Electric control box assembly, air conditioner indoor unit and air conditioner

Abstract

The utility model relates to air conditioning technical field discloses a kind of electric control box assembly, air conditioner indoor unit and air conditioner, electric control box assembly includes box body, electric control, box cover and wire harness terminal, electric control is located in box body, box cover is connected on box body, box cover includes cover body, fixed part is equipped on cover body, fixed part and cover body are integral structure, wire harness terminal is electrically connected with electric control and is fixed on box cover by fixed part.The utility model sets up fixed part and cover body as integral structure on cover body, reduce the number of parts, reduce mould development variety and material use cost, at the same time, the cumbersome step of manual installation wire card one by one is saved, assembly process is reduced, manual assembly cost and work hours are reduced, improve assembly efficiency;Integral structure also improves the overall strength of fixed part and cover body, so that wire harness terminal is fixed more firmly and reliably, effectively prevent loosening or displacement, improve the security and stability of electrical connection.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an electrical control box assembly, an indoor air conditioning unit, and an air conditioner. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] The electrical control box cover of existing air conditioners typically adopts a split design, meaning that an additional independent wire clip component is set on top of the main body of the electrical control box cover to fix the terminals and wiring harnesses. This structure requires separate mold manufacturing for the wire clips, which increases mold development and material costs; at the same time, the assembly process requires manual installation one by one, which is cumbersome and has high labor costs. Utility Model Content

[0004] The purpose of this utility model is to at least solve the problems of high mold, material, and labor costs and complex assembly caused by the separate design of wire clip parts in existing air conditioner control box covers. This purpose is achieved through the following technical solution: The first aspect of this utility model provides an electrical control box assembly, comprising: Box body; An electrical control device is disposed within the housing; A box lid, the box lid being connected to the box body, the box lid including a first lid body, the first lid body having a fixing part, the fixing part being integral with the first lid body; The wire harness terminal is electrically connected to the electrical control and is fixed to the cover by the fixing part.

[0005] The electrical control box assembly of this utility model integrates the fixing part on the first cover with the first cover into a single structure, eliminating the need for separately designed and installed wire clip parts in traditional solutions. This effectively reduces the number of parts, the variety of mold development, and material usage costs. At the same time, it eliminates the tedious step of manually installing wire clips one by one, reducing assembly processes, lowering labor assembly costs and time, and improving assembly efficiency. In addition, the integrated structure also improves the overall strength of the fixing part and the first cover, making the wire harness terminals more firmly and reliably fixed, effectively preventing loosening or displacement, and improving the safety and stability of the electrical connection.

[0006] In addition, the electrical control box assembly according to this utility model may also have the following additional technical features: In some embodiments of this utility model, the first cover has a first top wall, the fixing part includes at least one buckle, the buckle is disposed on the first top wall, and the wire harness terminal is fixed to the first top wall by the buckle.

[0007] In some embodiments of this utility model, the fastener includes at least two elastic arms arranged at intervals on the first top wall, a holding space is defined between the two elastic arms, and a first limiting part is provided at one end of each elastic arm away from the first top wall. The wire harness terminal is installed in the holding space and is limited by the first limiting part.

[0008] In some embodiments of this utility model, the box cover further includes a second cover body, which is detachably connected to the first cover body. A first clearance opening is provided on the second cover body at a position corresponding to the fixing part, and the fixing part passes through the first clearance opening.

[0009] In some embodiments of this utility model, the first cover includes a first side peripheral wall, and a second limiting part is provided on the first side peripheral wall. The second cover includes a second side peripheral wall, and a mating part adapted to the second limiting part is provided on the second side peripheral wall. The mating part and the second limiting part cooperate with each other.

[0010] In some embodiments of this utility model, one of the second limiting part and the mating part is a first limiting protrusion, and the other is a limiting groove or limiting hole that mates with the first limiting protrusion.

[0011] In some embodiments of this utility model, the first cover is provided with a baffle rib, which is arranged circumferentially along the inner sidewall of the first clearance opening, and the height of the baffle rib is higher than the periphery of the first clearance opening.

