Electric control box and air conditioner

Abstract

The utility model discloses an electric control box and an air conditioner, the electric control box comprises a circuit board support and a box body, and a circuit board is arranged on the circuit board support; the box body is provided with a containing space, the circuit board support is arranged in the containing space, a box body back plate of the box body is provided with a sinking table, the sinking table and the circuit board are oppositely arranged, the distance between the sinking table and the circuit board is larger than the distance between the box body back plate and the sinking table, and the sinking table is provided with a grounding installation position used for installing a grounding screw. According to the electric control box, the safety distance between the grounding screw and the circuit board can be increased through the sinking table on the back plate of the box body, and the circuit board in the box body is protected from being in contact with the grounding screw, so that short circuit caused by the fact that the grounding screw breaks down the circuit board in the installation process can be prevented; the stability and the safety of the circuit board in the box body can be effectively improved, and the safety and the reliability of the electric control box are improved.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, and in particular to an electrical control box and an air conditioner. Background Technology

[0002] In modern refrigeration technology, air conditioners, as key devices for regulating indoor temperature and humidity, have internal structures whose rationality and safety directly affect performance and the safety of users' lives and property. The electrical control box, as one of the core components of an air conditioner, is responsible for controlling the power distribution and logical operation of the entire system; its safety and reliability are paramount. In related technologies, the power cord grounding screw hole of the electrical control box is usually designed directly on the back of the box. The short distance between this screw hole and the circuit board inside the control box makes it easy for long screws to puncture the circuit board during installation, causing a short circuit, which can damage the equipment or even lead to safety accidents, posing a safety hazard to users. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one objective of this application is to provide an electrical control box that, through a recessed platform on the back panel of the box, increases the safe distance between the grounding screw and the circuit board, protecting the circuit board inside the box from contact with the grounding screw. This prevents the grounding screw from puncturing the circuit board and causing a short circuit during installation, effectively improving the stability and safety of the circuit board within the box, and enhancing the safety and reliability of the electrical control box.

[0004] This application also proposes an air conditioner having the aforementioned electrical control box.

[0005] According to an embodiment of the first aspect of this application, the electrical control box includes: a circuit board bracket and a box body, wherein a circuit board is disposed on the circuit board bracket; the box body has an accommodating space, the circuit board bracket is disposed within the accommodating space, a recessed platform is disposed on the back plate of the box body, the recessed platform is disposed opposite to the circuit board, and the distance between the recessed platform and the circuit board is greater than the distance between the back plate of the box body and the recessed platform, and a grounding mounting position for installing a grounding screw is provided on the recessed platform.

[0006] According to the electrical control box of this application, the countersunk plate on the back panel of the box increases the safe distance between the grounding screw and the circuit board, protecting the circuit board inside the box from contact with the grounding screw. This prevents the grounding screw from puncturing the circuit board and causing a short circuit during installation, effectively improving the stability and safety of the circuit board inside the box, thereby enhancing the safety and reliability of the electrical control box. Simultaneously, the grounding screw's installation position on the countersunk plate also improves the ease of installation and stability of the grounding screw, thus contributing to improved grounding efficiency and reliability.

[0007] According to some embodiments of this application, the distance between the sinking platform and the back plate of the box is configured as d1, and satisfies: 8mm≤d1≤25mm.

[0008] In some embodiments, the distance between the circuit board and the recessed platform is configured as d2, and satisfies: 18mm≤d2≤30mm.

[0009] According to some embodiments of this application, the box body includes: a back panel, a side panel, a top panel, and a bottom panel. The side panel, the top panel, and the bottom panel surround the back panel, and the top panel is provided with protective ribs.

[0010] Furthermore, the electrical control box also includes: a rear cover, which is disposed on the side of the back plate of the box away from the circuit board support and adjacent to the protective rib, and the overlapping area of ​​the rear cover and the top plate of the box.

[0011] Furthermore, the rear cover includes: a rear cover back plate, a rear cover side plate, a rear cover bottom plate, and a rear cover top plate, wherein the rear cover side plate, the rear cover bottom plate, and the rear cover top plate surround the rear cover back plate, and the protective rib is disposed adjacent to the rear cover top plate.

[0012] Furthermore, a connecting flange is provided on the rear cover side panel, and the connecting flange is connected to the back panel of the box body.

