiments, a portion of the thermally conductive adhesive 250 may be disposed in the adhesive space 230a, and another portion of the thermally conductive adhesive 250 may be disposed in the winding space 220a.

[0080] like Figure 7 and Figure 8 As shown, the winding space 220a has a first opening end 221a and a second opening end 221b disposed opposite each other in a second direction H. The first opening end 221a is disposed facing the first heat dissipation plane 111a, and the second opening end 221b is disposed away from the first heat dissipation plane 111a. That is, in the second direction H, the first opening end 221a is disposed adjacent to the first plane 2321 relative to the second opening end 221b. The portion of the coil 211 having the second side surface 2112 extends out of the winding space 220a at the second opening end 221b. In some embodiments, such as Figure 7 As shown, when a portion of the thermally conductive adhesive 250 is disposed in the winding space 220a, the thermally conductive adhesive 250 does not completely fill the winding space 220a. Specifically, in the second direction H, the thermally conductive adhesive 250 is spaced apart from the second opening end 221b. In this case, not only is the second side 2112 of the coil 211 not covered by the thermally conductive adhesive 250, but also a portion of the coil 211 disposed in the winding space 220a is not covered by the thermally conductive adhesive 250, resulting in a smaller amount of thermally conductive adhesive 250 material used. In some embodiments, such as Figure 9 As shown, when a portion of the thermally conductive adhesive 250 is disposed in the winding space 220a, the thermally conductive adhesive 250 fills the winding space 220a. That is, in the second direction H, the thermally conductive adhesive 250 extends to the first opening end 221a and the second opening end 221b, and only the surface of the portion of the coil 211 extending out of the second opening end 221b is not covered by the thermally conductive adhesive 250.

[0081] In this embodiment, the base 230 surrounds at least a portion of the battery cell 220 to support the battery cell 200. In the second direction H, the battery cell 220 and the base 230 form a filling space 230a. The base 230 provides support for the battery cell 220, allowing the reactor 200 to cover a larger area, thus providing a suitable contact area when in contact with the first heat dissipation plane 111a of the heat dissipation structure, improving the installation stability of the reactor 200 on the heat dissipation structure. In some embodiments, in the second direction H, the battery cell 220 and the first surface 2211 are spaced apart, and the base 230 and the battery cell 220 enclose the filling space 230a. The thermally conductive adhesive 250 disposed in the filling space 230a can not only conduct heat but also increase the contact area between the reactor 200 and the external device, improving the installation stability of the reactor 200. Optionally, the surface of the thermally conductive adhesive 250 is on the same plane as the first plane 2321 of the base 230, further improving the installation stability of the reactor 200 on the first heat dissipation plane 111a.

[0082] The base 230 forms a closed structure around the outer periphery of the battery cell 220. This serves two purposes: firstly, it provides stable support for the battery cell 220; secondly, it facilitates the filling of the thermally conductive adhesive 250. In some embodiments, such as... Figures 7-9 As shown, the base 230 is disposed on the outer periphery of the portion of the battery cell 220 adjacent to the first surface 2211, and in the second direction H, the base 230 is spaced apart from the second surface 2212 of the battery cell connection portion 221. That is, the base 230 only partially covers the outer periphery of the battery cell connection portion 221 in the second direction H, exposing the portion of the battery cell 220 away from the first heat dissipation plane 111a to the space where the reactance 200 is located, and saving the material usage of the base 230.

[0083] It is understandable that after the conductor of coil 211 is wound around the cell post 222 to form the main body of coil 211, the two terminals 212 connected to coil 211 need to be led out from the winding space 220a so that the two terminals 212 can be electrically connected to the drive board later. In some embodiments, such as Figure 10 As shown, the base 230 and the cell connection portion 221 enclose at least one wiring channel 230b. The terminal 212 passes through the wiring channel 230b to facilitate smooth exit of the terminal 212 and thus facilitate electrical connection with the drive board. It can be understood that, based on the winding method of the coil 211, the two terminals 212 have a certain distance between them in the direction parallel to the first heat dissipation plane 111a. Optionally, two wiring channels 230b are provided, and the two terminals 212 are correspondingly passed through the two wiring channels 230b.

[0084] In some embodiments, such as Figure 10As shown, in the second direction H, the wiring channel 230b is located on one side of the cell 220 to prevent bending at the connection between the terminal 212 and the cell 220. When there are two wiring channels 230b, the two wiring channels 230b are located on the same side of the cell post 222.

