Air conditioner and electric appliance box thereof

Abstract

The utility model relates to the technical field of air conditioners, particularly provides an air conditioner and an electric appliance box thereof, and aims to solve the problem that the inner wall, close to an evaporator, of an electric appliance box of an existing air conditioner is prone to generating condensate water, and consequently electric appliance elements in the electric appliance box are short-circuited. In order to achieve the purpose, the air conditioner comprises a shell, a first heat exchanger serving as an evaporator in a refrigeration mode is arranged in the shell, an electric appliance box is installed in the shell and comprises a box body, and a heat insulation structure is arranged on a side plate, at least close to the first heat exchanger, of the box body. The heat insulation structure is arranged on the side plate, at least close to the first heat exchanger, of the electric appliance box, so that the situation that water vapor in air in the electric appliance box is condensed into small liquid drops when encountering a low-temperature inner wall due to the fact that the temperature of the inner wall of the electric appliance box is too low can be avoided; therefore, the small liquid drops are prevented from gathering together and flowing down along the inner wall of the electric appliance box to cause short circuit of the electric appliance elements in the electric appliance box, and the normal operation of the electric appliance elements in the electric appliance box is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and specifically provides an air conditioner and an electrical appliance box thereof. Background Art

[0002] Nowadays, air conditioners have become a common electrical appliance in people's lives. An evaporator is installed in the housing of the air conditioner, and an electrical box is also arranged near the evaporator in the housing, and various electrical components are installed in the electrical box.

[0003] During daily use, due to the influence of the evaporator, the temperature of the part of the electrical box near the evaporator is relatively low. The water vapor in the air in the electrical box is easily condensed into small droplets in the lower temperature part of the electrical box. The small droplets gather together and flow down along the inner wall of the electrical box, which can easily cause short circuits in the electrical components in the electrical box.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, namely, to solve the problem that condensed water is easily generated on the inner wall of the electrical box of the existing air conditioner close to the evaporator, which causes short circuit of the internal electrical components.

[0006] In a first aspect, the utility model provides an electrical box of an air conditioner, the air conditioner comprising a shell, a first heat exchanger serving as an evaporator in a cooling mode being arranged in the shell, the electrical box being installed in the shell, the electrical box comprising a box body, and a heat insulation structure being arranged on at least a side panel close to the first heat exchanger.

[0007] In the preferred technical solution of the above-mentioned electrical box, the thermal insulation structure is a thermal insulation pad.

[0008] In the preferred technical solution of the above-mentioned electrical box, a second heat exchanger serving as a condenser in cooling mode is arranged in the shell, the electrical box is installed between the first heat exchanger and the second heat exchanger, and the insulation structure is not arranged on the side panel of the box body close to the second heat exchanger.

[0009] In the preferred technical solution of the above-mentioned electrical appliance box, a wire-passing hole is provided on the box body, and an elastic protective structure is coated on the edge of the wire-passing hole.

[0010] In the preferred technical solution of the above-mentioned electrical box, the box body includes: a base body, the base body includes a first side panel, a second side panel, a third side panel and a bottom panel, the first side panel and the second side panel are parallel to each other, the third side panel is connected to or integrally formed with the same side edge of the first side panel and the second side panel, and the bottom panel is connected to or integrally formed with the lower edge of the third side panel; a cover body, the cover body includes a fourth side panel and a top panel, the upper edge of the fourth side panel is connected to or integrally formed with one side of the top panel, and the side edge of the fourth side panel is formed with a flange structure that cooperates with the first side panel and the second side panel; the base body and the cover body are buckled together to form the box body.

[0011] In the preferred technical solution of the above-mentioned electrical box, the wire hole includes a half hole formed on the first side panel and / or the second side panel, and the elastic protective structure includes an elastic strip covering the edge of the half hole and elastic stops formed near the two ends of the elastic strip.

[0012] In the preferred technical solution of the above-mentioned electrical appliance box, the edge of the flange structure away from the fourth side plate is configured as a curved surface structure.