[0013] Furthermore, the connecting flange is provided with a mounting spring, and the back plate of the box is provided with a mounting boss. The mounting boss protrudes towards the rear cover side plate and has an open end at one height. The mounting spring is adapted to extend into the mounting boss along the open end.

[0014] Furthermore, the mounting boss has a guide portion formed at one end with an open opening.

[0015] An air conditioner according to a second aspect of this application includes: an electrical control box as described in any of the above embodiments.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is an overall schematic diagram of an air conditioner according to an embodiment of this application;

[0019] Figure 2 This is an exploded view of an air conditioner according to an embodiment of this application;

[0020] Figure 3 This is an exploded view of the electrical control box according to an embodiment of this application;

[0021] Figure 4 This is a front view of the electrical control box according to an embodiment of this application;

[0022] Figure 5 yes Figure 4 Middle AA section view;

[0023] Figure 6 yes Figure 5 Enlarged view of a section at point D;

[0024] Figure 7 yes Figure 4 BB section view;

[0025] Figure 8 yes Figure 7 Enlarged view of a section at point E in the middle;

[0026] Figure 9 yes Figure 7 Enlarged view of a section at point F in the middle;

[0027] Figure 10 yes Figure 4 CC section view;

[0028] Figure 11 yes Figure 10 Enlarged view of a section at point G in the middle;

[0029] Figure 12 This is a top view of the electrical control box according to an embodiment of this application;

[0030] Figure 13 This is a side view of the electrical control box according to an embodiment of this application;

[0031] Figure 14 This is a wiring diagram of the housing and circuit board bracket according to an embodiment of this application;

[0032] Figure 15 This is a schematic diagram of the box body and the back cover fitting together according to an embodiment of this application;

[0033] Figure 16 yes Figure 15 Enlarged view of a section at point H;

[0034] Figure 17 This is a schematic diagram of a box according to an embodiment of this application. Figure 1 ;

[0035] Figure 18 This is a schematic diagram of a box according to an embodiment of this application. Figure 2;

[0036] Figure 19 This is a front view of the box according to an embodiment of this application;

[0037] Figure 20 yes Figure 19 Sectional view II;

[0038] Figure 21 yes Figure 20 Enlarged view of a section at point J;

[0039] Figure 22 This is a schematic diagram of the back cover according to an embodiment of this application. Figure 1 ;

[0040] Figure 23 yes Figure 22 Enlarged view of a section at point K;

[0041] Figure 24 This is a schematic diagram of the back cover according to an embodiment of this application. Figure 2 .

[0042] Figure label:

[0043] 1000. Air conditioner;

[0044] 100. Electrical control box; 200. Panel assembly; 300. Air duct assembly; 400. Fresh air assembly; 500. Rear box assembly; 600. Top cover; 700. Chassis;

[0045] 1. Circuit board bracket; 11. Circuit board;

[0046] 2. Box body; 20a. Accommodation space;

[0047] 21. Back panel of the housing; 211. Recessed platform; 211a. Grounding mounting position; 212. Mounting boss; 212a. Guide section;

[0048] 22. Box side panels;

[0049] 23. Top plate of the box; 231. Protective ribs;

[0050] 24. Box bottom plate;

[0051] 3. Back cover; 3a. Receiving cavity;

[0052] 31. Rear cover panel;

[0053] 32. Rear cover side panel; 321. Connecting flange; 322. Mounting spring; 322a. Protrusion;

[0054] 33. Rear cover bottom plate;

[0055] 34. Rear cover top plate;

[0056] 4. Front cover;

[0057] 5. Install the frame;

[0058] 6. Wiring harness; 61. Live wire; 62. Neutral wire; 63. Signal wire; 64. Ground wire. Detailed Implementation

[0059] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0060] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0061] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0063] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0064] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0065] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0066] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0067] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0068] In this application, "multiple" means two or more (including two).

[0069] The following is for reference. Figures 1-24 The present application describes an electrical control box 100 and an air conditioner 1000 according to embodiments thereof.

[0070] like Figures 3-6 As shown, according to the first aspect embodiment of the present application, the electrical control box 100 includes: a circuit board bracket 1 and a box body 2.

[0071] The circuit board support 1 is provided with a circuit board 11; the box 2 has an accommodating space 20a, the circuit board support 1 is disposed in the accommodating space 20a, the box back plate 21 of the box 2 is provided with a recessed platform 211, the recessed platform 211 is disposed opposite to the circuit board 11, and the distance between the recessed platform 211 and the circuit board 11 is greater than the distance between the box back plate 21 and the recessed platform 211, and the recessed platform 211 is provided with a grounding mounting position 211a for installing a grounding screw.

