Electric control box cover, electric control box and air conditioner

Abstract

The utility model discloses an electric control box cover, an electric control box and an air conditioner, and relates to the technical field of electric control boxes, the electric control box cover comprises a decorative shell, a fireproof plate and an insulating inner plate, the fireproof plate is installed on the inner side of the decorative shell and is clamped and fixed with the decorative shell; the insulating inner plate is installed on the inner side of the fireproof plate, and the edge of the insulating inner plate is clamped and fixed to the fireproof plate and / or the decorative shell. According to the technical scheme provided by the utility model, the electric control box with the electric control box cover is safer and more reliable, and a powerful guarantee is provided for stable operation of an air conditioning system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric control box, especially to an electric control box cover, an electric control box and an air conditioner. BACKGROUND

[0002] The box cover of the electric control box on the current market adopts the structure of "outer plastic - sheet metal - inner plastic", the inner layer plastic plays the role of insulation, the sheet metal is used for fire prevention, the outer layer plastic guarantees the appearance, in order to connect conveniently, and is connected through the screw by perforation, this mode is convenient for assembly, but because the perforation can easily lead to the weakening of the insulation of the inner layer plastic and the fireproof property of the sheet metal part, there is certain security risk. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a kind of electric control box cover, electric control box and air conditioner, to provide a kind of more safe, reliable electric control box cover of electric control box, provide strong guarantee for the stable operation of air conditioning system.

[0004] To achieve the above-mentioned purpose, the electric control box cover provided by the utility model comprises:

[0005] A decorative shell is provided.

[0006] A fireproof plate is installed on the inner side of the decorative shell and is clamped and fixed with the decorative shell.

[0007] An insulating inner plate is installed on the inner side of the fireproof plate, and the edge of the insulating inner plate is clamped and fixed on the fireproof plate and / or the decorative shell.

[0008] In an embodiment, the fireproof plate comprises a plate body and a flange provided on the edge of the plate body, the flange and the plate body form a containing groove, the insulating inner plate is arranged in the containing groove, an elastic clamping part is provided on the flange, the elastic clamping part abuts against the edge of the insulating inner plate to limit the insulating inner plate from separating from the containing groove.

[0009] In an embodiment, the elastic clamping part is a part of the flange that is warped inward from the bottom and is arranged at an angle with the flange.

[0010] In an embodiment, the flange on the opposite sides in the length direction of the fireproof plate and one side adjacent to the opposite sides is respectively provided with an elastic clamping tongue, and the three elastic clamping tongues are distributed in a triangular shape.

[0011] In an embodiment, the decorative shell comprises a shell plate body, a slot part and a mounting part oppositely provided on the shell plate body, and the slot part and the mounting part protrude from the inner side of the shell plate body.

[0012] The flange is provided with a clamping part, one end of the plate body away from the clamping part is provided with a first inserting part, the fireproof plate is positioned by the first inserting part and the slot part, and the fireproof plate is clamped and fixed on the decorative shell by the clamping part.

[0013] In an embodiment, the shell plate body is further provided with a buckle protruding from the inner side of the shell plate body, the plate body is provided with a buckle groove corresponding to the buckle, and the buckle passes through the buckle groove and clamps the plate body.

[0014] The insulating inner plate is provided with a relief bump corresponding to the buckle and the buckle groove, and the relief bump covers the buckle and the buckle groove.

[0015] In an embodiment, the insulating inner plate is provided with a second inserting part, the flange is provided with a relief notch corresponding to the second inserting part, and the second inserting part is positioned by the relief notch and the slot part; the second inserting part and at least one elastic clamping part are arranged at opposite ends of the insulating inner plate.

[0016] In an embodiment, the insulating inner plate is provided with a reinforcing protruding rib.

[0017] The utility model discloses still propose a kind of electric control box, including electric control box body and the electric control box cover as described above, and the electric control box cover covers the electric control box body.

[0018] The utility model discloses still propose a kind of air conditioner, including the electric control box as described above.

[0019] The technical scheme of the utility model discloses a clamping and fixing of the fireproof plate and the decorative shell, which is closely connected with the fireproof plate and the decorative shell without penetrating fasteners, to avoid the risk of electric shock. The insulating inner plate is fixed to the decorative shell or the fireproof plate or both by a clamping structure, ensuring stable installation of the inner plate while maintaining the overall structural strength of the electric control box cover. Compared with the prior art, the clamping and fixing method avoids the penetration of fasteners through the inner layer of insulating plastic and the fireproof plate, reducing the risk of electric shock and improving the fireproof performance of the electric control box. Moreover, the clamping and fixing method simplifies the installation process of the electric control box cover, improving the installation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] To more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in these drawings without creative labor.

