Electric control assembly, electric control box and heat pump unit

Abstract

The utility model belongs to the technical field of electric appliances, and particularly relates to an electric control assembly, an electric control box and a heat pump unit. The tray is used for being connected with a box body of the electric control box, the driving plate covers the tray, and a heat dissipation cavity is formed between the driving plate and the tray; the heat dissipation component is located in the heat dissipation cavity, and the heat dissipation component is configured to dissipate heat for the driving board when the driving board runs; wherein a first gap is formed between at least part of the bottom of the heat dissipation component and the tray, the tray is provided with a drainage hole communicated with the heat dissipation cavity, and the drainage hole is used for guiding water in the heat dissipation cavity out of the box body, so that condensate water can be drained out of the heat dissipation cavity in time through the drainage hole, and the driving plate is prevented from being damaged.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, specifically relating to an electrical control component, an electrical control box, and a heat pump unit. Background Technology

[0002] The electrical control box is responsible for managing and controlling the operation of the entire heat pump unit and is a relatively important component of the heat pump unit.

[0003] An electrical control box typically includes a box body and a drive board housed inside the box. The drive board is responsible for controlling the operation of high-power devices such as motors and compressors. Because it needs to handle high current, the power components on the drive board (such as power transistors, metal-oxide-semiconductor field-effect transistors, insulated-gate bipolar transistors, etc.) usually generate significant heat. If the heat of the drive board cannot be dissipated in time, it may cause the drive board to malfunction and affect the control effect.

[0004] A common approach to this is to use refrigerant to dissipate heat from the drive board. However, when using refrigerant, the temperature changes of the drive board can cause condensation inside the enclosure. If this condensation accumulates inside the enclosure for a long time, it can easily corrode the drive board and cause damage. Utility Model Content

[0005] This application provides an electronic control component, an electronic control box, and a heat pump unit to solve the problem that condensate generated when the existing drive board dissipates heat through refrigerant can easily corrode the drive board.

[0006] In a first aspect, this application provides an electronic control component, comprising:

[0007] Driver board;

[0008] A tray for connecting to the body of the electrical control box, with the drive board covering the tray and forming a heat dissipation cavity between the drive board and the tray;

[0009] A heat dissipation component is located inside the heat dissipation cavity and is configured to dissipate heat from the drive board during operation.

[0010] The bottom of the heat dissipation component has at least a first gap with the tray, and the tray is provided with a drain hole communicating with the heat dissipation cavity. The drain hole is used to guide water in the heat dissipation cavity to the outside of the box.

[0011] In one possible design, the bottom of the heat dissipation cavity has a first end and a second end, the bottom of the heat dissipation cavity is inclined so that the height of the first end is greater than the height of the second end, and the water inlet of the drain hole is located at the second end.

[0012] In one possible design, the heat dissipation component includes:

[0013] A first heat sink, one side of which is in contact with the drive plate;

[0014] The second heat sink is located below the first heat sink and cooperates with the first heat sink to form a positioning groove. The second heat sink is connected to the tray.

[0015] A heat dissipation pipe is inserted into the positioning groove and is used to supply refrigerant flow so as to dissipate heat from the drive plate through the refrigerant.

[0016] In one possible design, the tray is provided with a support portion located within the heat dissipation cavity, and the second heat dissipation plate is disposed on the support portion.

[0017] In one possible design, the tray is provided with a mounting groove extending in a direction away from the drive plate, and the mounting groove forms the heat dissipation cavity when closed by the drive plate;

[0018] One side of the tray is provided with an clearance notch and a pipe hole in an up-down relationship, and the pipe hole communicates with the mounting groove and the clearance notch;

[0019] It also includes a baffle, which is configured to engage with the tray when the heat dissipation pipe is inserted into the pipe hole to close the clearance gap.

[0020] In one possible design, a sealing part is provided inside the tube hole to close the tube hole. The sealing part is connected to the tray through a weak connection part, which is configured to be broken by external force when the heat dissipation tube is inserted into the tube hole, so that the sealing part is disengaged from the tube hole.

[0021] In one possible design, the tray has a cable groove on at least one side for placing pipelines connected to the drive board.

[0022] In one possible design, the trough includes a main body and an inlet that are interconnected, the width of the inlet gradually decreasing along the direction close to the main body, and the width of the side of the inlet connected to the main body is smaller than the width of the main body.

