Electric control box assembly and air conditioner

Abstract

The utility model provides an electric control box assembly and an air conditioner, and relates to the technical field of household appliances. Comprising a metal box body, a metal box cover and an insulating inner box, the metal box body is provided with a first sliding connection portion, the insulating inner box is provided with a second sliding connection portion, the insulating inner box is slidably arranged on the metal box body through cooperation of the second sliding connection portion and the first sliding connection portion, and the metal box cover is fixedly connected with the insulating inner box. In the sliding direction of the insulating inner box, the metal box body is further provided with a limiting hole, the insulating inner box is correspondingly provided with a limiting buckle, and when the insulating inner box slides to the position where the metal box cover abuts against the metal box body, the limiting hole is matched with the limiting buckle to lock the insulating inner box. According to the electric control box assembly, when the insulation inner box needs to be overhauled, the metal box cover is used for pulling out the insulation inner box, the metal box cover is pushed to enable the insulation inner box to slide into the metal box body after overhauling is finished, and operation is easy and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an electric control box assembly and an air conditioner. Background Art

[0002] An electric control box is a device that integrates electrical components, controllers and connectors. Its main function is to control and protect circuit systems or equipment. It is an important component in household appliances such as air conditioners. The electric control box in the air conditioner is the control center of the air conditioning system. It is mainly responsible for the control, protection and connection of electrical components. It can receive signals from temperature sensors, humidity sensors, pressure sensors, etc., and accurately control various equipment such as compressors, fans, heaters, etc. through control circuits to achieve automatic adjustment and operation of the air conditioning system. At the same time, the electric control box in the air conditioner also has functions such as overload protection, short circuit protection, and leakage protection to ensure that the air conditioning system can stop running in time under abnormal conditions to protect the safety of equipment and users.

[0003] In the related art, the inner shell of the electric control box is generally made of insulating materials such as flame-retardant plastics to ensure safety, while the outer shell needs to be wrapped and shielded with a metal shell to prevent abnormal conditions such as glowing wires or arcing from causing open flames to escape and cause disasters. Usually, the metal shell and the insulating inner shell are only connected by limit buckles and screws, but the connection method is unstable, and when maintenance is required, the metal shell needs to be removed first, and then the insulating inner shell needs to be repaired, which is cumbersome and very inconvenient. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide an electric control box assembly and an air conditioner.

[0005] The technical solution adopted by this application to solve the above technical problems is:

[0006] In the first aspect, the present application provides an electric control box assembly, including a metal box body, a metal box cover and an insulating inner box, wherein a first sliding connection portion is provided on the metal box body, and a second sliding connection portion is provided on the insulating inner box, and the insulating inner box is slidably arranged on the metal box body through the cooperation of the second sliding connection portion and the first sliding connection portion, and the metal box cover is fixedly connected to the insulating inner box, and in the sliding direction of the insulating inner box, the metal box body is also provided with a limiting hole, and the insulating inner box is correspondingly provided with a limiting buckle, and when the insulating inner box slides until the metal box cover abuts against the metal box body, the limiting hole and the limiting buckle cooperate to lock the insulating inner box.

[0007] Optionally, in some embodiments of the present application, the limiting hole is a flange hole; and / or, the insulating inner box also includes an insulating box body, the limiting buckle includes an elastic arm and a convex buckle protruding from the elastic arm, one end of the elastic arm is connected to the insulating box body, and the convex buckle is elastically deformed to buckle into the limiting hole.

[0008] Optionally, in some embodiments of the present application, the metal box body also includes a metal box body, and the first sliding connection part is protruding from the metal box body; the insulating inner box also includes an insulating box body, and the second sliding connection part is protruding from the insulating box body; when the first sliding connection part and the second sliding connection part are slidably connected, there is a gap between the first sliding connection part and the insulating box body.

[0009] Optionally, in some embodiments of the present application, the insulating inner box also includes an insulating box body, the second sliding connection portion is arranged on the insulating box body, and the second sliding connection portion extends along its sliding direction to the outside of the insulating box body to form a guide joint portion, and the guide joint portion is suitable for engaging or disengaging with the first sliding connection portion; and / or, one end portion of the second sliding connection portion forms a guide joint portion, the guide joint portion is suitable for engaging or disengaging with the first sliding connection portion, and a chamfer is provided on the guide joint portion.