[0012] In some embodiments of this utility model, the second cover has a second top wall, and an assembly groove is provided on the second top wall at a position corresponding to the fixing part. The assembly groove is recessed toward the first cover, and at least a portion of the wire harness terminal is accommodated in the assembly groove along the recessed direction of the assembly groove toward the first cover.

[0013] In some embodiments of this utility model, the assembly groove has an opening on one side, and a second limiting protrusion is provided on the side of the assembly groove near the opening. The second limiting protrusion, the groove wall of the assembly groove, and the fixing part define a limiting space for limiting the wire harness terminal.

[0014] In some embodiments of this utility model, the first cover is provided with a wire-clamping part, which is located on the side of the assembly groove with the opening, and the wire-clamping part is used to fix the wire harness.

[0015] In some embodiments of this utility model, the electrical control device is provided with a high-voltage area and a low-voltage area arranged at intervals, and the fixing part is provided corresponding to the low-voltage area.

[0016] A second aspect of this utility model provides an indoor air conditioning unit, including a housing and an electrical control box assembly as described in any of the preceding claims, wherein the electrical control box assembly is disposed within the housing.

[0017] A third aspect of this utility model provides an air conditioner, including an electrical control box assembly as described in any of the preceding claims, or including an indoor air conditioner unit as described above. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the structure of the electrical control box assembly according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the structure of the cover of the electronic control box assembly according to an embodiment of the present invention is shown from a first perspective. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 A schematic diagram of the structure of the first cover of the electronic control box assembly according to an embodiment of the present invention is shown. Figure 5 A schematic diagram of the structure of the second cover of the electronic control box assembly according to an embodiment of the present invention is shown from a first perspective. Figure 6 A schematic diagram of the structure of the second cover of the electronic control box assembly according to an embodiment of the present invention is shown from a second perspective. Figure 7 A schematic diagram of the cover of the electronic control box assembly according to an embodiment of the present invention is shown from a second perspective. Figure 8 for Figure 7 Cross-sectional view at point BB; Figure 9 A schematic diagram of the assembly structure of the electrical control box assembly according to an embodiment of the present invention is shown. Figure 10 for Figure 9 Enlarged view of point C in the middle; Figure 11 A schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention is shown. Figure 1 ; Figure 12A schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention is shown. Figure 2 .

[0019] The attached figures are labeled as follows: 100. Air conditioner indoor unit; 10. Electrical control box assembly; 20. Face frame; 201. Second clearance opening; 30. Panel; 40. Electrical cover plate; 1. Box body; 2. Box lid; 21. First cover body; 211. First side peripheral wall; 212. Retaining rib; 213. Wire clamping part; 22. Fixing part; 221. Elastic arm; 222. First limiting part; 23. Second cover body; 231. First clearance opening; 232. Second side peripheral wall; 233. Assembly groove; 234. Second limiting protrusion; 3. Wire harness terminals; 41. Second limiting part; 411. First limiting protrusion; 42. Mating part; 421. Limiting groove; 422. Limiting hole; 5. Electrical control unit. Detailed Implementation

[0020] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0021] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0022] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0023] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0024] like Figures 1 to 8 As shown, according to an embodiment of this utility model, an electrical control box assembly 10 is proposed, including a box body 1, a box cover 2, a wiring harness terminal 3, and an electrical control component 5. The top of the box body 1 has an opening, and the box cover 2 is connected to the box body 1 and can open or close the opening. The box cover 2 includes a first cover body 21, on which a fixing part 22 is provided. The fixing part 22 and the first cover body 21 are an integral structure, which can be integrally formed with the first cover body 21 through injection molding, compression molding, or other processes. The integrated structure reduces the assembly gap or connection failure risk between the fixing part 22 and the first cover body 21, while reducing the number of parts and assembly steps, and improving the compactness and reliability of the overall structure. In this embodiment, the first cover body 21 is a plastic part, and the fixing part 22 is integrally formed with the first cover body 21 through injection molding. The wiring harness terminal 3 is electrically connected to the electrical control unit 5 and fixed to the cover 2 via the fixing part 22. One end of the wiring harness terminal 3 is electrically connected to the pad or pin on the electrical control unit 5 by soldering, crimping, or plugging, while the other end is connected and fixed to the cover 2 via the fixing part 22. The electrical control unit 5 includes a main control board, which is fixed in a preset position inside the housing 1 by screws, sliding grooves, etc., to ensure that it is relatively stationary with respect to the housing 1 and to avoid poor contact or short circuit caused by vibration or displacement.