[0023] Secondly, this application provides an electrical control box, including a box body and an electrical control component as described in any of the first aspects, wherein a drive board of the electrical control component is connected to the box body, and the outlet end of the drain hole on the drive board extends to the outside of the box body.

[0024] Thirdly, this application provides a heat pump unit, including a housing, a compressor, a heat exchanger, and a partition plate. The partition plate is located inside the housing and divides the housing into a first mounting cavity and a second mounting cavity. The compressor is located in the first mounting cavity, and the heat exchanger is located in the second mounting cavity.

[0025] It also includes the electronic control component as described in any one of the first aspects or the electronic control box as described in the second aspect, wherein the tray of the electronic control component is provided with a slot, the slot engaging with the top of the partition plate, and the electronic control component is at least partially located within the first mounting cavity so that the drain hole communicates with the first mounting cavity.

[0026] The electrical control component, electrical control box, and heat pump unit provided in this application are configured with a drive plate, a tray, and a heat dissipation component. The drive plate covers the tray, forming a heat dissipation cavity between the drive plate and the tray. The heat dissipation component is located inside the heat dissipation cavity to dissipate heat from the drive plate. At the same time, there is a first gap between the bottom of the heat dissipation component and the tray, so that the generated condensate falls into the first gap and can leave the electrical control component through the drain hole on the tray. Moreover, the drain hole guides the condensate to the outside of the electrical control box, so that the condensate will not accumulate in the electrical control component or the box and can be discharged in time, thereby avoiding the condensate from affecting the drive plate and providing a better protection effect for the drive plate. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] Figure 1 This is a schematic diagram of the structure of the electronic control component provided in the embodiments of this application;

[0029] Figure 2 A cross-sectional view of the electronic control component provided in an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the tray in the electronic control assembly provided in the embodiments of this application;

[0031] Figure 4 A cross-sectional view of the tray in the electronic control assembly provided in the embodiments of this application;

[0032] Figure 5 An assembly diagram of the tray and baffle in the electronic control assembly provided in the embodiments of this application;

[0033] Figure 6 for Figure 5 A magnified structural diagram of the middle circle A;

[0034] Figure 7 for Figure 5A magnified structural diagram of the middle circle B;

[0035] Figure 8 This is a schematic diagram of the structure of the baffle in the electronic control assembly provided in the embodiments of this application;

[0036] Figure 9 This is a schematic diagram of the internal structure of the electrical control box provided in an embodiment of this application;

[0037] Figure 10 A schematic diagram of the bottom structure of the electrical control box provided in an embodiment of this application;

[0038] Figure 11 for Figure 10 A magnified structural diagram of the middle circle C.

[0039] Figure label:

[0040] 100-Drive board, 200-Tray, 210-Mounting slot, 220-Support part, 230-Drain hole, 240-Wire groove, 241-Inlet part, 242-Main body part, 250-Side plate, 260-Screw post, 270-Card slot, 280-Sealing part, 290-Weak connection part, 300-Heat dissipation component, 310-Second heat dissipation plate, 320-First heat dissipation plate, 330-Heat pipe, 340-Positioning slot, 400-Baffle, 410-Connecting ear, 420-Snap fastener, 500-Box body.

[0041] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] In existing heat pump units, such as air conditioners, the drive board of the electronic control components generates heat during operation. If the heat is not dissipated in time, it will damage the drive board. Therefore, heat dissipation of the drive board must be considered in the design.

[0044] There are two main methods for heat dissipation of the driver board. One is air cooling, where a heat sink is installed under the heat dissipation module of the driver board. The heat sink consists of a base plate and several thin plates. The heat sink is installed on the fan side of the heat pump unit, and the fan blades generate airflow to dissipate heat from the heat sink. This air cooling design is relatively simple and easy to arrange. The disadvantage is that it occupies a lot of space, taking up space on the fan side and obstructing the airflow to the fan blades. Moreover, since the fan side is not a sealed space, a sheet metal part is needed to shield the heat sink from water and enclose it, which increases the heat dissipation cost.

