Power supply box sealing structure and air conditioner

Abstract

The utility model relates to a power supply box sealing structure and an air conditioner, the power supply box comprises a power supply box body and a power supply box cover, the power supply box body is of a box body structure with an opening at the upper end, the edge of the upper end of the power supply box cover is provided with a U-shaped groove with an upward opening, the periphery of the power supply box cover is provided with a breast board which extends downwards, and the breast board is provided with a sealing cover. The power source cover plate is detachably installed on the power source box body, the bottom face of the power source cover plate abuts against the upper end face of the side, close to the interior of the power source box body, of the U-shaped groove in a sealed mode, the breast board is inserted into the U-shaped groove in a matched mode, and the bottom face of the breast board abuts against the groove bottom face of the U-shaped groove in a sealed mode. According to the sealing structure of the power supply box, external air is difficult to enter the power supply box, and the sealing effect of the power supply box is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to a power supply box sealing structure and an air conditioner. Background Technology

[0002] Power supply units for electrical equipment such as air conditioners generally require a power box and a power box cover. The power box and the power box cover are usually connected and fixed by screws. The mating surface between the power box and the power box cover has an L-shaped profile, which makes it easy for external gas to enter the power box and results in poor sealing. Utility Model Content

[0003] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a power box sealing structure and an air conditioner. According to the power box sealing structure and air conditioner of the present utility model embodiment, it is difficult for external gas to enter the power box, effectively improving the sealing effect of the power box.

[0004] To achieve the above objectives, a first aspect of this utility model provides a power box sealing structure. The power box includes a power box body and a power box cover. The power box body is a box structure with an open top. The upper edge of the power box cover is provided with an upward-facing U-shaped groove. The periphery of the power box cover is provided with a downward-extending guardrail. The power box cover is detachably installed on the power box body, and the bottom surface of the power box cover seals against the upper surface of the side of the U-shaped groove near the interior of the power box body. The guardrail is inserted into the U-shaped groove, and the bottom surface of the guardrail seals against the bottom surface of the U-shaped groove.

[0005] Therefore, according to the power box sealing structure of this utility model embodiment, a U-shaped sealing structure is designed between the power box body and the power box cover for installation. The bottom surface of the power box cover is sealed against the upper end surface of the side of the U-shaped groove near the inside of the power box body, and the bottom surface of the side panel is sealed against the bottom surface of the U-shaped groove. This creates two zero-gap sealing surfaces between the power box body and the power box cover, which effectively improves the overall sealing performance of the power box. When the power box is used in an air conditioner, it ensures that gaseous refrigerant is unlikely to enter the power box in the event of a gaseous refrigerant leak, greatly improving the safety performance of the power box.

[0006] In one embodiment, the bottom two sides of the guardrail are C-angle or R-angle structures, and the top two sides of the U-shaped groove are also C-angle or R-angle structures. Therefore, by designing the top sides of the guardrail and the U-shaped groove as C-angle or R-angle structures, this embodiment of the invention can guide the installation of the guardrail and the U-shaped groove, facilitating the insertion of the guardrail into the U-shaped groove.

[0007] In one embodiment, the ground surface of the power box cover is provided with a first contact surface, and the upper surface of the U-shaped groove near the interior of the power box is provided with a second contact surface, and the first contact surface and the second contact surface are fitted together.

[0008] In one embodiment, the bottom of the panel is provided with a third contact surface, and the bottom of the U-shaped groove is provided with a fourth contact surface, with the third contact surface and the fourth contact surface fitting together.

[0009] In one implementation, the two outer sides of the panel are respectively fitted with the two inner sides of the U-shaped groove with a clearance.

[0010] In one embodiment, the gap between the outer side of the guardrail and the inner side of the U-shaped groove is 0.3-0.5 mm.

[0011] In one embodiment, the projected height of the guard plate on the side parallel to the U-shaped groove and away from the power supply box is H, where H ≥ 3mm. Therefore, this embodiment of the invention improves the sealing effect of the power supply box by designing the overlap length between the U-shaped groove and the guard plate to be 3mm or more.

[0012] In one embodiment, a first stud with an opening at the top is provided on the outer side of the power supply box, and a second stud that is coaxially engaged with the first stud is provided on the power supply box cover. The second stud has a structure with openings at both ends, and the second stud is detachably fixed to the first stud by a screw.

[0013] In one embodiment, the U-shaped groove is arranged around the periphery of the power supply box, and the side panel is arranged around the periphery of the power supply box cover.