[0025] The electrical control box assembly 10 of this utility model integrates the fixing part 22 on the first cover 21 with the first cover 21 into a single structure, eliminating the need for separately designed and installed wire clip parts in traditional solutions. This effectively reduces the number of parts, the variety of mold development, and the cost of materials used. At the same time, it eliminates the tedious step of manually installing wire clips one by one, reducing assembly processes, lowering labor assembly costs and time, and improving assembly efficiency. In addition, the integrated structure also improves the overall strength of the fixing part 22 and the first cover 21, making the wire harness terminal 3 more firmly and reliably fixed, effectively preventing loosening or displacement, and improving the safety and stability of the electrical connection.

[0026] In some embodiments of this utility model, the first cover 21 has a first top wall, and the fixing part 22 includes at least one buckle, which is disposed on the first top wall, and the wire harness terminal 3 is fixed to the first top wall by the buckle.

[0027] like Figures 1 to 4 As shown, at least one latching element is provided on the top plane of the first cover 21, i.e., the upper surface of the cover. The first top wall provides a mounting base for the latching element and a stable contact surface for the wire harness terminal 3. The latching element fixes the wire harness terminal 3 to the first top wall through the clamping force or snapping action generated by elastic deformation, preventing it from loosening or shifting. The number of latching elements can be flexibly configured according to the number and layout of the wire harness terminal 3. By setting the latching element on the first top wall of the first cover 21, the fixing structure of the wire harness terminal 3 is directly exposed to the most accessible top surface of the cover 2. During maintenance, only the cover 2 needs to be opened to quickly locate and remove the target wire harness terminal 3 by visual inspection, without disassembling other components inside the box 1. This simplifies the maintenance operation steps, shortens the maintenance time, and reduces the risk of accidental contact with precision components such as the electrical control 5, thereby improving the maintainability and maintenance efficiency of the electrical control box assembly 10.

[0028] In some embodiments of this utility model, the fastener includes at least two elastic arms 221 arranged at intervals on a first top wall, with a holding space defined between the two elastic arms 221, and a first limiting part 222 respectively provided on one end of the two elastic arms 221 away from the first top wall, and the wire harness terminal 3 is installed in the holding space and limited by the first limiting part 222.

[0029] like Figure 3As shown, each latching component includes two parallel elastic arms 221 spaced apart. The elastic arms 221 extend vertically upward from the surface of the first top wall. The vertical gap between the two elastic arms 221 forms a latching space, which is the receiving area for the wire harness terminal 3. The width of the space is adapted to the external dimensions (such as width or thickness) of the wire harness terminal 3, or it can be slightly smaller than the terminal size to achieve an interference fit. The ends of the two elastic arms 221 facing away from the first top wall are respectively provided with a first limiting part 222. The first limiting part 222 and the elastic arm 221 are integral structures. The first limiting part 222 is a limiting structure that protrudes towards the inside of the latching space, such as a hook-shaped protrusion or an arc-shaped protrusion that is angled inward, used to prevent the wire harness terminal 3 from coming out of the latching space upward.

[0030] During installation, the operator aligns the wire harness terminal 3 horizontally with the entrance to the clamping space between the two elastic arms 221, and gently presses the wire harness terminal 3 vertically to make it contact the elastic arms 221 and push them apart to both sides. After being subjected to force, the elastic arms 221 deform elastically outward. As the terminal continues to move down into the clamping space, the elastic arms 221 gradually return to their original shape due to the elasticity of their own material. The inner side of the elastic arms 221 adheres to the outer wall of the terminal to provide lateral clamping force, and the blocking effect of the first limiting part 222 restricts the terminal from coming off upward, so that the wire harness terminal 3 is securely limited in the clamping space.