[0072] Specifically, the box 2 can have an accommodating space 20a, which can be used to accommodate components such as the circuit board bracket 1, and play a role in fixing, supporting and protecting the circuit board bracket 1 and other components. The circuit board bracket 1 is provided with a circuit board 11. The box 2 has a box back plate 21, which is arranged opposite to the circuit board 11. At the same time, a recessed platform 211 is provided on the box back plate 21, which is arranged opposite to the circuit board 11. The distance between the recessed platform 211 and the circuit board 11 is greater than the distance between the box back plate 21 and the recessed platform 211. The recessed platform 211 is formed on the box back plate 21 as a protrusion structure protruding away from the circuit board 11. A grounding mounting position 211a can be provided at the end of the recessed platform 211 away from the circuit board 11. The grounding mounting position 211a can be constructed as a grounding screw hole, etc. The grounding mounting position 211a is used for the installation and fixing of grounding screws so as to connect the power line or other electrical components of the electrical control box 100 to the ground (or grounding system) to ensure electrical safety. The grounding screw is located at the grounding mounting position 211a at the end of the recess 211 away from the circuit board 11. Thus, the recess 211 can provide space for the installation and fixing of the grounding screw, while also increasing the safe distance between the grounding screw and the circuit board 11.

[0073] According to the electrical control box 100 of this application, the countersunk plate 211 on the back panel 21 of the box increases the safe distance between the grounding screw and the circuit board 11, protecting the circuit board 11 inside the box from contact with the grounding screw. This prevents the grounding screw from puncturing the circuit board 11 during installation and causing a short circuit, effectively improving the stability and safety of the circuit board 11 within the box, thereby enhancing the safety and reliability of the electrical control box 100. Simultaneously, the grounding mounting position 211a on the countersunk plate 211 also helps improve the ease of installation and stability of the grounding screw, thus improving grounding efficiency and reliability.

[0074] like Figure 6 As shown, according to some embodiments of this application, the distance between the recessed platform 211 and the back plate 21 of the box is constructed as d1, and satisfies: 8mm≤d1≤25mm.

[0075] Specifically, the distance between the recessed platform 211 and the back panel 21 of the housing can be understood as the distance between the end of the recessed platform 211 facing away from the circuit board 11 and the back panel 21 of the housing. If the distance between the recessed platform 211 and the back panel 21 of the housing is too small, for example, if the distance d1 is 3mm, 5mm, or 7mm, it will reduce the safety clearance between the recessed platform 211 and the circuit board 11. This makes it easy for long screws to penetrate the circuit board 11 due to improper operation or incorrect screw length during installation, causing a short circuit or damage, which in turn affects the normal operation of the control box 100 and even the entire air conditioner 1000. If the distance between the recessed platform 211 and the back panel 21 of the housing is too large, for example, if the distance d1 is 30mm, 35mm, or 40mm, the recessed platform 211 occupies too much space, increasing the overall volume of the control box 100 and potentially causing other surrounding components to be damaged. The layout of components is restricted, affecting the compactness and space utilization of the entire system. Furthermore, an excessively large recessed platform 211 requires more material, thus increasing the manufacturing cost of the electrical control box 100. In this embodiment, the distance between the recessed platform 211 and the back plate 21 of the box is set in the range of 8mm to 25mm. For example, the distance d1 between the recessed platform 211 and the back plate 21 of the box is constructed to be 8mm, 15mm, 20mm, or 25mm, etc. This makes the distance between the recessed platform 211 and the back plate 21 of the box appropriate. It can ensure that there is sufficient safety clearance between the recessed platform 211 and the circuit board 11, while taking into account the rationality of space utilization and production cost control, so as to achieve a good balance between optimizing the safety and spatial layout of the electrical control box 100.

[0076] like Figure 6 As shown, according to some embodiments of this application, the distance between the circuit board 11 and the recessed platform 211 is configured as d2, and satisfies: 18mm≤d2≤30mm.

