Control box of air conditioning equipment and air conditioning equipment

By designing a semi-enclosed metal shell structure and a non-metal cavity structure, combined with a flange structure, the problem of air conditioning equipment control box cannot take into account waterproof, fireproof, heat dissipation and lightweight, achieving higher performance and longer service life.

CN222993122UActive Publication Date: 2025-06-17QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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Patent Information

Application Number
CN202421390677.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-06-17
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

The control box of existing air-conditioning equipment cannot take into account both waterproof, fireproof, heat dissipation and lightweight problems.

Method used

A control box for air conditioning equipment is designed, adopting a semi-enclosed metal shell structure, combining a non-metal mount and an inner shell to form a cavity structure to improve insulation and waterproofness, and a flange structure is provided on the edge of the top cover to enhance waterproof performance.

Benefits of technology

The fire protection requirements of the control box in key parts, structural strength requirements and structural lightweight requirements are realized, and the waterproof, fireproof and heat dissipation performance are improved, which extends the service life and improves the safety of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air-conditioning equipment, particularly provides a control box of air-conditioning equipment and the air-conditioning equipment, and aims to solve the problem that the control box of the existing air-conditioning equipment cannot simultaneously give consideration to water resistance, fire resistance, heat dissipation and light weight. In order to achieve the purpose, the control box comprises a mounting seat, and the mounting seat comprises a base and a back plate; the inner shell comprises a front panel, a first side plate, a second side plate and a top plate, the inner shell and the mounting base are buckled to jointly define a cavity structure, and the cavity structure can contain an electric control element; the outer shell comprises a bottom shell and a top cover which are fixedly connected, the bottom shell covers the side portion of the inner shell and is fixedly connected with the inner shell and / or the mounting base, the top cover covers the top of the inner shell and is fixedly connected with the inner shell and / or the mounting base, a flanging structure extending outwards is arranged on the edge of the top cover, and the flanging structure inclines downwards; the water flow at the top is shielded and guided; wherein the mounting seat and the inner shell are made of non-metal materials, and the outer shell is made of metal materials.
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Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning equipment, and particularly provides a control box for an air conditioning equipment and the air conditioning equipment. Background Art

[0002] With the continuous development of technology and the continuous improvement of user requirements, the functions and uses of air conditioning equipment are also developing towards diversification and personalization. The realization of various functions is inseparable from the control module of the air conditioning equipment. The control module is usually installed in the outdoor unit of the air conditioning equipment and is composed of electronic control components such as a control chip, a circuit board, and wires. Since the outdoor units of air conditioning equipment are all in the outdoor environment, especially the working environment of the outdoor unit of a vehicle-mounted air conditioner is more severe, and it often needs to withstand high temperatures and the invasion of rain and snow. Therefore, the control system is usually installed in a control box inside the outdoor unit to ensure its stable working environment. In addition, air conditioning equipment also pays more and more attention to the lightweight design of the structure.

[0003] However, the control boxes of existing air conditioning equipment cannot simultaneously take into account the problems of waterproofing, fireproofing, heat dissipation, and lightweight.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model

[0005] The utility model aims to solve the above technical problems, that is, to solve the problem that the control boxes of existing air conditioning equipment cannot simultaneously take into account the problems of waterproofing, fireproofing, heat dissipation, and lightweight.

[0006] In a first aspect, the utility model provides a control box for an air conditioning equipment, and the control box includes: a mounting seat, the mounting seat includes a base and a back plate; an inner shell, the inner shell includes a front panel, a first side plate, a second side plate, and a top plate, the inner shell and the mounting seat are snapped together to form a cavity structure, and the cavity structure can accommodate electronic control components; an outer shell, the outer shell includes a bottom shell and a top cover fixedly connected, the bottom shell covers the side of the inner shell and is fixedly connected to the inner shell and / or the mounting seat, the top cover covers the top of the inner shell and is fixedly connected to the inner shell and / or the mounting seat, and a flanging structure extending outward is provided at the edge of the top cover, and the flanging structure inclines downward to block and guide the water flow at the top; wherein, the mounting seat and the inner shell are made of non-metallic materials, and the outer shell is made of metallic materials.