[0013] In the preferred technical solution of the above-mentioned electrical box, the wire passing hole includes a through hole formed on the first side panel and / or the second side panel, and the elastic protective structure includes an elastic ring covering the edge of the through hole and a plurality of elastic melon-shaped structures evenly distributed on the inner edge of the elastic ring, and the plurality of elastic melon-shaped structures cover the central opening area of ​​the elastic ring in a natural state.

[0014] In the preferred technical solution of the above-mentioned electrical box, a positioning piece is formed at the bottom of the fourth side plate, a positioning hole is formed on the bottom plate, and the positioning piece is inserted into the positioning hole to realize the positioning of the fourth side plate and the bottom plate.

[0015] When adopting the above technical solution, the air conditioner includes a shell, in which a first heat exchanger serving as an evaporator in cooling mode is arranged, and an electrical box is installed in the shell. The electrical box includes a box body, and an insulation structure is arranged on at least a side panel close to the first heat exchanger.

[0016] By providing a heat insulating structure at least on the side panel of the electrical box close to the first heat exchanger, it is possible to avoid the situation where the temperature of the inner wall of the electrical box is too low, causing water vapor in the air in the electrical box to condense into small droplets upon encountering the low-temperature inner wall. This can further prevent the small droplets from gathering together and flowing down the inner wall of the electrical box, causing a short circuit in the electrical components in the electrical box, thereby ensuring the normal operation of the electrical components in the electrical box.

[0017] Preferably, the thermal insulation structure is a thermal insulation pad.

[0018] Such an arrangement facilitates the arrangement of the heat insulation structure, reduces the manufacturing difficulty, and reduces the manufacturing cost.

[0019] Preferably, a second heat exchanger serving as a condenser in cooling mode is provided in the shell, the electrical box is installed between the first heat exchanger and the second heat exchanger, and no heat insulation structure is provided on the side panel of the box body close to the second heat exchanger.

[0020] By such arrangement, the arrangement of the heat insulation structure can be reduced, and the heat dissipation of the electrical components in the electrical box can be facilitated. In addition, the overall structure of the air conditioner is made more compact and convenient to install.

[0021] Preferably, a wire-passing hole is provided on the box body, and an elastic protective structure is coated on the edge of the wire-passing hole.

[0022] Through such an arrangement, it is possible to avoid the insulation layer of the cable being cut by the edge of the wire hole to cause leakage, thereby improving safety.

[0023] Preferably, the box body includes: a base body, the base body includes a first side panel, a second side panel, a third side panel and a bottom panel, the first side panel and the second side panel are parallel to each other, the third side panel is connected to or integrally formed with the same side edges of the first side panel and the second side panel, and the bottom panel is connected to or integrally formed with the lower edge of the third side panel; a cover body, the cover body includes a fourth side panel and a top panel, the upper edge of the fourth side panel is connected to or integrally formed with one side of the top panel, and the side edge of the fourth side panel is formed with a flange structure that cooperates with the first side panel and the second side panel; the base body and the cover body are buckled together to form a box body.

[0024] This arrangement facilitates the manufacture of the box and the assembly and disassembly of the electrical components in the box.

[0025] Preferably, the wire hole comprises a half hole formed on the first side plate and / or the second side plate, and the elastic protective structure comprises an elastic strip wrapped around the edge of the half hole and elastic blocks formed near both ends of the elastic strip.

[0026] With such an arrangement, the cable does not need to be passed through the cable hole from the end, but only needs to be moved in from the gap of the half hole, which facilitates the installation of the cable.

[0027] Preferably, the edge of the flange structure away from the fourth side plate is configured as a curved surface structure.

[0028] Through such an arrangement, when the cover body and the base body are buckled together to form a box body, the flange structure can be prevented from cutting the insulation layer of the cable passing through the half hole, thereby reducing the risk of cable leakage.