[0010] Optionally, in some embodiments of the present application, the first sliding connection part is a first sliding rail, the second sliding connection part is a second sliding rail, and the first sliding rail and the second sliding rail are nested and slidably connected; the second sliding rail includes a first sliding side edge and a second sliding side edge symmetrically arranged, and the first sliding side edge and the second sliding side edge are connected by a first connecting rib.

[0011] Optionally, in some embodiments of the present application, the metal box body is provided with a limiting rib, and the insulating inner box is provided with a limiting groove, and the limiting rib and the limiting groove are slidably connected along the sliding direction of the metal box body and the insulating inner box.

[0012] Optionally, in some embodiments of the present application, the limiting rib is a trapezoidal rib, and the limiting groove is provided with an inverted trapezoidal opening; and / or, the extending direction of the limiting rib is parallel to the sliding direction of the insulating inner box.

[0013] Optionally, in some embodiments of the present application, the insulating inner box can slide upward into the metal box body or slide downward into the metal box body.

[0014] Optionally, in some embodiments of the present application, a terminal mounting seat is provided on the side of the insulating inner box, and the terminal includes a power side and a load side. When the terminal is installed on the terminal mounting seat, the power side and the load side are arranged along the sliding direction of the insulating inner box.

[0015] In a second aspect, an embodiment of the present application further provides an air conditioner, which includes the above-mentioned electric control box assembly.

[0016] In summary, due to the adoption of the above technical solution, this application has at least the following beneficial effects:

[0017] The electric control box assembly provided by the present application fixedly connects the metal box cover with the insulating inner box, utilizes the sliding connection between the insulating inner box and the metal box body, and controls the movement of the metal box cover to enable the insulating inner box to slide into or out of the metal box body. When the insulating inner box needs to be inspected, the metal box cover is used to pull out the insulating inner box. After the inspection is completed, the metal box cover is pushed to slide the insulating inner box into the metal box body. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but are not intended to limit the present application, wherein:

[0019] Figure 1 An exploded view of an electric control box assembly provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the front structure of a metal box provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of an insulating inner box provided in an embodiment of the present application;

[0022] Figure 4 A structural schematic diagram of the electric control box assembly provided in an embodiment of the present application from another perspective;

[0023] Figure 5 for Figure 4 Enlarged view of middle Ⅰ;

[0024] Figure 6 A structural schematic diagram of the electric control box assembly provided in an embodiment of the present application from another perspective;

[0025] Figure 7 for Figure 6 Enlarged view of middle Ⅱ;

[0026] Figure 8 A structural schematic diagram of the insulating inner box provided in an embodiment of the present application from another perspective;

[0027] Fig. 9 A structural schematic diagram of the insulating inner box provided in an embodiment of the present application from another perspective;

[0028] Fig.10 for Fig. 9 Enlarged view of middle III;

[0029] Fig.11 A structural schematic diagram of the electric control box assembly provided in an embodiment of the present application from another perspective;

[0030] Fig.12 for Fig.11 Enlarged view of middle Ⅳ;

[0031] Fig.13 A structural schematic diagram of the electric control box assembly provided in an embodiment of the present application from another perspective;

[0032] Fig.14 A schematic diagram of the structure of an air conditioner provided in an embodiment of the present application;

[0033] Fig.15 for Fig.14 Exploded diagram.

[0034] Description of reference numerals:

[0035] 100-air conditioner;

[0036] 10-electric control box assembly; 11-metal box body; 111-limiting hole; 112-metal box body; 113-first sliding connection part; 114-limiting convex rib; 12-insulating inner box; 121-limiting buckle; 1211-elastic arm; 1212-convex buckle; 122-insulating box body; 123-second sliding connection part; 1231-guide joint; 124-limiting groove; 125-terminal mounting seat; 13-metal box cover; 14-gap;

[0037] 20-housing; 21-air inlet; 22-air outlet; 23-air conditioner body; 24-middle side panel; 25-connection terminal. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0039] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a unique orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0040] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described in this application as exemplary is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles disclosed in the present application.