[0031] In some embodiments of the present invention, the box cover 2 further includes a second cover body 23, which is detachably connected to the first cover body 21. A first clearance opening 231 is provided on the second cover body 23 at a position corresponding to the fixing part 22, and the fixing part 22 passes through the first clearance opening 231.

[0032] like Figures 1 to 6 As shown, the second cover 23 covers the first cover 21 and is detachably connected to the first cover 21. The second cover 23 is made of sheet metal, such as galvanized steel plate or cold-rolled steel. After the second cover 23 covers the outside of the first cover 21, it enhances the overall impact resistance of the cover 2, preventing the cover 2 from deforming or being damaged and exposing the internal electrical components 5. At the same time, it can effectively prevent the flame from spreading to the outside of the electrical control box when a fire is caused by a short circuit inside, thus improving the overall safety of the electrical control box assembly 10. The second cover 23 has a first clearance opening 231 that is precisely spatially corresponding to the fixing part 22. The elastic arm 221 of the fastener and the first limiting part 222 pass through the first clearance opening 231. The first clearance opening 231 ensures that the fixing function of the fixing part 22 on the wire harness terminal 3 is not obstructed, and also avoids structural interference between the second cover 23 and the fixing part 22, ensuring the stability and reliability of the wire harness terminal 3 installation.

[0033] In some embodiments of this utility model, the first cover 21 includes a first side peripheral wall 211, on which a second limiting part 41 is provided; the second cover 23 includes a second side peripheral wall 232, on which a mating part 42 adapted to the second limiting part 41 is provided; the mating part 42 and the second limiting part 41 cooperate with each other. By providing the second limiting part 41 on the first side peripheral wall 211 of the first cover 21 and providing the mating part 42 adapted to it on the second side peripheral wall 232 of the second cover 23, the two cooperate with each other, which can accurately guide the relative position of the second cover 23 and the first cover 21 during assembly, so that the fixing part 22 and the first clearance opening 231 are precisely aligned, achieving fast and accurate installation; at the same time, through the limiting effect of the second limiting part 41 and the mating part 42, the relative displacement of the two under the action of external force is effectively limited, enhancing the overall connection stability.

[0034] In some embodiments of this utility model, one of the second limiting part 41 and the mating part 42 is the first limiting protrusion 411, and the other is the limiting groove 421 or the limiting hole 422 that mates with the first limiting protrusion 411.

[0035] like Figures 4 to 6 As shown, in this embodiment, the first side peripheral wall 211 is provided with first limiting protrusions 411 spaced apart, and one side wall of the second side peripheral wall 232 is provided with multiple limiting grooves 421 spaced apart, and the opposite side wall is provided with multiple limiting holes 422 spaced apart. The limiting grooves 421 are groove structures, and the limiting holes 422 are through holes penetrating the second side peripheral wall 232. The multiple first limiting protrusions 411 are provided in a one-to-one correspondence with the limiting grooves 421 and the limiting holes 422. During installation, the first limiting protrusions... Part 411 is precisely inserted into the corresponding limiting groove 421 or limiting hole 422 at a preset position: When the first limiting protrusion 411 engages with the limiting groove 421, lateral limiting is achieved through the interference fit or snap-fit ​​between the first limiting protrusion 411 and the inner wall of the limiting groove 421, preventing horizontal misalignment of the two covers; when the first limiting protrusion 411 engages with the limiting hole 422, the end of the first limiting protrusion 411 can be embedded in the limiting hole 422 to form an axial snap-fit ​​or stop, restricting the relative movement of the two covers in the vertical direction. By setting the first limiting protrusion 411, the limiting groove 421, and the limiting hole 422 to connect the first cover 21 and the second cover 23, the assembly process can be simplified, a firm connection can be achieved without additional tools, and the overall structural stability of the covers and the efficiency of assembly operations can be improved.