[0007] In a preferred technical solution of the above control box, a water blocking structure is provided at the edge of the inner shell close to the back plate side, and the water blocking structure is stuck outside the back plate to fix and seal the back plate.

[0008] In the preferred technical solution of the above control box, the water blocking structure includes a water blocking inner plate and a water blocking outer plate arranged at intervals, and a water guide groove is formed between the water blocking inner plate and the water blocking outer plate.

[0009] In the preferred technical solution of the above control box, a horizontal guide groove is provided on the top plate, a first vertical guide groove is provided on the first side plate, a second vertical guide groove is provided on the second side plate, and both ends of the horizontal guide groove are respectively communicated with the first vertical guide groove and the second vertical guide groove; and / or a third vertical guide groove is provided on the front panel.

[0010] In the preferred technical solution of the above control box, a first wire harness through hole is further provided on the inner shell, a water blocking strip extending outward is provided on the edge of the first wire harness through hole, the water blocking strip inclines downward, and a second wire harness through hole is provided at a position on the outer shell corresponding to the first wire harness through hole, and the second wire harness through hole is stuck on the water blocking strip.

[0011] In the preferred technical solution of the above control box, heat dissipation plate mounting holes are provided on the back panel, and the control box further includes a sealing strip arranged along the edge of the heat dissipation plate mounting holes.

[0012] In the preferred technical solution of the above control box, the top cover, the top plate and the back panel are fixed by screwing, a convex portion protruding outward from the back panel is provided at the top of the back panel, the threaded hole is provided on the convex portion, and a first through hole and a second through hole are respectively provided at positions on the top plate and the top cover corresponding to the threaded hole; and / or first limiting structures, second limiting structures and third limiting structures are respectively provided at corresponding positions on the top cover, the bottom shell and the top plate.

[0013] In the preferred technical solution of the above control box, the top edge of the top cover and the bottom shell is fixed by welding; and / or the inner shell is fixed by snap connection with the mounting seat; and / or the outer shell is fixed by snap connection with the inner shell.

[0014] In the preferred technical solution of the above control box, heat dissipation holes are further provided on the front panel, and / or a ground wire connection structure is further provided on the outer shell.

[0015] In a second aspect, the present utility model provides an air conditioning device, and the air conditioning device includes the above control box.

[0016] In the case of adopting the above technical solution, the control box of the present utility model includes: a mounting base, which includes a base and a back plate; an inner shell, which includes a front panel, a first side plate, a second side plate and a top plate. The inner shell is buckled with the mounting base to jointly form a cavity structure, and the cavity structure can accommodate the electric control components; an outer shell, which includes a bottom shell and a top cover fixedly connected. The bottom shell covers the side of the inner shell and is fixedly connected to the inner shell and / or the mounting base. The top cover covers the top of the inner shell and is fixedly connected to the inner shell and / or the mounting base. The edge of the top cover is provided with a flanging structure extending outwards, and the flanging structure is inclined downwards to block and guide the water flow at the top; wherein, the mounting base and the inner shell are made of non-metallic materials, and the outer shell is made of metallic materials. Through such a setting, on the one hand, the semi-closed metal outer shell structure can meet the requirements of fire prevention, structural strength and structural light weight of the control box at key parts at the same time; on the other hand, the separate setting of the top cover and the bottom shell reduces the processing difficulty of the metal outer shell, and the flanging structure is provided at the edge of the top cover to enhance the waterproof performance of the top cover; on the third hand, the cavity structure formed by the inner shell and the base ensures the insulation of the control box and further strengthens the waterproof performance.

[0017] Further, a water blocking structure is provided at the edge of the inner shell close to the back plate side. The water blocking structure is stuck on the outside of the back plate to fix and seal the back plate. Through such a setting, on the one hand, it prevents the water flow from seeping into the control box from the joint of the back plate and the inner shell; on the other hand, it can limit the back plate inside the water blocking structure, play a role in positioning the back plate, and make the connection between the inner shell and the mounting base more stable.

[0018] Still further, the water blocking structure of the present utility model includes a water blocking inner plate and a water blocking outer plate arranged at intervals, and a water guiding groove is formed between the water blocking inner plate and the water blocking outer plate. Through such a setting, the water blocking inner plate and the water blocking outer plate form two layers of protection, which can block the water flow twice. The water guiding groove can guide the water flow that crosses the water blocking outer plate downward, relieve the attack of the water flow on the water blocking inner plate, and further improve the water blocking effect.

