Electric control box of air conditioner

Abstract

The utility model relates to an air conditioner electric control box, and belongs to the technical field of air conditioners. The air conditioner electric control box comprises an electric control board, a support, a box body, a box cover and a wire, the box cover is fixedly arranged on a front side opening of the box body and combined with the box body to form an installation cavity, the electric control board is fixedly arranged in the box body through the support, wiring ports are formed in the left side wall and the right side wall of the box body, and the wire is arranged in the wiring ports. A wire penetrates out of the wiring port after being led out of the electric control board, the portion, penetrating out of the wiring port, of the wire is set as a wire penetrating hole section, and the end, close to the inner cavity of the box body, of the wire penetrating hole section is in butt joint with a wire inner side linear section extending upwards. The ends, close to each other, of the wire penetrating hole section and the wire inner side straight line section are arranged in the wiring structural part, the outer end of the wiring structural part penetrates out of the wiring opening, the wiring inner cavity is provided with a flow guide drainage structure so that water entering the wiring inner cavity can be drained out of the box body, and the wiring structural part is fixedly arranged on the support or the box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of air conditioner electric control box, belong to air conditioner technical field. BACKGROUND

[0002] Air conditioner electric control box is generally made of sheet metal material, and a hole is opened in the side surface of the sheet metal electric control box to facilitate the passage of wiring harness. To prevent the wiring harness from being cut by the sharp edge of the hole when passing through, a wire protection ring matching the hole is usually used to wrap it. To make the operation more convenient and the wiring harness more neat when the cable is routed, the hole is often opened at the edge of the side surface of the electric control box, making it appear notched. However, the existing wire protection ring is usually simple in shape, such as ring or U-shaped, and the connection between the wire protection ring and the hole is not very firm. When installing or dismounting the electric control box, the wire protection ring is easily loosened and fallen off due to being touched. In addition, the through hole in the middle of the existing wire protection ring for the passage of the wiring harness often cannot match the cross-sectional shape and size of the wiring harness, resulting in a gap between the wiring harness and the wire protection ring. Due to the characteristics of air conditioners, condensate water is easily produced inside. The electric control box is usually placed at the lower part of the air conditioner body, and the wiring harness passes through the hole from top to bottom and enters the electric control box. The condensate water will slide down along the wiring harness and enter the electric control box, which can easily cause circuit short circuit and damage the printed board.

[0003] In order to overcome the above-mentioned defects of the air conditioner electric control box, the Chinese patent document with publication number CN217737492U discloses a wire grommet, which is used to be installed on the electric control box. The side wall of the electric control box is provided with a fixing structure and the edge of the side wall has a wire passage for the wire to pass through. The wire grommet includes: a protective part, which is used to be connected to the wire passage and wrap the edge side wall of the wire passage, and the protective part has a wire passage with a smooth inner wall; a limiting part, which is connected to the protective part, and the limiting part is used to connect to the limiting structure opened on the side wall of the electric control box to achieve limited fixation of the wire grommet. The wire protection sleeve also has a wire-holding structure, which is connected to the protection part. The wire-holding structure is used to limit the direction of the wire so that a submerged bend shape is formed before the wire enters the electric control box. The wire-holding structure is used to ensure that the cable enters the electric control box from the bottom to the top, avoiding the situation where condensed water on the cable slides down the line into the electric control box under certain conditions, causing damage to the printed circuit board in the electric control box; the wire-holding structure includes a connecting part connected to one side of the protection part and a wire-holding part fixed to the end of the connecting part away from the protection part, the connecting part is used to limit the direction of the wire so that a submerged bend structure opposite to its running direction is formed before it enters the wire passing port, the wire-holding part and the connecting part form a wire-holding space to limit the submerged bend structure so that the wire fits the outer wall of the electric control box. However, the above scheme still has the following defects: (1) Its wire-holding structure is similar to a winding pile, and the submerged bend structure only forms a short upward-extending bend outside the wire-passing port, and does not make specific restrictions on the direction of the cable at the submerged bend structure after it enters the electrical control box from the wire-passing port. However, no matter what the direction is, there is still a risk of condensed water entering the electrical control box from the wire-passing port to a certain extent; (2) The wire-passing port area is not effectively shielded, and the fire protection function design is not considered; (3) Its wire-holding structure is designed on the wire guard, and the wire guard is an independently set part, which has certain deficiencies in cost management, assembly efficiency, structural stability, etc. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an air-conditioning electric control box with better waterproof effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: the air conditioner electric control box includes an electric control board, a bracket, a box body, a box cover and a wire. The box cover is fixedly arranged at the front opening of the box body and is combined with the box body to form an installation cavity. The electric control board is fixedly arranged in the box body through the bracket. At least one wiring opening is provided at the left and right side walls of the box body. The wire is led out from the electric control board and then passes through the wiring opening. The position where the wire passes through the wiring opening is set as a wire penetration section. The end of the wire penetration section close to the inner cavity of the box body is upward. The inner straight sections of the extended wires are connected to each other, and at least one end of the wire perforated section and the inner straight section of the wire close to each other is arranged in a wiring structure. The wiring structure is a wiring tube or a wiring trough. The wiring structure has a wiring inner cavity whose axial direction matches the direction of the wire perforated section and the inner straight section of the wire. The outer end of the wiring structure passes through the wiring port, and the wiring inner cavity has a diversion and drainage structure to discharge water entering the wiring inner cavity to the outside of the box. The wiring structure is fixedly arranged on the bracket or the box body.