[0029] Preferably, the wire hole includes a through hole formed on the first side plate and / or the second side plate, and the elastic protective structure includes an elastic ring covering the edge of the through hole and a plurality of elastic melon-shaped structures evenly distributed on the inner edge of the elastic ring, and the plurality of elastic melon-shaped structures cover the central opening area of ​​the elastic ring in a natural state.

[0030] Through such a setting, the edge of the wire hole can be prevented from cutting the insulation layer of the cable, and the gap between the edge of the wire hole and the cable can be reduced when the cable passes through the wire hole, thereby preventing mosquitoes from entering the electrical box through the wire hole.

[0031] Preferably, a positioning piece is formed at the bottom of the fourth side plate, a positioning hole is formed on the bottom plate, and the positioning piece is inserted into the positioning hole to achieve positioning of the fourth side plate and the bottom plate.

[0032] This arrangement facilitates the assembly of the base and the cover, and improves installation efficiency.

[0033] In a second aspect, the utility model further provides an air conditioner, comprising the electrical box described in any one of the above technical solutions.

[0034] It should be noted that the air conditioner has all the technical effects of the electrical box described in any of the above technical solutions, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0036] Figure 1 This is a schematic diagram of the structure of an air conditioner in one embodiment of the utility model. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the structure of an air conditioner in one embodiment of the utility model. Figure 2 (without the upper cover);

[0038] Figure 3 It is a structural schematic diagram of an electrical box of an air conditioner in one embodiment of the utility model;

[0039] Figure 4 This is an exploded view of an electrical box of an air conditioner according to an embodiment of the utility model;

[0040] Figure 5 yes Figure 4 A magnified view of the part A in the middle;

[0041] Figure 6 yes Figure 4 A magnified view of the part B in the middle;

[0042] Figure 7 yes Figure 4 Enlarged view of part C in the middle.

[0043] List of reference numerals:

[0044] 1. Shell; 11. Upper cover; 12. Base; 21. Partition; 22. Second heat exchanger; 23. Compressor; 24. Second fan; 3. Electrical box; 31. Base; 311. First side panel; 3111. First wire hole; 312. Second side panel; 3121. Second wire hole; 313. Third side panel; 314. Bottom panel; 3141. Positioning hole; 32. Cover; 321. Fourth side panel; 3211. First flange; 32111. Positioning sheet; 3212. Second flange; 322. Top panel; 3221. Third flange; 41. Capacitor; 42. Relay; 5. Gasket; 61. First elastic protective structure; 611. Elastic ring; 612. Elastic melon slice structure; 62. Second elastic protective structure; 621. Elastic strip; 622. Elastic stopper. DETAILED DESCRIPTION

[0045] First, those skilled in the art should understand that the embodiments described below are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0046] It should be noted that in the description of the utility model, the terms "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a direct connection, or an indirect connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Based on the problem mentioned in the background technology that condensation water is easily generated on the inner wall of the electrical box of the existing air conditioner near the evaporator, which may cause short circuit of the internal electrical components, the utility model provides an air conditioner and its electrical box, the air conditioner comprises a shell, a first heat exchanger serving as an evaporator in the cooling mode is arranged in the shell, the electrical box is installed in the shell, the electrical box comprises a box body, and the box body is provided with a heat insulation structure on at least the side panel near the first heat exchanger.

[0049] By providing a heat insulating structure at least on the side panel of the electrical box close to the first heat exchanger, it is possible to avoid the situation where the temperature of the inner wall of the electrical box is too low, causing water vapor in the air in the electrical box to condense into small droplets upon encountering the low-temperature inner wall. This can further prevent the small droplets from gathering together and flowing down the inner wall of the electrical box, causing a short circuit in the electrical components in the electrical box, thereby ensuring the normal operation of the electrical components in the electrical box.