[0021] Figure 1The utility model provides an electric control box cover one embodiment's structure schematic drawing is provided.

[0022] Figure 2 For Figure 1 The utility model discloses a structure schematic drawing of hiding insulation inner board rear one embodiment.

[0023] Explanation of the attached drawings:

[0024] 100, decorative shell, 110, shell plate body, 120, slot part, 130, installation part, 140, buckle,

[0025] 200, fireproof plate, 210, plate main body, 220, flanging, 221, clamping part, 222, avoiding gap, 230, buckle groove, 230, containing groove, 240, elastic clamping part, 241, elastic clamping tongue, 250, first plug-in part, 300, insulation inner board, 310, avoiding convex, 320, second plug-in part, 330, reinforcing convex rib.

[0026] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the embodiment. Specific implementation

[0027] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0028] It should be noted that if the embodiment of the utility model involves directional indication (such as up, down, left, right, front, back, etc.), the directional indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain posture, if the certain posture changes, then the directional indication also changes accordingly.

[0029] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears in the whole text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0030] In an embodiment of the utility model, the electric control box includes electric control box body (not shown in the drawing) and electric control box cover, the electric control box cover is arranged on the electric control box body, and the electric control box is a crucial component in air conditioning system, which is mainly responsible for controlling and adjusting various functions of air conditioner, such as temperature adjustment, wind speed control, mode switching, etc. Circuit board, relay, fuse and other electrical elements are integrated inside.

[0031] The electric control box cover on the current market is mostly of "plastic-metal-plastic" structure, which solves the problems of electric shock and fire prevention to a certain extent, but there are still certain safety hazards in the design of fastener penetrating the inner layer insulating plastic and metal part.

[0032] In order to solve this problem, please refer to Figure 1 And Figure 2 The utility model provides a kind of safer, reliable electric control box cover, electric control box cover includes decorative shell 100, fireproof plate 200 and insulating inner plate 300, fireproof plate 200 is fixed with decorative shell 100 by clamping;Insulating inner plate 300 is installed on fireproof plate 200, and the edge of insulating inner plate 300 is clamped by fireproof plate 200 to fix insulating inner plate 300, and decorative shell 100, fireproof plate 200 and insulating inner plate 300 are stacked in sequence.Electric control box cover includes decorative shell 100, fireproof plate 200 and insulating inner plate 300 three parts, decorative shell 100 as the outermost layer of electric control box cover, mainly plays the role of protection, prevent external environment from damaging internal electrical elements;Fireproof plate 200 is located between decorative shell 100 and insulating inner plate 300, and is made of material with excellent fireproof performance, effectively blocks the spread of fire, improves the fire safety of electric control box;Insulating inner plate 300 is closely attached to fireproof plate 200, used for installing and fixing internal electrical elements, simultaneously as the inner layer of electric control box cover, provides additional insulation protection.

[0033] The technical solution of this utility model employs a snap-fit ​​fixing method between the fireproof plate 200 and the decorative outer shell 100, ensuring a tight connection between the fireproof plate 200 and the decorative outer shell 100 without the need for penetrating fasteners, thus avoiding the risk of electric shock. The insulating inner plate 300 is fixed to the decorative outer shell 100, the fireproof plate 200, or both via a snap-fit ​​structure, ensuring stable installation of the inner plate while maintaining the overall structural strength of the electrical control box cover. Compared to existing technologies, this solution, through the snap-fit ​​fixing method, avoids fasteners penetrating the inner insulating plastic layer and the fireproof plate 200, reducing the risk of electric shock and improving the fire resistance of the electrical control box. Furthermore, the snap-fit ​​fixing method simplifies the installation process of the electrical control box cover and improves installation efficiency.

[0034] The manufacturing process of the electrical control box cover is roughly as follows:

[0035] First, design the components of the electrical control box cover: based on the size and functional requirements of the electrical control box, design the shape, size, and buckle structure of the decorative outer shell 100, fireproof board 200, and insulating inner board 300.

[0036] Secondly, manufacture the components: use injection molding and other processes to manufacture the decorative outer shell 100 and the insulating inner panel 300; use cutting, stamping and other processes to manufacture the fireproof board 200.