[0085] In some embodiments, such as Figure 10 and Figure 11 As shown, the battery cell 220 is spaced apart from the external device via the base 230 in the second direction H, and two wiring channels 230b are located on the side of the battery cell 220 facing the first plane 2321, so that a portion of the terminal 212 is also located in the filling space 230a. The thermally conductive adhesive 250 located in the filling space 230a also covers a portion of the terminal 212, thus dissipating heat from the terminal 212.

[0086] The reactor 200 also includes two lugs 240 that are electrically connected to the two terminals 212 in a one-to-one correspondence. One end of each lug 240 is electrically connected to one terminal 212, and the other end is electrically connected to the drive board of the electronic control device 1. The base also has two mounting protrusions 231, one lug 240 is mounted on one mounting protrusion 231, and the other lug 240 is mounted on the other mounting protrusion 231. The mounting protrusions 231 provide support for the terminals 212, and the lugs 240 fix the position of the terminals 212, preventing the terminals 212 from shaking randomly and improving the electrical connection stability of the terminals 212.

[0087] like Figure 10 and Figure 11 As shown, the connector 240 includes a first power-connecting terminal 241 and a folded section 242. The first power-connecting terminal 241 is detachably mounted on the mounting protrusion 231. The folded section 242 is connected to one end of the first power-connecting terminal 241 and extends from the first power-connecting terminal 241 to the side where the first plane 2321 is located, connecting to the connector 212. By designing the folded section 242 so that it is close to the connector 212 and in a suitable position to connect with the connector 212, the number of bends of the connector 212 is reduced. Furthermore, even if the connector 212 needs to be bent, the bend is only performed in a plane parallel to the first heat dissipation plane 111a, reducing the bending stress of the connector 212 and facilitating a stable connection between the connector 212 and the folded section 242. Optionally, the terminal 212 is welded and fixedly connected to the folded section 242. Alternatively, the terminal 212 can be connected to the folded section 242 in other ways. This application does not limit this, and any connection method that can limit the relative position of the terminal 212 and the folded section 242 is applicable to this application.

[0088] The connector 240 also includes a second power terminal 243, which is connected to the other end of the first power terminal 241. The second power terminal 243 is used for electrical connection with an external device. Optionally, such as... Figure 12 As shown, the external device includes a first power connector 310, and the electronic control device 1 further includes two first power connectors 310 corresponding one-to-one with the two connecting ears 240. One end of each first power connector 310 is electrically connected to a second power terminal 243, and the other end is electrically connected to a drive board. The coil 211 is electrically connected to the drive board through the first power connectors 310 and the connecting ears 240. In some embodiments, at least a portion of the second power terminal 243 is spaced apart from the mounting protrusion 231, and the portion of the second power terminal 243 spaced apart from the mounting protrusion 231 is used for electrical connection with the first power connector 310 to facilitate the assembly of the connecting ears 240 and the first power connector 310. In other embodiments, the external device may also be a power supply, conductive post, etc. The embodiments of this application do not limit the type of external device, and the specific type can be selected according to actual needs.

[0089] In some embodiments, at least a portion of the first power terminal 241 is parallel to the first plane 2321 to stably mount the first power terminal 241 to the mounting protrusion 231, and at least a portion of the second power terminal 243 is parallel to the first plane 2321 to assemble the second power terminal 243 with the first power socket 310. Optionally, the first power terminal 241 and the second power terminal 243 extend in the same direction parallel to the first plane 2321; or, the first power terminal 241 and the second power terminal 243 extend in two directions that are angled and both parallel to the first plane 2321, so that the first power terminal 241 and the second power terminal 243 are set at an angle. The first power terminal 241 and the second power terminal 243 of the two terminals 240 can be set independently in the above two ways so that the second power terminal 243 can flexibly connect with the corresponding first power socket 310.

[0090] The wiring lug 240 in this embodiment is made of metal. When the wiring lug 240 is fastened to the mounting protrusion 231, a certain installation stress occurs due to the structure fixing the wiring lug 240 acting on it. Figure 10 and Figure 11As shown, in the second direction H, the surface of the mounting protrusion 231 facing away from the first plane 2321 is provided with a mounting groove 2311. At least a portion of the wiring lug 240 is disposed in the mounting groove 2311. The surface of the wiring lug 240 is in contact with the surface of the mounting protrusion 231 that defines the mounting groove 2311. The wall of the mounting groove 2311 provides support for the wiring lug 240, defines the position of the wiring lug 240, and prevents the wiring lug 240 from deforming due to installation stress, thereby improving the installation stability of the wiring lug 240 with the terminal 212 and the first electrical connector 310, respectively. Optionally, the first electrical connector 241 is disposed in the mounting groove 2311. In addition, the first electrical connector 241 is set at an angle with the folded section 242. The folded section 242 and the first electrical connector 241 can interact with each other, improving the structural strength of the wiring lug 240 and preventing the first electrical connector 241 from deforming.