[0077] Specifically, the distance between the circuit board 11 and the recessed platform 211 can be understood as the distance between the side of the circuit board 11 closest to the back plate 21 of the housing and the end of the recessed platform 211 away from the circuit board 11. When the distance between the circuit board 11 and the recessed platform 211 is too small, for example, the distance d2 between the circuit board 11 and the recessed platform 211 is configured to be 5mm, 10mm, or 15mm, it will reduce the safety clearance between the recessed platform 211 and the circuit board 11. This makes it easy for long screws to accidentally pierce the circuit board 11 during installation, leading to a short circuit or damage, which in turn affects the normal operation of the control box 100. Furthermore, if the distance between the circuit board 11 and the recessed platform 211 is too small, it will also limit the layout and arrangement of the internal components of the control box 100, reducing the design flexibility of the control box 100. At the same time, it will also limit the heat dissipation of the internal components of the control box 100, affecting its service life and performance. When the distance between the circuit board 11 and the recessed platform 211 is too large, for example, the distance d2 between the circuit board 11 and the recessed platform 211 is too large, for example, the distance d2 between the circuit board 11 and the recessed platform 211 is too large, it will reduce the safety clearance between the circuit board 11 and the recessed platform 211. This will make it easy for long screws to accidentally pierce the circuit board 11 during installation, leading to a short circuit or damage, which will affect the normal operation of the control box 100. Setting the distance d2 between the platforms 211 to 35mm, 40mm, or 45mm would increase the overall volume of the electrical control box 100, leading to increased material costs and reduced space utilization. In this embodiment, the distance between the circuit board 11 and the platform 211 is set within the range of 18mm to 30mm. For example, the distance d2 between the circuit board 11 and the platform 211 could be 18mm, 22mm, 26mm, or 30mm. This appropriate distance ensures sufficient safety clearance between the platform 211 and the circuit board 11 while balancing space utilization and production cost control, achieving a good balance between optimizing the safety and spatial layout of the electrical control box 100. Furthermore, setting the distance between the circuit board 11 and the platform 211 within a suitable range also provides sufficient space for the circuit board 11 and other components during installation, improving installation convenience and assembly efficiency.

[0078] like Figure 17 and 18 As shown, according to some embodiments of this application, the box body 2 includes: a back panel 21, a side panel 22, a top panel 23, and a bottom panel 24.

[0079] The box body side panel 22, box body top panel 23 and box body bottom panel 24 are arranged around the box body back panel 21, and the box body top panel 23 is provided with protective ribs 231.

[0080] Specifically, the box side panels 22 can be constructed as two, and are respectively disposed on both sides of the box back panel 21 in the width direction. The box top panel 23 and box bottom panel 24 can each be constructed as one, and are respectively disposed at the top and bottom ends of the box back panel 21. The box side panels 22, box top panel 23, box bottom panel 24, and box back panel 21 together define the accommodating space 20a for accommodating and protecting electrical components such as the circuit board 11. Among them, the box top panel 23 is provided with a protective rib 231. The protective rib 231 can be located on the side of the box top panel 23 away from the box bottom panel 24 and protrude from the surface of the box top panel 23. The protective rib 231 can extend along the edge of the box top panel 23. The protective rib 231 can block and partition the box top panel 23 to play a good protective role. For example, the protective rib 231 can block water droplets that may drip from the top of the electrical control box 100 onto the top plate 23 of the box body, preventing water droplets from flowing from the top plate 23 into other areas of the electrical control box 100. This protects the components in other areas of the electrical control box 100 from moisture erosion and damage, which helps ensure the normal operation of the electrical control box 100 and extend its service life. When a fire occurs on the side of the box body 2 away from the accommodating space 20a, the protective rib 231 can also block and prevent flames that may burst out from the side of the box body 2 away from the accommodating space 20a, thereby preventing the flames from spreading further into the box body 2 or other safe areas of the electrical control box 100 and intensifying the combustion, which can effectively improve the safety performance of the electrical control box 100. In addition, the protective rib 231 can also enhance the structural strength of the top plate 23 of the box body, which helps to improve the overall durability of the box body 2.

[0081] like Figure 3 , Figure 12 as well as Figure 13 As shown, according to some embodiments of this application, the electrical control box 100 further includes: a rear cover 3, which is disposed on the side of the box back plate 21 away from the circuit board support 1 and adjacent to the protective rib 231, and the overlapping area of ​​the rear cover 3 and the box top plate 23.