[0019] Still further, a horizontal guiding groove is provided on the top plate of the present utility model, a first vertical guiding groove is provided on the first side plate, and a second vertical guiding groove is provided on the second side plate. The two ends of the horizontal guiding groove are respectively communicated with the first vertical guiding groove and the second vertical guiding groove; and / or a third vertical guiding groove is provided on the front panel. Through such a setting, on the one hand, it can guide the water flow that enters the outer shell and falls on the surface of the inner shell downward, realize the timely discharge of the water flow, prevent the water flow from gathering between the inner shell and the outer shell, and reduce the risk of the water flow further invading the inner shell; on the other hand, the groove structure plays the role of a reinforcing rib on each surface, improving the strength and anti-deformation performance of the inner shell.

[0020] Furthermore, a first wire harness through-hole is provided on the inner shell of the present utility model, and a water-blocking strip extending outward is provided at the edge of the first wire harness through-hole. The water-blocking strip inclines downward. A second wire harness through-hole is provided at a position on the outer shell corresponding to the first wire harness through-hole, and the second wire harness through-hole is stuck on the water-blocking strip. Through such a setting, while ensuring the reasonable arrangement of the wire harness, it can prevent water flow from entering the control box through the wire harness through-hole, improving the waterproof performance of the control box.

[0021] Furthermore, heat dissipation plate mounting holes are provided on the back plate of the present utility model, and the control box further includes a sealing strip arranged along the edge of the heat dissipation plate mounting holes. Through such a setting, the gap between the heat dissipation plate and the back plate can be sealed to prevent water flow from invading.

[0022] Furthermore, the top cover, the top plate and the back plate of the present utility model are fixed by screwing. A convex portion protruding outward from the back plate is provided at the top of the back plate, and threaded holes are provided on the convex portion. First through-holes and second through-holes are respectively provided at positions on the top plate and the top cover corresponding to the threaded holes; and / or first limiting structures, second limiting structures and third limiting structures are respectively provided at corresponding positions on the top cover, the bottom shell and the top plate. Through such a setting, on the one hand, setting the threaded holes on the outer side of the back plate can prevent water flow from seeping into the control box through the threaded holes; on the other hand, the first limiting structure, the second limiting structure and the third limiting structure can limit the relative movement between the top cover, the bottom shell and the top plate, and also have a positioning function during the assembly process, which helps the stability of the top cover and the bottom shell during welding and improves the welding quality.

[0023] Furthermore, the top edge of the top cover and the bottom shell of the present utility model are fixed by welding; and / or the inner shell is fixed to the mounting seat by snap connection; and / or the outer shell is fixed to the inner shell by snap connection. Through such a setting, the overall strength of the control box and the flexibility of assembly are improved.

[0024] Furthermore, heat dissipation holes are also provided on the front panel of the present utility model, and / or a grounding wire connection structure is also provided on the outer shell. Through such a setting, on the one hand, the heat dissipation performance of the control box is further improved; on the other hand, the metal outer shell is grounded to avoid electric leakage of the electric control components and improve the use safety.

[0025] In addition, the air-conditioning equipment further provided by the present utility model based on the above control box has the technical effects possessed by the above control box due to adopting the above control box. Compared with the air-conditioning equipment before improvement, the control system of the air-conditioning equipment of the present utility model works more quickly and stably, is not easily damaged, prolongs the service life and improves the use safety. Description of the Drawings

[0026] The following describes the preferred embodiments of the present utility model in conjunction with the drawings, in which:

[0027] Figure 1 It is a schematic structural diagram of the control box of the present utility model;

[0028] Figure 2 It is a schematic structural diagram of the outer shell of the present utility model;

[0029] Figure 3 It is an assembly schematic diagram of the inner shell and the base of the present utility model Figure 1 ;

[0030] Figure 4 It is an assembly schematic diagram of the inner shell and the base of the present utility model Figure 2 ;

[0031] Figure 5 It is an assembly schematic diagram of the inner shell and the base of the present utility model Figure 3

[0032] Figure 6 It is a schematic structural diagram of the base of the present utility model;