[0091] Optionally, the bottom wall of the mounting groove 2311 is provided with a first threaded hole, and the first electrical terminal 241 is provided with a first opening. The first opening is provided corresponding to the first threaded hole. Screws can be provided in the first opening and the first threaded hole, and the first electrical terminal 241 can be detachably installed on the mounting protrusion 231 by means of screw fastening.

[0092] In some embodiments, the first electrical terminal 241, the second electrical terminal 243, and the folded section 242 of the connector 240 are integrally formed, which further improves the structural strength of the connector 240 and reduces the impedance of the connector 240.

[0093] In this embodiment, at least a portion of the base 230 located between two adjacent mounting protrusions 231 is insulated, or at least one of the two mounting protrusions 231 is insulated, preventing electrical short circuits between the two terminals 212 of the coil 211. Optionally, the base 230 is a plastic part, that is, the entire base 230 is insulated, separating the cell connection portion 221 from the first terminal block 310 and the wiring lug 240 to prevent electrical short circuits.

[0094] like Figure 10 and Figure 12As shown, the base 230 includes multiple spaced assembly parts 233, each of which is independently and detachably mounted to the mounting surface of the external device using snap-fit ​​and screw fastening methods, facilitating the assembly and disassembly of the reactor 200. The base 230 also includes a support body 232, which is sleeved on the outer periphery of the battery cell 220. The support body 232 and the battery cell connection part 221 enclose a wiring channel 230b and a filling space 230a, and the multiple assembly parts 233 are disposed on the support body 232. Optionally, the mounting protrusion 231 is directly provided on the support body 232, or the mounting protrusion 231 is connected to the support body 232 through an assembly part 233, and the mounting protrusion 231 and the support body 232 are spaced apart. The position of the mounting protrusion 231 can be selected according to the actual installation requirements, so that the mounting protrusion 231 is in a suitable position to provide support for the wiring ear 240, and thus the wiring ear 240 is in a suitable position to be electrically connected to the wiring terminal 212 and the first electrical connector 310 respectively.

[0095] In some embodiments, such as Figure 12 As shown, the support body 232 has a first plane 2321. The support body 232, the mounting protrusion 231, and the assembly part 233 are coplanar on the side facing the mounting surface of the external device. For example, the three are coplanar on the plane where the first plane 2321 is located, making the reactor 200 look neat and improving the installation stability of the reactor on the first heat dissipation plane 111a. The assembly part 233 is installed on the heat dissipation structure to fix the position of the reactor 200 relative to the heat dissipation structure. The mounting protrusion 231 is used to provide support for the wiring lug 240. In the second direction H, the height of the mounting protrusion 231 is higher than the height of the assembly part 233. By raising the position of the wiring lug 240 relative to the first heat dissipation plane 111a through the mounting protrusion 231, the wiring lug 240 is positioned appropriately to mate with the wiring terminal 212 and the first electrical connector 310 respectively, preventing interference between the wiring lug 240 and the structure at the assembly part 233.

[0096] In some embodiments, the support body 232, assembly part 233, and mounting protrusion 231 of the base 230 can be integrally formed to facilitate the assembly of the reactor 200. In some embodiments, the support body 232 is fixedly mounted to the surface of the cell 220 by adhesive bonding, or the base 230 and the cell 220 are integrally formed by injection molding, so that the surfaces of the base 230 and the cell 220 have better fit and the connection strength between the base 230 and the cell 220 is improved.

[0097] In some embodiments, please refer to Figure 5 and Figure 6The battery cell 220 includes a winding unit 210. The battery cell connection portion 221 is arranged around the outer periphery of the winding unit 210 to form a frame structure. At this time, the support body 232 of the base 230 is arranged around the outer periphery of the battery cell connection portion 221, and the support body 232 is spaced apart from the coil 211. The coil 211 is arranged to wind only one battery cell post 222, which facilitates winding.