[0041] To facilitate understanding of the scheme of the present application, the spline curves and arrows used in the drawings are explained here: the components indicated by the spline curves without arrows are solid components, that is, components with solid structures; the components indicated by the spline curves with arrows are virtual components, that is, components without solid structures.

[0042] See also Figures 1 to 8The embodiment of the present application provides an electric control box assembly 10, including a metal box body 11, a metal box cover 13 and an insulating inner box 12. The metal box body 11 is provided with a first sliding connection part 113, and the insulating inner box 12 is provided with a second sliding connection part 123. The insulating inner box 12 is slidably arranged on the metal box body 11 through the cooperation of the second sliding connection part 123 and the first sliding connection part 113. The metal box cover 13 is fixedly connected to the insulating inner box 12. In the sliding direction of the insulating inner box 12, the metal box body 11 is also provided with a limiting hole 111, and the insulating inner box 12 is correspondingly provided with a limiting buckle 121. When the insulating inner box 12 slides until the metal box cover 13 abuts against the metal box body 11, the limiting hole 111 cooperates with the limiting buckle 121 to lock the insulating inner box 12. The pulling direction of the insulating inner box 12 can be determined according to actual needs, for example, it can be pulled in the vertical direction or the horizontal direction, and the embodiment of the present application does not limit this.

[0043] The electric control box assembly 10 provided in the present application fixedly connects the metal box cover 13 with the insulating inner box 12, and utilizes the sliding connection between the insulating inner box 12 and the metal box body 11 to control the movement of the metal box cover 13 to achieve the insulating inner box 12 sliding into or out of the metal box body 11. When the insulating inner box 12 needs to be inspected, the metal box cover 13 is used to pull out the insulating inner box 12. After the inspection is completed, the metal box cover 13 is pushed to slide the insulating inner box 12 into the metal box body 11. The operation is simple and convenient, and there is no need to remove the metal box cover 13 separately.

[0044] It should be noted that the electric control box assembly 10 includes an electric control board, which has a system for protecting and controlling electrical equipment. The electric control board is arranged on a side of the insulating inner box 12 away from the metal box body 11, and is fixedly connected to the insulating inner box 12. When the insulating inner box 12 slides relative to the metal box body 11, the electric control board slides synchronously with the insulating inner box 12.

[0045] The metal box cover 13 and the insulating inner box 12 can be fixedly connected by conventional connection methods in the art, such as bolt connection.

[0046] In some embodiments, the limiting hole 111 is a flanged hole. In other words, the limiting hole 111 is formed by using a stamping die and a stamping process to turn the hole edge or outer edge on the metal box body 11 into a whole edge, which is simple to manufacture and saves raw materials. The flanged hole has good rigidity and enhances its reliability.

[0047] In some embodiments, the insulating inner box 12 further includes an insulating box body 122, and the limiting buckle 121 includes an elastic arm 1211 and a convex buckle 1212 convexly disposed on the elastic arm 1211. One end of the elastic arm 1211 is connected to the insulating box body 122, and the convex buckle 1212 is elastically deformed so as to be buckled into the limiting hole 111. Furthermore, a guiding inclined surface is disposed on one end of the elastic arm 1211 away from the insulating box body 122.

[0048] When the insulating inner box 12 slides from outside the metal box body 11 to inside the metal box body 11, the elastic arm 1211 slides to the position corresponding to the limiting hole 111, and uses its own elastic deformation to make the convex buckle 1212 embedded and fixed in the limiting hole 111. The cooperation between the convex buckle 1212 and the limiting hole 111 can play a limiting and retaining role, preventing the insulating inner box 12 from accidentally sliding out of the metal box body 11; for example, when the insulating inner box 12 slides into the metal box body 11 in the upward direction, the cooperation between the convex buckle 1212 and the limiting hole 111 can prevent the insulating inner box 12 from accidentally sliding out of the metal box body 11 due to its own gravity. Specifically, the elastic arm 1211 has a certain length, so that the initial position of the assembly has sufficient guidance, and the structure of the convex buckle 1212 is used at the matching position, and the disassembly and assembly guidance is sufficient; the limiting buckle 121 is connected to the insulating box body 122, with high strength and not easy to break. The matching structure of the limiting hole 111 and the limiting buckle 121 can adjust the holding force according to the weight of the insulating inner box 12 , thereby enhancing the connection stability between the insulating inner box 12 and the metal box body 11 .