[0082] Specifically, the rear cover 3 is disposed on the side of the back plate 21 of the housing away from the circuit board support 1 in the thickness direction, and at least a portion of the rear cover 3 is spaced apart from the back plate 21 of the housing, defining an accommodating cavity 3a. The rear cover 3 can protect the electrical components and wiring harnesses 6 (such as live wire 61, neutral wire 62, signal wire 63, ground wire 64, etc.) within the accommodating cavity 3a. At least a portion of the rear cover 3 overlaps with one side of the top plate 23 of the housing. For example, at least a portion of the top of the rear cover 3 can overlap one side of the top plate 23 of the housing and be located above the top plate 23 of the housing to ensure good and stable assembly between at least a portion of the rear cover 3 and the housing 2.

[0083] It should be noted that in the relevant technology, when a fire occurs inside the rear cover 3 of the control box 100, the flames can easily escape from the area between the rear cover 3 and the top of the control box 100, which can aggravate the overall combustion of the control box 100 and seriously endanger the safety of the control box 100 and the air conditioner 1000. In addition, there is also the problem that water droplets on the top of the control box 100 can easily flow into the interior of the rear cover 3, causing damage to the internal components of the rear cover 3. In this embodiment, the overlapping area between the rear cover 3 and the top plate 23 of the box is adjacent to the protective rib 231. The protective rib 231 can be configured to extend along the length edge of the top plate 23 of the box near the rear cover 3. The side of the protective rib 231 in the width direction is the overlapping area between the rear cover 3 and the top plate 23 of the box. In some embodiments, when a fire occurs inside the rear cover 3 or on the side of the rear cover 3 away from the back plate 21 of the box, and spreads along the top of the rear cover 3, the protective rib 231 can act as a barrier. The protective rib 231 protrudes from the top plate 23 of the box and can prevent any flames that may be generated by the rear cover 3 from escaping from the top and spreading to the protective rib 231 in the width direction. On the other side of the width direction (i.e., the area where the top plate 23 of the box is away from the rear cover 3), the overall safety of the electrical control box 100 can be improved. In other embodiments, when water droplets fall from the top of the electrical control box 100 onto the top plate 23 of the box, the protective rib 231 can block the water droplets on the top plate 23 of the box on the other side of the width direction of the protective rib 231 (the area where the top plate 23 of the box is away from the rear cover 3), which can prevent water droplets from flowing from the top plate 23 of the box into the rear cover 3 located on the side of the width direction of the protective rib 231, thereby effectively protecting the internal components of the rear cover 3 from water erosion and damage, so as to improve the working reliability and service life of the internal components of the rear cover 3.

[0084] like Figure 3 , Figure 22 as well as Figure 24 As shown, according to some embodiments of this application, the rear cover 3 includes: a rear cover back plate 31, a rear cover side plate 32, a rear cover bottom plate 33, and a rear cover top plate 34. The rear cover side plate 32, the rear cover bottom plate 33, and the rear cover top plate 34 surround the rear cover back plate 31, and the protective rib 231 is disposed adjacent to the rear cover top plate 34.

[0085] Specifically, the rear cover back panel 31 is disposed opposite to the box body back panel 21. Two rear cover side panels 32 can be constructed and respectively disposed on both sides of the rear cover back panel 31 in the width direction. The rear cover top panel 34 and rear cover bottom panel 33 can each be constructed as one and respectively disposed at the top and bottom ends of the rear cover back panel 31. The rear cover back panel 31, rear cover side panels 32, rear cover bottom panel 33, and rear cover top panel 34 together define a receiving cavity 3a for accommodating and protecting electrical components and wiring harnesses 6, etc. The rear cover top panel 34 can overlap with the box body top panel 23; for example, the rear cover top panel 34 can overlap the side of the box body top panel 23 opposite to the box body bottom panel 24. The protective rib 231 is located near the top plate 34 of the rear cover, which can prevent any flames that may be generated inside the rear cover 3 from escaping from the top plate 34 of the rear cover and spreading to the area of ​​the top plate 23 of the box body away from the rear cover 3, so as to ensure the overall safety of the electrical control box 100. At the same time, the protective rib 231 can prevent water droplets from flowing from the top plate 23 of the box body into the space between the top plate 23 of the box body and the top plate of the top cover 600, thereby effectively protecting the internal components of the rear cover 3 from moisture corrosion and damage.

[0086] like Figure 22 and Figure 24 As shown, according to some embodiments of this application, a connecting flange 321 is provided on the rear cover side panel 32, and the connecting flange 321 is connected to the box back panel 21.