[0033] Figure 7 is Figure 5 a partial enlarged view in

[0034] List of reference numerals:

[0035] 1. Mounting seat; 11. Base; 12. Back panel; 121. Heat dissipation plate mounting hole; 122. Protrusion; 123. Threaded hole; 2. Inner shell; 21. First side plate; 211. First vertical guide groove; 212. First wire harness through hole; 213. Water blocking strip; 22. Second side plate; 221. Second vertical guide groove; 23. Front panel; 231. Third vertical guide groove; 232. Heat dissipation hole; 24. Top plate; 241. Horizontal guide groove; 25. Water blocking outer plate; 26. Water blocking inner plate; 3. Outer shell; 31. Bottom shell; 311. Second wire harness through hole; 32. Top cover; 321. Flanging structure; 41. First limiting structure; 42. Second limiting structure; 43. Third limiting structure; 5. Sealing strip; 6. Heat dissipation plate. Specific embodiments

[0036] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0037] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "inner", "outer", "upper", "lower", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "connected", "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] Based on the problems pointed out in the background technology that the control box of the existing air conditioning equipment cannot take into account waterproof, fireproof, heat dissipation and lightweight at the same time. The present utility model provides a control box for an air conditioning equipment and an air conditioning equipment. By arranging a base and a plastic inner shell in the outdoor unit of the air conditioner to form a cavity structure for accommodating the electric control components, and arranging a semi-open metal shell outside the plastic inner shell so that it can cover the side where the electric control components are installed, it not only plays a role in fire prevention but also can minimize the weight of the shell. The metal shell includes a top cover and a bottom shell fixedly connected. A downwardly inclined flanging structure is arranged at the edge of the top cover. The flanging structure can block and guide the water flow at the top, thereby improving the waterproof, fireproof and heat dissipation performance of the control box, and at the same time realizing the lightweight of the control box.

[0040] Specifically, as Figures 1 to 6 shown, the control box of the present utility model includes: a mounting seat 1, and the mounting seat 1 includes a base 11 and a back plate 12; an inner shell 2, and the inner shell 2 includes a front panel 23, a first side plate 21, a second side plate 22 and a top plate 24. The inner shell 2 and the mounting seat 1 are snapped together to jointly form a cavity structure, and the cavity structure can accommodate the electric control components; an outer shell 3, and the outer shell 3 includes a bottom shell 31 and a top cover 32 fixedly connected. The bottom shell 31 covers the side of the inner shell 2 and is fixedly connected to the inner shell 2 and / or the mounting seat 1. The top cover 32 covers the top of the inner shell 2 and is fixedly connected to the inner shell 2 and / or the mounting seat 1. An outwardly extending flanging structure 321 is arranged at the edge of the top cover 32, and the flanging structure 321 inclines downward to block and guide the water flow at the top; wherein, the mounting seat 1 and the inner shell 2 are made of non-metallic materials, and the outer shell 3 is made of metal materials.

[0041] Exemplarily, the control box is installed inside the outdoor unit of the air conditioner equipment, and can play a role in protecting and sealing the internal electronic control components such as the controller. The electronic control components can control various execution components of the air conditioner equipment to achieve various operating modes of the air conditioner equipment. The outdoor unit of the air conditioner can be a fixed outdoor unit installed on a building or a vehicle-mounted air conditioner outdoor unit installed on a vehicle. Since the electronic control components have relatively strict requirements for the working environment, extreme environments such as high temperature and high humidity will affect the normal operation of the electronic control components, and even cause damage to the electronic control components, affecting the stability and service life of the electronic control components. At the same time, the electronic control components also have the characteristic of being prone to heat generation during operation. In addition, the lightweight of the equipment is also an issue that must be considered during the design process. For the above reasons, the control box of the present utility model needs to have good waterproof, fireproof, insulation and ventilation performance, and at the same time, it must also take into account the goal of equipment lightweight.

[0042] Specifically, the base 11 of the mounting seat 1 is horizontally fixed at the bottom of the outdoor unit, and the back plate 12 extends vertically upward from one side edge of the base 11, and the two are integrally formed by injection molding material. Similarly, the inner shell 2 is also integrally formed by injection molding material. Its front panel 23 is arranged opposite to the back plate 12, the first side plate 21 is arranged opposite to the second side plate 22, and the top plate 24 is arranged opposite to the base 11, so as to form a complementary structure with the base 11. The two are detachably snap-connected to form a cavity structure capable of accommodating electronic control components, which can play a role in sealing and insulation, can prevent the entry of external water flow, and can also achieve insulation between the electronic control components and the outside.