[0049] In some embodiments, a plurality of limiting holes 111 are provided on the metal box body 11, and a plurality of limiting buckles 121 are provided on the insulating inner box 12. The plurality of limiting holes 111 and the plurality of limiting buckles 121 correspond one to one and are symmetrically arranged on both sides of the sliding structure of the insulating inner box 12 and the metal box body 11.

[0050] In some embodiments, the first sliding connection portion 113 is a first slide rail, the second sliding connection portion 123 is a second slide rail, and the first slide rail and the second slide rail are connected in a nested sliding manner. Further, the second slide rail is a slide groove. The slide groove slides relative to the first slide rail, so that the insulating inner box 12 slides into or out of the metal box body 11.

[0051] In some embodiments, the second slide rail includes a first sliding side and a second sliding side that are symmetrically arranged, and the first sliding side and the second sliding side are connected by a first connecting rib. The first connecting rib can increase strength and improve assembly stability.

[0052] In some embodiments, the metal box body 11 further includes a metal box body 112, and the first sliding connection part 113 is convexly provided on the metal box body 112; the insulating inner box 12 further includes an insulating box body 122, and the second sliding connection part 123 is convexly provided on the insulating box body 122. When the first sliding connection part 113 and the second sliding connection part 123 are slidably connected, there is a gap 14 between the first sliding connection part 113 and the insulating box body 122. In other words, there is a gap 14 between the first slide rail and the insulating box body 122. It can be understood that the first slide rail has a metal sharp edge, and the gap 14 is maintained between the first slide rail and the insulating box body 122, which can prevent the metal sharp edge from scratching the insulating box body 122.

[0053] In some embodiments, see Fig. 9 and Fig.10 The insulating inner box 12 further includes an insulating box body 122, a second sliding connection portion 123 is disposed on the insulating box body 122, and the second sliding connection portion 123 extends along its sliding direction to the outside of the insulating box body 122 to form a guide joint portion 1231, and the guide joint portion 1231 is suitable for engaging with or separating from the first sliding connection portion 113. When the insulating inner box 12 and the metal box body 11 are assembled, the guide joint portion 1231 located outside the insulating box body 122 first contacts the first sliding connection portion 113, which can further prevent the first sliding connection portion 113 made of metal from being hung on the insulating box body 122.

[0054] In some embodiments, see Fig.11 One end of the second sliding connection part 123 forms a guide joint part 1231, which is suitable for engaging or separating with the first sliding connection part 113, and a chamfer is provided on the guide joint part 1231. Specifically, the guide joint part 1231 has a first surface and a second surface which are arranged obliquely, and both the first surface and the second surface are inclined inwardly along the direction close to the other end of the second sliding connection part 123. In this way, the second sliding connection part 123 and the first sliding connection part 113 are facilitated to be quickly positioned, and the guide assembly is convenient.

[0055] In some embodiments, see Fig.12 and Fig.13 The metal box body 11 is provided with a limiting rib 114, and the insulating inner box 12 is provided with a limiting groove 124. The limiting rib 114 and the limiting groove 124 are slidably connected along the sliding direction of the metal box body 11 and the insulating inner box 12. It can be understood that when the insulating inner box 12 slides relative to the metal box body 11, the limiting groove 124 slides synchronously relative to the limiting rib 114. The cooperation between the limiting rib 114 and the limiting groove 124 can not only assist the limiting assembly, but also enhance the stability and strength of the connection.

[0056] Specifically, two limiting ribs are protruding from the insulating box body 122, and the limiting ribs and the insulating box body 122 together define a limiting groove 124. The two limiting ribs are connected by a second connecting rib, so that the strength of the limiting groove 124 can be enhanced.

[0057] Furthermore, the limiting convex rib 114 is a trapezoidal convex rib, and the second connecting rib is provided with an inverted trapezoidal opening. The trapezoidal convex rib cooperates with the second connecting rib with the inverted trapezoidal opening.

[0058] In some embodiments, the extending direction of the limiting rib 114 is parallel to the sliding direction of the insulating inner box 12 .