[0045] Another heat dissipation method is refrigerant cooling, which uses low-temperature refrigerant in the refrigerant pipes to dissipate heat from the heat-generating modules of the drive board. The refrigerant pipes are in contact with the heat sink fins, and heat exchange occurs between the heat sink fins and the heat-generating modules of the drive board, reducing the drive board temperature. This method requires less space, as the heat sink fins for air cooling require a substrate and several thin sheets, while refrigerant cooling only requires a substrate, resulting in a smaller size. However, this method requires the refrigerant pipes and heat sink fins to be fixed to the electrical control box, necessitating the removal of the entire electrical control box for disassembly and maintenance, making repairs inconvenient. Furthermore, the box cannot be properly sealed, posing a risk of water splashing into the electrical control box from the fan blades during heat pump unit operation, and condensation from the drive board cannot be drained in time, potentially corroding the drive board. Additionally, the box and drive board are not completely sealed, allowing insects to crawl in through gaps and alight on the component pins of the drive board, causing short circuits.

[0046] To avoid the aforementioned problems, this application provides an electrical control component and an electrical control box. The drive board is mounted on a tray, and the tray connects to the control box body. During production and maintenance, the drive board can be replaced individually without replacing the entire control box. The control box connects to the heat pump unit via a snap-fit ​​part on the tray, reducing the use of screws and improving production efficiency. Drainage holes on the tray allow water to drain out of the box, preventing external water from corroding the drive board and also draining condensate from inside the control box.

[0047] It is understood that the electrical control box and electrical control components in this application embodiment can be used not only for heat pump units, but also for other equipment with similar needs. This embodiment does not limit them.

[0048] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0049] In some embodiments, see Figure 1 and Figure 2 As shown, the electronic control assembly includes a drive board 100 and a heat dissipation component 300. The heat dissipation component 300 dissipates heat from the drive board 100 through a refrigerant. The drive board 100 is one of the core components of the electronic control box, responsible for controlling and managing the operation of the heat pump unit to achieve control of key components such as the compressor, fan, and solenoid valve. It typically includes components such as a microcontroller, power driver, communication module, and power management module, which are well known to those skilled in the art and will not be described in detail in this embodiment.

[0050] The difference between the electronic control component in this embodiment and the conventional electronic control component is that it also includes a tray 200, which is used to connect to the housing 500 of the electronic control box. The drive plate 100 is placed on the tray 200, thereby forming a heat dissipation cavity between the tray 200 and the drive plate 100. The heat dissipation component 300 is located in the heat dissipation cavity. At the same time, when installing the heat dissipation component 300, at least part of the heat dissipation component 300 is raised so that at least part of the heat dissipation component 300 has a first gap with the tray 200 in the vertical direction. This allows the condensate generated by the drive plate 100 during operation to enter the first gap and not accumulate on the heat dissipation component 300. In addition, the tray 200 is provided with a drain hole 230 communicating with the heat dissipation cavity. The drain hole 230 is used to guide the water in the heat dissipation cavity to the outside of the housing 500 of the electronic control box.

[0051] Alternatively, the tray 200 may extend at least partially outside the box body 500, and the drain hole 230 may be provided on the portion of the tray 200 extending outside the box body 500 to guide water to the outside of the box body 500. Or, a connection hole may be provided on the box body 500, and a pipe may be connected to the drain hole 230 through the connection hole to guide the water in the drain hole 230 to the outside of the box body 500.

[0052] It is understandable that the drain hole 230 can be located at the lower end of the tray 200 or at the bottom of the tray 200, so as to drain the water in the heat dissipation cavity in a timely manner, so as to prevent excessive water in the heat dissipation cavity from affecting the operation of the drive board 100.

[0053] During use, due to the first gap between the bottom of the heat dissipation component 300 and the tray 200, the generated condensate will fall into the first gap and can leave the electronic control component through the drain hole 230 on the tray 200. Moreover, the drain hole 230 guides the condensate to the outside of the box 500 of the electronic control box, so that the condensate will not accumulate in the electronic control component or the box 500 and can be discharged in time, thereby avoiding the condensate from affecting the drive board 100 and providing a better protection effect for the drive board 100.

[0054] Furthermore, a second gap may be provided between the periphery of the heat dissipation component 300 and the cavity wall of the heat dissipation cavity, so that condensate on the drive plate 100 can enter the first gap from the second gap and then be discharged through the drain hole 230, without falling onto the heat dissipation component 300.

[0055] In some embodiments, the heat dissipation component 300 includes a first heat dissipation plate 320, a second heat dissipation plate 310, and a heat pipe 330.