[0006] It is further preferred that the conductor penetration section is a submerged bend structure, and the vertical section corresponding to the lowest point of the conductor penetration section is located outside the end surface of the port outside the wiring cavity.

[0007] It is further preferred that the wire penetration section is a submerged bend structure, the axis of the wiring cavity of the wiring structure is arranged in a U shape, and a drainage hole is correspondingly provided at the lowest point of the wiring cavity to allow water entering the wiring cavity to be discharged out of the box body.

[0008] It is further preferred that: the wiring structure and the bracket are an integrated structure; the wiring opening is a U-shaped notch, and the wiring structure is a wiring groove, the outer wall of the wiring groove at this end of the wire perforation section is used to arrange the wire and the inner wall of the wiring opening are nested and docked with each other, and the end face of the opening of the U-shaped notch and the end face of the opening of the wiring groove are flush and both fit with the inner surface of the box cover.

[0009] It is further preferred that the wiring structure includes an inclined section of the wiring trough and a vertical section of the wiring trough, the vertical section of the wiring trough is vertically extended and arranged in the box body, one end of the inclined section of the wiring trough is connected to the vertical section of the wiring trough, and the other end passes through the wiring opening, and the outer end of the inclined section of the wiring trough is inclined and extends downward compared to its inner end.

[0010] It is further preferred that: the bracket is provided with a boss for arranging the wiring trough, and the outer side wall of the boss close to the wiring opening is in contact with the inner side wall of the box body or forms a gap fit; the outer side wall of the vertical section of the wiring trough close to the wiring opening is in contact with the inner side wall of the box body or forms a gap fit; the outer side wall of the inclined section of the wiring trough close to the lower end of the box body is provided with a retaining rib extending vertically downward, the outer surface of the retaining rib facing the front side of the box body is flush with the end face of the opening of the wiring trough and both are in contact with the inner surface of the box cover, the outer surface of the retaining rib close to the wiring opening is in contact with the inner side wall of the box body or forms a gap fit, the retaining rib, boss and wiring structural parts are an integrated structure, and the vertical projection formed by the three on the inner side wall of the box body can completely cover the wiring opening, and the bracket, box body and box cover are all made of flame retardant material.

[0011] It is further preferred that: the upper end notch position of the vertical section of the wiring trough and the outer end notch position of the inclined section of the wiring trough are both provided with a chamfered structure, and the lower end surface of the retaining rib is provided with a chamfered structure at the end facing the box cover; the corner positions of the inner wall of the wiring trough are all provided with a chamfered structure.