[0037] Finally, assemble the electrical control box cover: snap the fireproof board 200 onto the decorative outer shell 100; then snap the insulating inner board 300 onto the edge of the fireproof board 200 to complete the assembly of the electrical control box cover. Alternatively, this step can be performed by first snapping the insulating inner board 300 onto the fireproof board 200, and then installing the resulting assembly onto the decorative outer shell 100.

[0038] In one embodiment, the fireproof board 200 includes a main body 210 and a plurality of flanges 220 disposed on the edge of the main body 210. The plurality of flanges 220 and the main body 210 enclose a receiving groove 230. An insulating inner plate 300 is disposed within the receiving groove 230. At least two adjacent flanges 220 are each provided with at least one elastic locking portion 240, which abuts against the surface of the insulating inner plate 300 to prevent it from detaching from the receiving groove 230. The receiving groove 230 formed by the main body 210 of the fireproof board 200 is for the installation of the insulating inner plate 300. The plurality of flanges 220 can be formed by two or more flanges to form the shape of the receiving groove 230, such as two "7"s enclosing a square frame. At the same time, the elastic locking portions 240 are designed on at least two adjacent flanges 220. These elastic locking portions 240 can abut against the surface of the insulating inner plate 300, thereby effectively preventing it from detaching from the receiving groove 230. The flexible locking part 240 further enhances the connection strength between the insulating inner plate 300 and the fireproof plate 200, making them less prone to separation under external force, thereby improving the durability and service life of the electrical control box cover. The locking action of the flexible locking part 240 avoids the risk of electric shock caused by fasteners penetrating the inner insulating plastic layer. The design of the flexible locking part 240 makes the installation of the insulating inner plate 300 simpler and faster. No additional fasteners or tools are required; simply place the insulating inner plate 300 into the receiving groove 230, and the locking action of the flexible locking part 240 will secure it. This not only reduces installation costs but also improves installation efficiency.

[0039] Of course, in other embodiments, the fireproof board 200 may have a buckle 140 / slot protruding on its surface, and the insulating inner board 300 may have a corresponding buckle 140 protruding on its surface, like an inverted "bench" stacked together, with the buckle 140 engaging with the buckle 140.

[0040] Specifically, the elastic latch 240 is a portion of the flange 220 that curves upward from the bottom, and the elastic latch 241 is angled relative to the flange 220. The design of the elastic latch 241 simplifies the installation and removal of the insulating inner plate 300. During installation, simply push the inner plate gently into the receiving groove 230, and the elastic latch 241 will automatically lock the inner plate in place. During removal, simply press gently at the base of the latch to cause it to elastically deform and release the inner plate. This design not only improves the convenience of installation and removal but also reduces operational difficulty and cost.

[0041] Without loss of generality, the elastic clip 240 can also be a hollow, raised elastic sheet, that is, the two ends of the elastic sheet are fixed on the flange 220, the middle is raised, and the deformation facilitates the installation of the insulating inner plate 300; after returning to the original position, it restricts the detachment of the insulating inner plate 300.

[0042] Specifically, in one embodiment, two elastic latches 241 are provided, such as those on opposite or adjacent sides, to engage the insulating inner plate 300. For a more secure fixation, in another embodiment, one elastic latch 241 is provided on each of the opposite sides of the fireproof plate 200 along its length and on one of the sides adjacent to the opposite sides, with the three elastic latches 241 arranged in a triangular pattern. This triangular arrangement of the three elastic latches 241 ensures stable support for the insulating inner plate 300 under external forces from all directions, improving not only the fixation's firmness but also enhancing the overall deformation resistance of the electrical control box cover.

[0043] The above describes the installation of the insulating inner plate 300 and the fireproof plate 200. The following describes the snap-fit ​​structure between the decorative outer shell 100 and the fireproof plate 200.

[0044] The fireproof board 200 and the decorative outer shell 100 are fixed by snap-fit.