[0056] The first heat sink 320 contacts the drive plate 100 on one side for heat exchange. The second heat sink 310 is located below the first heat sink 320 and cooperates with the first heat sink 320 to form a positioning groove 340. The first heat sink 320 and the second heat sink 310 can be connected by common methods such as bolts, adhesives, and snap-fits. A groove is provided on the side of the first heat sink 320 and the second heat sink 310 that are in contact with each other. After the first heat sink 320 and the second heat sink 310 are connected, their grooves are matched to form the positioning groove 340, which fixes the heat sink 330 in the positioning groove 340 and limits its position. The second heat sink 310 is connected to the tray 200. The heat sink 330 is used to supply refrigerant flow to dissipate heat from the drive plate 100.

[0057] The first heat sink 320 and the second heat sink 310 can be made of common materials with good thermal conductivity, such as aluminum sheets, so that the refrigerant can effectively exchange heat with the gas in the heat dissipation cavity and the drive plate 100, thereby reducing the temperature of the drive plate 100.

[0058] Specifically, during installation, the second heat sink 310 is first fixed to the tray 200, and then the drive board 100 is fixed to the tray 200 with bolts, etc. This not only facilitates the installation of the line, but also allows the drive board 100 to be removed directly when it needs to be repaired or replaced in the future, without having to disassemble the first heat sink 320, the second heat sink 310 and the heat pipe 330, which can effectively reduce the difficulty of maintenance and improve the convenience of maintenance.

[0059] Further, please see Figure 2 and Figure 3As shown, in order to facilitate the connection between the second heat sink 310 and the tray 200, a support part 220 located in the heat dissipation cavity can be provided on the tray 200. The second heat sink 310 is provided on the support part 220. The support part 220 supports the second heat sink 310 and lifts the second heat sink 310, so that there is a first gap between the second heat sink 310 and the tray 200.

[0060] For example, the support 220 can be a plurality of support columns disposed in the heat dissipation cavity, the top of which is connected to the second heat dissipation plate 310 by common means such as bolts or adhesive.

[0061] In some embodiments, the tray 200 can be made of plastic, which not only effectively supports the drive plate 100, but is also easy to process and inexpensive.

[0062] In order to facilitate the connection between the tray 200 and the drive plate 100, multiple screw posts 260 can be set on the edge of the tray 200. Screws can be screwed into the screw posts 260 through the corresponding holes on the drive plate 100, so as to achieve quick connection between the drive plate 100 and the tray 200, and disassembly is also relatively convenient.

[0063] Further, please see Figure 3 and Figure 4 As shown, a mounting groove 210 can be provided on the tray 200. The mounting groove 210 extends in the direction away from the drive plate 100, so that the side of the tray 200 away from the drive plate 100 has a protrusion. When the drive plate 100 is placed on the tray 200, the mounting groove 210 can be closed to form a heat dissipation cavity.

[0064] In other areas of the tray 200, multiple reinforcing ribs can be provided to enhance the strength of the tray 200. Furthermore, the upper surface of the reinforcing ribs can be flush with the upper surface of the mounting groove 210 wall. This allows the drive plate 100 to be supported simultaneously by the edges of the tray 200, the reinforcing ribs, and the mounting groove 210 wall when it is placed on the tray 200. This also helps to create a seal, preventing water or insects from affecting the operation of the drive plate 100.

[0065] When assembling with the box body 500 of the electrical control box, a groove can be cut in the box body 500 so that part of the mounting groove 210 extends to the outside of the box body 500 through the groove, thereby allowing the drain hole 230 to extend to the outside of the box body 500 to drain water from the electrical control box. At the same time, the corresponding part of the mounting groove 210 is locked in the groove, which also helps to limit the relative position between the tray 200 and the box body 500, making it easier to fix the tray 200 on the box body 500.

[0066] Furthermore, in order to facilitate the drainage of water from the heat dissipation cavity and prevent water from accumulating inside, the bottom plate of the heat dissipation cavity has a first end and a second end. The bottom plate of the heat dissipation cavity is inclined so that the height of the first end in the vertical direction is greater than the height of the second end, that is, the first end is located above the second end. The inlet of the drain hole 230 is located at the second end, so that the water in the heat dissipation cavity can automatically flow towards the second end. When it flows to the lowest point, it will directly leave the heat dissipation cavity through the drain hole 230, thus preventing water from accumulating inside the heat dissipation cavity.