[0012] It is further preferred that: a plurality of wire-holding limiters are fixedly arranged on the bracket, and the wire-holding limiters and the corresponding inner side walls of the box body jointly define a wiring channel, wherein at least one wire-holding limiter is arranged directly below the wiring structure, and wherein at least one wire-holding limiter is arranged at the top side of the box body.

[0013] It is further preferred that at least one wire-locking limiter is arranged at the bottom side of the box body.

[0014] It is further preferred that: the left side wall and the right side wall of the box body are respectively provided with wiring openings.

[0015] It is further preferred that the wire limiting piece is an elastic snap structure, and the wire limiting piece includes a snap connecting plate and a hook, one end of the snap connecting plate is fixedly connected to the bracket, and the hook is arranged at the end of the snap connecting plate away from the bracket, and the hook is located on the side of the snap connecting plate facing the wiring channel.

[0016] It is further preferred that: the snap connecting plate is arranged to extend horizontally along the front-to-back direction of the box body; the wiring structure has a first wiring inner cavity that matches the straight line segment inside the wire, and the inner surface of the upper port of the first wiring inner cavity close to the center of the inner cavity of the box body is set as the first reference surface, and the wire limiting member arranged directly below the wiring structure is set as the first snap, and the outer surface of the snap connecting plate of the first snap facing the wiring channel is set as the second reference surface. In the horizontal direction corresponding to the left and right directions of the box body, the second reference surface is closer to the wiring opening of the side wall of the box body than the first reference surface.

[0017] The beneficial effects of the present invention are as follows: after the wires enter the electric control box, they are arranged to extend upward, and the wires are laid out through a wiring cavity whose axial direction matches the direction of the wire perforation section and the inner straight section of the wire. The vertical section of the wiring cavity (corresponding to the inner straight section of the wire) can effectively block water, and the wiring cavity has its own diversion and drainage structure. Even if a small amount of condensed water enters the wiring cavity along the wire, it can flow out of the box body along the wiring cavity, effectively ensuring the waterproof effect. In the preferred embodiment, the wires still mainly rely on the submerged bend structure to achieve the waterproof function, and the wiring cavity is used to achieve auxiliary waterproofing. This double waterproof structure can further fully ensure the waterproof effect. In addition, the wiring structure and the bracket are an integrated structure, which reduces the number of parts, improves assembly efficiency, and makes the overall structure more stable. The retaining ribs, bosses and wiring structural parts in the bracket are an integrated structure, and the overall structure formed by the three can completely cover the wiring opening. The bracket, box body and box cover are all made of flame-retardant materials. When the electric control protection of the electric control board fails, the electrical components have poor contact and cause ignition, and the inside of the electric control box burns, it can effectively prevent the flames from rushing out of the electric control box, protecting the air conditioner and preventing the air conditioner from burning, thereby playing a fire prevention role. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model after the box cover is removed.

[0020] Figure 3 yes Figure 2 An enlarged schematic diagram of the local structure of the area where the wiring opening on the left side of the electric control box is located.

[0021] Figure 4 yes Figure 2 An enlarged schematic diagram of the local structure of the area where the wiring outlet on the right side of the electric control box is located.