[0098] In some embodiments, Figure 13 and Figure 14 The battery cell 220 includes two winding units 210 arranged side by side along a third direction B. The cell posts 222 of each winding unit 210 are arranged along a first direction A. The first direction A, the second direction H, and the third direction B are perpendicular to each other. There are two cell connection portions 221. Figure 14 and Figure 15 Two cell connection portions 221 are arranged opposite each other along the first direction A, and each cell connection portion 221 is connected to two cell posts 222 respectively. Optionally, one cell connection portion 221 is located on one side of the two cell posts 222 in the first direction A and is connected to both cell posts 222, and the other cell connection portion 221 is located on the other side of the two cell posts 222 in the first direction A and is connected to both cell posts 222. The support body 232 of the base 230 is arranged around the outer periphery of the cell 220, and the support body 232 contacts the coil 211 and the cell connection portion 221 respectively. Figure 16 The diagram shown is a cross-sectional view of a battery cell 220 in one embodiment of this application, where a portion of the thermally conductive adhesive 250 is disposed in the filling space 230a and another portion is disposed in the winding space 220a. The thermally conductive adhesive 250 contacts the coils 211 of the two winding units 210 respectively, and dissipates heat from the coils 211 of the two winding units 210. The contact area is larger and the heat dissipation efficiency is higher.

[0099] In this configuration, the coils 211 of the two winding units 210 are electrically connected between the two cell pillars 222. One terminal 212 is connected to the coil 211 of one winding unit 210, and the other terminal 212 is connected to the coil 211 of the other winding unit 210. This allows the coils 211 of the cell 220 to have more area facing the first heat dissipation plane 111a, which helps to further improve the efficiency of heat transfer from the coils 211 to the first heat dissipation plane 111a. In addition, the coils 211 of the two winding units 210 can also be in a more open space, preventing the heat of the reactance 200 from accumulating inside.

[0100] Alternatively, please refer to [further details]. Figure 13When the battery cell 22 includes two winding units 210, the filling space 230a is relatively large. The base 230 also includes a reinforcing part 234, which is located in the filling space 230a and connected to the support body 232. The reinforcing part 234 is positioned in the area between the two winding units 210, increasing the structural strength of the support body 232. The reinforcing part 234 also divides the filling space 230a into two areas, so that the thermally conductive adhesive 250 is located in two spaced areas facing the first heat dissipation plane 111a, facilitating filling and improving the flatness of the filling. Figure 17 The figure shown is a three-dimensional structural diagram of a battery cell 220 including two winding units 210, with the reactance 200 disposed on the first heat dissipation plane 110a according to an embodiment of this application. The base 230 is disposed around the outer periphery of the two winding units 210 and the battery cell connection portion 221, and the base 230 is mounted on the first heat dissipation plane 111a.

[0101] The heat dissipation structure in this application embodiment is made of metal material, balancing structural strength and heat dissipation requirements. In some embodiments, the thermally conductive adhesive 250 of the reactor 200 and the base 230 can be directly attached to the first heat dissipation plane 111a of the heat dissipation structure, directly transferring heat to the first heat dissipation plane 111a. In some embodiments, such as Figure 18 As shown, the electronic control device also includes a thermal pad 400. Optionally, at least a portion of the thermal pad 400 is disposed on the side of the thermally conductive adhesive 250 facing the first plane 2321. The thermal pad 400 compensates for defects such as uneven potting of the thermally conductive adhesive 250 or unevenness of the surface of the external device, and fills the assembly gap between the reactor 200 and the surface of the external device, thereby improving the adhesion between the reactor and the surface of the external device, further improving the heat transfer efficiency, and also improving the installation stability of the reactor 200. Optionally, at least a portion of the thermal pad 400 is disposed on the first plane 2321 of the base 230. The thermal pad 400 fills the assembly gap between the base 230 and the surface of the external device, improving the adhesion between the reactor 200 and the surface of the external device, and further improving the heat transfer efficiency. When the surface of the external device is the first heat dissipation plane 111a, the first plane 2321 faces the first heat dissipation plane 111a and is parallel to the first heat dissipation plane 111a. The thermal pad 400 is disposed between the first heat dissipation plane 111a and the first plane 2321. The heat of the reactor 200 is transferred to the first heat dissipation plane 111a through the thermal pad 400, and the heat is carried away by the heat exchange medium inside the cold plate body 111, achieving efficient heat dissipation.