[0043] The bottom shell 31 and the top cover 32 of the outer shell 3 are fixedly connected, preferably by spot welding. The outer shell 3 has a semi-open structure. After assembly, the bottom shell 31 covers the side part of the inner shell 2, and the top cover 32 covers the top plate 24, so that the base 11 and the back plate 12 are exposed. Electronic control components such as the controller and the circuit board are all installed on the side close to the front panel 23. The metal outer shell 3 covers the side close to the installed electronic control components, which can timely block the fire of the electronic control components and increase the overall strength of the control box. At the same time, compared with the fully enclosed metal outer shell 3, the semi-open outer shell 3 in this scheme realizes a significant reduction in weight. The flanging structure 321 provided at the edge of the top cover 32 is similar to the water retaining edge of a roof. The flanging structure 321 extends outward along the connection line between the top cover 32 and the bottom shell 31 and slopes downward at a certain angle. The flanging structure 321 can be processed into an inclined surface structure or a circular arc surface structure. In this way, it can cover the weld between the top cover 32 and the bottom shell 31, prevent the top water flow from seeping into the outer shell 3 through the weld, and can also guide the top water flow downward to prevent the water flow from accumulating on the top cover 32 or flowing downward along the side wall of the control box, realizing the timely drainage of the water flow.

[0044] In summary, on the one hand, the semi-closed metal housing 3 structure can simultaneously meet the fire prevention requirements, structural strength requirements, and structural lightweight requirements of the control box at key parts; on the other hand, the separate setting of the top cover 32 and the bottom shell 31 reduces the processing difficulty of the metal housing 3, and the flanging structure 321 provided at the edge of the top cover 32 can enhance the waterproof performance of the top cover 32; on the other hand, the cavity structure formed by enclosing the inner shell 2 and the base 11 ensures the insulation of the control box and further strengthens the waterproof performance.

[0045] Preferably, as Figure 5 and Figure 7 shown, a water-blocking structure is provided at the edge of the inner shell 2 of the present utility model near the back plate 12, and the water-blocking structure is stuck on the outside of the back plate 12 to fix and seal the back plate 12.

[0046] Exemplarily, the water-blocking structure can be set as a water-blocking plate or a water-blocking strip 213 extending along the edge of the inner shell 2. After assembly, the back plate 12 can be stuck inside the water-blocking structure. On the one hand, it can block the joint between the back plate 12 and the inner shell 2 to prevent water from seeping into the control box through the joint; on the other hand, it can limit the back plate 12 inside the water-blocking structure, play a limiting role on the back plate 12, and make the connection between the inner shell 2 and the mounting seat 1 more stable.

[0047] Preferably, as Figure 5 and Figure 7 shown, the water-blocking structure of the present utility model includes a spaced water-blocking inner plate 26 and a water-blocking outer plate 25, and a water guide groove is formed between the water-blocking inner plate 26 and the water-blocking outer plate 25.

[0048] The water-blocking inner plate 26 and the water-blocking outer plate 25 extend parallel to the edge of the inner shell 2, thus forming two layers of protection, which can block water flow twice. When the water flow is large, the water guide groove can guide the water flow that has passed over the water-blocking outer plate 25 downward, relieve the attack of the water flow on the water-blocking inner plate 26, and further improve the water-blocking effect.

[0049] Preferably, as Figure 3 and Figure 4 shown, a horizontal guide groove 241 is provided on the top plate 24 of the present utility model, a first vertical guide groove 211 is provided on the first side plate 21, a second vertical guide groove 221 is provided on the second side plate 22, and both ends of the horizontal guide groove 241 are respectively communicated with the first vertical guide groove 211 and the second vertical guide groove 221; and / or a third vertical guide groove 231 is provided on the front panel 23.