[0022] Components marked in the figure: electronic control board 10, bracket 20, wiring structure 21, boss 22, retaining rib 23, rounded corner structure 24, wire clamping limiter 25, first reference surface 26, second reference surface 27, box body 30, wiring opening 31, box cover 40, wire 50, wire perforated section 51, wire inner straight section 52. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 4As shown, the utility model includes an electric control board 10, a bracket 20, a box body 30, a box cover 40 and a wire 50. The box cover 40 is fixedly arranged at the front opening of the box body 30 and is combined with the box body 30 to form an installation cavity, which is equivalent to the specific structure of the electric control box below being specifically described with the open end of the box body 30 located at the front side of the electric control box, and the box cover 40 is used to cover and close the open end of the box body 30. The electric control board 10 is fixedly arranged in the box body 30 by the bracket 20. At least one wiring opening 31 is provided on the left and right side walls of the box body 30, which is equivalent to the wiring opening 31 being arranged on the left or right side of the electric control box, or on both sides at the same time. Regardless of which arrangement is adopted, one or more wiring openings 31 can be arranged on a single side according to actual conditions. To facilitate wiring, the embodiment shown in the drawings is provided with wiring openings 31 on the left and right walls of the box body 30. After being led out of the electrical control board 10, the wire 50 passes through the wiring opening 31. The portion where the wire 50 passes through the wiring opening 31 is designated as a wire penetration section 51. The end of the wire penetration section 51, which is closest to the interior of the box body 30, is connected to an upwardly extending inner straight wire section 52. The inner straight wire section 52 preferably extends vertically upward to facilitate wiring. At least the ends of the wire penetration section 51 and the inner straight wire section 52, which are closest to each other, are disposed within the wiring structure 21. A corresponding wiring structure 21 is provided for each wiring opening 31. The wiring structure 21 is a wiring tube or wiring trough. It has an inner wiring cavity whose axial direction matches the orientation of the wire perforated section 51 and the inner straight section 52 of the wire. The outer end of the wiring structure 21 extends through the wiring opening 31. This means that one axial end of the wiring structure 21 is located outside the box body 30 (this end is the outer end of the wiring structure 21), while the other axial end is located inside the box body 30 (this end is the inner end of the wiring structure 21). Accordingly, the inner straight section 52 of the wire is also necessarily located inside the box body 30. The wiring cavity has a drainage structure to drain water that enters the cavity out of the box body 30. The wiring structure 21 is fixedly mounted on the bracket 20 or the box body 30. To facilitate processing and manufacturing, improve assembly efficiency, and effectively ensure the reliability of the overall structure, in a preferred embodiment, the wiring structure 21 and the bracket 20 are integrated. In certain alternative embodiments, the wiring structure 21 can also be formed integrally with the box body 30. In other alternative embodiments, the wiring structure can also be independently fixed to the bracket 20 or the box body 30. Even if the wiring cavity has both diversion and drainage functions, the drainage structure can generally be directly implemented by using the external port of the wiring structure 21. In some alternative embodiments, drainage holes can also be added to the portion of the wiring structure 21 located outside the box body 30. The diversion structure only needs to ensure that water entering the wiring cavity is collected at the drainage structure and does not flow into the electrical control box.

[0025] It is understandable that for the specific implementation of each component of the above-mentioned electric control box, the parts not described in detail in the present invention can be implemented with reference to the existing technology. The key technical point of the above-mentioned scheme is to improve the wiring method at the wiring port 31, replacing the traditional wire clamping structure similar to the winding pile, and instead arrange the wire perforation section 51 and the inner straight section 52 of the wire at the wiring port 31 as a whole in a wiring pipe or a wiring trough, which can better restrain the wire 50 at this position. More importantly, the wiring pipe or wiring trough is a relatively more closed structure with a wiring cavity, which has its own diversion and drainage structure. Even if a small amount of condensed water enters the wiring cavity along the wire 50, it can also flow out of the box body 30 along the wiring cavity, effectively ensuring the waterproof effect.

[0026] To further enhance the waterproofing effect, the conductor perforation section 51 is a submerged bend structure. The vertical section corresponding to the lowest point of the conductor perforation section 51 is located outside the end face of the outer port of the wiring cavity. This is equivalent to the preferred embodiment, in which the conductor 50 still relies primarily on the submerged bend structure for waterproofing, while the wiring cavity is used for auxiliary waterproofing. This dual waterproof structure further ensures a fully waterproof effect. In this embodiment, the wiring structure 21 can generally directly use the outer port of the wiring cavity for drainage.

[0027] When the conductor perforation section 51 adopts a submerged bend structure, the wiring structure 21 can also adopt another preferred embodiment. The axis of the wiring cavity of the wiring structure 21 is arranged in a U shape, and a drainage hole is provided at the lowest point of the wiring cavity to allow water entering the wiring cavity to be discharged outside the box body 30. After adopting this structure, a better restraint effect can be provided for the conductor. Generally, the submerged bend structure can be entirely accommodated in the wiring structure 21. In some embodiments, the outer straight section of the conductor that abuts the outer end of the conductor perforation section 51 can also be accommodated in the wiring structure 21.