[0050] Refer to the following Figures 1 to 7 Hereinafter, the utility model will be introduced. Figure 1 This is a schematic diagram of the structure of an air conditioner in one embodiment of the utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an air conditioner in one embodiment of the utility model. Figure 2 (without the upper cover); Figure 3 It is a structural schematic diagram of an electrical box of an air conditioner in one embodiment of the utility model; Figure 4 This is an exploded view of an electrical box of an air conditioner according to an embodiment of the utility model; Figure 5 yes Figure 4 A magnified view of the part A in the middle; Figure 6 yes Figure 4 A magnified view of the part B in the middle; Figure 7 yes Figure 4 Enlarged view of part C in the middle.

[0051] like Figure 1 and Figure 2 As shown, the top-mounted integrated air conditioner includes a housing 1 and a partition 21 arranged in the housing 1, a first heat exchanger (not shown in the figure), a first fan (not shown in the figure), an electronic expansion valve (not shown in the figure), a second heat exchanger 22, a compressor 23, a second fan 24 and an electrical box 3. The housing 1 includes an upper cover 11 and a base 12, and the upper cover 11 is buckled on the base 12. The partition 21 is buckled on the right half of the base 12, and the partition 21 divides the interior of the housing 1 into a first cavity and a second cavity. The first heat exchanger and the first fan are arranged in the first cavity, the electronic expansion valve, the second heat exchanger 22, the compressor 23, the second fan 24 and the electrical box 3 are arranged in the second cavity, and the electrical box 3 is arranged between the first heat exchanger and the second heat exchanger 22. The compressor 23, the second heat exchanger 22, the electronic expansion valve, and the first heat exchanger are connected through a refrigerant pipeline to form a refrigerant circulation loop. Among them, in the cooling mode, the first heat exchanger acts as an evaporator and the second heat exchanger 22 acts as a condenser.

[0052] like Figure 3 and Figure 4As shown, the electrical box 3 includes a box body, which includes a base 31 and a cover 32; the base 31 includes a first side plate 311, a second side plate 312, a third side plate 313 and a bottom plate 314, the first side plate 311 and the second side plate 312 are parallel to each other, the third side plate 313 is connected to the same side edge of the first side plate 311 and the second side plate 312, the bottom plate 314 is connected to the lower edge of the third side plate 313, and two positioning holes 3141 are formed on the bottom plate 314; the cover 32 includes a fourth side plate 321 and a top plate 322, the upper edge of the fourth side plate 321 is connected to one side of the top plate 322, the lower edge of the fourth side plate 321 is formed with a first flange 3211, the first flange 3211 is formed with two positioning pieces 32111 that match the positioning hole 3141, the left and right edges of the fourth side plate 321 are formed with second flanges 3212 that match the first side plate 311 and the second side plate 312, and the left and right edges of the top plate 322 are formed with third flanges 3221 that match the first side plate 311 and the second side plate 312. The positioning piece 32111 is inserted into the positioning hole 3141, and the cover body 32 and the base body 31 are buckled together to form a box body, and electrical components such as a capacitor 41 and a relay 42 are arranged in the box body, and the capacitor 41 is fixed to the third side plate 313 by a clip, and the relay 42 is fixed to the bottom plate 314. When the electrical box 3 is installed in place, the cover body 32 is close to the first heat exchanger. The inner wall of the cover body 32 is fitted with a pad 5, and the pad 5 is made of a heat-insulating material (such as rock wool, polyurethane foam material, glass fiber wool board, etc.). During daily use of the air conditioner, the first heat exchanger serves as an evaporator, and the air temperature near the first heat exchanger is relatively low. By setting the pad 5, it is possible to prevent the water vapor in the air of the electrical box 3 from contacting the cover body 32 with a lower temperature and condensing into small droplets, thereby preventing the small droplets from gathering together and flowing down the inner wall of the electrical box 3 to cause a short circuit in the electrical components in the electrical box 3, thereby ensuring the normal operation of the electrical components in the electrical box 3. Preferably, the pad 5 is made of a water-absorbing heat-insulating material (such as a cotton pad). Through such a setting, even if small droplets are generated on the inner wall of the cover body 32, the pad 5 can absorb the generated small droplets to prevent the generated small droplets from gathering and dripping.