[0067] For example, the inclination angle of the base plate relative to the horizontal plane can be around 3°, which can guide the water flow to the drain hole 230 without taking up too much space.

[0068] In some embodiments, see Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a clearance notch and a pipe hole are provided on one side of the tray 200 in an up-down relationship. The pipe hole is connected to the mounting groove 210 and the clearance notch. This is equivalent to providing a mounting hole and a clearance notch on one side of the groove wall of the mounting groove 210. The clearance notch is located at the top of the groove wall, so that when the heat dissipation component 300 is placed into the mounting groove 210 through the opening above the mounting groove 210 during installation, the heat dissipation pipe 330 can be inserted into the pipe hole through the clearance notch and limited by the pipe hole.

[0069] To prevent water or insects from entering the heat dissipation cavity through the clearance opening during use, the electronic control component also includes a baffle 400. When the heat dissipation pipe 330 is inserted into the pipe hole, the baffle 400 engages with the tray 200 to seal the clearance opening.

[0070] Specifically, buckles 420 with a certain degree of elasticity can be set at both ends of the baffle 400, and a protrusion for the buckles 420 to engage is set on the tray 200. After the heat dissipation pipe 330 is installed, the baffle 400 can be fixed on the tray 200 by directly engaging the buckles 420 with the protrusion, and the gap can be covered and avoided by the baffle 400.

[0071] For example, in use, the heat dissipation pipe 330 needs to extend outside the electrical control box. To facilitate connection, the pipe hole can be set on the part of the mounting groove 210 that extends outside the box body 500, while the clearance notch is located entirely or partially inside the box body 500. After the baffle 400 and the tray 200 are engaged, the baffle 400 can block the clearance notch and close the gap between the box body 500 and the mounting groove 210.

[0072] For example, the baffle 400 has limiting ears at both ends, and the tray 200 is provided with limiting grooves that abut against the limiting ears. During assembly, the baffle 400 moves in the horizontal direction so that the limiting ears are inserted into the limiting grooves, and the buckle 420 is engaged with the protrusion. The limiting ears limit the position of the baffle 400 relative to the tray 200 in the vertical direction, and the buckle 420 limits the position of the baffle 400 relative to the tray 200 in the horizontal direction, thereby effectively limiting the baffle 400.

[0073] When the heat dissipation pipe 330 is inserted into the pipe hole, the heat dissipation pipe 330 can fill the pipe hole, preventing insects and other objects from entering the heat dissipation cavity through the pipe hole. However, during the transportation process after production, the heat dissipation pipe 330 has not yet been connected to the tray 200, at which time insects may enter the mounting slot 210 through the pipe hole.

[0074] To address this, during the production of the tray 200, a sealing part 280 can be provided inside the tube hole. The sealing part 280 is connected to the tray 200 via a weak connection part 290. The weak connection part 290 can be a thin connecting piece or a connecting point. When the heat dissipation pipe 330 is inserted into the tube hole, the weak connection part 290 can be broken off with a slight pull, so that the sealing part 280 can be removed from the tube hole.

[0075] During the transportation of pallet 200 from the factory, the sealing part 280 blocks the pipe hole to prevent insects and other objects from entering the installation groove 210 through the pipe hole.

[0076] In some embodiments, at least one side of the tray 200 is provided with a wire groove 240, which is used to place the pipeline connected to the drive board 100 and can be routed in a standardized manner through the wire groove 240.

[0077] For example, grooves 240 can be provided on both opposite sides of the pallet 200. In order to reduce costs and reduce the weight of the pallet 200, ribs can be raised on both sides of the pallet 200 to form limiting plates. When the two limiting plates are opposite each other, grooves 240 can be formed between the two limiting plates.

[0078] It is understood that one or more cable trays 240 may be provided on each side of the tray 200 according to the requirements for fixing the pipeline, and this embodiment does not limit this.

[0079] Furthermore, a side plate 250 can be provided on the upper side of the tray 200, with the bottom of the drive plate 100 resting on the side plate 250. The screw post 260 is located inside the side plate 250. The side plate 250 can seal the gap between the drive plate 100 and the tray 200, preventing water and insects from entering between the drive plate 100 and the tray 200. The cable tray 240 is provided on the outer side of the side plate 250 for connection.

[0080] In addition, a clearance notch can be provided on the side plate 250, the baffle 400 is snapped into the side plate 250, and part of the baffle 400 extends to the outside of the drive plate 100, closing the gap between the tray 200 and the drive plate 100.