[0087] Specifically, the connecting flange 321 can be provided at the end of the rear cover side plate 32 away from the rear cover back plate 31. Connecting flanges 321 can be provided on both rear cover side plates 32 located on either side of the rear cover back plate 31 in the width direction. The connecting flanges 321 on the two rear cover side plates 32 extend in a direction away from each other. The connecting flanges 321 can be connected to the box back plate 21 to achieve a connection and fixation between the rear cover 3 and the box 2. The connecting flange 321 has a first surface on the side in the thickness direction away from the rear cover back plate 31. The first surface is suitable for abutting against at least a portion of the surface of the box back plate 21. The contact between the first surface of the connecting flange 321 and the box back plate 21 increases the connection area between the rear cover 3 and the box 2, which can enhance the connection strength between the rear cover 3 and the box 2, and improve the overall stability and reliability of the electrical control box 100.

[0088] like Figure 15 , Figure 16 as well as Figure 23 As shown, according to some embodiments of this application, a mounting spring 322 is provided on the connecting flange 321, and a mounting boss 212 is provided on the back plate 21 of the box. The mounting boss 212 protrudes toward the rear cover side plate 32 and has an open end at one height. The mounting spring 322 is adapted to extend into the mounting boss 212 along the open end.

[0089] Specifically, the back panel 21 of the box body may have a mounting boss 212 on the side near the rear cover 3 in the thickness direction. The mounting boss 212 protrudes towards the rear cover side panel 32, and a receiving space is formed inside the mounting boss 212. The mounting boss 212 has an open end in the height direction and a closed end. The mounting spring 322 on the connecting flange 321 is adapted to extend into the receiving space of the mounting boss 212 through the open end, so as to fix the rear cover 3 to the box body 2. The method of using the mounting spring 322 and the mounting boss 212 to cooperate makes the connection between the rear cover 3 and the box body 2 more secure and easier to install and disassemble, thereby facilitating the quick assembly, maintenance and upkeep of the electrical control box 100.

[0090] It should be noted that in related technologies, the rear cover 3 of the control box 100 is usually provided with a bent spring. The bent spring is a structure that extends beyond the plane of the rear cover 3 of the control box 100 to cooperate with the corresponding structure on the main body of the control box 100. However, when the rear cover 3 of the control box 100 needs to be stacked for storage or transportation, it is easily squeezed and deformed, which affects the connection stability between the rear cover 3 of the control box 100 and the main body of the control box 100, and leads to a decrease in sealing performance, which in turn affects the normal operation of the electrical components inside the control box 100. In this embodiment, the mounting spring 322 extends into the mounting boss 212 along one end of its height. The mounting spring 322 can be constructed as a straight spring structure extending along the height direction. The plane where the mounting spring 322 extends is parallel to the connecting flange 321 and the back cover plate 31. When multiple back covers 3 are stacked, there will be no angular interference between the mounting springs 322 of adjacent back covers 3 and between the mounting springs 322 and the connecting flange 321. This can prevent deformation and damage of the mounting spring 322, ensure the reliability of the mounting spring 322, guarantee the structural stability of the electrical control box 100, and save maintenance costs.

[0091] Furthermore, in some specific embodiments of this application, such as Figure 23 As shown, the mounting spring 322 has a protrusion 322a extending in the height direction on the side facing away from the back plate 21 of the housing. The protrusion 322a reduces the contact area between the surface of the mounting spring 322 facing away from the back plate 21 and the mounting boss 212, thereby reducing the friction and resistance during the insertion and removal of the mounting spring 322 from the mounting boss 212. This allows the mounting spring 322 to enter or leave the mounting boss 212 more smoothly, improving assembly and disassembly efficiency. At the same time, the protrusion 322a on the mounting spring 322 also helps reduce wear between the mounting spring 322 and the mounting boss 212, thus improving the durability of the back cover 3 and the housing 2.

[0092] like Figure 9As shown, according to some embodiments of this application, the mounting boss 212 has a guide portion 212a formed at one end with an open opening.