[0102] The thermal pad 400 is selected from at least one of elastic thermal pads and metal thermal pads. The elastic thermal pad is made of a non-metallic elastic thermally conductive material, while the metal thermal pad is made of a metallic material. When the thermal pad 400 is an elastic thermal pad, it undergoes elastic deformation, adapting to the shapes of the first heat dissipation plane 111a and the thermally conductive adhesive 250 through elastic deformation, resulting in a better and tighter fit with the first heat dissipation plane 111a. When the thermal pad 400 is a metal thermal pad, it has a very high thermal conductivity, resulting in better thermal conductivity. In this embodiment, the materials of the elastic thermal pad and the metal thermal pad are not limited. Any material that can meet the above-mentioned thermal conductivity requirements is applicable to this application. For example, the material of the elastic thermal pad is selected from thermally conductive silicone or thermally conductive rubber, and the material of the metal thermal pad is selected from aluminum or aluminum alloy.

[0103] To further improve heat dissipation efficiency, the cold plate body 111 of the heat dissipation structure has a heat dissipation channel 1111 for the flow of heat exchange medium. During the flow of the heat exchange medium in the heat dissipation channel 1111, it can carry away the heat on both sides of the cold plate body 111. Therefore, the cold plate body 111 can cool the space on both sides. When the main box 10 has multiple heat dissipation cavities 101, in the second direction H of the cold plate body 111, the multiple heat dissipation cavities 101 can be arranged on the same side of the cold plate body 111. Alternatively, the cold plate body 111 has a first side and a second side opposite to each other in the second direction H, wherein a portion of the heat dissipation cavities 101 are arranged on the first side of the cold plate body 111, and another portion of the heat dissipation cavities 101 are arranged on the second side of the cold plate body 111.

[0104] Optionally, the multiple heat dissipation cavities 101 include a first sub-cavity 1011, a second sub-cavity 1012, and a main control cavity 1013. The main control module is located in the main control cavity 1013. The frequency conversion drive module includes a drive board, a filter board, and a reactor 200. The coil 211 of the reactor 200 and the filter board are electrically connected to the drive board, respectively. The drive board is located in the first sub-cavity 1011, and the filter board and the reactor 200 are located in the second sub-cavity 1012. The first sub-cavity 1011 and the main control cavity 1013 are located on the first side of the cold plate body 111, and the second sub-cavity 1012 is located on the second side of the cold plate body 111.

[0105] The driver board includes a driver substrate and multiple power components mounted on the driver substrate. The multiple power components mounted on the driver substrate include a fan driver chip, a compressor driver chip, a fan driver module, a compressor driver module, a fan interface, a communication interface, a thin film capacitor, an electrolytic capacitor, and a module power supply, etc.

[0106] The filter board includes a filter substrate 221 and a plurality of power components mounted on a drive substrate. The plurality of power components mounted on the filter substrate 221 include a common-mode inductor and at least one of a varistor, a differential-mode capacitor and a common-mode capacitor.

[0107] Among them, the power components on the filter substrate 221 generate less heat when they are working than the power components on the drive substrate, and the need for disassembly and maintenance is greater. Therefore, in this embodiment, the frequency converter drive module is divided into three parts: drive board, filter board and reactor 200, and they are respectively disposed in two heat dissipation cavities 101 on opposite sides of the cold plate body 111. This makes it easier to place each power component of the frequency converter drive module in a suitable cavity so as to take into account both disassembly and maintenance and heat dissipation needs. When the electronic control device 1 is used for the outdoor unit 2 of the HVAC equipment, the first side of the cold plate body 111 is set facing the maintenance port 200a of the outdoor unit 2. The power components of the drive board, which require more frequent maintenance and replacement, can be placed on the first side of the cold plate body 111 for easy disassembly and maintenance. At the same time, the cold plate body 111 can also dissipate heat from the power components of the drive board. The filter board and the reactor 200 are located on the side of the cold plate body 111 facing away from the maintenance port 200a, so that the second sub-cavity 1012 is positioned near the air duct of the outdoor unit 2. The gas flowing in the air duct and the heat exchange medium flowing in the heat dissipation channel 1111 are used together to dissipate heat and cool down the power components in the second sub-cavity 1012.

[0108] In some embodiments, the frequency converter drive module may include two drive boards, and correspondingly, two reactors 200, which are electrically connected to the two drive boards in a one-to-one correspondence. The two reactors 200 are located on the same side of the cold plate body 111, both within the second sub-cavity 1012. This embodiment improves the heat dissipation efficiency of the reactors 200 by modifying their structure. Even if the two reactors 200 are installed in the same space and are close together, their heat can be dissipated, preventing heat accumulation.

[0109] In the second direction H, the reactor 200 covers part of the heat dissipation channel 1111, so that the heat exchange medium flowing in the heat dissipation channel 1111 can carry away the heat of the reactor 200 in a timely manner, so as to efficiently dissipate heat from the reactor 200.