[0059] In some embodiments, the metal box body 11 is provided with two limiting ribs 114, which are symmetrically arranged on both sides of the first sliding connection portion 113, and the insulating inner box 12 is provided with two limiting grooves 124, which are symmetrically arranged on both sides of the second sliding connection portion 123, and the two limiting ribs 114 and the two limiting grooves 124 are matched one by one. The matching structure of the limiting ribs 114 and the limiting grooves 124 is provided on both sides of the sliding connection portion, which can prevent the insulating inner box 12 from tilting to one side during the sliding process.

[0060] It can be understood that in other embodiments, the limiting rib 114 can be provided on the insulating inner box 12 , and the limiting groove 124 can be provided on the metal box body 11 .

[0061] In some embodiments, the insulating inner box 12 can slide upward into the metal box body 11 or slide downward out of the metal box body 11 .

[0062] In some embodiments, see Fig.14 The side of the insulating inner box 12 is provided with a terminal mounting seat 125, and the terminal 25 includes a power side and a load side. When the terminal 25 is installed on the terminal mounting seat 125, the power side and the load side are arranged along the sliding direction of the insulating inner box 12. The terminal mounting seat 125 and the insulating inner box 12 are integrally formed, which can reduce one part and improve production efficiency. The power side and the load side are arranged along the sliding direction of the insulating inner box 12, which can save deep space. When the insulating inner box 12 is pulled out for maintenance, the terminal 25 can be operated and controlled, avoiding that when the power side and the load side are arranged in a direction perpendicular to the sliding direction of the insulating inner box 12, part of the power side and the load side are located in a deeper position, which is difficult to operate.

[0063] Second, see Fig.15 The embodiment of the present application further provides an air conditioner 100 , and the air conditioner 100 includes the above-mentioned electric control box assembly 10 .

[0064] In some embodiments, the air conditioner 100 is a duct type air conditioner. The duct type air conditioner is installed in a closed indoor ceiling. The electric control box assembly 10 provided by the present solution is applied to the duct type air conditioner. The insulating inner box 12 can be slid out or into the metal box body 11 by pushing and pulling the metal box cover 13, which is convenient for maintenance.

[0065] In some embodiments, the air conditioner 100 includes a housing 20, an air inlet 21 is provided on the housing 20, the electric control box assembly 10 is located in the housing 20 and is arranged near the air inlet 21, and the sliding direction of the insulating inner box 12 is the same as the air inlet direction of the air inlet 21. When the insulating inner box 12 slides into the metal box body 11, it is located inside the air inlet 21, and when the insulating inner box 12 slides out of the metal box body 11, it is located outside the air inlet 21. It can be understood that the housing 20 also has an air outlet 22, and the air outlet direction of the air outlet 22 is perpendicular to the air inlet direction of the air inlet 21. This solution uses the air inlet 21 as an inspection port of the electric control box assembly 10, and there is no need to lengthen the grille at the air inlet 21, so that the air inlet 21 and the air outlet 22 can be aligned, thereby improving the aesthetics.

[0066] In some embodiments, the air inlet 21 is directed vertically upward.

[0067] In some embodiments, the air conditioner 100 further includes an air conditioner body 23 and a middle side plate 24 that are fixedly connected, the electric control box assembly 10 is located between the air conditioner body 23 and the middle side plate 24, and the insulating inner box 12 is located between the metal box body 11 and the middle side plate 24. The metal box body 11 is fixedly connected to the air conditioner body 23, and the metal box cover 13 is fixedly connected to the middle side plate 24. It can be understood that a cavity is defined between the metal box body 11 and the middle side plate 24, the insulating inner box 12 is located in the cavity, and the metal box cover 13 is fixedly connected to the insulating inner box 12 to form a drawer-type structure with the cavity.

[0068] Specifically, when installing the electric control box assembly 10, the air conditioner body 23 and the middle side plate 24, first, the insulating inner box 12 and the metal box cover 13 are fixedly connected by bolts, and then the second sliding connection part 123 is aligned with the first sliding connection part 113, and the first sliding connection part 113 is pushed along the metal box body 11. When it is pushed to the position of the limiting hole 111, the limiting buckle 121 is engaged with the limiting hole 111 to support the insulating inner box 12, and then the metal box cover 13 is fixed to the middle side plate 24 by bolts to complete the installation. The installation procedure is simple, and the electric control box assembly 10 is stable and reliable.