[0081] The cable tray 240 includes a main body portion 242 and an inlet portion 241 that are interconnected. The width of the inlet portion 241 gradually decreases along the direction close to the main body portion 242, and the width of the side of the inlet portion 241 connected to the main body portion 242 is smaller than the width of the main body portion 242.

[0082] Specifically, during use, the pipeline is pressed into the main body 242 from the inlet 241 for limiting. The inlet 241 is flared, making it easier for the pipeline to enter. The width of the main body 242 is greater than the width of the inlet 241. After the pipeline enters the main body 242, it can prevent the pipeline from leaving the inlet 241 in reverse, which can effectively improve the fixing effect of the cable tray 240 on the pipeline.

[0083] Understandably, for ease of processing, the pallet 200 can be a one-piece molded plastic part, that is, the wire groove 240, the mounting groove 210, the drainage hole 230, the side plate 250 and other structures are all one-piece molded.

[0084] This application also provides an electrical control box, which includes a box body 500 and the electrical control components in the above embodiments.

[0085] The box 500 is a sheet metal part, which typically includes a body and a cover plate. The cover plate is detachably connected to the body, and the two form a cavity for accommodating the electronic control components. The tray 200 is connected to the body, and after the tray 200 is connected to the body, the drain hole 230 extends to the outside of the box 500 for drainage.

[0086] During assembly, after the electronic control components are assembled as a whole, the tray 200 is fixed on the box 500, which is extremely convenient. When the drive board 100 needs to be repaired or replaced, the cover is opened and the drive board 100 is removed from the tray 200.

[0087] This application also provides a heat pump unit, which is similar to existing heat pump units, including a housing, a compressor, a heat exchanger and a partition plate. The partition plate is located inside the housing and divides the housing into a first mounting cavity and a second mounting cavity. The compressor is located in the first mounting cavity and the heat exchanger is located in the second mounting cavity.

[0088] The difference lies in that it also includes the electronic control component or the electronic control box containing the electronic control component in the above embodiments.

[0089] Please see Figure 9 , Figure 10 and Figure 11As shown, to facilitate connection, the tray 200 is provided with a slot 270, which engages with the top of the partition plate. That is, the tray 200 extends at least partially beyond the box body 500. The slot 270 is provided on the part of the tray 200 that extends beyond the box body 500. During assembly, the partition plate is inserted into the slot 270 from the top of the partition plate to fix the electrical control components to the partition plate. The tray 200 is also connected to the box body 500, so that the tray 200 can assist in connecting the box body 500 to the outer shell. At this time, only a few screws, such as one, need to be driven into the front and side of the box body 500 to fix the electrical control box to the outer shell. This setting can reduce the number of screws used, improve installation efficiency, and reduce installation costs.

[0090] For example, two opposing ribs can be formed on the side of the tray 200 away from the drive plate 100, and mutually cooperating protrusions can be provided on the opposite side of the two ribs. The protrusions form a slot 270, and the end of the slot 270 away from the drive plate 100 can be made into a funnel shape so that the partition plate can be inserted into the slot 270.

[0091] The thickness of the commonly used partition plate is about 3mm. Therefore, the distance between the two protrusions that are in contact with the partition plate can also be set at about 3mm to effectively engage with the partition plate, so that the electrical control box will not be displaced after being installed in the outer casing.

[0092] In some embodiments, after the tray 200 is snapped into the partition, the electronic control component extends at least partially into the first mounting cavity, such that the drain hole 230 can be located in the first mounting cavity and communicate with the first mounting cavity.

[0093] This configuration separates the drain hole 230 from the heat exchanger fan with a partition. Since the heat exchanger side needs air intake and is connected to the outside, the drain hole 230 and the fan are located on different sides. This avoids the problem of the fan blades splashing water into the electrical control box during rainy weather when the heat pump unit is running. It also prevents external water from flowing back into the electrical control box and provides better protection for the drive board 100.