[0036] In other embodiments, a plurality of first limiting protrusions 411 may be provided at intervals on the side peripheral wall of the second cover 23, and a plurality of limiting grooves 421 and limiting holes 422 may be provided at intervals on the side peripheral wall of the first cover 21. The specific number, distribution spacing and shape of the limiting structures may be flexibly adjusted according to actual assembly requirements.

[0037] like Figure 7 , 8 As shown, in some embodiments of this utility model, the first cover 21 is provided with a baffle 212, which is arranged circumferentially along the inner sidewall of the first clearance opening 231, and the height of the baffle 212 is higher than the periphery of the first clearance opening 231.

[0038] Because the first clearance opening 231 needs to ensure that the elastic arm 221 and the first limiting part 222 of the fastener can pass through unobstructed, its size is usually larger than the outer contour of the fastener. This results in a large opening gap and a relatively sharp edge at the edge of the first clearance opening 231 after the second cover 23 is installed. When the wire harness terminal 3 is fixed to the fastener of the first cover 21, the wire harness connected to it may pass near the edge of the first clearance opening 231. The sharp edge of the first clearance opening 231 is prone to cutting the outer sheath of the wire harness during assembly, vibration, or daily use, which may lead to short circuit or insulation failure. By setting multiple circumferentially surrounding baffles 212, on the one hand, the gap between the edge of the first clearance opening 231 and the fastener is filled, forming a smooth transition protective surface. On the other hand, its height above the perimeter can effectively prevent the wire harness from directly contacting the sharp edge, thereby avoiding the outer sheath of the wire harness being cut or worn, ensuring the insulation integrity of the wire harness, and improving the safety and reliability of the electrical control box assembly 10 in long-term use.

[0039] In some embodiments of the present invention, the second cover 23 has a second top wall, and an assembly groove 233 is provided on the second top wall at a position corresponding to the fixing part 22. The assembly groove 233 is recessed toward the first cover 21. Along the recessed direction of the assembly groove 233 toward the first cover 21, at least a portion of the wire harness terminal 3 is accommodated in the assembly groove 233.

[0040] like Figure 9 , 10 As shown, the top plane of the second cover 23 has an assembly groove 233 recessed towards the first cover 21. The recessed direction of the assembly groove 233 is perpendicular to the plane of the second top wall. The groove wall of the assembly groove 233 is inclined upward from the bottom of the groove towards the second top wall. When the second cover 23 and the first cover 21 are assembled, at least a part of the wire harness terminal 3 fixed by the fixing part 22 on the first cover 21, that is, the wire harness terminal 3 is completely embedded in the recessed space of the assembly groove 233, or only a part of the structure of the wire harness terminal 3 is embedded in the recessed space of the assembly groove 233.

[0041] Since the fasteners need to have a certain height, if the second cover 23 is a completely flat metal sheet, the top of the higher fasteners may extend too far beyond the upper surface of the second cover 23, thus interfering with the electrical cover 40 covering the electrical control box assembly 10. This could prevent the electrical cover 40 from closing properly, or cause deformation and damage to the fasteners and wiring harness terminals 3 due to long-term compression. Therefore, by providing a downwardly recessed mounting groove 233 on the top plane of the second cover 23, at least part of the fasteners and wiring harness terminals 3 are accommodated in the internal space of the second top wall, effectively reducing the overall height of the fasteners and wiring harness terminals 3. This keeps the upper surface of the second cover 23 flat or only slightly convex, thereby avoiding mechanical collision or compression with the electrical cover 40 above. At the same time, it does not increase the overall thickness or volume of the electrical control box assembly 10, allowing for compact installation of the electrical control box assembly 10 in the whole machine and improving space utilization.