[0014] A second aspect of this utility model provides an air conditioner including the power supply box sealing structure described in any of the above embodiments. According to the air conditioner of this utility model embodiment, external gas is difficult to enter the power supply box, effectively improving the sealing effect of the power supply box and ensuring the safety performance of the air conditioner's power supply device.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of the power box sealing structure according to an embodiment of the present utility model;

[0017] Figure 2 This is a second schematic diagram of the power supply box sealing structure according to an embodiment of the present utility model;

[0018] Figure 3This is an exploded view of the sealing structure of the power supply box according to an embodiment of the present utility model;

[0019] Figure 4 This is the third schematic diagram of the power box sealing structure according to an embodiment of the present utility model;

[0020] Figure 5 for Figure 4 A schematic cross-sectional view along direction AA is shown.

[0021] Figure 6 for Figure 5 An enlarged schematic diagram of part A shown;

[0022] Figure 7 for Figure 4 A schematic cross-sectional view along the BB direction is shown.

[0023] Figure 8 for Figure 7 An enlarged schematic diagram of part B shown.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Power supply box body; 11. U-shaped groove; 12. First stud; 20. Power supply box cover; 21. Side panel; 22. Second stud. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0027] In related technologies, the power supply devices of electrical equipment such as air conditioners generally need to be equipped with a power box and a power box cover. The power box cover and the power box are usually connected and fixed by screws. Moreover, the mating surface between the power box and the power box cover is L-shaped, which makes it easy for external gas to enter the power box and the sealing effect is poor.

[0028] Therefore, this utility model provides a power supply box sealing structure and an air conditioner. According to the power supply box sealing structure and air conditioner of this utility model, it is difficult for external gas to enter the power supply box, effectively improving the sealing effect of the power supply box.

[0029] Please see Figures 1 to 8The first aspect of this utility model provides a power box sealing structure. The power box includes a power box body 10 and a power box cover 20. The power box body 10 is a box structure with an open top. The upper edge of the power box cover 20 is provided with an upward-facing U-shaped groove 11. The periphery of the power box cover 20 is provided with a downward-extending guardrail 21. The power cover is detachably installed on the power box body 10, and the bottom surface of the power cover seals against the upper surface of the side of the U-shaped groove 11 near the interior of the power box body 10. The guardrail 21 is inserted into the U-shaped groove 11, and the bottom surface of the guardrail 21 seals against the bottom surface of the U-shaped groove 11.

[0030] Specifically, in this embodiment of the present invention, the ground surface of the power box cover 20 is provided with a first contact surface, and the upper end surface of the U-shaped groove 11 near the interior of the power box body 10 is provided with a second contact surface, the first contact surface and the second contact surface being fitted together; the bottom of the guardrail 21 is provided with a third contact surface, and the bottom of the U-shaped groove 11 is provided with a fourth contact surface, the third contact surface and the fourth contact surface being fitted together. Furthermore, the U-shaped groove 11 is arranged around the periphery of the power box body 10, and the guardrail 21 is arranged around the periphery of the power box cover 20. It can be understood that the sealing fit between the power box body 10 and the power box cover 20 in this embodiment of the present invention is formed by the sealing connection between the guardrail 21 and the U-shaped groove 11.

[0031] Furthermore, in this embodiment of the invention, the power supply box 10 has a first stud 12 with an open top on its outer side, and the power supply box cover 20 has a second stud 22 that coaxially engages with the first stud 12. The second stud 22 has an open-end structure and is detachably fixed to the first stud 12 by screws. To ensure the stability of the power supply box 10 and the power supply box cover 20 after sealing, there can be two sets of first studs 12 and second studs 22. That is, the power supply box 10 has two first studs 12 spaced apart, and the power supply box cover 20 has two second studs 22. In this way, the power supply box 10 and the power supply box cover 20 can be firmly connected together by two screws.

[0032] Therefore, according to the power box sealing structure of this utility model embodiment, a U-shaped sealing structure is designed between the power box body 10 and the power box cover 20 for installation. The bottom surface of the power box cover 20 is sealed against the upper end surface of the side of the U-shaped groove 11 near the inside of the power box body 10, and the bottom surface of the guard plate 21 is sealed against the bottom surface of the U-shaped groove 11. This creates two zero-gap sealing surfaces between the power box body 10 and the power box cover 20, which effectively improves the sealing performance of the entire power box. When the power box is used in an air conditioner, it is difficult for gaseous refrigerant to enter the power box, greatly improving the safety performance of the power box.