[0053] like Figures 3 to 5As shown, a first wire-passing hole 3111 is formed on the first side plate 311. The first wire-passing hole 3111 is a circular through hole, and a first elastic protective structure 61 is provided at the first wire-passing hole 3111. The first elastic protective structure 61 includes an elastic ring 611 covering the edge of the first wire-passing hole 3111 and four elastic melon-shaped structures 612 evenly distributed on the inner edge of the elastic ring 611. The four elastic melon-shaped structures 612 cover the middle opening area of ​​the elastic ring 611 in a natural state. When the cable passes through the first wire-passing hole 3111, the elastic melon-shaped structures 612 can be deformed to allow the cable to pass through the first wire-passing hole 3111, and can contact the surface of the cable to reduce the gap between the edge of the first wire-passing hole 3111 and the cable. Through such a setting, it is possible to prevent the edge of the first wire hole 3111 from cutting the insulation layer of the cable, and to reduce the gap between the edge of the first wire hole 3111 and the cable when the cable passes through the first wire hole 3111, thereby preventing mosquitoes from entering the electrical box 3 through the first wire hole 3111.

[0054] like Figure 4 and Figure 6 As shown, a second wire hole 3121 is formed on the second side plate 312, and the second wire hole 3121 is a half hole (i.e., a hole with one side open), and a second elastic protective structure 62 is provided at the second wire hole 3121. The second elastic protective structure 62 includes an elastic strip 621 wrapped around the edge of the second wire hole 3121 and elastic blocks 622 formed near the two ends of the elastic strip 621. Through such a setting, it is possible to prevent the edge of the first wire hole 3111 from cutting the insulation layer of the cable. In addition, the cable does not need to be inserted into the second wire hole 3121 from the end, but only needs to be moved in from the notch of the second wire hole 3121, which facilitates the installation of the cable.

[0055] like Figure 7 As shown, the edge of the second flange 3212 away from the fourth side plate 321 is set to a curved surface structure. Specifically, the side edge of the second flange 3212 away from the fourth side plate 321 is reversely folded to form a curved surface structure. When the cover body 32 and the base body 31 are buckled, the edge of the second flange 3212 away from the fourth side plate 321 is close to the second wire hole 3121. Through such a setting, it is possible to prevent the second flange 3212 from cutting the insulation layer of the cable passing through the second wire hole 3121, thereby reducing the risk of cable leakage.

[0056] It should be noted that the arrangement of the gasket 5 on the inner wall of the cover 32 is only a specific arrangement, which can be adjusted in practical applications, such as the arrangement of the gasket 5 on the outer wall of the cover 32, or the arrangement of the gasket on both the inner wall and the outer wall of the cover 32; of course, the gasket may not be arranged, and the cover 32 may be arranged as a heat-insulating structure with a vacuum-insulated cavity. In addition, the second flange 3212 is reversely folded away from the side of the fourth side plate 321 to form a curved surface structure, which is only a specific arrangement, which can be adjusted in practical applications, such as the side of the second flange 3212 away from the fourth side plate 321 is directly ground into a curved surface. In addition, the first elastic protective structure 61 includes an elastic ring 611 coated on the edge of the first wire hole 3111 and four elastic melon-shaped structures 612 evenly distributed on the inner edge of the elastic ring 611. The four elastic melon-shaped structures 612 cover the central opening area of ​​the elastic ring 611 in a natural state. This is only a more preferred setting method, and it can be adjusted in actual applications. For example, the first elastic protective structure 61 only includes the elastic ring 611 coated on the edge of the first wire hole 3111, and does not include the above-mentioned four elastic melon-shaped structures 612. This can still prevent the edge of the first wire hole 3111 from cutting the insulation layer of the cable, but cannot prevent mosquitoes from entering the electrical box 3 through the first wire hole 3111.