[0042] In some embodiments of this utility model, the assembly groove 233 has an opening on one side, and a second limiting protrusion 234 protrudes from the side of the assembly groove 233 near the opening. A limiting space for limiting the wire harness terminal 3 is defined between the second limiting protrusion 234, the groove wall of the assembly groove 233, and the fixing part 22.

[0043] like Figure 10 As shown, the opening end of the assembly groove 233 is provided with a second limiting protrusion 234 that is opposite to the holding space. The second limiting protrusion 234, together with the groove wall of the assembly groove 233 and the fixing part 22, forms a limiting space for limiting the inserted wire harness terminal 3 in the front-back direction. The second limiting protrusion 234 is close to the opening end, which can effectively prevent the wire harness terminal 3 from moving forward and becoming loose. The rear is blocked by the step of the groove wall of the assembly groove 233 itself to prevent the terminal from coming out backward. The double limiting structure ensures that the wire harness terminal 3 is firmly locked in the limiting space, which not only avoids the problem that the electrical cover 40 cannot close properly due to the terminal loosening or falling out, but also prevents safety hazards such as wire clamping, wear or even short circuit caused by terminal displacement, thereby improving the reliability, stability and overall assembly quality of the wire harness terminal 3 connection.

[0044] In some embodiments of this utility model, the first cover 21 is provided with a wire-clamping part 213, which is located on the side of the assembly groove 233 with an opening, and is used to fix the wire harness.

[0045] like Figure 10As shown, the wire-holding part 213 includes two opposing and spaced-apart holding arms. The holding arms extend integrally from the surface of the first cover 21 and maintain a certain gap at their free ends away from the first cover 21, thereby forming a holding entrance for wire harness insertion. When the wire harness is pushed in through the holding entrance, the holding arms will open outwards moderately under the action of external force, allowing the wire harness to smoothly enter between the two arms. After the wire harness enters, the holding arms will retract inwards to return to their original position by their own elastic force, thereby clamping the wire harness in the middle, effectively preventing the wire harness from shifting or falling off during use, and improving the stability of the wire harness arrangement and the reliability of the overall assembly.

[0046] In some embodiments of this utility model, the electrical control 5 is provided with a strong current area and a weak current area arranged at intervals, and the fixing part 22 is set corresponding to the weak current area.

[0047] The electrical control box 5 is equipped with alternating high-voltage and low-voltage zones. The high-voltage zone is used for high-voltage, high-current power lines or components, while the low-voltage zone is used for low-voltage, low-current signal lines or components. These zones are spatially isolated to reduce mutual interference and potential safety risks. Since the installation of the latch requires a first clearance opening 231 on the second cover 23, if the latch were located in the high-voltage zone, a short circuit or overheating in the high-voltage components could cause a fire, potentially allowing flames and high-temperature gases to directly erupt through the clearance opening 231, posing a risk of igniting surrounding components and spreading the fire. Therefore, designing the latch in the low-voltage zone, which does not involve high voltage or high current, reduces the likelihood of strong open flames or deflagration even in the event of a localized fault, effectively reducing electrical safety hazards and improving the overall fire safety of the control box.

[0048] The second aspect of this utility model provides an air conditioner indoor unit 100, such as... Figure 11 , 12 As shown, the indoor unit 100 of the air conditioner includes a casing and an electrical control box assembly 10 as described above, with the electrical control box assembly 10 housed within the casing. The casing includes a front frame 20 and a panel 30. The front frame 20 has a mounting cavity with an open end. The electrical control box assembly 10 is installed in the mounting cavity through the open end. An electrical cover 40 is provided at the open end, connected to the front frame 20 and capable of opening or closing the open end. When maintenance of the electrical control box assembly 10 is required, the electrical cover 40 can be opened to expose the internal electrical control box assembly 10 for easy operation. Under normal use, the electrical cover 40 closes the open end, serving to protect the electrical control box assembly 10, conceal the internal structure, and improve the appearance of the unit.