[0050] Exemplarily, the guide grooves are all formed by downward depressions on the surface of the inner shell 2. By providing a groove structure on each surface of the inner shell 2, on the one hand, the water flow that enters the outer shell 3 and falls on the surface of the inner shell 2 can be guided downward, realizing the timely discharge of the water flow, preventing the water flow from accumulating between the inner shell 2 and the outer shell 3, and reducing the risk of the water flow further invading the inner shell 2; on the other hand, the groove structure acts as a reinforcing rib on each surface, enhancing the strength and anti-deformation performance of the inner shell 2.

[0051] It should be noted that in practical applications, those skilled in the art can arbitrarily set the distribution and direction of the guide grooves, as long as they can have good enough water guiding performance. Such flexible adjustment and change do not deviate from the principle and scope of the present utility model and should be limited within the protection scope of the present utility model.

[0052] Preferably, as Figures 1 to 5 shown, a first wire harness through hole 212 is further provided on the inner shell 2 of the present utility model. A water blocking strip 213 extending outward is provided at the edge of the first wire harness through hole 212. The water blocking strip 213 inclines downward. A second wire harness through hole 311 is provided at the position corresponding to the first wire harness through hole 212 on the outer shell 3. The second wire harness through hole 311 is stuck on the water blocking strip 213.

[0053] Exemplarily, the first wire harness through hole 212 is formed on the first side plate 21. The water blocking strip 213 extends from above the first wire harness through hole 212 along the edge to the bottom of the first side plate 21, protruding outward from the side plate of the outer shell 3 after assembly. Thus, when the water flow flows downward along the side plate of the outer shell 3, it can block the water flow and at the same time guide the water flow downward along the edge of the first wire harness through hole 212, thereby preventing the water flow from entering the interior of the control box through the first wire harness through hole 212 and the second wire harness through hole 311. While ensuring the reasonable arrangement of the wire harness, the waterproof performance of the control box is further improved.

[0054] Preferably, as Figures 4 to 6 shown, a heat dissipation plate 6 mounting hole 121 is provided on the back plate 12 of the present utility model. The control box further includes a sealing strip 5 provided along the edge of the heat dissipation plate 6 mounting hole 121.

[0055] Specifically, the heat dissipation plate 6 is installed in the heat dissipation plate 6 mounting hole 121. The sealing strip 5 extends along the edge of the heat dissipation plate 6 and is preferably set as a sealing rubber strip, which can be hermetically attached to the edge of the heat dissipation plate 6 and the heat dissipation plate 6 mounting hole 121 respectively to seal the gap between the heat dissipation plate 6 and the back plate 12 and prevent the water flow from invading.

[0056] Preferably, as Figures 1 to 7As shown in the figure, the top cover 32, the top plate 24 and the back plate 12 of the present utility model are fixedly connected by screwing. A convex portion 122 protruding outward from the back plate 12 is provided at the top of the back plate 12, and a threaded hole 123 is provided on the convex portion 122. A first through hole and a second through hole are respectively provided at positions corresponding to the threaded hole 123 on the top plate 24 and the top cover 32; and / or first limiting structures 41, second limiting structures 42 and third limiting structures 43 are respectively provided at corresponding positions on the top cover 32, the bottom case 31 and the top plate 24.

[0057] Thus, the threaded hole 123 is entirely located outside the back plate 12, which can effectively prevent water from seeping into the control box through the threaded hole 123; the first limiting structure 41, the second limiting structure 42 and the third limiting structure 43 all recess from the upper surface to the lower surface, thereby forming a pit structure on the upper surface and a convex structure on the lower surface, so that the convex of the top cover 32 is locked in position with the pit on the bottom case 31, and the convex on the bottom case 31 is locked in position with the pit on the top plate 24, thereby restricting the relative movement in the horizontal direction between the top cover 32, the bottom case 31 and the top plate 24. At the same time, it also has a positioning function during the assembly process, which helps to improve the stability of the top cover 32 and the bottom case 31 during welding and improves the welding quality.

[0058] Preferably, as Figures 1 to 5 shown, the top edge of the top cover 32 and the bottom case 31 of the present utility model are fixedly connected by welding; and / or the inner case 2 is snap-fitted with the mounting seat 1; and / or the outer case 3 is snap-fitted with the inner case 2.

[0059] It should be noted that, in addition to the above preferred solutions, in practical applications, the connection form between any two of them is not specifically limited and can be flexibly set according to needs, as long as it can improve the overall strength of the control box and the flexibility of assembly.