[0028] Regarding the integrated structure between the wiring structure 21 and the bracket 20, a further preferred solution is as follows to facilitate wiring and processing: the wiring opening 31 is a U-shaped notch, and the wiring structure 21 is a wiring trough. The outer wall of the wiring trough, which is used to arrange the wire perforation section 51, and the inner wall of the wiring opening 31 are nested and docked (they can be in close contact or have a certain gap). The end surface of the opening of the U-shaped notch and the end surface of the opening of the wiring trough are flush and both are in close contact with the inner surface of the box cover 40. The wiring trough is a U-shaped groove that matches the U-shaped notch. The U-shaped groove includes at least a bottom wall plate and two side walls. The bottom wall plate can be straight or a smooth, continuous curve. A straight shape is typically used. A rounded corner structure 24 is then provided at the corner where the bottom wall plate and the two side walls meet. The use of a wiring trough structure facilitates wiring, and the wires 50 can be inserted through the opening of the wiring trough.

[0029] To simplify and ensure reliability, the wiring structure 21 includes an inclined wiring trough section and a vertical wiring trough section. The vertical wiring trough section extends vertically within the box body 30. One end of the inclined wiring trough section is connected to the vertical wiring trough section, and the other end passes through the wiring opening 31. The outer end of the inclined wiring trough section extends downwardly relative to its inner end (the downward direction specifically refers to the direction in which the axis of the inclined wiring trough section extends). This not only provides a good water barrier effect, but also allows the outer end of the inclined wiring trough section to directly serve as a drain outlet, which is beneficial for diversion and drainage.

[0030] Preferably, the bracket 20 is provided with a boss 22 for arranging the wiring groove, and the outer wall of the boss 22 near the wiring opening 31 is in contact with the inner wall of the box body 30 or forms a clearance fit; the outer wall of the vertical section of the wiring groove near the wiring opening 31 is in contact with the inner wall of the box body 30 or forms a clearance fit; the outer wall of the inclined section of the wiring groove near the lower end of the box body 30 is provided with a vertically downward extending rib 23, which faces the front of the box body 30 The outer surface of this side is flush with the end face of the opening of the wiring trough and is in contact with the inner surface of the box cover 40. The outer surface of the retaining rib 23 near the wiring opening 31 is in contact with the inner wall of the box body 30 or forms a gap fit. The retaining rib 23, the boss 22 and the wiring structure 21 are an integrated structure, and the vertical projection formed by the three on the inner wall of the box body 30 can completely cover the wiring opening 31. The bracket 20, the box body 30 and the box cover 40 are all made of flame-retardant materials. The above structure can effectively achieve the fire prevention function. In the case of failure of the electric control protection of the electric control board, poor contact of the electrical components causing ignition, and combustion inside the electric control box, the above structure is used to prevent the flames from rushing out of the electric control box, protecting the air conditioner, and preventing the air conditioner from burning, thereby playing a fire prevention role.

[0031] To effectively prevent the convex portion of the wire trough from scratching the wires and hands during assembly and improve assembly efficiency, rounded corners 24 are provided at the upper notch of the vertical section of the wire trough and the outer notch of the inclined section of the wire trough. The lower end surface of the retaining rib 23 also has a rounded corner 24 at the end facing the box cover 40. To effectively prevent the inner wall of the wire trough from scratching the wires during assembly, rounded corners 24 are provided at the inner wall of the wire trough.

[0032] In order to facilitate the wiring of the wires 50 inside the electric control box, a plurality of wire-holding retainers 25 (preferably an integrated structure with the bracket 20) are fixedly provided on the bracket 20. The wire-holding retainers 25 and the corresponding inner side walls of the box body 30 jointly define a wiring channel, wherein at least one wire-holding retainer 25 is provided directly below the wiring structure 21. Here, directly below only means that the wire-holding retainer 25 and the wiring structure 21 are located on the same side (left or right) of the electric control box, and the wire-holding retainer 25 is provided in the area below the wiring structure 21, wherein at least one wire-holding retainer 25 is provided on the top side of the box body 30. This can improve the efficiency of the winding of the wires 50 and can also effectively ensure the stability of the fixed winding of the multi-strand wires 50. According to actual conditions, at least one wire-holding retainer 25 can also be provided at the bottom side of the box body 30.