[0049] In some embodiments of this utility model, the edge of the open opening has a second clearance opening 201 that communicates with the mounting cavity. The electrical control 5 is detachably installed in the housing 1 through the open opening and the second clearance opening 201. During maintenance, the maintenance personnel only need to open the housing cover 2 to expose the maintenance path of the electrical control 5 without first removing the entire face frame 20. Then, the electrical control 5 can be directly disassembled and installed through the open opening and the second clearance opening 201, which improves maintenance efficiency and reduces the overall maintenance cost.

[0050] The third aspect of this utility model provides an air conditioner, including the above-mentioned electrical control box assembly 10, or including the above-mentioned indoor air conditioner unit 100, and also including an outdoor air conditioner unit. The outdoor air conditioner unit includes a compressor, a heat exchanger, a four-way valve, an expansion valve, etc. The compressor, the outdoor heat exchanger, the four-way valve, the expansion valve and the indoor heat exchanger are connected by refrigerant pipelines to form a refrigeration / heating system.

[0051] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electrical control box assembly, characterized in that, include: Box body; An electrical control device is disposed within the housing; A box lid, the box lid being connected to the box body, the box lid including a first lid body, the first lid body having a fixing part, the fixing part being integral with the first lid body; The wire harness terminal is electrically connected to the electrical control and is fixed to the cover by the fixing part.

2. The electrical control box assembly according to claim 1, characterized in that, The first cover has a first top wall, and the fixing part includes at least one fastener, which is disposed on the first top wall, and the wire harness terminal is fixed to the first top wall by the fastener.

3. The electrical control box assembly according to claim 2, characterized in that, The fastener includes at least two elastic arms arranged at intervals on the first top wall, with a holding space defined between the two elastic arms. Each of the two elastic arms has a first limiting part at one end away from the first top wall. The wire harness terminal is installed in the holding space and is limited by the first limiting part.

4. The electrical control box assembly according to any one of claims 1 to 3, characterized in that, The box cover also includes a second cover body, which is detachably connected to the first cover body. A first clearance opening is provided on the second cover body at a position corresponding to the fixing part, and the fixing part passes through the first clearance opening.

5. The electrical control box assembly according to claim 4, characterized in that, The first cover includes a first side peripheral wall, on which a second limiting part is provided. The second cover includes a second side peripheral wall, on which a mating part adapted to the second limiting part is provided. The mating part and the second limiting part cooperate with each other.

6. The electrical control box assembly according to claim 5, characterized in that, One of the second limiting part and the mating part is the first limiting protrusion, and the other is a limiting groove or limiting hole that mates with the first limiting protrusion.

7. The electrical control box assembly according to claim 4, characterized in that, The first cover is provided with a baffle rib, which is arranged circumferentially along the inner sidewall of the first clearance opening, and the height of the baffle rib is higher than the periphery of the first clearance opening.

8. The electrical control box assembly according to claim 4, characterized in that, The second cover has a second top wall, and an assembly groove is provided on the second top wall at a position corresponding to the fixing part. The assembly groove is recessed toward the first cover, and at least a portion of the wire harness terminal is accommodated in the assembly groove along the recessed direction of the assembly groove toward the first cover.

9. The electrical control box assembly according to claim 8, characterized in that, The assembly groove has an opening on one side, and a second limiting protrusion is provided on the side of the assembly groove near the opening. The second limiting protrusion, the groove wall of the assembly groove and the fixing part define a limiting space for limiting the wire harness terminal.

10. The electrical control box assembly according to claim 9, characterized in that, The first cover is provided with a wire-clamping part, which is located on the side of the assembly groove with the opening, and is used to fix the wire harness.

11. The electrical control box assembly according to any one of claims 1 to 3, characterized in that, The electrical control unit is divided into high-voltage and low-voltage zones arranged at intervals, and the fixing part is set corresponding to the low-voltage zone.

12. An indoor unit for an air conditioner, characterized in that, It includes a housing and an electronic control box assembly according to any one of claims 1 to 11, the electronic control box assembly being disposed within the housing.

13. An air conditioner, characterized in that, Includes the electrical control box assembly according to any one of claims 1 to 11, or includes the air conditioning indoor unit according to claim 12.

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