[0045] In one embodiment, the decorative outer shell 100 includes a shell plate 110 and a slot portion 120 and a mounting portion 130 disposed opposite to each other on the shell plate 110. The slot portion 120 and the mounting portion 130 protrude from the shell plate 110 toward the fireproof board 200. A snap-fit ​​portion 221 is provided on the flange 220, and a first insertion portion 250 is formed on the plate body 210. The fireproof board 200 is inserted and positioned into the slot portion 120 through the first insertion portion 250, and is snapped and fixed onto the decorative outer shell 100 through the snap-fit ​​portion 221 and the mounting portion 130. The shell plate 110 serves as the main body of the decorative outer shell 100, providing basic structure and support. The slot portion 120 protrudes from the shell plate 110 toward the fireproof board 200, forming a slot structure that allows the fireproof board 200 to be easily inserted and fixed into the decorative outer shell 100. The mounting portion 130 also protrudes from the shell body 110 towards the fireproof plate 200, but unlike the slot portion 120, it is mainly used to engage with the snap-fit ​​portion 221 on the fireproof plate 200. This ensures that after the fireproof plate 200 is inserted into the slot portion 120, it can be more securely fixed to the decorative shell 100 through the snap-fit ​​portion 221 and the mounting portion 130. The fireproof plate 200 is composed of a flange 220, a plate body 210, and a snap-fit ​​portion 221, etc. These parts cooperate with the slot portion 120 and the mounting portion 130 of the decorative shell 100 to achieve snap-fit ​​fixation.

[0046] Specifically, the fireproof board 200 is positioned by being inserted into the slot 120 via the first insertion part 250, and is fixed to the decorative shell 100 by being snapped into the mounting part 130 via the snap-fit ​​part 221. This restricts the movement of the fireproof board 200 in the horizontal direction relative to the decorative shell 100. To further restrict the movement of the fireproof board 200 in the vertical direction relative to the decorative shell 100, the shell plate 110 is also provided with a buckle 140 protruding from the shell plate 110 toward the fireproof board 200. The plate body 210 is provided with a buckle groove 230 corresponding to the buckle 140. The buckle 140 passes through the buckle groove 230 and snaps into the plate body 210. The insulating inner plate 300 is provided with an avoidance protrusion 310 corresponding to the buckle 140 and the slot. The avoidance protrusion 310 covers and shields the buckle 140 and the slot. When the fireproof board 200 is inserted into the slot 120 of the decorative outer shell 100, the insertion part and the slot 120 fit tightly together, achieving initial positioning in the horizontal direction. Subsequently, the snap-fit ​​part 221 snaps into the mounting part 130, further enhancing the fixing effect in the horizontal direction. In the vertical direction, the buckle 140 passes through the buckle groove 230 and snaps into the board body 210, effectively restricting the movement of the fireproof board 200. The presence of the avoidance protrusion 310 not only ensures the concealment of the buckle 140 and the buckle groove 230, but also increases the structural strength of the insulating inner board 300. The avoidance protrusion 310 covers and conceals the buckle 140 and the buckle groove 230, ensuring the integrity and aesthetics of the internal structure, reducing the openings in the fireproof layer and the insulation layer, and reducing the risk of fire spread and electric shock.

[0047] In other embodiments, the decorative housing 100 is provided with resilient clips 140, which may be inwardly bent elastic sheets or resilient protrusions. The fireproof plate 200 has grooves or holes that match the resilient clips 140 for receiving and securing them. When the fireproof plate 200 approaches the decorative housing 100, the resilient clips 140 deform under pressure and insert into the grooves or holes on the fireproof plate 200. Once fully inserted, the clips 140 return to their original shape and are securely locked in the grooves or holes, thereby fixing the fireproof plate 200 to the decorative housing 100.

[0048] In other embodiments, the decorative housing 100 is provided with a slide rail or groove to guide the sliding of the fireproof panel 200. The fireproof panel 200 is provided with a sliding component, such as a slider or strip, that matches the slide rail or groove. The fireproof panel 200 slides along the slide rail or groove to a predetermined position via the sliding component. During the sliding process, the engaging portion 221 (such as the elastic latch 241) on the fireproof panel 200 gradually matches and locks into place with the snap 140 or fixing groove on the decorative housing 100. Once slid into place, the engaging portion 221 is firmly fixed in the snap 140 or fixing groove, thereby fixing the fireproof panel 200 to the decorative housing 100.

[0049] In addition, to further improve the stability of the insulating inner plate 300, the insulating inner plate 300 is provided with a second insertion part 320, and the flange 220 is provided with a clearance notch 222 corresponding to the second insertion part 320. The second insertion part 320 is inserted and positioned into the slot part 120 via the clearance notch 222. The second insertion part 320 and at least one elastic locking part 240 are respectively provided at opposite ends of the insulating inner plate 300. In this way, the insulating inner plate 300 is not only fixed by the fireproof plate 200, but also constrained by the decorative outer shell 100. The overall structure of the electrical control box cover composed of the decorative outer shell 100, the fireproof plate 200, and the insulating inner plate 300 is more stable.