[0033] To ensure a simple and reliable structure that facilitates wiring while effectively limiting the position of the wire 50, the wire retaining member 25 preferably employs an elastic snap-fit ​​structure. The wire retaining member 25 comprises a snap-fit ​​connecting plate and a hook. One end of the snap-fit ​​connecting plate is fixedly connected to the bracket 20, and the hook is disposed at the end of the snap-fit ​​connecting plate away from the bracket 20, and is located on the side of the snap-fit ​​connecting plate facing the wiring channel. This allows the elastic snap-fit ​​structure's elastic deformation to be utilized during wiring, making it easier to secure the wire 50 within the wiring channel. Once wiring is complete, the hook effectively serves as a limiter.

[0034] Preferably, the snap-fit ​​connecting plate is arranged to extend horizontally along the front-to-back direction of the box body 30; the wiring structure 21 has a first wiring inner cavity that matches the inner straight segment 52 of the wire (in a preferred embodiment, the axis of the first wiring inner cavity is arranged vertically), the inner surface of the upper end of the first wiring inner cavity close to the center of the inner cavity of the box body 30 is set as the first reference surface 26, the wire clamping limiter 25 arranged directly below the wiring structure 21 is set as the first snap, and the outer surface of the snap-fit ​​connecting plate of the first snap facing the wiring channel is set as the second reference surface 27. In the horizontal direction corresponding to the left and right directions of the box body 30, the second reference surface 27 is closer to the wiring opening 31 of the side wall of the box body 30 than the first reference surface 26. This arrangement can improve the degree of convergence of the wire 50 after it is fixed and wound, making it less likely to become loose and improving stability.

Claims

1. An air conditioner electric control box, comprising an electric control board (10), a bracket (20), a box body (30), a box cover (40) and a wire (50), wherein the box cover (40) is fixedly arranged at the front opening of the box body (30) and is combined with the box body (30) to form an installation cavity, the electric control board (10) is fixedly arranged in the box body (30) through the bracket (20), at least one wiring opening (31) is provided at the left and right side walls of the box body (30), the wire (50) is led out from the electric control board (10) and passes through the wiring opening (31), and the portion where the wire (50) passes through the wiring opening (31) is set as a wire through-hole section (51), characterized in that: One end of the wire perforation section (51) close to the inner cavity of the box body (30) is connected to the inner straight section (52) of the wire extending upward, and at least one end of the wire perforation section (51) and the inner straight section (52) of the wire close to each other is arranged in a wiring structure (21), and the wiring structure (21) is a wiring tube or a wiring groove. The wiring structure (21) has a wiring inner cavity whose axial direction matches the direction of the wire perforation section (51) and the inner straight section (52) of the wire. The outer end of the wiring structure (21) passes through the wiring opening (31), and the wiring inner cavity has a diversion and drainage structure so that water entering the wiring inner cavity is discharged to the outside of the box body (30). The wiring structure (21) is fixedly arranged on the bracket (20) or the box body (30).

2. The air conditioner electric control box according to claim 1, characterized in that: The conductor penetration section (51) is a submerged bend structure, and the vertical section corresponding to the lowest point of the conductor penetration section (51) is located outside the end surface of the port outside the wiring cavity.

3. The air conditioner electric control box according to claim 1, characterized in that: The conductor perforation section (51) is a submerged bend structure, the axis of the wiring cavity of the wiring structure (21) is arranged in a U shape, and a drainage hole is correspondingly provided at the lowest point of the wiring cavity so that water entering the wiring cavity can be discharged to the outside of the box body (30).