[0110] In a direction perpendicular to the second direction H, the reactor 200 and the filter board are spaced apart, allowing the heat generated by the reactor 200 to dissipate more smoothly into the heat dissipation cavity 101 where it is located, preventing thermal interference between the reactor 200 and the power components mounted on the filter substrate 221, and facilitating the independent assembly and disassembly of the reactor 200 and the filter board.

[0111] In some embodiments, such as Figure 19As shown, in the second direction H, the filter substrate 221 and the cold plate body 111 are spaced apart, allowing airflow to pass through the space between them. This facilitates smooth gas circulation within the heat dissipation cavity 101, efficiently balancing the temperature of various areas within the cavity. Multiple power components of the filter plate are mounted on one side of the filter substrate 221, with the components positioned on the side facing the cold plate body 111. This design promotes efficient heat dissipation from the power components on the filter substrate 221, reducing heat loss to the heat dissipation cavity 101. Optionally, the power components on the filter substrate 221 are bonded to the cold plate body 111 via a thermal pad, further improving heat transfer efficiency.

[0112] In this embodiment of the application, when the first sub-cavity 1011 and the second sub-cavity 1012 are located on opposite sides of the cold plate body 111, in some embodiments, the main housing 10 further includes a first cover 11 and a second cover 12. The heat dissipation structure includes a first enclosure 1121, which is integrally formed with the cold plate body 111. In the second direction H, the cold plate body 111 has a first side and a second side arranged opposite to each other. The first enclosure 1121 and the first cover 11 are both located on the first side of the cold plate body 111, and the first cover 11 is sealed. The first cover 11, the first cover 11, and the cold plate body 111 are installed on the first enclosure 1121, and together they form a first sub-cavity 1011. The second cover 12 is located on the second side of the cold plate body 111 and is sealed to the cold plate body 111. The cold plate body 111 and the second cover 12 together form a second sub-cavity 1012. The outer surfaces of the first enclosure 1121, the first cover 11, and the second cover 12 are all exposed to the outside of the electrical control box. The first enclosure 1121, the first cover 11, and the second cover 12 can also be used for heat dissipation.

[0113] The main body of the cold plate 111 and the first enclosure plate 1121 enclose each other to form a box-shaped cavity. Both the main body of the cold plate 111 and the first enclosure plate 1121 can be used to generate heat, not limited to traditional unidirectional heat dissipation. The main box 10 is constructed as a box-shaped heat sink, which can receive the heat dissipated by the power components from multiple directions such as the bottom and the circumference, forming multi-directional radiative heat dissipation. The main body of the cold plate 111 and the first enclosure plate 1121 work together to maximize the space and direction of radiative heat dissipation. The heat generated by the power components can be quickly diffused to either the main body of the cold plate 111 or the first enclosure plate 1121, realizing rapid air cooling in the first sub-cavity 1011 and uniformly reducing the temperature in all parts of the first sub-cavity 1011. Meanwhile, both the cold plate body 111 and the first enclosure 1121 are located on the outer layer. The first enclosure 1121 surrounds the power element and directly utilizes the assembly space of the power element in the second direction H to set up the first enclosure 1121 for heat dissipation. The first enclosure 1121 and the cold plate body 111 together form a box to accommodate the power element, eliminating the need for additional installation space, greatly simplifying the structure of the electronic control device 1, and making it more conducive to the miniaturization design of the electronic control device 1.

[0114] In some embodiments, the main housing 10 may further include a main control cover 13, and the heat dissipation structure includes a second enclosure 1122. The second enclosure 1122 is integrally disposed with the cold plate body 111. The second enclosure 1122 and the main control cover 13 are both disposed on the first side of the cold plate body 111. The main control cover 13 is sealed and installed on the second enclosure 1122, and the main control cover 13, the second enclosure 1122 and the cold plate body 111 enclose to form a main control cavity 1013. The main control module is disposed in the main control cavity 1013. Similarly, the cold plate body 111 and the second enclosure 1122 enclose to form a box-shaped cavity, which helps to improve heat dissipation efficiency.