[0093] Specifically, the end of the mounting boss 212 with an open opening can have a guide portion 212a. The guide portion 212a can be configured to gradually slope away from the back plate 21 of the box body in the thickness direction, and the cross-sectional area of ​​the mounting boss 212 near the open opening gradually increases. In this way, the mounting spring 322 can be inserted into the mounting boss 212 more easily and smoothly through the guide portion 212a, which helps to improve the convenience and efficiency of assembling the back cover 3 and the box body 2. At the same time, the guide portion 212a has a good guiding function, guiding the mounting spring 322 into the mounting boss 212 along the correct path, which can improve the assembly accuracy.

[0094] Furthermore, in some specific embodiments of this application, such as Figure 3 , Figure 12 as well as Figure 13 As shown, the electrical control box 100 also includes a front cover 4 and a mounting frame 5. The front cover 4 is located on the side of the circuit board bracket 1 away from the box body 2 and encloses the accommodating space 20a of the box body 2. The front cover 4 can protect and install the internal components of the electrical control box 100. The mounting frame 5 is connected to the box body 2, and at least a part of the mounting frame 5 covers the top of the box body 2 to provide good protection for the box body 2.

[0095] like Figure 1 and Figure 2 As shown, according to the second aspect embodiment of the present application, the air conditioner 1000 includes: the electrical control box 100 as described in any of the above embodiments.

[0096] In addition, in some specific embodiments of this utility model, the air conditioner 1000 also includes a panel assembly 200, an air duct assembly 300, a fresh air assembly 400, a rear box assembly 500, a top cover 600, and a chassis 700. The panel assembly 200 is connected to and positioned opposite the rear box assembly 500, defining a receiving cavity between them. The panel assembly 200 and the rear box assembly 500 serve to decorate, beautify, and protect the internal components of the air conditioner 1000. The duct assembly 300, the fresh air assembly 400, and the electrical control box 100 are all housed within the receiving cavity. The duct assembly 300 is used to realize the air intake and exhaust functions of the air conditioner 1000, and the fresh air assembly 400 is used to realize the fresh air function of the air conditioner 1000. The top cover 600 and the chassis 700 are respectively located at the top and bottom of the panel assembly 200 and the rear box assembly 500, and enclose the receiving cavity. The top cover 600 and the chassis 700 provide support, fixation, and protection for the internal components of the air conditioner 1000, and enhance the external aesthetics of the air conditioner 1000.

[0097] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0098] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electrical control box, characterized in that, include: A circuit board bracket, on which a circuit board is mounted; The box has an accommodating space, and the circuit board support is disposed in the accommodating space. A recessed platform is provided on the back plate of the box, and the recessed platform is disposed opposite to the circuit board. The distance between the recessed platform and the circuit board is greater than the distance between the back plate of the box and the recessed platform. A grounding mounting position for installing a grounding screw is provided on the recessed platform.

2. The electrical control box according to claim 1, characterized in that, The distance between the recessed platform and the back plate of the box is d1, and satisfies: 8mm≤d1≤25mm.

3. The electrical control box according to claim 1 or 2, characterized in that, The distance between the circuit board and the settling platform is d2, and satisfies: 18mm≤d2≤30mm.

4. The electrical control box according to claim 1, characterized in that, The box body includes: a back panel, a side panel, a top panel, and a bottom panel. The side panel, the top panel, and the bottom panel surround the back panel, and the top panel is provided with protective ribs.

5. The electrical control box according to claim 4, characterized in that, The electrical control box further includes: a rear cover, which is disposed on the side of the back plate of the box away from the circuit board support and adjacent to the protective rib, and the overlapping area of ​​the rear cover and the top plate of the box.

6. The electrical control box according to claim 5, characterized in that, The rear cover includes: a rear cover back plate, a rear cover side plate, a rear cover bottom plate, and a rear cover top plate. The rear cover side plate, the rear cover bottom plate, and the rear cover top plate surround the rear cover back plate, and the protective rib is disposed adjacent to the rear cover top plate.

7. The electrical control box according to claim 6, characterized in that, The rear cover side panel is provided with a connecting flange, which is connected to the back panel of the box.

8. The electrical control box according to claim 7, characterized in that, The connecting flange is provided with a mounting spring, and the back plate of the box is provided with a mounting boss. The mounting boss protrudes towards the rear cover side plate and has an open end at one height. The mounting spring is adapted to extend into the mounting boss along the open end.

9. The electrical control box according to claim 8, characterized in that, The mounting boss has a guide portion formed at one of its open ends.

10. An air conditioner, characterized in that, include: The electrical control box according to any one of claims 1-9.

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