[0094] In general, for heat pump units, using such electrical control components and boxes facilitates the installation of the drive board 100 and the heat dissipation component 300, avoiding the need to replace the entire structure just to replace the drive board 100 during production and maintenance. The tray 200 is secured to the partition plate via the slot 270, saving screws and improving production efficiency. The tray 200 has a drain hole 230, with the outlet of the drain hole 230 located within the first mounting cavity, preventing external water from entering the electrical control box and allowing condensate generated inside the electrical control box to drain to the outside. The heat dissipation pipe 330 extends out of the electrical control box through the pipe hole, and the baffle 400 blocks the clearance opening, preventing insects from entering the electrical control components. The wire groove 240 on the tray 200 standardizes the wiring of the drive board 100 and prevents the pipes from detaching from the wire groove 240, thereby reducing the risk of the pipes becoming detached from the drive board 100.

[0095] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electronic control component, characterized in that, include: Driver board (100); A tray (200) is used to connect to the housing (500) of the electrical control box. The drive plate (100) is placed on the tray (200) and forms a heat dissipation cavity between the drive plate (100) and the tray (200). A heat dissipation component (300) is located inside the heat dissipation cavity and is configured to dissipate heat from the drive plate (100) during operation. The bottom of the heat dissipation component (300) has at least a first gap with the tray (200), and the tray (200) is provided with a drain hole (230) communicating with the heat dissipation cavity. The drain hole (230) is used to guide water in the heat dissipation cavity to the outside of the box (500).

2. The electronic control component according to claim 1, characterized in that, The bottom of the heat dissipation cavity has a first end and a second end. The bottom of the heat dissipation cavity is inclined so that the height of the first end is greater than the height of the second end. The water inlet of the drain hole (230) is located at the second end.

3. The electronic control component according to claim 1, characterized in that, The heat dissipation component (300) includes: A first heat sink (320) is provided, with one side of the first heat sink (320) in contact with the drive plate (100); The second heat sink (310) is located below the first heat sink (320) and cooperates with the first heat sink (320) to form a positioning groove (340). The second heat sink (310) is connected to the tray (200). A heat dissipation pipe (330) is inserted into the positioning groove (340). The heat dissipation pipe (330) is used to supply refrigerant flow so as to dissipate heat from the drive plate (100) through the refrigerant.

4. The electronic control component according to claim 3, characterized in that, The tray (200) is provided with a support part (220) located in the heat dissipation cavity, and the second heat dissipation plate (310) is provided on the support part (220).

5. The electronic control component according to claim 3, characterized in that, The tray (200) is provided with a mounting groove (210) extending in a direction away from the drive plate (100), and the mounting groove (210) forms the heat dissipation cavity when it is closed by the drive plate (100); The tray (200) has an clearance notch and a pipe hole on one side in an up-down relationship, and the pipe hole communicates with the mounting groove (210) and the clearance notch; It also includes a baffle (400) configured to engage with the tray (200) when the heat dissipation pipe (330) is inserted into the pipe hole to close the clearance gap.

6. The electronic control component according to claim 5, characterized in that, The tube hole is provided with a sealing part (280) to close the tube hole. The sealing part (280) is connected to the tray (200) through a weak connection part (290). The weak connection part (290) is configured to be broken by external force when the heat dissipation tube (330) is inserted into the tube hole, so that the sealing part (280) is detached from the tube hole.

7. The electronic control component according to any one of claims 1-6, characterized in that, The tray (200) has a wire groove (240) on at least one side, the wire groove (240) being used to place the pipeline connected to the drive plate (100).

8. The electronic control component according to claim 7, characterized in that, The groove (240) includes a main body (242) and an inlet (241) that are connected to each other. The width of the inlet (241) gradually decreases along the direction close to the main body (242), and the width of the side of the inlet (241) connected to the main body (242) is smaller than the width of the main body (242).

9. An electrical control box, characterized in that, Includes a housing (500) and an electronic control assembly as described in any one of claims 1-8, wherein a drive plate (100) of the electronic control assembly is connected to the housing (500), and the outlet end of a drain hole (230) on the drive plate (100) extends outside the housing (500).

10. A heat pump unit, characterized in that, The device includes a housing, a compressor, a heat exchanger, and a partition plate. The partition plate is located inside the housing and divides the housing into a first mounting cavity and a second mounting cavity. The compressor is located in the first mounting cavity, and the heat exchanger is located in the second mounting cavity. It also includes the electronic control component according to any one of claims 1-8 or the electronic control box according to claim 9, wherein the tray (200) of the electronic control component is provided with a slot (270), the slot (270) engaging with the top of the partition plate, and the electronic control component is at least partially located in the first mounting cavity so that the drain hole (230) communicates with the first mounting cavity.

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