[0115] In this embodiment, the first cover 11 is sealed and installed on the first enclosure plate 1121, and the second cover 12 is sealed and installed on the cold plate body 111, providing a good sealing environment for the drive plate, filter plate, and reactor 200. Since the drive plate, located in different cavities, needs to be electrically connected to the filter plate and reactor 200 respectively, such as... Figure 20As shown, the cold plate body 111 also has a first power connection opening and a second power connection opening 1113. The first power connection opening is connected to the first sub-cavity 1011 and the second sub-cavity 1012 respectively, and the second power connection opening 1113 is connected to the first sub-cavity 1011 and the second sub-cavity 1012 respectively. The electronic control device 1 also includes a first power connection socket 310 and a second power connection socket 320. The first power connection socket 310 passes through the first power connection opening, and one end of the first power connection socket 310 is electrically connected to the drive board and the other end is electrically connected to the coil 211. The second power connection socket 320 passes through the second power connection opening 1113, and one end of the second power connection socket 320 is electrically connected to the drive board and the other end is electrically connected to the filter board. This application creates a first sub-cavity 1011 and a second sub-cavity 1012 on the main body 111 of the cold plate, without damaging the sealing structure between the first cover 11 and the first enclosure 1121, or the sealing structure between the second cover 12 and the main body 111 of the cold plate. This allows the first sub-cavity 1011 and the second sub-cavity 1012 to maintain good sealing performance, thereby meeting the heat dissipation, disassembly and maintenance and sealing requirements of multiple power components.

[0116] Optionally, the first power connector 310 is detachably mounted on the cold plate body 111 and seals the first power connection opening, and the second power connector 320 is detachably mounted on the cold plate body 111 and seals the second power connection opening 1113, so that the first sub-cavity 1011 and the second sub-cavity 1012 are independent of each other, preventing thermal interference between the power components provided in the first sub-cavity 1011 and the second sub-cavity 1012, and also allowing the coil 211 of the reactor 200 to be exposed to the second sub-cavity 1012.

[0117] 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.

[0118] 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. A reactance, characterized by The reactor includes a battery cell, thermally conductive adhesive, and a base; The battery cell includes a battery cell connection portion and at least one winding unit. Each winding unit includes a battery cell post and a coil. The battery cell post and the battery cell connection portion form a winding space. The battery cell is disposed on the base and forms a filling space with the base. The base has a first plane, which is the mounting surface of the reactance. The battery cell post is disposed in a direction parallel to the first plane. The coil is disposed around the battery cell post and passes through the winding space. At least a portion of the coil is exposed in the filling space, and at least a portion of the thermally conductive adhesive is filled in the filling space.

2. The reactance according to claim 1, characterized in that, The coil is composed of multiple sub-coils formed by wires surrounding the cell post. The sub-coils are stacked sequentially in a first direction parallel to the first plane. The coil has a first side and a second side facing away from each other in a second direction perpendicular to the first plane. The first side is exposed in the filling space. Both the first side and the second side are formed by stacking some of the wires constituting the sub-coil. At least a portion of the thermally conductive adhesive fills the filling space and covers the first side.

3. The reactance according to claim 2, characterized in that, Both the first side and the second side are located outside the winding space; A portion of the thermally conductive adhesive is disposed in the winding space and fills the gap between the cell connection portion and the winding unit.

4. The electrical reactance of claim 3, wherein, The winding space has a first opening end and a second opening end disposed opposite to each other in the second direction, wherein in the second direction, the first opening end is disposed adjacent to the first plane relative to the second opening end; The thermally conductive adhesive fills the winding space; or, In the second direction, the thermally conductive adhesive is spaced apart from the second opening end.

5. The reactance according to claim 3, characterized in that, The base surrounds at least a portion of the battery cell to support the battery cell, and in the second direction, the battery cell and the base form the filling space. The cell connection portion has a first surface and a second surface disposed opposite to each other in the second direction, and the first surface is adjacent to the first plane relative to the second surface. In the second direction, the base is spaced apart from the second surface.

6. The electrical reactor according to any of claims 1 to 5, characterized in that The battery cell also includes two terminals electrically connected to the coil. The base and the battery cell connection portion enclose a wiring channel that communicates with the glue-filled space, and the terminals pass through the wiring channel.

7. The electrical reactance of claim 6, wherein, In a second direction perpendicular to the first plane, the wiring channel is located on the side of the cell connection portion facing the first plane.

8. The reactance according to claim 6, characterized in that, The reactor also includes two terminals, one end of each terminal being electrically connected to one of the terminals and the other end being electrically connected to an external device. The base also has two mounting protrusions, one of which is mounted on the mounting protrusion and the other is mounted on the mounting protrusion.

9. The electrical reactance of claim 8, wherein, The wiring lug includes a first power terminal and a folded section. The first power terminal is detachably mounted on the mounting protrusion. The folded section is connected to one end of the first power terminal and extends from the first power terminal toward the side where the first plane is located to connect with the wiring terminal.