4. The air conditioner electric control box according to claim 1, characterized in that: The wiring structure (21) and the bracket (20) are an integrated structure; the wiring opening (31) is a U-shaped notch, and the wiring structure (21) is a wiring groove. The outer wall of the wiring groove is used to arrange the wire perforation section (51) and the inner wall of the wiring opening (31) are nested and docked with each other, and the end face of the opening of the U-shaped notch and the end face of the opening of the wiring groove are flush and both are in contact with the inner surface of the box cover (40).

5. The air conditioner electric control box according to claim 4, characterized in that: The wiring structure (21) includes an inclined wiring trough section and a vertical wiring trough section. The vertical wiring trough section is vertically extended and arranged in the box body (30). One end of the inclined wiring trough section is connected to the vertical wiring trough section, and the other end passes through the wiring opening (31). The outer end of the inclined wiring trough section is inclined and extends downward compared to its inner end.

6. The air conditioner electric control box according to claim 5, characterized in that: The bracket (20) is provided with a boss (22) for arranging a wiring groove, and the outer wall of the boss (22) close to the wiring opening (31) is in contact with the inner wall of the box body (30) or forms a clearance fit; the outer wall of the vertical section of the wiring groove close to the wiring opening (31) is in contact with the inner wall of the box body (30) or forms a clearance fit; the outer wall of the inclined section of the wiring groove close to the lower end of the box body (30) is provided with a vertically extending downwardly extending rib (23), and the rib (23) is directed toward the front side of the box body (30). The outer surface of one side is flush with the end face of the opening of the wiring groove and is in contact with the inner surface of the box cover (40). The outer surface of the retaining rib (23) close to the wiring opening (31) is in contact with the inner wall of the box body (30) or forms a clearance fit. The retaining rib (23), the boss (22) and the wiring structure (21) are an integrated structure, and the vertical projection formed by the three on the inner wall of the box body (30) can completely cover the wiring opening (31). The bracket (20), the box body (30) and the box cover (40) are all made of flame-retardant materials.

7. The air conditioner electric control box according to claim 6, characterized in that: The upper end notch position of the vertical section of the wiring trough and the outer end notch position of the inclined section of the wiring trough are both provided with a chamfered corner structure (24); the lower end surface of the retaining rib (23) is provided with a chamfered corner structure (24) at the end facing the box cover (40); and the corner positions of the inner wall of the wiring trough are all provided with a chamfered corner structure (24).

8. The air conditioner electric control box according to any one of claims 1 to 7, characterized in that: A plurality of wire-holding limiters (25) are fixedly provided on the bracket (20), and the wire-holding limiters (25) and the corresponding inner side walls of the box body (30) jointly define a wiring channel, wherein at least one wire-holding limiter (25) is provided directly below the wiring structure (21), and at least one wire-holding limiter (25) is provided at the top side of the box body (30); the wire-holding limiter (25) is an elastic buckle structure, and the wire-holding limiter (25) includes a buckle connecting plate and a hook, one end of the buckle connecting plate is fixedly connected to the bracket (20), and the hook is provided at the end of the buckle connecting plate away from the bracket (20), and the hook is located on the side of the buckle connecting plate facing the wiring channel.

9. The air conditioner electric control box according to claim 8, characterized in that: At least one wire-holding stopper (25) is arranged at the bottom side of the box body (30); and a wire routing opening (31) is respectively provided on the left side wall and the right side wall of the box body (30).

10. The air conditioner electric control box according to claim 8, characterized in that: The buckle connecting plate is horizontally extended along the front-back direction of the box body (30); the wiring structure (21) has a first wiring inner cavity matching the inner straight section (52) of the wire, the inner surface of the upper end of the first wiring inner cavity close to the center of the box body (30) inner cavity is set as a first reference surface (26), the wire clamping limiter (25) arranged at a position directly below the wiring structure (21) is set as a first buckle, and the outer surface of the buckle connecting plate of the first buckle facing the wiring channel is set as a second reference surface (27), and in the horizontal direction corresponding to the left and right directions of the box body (30), the second reference surface (27) is closer to the wiring opening (31) of the side wall of the box body (30) than the first reference surface (26).

Images