[0057] The pad 5 as a heat insulating structure is only provided at the cover 32, which can prevent the water vapor in the air of the electrical box 3 from condensing into small droplets by contacting the cover 32 with a lower temperature, and is also conducive to the heat dissipation of the electrical components in the electrical box 3. In another feasible embodiment, the pad 5 as a heat insulating structure can be provided on all the inner walls of the box body of the electrical box 3, but this is not conducive to the heat dissipation of the electrical components in the electrical box 3, and liquid cooling is required to transfer the heat generated by the electrical components.

[0058] In another feasible embodiment, the box body of the electrical box 3 is configured to include a shell structure having an opening on only one side and a cover body pivotally connected to the opening.

[0059] Although the above embodiment is introduced in conjunction with a roof-mounted integrated air conditioner, this does not constitute a limitation to the air conditioner of the present invention. The air conditioner of the present invention may also be a split air conditioner, which includes an outdoor unit and an indoor unit. The indoor unit includes a shell and a first heat exchanger and a first fan arranged in the shell, and the electrical box is arranged in the shell of the indoor unit.

[0060] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, 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 invention.

Claims

1. An electrical box of an air conditioner, the air conditioner comprising a housing, a first heat exchanger serving as an evaporator in a cooling mode being arranged in the housing, characterized in that: The electrical box is installed in the shell, and the electrical box includes a box body, and a heat insulation structure is provided on at least a side plate of the box body close to the first heat exchanger.

2. The electrical box according to claim 1, characterized in that: The thermal insulation structure is a thermal insulation pad.

3. The electrical box according to claim 1, characterized in that: The housing is provided with a second heat exchanger serving as a condenser in cooling mode, and the electrical box is installed between the first heat exchanger and the second heat exchanger. The heat insulation structure is not provided on the side plate of the box body close to the second heat exchanger.

4. The electrical box according to claim 1, characterized in that: The box body is provided with a wire-passing hole, and the edge of the wire-passing hole is covered with an elastic protective structure.

5. The electrical box according to claim 4, characterized in that: The box body comprises: A base, the base comprising a first side panel, a second side panel, a third side panel and a bottom panel, the first side panel and the second side panel are parallel to each other, the third side panel is connected to or integrally formed with the same side edges of the first side panel and the second side panel, and the bottom panel is connected to or integrally formed with the lower edge of the third side panel; A cover body, the cover body comprising a fourth side plate and a top plate, the upper edge of the fourth side plate being connected to or integrally formed with one side of the top plate, and the side edge of the fourth side plate being formed with a flange structure cooperating with the first side plate and the second side plate; The base body and the cover body are buckled together to form the box body.

6. The electrical box according to claim 5, characterized in that: The wire hole includes a half hole formed on the first side plate and / or the second side plate, and the elastic protective structure includes an elastic strip wrapped around the edge of the half hole and elastic blocks formed near both ends of the elastic strip.

7. The electrical box according to claim 6, characterized in that: The edge of the flange structure away from the fourth side plate is configured as a curved surface structure.

8. The electrical box according to claim 5, characterized in that: The wire passing hole includes a through hole formed on the first side plate and / or the second side plate, and the elastic protective structure includes an elastic ring covering the edge of the through hole and a plurality of elastic melon-shaped structures evenly distributed on the inner edge of the elastic ring, and the plurality of elastic melon-shaped structures cover the middle opening area of ​​the elastic ring in a natural state.

9. The electrical box according to any one of claims 5 to 8, characterized in that: A positioning piece is formed at the bottom of the fourth side plate, and a positioning hole is formed on the bottom plate. The positioning piece is inserted into the positioning hole to realize the positioning of the fourth side plate and the bottom plate.

10. An air conditioner, characterized in that: The air conditioner comprises the electrical appliance box according to any one of claims 1 to 9.

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