10. The electrical reactance of claim 9, wherein, The connector includes a second power terminal, which is connected to the other end of the first power terminal. At least a portion of the second power terminal extends in a direction parallel to the first plane, and the second power terminal is electrically connected to the external device.

11. The electrical reactance of claim 10, wherein, In a second direction perpendicular to the first plane, the surface of the mounting protrusion facing away from the first plane is provided with a mounting groove, the first electrical terminal is disposed in the mounting groove, and the surface of the first electrical terminal is in contact with the surface of the mounting protrusion defining the mounting groove.

12. The electrical reactance of claim 8, wherein, The base includes multiple spaced-apart assembly parts, each of which is independently and detachably mounted to the mounting surface of the external device by means of snap-fit ​​or screw fastening.

13. The reactance according to claim 12, characterized in that, The base also includes a support body, which is disposed on the outer periphery of the battery cell, and the support body and the battery cell form the glue-filling space. The surface of the support body includes the first plane. Each of the mounting protrusions is connected to the support body via an assembly part, and the mounting protrusions are spaced apart from the support body.

14. The reactance according to claim 13, characterized in that, The support body, the mounting protrusion, and the assembly part are arranged on the same plane on one side facing the mounting surface of the external device; In a second direction perpendicular to the first plane, the height of the mounting protrusion is higher than the height of the assembly portion.

15. The reactance according to any one of claims 2-5 and 7-14, characterized in that, The battery cell includes a winding unit, and the battery cell connection portion is arranged around the outer periphery of the winding unit to form a frame-like structure; or... The battery cell includes two winding units arranged side by side along a third direction. The battery cell posts of each winding unit are arranged along a second direction. The third direction is perpendicular to the second direction and parallel to the first plane. The number of battery cell connection parts is two and they are arranged opposite each other along the second direction. Each battery cell connection part is connected to the two battery cell posts respectively.

16. The reactance according to claim 15, characterized in that, The base is integrally formed with the battery cell connection part; and / or The base is made of plastic.

17. The reactance according to claim 15, characterized in that, The reactance also includes a thermal pad, which is selected from at least one of elastic thermal pads and metal thermal pads; Wherein, at least a portion of the thermal pad is disposed on the side of the thermally conductive adhesive facing the first plane; and / or, At least a portion of the thermal pad is disposed on the first plane of the base.

18. An electrically controlled device, characterized by include: The main housing includes a heat dissipation structure, the heat dissipation structure including a cold plate body having a first heat dissipation plane, and the main housing further including at least one heat dissipation cavity disposed on one side of the cold plate body in a direction perpendicular to the first heat dissipation plane; and A plurality of power components, wherein the plurality of power components include a reactance as described in any one of claims 1-17, the reactance being disposed in the heat dissipation cavity and mounted to the first heat dissipation plane, the first plane of the reactance being disposed facing the first heat dissipation plane.

19. The electronic control device according to claim 18, characterized in that, The cold plate body has heat dissipation channels for the flow of heat exchange medium; In a second direction perpendicular to the first plane, the reactance covers a portion of the heat dissipation channel.

20. The electronic control device according to claim 18, characterized in that, The plurality of heat dissipation cavities include a first sub-cavity and a second sub-cavity, and in a second direction perpendicular to the first plane, the first sub-cavity and the second sub-cavity are respectively disposed on opposite sides of the cold plate body; The electronic control device includes a drive board and a filter board. The drive board is located in the first sub-cavity, and the filter board and the reactor are located in the second sub-cavity. The coil of the reactor and the filter board are electrically connected to the drive board, respectively.

21. The electronic control device according to claim 20, characterized in that, The electronic control device further includes a first power connector, which is mounted on the cold plate body; The battery cell also includes two terminals electrically connected to the coil. The reactance also includes two lugs corresponding one-to-one with the two terminals. One end of the lug is electrically connected to one of the terminals, and the other end of the lug is electrically connected to the drive board through the first connector.

22. The electrically controlled device of claim 18, wherein, The reactance also includes a thermal pad, which is selected from at least one of elastic thermal pads and metal thermal pads, and the thermal pad is disposed between the first heat dissipation plane and the first plane.

23. A heating and ventilation apparatus, characterized by The device includes a housing and an electronic control device as described in any one of claims 18-22, wherein the electronic control device is disposed within the housing. The housing is provided with an inspection port, and the electronic control device is located at the inspection port.

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