[0069] When the electric control box assembly 10 needs to be inspected, first remove the connecting screws between the metal box cover 13 and the middle side plate 24, pull the metal box cover 13 outward, drive the insulating inner box 12 to slide out of the metal box body 11, and carry out inspection. After the inspection is completed, push the metal box cover 13 inward again, drive the insulating inner box 12 to slide into the metal box body 11, and fix the insulating inner box 12 and the metal box cover 13, which is very convenient.

[0070] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0071] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety, except for application history documents that are inconsistent with or conflicting with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or later attached to this application). It should be noted that if the descriptions, definitions, and / or use of terms in the attached materials of this application are inconsistent or conflicting with the content of this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

Claims

1. An electric control box assembly, characterized in that: The utility model comprises a metal box body, a metal box cover and an insulating inner box, wherein the metal box body is provided with a first sliding connection part, the insulating inner box is provided with a second sliding connection part, the insulating inner box is slidably arranged on the metal box body through the cooperation of the second sliding connection part and the first sliding connection part, the metal box cover is fixedly connected to the insulating inner box, and in the sliding direction of the insulating inner box, the metal box body is also provided with a limiting hole, and the insulating inner box is correspondingly provided with a limiting buckle, and when the insulating inner box slides until the metal box cover abuts against the metal box body, the limiting hole cooperates with the limiting buckle to lock the insulating inner box.

2. The electric control box assembly according to claim 1, characterized in that: The limiting hole is a flanged hole; and / or, the insulating inner box also includes an insulating box body, the limiting buckle includes an elastic arm and a convex buckle protruding from the elastic arm, one end of the elastic arm is connected to the insulating box body, and the convex buckle is elastically deformed to buckle into the limiting hole.

3. The electric control box assembly according to claim 1, characterized in that: The metal box body also includes a metal box body, and the first sliding connection part is protruded from the metal box body; the insulating inner box also includes an insulating box body, and the second sliding connection part is protruded from the insulating box body; when the first sliding connection part and the second sliding connection part are slidingly connected, there is a gap between the first sliding connection part and the insulating box body.

4. The electric control box assembly according to claim 1, characterized in that: The insulating inner box also includes an insulating box body, the second sliding connection portion is arranged on the insulating box body, the second sliding connection portion extends along its sliding direction to the outside of the insulating box body to form a guide joint portion, and the guide joint portion is suitable for engaging with or separating from the first sliding connection portion; and / or, one end portion of the second sliding connection portion forms a guide joint portion, the guide joint portion is suitable for engaging with or separating from the first sliding connection portion, and the guide joint portion is provided with a chamfer.

5. The electric control box assembly according to claim 1, characterized in that: The first sliding connection part is a first sliding rail, the second sliding connection part is a second sliding rail, and the first sliding rail and the second sliding rail are nested and slidably connected; the second sliding rail includes a first sliding side and a second sliding side symmetrically arranged, and the first sliding side and the second sliding side are connected by a first connecting rib.

6. The electric control box assembly according to claim 1, characterized in that: The metal box body is provided with a limiting convex rib, and the insulating inner box is provided with a limiting groove. The limiting convex rib and the limiting groove are slidably connected along the sliding direction of the metal box body and the insulating inner box.

7. The electric control box assembly according to claim 6, characterized in that: The limiting convex rib is a trapezoidal convex rib, and the limiting groove is provided with an inverted trapezoidal opening; and / or, the extending direction of the limiting convex rib is parallel to the sliding direction of the insulating inner box.

8. The electric control box assembly according to claim 1, characterized in that: The insulating inner box can slide upward into the metal box body or slide downward into the metal box body.

9. The electric control box assembly according to claim 1, characterized in that: A terminal mounting seat is provided on the side of the insulating inner box. The terminal comprises a power side and a load side. When the terminal is installed on the terminal mounting seat, the power side and the load side are arranged along the sliding direction of the insulating inner box.

10. An air conditioner, characterized in that: The air conditioner comprises the electric control box assembly as claimed in any one of claims 1 to 9.

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