[0033] Furthermore, in this embodiment of the invention, the two outer sides of the guardrail 21 and the two inner sides of the U-shaped groove 11 form a clearance fit. The gap between the outer sides of the guardrail 21 and the inner sides of the U-shaped groove 11 is 0.3-0.5 mm. Additionally, the bottom two sides of the guardrail 21 have C-angle or R-angle structures, and the top sides of the U-shaped groove 11 have C-angle or R-angle structures. Therefore, by designing the top sides of the guardrail 21 and the U-shaped groove 11 as C-angle or R-angle structures, this embodiment of the invention provides a guide for the installation of the guardrail 21 and the U-shaped groove 11, facilitating the insertion of the guardrail 21 into the U-shaped groove 11.

[0034] Furthermore, in this embodiment of the invention, the projected height of the guardrail 21 on the side parallel to the U-shaped groove 11 and away from the power supply box 10 is H, where H ≥ 3mm. Therefore, by designing the overlap length between the U-shaped groove 11 and the guardrail 21 to be 3mm or more, this embodiment of the invention can improve the sealing effect of the power supply box.

[0035] In other words, when this utility model embodiment is applied to an air conditioner, because the air conditioner uses flammable and explosive refrigerants such as R290, there is a risk that flammable gases may enter the power supply box. However, this utility model embodiment, through the coordinated sealing structure between the power supply box body 10 and the power supply box cover 20, provides the power supply box with excellent sealing performance, ensuring that even in the event of a refrigerant leak, gaseous refrigerant is unlikely to enter the interior of the power supply box, effectively guaranteeing the safety performance of the power supply box.

[0036] A second aspect of this utility model provides an air conditioner including the power supply box sealing structure described in any of the above embodiments. According to the air conditioner of this utility model embodiment, external gas is difficult to enter the power supply box, effectively improving the sealing effect of the power supply box and ensuring the safety performance of the air conditioner's power supply device.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this utility model.

[0038] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the power supply box sealing structure and the air conditioner of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A power supply box sealing structure, characterized in that: The power supply box includes a power supply box body and a power supply box cover. The power supply box body is a box structure with an opening at the top. The upper edge of the power supply box cover is provided with an upward-facing U-shaped groove. The periphery of the power supply box cover is provided with a downward-extending guardrail. The power supply cover is detachably installed on the power supply box body, and the bottom surface of the power supply cover is sealed against the upper surface of the side of the U-shaped groove near the interior of the power supply box body. The guardrail is inserted into the U-shaped groove, and the bottom surface of the guardrail is sealed against the bottom surface of the U-shaped groove.

2. The power supply box sealing structure according to claim 1, characterized in that: The bottom two sides of the panel are C-corner or R-corner structures, and the top of the two sides of the U-shaped groove are C-corner or R-corner structures.

3. The power supply box sealing structure according to claim 1, characterized in that: The power box cover has a first contact surface on the ground, and the upper surface of the U-shaped groove near the inside of the power box has a second contact surface. The first contact surface and the second contact surface are fitted together.

4. The power supply box sealing structure according to claim 1, characterized in that: The bottom of the panel is provided with a third contact surface, and the bottom of the U-shaped groove is provided with a fourth contact surface, with the third contact surface and the fourth contact surface fitting together.

5. The power supply box sealing structure according to claim 1, characterized in that: The two outer sides of the panel are respectively fitted with the two inner sides of the U-shaped groove.

6. The power supply box sealing structure according to claim 5, characterized in that: The gap between the outer side of the guardrail and the inner side of the U-shaped groove is 0.3-0.5 mm.

7. The power supply box sealing structure according to claim 1, characterized in that: The projected height of the panel on the side parallel to the U-shaped groove away from the power supply box is H, where H ≥ 3 mm.

8. The power supply box sealing structure according to claim 1, characterized in that: The power supply box has a first stud with an opening at the top on its outer side, and a second stud that is coaxially engaged with the first stud on the power supply box cover. The second stud has an opening at both ends and is detachably fixed to the first stud by a screw.

9. The power supply box sealing structure according to claim 1, characterized in that: The U-shaped groove is arranged around the periphery of the power supply box, and the panel is arranged around the periphery of the power supply box cover.

10. An air conditioner, characterized in that: Includes the power box sealing structure as described in any one of claims 1 to 9.

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