[0050] To improve the structural strength of the inner plate, a reinforcing structure is provided on the insulating inner plate 300.

[0051] In one embodiment, the reinforcing structure comprises reinforcing ribs 330 protruding from the surface of the insulating inner plate 300 in a direction away from the decorative outer shell 100, the reinforcing ribs 330 extending along the length of the insulating inner plate 300. The presence of the reinforcing ribs 330 increases the thickness and rigidity of the insulating inner plate 300, thereby improving its structural strength. Compared to increasing the overall thickness of the insulating inner plate 300 to improve strength, the design using reinforcing ribs 330 can save material costs while ensuring strength. The design of the reinforcing ribs 330 can be integrated into the overall shape, not only improving structural strength but also potentially increasing the aesthetics of the product.

[0052] In other embodiments, a grid-like pattern of protrusions may be formed on the surface of the inner insulating plate 300. These protrusions may be intersecting lines or rectangular frames. Alternatively, a honeycomb shape may be mimicked, with multiple hexagonal or similar shaped cavities formed inside the inner insulating plate 300, surrounded by thicker plastic walls. Furthermore, wavy or corrugated protrusions may be formed on the surface of the inner insulating plate 300; these protrusions may be continuous or discontinuous.

[0053] This utility model also proposes an air conditioner (not shown in the figure), which includes an electrical control box. The specific structure of the electrical control box is as described in the above embodiments. Since this air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0054] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cover for an electrical control box, used in an electrical control box, characterized in that, The electrical control box cover includes: Decorative casing; A fireproof board is installed on the inner side of the decorative outer casing and is snap-fitted and fixed to the decorative outer casing; and An insulating inner panel is installed on the inner side of the fireproof panel, and the edge of the insulating inner panel is snapped and fixed to the fireproof panel and / or the decorative outer shell.

2. The electrical control box cover as described in claim 1, characterized in that, The fireproof board includes a board body and a flange located at the edge of the board body. The flange and the board body enclose a receiving groove. The insulating inner board is disposed in the receiving groove. The flange is provided with an elastic locking part, which abuts against the edge of the insulating inner board to prevent the insulating inner board from detaching from the receiving groove.

3. The electrical control box cover as described in claim 2, characterized in that, The elastic latch is a portion of the flange that curves inward from the bottom and is set at an angle to the flange.

4. The electrical control box cover as described in claim 3, characterized in that, An elastic latch is provided on each of the two opposite sides along the length of the fireproof board and on one of the flanges adjacent to the opposite sides, and the three elastic latches are distributed in a triangle.

5. The electrical control box cover as described in claim 2, characterized in that, The decorative outer shell includes a shell plate and a slot portion and a mounting portion disposed opposite to each other on the shell plate, wherein the slot portion and the mounting portion protrude from the inner side of the shell plate; The flange is provided with a snap-fit ​​part, and the end of the main body of the board away from the snap-fit ​​part is provided with a first insertion part. The fireproof board is inserted and positioned into the slot part through the first insertion part, and is snapped and fixed onto the decorative shell by the snap-fit ​​part and the mounting part.

6. The electrical control box cover as described in claim 5, characterized in that, The shell plate is also provided with a buckle protruding from the inner side of the shell plate. The plate body is provided with a buckle groove corresponding to the buckle. The buckle passes through the buckle groove and is engaged with the plate body. The insulating inner plate is provided with an avoidance protrusion corresponding to the buckle and the buckle groove. The avoidance protrusion covers the buckle and the buckle groove.

7. The electrical control box cover as described in claim 5, characterized in that, The insulating inner plate is provided with a second insertion part, and the flange is provided with a clearance notch corresponding to the second insertion part. The second insertion part is inserted and positioned with the slot part through the clearance notch. The second insertion part and at least one of the elastic clips are provided at opposite ends of the insulating inner plate.

8. The electrical control box cover as described in claim 1, characterized in that, The inner insulating plate is provided with reinforcing ribs.

9. An electrical control box, characterized in that, It includes an electrical control box body and an electrical control box cover as described in any one of claims 1 to 8, wherein the electrical control box cover covers the electrical control box body.

10. An air conditioner, characterized in that, Includes the electrical control box as described in claim 9.

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