[0060] Preferably, as Figure 3 shown, heat dissipation holes 232 are further provided on the front panel 23 of the present utility model, and / or a ground wire connection structure is further provided on the outer case 3.

[0061] Exemplarily, the electric control components are located on one side close to the front panel 23 and generate a large amount of heat. The heat dissipation holes 232 enable the heat generated inside to be discharged in time through the metal outer case 3, further improving the heat dissipation performance of the control box; in addition, connection holes are further provided at the edge of the top cover 32 for connecting the ground wire to ground the metal outer case 3, avoiding the outer case 3 being electrified due to the leakage of the electric control components and improving the use safety.

[0062] In addition, the air conditioning equipment further provided by the present utility model on the basis of the above control box adopts the above control box, and thus has the technical effects possessed by the above control box. Compared with the air conditioning equipment before improvement, the control system of the air conditioning equipment of the present utility model works more quickly and stably, is not easily damaged, extends the service life, and improves the use safety.

[0063] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present utility model.

Claims

1. A control box for air conditioning equipment, characterized in that: The control box comprises: A mounting base, the mounting base comprising a base and a back plate; An inner shell, the inner shell comprising a front panel, a first side panel, a second side panel and a top panel, the inner shell and the mounting seat are buckled together to form a cavity structure, and the cavity structure can accommodate an electric control component; An outer shell, the outer shell comprising a bottom shell and a top cover which are fixedly connected, the bottom shell cover being arranged at the side of the inner shell and being fixedly connected to the inner shell and / or the mounting seat, the top cover covering the top of the inner shell and being fixedly connected to the inner shell and / or the mounting seat, the edge of the top cover being provided with a flange structure extending outward, the flange structure being inclined downward to shield and guide the water flow at the top; Wherein, the mounting seat and the inner shell are set to non-metallic material, and the outer shell is set to metal material.

2. The control box according to claim 1, characterized in that: A water retaining structure is arranged at an edge of the inner shell close to one side of the back plate, and the water retaining structure is clamped on the outer side of the back plate to fix and seal the back plate.

3. The control box according to claim 2, characterized in that: The water retaining structure comprises an inner water retaining plate and an outer water retaining plate which are arranged at intervals, and a water guide groove is formed between the inner water retaining plate and the outer water retaining plate.

4. The control box according to claim 1, characterized in that: A horizontal guide groove is arranged on the top plate, a first vertical guide groove is arranged on the first side plate, a second vertical guide groove is arranged on the second side plate, two ends of the horizontal guide groove are respectively connected with the first vertical guide groove and the second vertical guide groove; and / or a third vertical guide groove is arranged on the front plate.

5. The control box according to claim 1, characterized in that: The inner shell is also provided with a first wiring harness through hole, and the edge of the first wiring harness through hole is also provided with a water retaining strip extending outward, and the water retaining strip is inclined downward. A second wiring harness through hole is provided at a position corresponding to the first wiring harness through hole on the outer shell, and the second wiring harness through hole is clamped on the water retaining strip.

6. The control box according to claim 1, characterized in that: The back plate is provided with a heat sink mounting hole, and the control box further comprises a sealing strip arranged along the edge of the heat sink mounting hole.

7. The control box according to claim 1, characterized in that: The top cover, the top plate and the back plate are screwed and fixed, a protrusion protruding toward the outside of the back plate is provided on the top of the back plate, a threaded hole is provided on the protrusion, and a first through hole and a second through hole are provided at positions of the top plate and the top cover corresponding to the threaded hole, respectively; and / or a first limiting structure, a second limiting structure and a third limiting structure are provided at corresponding positions of the top cover, the bottom shell and the top plate, respectively.

8. The control box according to claim 1 or 7, characterized in that: The top cover is fixed to the top edge of the bottom shell by welding; and / or the inner shell is fixed to the mounting seat by snap-fitting; and / or the outer shell is fixed to the inner shell by snap-fitting.

9. The control box according to claim 1, characterized in that: The front panel is also provided with heat dissipation holes, and / or the housing is also provided with a grounding wire connection structure.

10. An air conditioning device, characterized in that: The air conditioning device comprises the control box according to any one of claims 1 to 9.